BACKGROUND Patients with acute-on-chronic liver failure(ACLF)experience severe immune dysfunction.Liver transplantation(LT)significantly improves survival outcomes.However,the characteristics of peripheral blood lymph...BACKGROUND Patients with acute-on-chronic liver failure(ACLF)experience severe immune dysfunction.Liver transplantation(LT)significantly improves survival outcomes.However,the characteristics of peripheral blood lymphocyte subsets(PBLSs)in this patient population are not well defined,and the dynamics of immune reconstitution post-LT are insufficiently understood.AIM To characterize PBLSs in patients with ACLF prior to LT and to evaluate PBLS reconstitution after LT.METHODS Clinical data from patients undergoing LT in the Transplantation Center,The Third Xiangya Hospital from January 2022 to December 2023 were analyzed retrospectively.Our cohort comprised 44 patients with ACLF,16 patients with acute decompensation of cirrhosis,and 23 patients with compensated cirrhosis.Twenty healthy volunteers were included as controls.PBLSs were evaluated across all groups.The relationship between PBLSs and post-LT prognosis was assessed,and dynamic changes in PBLSs among patients with ACLF were analyzed at different time points.RESULTS Patients with ACLF exhibited a marked reduction in PBLSs compared with healthy volunteers.Natural killer(NK)cell counts were further reduced in patients with ACLF when compared with patients with compensated cirrhosis.PBLSs did not correlate with the etiology or severity of ACLF or with established liver failure scores.Following LT,a rapid restoration of NK cells and B cells was observed in patients with ACLF.However,the cluster of differentiation(CD)3+T cell and CD4+T cell counts decreased 14 days post-LT and subsequently returned to preoperative levels by day 21.CONCLUSION Patients with ACLF exhibited markedly reduced PBLSs,with decreased NK cells potentially linked to progression from compensated cirrhosis to liver failure.NK and B cell were rapidly restored after LT.展开更多
BACKGROUND Advanced gastric cancer(AGC)remains a challenging malignancy with poor prognosis.The combination of oxaliplatin and trastuzumab has shown promising results in AGC treatment.This study aimed to investigate t...BACKGROUND Advanced gastric cancer(AGC)remains a challenging malignancy with poor prognosis.The combination of oxaliplatin and trastuzumab has shown promising results in AGC treatment.This study aimed to investigate the effects of oxaliplatin and trastuzumab combination therapy on serum tumor markers and T lymphocyte subsets in patients with AGC and to explore their potential as predictive biomarkers for treatment response.AIM To investigate the impact of oxaliplatin and trastuzumab combination therapy on serum markers and T cell subsets in patients with AGC.METHODS This prospective study enrolled 60 patients with AGC.All patients received oxaliplatin(130 mg/m^(2),every 3 weeks)and trastuzumab(8 mg/kg loading dose,followed by 6 mg/kg every 3 weeks)for six cycles.Serum carcinoembryonic antigen(CEA),cancer antigen 19-9(CA19-9),and cancer antigen 72-4(CA72-4)were measured before and after treatment.T-lymphocyte subsets,including CD3+,CD4+,CD8+,and CD4+/CD8+ratios,were also evaluated.The clinical response was assessed using the Response Evaluation Criteria in Solid Tumors version 1.1.RESULTS After six cycles of treatment,the CEA,CA19-9,and CA72-4 serum levels significantly decreased compared to baseline levels(P<0.001).The percentages of CD3+and CD4+T lymphocytes increased significantly(P<0.05),whereas the percentage of CD8+T lymphocytes decreased(P<0.05).The CD4+/CD8+ratio also significantly increased after treatment(P<0.05).Patients with a higher decrease in serum tumor markers(≥50%reduction)and a higher increase in CD4+/CD8+ratio(≥1.5-fold)showed better clinical response rates(P<0.05).CONCLUSION Oxaliplatin and trastuzumab combination therapy effectively reduced serum tumor marker levels and modulated T lymphocyte subsets in patients with AGC.Combination therapy not only has a direct antitumor effect,but also enhances the immune response in patients with AGC.Serum tumor markers and T lymphocyte subsets may serve as potential predictive biomarkers for treatment response in patients with AGC receiving combination therapy.展开更多
Objective:To study the effect of Helicobacter pylori infection on rheumatoid arthritis and T-lymphocyte subpopulations in patients with rheumatoid arthritis and to provide a new method for the treatment of rheumatoid ...Objective:To study the effect of Helicobacter pylori infection on rheumatoid arthritis and T-lymphocyte subpopulations in patients with rheumatoid arthritis and to provide a new method for the treatment of rheumatoid arthritis by removing Helicobacter pylori from patients.Methods:60 patients with rheumatoid arthritis admitted to the hospital from May 2022 to May 2023 were selected for the study,and all patients underwent a 13-carbon urea breath test to detect gastric H.pylori and the test results showed that 20 cases were negative and 40 cases were positive.The 40 positive patients were divided into the treatment group(n=20)and non-treatment group(n=20)by random number table method and the treatment group was given anti-Helicobacter pylori treatment,and the non-treatment group was given maintenance rheumatoid basic treatment,comparing the anti-cyclic citrulline peptide(CCP),DS28 score,peripheral blood T-lymphocyte subsets(CD4^(+)T-lymphocytes,CD8^(+)T-lymphocytes,CD4^(+)/CD8^(+)ratio)before and after the treatment of patients by 13-carbon urea respiration test(pylori-negative group,20 patients)and those who were positive for the treatment of H pylori(pylori-positive group,40 patients).Besides,the correlation of peripheral blood T-lymphocyte subsets and disease activity between treatment and non-treatment groups in the pylori-positive group was identified together with the correlation of DS28 scores,TNF-αlevels,sedimentation and immunoglobulin,lymphocyte subsets in the pylori-positive treatment group and positive non-treatment group as well as the level of globulin,lymphocyte subsets,and peripheral blood lymphocytes before and after treatment.Results:Before treatment,CCP,DS28 score,CD8^(+)T lymphocyte level of the pylori-negative group were lower than that of the positive group,and CD4^(+)T lymphocyte and CD4^(+)/CD8^(+)ratio were higher than that of the positive group(P<0.05);after treatment,the indexes of the pylori-positive group improved,and there was no significant difference in the comparison of the indexes with those of the pylori-negative group(P>0.05);the positive treatment group had a DS28(3.19±1.02)points,positive non-treatment group DS28(5.36±1.85)points,non-treatment group DS28 score and CD4^(+)T lymphocytes,CD4^(+)/CD8^(+)negative correlation with CD8^(+)T lymphocytes showed a positive correlation(P<0.05);before the treatment,pylori-positive treatment group and non-treatment group DS28 scores,TNF-αlevels,peripheral blood T lymphocyte subpopulation levels were not significantly different(P>0.05);after treatment,DS28 score,TNF-αlevel,CD8^(+)T of the treatment group were lower than those of the non-treatment group,and CD4^(+)T lymphocytes and CD4^(+)/CD8^(+)ratio were higher than those of the non-treatment group(P<0.05).Conclusion:H.pylori affects the level of T lymphocyte subsets in patients with rheumatoid arthritis,and there is a certain correlation between the two.Removal of H.pylori can improve the level of T lymphocyte subsets,which is important for the treatment of patients with rheumatoid arthritis.展开更多
Objective： To evaluate whether radiofrequency ablation （RFA） might have an influence on immune status in hepatocellular carcinoma （HCC） patients. Methods： We measured the T lymphocytes, B lymphocyte and NK cell...Objective： To evaluate whether radiofrequency ablation （RFA） might have an influence on immune status in hepatocellular carcinoma （HCC） patients. Methods： We measured the T lymphocytes, B lymphocyte and NK cells, and determined the population of Thl, Th2, Tcl and Tc2 of peripheral blood samples taken from 26 HCC patients before and after RFA. Results： The proportion of Typel cells （Thl and Tcl） and NK cells were significantly increased after RFA, especially in patients of the following subgroups： male, age〉55 years, pathological grade Ⅰ-Ⅱ tumor, clinical stage Ⅰ-Ⅱ or Child-Pugh A and B. Conclusion： TypeⅠ cells and NK cells in HCC patients were increased in a short period after RFA.展开更多
