The arbuscular mycorrhiza （AM） is a kind of fungi-plant associated sym- biont formed by the arbuscular mycorrhizal fungi and plants in soil. Present study was limited to the population and community level, mainly in...The arbuscular mycorrhiza （AM） is a kind of fungi-plant associated sym- biont formed by the arbuscular mycorrhizal fungi and plants in soil. Present study was limited to the population and community level, mainly in horticulture, land recla- mation, forest and environmental restoration. Research progress was also made at the cellular level and molecular level. Process and related mechanism of mycorrhizal fungi infecting root were reviewed, and future study on the mechanism of arbuscular mycorrhizal fungi infecting root should be continued.展开更多
Colonoscopy represents a safe procedure that is widely used in medical practice either to diagnose or treat various gastrointestinal diseases.During the last few years,the incidence rate of perforations in colonoscopi...Colonoscopy represents a safe procedure that is widely used in medical practice either to diagnose or treat various gastrointestinal diseases.During the last few years,the incidence rate of perforations in colonoscopic procedures has increased,especially in therapeutic colonoscopies.The recent advancements in endoscopic techniques and gastrointestinal tumoral resection procedures such as endoscopic mucosal resection,endoscopic full-thickness resection,and endoscopic submucosal dissection(ESD)could be a risk factor for this increased risk.The incidence rate of mortality of serious colonoscopic perforations is 7.1%.The management plan for these perforations starts with conservative treatment in mild cases,endoscopic closure,and surgical management in severe cases.Recently,endoluminal vacuum therapy was found to be effective in the management of colorectal perforations and this has been reported in multiple case reports.This editorial provides an overview of the current guidelines for the management of iatrogenic colorectal perforations.These insights are from the perspectives of endoscopists and gastroenterologists.We also present a management algorithm based on the guidelines of the European Society of Gastrointestinal Endoscopy,the American Gastroenterological Association,and the World Society of Emergency Surgery.We also discussed in brief the use of endoluminal vacuum therapy in colorectal perforations.展开更多
In this editorial,we reviewed the article by Fadlallah et al that was recently published in the World Journal of Clinical Oncology.The article provided a comprehensive and in-depth view of the management and treatment...In this editorial,we reviewed the article by Fadlallah et al that was recently published in the World Journal of Clinical Oncology.The article provided a comprehensive and in-depth view of the management and treatment of colorectal cancer(CRC),one of the leading causes of cancer-related morbidity and mortality worldwide.The article analyzed the therapeutic modalities and their sequencing,focusing on total neoadjuvant therapy for locally advanced rectal cancer.It highlighted the role of immunotherapy in tumors with high microsatellite instability or deficient mismatch repair,addressing recent advances that have improved prognosis and therapeutic response in localized and metastatic CRC.Innovations in surgical techniques,advanced radiotherapy,and systemic agents targeting specific mutational profiles are also discussed,reflecting on how they revolutionized clinical management.Circulating tumor DNA has emerged as a promising tool for detecting minimal residual disease,prognosis,and therapeutic monitoring,solidifying its role in precision oncology.This review emphasized the importance of technological and therapeutic advancements in improving clinical outcomes and personalizing CRC treatment.展开更多
BACKGROUND Magnetic compression anastomosis(MCA)offers a simple and reliable technique for inducing anastomoses at any point along the digestive tract.Evidence regarding whether the design of the MCA device influences...BACKGROUND Magnetic compression anastomosis(MCA)offers a simple and reliable technique for inducing anastomoses at any point along the digestive tract.Evidence regarding whether the design of the MCA device influences the anastomosis effect is lacking.AIM To investigate any difference in the side-to-side colonic anastomosis effect achieved with cylindrical vs circular ring magnets.METHODS We designed cylindrical and circular ring magnets suitable for side-to-side colonic anastomosis in rats.Thirty Sprague-Dawley rats were randomly divided into a cylindrical group,circular ring group,and cylindrical–circular ring group(n=10/group).Side-to-side colonic anastomosis was completed by transanal insertion of the magnets without incision of the colon.Operation time,perioperative complications,and magnet discharge time were recorded.Rats were euthanized 4 weeks postoperatively,and anastomotic specimens were obtained.The burst pressure and anastomotic diameter were measured sequentially,and anastomosis formation was observed by naked eye.Histological results were observed by light microscopy.RESULTS In all 30 rats,side-to-side colonic anastomosis was completed,for an operation success rate of 100%.No postoperative complications of bleeding and intestinal obstruction occurred,and the postoperative survival rate were 100%.The operation time,magnet discharge time,anastomotic bursting pressure,and anastomotic diameter did not differ significantly among the three designs(P>0.05).Healing was similar across the groups,with gross specimens showing good anastomotic healing and good mucosal continuity observed on histological analysis.CONCLUSION This study found no significant difference in the establishment of rat side-to-side colonic anastomosis with the use of cylindrical vs circular ring magnets.展开更多
we critically review the authors’perspective and analyze the relevance of the results obtained in the original article of clinical research by Liu et al.We consider that additional factors associated with colon cance...we critically review the authors’perspective and analyze the relevance of the results obtained in the original article of clinical research by Liu et al.We consider that additional factors associated with colon cancer progression have recently been described in extensive clinical research,and should be included in this analysis to achieve a more accurate prognosis.These factors include inflammation,gut microbiota composition,immune status and nutritional balance,as they influence the post-surgical survival profile of patients with stage II colorectal cancer.We also address the clinical implementation and limitations of these analyses.Evaluation of the patient´s entire context is essential for selection of the most appropriate therapy.展开更多
BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through surgery.With the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of research.The choice be...BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through surgery.With the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of research.The choice between intraperitoneal anastomosis(IA)and extraperitoneal anastomosis(EA)remains a subject of considerable debate.This study uses intraperitoneal isoperistaltic side-to-side anastomosis(IISSA)with hand-sewn closure of the common opening to evaluate its safety and short-term outcomes.It is hypothesized that this technique may offer better short-term outcomes than EA.AIM To investigate the safety and short-term outcomes of IISSA with hand-sewn closure of the common opening compared to EA.METHODS Patients who underwent laparoscopic radical colon cancer surgery between January 2018 and June 2022 at the First Affiliated Hospital of Xiamen University were retrospectively analyzed.Surgical,postoperative,and pathological features of the IA and EA groups were observed before and after propensity score matching.Patients with right-sided and left-sided colon cancer were separated,each further divided into IA and EA groups(R-IA vs R-EA for right-sided,L-IA vs L-EA for left-sided),for stratified analysis of the aforementioned indicators.RESULTS After propensity score matching,63 pairs were matched in each group.In surgical characteristics,the IA group exhibited less blood loss and shorter incisions than the EA group.Regarding postoperative recovery,the IA group showed earlier recovery of gastrointestinal function.Pathologically,the IA group had greater lymph node clearance.Relative to the R-EA group,the R-IA group experienced reduced blood loss,shorter assisted incisions,earlier recovery of gastrointestinal functions and greater lymph node dissection.When compared to the L-EA group,the L-IA group demonstrated earlier postoperative anal exhaust and defecation,along with a reduced length of hospitalization.Regarding postoperative complications,no statistically significant differences were found between the groups either after matching or in the stratified analyses.CONCLUSION Compared to EA,IISSA with hand-sewn closure of the common opening is a safe and feasible option for laparoscopic radical colon cancer surgery.展开更多
Dental implants have restored masticatory function to over 100000000 individuals,yet almost 1000000 implants fail each year due to peri-implantitis,a disease triggered by peri-implant microbial dysbiosis.Our ability t...Dental implants have restored masticatory function to over 100000000 individuals,yet almost 1000000 implants fail each year due to peri-implantitis,a disease triggered by peri-implant microbial dysbiosis.Our ability to prevent and treat peri-implantitis is hampered by a paucity of knowledge of how these biomes are acquired and the factors that engender normobiosis.Therefore,we combined a 3-month interventional study of 15 systemically and periodontally healthy adults with whole genome sequencing,finescale enumeration and graph theoretics to interrogate colonization dynamics in the pristine peri-implant sulcus.We discovered that colonization trajectories of implants differ substantially from adjoining teeth in acquisition of new members and development of functional synergies.Source-tracking algorithms revealed that this niche is initially seeded by bacteria trapped within the coverscrew chamber during implant placement.These pioneer species stably colonize the microbiome and exert a sustained influence on the ecosystem by serving as anchors of influential hubs and by providing functions that enable cell replication and biofilm maturation.Unlike the periodontal microbiome,recruitment of new members to the peri-implant community occurs on nepotistic principles.Maturation is accompanied by a progressive increase in anaerobiosis,however,the predominant functionalities are oxygen-dependent over the 12-weeks.The peri-implant community is easily perturbed following crown placement,but demonstrates remarkable resilience;returning to pre-perturbation states within three weeks.This study highlights important differences in the development of the periodontal and peri-implant ecosystems,and signposts the importance of placing implants in periodontally healthy individuals or following the successful resolution of periodontal disease.展开更多
BACKGROUND Type Ⅱ diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with metastases.The effects of T2DM on postoperative chemoresistance rate(CRR)and lo...BACKGROUND Type Ⅱ diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with metastases.The effects of T2DM on postoperative chemoresistance rate(CRR)and long-term disease-free survival(DFS)and overall survival(OS)in patients with stage Ⅲ CC who receive curative resection remain controversial.AIM To investigate whether T2DM or glycemic control is associated with worse postoperative survival outcomes in stage Ⅲ CC.METHODS This retrospective cohort study included 278 patients aged 40-75 years who underwent surgery for stage Ⅲ CC from 2018 to 2021.Based on preoperative T2DM history,the patients were categorized into non-DM(n=160)and DM groups(n=118).The latter was further divided into well-controlled(n=73)and poorly controlled(n=45)groups depending on the status of glycemic control.DFS,OS,and CRR were compared between the groups and Cox regression analysis was used to identify risk factors.RESULTS Patients in the DM and non-DM groups demonstrated similar DFS,OS,and CRR(DFS:72.03%vs 78.75%,P=0.178;OS:81.36%vs 83.12%,P=0.638;CRR:14.41%vs 7.5%,P=0.063).Poorly controlled DM was associated with a significantly worse prognosis and higher CRR than well-controlled DM(DFS:62.22%vs 78.07%,P=0.021;OS:71.11%vs 87.67%,P=0.011;CRR:24.40%vs 8.22%,P=0.015).High preoperative fasting plasma glucose[DFS:Hazard ratio(HR)=2.684,P<0.001;OS:HR=2.105,P=0.019;CRR:HR=2.214,P=0.005]and glycosylated hemoglobin levels(DFS:HR=2.344,P=0.006;OS:HR=2.119,P=0.021;CRR:HR=2.449,P=0.009)indicated significantly poor prognosis and high CRR,while T2DM history did not(DFS:HR=1.178,P=0.327;OS:HR=0.933,P=0.739;CRR:HR=0.997,P=0.581).CONCLUSION Increased preoperative fasting plasma glucose and glycosylated hemoglobin levels,but not T2DM history,were identified as risk factors associated with poor postoperative outcomes and high CRR in patients with stage Ⅲ CC.展开更多
BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ubiquitination.Conversely,reduced expression result...BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ubiquitination.Conversely,reduced expression results in a loss of this capacity to facilitate cyclin E degradation.The ubiquitination and degradation of cyclin E1 may be associated with phosphorylation at specific sites on the protein,with Cx43 potentially enhancing this process by facilitating the phosphorylation of these critical residues.AIM To investigate the correlation between expression of Cx43,SKP1/Cullin1/F-box(SCF)FBXW7,p-cyclin E1(ser73,thr77,thr395)and clinicopathological indexes in colon cancer.METHODS Expression levels of Cx43,SCF^(FBXW7),p-cyclin E1(ser73,thr77,thr395)in 38 clinical colon cancer samples were detected by immunohistochemistry and were analyzed by statistical methods to discuss their correlations.RESULTS Positive rate of Cx43,SCF^(FBXW7),p-cyclin E1(Ser73),p-cyclin E1(Thr77)and p-cyclin E1(Thr395)in detected samples were 76.32%,76.32%,65.79%,5.26%and 55.26%respectively.Positive expressions of these proteins were not related to the tissue type,degree of tissue differentiation or lymph node metastasis.Cx43 and SCF^(FBXW7)(r=0.749),p-cyclin E1(Ser73)(r=0.667)and p-cyclin E1(Thr395)(r=0.457),SCF^(FBXW7) and p-cyclin E1(Ser73)(r=0.703)and p-cyclin E1(Thr395)(0.415)were correlated in colon cancer(P<0.05),and expressions of the above proteins were positively correlated in colon cancer.CONCLUSION Cx43 may facilitate the phosphorylation of cyclin E1 at the Ser73 and Thr195 sites through its interaction with SCF^(FBXW7),thereby influencing the ubiquitination and degradation of cyclin E1.展开更多
Post-colonoscopic colorectal cancer(PCCRC),also known as interval CRC,is defined as CRC diagnosed more than six months after a colonoscopy in which no cancer was detected.It typically arises from missed lesions or inc...Post-colonoscopic colorectal cancer(PCCRC),also known as interval CRC,is defined as CRC diagnosed more than six months after a colonoscopy in which no cancer was detected.It typically arises from missed lesions or incomplete resections and is now recognized as one of the most reliable quality indicators for assessing colonoscopy performance.With an incidence rate of 3.6%to 9.3%,PCCRC remains a significant concern,highlighting the limitations of colonoscopy in CRC screening—not only in terms of diagnostic accuracy but also in its preventive role and effectiveness in treating lesions.A range of clinical,endoscopic,and biological factors has been associated with an increased risk of PCCRC.Identifying these factors can help stratify high-risk patients,enabling earlier detection and improving preventive strategies for interval CRC.Reducing PCCRC should be a top priority for every endoscopy unit.While technological advancements will enhance polyp detection,minimize missed lesions,prevent incomplete resections,and improve overall procedural quality,the most impactful strategy remains internal self-assessment within each unit.This review should evaluate key performance metrics,including cecal intubation rate,adenoma detection rate,withdrawal time,PCCRC incidence,and incomplete resections—both at the individual endoscopist level and across the entire unit.展开更多
This article explored the application of dexmedetomidine(Dex),a highly selective alpha-2 agonist,in managing postoperative cognitive dysfunction(POCD)in elderly patients undergoing radical colon cancer surgery.Aging i...This article explored the application of dexmedetomidine(Dex),a highly selective alpha-2 agonist,in managing postoperative cognitive dysfunction(POCD)in elderly patients undergoing radical colon cancer surgery.Aging is associated with a progressive decline in physiological functions and an increased risk of adverse surgical outcomes,including POCD,which encompasses many neurocognitive disorders that manifest during the perioperative period.The aging population is at a higher risk for POCD,which can lead to prolonged hospital stays,delayed recovery,and increased healthcare costs.Dex has neuroprotective,opioid-sparing,and sympatholytic properties,which reduces the incidence and severity of POCD.Dex was introduced for sedation in patients receiving mechanical ventilation but has since been adopted in anesthesia due to its multifaceted benefits.Its appli-cation extends to sedation,analgesia,maintenance of anesthesia,and controlling delirium.Its neuroprotective and anti-inflammatory effects have been explored in managing POCD.This article discussed the broad range of patient and procedure-related risk factors for POCD.Early identification and intervention are crucial to prevent the progression of POCD,which can have severe physical,psychological,and economic consequences.The article underscored the importance of a mul-tidisciplinary approach in managing POCD,involving the optimization of comor-bidities,depth of anesthesia monitoring,hemodynamic stability,and cerebral oxygenation monitoring.展开更多
BACKGROUND Peutz-Jeghers(PJ)syndrome(PJS)is a rare autosomal dominant genetic disease characterized by the association of intestinal polyposis,mucosal skin pigmen-tation,and cancer susceptibility.PJS patients have a s...BACKGROUND Peutz-Jeghers(PJ)syndrome(PJS)is a rare autosomal dominant genetic disease characterized by the association of intestinal polyposis,mucosal skin pigmen-tation,and cancer susceptibility.PJS patients have a significantly increased risk of malignant tumors in the gastrointestinal tract and extra-gastrointestinal tract,including various epithelial malignant tumors(colorectal cancer,gastric cancer,pancreatic cancer,breast cancer,and ovarian cancer,etc.).PJS is commonly seen in children and adolescents with multiple small intestinal polyps,often causing intussusception.CASE SUMMARY A 62-year-old male presented with intermittent left lower abdominal pain after drinking or consuming cold beverages that was accompanied by occasional hematochezia.Abdominal contrast-enhanced computed tomography indicated an isolated sigmoid colon grape-like lesion.Subsequently,the patient underwent la-paroscopic surgery,and the pathological diagnosis was PJ hamartomatous polyp.PJS was not considered at the initial visit,as the patient was older,and the facial pigmentation was not obvious.However,significant pigmentation was observed in the perineum during digital rectal examination.Interestingly,we observed that the patient exhibited nodular shadows in the adrenal glands computed tomo-graphy images that may be related to pigmentation.Therefore,we performed the determination of adrenal cortical hormones,but the results were not abnormal.Combined with skin and mucosal pigmentation and laboratory examinations,the patient was diagnosed with PJS.After laparoscopic sigmoid colon resection,the patient's symptoms improved,and no discomfort symptoms were reported in the later follow-up.CONCLUSION The age of onset and lesion location of this case are different from those of typical or isolated PJS patients.展开更多
