AIM： To investigate the relationship between insulin resistance （IR）/β-cell dysfunction and diabetic retinopathy （DR） in Chinese patients with type 2 diabetes mellitus （T2DM）, and to explore further whether th...AIM： To investigate the relationship between insulin resistance （IR）/β-cell dysfunction and diabetic retinopathy （DR） in Chinese patients with type 2 diabetes mellitus （T2DM）, and to explore further whether there were differences in the relationship among diabetic patients with higher and lower body mass index （BMI）. METHODS： Cross-sectional study. A total of 1466 subjects with T2DM were recruited in a local Desheng Community of urban Beijing from November 2009 to June 2012 for the cohort of Beijing Desheng Diabetic Eye Study. Standardized evaluation was carried out for each participant, including questionnaire, ocular and anthropometric examinations, and laboratory tests. Seven fields 30° color fundus photographs were used for DR grading according to the Early Treatment Diabetic Retinopathy Study protocols. Homeostatis Model Assessment （HOMA） method was employed for IR and β-cell function assessment. RESULTS： After excluding those participants who were treated with insulin （n=352） or had missing data of fasting insulin （n=96）, and further excluding those with poor quality of retinal photographs （n=10）, a total of 1008 subjects were included for the final analysis, 406 （40.3%） were men and 602 （59.7%） were women, age ranging fiom 34 to 86 （64.87±8.28）y. Any DR （levels 14 and above） was present in 278 （27.6%） subjects. After adjusting for possible covariates, the presence of any DR did not correlate with HOMA IR [odds ratio （OR） 1.51, 95% confidence interval （Cl） 0.87-2.61, P=0.14] or HOMA β-cell （OR 0.71, 95%CI 0.40-1.26, P=0.25）. After stratification by BMI, the presence of any DR was associated positively with HOMA IR （OR 2.46, 95%CI： 1.18-5.12, P=0.016）, and negatively with HOMA β-cell （OR 0.40, 95%CI： 0.19-0.87, P=0.021） in the group of patients with higher BMI （225 kg/m2）. In the group of patients with lower BMI （〈25 kg/m2）, the presence of any DR was not associated with HOMA IR （OR 1.00, 95%C1： 0.43-2.33, P=I.00） or HOMA β-cell （OR 1.41, 95%CI： 0.60-3.32, P=0.43）. CONCLUSION： The data suggest that higher IR and lower 13-cell function are associated with the presence of DR in the subgroup of diabetic patients with higher BMI. However, this association is not statistically significant in diabetic patients with lower BMI.展开更多
Insulin has been shown to possess significant anti-apoptotic effect in myocardial ischemia/reperfusion (MI/R). However, the contribution by this protection of insulin to
Background: There are data that suggest adiposity is associated with diminished cognitive functioning in adults and youth, independent of related co-morbidities. Little is known about the pathophysiological mechanisms...Background: There are data that suggest adiposity is associated with diminished cognitive functioning in adults and youth, independent of related co-morbidities. Little is known about the pathophysiological mechanisms associated with cognitive function in obese youth. The objective of the present study was to assess the associations among cognitive functioning and insulin regulation in a sample of obese youth. Methods: The sample consisted of 30 obese, non-diabetic youth (BMI > 95th percentile) ages 6-16 years (mean age = 12.60 years) referred to an outpatient pediatric endocrinology clinic. Youth were administered the Wechsler Abbreviated Scale of Intelligence (WASI) and Wide Range Assessment of Memory and Learning (WRAML-2). Results: Verbal memory, attention/concentration, and intelligence scores were similar across obese youth with elevated insulin levels and normal insulin levels. Obese youth with elevated insulin levels had lower scores in visual memory, with a medium effect (effect size = 0.51). Fasting insulin levels were not associated with any of the four cognitive domains in the multiple linear regression analysis (P > 0.05). Conclusions: These data provide preliminary evidence that visual memory may be impacted in obese youth with insulin resistance. Longitudinal studies examining insulin regulation, cognitive functioning, and weight status over time are needed.展开更多
β-cell dysfunction and decreased insulin sensitivity are believed to be two chief mechanisms that participate in deterioration of glycemic control in Type 2 diabetes. Meformin is widely accepted as the first-line ora...β-cell dysfunction and decreased insulin sensitivity are believed to be two chief mechanisms that participate in deterioration of glycemic control in Type 2 diabetes. Meformin is widely accepted as the first-line oral agent in the treatment of Type 2 diabetes. However, the relative contributions of improved β-cell function and increased insulin sensitivity to reduction in hemoglobin A1c (HbA1c) are unclear in newly diagnosed Type 2 diabetic patients treated with metformin. We investigated β-cell function and insulin sensitivity in relation to reduction in HbA1c in 20 newly diagnosed Type 2 diabetic patients (17 men and 3 women, mean age 49.1 ± 10.1 years, mean body mass index 26.4 ± 5.2 kg/m2) treated with metformin for 16 weeks. We used homeostasis model assessment (HOMA) 2%B and HOMA2%S as estimates of β-cell function and insulin sensitivity, respectively. Median HOMA2%B and HOMA2%S significantly increased from 38.8 to 68.8 (p p = 0.004), respectively. In univariate regression analysis, reduction in HbA1c was highly correlated with change in HOMA2%B (r = -0.866, p < 0.001), but not with that in HOMA2%S (r = -0.264, p = 0.260). Furthermore, multivariate regression analysis with reduction in HbA1c as a dependent variable showed that increase in HOMA2%B but not that in HOMA2%S was a significant dependent variable (β = -0.847, p β-cell function rather than increased insulin sensitivity is associated with reduction in HbA1c. These results suggest that metformin reduces HbA1c chiefly through improved β-cell function rather than increased insulin sensitivity in patients with newly diagnosed Type 2 diabetes.展开更多