Objective: To study the expression of Fas and Bcl-2proteins on T lymphocyte subsets in the peripheralblood of relapsing patients with condyloma acuminatum(CA) and healthy controls. Methods: Flow cytometry (permeabizat...Objective: To study the expression of Fas and Bcl-2proteins on T lymphocyte subsets in the peripheralblood of relapsing patients with condyloma acuminatum(CA) and healthy controls. Methods: Flow cytometry (permeabization andstaining procedure with conjugated antibodies) wasused. Results: We observed that the expression of Fasprotein on CD4^+ T lymphocyte subset of CA patientswas significantly higher than that of healthy controls(P<0.01). Conclusions: Increased expression of Fas proteinon CD4^+ T lymphocyte subset may be a cause of de-creased percentage of CD4^+ T lymphocyte subset. Thisinduces the increased ratio of CD4^+/CD8^+.展开更多
The present report evaluates the effects of formaldehyde (FA) exposure on peripheral lymphocytes by using heth genetic and immunological parameters. Twenty-three non-smoking students in the study had inhalation exposu...The present report evaluates the effects of formaldehyde (FA) exposure on peripheral lymphocytes by using heth genetic and immunological parameters. Twenty-three non-smoking students in the study had inhalation exposure to 0.508 ±0. 299 mg/m3 of FA for a Period of 8 weeks (3h × 3 times each week) during anatomy classes. As for composition of lymphocyte subsets after FA exposare,significant increase was found in the percentage of CD19(B cells), while sighficant decrease was observed in CD3(total T cells), CD4(T helper-inducer cells), and CD8(T cytotoxic-suppressior cells) with a P<0 .01. Increase in the ratio of T-helper-inducer cells to T-cytotoxic-suppressor cells (T4 / T8) was also observed with statistical sighcance after exposure (P < 0.001). In the meanwhile,no significant difference (P > 0 .05) was reported between lymphocyte prolifendion rate and sisterchromatid exchange (SCE) at the exposure level and duration. It is suggested that the lymphocyte subsets may be most susceptible to the effects of FA, though a single immunological endpoint is rarely related with pathophysiological interpretation.展开更多
The present study was designed to characterize the blood chemistry, hematology, and lymphocyte subsets in pregnant rhesus monkeys and provide baseline parameters for future studies of reproductive and developmental to...The present study was designed to characterize the blood chemistry, hematology, and lymphocyte subsets in pregnant rhesus monkeys and provide baseline parameters for future studies of reproductive and developmental toxicity and developmental immunotoxicity. Harem-mating was used in 96 female and 16 male rhesus monkeys. Pregnancy was confirmed on gestation day(GD)18 by ultrasound. The blood samples of rhesus monkeys were collected at various times(20 days before pregnancy and GD20, 100 and 150). The analyses of blood chemistry, hematology, and lymphocyte subsets were performed. Copmpared with 20 days before pregnancy, Significant decreases(P < 0.05) were observed in HCT and RBC on GD20, GD150 and in HGB on GD150, Significant increases in NEUT and decreases in LYMPH on GD20 were observed. Significant decreases in ALB from GD20 to GD150 were observed, significant decreases in TP was observed on GD100. Significant increases in mean GLU were observed on GD20 and GD150 during pregnancy. Significant decreases(P < 0.05) in CD20+ subsets on GD100, GD150 and CD4+/CD8+ ratio on GD150 were observed, The significant changes of MCV, MCHC, RDW-SD, MCV, MONO, ALT, AST, GLB, ALP, TBIL, DBIL, IBIL, GGT, CR-S, URIC, TC, TG and CK were observed during the pregnant period, but no biologic change were observed, There were no significant changes in MCH, RDW-CV, MPV, BUN, CD3+, CD4+ and CD8+ during pregnancy. These data provide a database for preclinical study in rhesus monkeys. Physiological anemia, hyperglycemia, and immune suppression may occur in pregnant rhesus monkey which is similar to that found in human, and it is essential to distinguish the physiological changes from the pharmacological effects in reproductive and developmental toxicity and developmental immunotoxicity studies of pharmaceuticals.展开更多
AIM: To study the transformation of T lymphocyte subsets in children with Heliobacter pylori (H pylori) infection. METHODS: The H pylori infection status were determined by a combination of ELISA and Western blot (imm...AIM: To study the transformation of T lymphocyte subsets in children with Heliobacter pylori (H pylori) infection. METHODS: The H pylori infection status were determined by a combination of ELISA and Western blot (immunoblot) technique in 98 children and T lymphocyte subsets in peripheral blood were determined by flow cytometrical analysis.RESULTS: There were 75 children positive with H pylori infection and 23 negative in 98 children. Comparing the proportion of peripheral blood T lymphocytic subsets in children with H pylori infection and without H pylori infection, it was found that a higher proportion of CD4 T-cells in infected children (39.02±7.71 vs34.25±10.73,t = 2.246,P＜0.05) and higher value of CD4 to CD8 T-cells ratio (1.51±0.52 vs 1.25, t= 2.104,P＜0.05) were present, but there were not significant differences in CD3 T-cells and CD8 T-cells (73.11±10.02 vs69.49±17.08, 27.22±6.07vs 28.27±8.67, P＞0.05).CONCLUSION: Th1 cell-mediated immune responses may be induced by H pylori infection in children.展开更多
Objective: To observe the clinical effect of integrative Chinese a nd western medicine (ICWM) in treatment of patients with severe acute respirator y syndrome (SARS) and its influence on their T lymphocyte subsets.Met...Objective: To observe the clinical effect of integrative Chinese a nd western medicine (ICWM) in treatment of patients with severe acute respirator y syndrome (SARS) and its influence on their T lymphocyte subsets.Methods: Fifty one patients with SARS of severe type were obser ved with synchronous non randomized controlled method. They were divided into the ICWM group (29 patients) and the western medicine (WM) group (22 patients). Western medical treatment was applied to both groups, but to the ICWM group, Ch inese medicine was given additionally. The therapeutic course was 2-3 weeks for both groups. Clinical effect and changes of T lymphocyte subsets (CD4 +) aft er treatment were observed.Results: In the ICWM group, 26 patients (89.66%) were cured and 3 (10.34%) died, while in the WM group, 12 (54.55%) cur ed and 10 (45.45%) died, thus comparison of the cure rate between the two groups showing significant difference ( P <0.01). The score of clinical symptoms in the ICWM group was decreased from 7.14±5.20 scores before treatment to 1.82±3. 75 scores after treatment, while in the WM group, it lowered from 7.36±3.84 sco res before treatment to 5.17±4.17 scores after treatment, significant diffe rence shown in the comparison of the values between the two groups after treatme nt (P<0.01). Immunological function test showed that CD4 + T lymphocyte in the ICWM group rose from 361±278 cells/mm 3 before treatment to 630±454 c ells/mm 3 after treatment, showing significant difference( P <0.01 );bu t in the WM group, it merely rose from 288±186 cells/mm 3 to 376±285 cells/mm 3 in the corresponding period (P>0.05). Conclusion: ICWM could improve the clinical symptoms of SARS pa tients markedly, enhance their T lymphocyte immune function, and reduce their mortality.展开更多
T lymphocyte subsets in the liver were detected by Avidin-Biotin Complex (ABC) assay in 22 patients with advanced schistosomiasis (AS) and 5 cases of AS accompanied with hepatitis B. T lymphocytes in the liver of AS p...T lymphocyte subsets in the liver were detected by Avidin-Biotin Complex (ABC) assay in 22 patients with advanced schistosomiasis (AS) and 5 cases of AS accompanied with hepatitis B. T lymphocytes in the liver of AS patients were distributed in the peripheral layer of egg granuloma or the area near eggs in non-granuloma. No infiltrative T lymphocytes were observed in area with extensive fibrosis. There was infiltration of many T cells in the portal tract, piecemeal and focal necro- sis area as well as in hepatic sinus in AS patients accompanied with hepatitis B. CD8+ T cells (sup pressor/cytotoxic T cells, Ts/Tc) in the liver were predominant in the two groups. In AS patients, marked hepatic fibrosis, a small number of T cell infiltration and slight hepatocellular degeneration and necrosis were observed. However, obvious hepatocellular degeneration and necrosis were seen in AS patients accompanied with hepatitis B, and 3 cases of them developed active liver cirrhosis. The results indicated immune response was weak in the liver in AS patients and T. cells might be predominant in the subset of CDS+ T lymphocytes. Cellular immune response was relatively strong in AS patients accompanied with hepatitis B and the infiltrative CD8+ T lymphocytes might be mainly Tc cells.展开更多