BACKGROUND Surveillance colonoscopies are predominantly normal,identifying patients for potential polypectomy is advantageous.AIM To assess colon capsule endoscopy(CCE)and/or faecal immunochemical test(FIT)as filters ...BACKGROUND Surveillance colonoscopies are predominantly normal,identifying patients for potential polypectomy is advantageous.AIM To assess colon capsule endoscopy(CCE)and/or faecal immunochemical test(FIT)as filters in surveillance.METHODS Patients aged≥18 due for polyp surveillance were invited for CCE and FIT.Identifying polyps or colorectal cancer resulted in a positive CCE.Significant lesions(≥3 polyps or≥6 mm polyps),incomplete studies and positive FITs(≥225 ng/mL)were referred for endoscopy.CCE and endoscopy results,FIT accuracy and patient preference were assessed.RESULTS From a total of 126 CCEs[mean age 64(31-80),67(53.2%)males),70.6%(89/126)were excreted,86.5%(109/126)had adequate image quality.CCE positivity was 70.6%(89/126),42.9%(54/126)having significant polyps with 63.5%(80/126)referred for endoscopy(19 sigmoidoscopies,61 colonoscopies).CCE reduced endoscopy need by 36.5%(46/126)and 51.6%(65/126)were spared a colonoscopy.CCE positive predictive value was 88.2%(45/51).Significant extracolonic findings were reported in 3.2%(4/126).Patients with positive CCEs were older>65[odds ratio(OR)=2.5,95%confidence interval(CI):1.1517-5.5787,P=0.0159],with personal history of polyps(OR=2.3,95%CI:0.9734-5.4066,P=0.045),with high/intermediate polyp surveillance risk(OR=5.4,95%CI:1.1979-24.3824,P=0.0156).Overall,5/114(4.4%)FITs were positive(range:0-1394 ng/mL,mean:54 ng/mL).Sensitivity(9.6%)and negative predictive values(20.3%)were inadequate.Receiver operating curve analysis gave a sensitivity and specificity of 26.9%and 91.7%,for FIT of 43 ng/mL.Patients preferred CCE 63.3%(76/120),with less impact on daily activities(21.7%vs 93.2%)and time off work(average days 0.9 vs 1.2,P=0.0201).CONCLUSION CCE appears effective in low-risk polyp surveillance.FIT does not appear to be of benefit in surveillance.展开更多
Bowel obstruction is a frequent reason for hospital admissions and can be categorized into small or large,partial or complete obstructions.While small bowel obstructions occur more often,large bowel obstructions accou...Bowel obstruction is a frequent reason for hospital admissions and can be categorized into small or large,partial or complete obstructions.While small bowel obstructions occur more often,large bowel obstructions account for 20%-25%of all cases,primarily aff ecting elderly patients.[1]Malignancy is the leading cause of large bowel obstruction and is responsible for 50%-60%of cases.Other causes include idiopathic,volvulus,infl ammatory,hernia,adhesion,intussusception,endometriosis,and functional colon disorders.[1]Colonic volvulus is the third most common cause of large bowel obstruction.Most cases of colonic volvulus occur in the sigmoid(60%-70%)and cecum(25%-40%)regions.[2]In contrast,transverse colon volvulus(TCV)is rare,accounting for less than 3%of large bowel obstructions.[3]This condition has a high mortality rate of 18%-33%,predominantly due to delayed diagnosis and the absence of characteristic radiological findings.[3-5]This case report presents a rare instance of TCV obstruction in a 19-year-old patient from Mankweng Academic Hospital.展开更多
BACKGROUND Self-expandable metal stent(SEMS)as a bridge to surgery(BTS)has become a popular alternative to emergency surgery in the management of acute left-sided malignant colonic obstruction(MCO).However,it remains ...BACKGROUND Self-expandable metal stent(SEMS)as a bridge to surgery(BTS)has become a popular alternative to emergency surgery in the management of acute left-sided malignant colonic obstruction(MCO).However,it remains controversial for colonic stent as a BTS due to a lack of consensus and insufficient data.AIM To assess the clinical and oncological safety of SEMS insertion followed by elective resection for acute left-sided MCO.METHODS The data from 96 patients with acute left-sided MCO in our institution from January 2018 to May 2020 were analyzed retrospectively.They underwent colonic stenting as a bridge to elective surgery(BTS group:n=40)or emergency resection(ER group:n=56).Demographic characteristics,stoma rate,laparoscopy rate,postoperative complications,and oncological outcomes were compared between the two groups.RESULTS The two groups were comparable with regard to the demographics and tumor characteristics.The stoma rate was 7.5%in the BTS group vs 48.2%in the ER group(P<0.05).Primary anastomosis was performed in all patients in the BTS group,and only three patients underwent protective stoma in the BTS group.The BTS group had a significantly higher rate of laparoscopic surgery than the ER group(90%vs 57.1%,P<0.05),and the major postoperative complication rate was significantly higher in the ER group than in the BTS group(33.9%vs 15%,P=0.04).According to the Kaplan-Meier survival analysis and log rank test,no significant differences existed in the two groups with regard to the overall survival and disease-free survival.CONCLUSION The utilization of SEMS as a BTS is a useful alternative to emergency surgery in the treatment of acute left-sided MCO.SEMS insertion as a BTS can provide an effective and safe therapeutic option compared to emergency surgery.展开更多
BACKGROUND Colonic diverticular bleeding is a significant cause of acute overt lower gastrointestinal hemorrhage.Colonoscopy is commonly performed in patients with colonic diverticular bleeding to identify and treat t...BACKGROUND Colonic diverticular bleeding is a significant cause of acute overt lower gastrointestinal hemorrhage.Colonoscopy is commonly performed in patients with colonic diverticular bleeding to identify and treat the source of bleeding,which is crucial for effective management.CASE SUMMARY We present the case of a 70-year-old male with acute painless hematochezia.Colonoscopy showed active bleeding originating from a diverticulum,and the EyeMax direct visualization system was used in the treatment of the colonic diverticular bleeding.No further evidence of bleeding was observed at the end of the procedure.The patient was discharged from hospital on the seventh day.CONCLUSION The EyeMax system proved advantageous in localizing the bleeding diverticulum,thereby facilitating successful hemostatic measures.展开更多