Insulin is a peptide hormone secreted by pancreaticβ-cells,which plays a key role in regulating glucose metabolism and is the only hormone in the body capable of lowering blood glucose level.The development of insuli...Insulin is a peptide hormone secreted by pancreaticβ-cells,which plays a key role in regulating glucose metabolism and is the only hormone in the body capable of lowering blood glucose level.The development of insulin preparations has undergone nearly 100 years of history,from early animal insulin extraction to modern synthetic insulin and insulin analogs,which have greatly advanced the treatment of diabetes.The insulin receptor has a wide distribution in the body,and its activation leads to intracellular signaling mainly through two pathways,PI3K/Akt and Ras/MAPK.Clinically,insulin is crucial in the treatment and management of diabetes and its complications,especially in the cases where oral medications fail to control blood glucose.The role of insulin is not limited to the regulation of blood glucose but has a wide range of functions throughout the body,such as regulation of mitochondrial function and metabolism,the promotion of protein synthesis,adipogenesis,and cellular proliferation.However,insulin overdose may lead to severe hypoglycemia,which,if left untreated,poses the risk of irreversible neurological damage or even fatality.In this paper,we review the history of the development of insulin preparations,the molecular structure of insulin,the biological processes initiated by insulin and insulin deficiency/resistance.The overview of side effects from insulin is also included in this review.We assume that future research could focus on refining insulin analogs for greater therapeutic precision,minimizing side effects,and extending benefits beyond glycemic control.Exploring insulin’s additional effects may unlock potential applications in treating multiple diseases.展开更多
Increased circulating branched-chain amino acids(BCAAs)have been involved in the pathogenesis of obesity and insulin resistance.However,evidence relating berberine(BBR),gut microbiota,BCAAs,and insulin resis⁃tance is ...Increased circulating branched-chain amino acids(BCAAs)have been involved in the pathogenesis of obesity and insulin resistance.However,evidence relating berberine(BBR),gut microbiota,BCAAs,and insulin resis⁃tance is limited.Here,we showed that BBR could effectively rectify steatohepatitis and glucose intolerance in high-fat diet(HFD)-fed mice.BBR reorganized gut microbiota populations under both the normal chow diet(NCD)and HFD.Particu⁃larly,BBR noticeably decreased the relative abundance of BCAA-producing bacteria,including order Clostridiales;fami⁃lies Streptococcaceae,Clostridiaceae,and Prevotellaceae;and genera Streptococcus and Prevotella.Compared with the HFD group,predictive metagenomics indicated a reduction in the proportion of gut microbiota genes involved in BCAA biosynthesis but the enrichment genes for BCAA degradation and transport by BBR treatment.Accordingly,the elevated serum BCAAs of HFD group were significantly decreased by BBR.Furthermore,the Western blotting results implied that BBR could promote the BCAA catabolism in the liver and epididymal white adipose tissues of HFD-fed mice by acti⁃vation of the multienzyme branched-chain α-ketoacid dehydrogenase complex,whereas by inhibition of the phosphoryla⁃tion state of BCKDHA(E1α subunit)and branched-chain α-ketoacid dehydrogenase kinase.The ex vivo assay further confirmed that BBR could increase BCAA catabolism in both AML12 hepatocytes and 3T3-L1 adipocytes.Finally,data from healthy subjects and diabetics confirmed that BBR could improve glycemic control and modulate circulating BCAAs.Besides,functional microbiomics integrated high-throughput microbial genomics,metabolomics and molecular biotechnology has also been successfully applied to reveal the anti-obesity mechanism of hydroxysafflor yellow A.展开更多
Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due t...Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due to their biological properties, may be used as complementary treatment for type 2 diabetes mellitus. In this review, we have highlighted various functional foods as missing part of medical nutrition therapy in diabetic patients. Several in vitro, animal models and some human studies, have demonstrated that functional foods and nutraceuticals may improve postprandial hyperglycemia and adipose tissue metabolism modulatecarbohydrate and lipid metabolism. Functional foods may also improve dyslipidemia and insulin resistance, and attenuate oxidative stress and inflammatory processes and subsequently could prevent the development of long-term diabetes complications including cardiovascular disease, neuropathy, nephropathy and retinopathy. In conclusion available data indicate that a functional foods-based diet may be a novel and comprehensive dietary approach for management of type 2 diabetes.展开更多
AIM: To investigate whether the reduction of stem cell factor (SCF) is mediated by decreased endogenous insulin-like growth factor (IGF)-1 in diabetic rat colon smooth muscle. METHODS: Sixteen Sprague-Dawley rats were...AIM: To investigate whether the reduction of stem cell factor (SCF) is mediated by decreased endogenous insulin-like growth factor (IGF)-1 in diabetic rat colon smooth muscle. METHODS: Sixteen Sprague-Dawley rats were randomly divided into two groups: control group and streptozotocin-induced diabetic group. After 8 wk of streptozotocin administration, colonic motility function and contractility of circular muscle strips were measured. The expression of endogenous IGF-1 and SCF was tested in colonic tissues. Colonic smooth muscle cells were cultured from normal adult rats. IGF-1 siRNA transfection was used to investigate whether SCF expression was affected by endogenous IGF-1 expression in smooth muscle cells, and IGF-1 induced SCF expression effects were studied. The effect of high glucose on the expression of endogenous IGF-1 and SCF was also investigated. RESULTS: Diabetic rats showed prolonged colonic transit time (252 ± 16 min vs 168 ± 9 min, P < 0.01) and weakness of circular muscle contraction (0.81 ± 0.09 g vs 2.48 ± 0.23 g, P < 0.01) compared with the control group. Endogenous IGF-1 and SCF protein expression was significantly reduced in the diabetic colonic muscle tissues. IGF-1 and SCF mRNA expression also showed a paralleled reduction in diabetic rats. In the IGF-1 siRNA transfected smooth muscle cells, SCF mRNA and protein expression was significantly decreased. IGF-1 could induce SCF expression in a concentration and time-dependent manner, mainly through the extracellular-signal-regulated kinase 1/2 signal pathway. High glucose inhibited endogenous IGF-1 and SCF expression and the addition of IGF-1 to the medium reversed the SCF expression. CONCLUSION: Myopathy may resolve in colonic motility dysfunction in diabetic rats. Deficiency of endogenous IGF-1 in colonic smooth muscle cells leads to reduction of SCF expression.展开更多