Objective To study the humoral immunity status and distribution pattern of lymphocyte subgroups of peripheral blood mononuclear cell (PBMC) in patients with Kashin-Beck Disease (KBD), and their relationship with eryt...Objective To study the humoral immunity status and distribution pattern of lymphocyte subgroups of peripheral blood mononuclear cell (PBMC) in patients with Kashin-Beck Disease (KBD), and their relationship with erythrocyte selenium. Methods 23 X-ray diagnosed patients, 22 age- and sex- matched healthy children in KBD affected area (KAA), and 25 in KBD non-affected area (KNAA) were randomly selected. Immunohistochemistry with monoclonal antibodies anti-CD4, anti-CD8, anti-CD20 was conducted to analyze the lymphocyte subsets. Serum IgM, IgA, IgG, Complement C3 and C4 were assayed using rate nephelometry (Array 360 System, USA). The contents of erythrocyte selenium was determined by 2,3-diaminonaphthalene fluorescence assay. Results CD4+ and CD8+ cells percentage in PBMCs and serum IgA were significantly lower in KAA than those in KNAA(P< 0.05). CD20+ percentage in KAA displayed a decreasing trend compared to KNAA, although not statistically significantly. No statistical differences were found in CD4/CD8 ratio, serum IgG, IgM, C3 and C4 levels. Erythrocyte selenium level in KAA still showed a pronounced decrease compared to that in KNAA. Correlation analysis showed that erythrocyte selenium contents had a strong association with the CD4 cell percentage (r= 0.625, P< 0.05), as well as serum IgA (r= 0.462, P< 0.05). In addition, a moderate correlation between the serum IgA and CD4+ percentage (r= 0.130, P> 0.05) was found. Conclusion These results suggested that children in KAA had a comparably low cellular immunity level and their humoral immunity status was also in a state of moderate immune suppression. Of this immune disorder in Kashin-Beck disease patients, selenium deficiency probably played a critical role via affecting the distribution pattern of peripheral blood lymphocyte. Selenium-deficiency and immune impairment maybe both have something to do with the cause-effect chain of KBD.展开更多
Objective To investigate changes in T lymphocyte subsets and NK cells in patients with simple Graves’ disease(GD)and Graves’ disease combined with type 2 diabetes mellitus(GD/T2DM).Methods Fifteen cases of GD/T2DM w...Objective To investigate changes in T lymphocyte subsets and NK cells in patients with simple Graves’ disease(GD)and Graves’ disease combined with type 2 diabetes mellitus(GD/T2DM).Methods Fifteen cases of GD/T2DM were selected from our hospital from November 2001 to November 2004.Before and after therapy thyroid function,thyroglobulin antibody(TGA),thyroid microsomal antibody(TMA)and blood glucose level were measured,and T lymphocyte subsets(CD3,CD4,CD8,CD4/CD8)and NK cells(CD56)were measured by immunofluorescence double labeling monoclonal antibody and flow cytometry,respectively.At the same time,comparison was made with simple GD(15 cases),T2DM(15 cases)and healthy control(20 cases).Results Before therapy,CD4/CD8,CD4 and NK cells in GD/T2DM were less than normal,and there was no significant difference in comparison with simple GD(P<0.05).In T2DM group,only CD4/CD8 and CD4 were less than those of healthy controls(P<0.05).When thyroid function recovered after 1 to 3 months of methimazole treatment in both GD/T2DM and simple GD groups,various indexes recovered,which were more obvious in simple GD.Conclusion Immune hypofunction of GD may be the key to the immune abnormality of GD/T2DM,which is more significant than that of simple GD or T2DM.The recovery of thyroid function and immune abnormality is not consistent,and the recovery of GD is more significant than that of GD/T2DM.展开更多
Objective To study the changes of lymphocyte subsets and regulatory T cells in peripheral blood of patients with acute leukemia(AL) and its clinical significance.Methods The different levels of peripheral blood lympho...Objective To study the changes of lymphocyte subsets and regulatory T cells in peripheral blood of patients with acute leukemia(AL) and its clinical significance.Methods The different levels of peripheral blood lymphocyte subsets and regulatory T cells of 60 AL patients and 40 normal controls were detected with flow cytometry.Results Compared with the normal controls,the percentages of CD3+ T cells,CD4+ T cells,CD16+CD56+ NK cells and the ratio of CD4+ /CD8+ obviously decreased in newly diagnosed AL group(P <0.05),while their percentages of CD8+ T cells and CD19+ B cells significantly increased(P <0.01).The percentage of CD4+ T cells and the ratio of CD4+ /CD8+ in acute lymphoblastic leukemia(ALL) group were much lower than those in acute myelogenous leukemia(AML) group(P <0.01).Compared with these in control group,the proportions of CD4+ CD25high Treg cells and CD4+ CD25+ T cells in newly diagnosed AL group were significantly increased(P <0.01).Conclusion Cellular immune function is significantly abnormal in patients with AL.Compared with AML patients,ALL patients had poorer cellular immune function.The increased CD4 + CD25high Treg cells might be one of the important reasons of immunosuppression in AL.Detection of lymphocyte subsets and regulatory T cells is of clinical value on the evaluation of therapeutic effect and prognosis in AL patients.展开更多
In the study,we utilized the OKT monoclonal antihuman T Iymphocyte antibodies by indirect immunoenzyme staining method to determinc T lymphocyte subsets in the peripheral blood of 72 cancer patients treated by local r...In the study,we utilized the OKT monoclonal antihuman T Iymphocyte antibodies by indirect immunoenzyme staining method to determinc T lymphocyte subsets in the peripheral blood of 72 cancer patients treated by local radiotherapy.The haematological assays were performed immediately Pre-and Postradiotherapy.In the postoperative radiotherapy group(PR group) of 40 breast cancer patients treated by prophylactic postoperative radiotherapy,after radiotherapy blood platelet,white blood cell and lymphocyte count decreased significantly.CD2,CD4 and CD8 cell counts all very significantly decreased.Proportion of CD2 and CD2 had no apparent change but proportion of CD8 increased significantly.The group appeared apparent hypoimmunity.While the complete response group(CR group) of 32 cancer paticnts treateil with local radiothcrapy,after radiotherapy blood Platelet,white blood cell and lymphocyte count had no significant decrease.CD2,CD4 and CD8 cell count had no significant decrease.Proportion of CD2,CD4 and CD8 had no apparent change.The CR group had no apparent hypoimmunity.Comparing decrease rate of immunologic parameters in these two groups,decrease rate of white blood cell,lympheeyte and T lymphocyte subsets count in CR group significantly were slightened rather than pR group.This study proved that effect of radiation-damaging tumor cell enhance antigenicity of the tumor and stimulate host cell immunity including a type of T-lymphogenesis.Induced hypoimmunity by postoperative radiotherapy should be avoided in this point of view.展开更多
Objective To observe the variations of the cellular immunological function in patients with primary hepatic carcinoma both pre-TACE(transcatheter arterial chemoembolization,TACE).Methods T lymphocyte subset CD4,CD8 an...Objective To observe the variations of the cellular immunological function in patients with primary hepatic carcinoma both pre-TACE(transcatheter arterial chemoembolization,TACE).Methods T lymphocyte subset CD4,CD8 and CD4/CD7 ratio in 45 patients with primary hepatic carcinoma both pre-TACE and post-TACE were measured by flow Cytometer,and compared with the result of T lymphocyte subset in 19 healthy people as normal control samples.Results The CD4 and CD4/CD8 ratio in patients with primary hepatic carcinoma were significantly lower than those in normal control(P<0.05),while CD8 higher(P<0.05);The CD4 and CD4/CD8 ratio in patients with primary hepatic carcinoma were much more lower after TACE than those before TACE(P<0.05),while CD8 was higher but had no significant difference(P>0.05).Conclusion The cellular immunological function in patients with primary hepatic carcinoma decreased and is much more lower after TACE.展开更多