There are various histological characteristics which have been proposed to predict the survival rate in colon cancer.However,there is no definitive model to accurately predict the survival.Therefore,it is important to...There are various histological characteristics which have been proposed to predict the survival rate in colon cancer.However,there is no definitive model to accurately predict the survival.Therefore,it is important to find out one model for the prediction of survival in colon cancer which may also include the preoperative,and operative factors in addition to histopathology.展开更多
BACKGROUND Colorectal cancer(CRC)is one of the most common cancers worldwide.The gold standard screening methods for early detection and monitoring are colonoscopy and stool-based tests.However,innovative and minimall...BACKGROUND Colorectal cancer(CRC)is one of the most common cancers worldwide.The gold standard screening methods for early detection and monitoring are colonoscopy and stool-based tests.However,innovative and minimally invasive biomarkers need to be integrated into clinical practice.AIM To identify circulating microRNAs as potential CRC biomarkers through a com-parative analysis of tissue and plasma samples from patients with CRC.METHODS This case-control study conducted a quantitative real-time polymerase chain reaction analysis of 84 microRNAs in tumoral and peritumoral tissues,and 179 microRNAs in plasma from 19 patients with CRC.A control cohort for the tissue analysis and another control cohort for the plasma analysis have been enrolled.RESULTS In total,14 microRNAs were significantly differentially expressed in the tissue and plasma samples.Notably,five microRNAs(miR-26b-5p,miR-101-3p,miR-30d-5p,miR-107,and miR-21-5p)presented the same trend in terms of fold change in both types of biological samples.Significant associations between the circulating levels of miR-21-5p and miR-26b-5p and lymphovascular invasion were found.CONCLUSION These five microRNAs with significantly altered levels in plasma and tumoral tissue,could be good non-invasive CRC biomarkers candidates,enhancing screening,and supporting precision and individualized patient care.展开更多
Saline-alkali soil severely reduces the productivity of crops,including maize(Zea mays).Although several genes associated with saline-alkali tolerance have been identified in maize,the underlying regulatory mechanism ...Saline-alkali soil severely reduces the productivity of crops,including maize(Zea mays).Although several genes associated with saline-alkali tolerance have been identified in maize,the underlying regulatory mechanism remains elusive.Here,we report a direct link between colonization by arbuscular mycorrhizal fungi(AMF)and saline-alkali tolerance in maize.We identify s75,a natural maize mutant that cannot survive under moderate saline-alkali soil conditions or establish AM symbioses.The saline-alkali hypersensitive phenotype of s75 is caused by a 1340-bp deletion in Zm00001d033915,designated as ZmL75.This gene encodes a glycerol-3-phosphate acyltransferase localized in the endoplasmic reticulum,and is responsible for AMF colonization.ZmL75 expression levels in roots correspond with the root length colonization(RLC)rate during early vegetative development.Notably,the s75 mutant line shows a complete loss of AMF colonization,along with alterations in the diversity and structure of its root fungal microbiota.Conversely,overexpression of ZmL75 increases the RLC rate and enhances tolerance to saline-alkali soil conditions.These results suggest that ZmL75 is required for symbiosis with AMF,which directly improves saline-alkali tolerance.Our findings provide insights into maize-AMF interactions and offer a potential strategy for maize improvement.展开更多
BACKGROUND Intussusception is the invagination of a segment of the bowel into an adjacent segment.It is the most common cause of intestinal obstruction in children,but in adults,it is rare,accounting for 1%of all inte...BACKGROUND Intussusception is the invagination of a segment of the bowel into an adjacent segment.It is the most common cause of intestinal obstruction in children,but in adults,it is rare,accounting for 1%of all intestinal obstructions and 5%of all intussusceptions,with malignancy being the most common cause.In the past,it was typically diagnosed intraoperatively.However,with the availability of computed tomography for abdominal imaging,recognizing the condition's signs has become crucial.Surgical intervention is essential for managing neoplastic cases and their complications.CASE SUMMARY A 45-year-old female presented with severe abdominal pain encompassing her entire abdomen,abdominal distension,vomiting,and persistent constipation.Over the past two months,she has also experienced considerable weight loss.After an initial history review,examination,and imaging investigations,the patient was diagnosed with ileo cecal intussusception resulting from a colo rectal mass located in the cecum and ascending colon.This condition was surgically managed through an extended right hemi colectomy.CONCLUSION Intussusception is uncommon in adults,but it should be considered in patients with intestinal obstruction.Surgical intervention is essential.展开更多
基金Supported by the National Natural Science Foundation of China(41401496)the Foundation for Fostering Talents of the Xi’an University of Technology(201306)the Startup Foundation for Doctors of Xi’an University of Technology(2014QDJ061)~~
文摘The arbuscular mycorrhiza （AM） is a kind of fungi-plant associated sym- biont formed by the arbuscular mycorrhizal fungi and plants in soil. Present study was limited to the population and community level, mainly in horticulture, land recla- mation, forest and environmental restoration. Research progress was also made at the cellular level and molecular level. Process and related mechanism of mycorrhizal fungi infecting root were reviewed, and future study on the mechanism of arbuscular mycorrhizal fungi infecting root should be continued.