Objective decline of resistance whether H Type 2 diabetes has been recently recognized as an important risk factor for cognitive patients with Alzheimer＇s disease （AD）. But the roles of hyperinsulinemia （HI） and...Objective decline of resistance whether H Type 2 diabetes has been recently recognized as an important risk factor for cognitive patients with Alzheimer＇s disease （AD）. But the roles of hyperinsulinemia （HI） and insulin （IR） in the development of AD are still controversial. This study was designed to evaluate or IR influenced the cognitive functions of older cohort. Methods The cognitive functions of 328 consecutive elderly patients were evaluated with a battery of cognitive rating scales. Their fasting blood glucose （FBG） and fasting insulin （FINS） were analyzed and IR was calculated with modified-Homa. The cognitive scores in different groups and the correlation of cognitive functions with HI or IR were analyzed. Results In our study, there were 180 participants with HI and 148 without HI, and 192 with iR and 136 without IR. The participants with HI showed worse cognitive functions than those without HI in MMSE, MOCA, CDR, orientation, delayed memory, and attention/calculation domains. Similarly, the elderly with IR had lower cognitive scores than those without IR in MMSE, MOCA, CDR, GDS, orientation, delayed memory, and attention/calculation domains. The insulin levels and Homa IR had negative correlation with the scores of MMSE and delayed memory, not only in the model I adjusted for FBG and diabetes history, but also in the model 2 adjusted for all nine demographic characteristics. Conclusion HI and IR are important risk factors for cognitive decline of the elderly, especially for the dysfunctions in delayed memory domains.展开更多
Objective To investigate therelationships between serum concentration of insulin -like growth factor - I (IGF-I) and left ventricular function as well as coronary collateral circulation in patients with coronary arter...Objective To investigate therelationships between serum concentration of insulin -like growth factor - I (IGF-I) and left ventricular function as well as coronary collateral circulation in patients with coronary artery disease (CAD) . Methods In 41 patients with CAD and 15 control subjects without CAD, the concentrations of serum IGF - I were measured using radioimmunoassay. The relationships between the concentration of serum IGF - I and Leaman coronary artery score, Rentrop grade of coronary collateral circulation, left ventricular ejection fraction (LVEF) as well as left ventricular wall motion Cortina score were assessed. Results 1. There was no significant difference in the mean level of serum IGF -I between the CAD group and the control group (107. 92±44.74 ng/ml vs 113.05 ±33. 65 ng/ml, P> 0. 05), but the IGF - I concentrations in the subgroup with collateral circulation were significantly greater than that in the control group (147. 33 ±29. 92 ng/ml vs 113. 05±33. 65 ng/ml, P < 0. 01) or in the subgroup without collateral circulation (147. 33 ±29. 92 ng/ml vs 80. 01±29. 75 ng/ml , P < 0. 01). 2. The serum concentration of IGF -I had no significant correlation to the Leaman coronary artery score. 3. The serum level of IGF -I had significantly positive correlation to both LVEF ( r = 0. 45, P < 0. 001) and the Rentrop grade of coronary collateral circulation ( r = 0. 74, P < 0. 001), and was negatively related to the left ventricular wall motion Cortina score (r = -0. 53, P < 0. 001). 4. The Leaman coronary artery score had no significant correlation to the Rentrop grade of coronary collateral circulation. 5. The Leaman coronary artery score was related to neither the LVEF nor the Cortina score in the whole CAD group. In the subgroup without coronary collateral circulation, however, the Leaman score had significantly negative correlation to LVEF ( r = - 0. 46, P < 0. 05) and positive correlation to the Cortina score (r = 0. 47, P < 0. 05) . Conclusions The serum concentration of IGF -I was associated with both left ventricular function and coronary collateral circulation in patients with CAD. IGF -I may play a role in promoting coronary collateral circulation and in protecting left ventricular function in patients with coronary artery disease.展开更多
AIM: To investigate the relationship of iron indices with diabetes mellitus(DM) in those without hemochromatosis.METHODS: This cross-sectional study examined data collected during the Third National Health and Nutriti...AIM: To investigate the relationship of iron indices with diabetes mellitus(DM) in those without hemochromatosis.METHODS: This cross-sectional study examined data collected during the Third National Health and Nutrition Examination Survey(NHANES III). Only those who fasted properly and were not anemic with transferrin saturation < 45% were included(n = 6849). Insulin sensitivity and beta cell function were calculated from fasting glucose and insulin concentrations. Indices of iron metabolism were examined in the presence or absence of DM. We examined the relationship of insulin sensitivity and beta cell function with serum ferritin concentration. The influence of C-reactive protein and liver enzymes was also investigated.RESULTS: Serum ferritin concentration was significantly higher in diabetic subjects(P = 0.0001 to< 0.000001). The difference remained significant after adjustment for age, body mass index, alcohol consumption, and mineral/iron supplement(P = 0.03 to< 0.000001). In those who did not take insulin, serum ferritin concentration was negatively associated with insulin sensitivity(P = 0.05 to 0.00001), but not with beta cell function. The alanine aminotransferase was correlated with serum ferritin concentration(P = 0.02 to< 0.000001) but not with insulin sensitivity, suggesting the role of the liver in iron-associated insulin resistance.CONCLUSION: As most of diabetes is type 2 diabetes and insulin resistance is a cardinal feature of type 2diabetes, disordered iron metabolism could play a role in the pathogenesis of insulin resistance and type 2diabetes through its effect on liver function.展开更多