Background:Colorectal cancer(CRC)is a common gastrointestinal malignancy.The T lymphocyte subsets are important in the develop-ment,invasion and metastasis of tumors,including CRC.Nevertheless,limited research has exp...Background:Colorectal cancer(CRC)is a common gastrointestinal malignancy.The T lymphocyte subsets are important in the develop-ment,invasion and metastasis of tumors,including CRC.Nevertheless,limited research has explored the relationship between T cell subpopu-lations and the clinical characteristics of CRC.This study compared the T lymphocyte subsets in patients with CRC and healthy individuals,and assessed the relationship between these values and clinical characteristics.Methods:Peripheral blood was collected from 100 patients with CRC and 54 healthy individuals.The numbers of CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocytes,NK cells,and the CD4^(+)T/CD8^(+)T ratio in peripheral blood were measured using flow cytometry,and were compared between CRC patients and healthy individuals.Spearman's correlation analysis was performed to investigate the relationship between the T lymphocyte subsets in patients diagnosed with CRC and the levels of carcinoembryonic antigen(CEA)and thymidine kinase 1(TK1).Receiver operating characteristic(ROC)curves were utilized to evaluate the potential utility of the T lymphocyte counts in predicting lymph node metastasis,vas-cular infiltration,and high Ki-67 expression.Results:The CRC patients had lower counts of CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocytes compared to the healthy population(P<0.05).However,no significant differences were observed in the CD4^(+)/CD8^(+)ratio or NK cells(P>0.05).Notably,the CD3^(+)T,CD4^(+)T,and CD8^(+)T lym-phocyte counts were higher in patients with stageⅠ-Ⅱdisease,no lymph node metastasis,no vascular invasion,and low Ki-67 expression than in those with stageⅢ,lymph node metastasis,vascular invasion,and high Ki-67 expression(P<0.05).There was a negative association be-tween the CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocyte counts and CEA and TK1 levels in patients with CRC.The ROC curves demonstrated that CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocyte counts had significant predictive value for lymph node metastasis,vascular infiltration,and high Ki-67 expression.Conclusions:The peripheral blood CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocyte counts are related to the clinical traits of patients with CRC and can predict the prognosis of the disease.展开更多
Objective To explore the association between perceived mental stress(MS),lymphocyte subset variations,and coronary lesion severity in patients with coronary artery disease(CAD).Methods Patients with CAD were enrolled ...Objective To explore the association between perceived mental stress(MS),lymphocyte subset variations,and coronary lesion severity in patients with coronary artery disease(CAD).Methods Patients with CAD were enrolled in this study from September 2023 to May 2024.Perceived Stress Scale-14(PSS-14)was used to evaluate MS during the last 1 month.Lymphocyte subsets were analyzed,including the percentage and absolute counts of CD3^(+),CD3^(+)CD4^(+),CD3^(+)CD8^(+),CD3^(-)CD19^(+),CD3^(-)CD56^(+)16^(+),and the Th/Ts ratio.Statistical analysis was conducted using SPSS 24.0.Results This study recruited patients with 323 CAD,with an average age of 61(56,68)years,including 203 males and 120 females.According to the PSS-14,a score of 14-42 and 43-70 were categorized as normal and increased MS,respectively.Patients with CAD with increased MS had significantly higher Gensini scores than those with normal MS[37(19,64)vs.28(12,50),Z=-2.19,P=0.029].Male CAD patients with increased MS exhibited significantly higher Gensini scores[39(20,58)vs.26(12,45),Z=-2.37,P=0.018],levels of CD3^(+)CD8^(+)%[28.3%(23.6%,36.6%)vs.25.9%(21.0%,32.4%),Z=-2.05,P=0.041],and CD3^(+)CD8^(+)absolute value[485(346,675)vs.396(309,510)cells/μl,Z=-2.55,P=0.011]than those with normal MS.In male patients with CAD,a positive correlation was observed between Gensini scores(correlation coefficient:O.181,P=0.011),PSS-14 scores,and CD3^(+)CD8^(+)absolute value(correlation coefficient:0.162,P=0.038).Conclusion This study reveals a positive correlation between MS and coronary stenosis severity,with notable sex differences.In male patients with CAD,higher levels of MS are associated withmore severe coronarystenosis.The potential underlying mechanism may involve the regulation of lymphocyte subsets.展开更多
Objective:To explore the difference of lymphocyte subsets in peripheral blood(PB)between aplastic anemia(AA)and hypoplastic myelodysplastic syndrome(hypo-MDS)patients,meanwhile to compare the clinical parameters obtai...Objective:To explore the difference of lymphocyte subsets in peripheral blood(PB)between aplastic anemia(AA)and hypoplastic myelodysplastic syndrome(hypo-MDS)patients,meanwhile to compare the clinical parameters obtained from PB and bone marrow(BM).Methods:The lymphocyte subsets in hypo-MDS(n=25)and.AA(n=33)patients were investigated by flow cytometry.Meanwhile,the differences in PB cell counts,biochemical indicators,BM cell counts and abnormal chromosomes between the two groups were analyzed.Results:The percentage of CD8^(+)T cells in AA group was significantly higher than that in hypo-MDS group(P=0.001),while the percentage of CD4^(+)T cells and the CD4^(+)/CD8^(+)ratio in AA group were obviously lower than those in hypo-MDS group(P=0.015 and 0.001,respectively).Furthermore,the proportion of CD4^(+)and CD8^(+)activated T(TA)cells,and memory Tregs in AA group was distinctly lower than those in hypo-MDS group(P=0.043,0.015 and 0.024,respectively).Nevertheless,the percentage of CD8^(+)naive T(TN)cells in AA patients was remarkably higher(P=0.044).And hypo-MDS patients had declined lymphocyte counts(P=0.025),increased levels of total bilirubin(TBil),lactate dehydrogenase(LDH),vitamin B12 and proportion of BM blasts than AA patients(P=0.019,0.023,0.027 and.0.045,respectively).Conclusion:In this study it was confirmed that the percentages of CD4^(+)and CD8^(+)TA cells,memory Tregs and CD8^(+)TN cells were significantly different between AA and hypo-MDS patients,which provide an essential basis for the identification of these two diseases.展开更多
Objective:To retrospectively analyze the expression and significance ofγδT cells and lymphocyte subsets in peripheral blood on patients with multiple myeloma(MM).Methods:Fifty-five patients with multiple myeloma adm...Objective:To retrospectively analyze the expression and significance ofγδT cells and lymphocyte subsets in peripheral blood on patients with multiple myeloma(MM).Methods:Fifty-five patients with multiple myeloma admitted to Yangpu Hospital Affiliated to Tongji University from January 2022 to August 2023 were selected as the disease group,and were categorized into stage I group,stage II group and stage III group according to the International Staging System(ISS)of multiple myeloma.All included patients were consecutive visits.Another 30 cases of healthy people with physical examination were selected as the control group.Flow cytometry was used to detect theγδT cells and lymphocyte subsets in the peripheral blood of the subjects.After clinical indicators of patients and healthy controls were collected,the statistical analysis was conducted.Results:Compared with the control group,the percentage ofγδT cells and CD8^(+)T cells in the disease group were higher,while,the absolute numbers of total peripheral blood lymphocytes(LYMT)and CD19^(+)B cells,percentage of CD19^(+)B cells,CD3^(+)T cells,CD4^(+)T cells were lower(P<0.05).The percentage ofγδT cells(P<0.001),the percentage of CD19^(+)B cells(P=0.003),the absolute number of CD3^(+)T cells(P=0.010),the absolute number of CD8^(+)T cells(P=0.002)were the significant influential factors of MM.γδT cells(P=0.004),neutrophils(P<0.001),neutrophil to lymphocyte ratio(P=0.003),and white blood cell count(P<0.001)were statistically different in different stages.ROC curve suggested that the area under the curve of the percentage ofγδT cells in predicting the MM were 0.973(P<0.001)which had certain diagnostic value.Conclusions:γδT cells and lymphocyte subsets(CD8^(+)T cells,CD19^(+)B cells,CD3^(+)T cells,etc.)in patients with newly diagnosis of MM can reflect the immune function of the patient’s organism,which is a key factor of MM.γδT cells influence the staging of MM patients,and also have certain diagnostic value.展开更多
Objective To study the alteration of peripheral lymphocyte subsets in severe acute respiratory syndrome (SARS) patients and to help improve the early diagnosis of the disease Methods Anti coagulating blood sample...Objective To study the alteration of peripheral lymphocyte subsets in severe acute respiratory syndrome (SARS) patients and to help improve the early diagnosis of the disease Methods Anti coagulating blood samples from 98 SARS patients in the acute phase, 56 normal healthy blood donors, and from patients infected by HIV, CMV and EBV were collected The T lymphocyte subsets were counted by flow cytometry using fluorescence labeled specific monoclonal antibodies Results A significant decrease was observed in all SARS patients in their peripheral CD4 + and CD8 + T lymphocyte absolute counts [256(104)×10 6/L and 256 (117)×10 6/L, respectively], which were also lower than those of the patients infected with HIV, CMV and EBV All patients infected with HIV, CMV and EBV had significantly higher CD8 + T lymphocyte counts in comparison with normal controls Conclusions Decrease of both CD4 + and CD8 + T lymphocytes of patients is related to onset of SARS T lymphocyte subset analysis would help improve the early diagnosis of the disease展开更多
基金Supported by the National Natural Science Foundation of China,No.82300857.