文摘Colonoscopy represents a safe procedure that is widely used in medical practice either to diagnose or treat various gastrointestinal diseases.During the last few years,the incidence rate of perforations in colonoscopic procedures has increased,especially in therapeutic colonoscopies.The recent advancements in endoscopic techniques and gastrointestinal tumoral resection procedures such as endoscopic mucosal resection,endoscopic full-thickness resection,and endoscopic submucosal dissection(ESD)could be a risk factor for this increased risk.The incidence rate of mortality of serious colonoscopic perforations is 7.1%.The management plan for these perforations starts with conservative treatment in mild cases,endoscopic closure,and surgical management in severe cases.Recently,endoluminal vacuum therapy was found to be effective in the management of colorectal perforations and this has been reported in multiple case reports.This editorial provides an overview of the current guidelines for the management of iatrogenic colorectal perforations.These insights are from the perspectives of endoscopists and gastroenterologists.We also present a management algorithm based on the guidelines of the European Society of Gastrointestinal Endoscopy,the American Gastroenterological Association,and the World Society of Emergency Surgery.We also discussed in brief the use of endoluminal vacuum therapy in colorectal perforations.
文摘In this editorial,we reviewed the article by Fadlallah et al that was recently published in the World Journal of Clinical Oncology.The article provided a comprehensive and in-depth view of the management and treatment of colorectal cancer(CRC),one of the leading causes of cancer-related morbidity and mortality worldwide.The article analyzed the therapeutic modalities and their sequencing,focusing on total neoadjuvant therapy for locally advanced rectal cancer.It highlighted the role of immunotherapy in tumors with high microsatellite instability or deficient mismatch repair,addressing recent advances that have improved prognosis and therapeutic response in localized and metastatic CRC.Innovations in surgical techniques,advanced radiotherapy,and systemic agents targeting specific mutational profiles are also discussed,reflecting on how they revolutionized clinical management.Circulating tumor DNA has emerged as a promising tool for detecting minimal residual disease,prognosis,and therapeutic monitoring,solidifying its role in precision oncology.This review emphasized the importance of technological and therapeutic advancements in improving clinical outcomes and personalizing CRC treatment.
基金Supported by the Key Research and Development Program of Shaanxi,No.2024SF-YBXM-447the Institutional Foundation of The First Affiliated Hospital of Xi’an Jiaotong University,No.2022MS-07the Fundamental Research Funds for the Central Universities,No.xzy022023068.
文摘BACKGROUND Magnetic compression anastomosis(MCA)offers a simple and reliable technique for inducing anastomoses at any point along the digestive tract.Evidence regarding whether the design of the MCA device influences the anastomosis effect is lacking.AIM To investigate any difference in the side-to-side colonic anastomosis effect achieved with cylindrical vs circular ring magnets.METHODS We designed cylindrical and circular ring magnets suitable for side-to-side colonic anastomosis in rats.Thirty Sprague-Dawley rats were randomly divided into a cylindrical group,circular ring group,and cylindrical–circular ring group(n=10/group).Side-to-side colonic anastomosis was completed by transanal insertion of the magnets without incision of the colon.Operation time,perioperative complications,and magnet discharge time were recorded.Rats were euthanized 4 weeks postoperatively,and anastomotic specimens were obtained.The burst pressure and anastomotic diameter were measured sequentially,and anastomosis formation was observed by naked eye.Histological results were observed by light microscopy.RESULTS In all 30 rats,side-to-side colonic anastomosis was completed,for an operation success rate of 100%.No postoperative complications of bleeding and intestinal obstruction occurred,and the postoperative survival rate were 100%.The operation time,magnet discharge time,anastomotic bursting pressure,and anastomotic diameter did not differ significantly among the three designs(P>0.05).Healing was similar across the groups,with gross specimens showing good anastomotic healing and good mucosal continuity observed on histological analysis.CONCLUSION This study found no significant difference in the establishment of rat side-to-side colonic anastomosis with the use of cylindrical vs circular ring magnets.
基金Supported by Consejo Nacional de Investigaciones Científicas y Técnicas,No.PIP11220200103061COAgencia Nacional de promoción Científica y Tecnológica,No.PICT-2020-SERIEA-03440Universidad Nacional del Sur,No.PGI 24/B303 and No.PGI 24/ZB01.
文摘we critically review the authors’perspective and analyze the relevance of the results obtained in the original article of clinical research by Liu et al.We consider that additional factors associated with colon cancer progression have recently been described in extensive clinical research,and should be included in this analysis to achieve a more accurate prognosis.These factors include inflammation,gut microbiota composition,immune status and nutritional balance,as they influence the post-surgical survival profile of patients with stage II colorectal cancer.We also address the clinical implementation and limitations of these analyses.Evaluation of the patient´s entire context is essential for selection of the most appropriate therapy.
基金Bethune Charitable Foundation Project,No.HZB-20190528-10Natural Science Foundation of Fujian Province,No.2020J011230.