As populations age, prevalence of Alzheimer＇s disease（AD） is rising. Over 100 years of research has provided valuable insights into the pathophysiology of the disease, for which age is the principal risk factor. Ho...As populations age, prevalence of Alzheimer＇s disease（AD） is rising. Over 100 years of research has provided valuable insights into the pathophysiology of the disease, for which age is the principal risk factor. However, in recent years, a multitude of clinical trial failures has led to pharmaceutical corporations becoming more and more unwilling to support drug development in AD. It is possible that dependence on the amyloid cascade hypothesis as a guide for preclinical research and drug discovery is part of the problem. Accumulating evidence suggests that amyloid plaques and tau tangles are evident in non-demented individuals and that reducing or clearing these lesions does not always result in clinical improvement. Normal aging is associated with pathologies and cognitive decline that are similar to those observed in AD, making differentiation of AD-related cognitive decline and neuropathology challenging. In this mini-review, we discuss the difficulties with discerning normal, age-related cognitive decline with that related to AD. We also discuss some neuropathological features of AD and aging, including amyloid and tau pathology, synapse loss, inflammation and insulin signaling in the brain, with a view to highlighting cognitive or neuropathological markers that distinguish AD from normal aging. It is hoped that this review will help to bolster future preclinical research and support the development of clinical tools and therapeutics for AD.展开更多
目的探究金水宝联合德谷胰岛素利拉鲁肽注射液对糖尿病肾病患者肾功能及糖脂代谢的影响。方法选取郑州颐和医院2021年11月至2023年5月收治的2型糖尿病肾病患者84例。采用随机数字表法分为两组,每组42例。对照组接受德谷胰岛素利拉鲁肽治...目的探究金水宝联合德谷胰岛素利拉鲁肽注射液对糖尿病肾病患者肾功能及糖脂代谢的影响。方法选取郑州颐和医院2021年11月至2023年5月收治的2型糖尿病肾病患者84例。采用随机数字表法分为两组,每组42例。对照组接受德谷胰岛素利拉鲁肽治疗,观察组接受德谷胰岛素利拉鲁肽联合金水宝治疗。治疗3个月后。比较两组患者的空腹血糖(FPG)、餐后2小时血糖(2 h PG)、糖化血红蛋白(HbA1c)、葡萄糖目标范围内时间(TIR)、总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、血肌酐、肾小球滤过率、尿素氮、尿白蛋白排泄率、24 h尿蛋白定量及中医证候评分,并记录不良反应。结果治疗后,两组FPG、2 h PG、HbA1c、TC、TG、LDL-C、血肌酐、尿素氮、尿白蛋白排泄率、24 h尿蛋白定量及中医主证、次证评分均降低(P<0.05),TIR、HDL-C、肾小球滤过率升高(P<0.05)。观察组治疗后FPG、2 h PG、HbA1c、TC、TG、LDL-C、血肌酐、尿素氮、尿白蛋白排泄率、24 h尿蛋白定量及中医证候评分均低于对照组(P<0.05),TIR、HDL-C、肾小球滤过率高于对照组(P<0.05)。两组不良反应发生率差异无统计学意义(P>0.05)。结论在德谷胰岛素利拉鲁肽治疗糖尿病肾病的基础上,联合金水宝治疗有利于改善糖脂代谢,提升肾功能,安全性良好。展开更多
The aim of this investigation was to determine whether a PPAR72 Prol2Ala polymorphism was associated with insulin resistance, β-cellfunction and hypertension in Chinese populations. 289 unrelated Chinese subjects fir...The aim of this investigation was to determine whether a PPAR72 Prol2Ala polymorphism was associated with insulin resistance, β-cellfunction and hypertension in Chinese populations. 289 unrelated Chinese subjects first diagnosed Type 2 diabetes （HbAC1〈6.0） were investigated, including 132 hypertensive diabetic （HTD） subjects, 157 normotensive diabetic （NTD） subjects. Blood pressure and anthropometric measurements were collected from all participants, as well as several venous blood samples during oral glucose tolerance test （OGTT）. Biochemical measurements （high-density lipoprotein （HDL） and low-density lipoprotein-cholesterol （LDL）, triglycerides） and PPARγ2 Pro12Ala genotype were also determined. And insulin resistance and β-cells function was assessed by HOMA-IR and HOMA-β respectively. The frequency of subjects bearing the Pro12Ala was lower in the hypertension group （3. 03 %） than in the non-hypertension group （5.7 %） （P〈0.05） after adjusted for age, BMI and gender. Hypertensive diabetic Pro12Ala subjects had lower fasting plasma glucose level （P=0. 0127）, and better glucose tolerance 60 min after oral glucose （P=0. 0361）. Moreover, plasma insulin concentrations at 60 min was lower than those without A variant （P = 0. 0275）, and both hypertensive Ala/Pro in HOMA-β （P ： 0. 0455） and AUC for insulin （P=0. 0473） were higher, and HOMA-IR was lower （P=0. 0375） as compared with hypertensive Pro/Pro subjects. No association was observed between Prol2Ala genotype and BMI, total cholesterol, HDL- cholesterol or triglycerides in either group. Our findings suggested that the Ala 12 allele of the PPARγ2 gene may improve insulin resistance and ameliorate β-cell function reserves in T2DM with hypertension, and protect patients from hypertension in T2DM. As an important thrifty gene, environment factors may exerts an effect of PPARγ2 on glucose homeostasis and insulin resistance.展开更多
Objective: In this study, we assessed the level of fasting C-peptide as a predictor of β-cell function and insulin resistance in patients with Type 2 diabetes mellitus (T2DM), Gezira State-Sudan. Methods: In this cro...Objective: In this study, we assessed the level of fasting C-peptide as a predictor of β-cell function and insulin resistance in patients with Type 2 diabetes mellitus (T2DM), Gezira State-Sudan. Methods: In this cross-sectional study, 100 T2DM patients attending the Diabetic patients care Centre were recruited, thirty five patients were males and sixty five were females, the mean age of the patients was 50.29 ± 0.456 years, and body mass index (BMI) was 26.54 ± 0.437. We estimated β-cell function using fasting C-peptide levels;homeostatic model assessment for β-cell function (HOMA-B) and insulin resistance (HOMA-IR) were calculated from C-peptide and fasting blood glucose (FBG). Results: C-peptide was significantly and positively correlated with HOMA-B and HOMA-IR. FBG also showed significant negative correlation with HOMA-B, but was positively and significantly correlated with HOMA-IR. HbA1c was negatively and significantly correlated with HOMA-B. Patients with low C-peptide levels had increased FBG and HbA1c level, while patients with high C-peptide levels were having high HOMA-IR and HOMA-B. Conclusions: Fasting C-peptide is a useful marker of pancreatic β-cell function, and its circulating levels could be used to evaluate insulin secretion and insulin resistance. Moreover, HOMA-IR is an effective index to achieve glycemic control by appropriate pharmacologic treatment of T2DM.展开更多
Objective: The aim of this study is to investigate how individuals with type 2 diabetes mellitus’ pancreatic β-cell function index and insulin resistance index are affected by tuberculosis infection. Methods: The st...Objective: The aim of this study is to investigate how individuals with type 2 diabetes mellitus’ pancreatic β-cell function index and insulin resistance index are affected by tuberculosis infection. Methods: The study group consisted of 89 patients with type 2 diabetes mellitus and tuberculosis infection who were admitted to Jingzhou Chest Hospital between March 2019 and March 2021. Gender and duration of diabetes were matching conditions. The control group was made up of 89 patients with type 2 diabetes who were admitted to Jingzhou Central Hospital’s endocrinology department during the same period. The two patient groups provided general information such as gender, age, length of diabetes, and blood biochemical indexes such as glycosylated hemoglobin (HbA1c), fasting glucose (FPG), and fasting C-peptide (FC-P). The HOMA calculator was used to