文摘BACKGROUND Patients with acute-on-chronic liver failure(ACLF)experience severe immune dysfunction.Liver transplantation(LT)significantly improves survival outcomes.However,the characteristics of peripheral blood lymphocyte subsets(PBLSs)in this patient population are not well defined,and the dynamics of immune reconstitution post-LT are insufficiently understood.AIM To characterize PBLSs in patients with ACLF prior to LT and to evaluate PBLS reconstitution after LT.METHODS Clinical data from patients undergoing LT in the Transplantation Center,The Third Xiangya Hospital from January 2022 to December 2023 were analyzed retrospectively.Our cohort comprised 44 patients with ACLF,16 patients with acute decompensation of cirrhosis,and 23 patients with compensated cirrhosis.Twenty healthy volunteers were included as controls.PBLSs were evaluated across all groups.The relationship between PBLSs and post-LT prognosis was assessed,and dynamic changes in PBLSs among patients with ACLF were analyzed at different time points.RESULTS Patients with ACLF exhibited a marked reduction in PBLSs compared with healthy volunteers.Natural killer(NK)cell counts were further reduced in patients with ACLF when compared with patients with compensated cirrhosis.PBLSs did not correlate with the etiology or severity of ACLF or with established liver failure scores.Following LT,a rapid restoration of NK cells and B cells was observed in patients with ACLF.However,the cluster of differentiation(CD)3+T cell and CD4+T cell counts decreased 14 days post-LT and subsequently returned to preoperative levels by day 21.CONCLUSION Patients with ACLF exhibited markedly reduced PBLSs,with decreased NK cells potentially linked to progression from compensated cirrhosis to liver failure.NK and B cell were rapidly restored after LT.
文摘BACKGROUND Advanced gastric cancer(AGC)remains a challenging malignancy with poor prognosis.The combination of oxaliplatin and trastuzumab has shown promising results in AGC treatment.This study aimed to investigate the effects of oxaliplatin and trastuzumab combination therapy on serum tumor markers and T lymphocyte subsets in patients with AGC and to explore their potential as predictive biomarkers for treatment response.AIM To investigate the impact of oxaliplatin and trastuzumab combination therapy on serum markers and T cell subsets in patients with AGC.METHODS This prospective study enrolled 60 patients with AGC.All patients received oxaliplatin(130 mg/m^(2),every 3 weeks)and trastuzumab(8 mg/kg loading dose,followed by 6 mg/kg every 3 weeks)for six cycles.Serum carcinoembryonic antigen(CEA),cancer antigen 19-9(CA19-9),and cancer antigen 72-4(CA72-4)were measured before and after treatment.T-lymphocyte subsets,including CD3+,CD4+,CD8+,and CD4+/CD8+ratios,were also evaluated.The clinical response was assessed using the Response Evaluation Criteria in Solid Tumors version 1.1.RESULTS After six cycles of treatment,the CEA,CA19-9,and CA72-4 serum levels significantly decreased compared to baseline levels(P<0.001).The percentages of CD3+and CD4+T lymphocytes increased significantly(P<0.05),whereas the percentage of CD8+T lymphocytes decreased(P<0.05).The CD4+/CD8+ratio also significantly increased after treatment(P<0.05).Patients with a higher decrease in serum tumor markers(≥50%reduction)and a higher increase in CD4+/CD8+ratio(≥1.5-fold)showed better clinical response rates(P<0.05).CONCLUSION Oxaliplatin and trastuzumab combination therapy effectively reduced serum tumor marker levels and modulated T lymphocyte subsets in patients with AGC.Combination therapy not only has a direct antitumor effect,but also enhances the immune response in patients with AGC.Serum tumor markers and T lymphocyte subsets may serve as potential predictive biomarkers for treatment response in patients with AGC receiving combination therapy.
文摘Objective:To study the effect of Helicobacter pylori infection on rheumatoid arthritis and T-lymphocyte subpopulations in patients with rheumatoid arthritis and to provide a new method for the treatment of rheumatoid arthritis by removing Helicobacter pylori from patients.Methods:60 patients with rheumatoid arthritis admitted to the hospital from May 2022 to May 2023 were selected for the study,and all patients underwent a 13-carbon urea breath test to detect gastric H.pylori and the test results showed that 20 cases were negative and 40 cases were positive.The 40 positive patients were divided into the treatment group(n=20)and non-treatment group(n=20)by random number table method and the treatment group was given anti-Helicobacter pylori treatment,and the non-treatment group was given maintenance rheumatoid basic treatment,comparing the anti-cyclic citrulline peptide(CCP),DS28 score,peripheral blood T-lymphocyte subsets(CD4^(+)T-lymphocytes,CD8^(+)T-lymphocytes,CD4^(+)/CD8^(+)ratio)before and after the treatment of patients by 13-carbon urea respiration test(pylori-negative group,20 patients)and those who were positive for the treatment of H pylori(pylori-positive group,40 patients).Besides,the correlation of peripheral blood T-lymphocyte subsets and disease activity between treatment and non-treatment groups in the pylori-positive group was identified together with the correlation of DS28 scores,TNF-αlevels,sedimentation and immunoglobulin,lymphocyte subsets in the pylori-positive treatment group and positive non-treatment group as well as the level of globulin,lymphocyte subsets,and peripheral blood lymphocytes before and after treatment.Results:Before treatment,CCP,DS28 score,CD8^(+)T lymphocyte level of the pylori-negative group were lower than that of the positive group,and CD4^(+)T lymphocyte and CD4^(+)/CD8^(+)ratio were higher than that of the positive group(P<0.05);after treatment,the indexes of the pylori-positive group improved,and there was no significant difference in the comparison of the indexes with those of the pylori-negative group(P>0.05);the positive treatment group had a DS28(3.19±1.02)points,positive non-treatment group DS28(5.36±1.85)points,non-treatment group DS28 score and CD4^(+)T lymphocytes,CD4^(+)/CD8^(+)negative correlation with CD8^(+)T lymphocytes showed a positive correlation(P<0.05);before the treatment,pylori-positive treatment group and non-treatment group DS28 scores,TNF-αlevels,peripheral blood T lymphocyte subpopulation levels were not significantly different(P>0.05);after treatment,DS28 score,TNF-αlevel,CD8^(+)T of the treatment group were lower than those of the non-treatment group,and CD4^(+)T lymphocytes and CD4^(+)/CD8^(+)ratio were higher than those of the non-treatment group(P<0.05).Conclusion:H.pylori affects the level of T lymphocyte subsets in patients with rheumatoid arthritis,and there is a certain correlation between the two.Removal of H.pylori can improve the level of T lymphocyte subsets,which is important for the treatment of patients with rheumatoid arthritis.