文摘BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through surgery.With the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of research.The choice between intraperitoneal anastomosis(IA)and extraperitoneal anastomosis(EA)remains a subject of considerable debate.This study uses intraperitoneal isoperistaltic side-to-side anastomosis(IISSA)with hand-sewn closure of the common opening to evaluate its safety and short-term outcomes.It is hypothesized that this technique may offer better short-term outcomes than EA.AIM To investigate the safety and short-term outcomes of IISSA with hand-sewn closure of the common opening compared to EA.METHODS Patients who underwent laparoscopic radical colon cancer surgery between January 2018 and June 2022 at the First Affiliated Hospital of Xiamen University were retrospectively analyzed.Surgical,postoperative,and pathological features of the IA and EA groups were observed before and after propensity score matching.Patients with right-sided and left-sided colon cancer were separated,each further divided into IA and EA groups(R-IA vs R-EA for right-sided,L-IA vs L-EA for left-sided),for stratified analysis of the aforementioned indicators.RESULTS After propensity score matching,63 pairs were matched in each group.In surgical characteristics,the IA group exhibited less blood loss and shorter incisions than the EA group.Regarding postoperative recovery,the IA group showed earlier recovery of gastrointestinal function.Pathologically,the IA group had greater lymph node clearance.Relative to the R-EA group,the R-IA group experienced reduced blood loss,shorter assisted incisions,earlier recovery of gastrointestinal functions and greater lymph node dissection.When compared to the L-EA group,the L-IA group demonstrated earlier postoperative anal exhaust and defecation,along with a reduced length of hospitalization.Regarding postoperative complications,no statistically significant differences were found between the groups either after matching or in the stratified analyses.CONCLUSION Compared to EA,IISSA with hand-sewn closure of the common opening is a safe and feasible option for laparoscopic radical colon cancer surgery.
基金supported by National Institutes of Health R03DE027492 to Shareef Dabdoubsupported by National Institutes of Health,project number 7R01DE027857-06supported by National Institutes of Health R56DE033913 awarded to Purnima Kumar.
文摘Dental implants have restored masticatory function to over 100000000 individuals,yet almost 1000000 implants fail each year due to peri-implantitis,a disease triggered by peri-implant microbial dysbiosis.Our ability to prevent and treat peri-implantitis is hampered by a paucity of knowledge of how these biomes are acquired and the factors that engender normobiosis.Therefore,we combined a 3-month interventional study of 15 systemically and periodontally healthy adults with whole genome sequencing,finescale enumeration and graph theoretics to interrogate colonization dynamics in the pristine peri-implant sulcus.We discovered that colonization trajectories of implants differ substantially from adjoining teeth in acquisition of new members and development of functional synergies.Source-tracking algorithms revealed that this niche is initially seeded by bacteria trapped within the coverscrew chamber during implant placement.These pioneer species stably colonize the microbiome and exert a sustained influence on the ecosystem by serving as anchors of influential hubs and by providing functions that enable cell replication and biofilm maturation.Unlike the periodontal microbiome,recruitment of new members to the peri-implant community occurs on nepotistic principles.Maturation is accompanied by a progressive increase in anaerobiosis,however,the predominant functionalities are oxygen-dependent over the 12-weeks.The peri-implant community is easily perturbed following crown placement,but demonstrates remarkable resilience;returning to pre-perturbation states within three weeks.This study highlights important differences in the development of the periodontal and peri-implant ecosystems,and signposts the importance of placing implants in periodontally healthy individuals or following the successful resolution of periodontal disease.
基金Supported by the Leading Innovation Specialist Support Program of Guangdong Provincethe Science and Technology Planning Project of Ganzhou,No.202101074816the National Natural Science Foundation of China,No.82260501.
文摘BACKGROUND Type Ⅱ diabetes mellitus(T2DM)has been associated with increased risk of colon cancer(CC)and worse prognosis in patients with metastases.The effects of T2DM on postoperative chemoresistance rate(CRR)and long-term disease-free survival(DFS)and overall survival(OS)in patients with stage Ⅲ CC who receive curative resection remain controversial.AIM To investigate whether T2DM or glycemic control is associated with worse postoperative survival outcomes in stage Ⅲ CC.METHODS This retrospective cohort study included 278 patients aged 40-75 years who underwent surgery for stage Ⅲ CC from 2018 to 2021.Based on preoperative T2DM history,the patients were categorized into non-DM(n=160)and DM groups(n=118).The latter was further divided into well-controlled(n=73)and poorly controlled(n=45)groups depending on the status of glycemic control.DFS,OS,and CRR were compared between the groups and Cox regression analysis was used to identify risk factors.RESULTS Patients in the DM and non-DM groups demonstrated similar DFS,OS,and CRR(DFS:72.03%vs 78.75%,P=0.178;OS:81.36%vs 83.12%,P=0.638;CRR:14.41%vs 7.5%,P=0.063).Poorly controlled DM was associated with a significantly worse prognosis and higher CRR than well-controlled DM(DFS:62.22%vs 78.07%,P=0.021;OS:71.11%vs 87.67%,P=0.011;CRR:24.40%vs 8.22%,P=0.015).High preoperative fasting plasma glucose[DFS:Hazard ratio(HR)=2.684,P<0.001;OS:HR=2.105,P=0.019;CRR:HR=2.214,P=0.005]and glycosylated hemoglobin levels(DFS:HR=2.344,P=0.006;OS:HR=2.119,P=0.021;CRR:HR=2.449,P=0.009)indicated significantly poor prognosis and high CRR,while T2DM history did not(DFS:HR=1.178,P=0.327;OS:HR=0.933,P=0.739;CRR:HR=0.997,P=0.581).CONCLUSION Increased preoperative fasting plasma glucose and glycosylated hemoglobin levels,but not T2DM history,were identified as risk factors associated with poor postoperative outcomes and high CRR in patients with stage Ⅲ CC.