calculate the HOMA-β and the HOMA-IR, and intergroup comparisons and correlation analyses were carried out. Results: Regarding gender, age, disease duration, FC-P, and HbA1c, the differences between the two groups were not statistically significant (P > 0.05). However, BMI, FPG, HOMA-β, and HOMA-IR showed statistically significant differences (P < 0.05). In comparison to the control group, the study group’s HOMA-β was lower and its HOMA-IR was greater. According to Spearman’s correlation analysis, HOMA-β had a negative association (P th FPG, HbA1c, and the length of the disease, and a positive correlation with BMI and FC-P. A positive correlation was found between HOMA-IR and BMI, FPG, and FC-P (P < 0.01), as well as a correlation with the length of the disease (P > 0.05) and HbA1c. Conclusions: In type 2 diabetes mellitus combined with tuberculosis infection, the patients had higher FPG levels and lower FC-P levels, the secretory function of pancreatic β-cells was more severely impaired, and insulin resistance was more obvious.展开更多
基金Supported by the Beijing Natural Science Foundation(No.7131007)National Basic Research Program of China(973 ProgramNo.2007CB512201)
文摘AIM： To investigate the relationship between insulin resistance （IR）/β-cell dysfunction and diabetic retinopathy （DR） in Chinese patients with type 2 diabetes mellitus （T2DM）, and to explore further whether there were differences in the relationship among diabetic patients with higher and lower body mass index （BMI）. METHODS： Cross-sectional study. A total of 1466 subjects with T2DM were recruited in a local Desheng Community of urban Beijing from November 2009 to June 2012 for the cohort of Beijing Desheng Diabetic Eye Study. Standardized evaluation was carried out for each participant, including questionnaire, ocular and anthropometric examinations, and laboratory tests. Seven fields 30° color fundus photographs were used for DR grading according to the Early Treatment Diabetic Retinopathy Study protocols. Homeostatis Model Assessment （HOMA） method was employed for IR and β-cell function assessment. RESULTS： After excluding those participants who were treated with insulin （n=352） or had missing data of fasting insulin （n=96）, and further excluding those with poor quality of retinal photographs （n=10）, a total of 1008 subjects were included for the final analysis, 406 （40.3%） were men and 602 （59.7%） were women, age ranging fiom 34 to 86 （64.87±8.28）y. Any DR （levels 14 and above） was present in 278 （27.6%） subjects. After adjusting for possible covariates, the presence of any DR did not correlate with HOMA IR [odds ratio （OR） 1.51, 95% confidence interval （Cl） 0.87-2.61, P=0.14] or HOMA β-cell （OR 0.71, 95%CI 0.40-1.26, P=0.25）. After stratification by BMI, the presence of any DR was associated positively with HOMA IR （OR 2.46, 95%CI： 1.18-5.12, P=0.016）, and negatively with HOMA β-cell （OR 0.40, 95%CI： 0.19-0.87, P=0.021） in the group of patients with higher BMI （225 kg/m2）. In the group of patients with lower BMI （〈25 kg/m2）, the presence of any DR was not associated with HOMA IR （OR 1.00, 95%C1： 0.43-2.33, P=I.00） or HOMA β-cell （OR 1.41, 95%CI： 0.60-3.32, P=0.43）. CONCLUSION： The data suggest that higher IR and lower 13-cell function are associated with the presence of DR in the subgroup of diabetic patients with higher BMI. However, this association is not statistically significant in diabetic patients with lower BMI.
文摘Insulin has been shown to possess significant anti-apoptotic effect in myocardial ischemia/reperfusion (MI/R). However, the contribution by this protection of insulin to
文摘Background: There are data that suggest adiposity is associated with diminished cognitive functioning in adults and youth, independent of related co-morbidities. Little is known about the pathophysiological mechanisms associated with cognitive function in obese youth. The objective of the present study was to assess the associations among cognitive functioning and insulin regulation in a sample of obese youth. Methods: The sample consisted of 30 obese, non-diabetic youth (BMI > 95th percentile) ages 6-16 years (mean age = 12.60 years) referred to an outpatient pediatric endocrinology clinic. Youth were administered the Wechsler Abbreviated Scale of Intelligence (WASI) and Wide Range Assessment of Memory and Learning (WRAML-2). Results: Verbal memory, attention/concentration, and intelligence scores were similar across obese youth with elevated insulin levels and normal insulin levels. Obese youth with elevated insulin levels had lower scores in visual memory, with a medium effect (effect size = 0.51). Fasting insulin levels were not associated with any of the four cognitive domains in the multiple linear regression analysis (P > 0.05). Conclusions: These data provide preliminary evidence that visual memory may be impacted in obese youth with insulin resistance. Longitudinal studies examining insulin regulation, cognitive functioning, and weight status over time are needed.
文摘β-cell dysfunction and decreased insulin sensitivity are believed to be two chief mechanisms that participate in deterioration of glycemic control in Type 2 diabetes. Meformin is widely accepted as the first-line oral agent in the treatment of Type 2 diabetes. However, the relative contributions of improved β-cell function and increased insulin sensitivity to reduction in hemoglobin A1c (HbA1c) are unclear in newly diagnosed Type 2 diabetic patients treated with metformin. We investigated β-cell function and insulin sensitivity in relation to reduction in HbA1c in 20 newly diagnosed Type 2 diabetic patients (17 men and 3 women, mean age 49.1 ± 10.1 years, mean body mass index 26.4 ± 5.2 kg/m2) treated with metformin for 16 weeks. We used homeostasis model assessment (HOMA) 2%B and HOMA2%S as estimates of β-cell function and insulin sensitivity, respectively. Median HOMA2%B and HOMA2%S significantly increased from 38.8 to 68.8 (p p = 0.004), respectively. In univariate regression analysis, reduction in HbA1c was highly correlated with change in HOMA2%B (r = -0.866, p < 0.001), but not with that in HOMA2%S (r = -0.264, p = 0.260). Furthermore, multivariate regression analysis with reduction in HbA1c as a dependent variable showed that increase in HOMA2%B but not that in HOMA2%S was a significant dependent variable (β = -0.847, p β-cell function rather than increased insulin sensitivity is associated with reduction in HbA1c. These results suggest that metformin reduces HbA1c chiefly through improved β-cell function rather than increased insulin sensitivity in patients with newly diagnosed Type 2 diabetes.