文摘Objective： To evaluate whether radiofrequency ablation （RFA） might have an influence on immune status in hepatocellular carcinoma （HCC） patients. Methods： We measured the T lymphocytes, B lymphocyte and NK cells, and determined the population of Thl, Th2, Tcl and Tc2 of peripheral blood samples taken from 26 HCC patients before and after RFA. Results： The proportion of Typel cells （Thl and Tcl） and NK cells were significantly increased after RFA, especially in patients of the following subgroups： male, age〉55 years, pathological grade Ⅰ-Ⅱ tumor, clinical stage Ⅰ-Ⅱ or Child-Pugh A and B. Conclusion： TypeⅠ cells and NK cells in HCC patients were increased in a short period after RFA.
文摘Objective: To study the expression of Fas and Bcl-2proteins on T lymphocyte subsets in the peripheralblood of relapsing patients with condyloma acuminatum(CA) and healthy controls. Methods: Flow cytometry (permeabization andstaining procedure with conjugated antibodies) wasused. Results: We observed that the expression of Fasprotein on CD4^+ T lymphocyte subset of CA patientswas significantly higher than that of healthy controls(P<0.01). Conclusions: Increased expression of Fas proteinon CD4^+ T lymphocyte subset may be a cause of de-creased percentage of CD4^+ T lymphocyte subset. Thisinduces the increased ratio of CD4^+/CD8^+.
文摘The present report evaluates the effects of formaldehyde (FA) exposure on peripheral lymphocytes by using heth genetic and immunological parameters. Twenty-three non-smoking students in the study had inhalation exposure to 0.508 ±0. 299 mg/m3 of FA for a Period of 8 weeks (3h × 3 times each week) during anatomy classes. As for composition of lymphocyte subsets after FA exposare,significant increase was found in the percentage of CD19(B cells), while sighficant decrease was observed in CD3(total T cells), CD4(T helper-inducer cells), and CD8(T cytotoxic-suppressior cells) with a P<0 .01. Increase in the ratio of T-helper-inducer cells to T-cytotoxic-suppressor cells (T4 / T8) was also observed with statistical sighcance after exposure (P < 0.001). In the meanwhile,no significant difference (P > 0 .05) was reported between lymphocyte prolifendion rate and sisterchromatid exchange (SCE) at the exposure level and duration. It is suggested that the lymphocyte subsets may be most susceptible to the effects of FA, though a single immunological endpoint is rarely related with pathophysiological interpretation.
基金supported by the National Science and Technology Major Projects(No.2011ZX09301-110)National Genetically Modified Organisms Breeding Major Projects(No.2012ZX08011-001)
文摘The present study was designed to characterize the blood chemistry, hematology, and lymphocyte subsets in pregnant rhesus monkeys and provide baseline parameters for future studies of reproductive and developmental toxicity and developmental immunotoxicity. Harem-mating was used in 96 female and 16 male rhesus monkeys. Pregnancy was confirmed on gestation day(GD)18 by ultrasound. The blood samples of rhesus monkeys were collected at various times(20 days before pregnancy and GD20, 100 and 150). The analyses of blood chemistry, hematology, and lymphocyte subsets were performed. Copmpared with 20 days before pregnancy, Significant decreases(P < 0.05) were observed in HCT and RBC on GD20, GD150 and in HGB on GD150, Significant increases in NEUT and decreases in LYMPH on GD20 were observed. Significant decreases in ALB from GD20 to GD150 were observed, significant decreases in TP was observed on GD100. Significant increases in mean GLU were observed on GD20 and GD150 during pregnancy. Significant decreases(P < 0.05) in CD20+ subsets on GD100, GD150 and CD4+/CD8+ ratio on GD150 were observed, The significant changes of MCV, MCHC, RDW-SD, MCV, MONO, ALT, AST, GLB, ALP, TBIL, DBIL, IBIL, GGT, CR-S, URIC, TC, TG and CK were observed during the pregnant period, but no biologic change were observed, There were no significant changes in MCH, RDW-CV, MPV, BUN, CD3+, CD4+ and CD8+ during pregnancy. These data provide a database for preclinical study in rhesus monkeys. Physiological anemia, hyperglycemia, and immune suppression may occur in pregnant rhesus monkey which is similar to that found in human, and it is essential to distinguish the physiological changes from the pharmacological effects in reproductive and developmental toxicity and developmental immunotoxicity studies of pharmaceuticals.
基金Supported by the Natural Science Foundation of Guangxi, No. 0135026
文摘AIM: To study the transformation of T lymphocyte subsets in children with Heliobacter pylori (H pylori) infection. METHODS: The H pylori infection status were determined by a combination of ELISA and Western blot (immunoblot) technique in 98 children and T lymphocyte subsets in peripheral blood were determined by flow cytometrical analysis.RESULTS: There were 75 children positive with H pylori infection and 23 negative in 98 children. Comparing the proportion of peripheral blood T lymphocytic subsets in children with H pylori infection and without H pylori infection, it was found that a higher proportion of CD4 T-cells in infected children (39.02±7.71 vs34.25±10.73,t = 2.246,P＜0.05) and higher value of CD4 to CD8 T-cells ratio (1.51±0.52 vs 1.25, t= 2.104,P＜0.05) were present, but there were not significant differences in CD3 T-cells and CD8 T-cells (73.11±10.02 vs69.49±17.08, 27.22±6.07vs 28.27±8.67, P＞0.05).CONCLUSION: Th1 cell-mediated immune responses may be induced by H pylori infection in children.
基金This study was supported by the Item of Special Scientific and Technological Action in Preventing and Treating SARS funded by State Administration of TCM ( No. 2003AA20810)
文摘Objective: To observe the clinical effect of integrative Chinese a nd western medicine (ICWM) in treatment of patients with severe acute respirator y syndrome (SARS) and its influence on their T lymphocyte subsets.Methods: Fifty one patients with SARS of severe type were obser ved with synchronous non randomized controlled method. They were divided into the ICWM group (29 patients) and the western medicine (WM) group (22 patients). Western medical treatment was applied to both groups, but to the ICWM group, Ch inese medicine was given additionally. The therapeutic course was 2-3 weeks for both groups. Clinical effect and changes of T lymphocyte subsets (CD4 +) aft er treatment were observed.Results: In the ICWM group, 26 patients (89.66%) were cured and 3 (10.34%) died, while in the WM group, 12 (54.55%) cur ed and 10 (45.45%) died, thus comparison of the cure rate between the two groups showing significant difference ( P <0.01). The score of clinical symptoms in the ICWM group was decreased from 7.14±5.20 scores before treatment to 1.82±3. 75 scores after treatment, while in the WM group, it lowered from 7.36±3.84 sco res before treatment to 5.17±4.17 scores after treatment, significant diffe rence shown in the comparison of the values between the two groups after treatme nt (P<0.01). Immunological function test showed that CD4 + T lymphocyte in the ICWM group rose from 361±278 cells/mm 3 before treatment to 630±454 c ells/mm 3 after treatment, showing significant difference( P <0.01 );bu t in the WM group, it merely rose from 288±186 cells/mm 3 to 376±285 cells/mm 3 in the corresponding period (P>0.05). Conclusion: ICWM could improve the clinical symptoms of SARS pa tients markedly, enhance their T lymphocyte immune function, and reduce their mortality.
文摘T lymphocyte subsets in the liver were detected by Avidin-Biotin Complex (ABC) assay in 22 patients with advanced schistosomiasis (AS) and 5 cases of AS accompanied with hepatitis B. T lymphocytes in the liver of AS patients were distributed in the peripheral layer of egg granuloma or the area near eggs in non-granuloma. No infiltrative T lymphocytes were observed in area with extensive fibrosis. There was infiltration of many T cells in the portal tract, piecemeal and focal necro- sis area as well as in hepatic sinus in AS patients accompanied with hepatitis B. CD8+ T cells (sup pressor/cytotoxic T cells, Ts/Tc) in the liver were predominant in the two groups. In AS patients, marked hepatic fibrosis, a small number of T cell infiltration and slight hepatocellular degeneration and necrosis were observed. However, obvious hepatocellular degeneration and necrosis were seen in AS patients accompanied with hepatitis B, and 3 cases of them developed active liver cirrhosis. The results indicated immune response was weak in the liver in AS patients and T. cells might be predominant in the subset of CDS+ T lymphocytes. Cellular immune response was relatively strong in AS patients accompanied with hepatitis B and the infiltrative CD8+ T lymphocytes might be mainly Tc cells.