基金supported by grants from National Natural Science Foundation of China(Grant No.82301577).
文摘Insulin is a peptide hormone secreted by pancreaticβ-cells,which plays a key role in regulating glucose metabolism and is the only hormone in the body capable of lowering blood glucose level.The development of insulin preparations has undergone nearly 100 years of history,from early animal insulin extraction to modern synthetic insulin and insulin analogs,which have greatly advanced the treatment of diabetes.The insulin receptor has a wide distribution in the body,and its activation leads to intracellular signaling mainly through two pathways,PI3K/Akt and Ras/MAPK.Clinically,insulin is crucial in the treatment and management of diabetes and its complications,especially in the cases where oral medications fail to control blood glucose.The role of insulin is not limited to the regulation of blood glucose but has a wide range of functions throughout the body,such as regulation of mitochondrial function and metabolism,the promotion of protein synthesis,adipogenesis,and cellular proliferation.However,insulin overdose may lead to severe hypoglycemia,which,if left untreated,poses the risk of irreversible neurological damage or even fatality.In this paper,we review the history of the development of insulin preparations,the molecular structure of insulin,the biological processes initiated by insulin and insulin deficiency/resistance.The overview of side effects from insulin is also included in this review.We assume that future research could focus on refining insulin analogs for greater therapeutic precision,minimizing side effects,and extending benefits beyond glycemic control.Exploring insulin’s additional effects may unlock potential applications in treating multiple diseases.
文摘Increased circulating branched-chain amino acids(BCAAs)have been involved in the pathogenesis of obesity and insulin resistance.However,evidence relating berberine(BBR),gut microbiota,BCAAs,and insulin resis⁃tance is limited.Here,we showed that BBR could effectively rectify steatohepatitis and glucose intolerance in high-fat diet(HFD)-fed mice.BBR reorganized gut microbiota populations under both the normal chow diet(NCD)and HFD.Particu⁃larly,BBR noticeably decreased the relative abundance of BCAA-producing bacteria,including order Clostridiales;fami⁃lies Streptococcaceae,Clostridiaceae,and Prevotellaceae;and genera Streptococcus and Prevotella.Compared with the HFD group,predictive metagenomics indicated a reduction in the proportion of gut microbiota genes involved in BCAA biosynthesis but the enrichment genes for BCAA degradation and transport by BBR treatment.Accordingly,the elevated serum BCAAs of HFD group were significantly decreased by BBR.Furthermore,the Western blotting results implied that BBR could promote the BCAA catabolism in the liver and epididymal white adipose tissues of HFD-fed mice by acti⁃vation of the multienzyme branched-chain α-ketoacid dehydrogenase complex,whereas by inhibition of the phosphoryla⁃tion state of BCKDHA(E1α subunit)and branched-chain α-ketoacid dehydrogenase kinase.The ex vivo assay further confirmed that BBR could increase BCAA catabolism in both AML12 hepatocytes and 3T3-L1 adipocytes.Finally,data from healthy subjects and diabetics confirmed that BBR could improve glycemic control and modulate circulating BCAAs.Besides,functional microbiomics integrated high-throughput microbial genomics,metabolomics and molecular biotechnology has also been successfully applied to reveal the anti-obesity mechanism of hydroxysafflor yellow A.
基金Supported by Research Institute of Endocrine Sciences,Shahid Beheshti University of Medical Sciences,Tehran,Iran
文摘Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due to their biological properties, may be used as complementary treatment for type 2 diabetes mellitus. In this review, we have highlighted various functional foods as missing part of medical nutrition therapy in diabetic patients. Several in vitro, animal models and some human studies, have demonstrated that functional foods and nutraceuticals may improve postprandial hyperglycemia and adipose tissue metabolism modulatecarbohydrate and lipid metabolism. Functional foods may also improve dyslipidemia and insulin resistance, and attenuate oxidative stress and inflammatory processes and subsequently could prevent the development of long-term diabetes complications including cardiovascular disease, neuropathy, nephropathy and retinopathy. In conclusion available data indicate that a functional foods-based diet may be a novel and comprehensive dietary approach for management of type 2 diabetes.
基金Supported by The National Natural Science Foundation of China, No. 30971354The International Cooperation Project of Jiangsu Province Department of Health, No. SBZ201100103The Graduate Innovation Foundation of Jiangsu Province, China,No. CXZZ11_0704
文摘AIM: To investigate whether the reduction of stem cell factor (SCF) is mediated by decreased endogenous insulin-like growth factor (IGF)-1 in diabetic rat colon smooth muscle. METHODS: Sixteen Sprague-Dawley rats were randomly divided into two groups: control group and streptozotocin-induced diabetic group. After 8 wk of streptozotocin administration, colonic motility function and contractility of circular muscle strips were measured. The expression of endogenous IGF-1 and SCF was tested in colonic tissues. Colonic smooth muscle cells were cultured from normal adult rats. IGF-1 siRNA transfection was used to investigate whether SCF expression was affected by endogenous IGF-1 expression in smooth muscle cells, and IGF-1 induced SCF expression effects were studied. The effect of high glucose on the expression of endogenous IGF-1 and SCF was also investigated. RESULTS: Diabetic rats showed prolonged colonic transit time (252 ± 16 min vs 168 ± 9 min, P < 0.01) and weakness of circular muscle contraction (0.81 ± 0.09 g vs 2.48 ± 0.23 g, P < 0.01) compared with the control group. Endogenous IGF-1 and SCF protein expression was significantly reduced in the diabetic colonic muscle tissues. IGF-1 and SCF mRNA expression also showed a paralleled reduction in diabetic rats. In the IGF-1 siRNA transfected smooth muscle cells, SCF mRNA and protein expression was significantly decreased. IGF-1 could induce SCF expression in a concentration and time-dependent manner, mainly through the extracellular-signal-regulated kinase 1/2 signal pathway. High glucose inhibited endogenous IGF-1 and SCF expression and the addition of IGF-1 to the medium reversed the SCF expression. CONCLUSION: Myopathy may resolve in colonic motility dysfunction in diabetic rats. Deficiency of endogenous IGF-1 in colonic smooth muscle cells leads to reduction of SCF expression.