基金ThisresearchwassupportedbytheNationalNaturalScienceFoundationofChina(No.39770667),theScience&TechnologyDevelopmentFoundationofShaanxiProvince(No.2001SM82)and china and belgium cooperated study
文摘Objective To study the humoral immunity status and distribution pattern of lymphocyte subgroups of peripheral blood mononuclear cell (PBMC) in patients with Kashin-Beck Disease (KBD), and their relationship with erythrocyte selenium. Methods 23 X-ray diagnosed patients, 22 age- and sex- matched healthy children in KBD affected area (KAA), and 25 in KBD non-affected area (KNAA) were randomly selected. Immunohistochemistry with monoclonal antibodies anti-CD4, anti-CD8, anti-CD20 was conducted to analyze the lymphocyte subsets. Serum IgM, IgA, IgG, Complement C3 and C4 were assayed using rate nephelometry (Array 360 System, USA). The contents of erythrocyte selenium was determined by 2,3-diaminonaphthalene fluorescence assay. Results CD4+ and CD8+ cells percentage in PBMCs and serum IgA were significantly lower in KAA than those in KNAA(P< 0.05). CD20+ percentage in KAA displayed a decreasing trend compared to KNAA, although not statistically significantly. No statistical differences were found in CD4/CD8 ratio, serum IgG, IgM, C3 and C4 levels. Erythrocyte selenium level in KAA still showed a pronounced decrease compared to that in KNAA. Correlation analysis showed that erythrocyte selenium contents had a strong association with the CD4 cell percentage (r= 0.625, P< 0.05), as well as serum IgA (r= 0.462, P< 0.05). In addition, a moderate correlation between the serum IgA and CD4+ percentage (r= 0.130, P> 0.05) was found. Conclusion These results suggested that children in KAA had a comparably low cellular immunity level and their humoral immunity status was also in a state of moderate immune suppression. Of this immune disorder in Kashin-Beck disease patients, selenium deficiency probably played a critical role via affecting the distribution pattern of peripheral blood lymphocyte. Selenium-deficiency and immune impairment maybe both have something to do with the cause-effect chain of KBD.
基金the Scientific and Technological Development Foundation of Baotou Medical Science in Inner Mongolia [(2001) No.198]
文摘Objective To investigate changes in T lymphocyte subsets and NK cells in patients with simple Graves’ disease(GD)and Graves’ disease combined with type 2 diabetes mellitus(GD/T2DM).Methods Fifteen cases of GD/T2DM were selected from our hospital from November 2001 to November 2004.Before and after therapy thyroid function,thyroglobulin antibody(TGA),thyroid microsomal antibody(TMA)and blood glucose level were measured,and T lymphocyte subsets(CD3,CD4,CD8,CD4/CD8)and NK cells(CD56)were measured by immunofluorescence double labeling monoclonal antibody and flow cytometry,respectively.At the same time,comparison was made with simple GD(15 cases),T2DM(15 cases)and healthy control(20 cases).Results Before therapy,CD4/CD8,CD4 and NK cells in GD/T2DM were less than normal,and there was no significant difference in comparison with simple GD(P<0.05).In T2DM group,only CD4/CD8 and CD4 were less than those of healthy controls(P<0.05).When thyroid function recovered after 1 to 3 months of methimazole treatment in both GD/T2DM and simple GD groups,various indexes recovered,which were more obvious in simple GD.Conclusion Immune hypofunction of GD may be the key to the immune abnormality of GD/T2DM,which is more significant than that of simple GD or T2DM.The recovery of thyroid function and immune abnormality is not consistent,and the recovery of GD is more significant than that of GD/T2DM.
文摘Objective To study the changes of lymphocyte subsets and regulatory T cells in peripheral blood of patients with acute leukemia(AL) and its clinical significance.Methods The different levels of peripheral blood lymphocyte subsets and regulatory T cells of 60 AL patients and 40 normal controls were detected with flow cytometry.Results Compared with the normal controls,the percentages of CD3+ T cells,CD4+ T cells,CD16+CD56+ NK cells and the ratio of CD4+ /CD8+ obviously decreased in newly diagnosed AL group(P <0.05),while their percentages of CD8+ T cells and CD19+ B cells significantly increased(P <0.01).The percentage of CD4+ T cells and the ratio of CD4+ /CD8+ in acute lymphoblastic leukemia(ALL) group were much lower than those in acute myelogenous leukemia(AML) group(P <0.01).Compared with these in control group,the proportions of CD4+ CD25high Treg cells and CD4+ CD25+ T cells in newly diagnosed AL group were significantly increased(P <0.01).Conclusion Cellular immune function is significantly abnormal in patients with AL.Compared with AML patients,ALL patients had poorer cellular immune function.The increased CD4 + CD25high Treg cells might be one of the important reasons of immunosuppression in AL.Detection of lymphocyte subsets and regulatory T cells is of clinical value on the evaluation of therapeutic effect and prognosis in AL patients.
文摘In the study,we utilized the OKT monoclonal antihuman T Iymphocyte antibodies by indirect immunoenzyme staining method to determinc T lymphocyte subsets in the peripheral blood of 72 cancer patients treated by local radiotherapy.The haematological assays were performed immediately Pre-and Postradiotherapy.In the postoperative radiotherapy group(PR group) of 40 breast cancer patients treated by prophylactic postoperative radiotherapy,after radiotherapy blood platelet,white blood cell and lymphocyte count decreased significantly.CD2,CD4 and CD8 cell counts all very significantly decreased.Proportion of CD2 and CD2 had no apparent change but proportion of CD8 increased significantly.The group appeared apparent hypoimmunity.While the complete response group(CR group) of 32 cancer paticnts treateil with local radiothcrapy,after radiotherapy blood Platelet,white blood cell and lymphocyte count had no significant decrease.CD2,CD4 and CD8 cell count had no significant decrease.Proportion of CD2,CD4 and CD8 had no apparent change.The CR group had no apparent hypoimmunity.Comparing decrease rate of immunologic parameters in these two groups,decrease rate of white blood cell,lympheeyte and T lymphocyte subsets count in CR group significantly were slightened rather than pR group.This study proved that effect of radiation-damaging tumor cell enhance antigenicity of the tumor and stimulate host cell immunity including a type of T-lymphogenesis.Induced hypoimmunity by postoperative radiotherapy should be avoided in this point of view.
文摘Objective To observe the variations of the cellular immunological function in patients with primary hepatic carcinoma both pre-TACE(transcatheter arterial chemoembolization,TACE).Methods T lymphocyte subset CD4,CD8 and CD4/CD7 ratio in 45 patients with primary hepatic carcinoma both pre-TACE and post-TACE were measured by flow Cytometer,and compared with the result of T lymphocyte subset in 19 healthy people as normal control samples.Results The CD4 and CD4/CD8 ratio in patients with primary hepatic carcinoma were significantly lower than those in normal control(P<0.05),while CD8 higher(P<0.05);The CD4 and CD4/CD8 ratio in patients with primary hepatic carcinoma were much more lower after TACE than those before TACE(P<0.05),while CD8 was higher but had no significant difference(P>0.05).Conclusion The cellular immunological function in patients with primary hepatic carcinoma decreased and is much more lower after TACE.
基金supported by the New Technology and New Project of Jinxiang Hospital Affiliated to Jining Medical University(No.JY2023026).