基金supported by the Medical College Natural Science Foundation of Shanghai Jiao Tong University (09XJ21028)the Shanghai Jiaotong University Interdisciplinary Study Foundation Medicine and Engineer
文摘Objective decline of resistance whether H Type 2 diabetes has been recently recognized as an important risk factor for cognitive patients with Alzheimer＇s disease （AD）. But the roles of hyperinsulinemia （HI） and insulin （IR） in the development of AD are still controversial. This study was designed to evaluate or IR influenced the cognitive functions of older cohort. Methods The cognitive functions of 328 consecutive elderly patients were evaluated with a battery of cognitive rating scales. Their fasting blood glucose （FBG） and fasting insulin （FINS） were analyzed and IR was calculated with modified-Homa. The cognitive scores in different groups and the correlation of cognitive functions with HI or IR were analyzed. Results In our study, there were 180 participants with HI and 148 without HI, and 192 with iR and 136 without IR. The participants with HI showed worse cognitive functions than those without HI in MMSE, MOCA, CDR, orientation, delayed memory, and attention/calculation domains. Similarly, the elderly with IR had lower cognitive scores than those without IR in MMSE, MOCA, CDR, GDS, orientation, delayed memory, and attention/calculation domains. The insulin levels and Homa IR had negative correlation with the scores of MMSE and delayed memory, not only in the model I adjusted for FBG and diabetes history, but also in the model 2 adjusted for all nine demographic characteristics. Conclusion HI and IR are important risk factors for cognitive decline of the elderly, especially for the dysfunctions in delayed memory domains.
文摘Objective To investigate therelationships between serum concentration of insulin -like growth factor - I (IGF-I) and left ventricular function as well as coronary collateral circulation in patients with coronary artery disease (CAD) . Methods In 41 patients with CAD and 15 control subjects without CAD, the concentrations of serum IGF - I were measured using radioimmunoassay. The relationships between the concentration of serum IGF - I and Leaman coronary artery score, Rentrop grade of coronary collateral circulation, left ventricular ejection fraction (LVEF) as well as left ventricular wall motion Cortina score were assessed. Results 1. There was no significant difference in the mean level of serum IGF -I between the CAD group and the control group (107. 92±44.74 ng/ml vs 113.05 ±33. 65 ng/ml, P> 0. 05), but the IGF - I concentrations in the subgroup with collateral circulation were significantly greater than that in the control group (147. 33 ±29. 92 ng/ml vs 113. 05±33. 65 ng/ml, P < 0. 01) or in the subgroup without collateral circulation (147. 33 ±29. 92 ng/ml vs 80. 01±29. 75 ng/ml , P < 0. 01). 2. The serum concentration of IGF -I had no significant correlation to the Leaman coronary artery score. 3. The serum level of IGF -I had significantly positive correlation to both LVEF ( r = 0. 45, P < 0. 001) and the Rentrop grade of coronary collateral circulation ( r = 0. 74, P < 0. 001), and was negatively related to the left ventricular wall motion Cortina score (r = -0. 53, P < 0. 001). 4. The Leaman coronary artery score had no significant correlation to the Rentrop grade of coronary collateral circulation. 5. The Leaman coronary artery score was related to neither the LVEF nor the Cortina score in the whole CAD group. In the subgroup without coronary collateral circulation, however, the Leaman score had significantly negative correlation to LVEF ( r = - 0. 46, P < 0. 05) and positive correlation to the Cortina score (r = 0. 47, P < 0. 05) . Conclusions The serum concentration of IGF -I was associated with both left ventricular function and coronary collateral circulation in patients with CAD. IGF -I may play a role in promoting coronary collateral circulation and in protecting left ventricular function in patients with coronary artery disease.
文摘AIM: To investigate the relationship of iron indices with diabetes mellitus(DM) in those without hemochromatosis.METHODS: This cross-sectional study examined data collected during the Third National Health and Nutrition Examination Survey(NHANES III). Only those who fasted properly and were not anemic with transferrin saturation < 45% were included(n = 6849). Insulin sensitivity and beta cell function were calculated from fasting glucose and insulin concentrations. Indices of iron metabolism were examined in the presence or absence of DM. We examined the relationship of insulin sensitivity and beta cell function with serum ferritin concentration. The influence of C-reactive protein and liver enzymes was also investigated.RESULTS: Serum ferritin concentration was significantly higher in diabetic subjects(P = 0.0001 to< 0.000001). The difference remained significant after adjustment for age, body mass index, alcohol consumption, and mineral/iron supplement(P = 0.03 to< 0.000001). In those who did not take insulin, serum ferritin concentration was negatively associated with insulin sensitivity(P = 0.05 to 0.00001), but not with beta cell function. The alanine aminotransferase was correlated with serum ferritin concentration(P = 0.02 to< 0.000001) but not with insulin sensitivity, suggesting the role of the liver in iron-associated insulin resistance.CONCLUSION: As most of diabetes is type 2 diabetes and insulin resistance is a cardinal feature of type 2diabetes, disordered iron metabolism could play a role in the pathogenesis of insulin resistance and type 2diabetes through its effect on liver function.
基金supported by the Department of Education and Learning,Northern Ireland,UK
文摘As populations age, prevalence of Alzheimer＇s disease（AD） is rising. Over 100 years of research has provided valuable insights into the pathophysiology of the disease, for which age is the principal risk factor. However, in recent years, a multitude of clinical trial failures has led to pharmaceutical corporations becoming more and more unwilling to support drug development in AD. It is possible that dependence on the amyloid cascade hypothesis as a guide for preclinical research and drug discovery is part of the problem. Accumulating evidence suggests that amyloid plaques and tau tangles are evident in non-demented individuals and that reducing or clearing these lesions does not always result in clinical improvement. Normal aging is associated with pathologies and cognitive decline that are similar to those observed in AD, making differentiation of AD-related cognitive decline and neuropathology challenging. In this mini-review, we discuss the difficulties with discerning normal, age-related cognitive decline with that related to AD. We also discuss some neuropathological features of AD and aging, including amyloid and tau pathology, synapse loss, inflammation and insulin signaling in the brain, with a view to highlighting cognitive or neuropathological markers that distinguish AD from normal aging. It is hoped that this review will help to bolster future preclinical research and support the development of clinical tools and therapeutics for AD.
文摘目的探究金水宝联合德谷胰岛素利拉鲁肽注射液对糖尿病肾病患者肾功能及糖脂代谢的影响。方法选取郑州颐和医院2021年11月至2023年5月收治的2型糖尿病肾病患者84例。采用随机数字表法分为两组,每组42例。对照组接受德谷胰岛素利拉鲁肽治疗,观察组接受德谷胰岛素利拉鲁肽联合金水宝治疗。治疗3个月后。比较两组患者的空腹血糖(FPG)、餐后2小时血糖(2 h PG)、糖化血红蛋白(HbA1c)、葡萄糖目标范围内时间(TIR)、总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、血肌酐、肾小球滤过率、尿素氮、尿白蛋白排泄率、24 h尿蛋白定量及中医证候评分,并记录不良反应。结果治疗后,两组FPG、2 h PG、HbA1c、TC、TG、LDL-C、血肌酐、尿素氮、尿白蛋白排泄率、24 h尿蛋白定量及中医主证、次证评分均降低(P<0.05),TIR、HDL-C、肾小球滤过率升高(P<0.05)。观察组治疗后FPG、2 h PG、HbA1c、TC、TG、LDL-C、血肌酐、尿素氮、尿白蛋白排泄率、24 h尿蛋白定量及中医证候评分均低于对照组(P<0.05),TIR、HDL-C、肾小球滤过率高于对照组(P<0.05)。两组不良反应发生率差异无统计学意义(P>0.05)。结论在德谷胰岛素利拉鲁肽治疗糖尿病肾病的基础上,联合金水宝治疗有利于改善糖脂代谢,提升肾功能,安全性良好。
文摘The aim of this investigation was to determine whether a PPAR72 Prol2Ala polymorphism was associated with insulin resistance, β-cellfunction and hypertension in Chinese populations. 289 unrelated Chinese subjects first diagnosed Type 2 diabetes （HbAC1〈6.0） were investigated, including 132 hypertensive diabetic （HTD） subjects, 157 normotensive diabetic （NTD） subjects. Blood pressure and anthropometric measurements were collected from all participants, as well as several venous blood samples during oral glucose tolerance test （OGTT）. Biochemical measurements （high-density lipoprotein （HDL） and low-density lipoprotein-cholesterol （LDL）, triglycerides） and PPARγ2 Pro12Ala genotype were also determined. And insulin resistance and β-cells function was assessed by HOMA-IR and HOMA-β respectively. The frequency of subjects bearing the Pro12Ala was lower in the hypertension group （3. 03 %） than in the non-hypertension group （5.7 %） （P〈0.05） after adjusted for age, BMI and gender. Hypertensive diabetic Pro12Ala subjects had lower fasting plasma glucose level （P=0. 0127）, and better glucose tolerance 60 min after oral glucose （P=0. 0361）. Moreover, plasma insulin concentrations at 60 min was lower than those without A variant （P = 0. 0275）, and both hypertensive Ala/Pro in HOMA-β （P ： 0. 0455） and AUC for insulin （P=0. 0473） were higher, and HOMA-IR was lower （P=0. 0375） as compared with hypertensive Pro/Pro subjects. No association was observed between Prol2Ala genotype and BMI, total cholesterol, HDL- cholesterol or triglycerides in either group. Our findings suggested that the Ala 12 allele of the PPARγ2 gene may improve insulin resistance and ameliorate β-cell function reserves in T2DM with hypertension, and protect patients from hypertension in T2DM. As an important thrifty gene, environment factors may exerts an effect of PPARγ2 on glucose homeostasis and insulin resistance.
文摘Objective: In this study, we assessed the level of fasting C-peptide as a predictor of β-cell function and insulin resistance in patients with Type 2 diabetes mellitus (T2DM), Gezira State-Sudan. Methods: In this cross-sectional study, 100 T2DM patients attending the Diabetic patients care Centre were recruited, thirty five patients were males and sixty five were females, the mean age of the patients was 50.29 ± 0.456 years, and body mass index (BMI) was 26.54 ± 0.437. We estimated β-cell function using fasting C-peptide levels;homeostatic model assessment for β-cell function (HOMA-B) and insulin resistance (HOMA-IR) were calculated from C-peptide and fasting blood glucose (FBG). Results: C-peptide was significantly and positively correlated with HOMA-B and HOMA-IR. FBG also showed significant negative correlation with HOMA-B, but was positively and significantly correlated with HOMA-IR. HbA1c was negatively and significantly correlated with HOMA-B. Patients with low C-peptide levels had increased FBG and HbA1c level, while patients with high C-peptide levels were having high HOMA-IR and HOMA-B. Conclusions: Fasting C-peptide is a useful marker of pancreatic β-cell function, and its circulating levels could be used to evaluate insulin secretion and insulin resistance. Moreover, HOMA-IR is an effective index to achieve glycemic control by appropriate pharmacologic treatment of T2DM.
文摘Objective: The aim of this study is to investigate how individuals with type 2 diabetes mellitus’ pancreatic β-cell function index and insulin resistance index are affected by tuberculosis infection. Methods: The study group consisted of 89 patients with type 2 diabetes mellitus and tuberculosis infection who were admitted to Jingzhou Chest Hospital between March 2019 and March 2021. Gender and duration of diabetes were matching conditions. The control group was made up of 89 patients with type 2 diabetes who were admitted to Jingzhou Central Hospital’s endocrinology department during the same period. The two patient groups provided general information such as gender, age, length of diabetes, and blood biochemical indexes such as glycosylated hemoglobin (HbA1c), fasting glucose (FPG), and fasting C-peptide (FC-P). The HOMA calculator was used to calculate the HOMA-β and the HOMA-IR, and intergroup comparisons and correlation analyses were carried out. Results: Regarding gender, age, disease duration, FC-P, and HbA1c, the differences between the two groups were not statistically significant (P > 0.05). However, BMI, FPG, HOMA-β, and HOMA-IR showed statistically significant differences (P < 0.05). In comparison to the control group, the study group’s HOMA-β was lower and its HOMA-IR was greater. According to Spearman’s correlation analysis, HOMA-β had a negative association (P th FPG, HbA1c, and the length of the disease, and a positive correlation with BMI and FC-P. A positive correlation was found between HOMA-IR and BMI, FPG, and FC-P (P < 0.01), as well as a correlation with the length of the disease (P > 0.05) and HbA1c. Conclusions: In type 2 diabetes mellitus combined with tuberculosis infection, the patients had higher FPG levels and lower FC-P levels, the secretory function of pancreatic β-cells was more severely impaired, and insulin resistance was more obvious.