文摘Background:Colorectal cancer(CRC)is a common gastrointestinal malignancy.The T lymphocyte subsets are important in the develop-ment,invasion and metastasis of tumors,including CRC.Nevertheless,limited research has explored the relationship between T cell subpopu-lations and the clinical characteristics of CRC.This study compared the T lymphocyte subsets in patients with CRC and healthy individuals,and assessed the relationship between these values and clinical characteristics.Methods:Peripheral blood was collected from 100 patients with CRC and 54 healthy individuals.The numbers of CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocytes,NK cells,and the CD4^(+)T/CD8^(+)T ratio in peripheral blood were measured using flow cytometry,and were compared between CRC patients and healthy individuals.Spearman's correlation analysis was performed to investigate the relationship between the T lymphocyte subsets in patients diagnosed with CRC and the levels of carcinoembryonic antigen(CEA)and thymidine kinase 1(TK1).Receiver operating characteristic(ROC)curves were utilized to evaluate the potential utility of the T lymphocyte counts in predicting lymph node metastasis,vas-cular infiltration,and high Ki-67 expression.Results:The CRC patients had lower counts of CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocytes compared to the healthy population(P<0.05).However,no significant differences were observed in the CD4^(+)/CD8^(+)ratio or NK cells(P>0.05).Notably,the CD3^(+)T,CD4^(+)T,and CD8^(+)T lym-phocyte counts were higher in patients with stageⅠ-Ⅱdisease,no lymph node metastasis,no vascular invasion,and low Ki-67 expression than in those with stageⅢ,lymph node metastasis,vascular invasion,and high Ki-67 expression(P<0.05).There was a negative association be-tween the CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocyte counts and CEA and TK1 levels in patients with CRC.The ROC curves demonstrated that CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocyte counts had significant predictive value for lymph node metastasis,vascular infiltration,and high Ki-67 expression.Conclusions:The peripheral blood CD3^(+)T,CD4^(+)T,and CD8^(+)T lymphocyte counts are related to the clinical traits of patients with CRC and can predict the prognosis of the disease.
文摘Objective To explore the association between perceived mental stress(MS),lymphocyte subset variations,and coronary lesion severity in patients with coronary artery disease(CAD).Methods Patients with CAD were enrolled in this study from September 2023 to May 2024.Perceived Stress Scale-14(PSS-14)was used to evaluate MS during the last 1 month.Lymphocyte subsets were analyzed,including the percentage and absolute counts of CD3^(+),CD3^(+)CD4^(+),CD3^(+)CD8^(+),CD3^(-)CD19^(+),CD3^(-)CD56^(+)16^(+),and the Th/Ts ratio.Statistical analysis was conducted using SPSS 24.0.Results This study recruited patients with 323 CAD,with an average age of 61(56,68)years,including 203 males and 120 females.According to the PSS-14,a score of 14-42 and 43-70 were categorized as normal and increased MS,respectively.Patients with CAD with increased MS had significantly higher Gensini scores than those with normal MS[37(19,64)vs.28(12,50),Z=-2.19,P=0.029].Male CAD patients with increased MS exhibited significantly higher Gensini scores[39(20,58)vs.26(12,45),Z=-2.37,P=0.018],levels of CD3^(+)CD8^(+)%[28.3%(23.6%,36.6%)vs.25.9%(21.0%,32.4%),Z=-2.05,P=0.041],and CD3^(+)CD8^(+)absolute value[485(346,675)vs.396(309,510)cells/μl,Z=-2.55,P=0.011]than those with normal MS.In male patients with CAD,a positive correlation was observed between Gensini scores(correlation coefficient:O.181,P=0.011),PSS-14 scores,and CD3^(+)CD8^(+)absolute value(correlation coefficient:0.162,P=0.038).Conclusion This study reveals a positive correlation between MS and coronary stenosis severity,with notable sex differences.In male patients with CAD,higher levels of MS are associated withmore severe coronarystenosis.The potential underlying mechanism may involve the regulation of lymphocyte subsets.
文摘Objective:To explore the difference of lymphocyte subsets in peripheral blood(PB)between aplastic anemia(AA)and hypoplastic myelodysplastic syndrome(hypo-MDS)patients,meanwhile to compare the clinical parameters obtained from PB and bone marrow(BM).Methods:The lymphocyte subsets in hypo-MDS(n=25)and.AA(n=33)patients were investigated by flow cytometry.Meanwhile,the differences in PB cell counts,biochemical indicators,BM cell counts and abnormal chromosomes between the two groups were analyzed.Results:The percentage of CD8^(+)T cells in AA group was significantly higher than that in hypo-MDS group(P=0.001),while the percentage of CD4^(+)T cells and the CD4^(+)/CD8^(+)ratio in AA group were obviously lower than those in hypo-MDS group(P=0.015 and 0.001,respectively).Furthermore,the proportion of CD4^(+)and CD8^(+)activated T(TA)cells,and memory Tregs in AA group was distinctly lower than those in hypo-MDS group(P=0.043,0.015 and 0.024,respectively).Nevertheless,the percentage of CD8^(+)naive T(TN)cells in AA patients was remarkably higher(P=0.044).And hypo-MDS patients had declined lymphocyte counts(P=0.025),increased levels of total bilirubin(TBil),lactate dehydrogenase(LDH),vitamin B12 and proportion of BM blasts than AA patients(P=0.019,0.023,0.027 and.0.045,respectively).Conclusion:In this study it was confirmed that the percentages of CD4^(+)and CD8^(+)TA cells,memory Tregs and CD8^(+)TN cells were significantly different between AA and hypo-MDS patients,which provide an essential basis for the identification of these two diseases.
基金supported by the National Natural Science Foundation of China(Nos.81600151,81302039 and 82060040).
文摘Objective:To retrospectively analyze the expression and significance ofγδT cells and lymphocyte subsets in peripheral blood on patients with multiple myeloma(MM).Methods:Fifty-five patients with multiple myeloma admitted to Yangpu Hospital Affiliated to Tongji University from January 2022 to August 2023 were selected as the disease group,and were categorized into stage I group,stage II group and stage III group according to the International Staging System(ISS)of multiple myeloma.All included patients were consecutive visits.Another 30 cases of healthy people with physical examination were selected as the control group.Flow cytometry was used to detect theγδT cells and lymphocyte subsets in the peripheral blood of the subjects.After clinical indicators of patients and healthy controls were collected,the statistical analysis was conducted.Results:Compared with the control group,the percentage ofγδT cells and CD8^(+)T cells in the disease group were higher,while,the absolute numbers of total peripheral blood lymphocytes(LYMT)and CD19^(+)B cells,percentage of CD19^(+)B cells,CD3^(+)T cells,CD4^(+)T cells were lower(P<0.05).The percentage ofγδT cells(P<0.001),the percentage of CD19^(+)B cells(P=0.003),the absolute number of CD3^(+)T cells(P=0.010),the absolute number of CD8^(+)T cells(P=0.002)were the significant influential factors of MM.γδT cells(P=0.004),neutrophils(P<0.001),neutrophil to lymphocyte ratio(P=0.003),and white blood cell count(P<0.001)were statistically different in different stages.ROC curve suggested that the area under the curve of the percentage ofγδT cells in predicting the MM were 0.973(P<0.001)which had certain diagnostic value.Conclusions:γδT cells and lymphocyte subsets(CD8^(+)T cells,CD19^(+)B cells,CD3^(+)T cells,etc.)in patients with newly diagnosis of MM can reflect the immune function of the patient’s organism,which is a key factor of MM.γδT cells influence the staging of MM patients,and also have certain diagnostic value.
文摘Objective To study the alteration of peripheral lymphocyte subsets in severe acute respiratory syndrome (SARS) patients and to help improve the early diagnosis of the disease Methods Anti coagulating blood samples from 98 SARS patients in the acute phase, 56 normal healthy blood donors, and from patients infected by HIV, CMV and EBV were collected The T lymphocyte subsets were counted by flow cytometry using fluorescence labeled specific monoclonal antibodies Results A significant decrease was observed in all SARS patients in their peripheral CD4 + and CD8 + T lymphocyte absolute counts [256(104)×10 6/L and 256 (117)×10 6/L, respectively], which were also lower than those of the patients infected with HIV, CMV and EBV All patients infected with HIV, CMV and EBV had significantly higher CD8 + T lymphocyte counts in comparison with normal controls Conclusions Decrease of both CD4 + and CD8 + T lymphocytes of patients is related to onset of SARS T lymphocyte subset analysis would help improve the early diagnosis of the disease