基金Supported by Innovative Practice Platform for Undergraduate Students,School of Public Health Xiamen University,No.2021001.
文摘BACKGROUND Previous cellular studies have demonstrated that elevated expression of Cx43 promotes the degradation of cyclin E1 and inhibits cell proliferation through ubiquitination.Conversely,reduced expression results in a loss of this capacity to facilitate cyclin E degradation.The ubiquitination and degradation of cyclin E1 may be associated with phosphorylation at specific sites on the protein,with Cx43 potentially enhancing this process by facilitating the phosphorylation of these critical residues.AIM To investigate the correlation between expression of Cx43,SKP1/Cullin1/F-box(SCF)FBXW7,p-cyclin E1(ser73,thr77,thr395)and clinicopathological indexes in colon cancer.METHODS Expression levels of Cx43,SCF^(FBXW7),p-cyclin E1(ser73,thr77,thr395)in 38 clinical colon cancer samples were detected by immunohistochemistry and were analyzed by statistical methods to discuss their correlations.RESULTS Positive rate of Cx43,SCF^(FBXW7),p-cyclin E1(Ser73),p-cyclin E1(Thr77)and p-cyclin E1(Thr395)in detected samples were 76.32%,76.32%,65.79%,5.26%and 55.26%respectively.Positive expressions of these proteins were not related to the tissue type,degree of tissue differentiation or lymph node metastasis.Cx43 and SCF^(FBXW7)(r=0.749),p-cyclin E1(Ser73)(r=0.667)and p-cyclin E1(Thr395)(r=0.457),SCF^(FBXW7) and p-cyclin E1(Ser73)(r=0.703)and p-cyclin E1(Thr395)(0.415)were correlated in colon cancer(P<0.05),and expressions of the above proteins were positively correlated in colon cancer.CONCLUSION Cx43 may facilitate the phosphorylation of cyclin E1 at the Ser73 and Thr195 sites through its interaction with SCF^(FBXW7),thereby influencing the ubiquitination and degradation of cyclin E1.
文摘Post-colonoscopic colorectal cancer(PCCRC),also known as interval CRC,is defined as CRC diagnosed more than six months after a colonoscopy in which no cancer was detected.It typically arises from missed lesions or incomplete resections and is now recognized as one of the most reliable quality indicators for assessing colonoscopy performance.With an incidence rate of 3.6%to 9.3%,PCCRC remains a significant concern,highlighting the limitations of colonoscopy in CRC screening—not only in terms of diagnostic accuracy but also in its preventive role and effectiveness in treating lesions.A range of clinical,endoscopic,and biological factors has been associated with an increased risk of PCCRC.Identifying these factors can help stratify high-risk patients,enabling earlier detection and improving preventive strategies for interval CRC.Reducing PCCRC should be a top priority for every endoscopy unit.While technological advancements will enhance polyp detection,minimize missed lesions,prevent incomplete resections,and improve overall procedural quality,the most impactful strategy remains internal self-assessment within each unit.This review should evaluate key performance metrics,including cecal intubation rate,adenoma detection rate,withdrawal time,PCCRC incidence,and incomplete resections—both at the individual endoscopist level and across the entire unit.
文摘This article explored the application of dexmedetomidine(Dex),a highly selective alpha-2 agonist,in managing postoperative cognitive dysfunction(POCD)in elderly patients undergoing radical colon cancer surgery.Aging is associated with a progressive decline in physiological functions and an increased risk of adverse surgical outcomes,including POCD,which encompasses many neurocognitive disorders that manifest during the perioperative period.The aging population is at a higher risk for POCD,which can lead to prolonged hospital stays,delayed recovery,and increased healthcare costs.Dex has neuroprotective,opioid-sparing,and sympatholytic properties,which reduces the incidence and severity of POCD.Dex was introduced for sedation in patients receiving mechanical ventilation but has since been adopted in anesthesia due to its multifaceted benefits.Its appli-cation extends to sedation,analgesia,maintenance of anesthesia,and controlling delirium.Its neuroprotective and anti-inflammatory effects have been explored in managing POCD.This article discussed the broad range of patient and procedure-related risk factors for POCD.Early identification and intervention are crucial to prevent the progression of POCD,which can have severe physical,psychological,and economic consequences.The article underscored the importance of a mul-tidisciplinary approach in managing POCD,involving the optimization of comor-bidities,depth of anesthesia monitoring,hemodynamic stability,and cerebral oxygenation monitoring.
基金Supported by Medical Science Research Program of Hebei Province,No.20250060.
文摘BACKGROUND Peutz-Jeghers(PJ)syndrome(PJS)is a rare autosomal dominant genetic disease characterized by the association of intestinal polyposis,mucosal skin pigmen-tation,and cancer susceptibility.PJS patients have a significantly increased risk of malignant tumors in the gastrointestinal tract and extra-gastrointestinal tract,including various epithelial malignant tumors(colorectal cancer,gastric cancer,pancreatic cancer,breast cancer,and ovarian cancer,etc.).PJS is commonly seen in children and adolescents with multiple small intestinal polyps,often causing intussusception.CASE SUMMARY A 62-year-old male presented with intermittent left lower abdominal pain after drinking or consuming cold beverages that was accompanied by occasional hematochezia.Abdominal contrast-enhanced computed tomography indicated an isolated sigmoid colon grape-like lesion.Subsequently,the patient underwent la-paroscopic surgery,and the pathological diagnosis was PJ hamartomatous polyp.PJS was not considered at the initial visit,as the patient was older,and the facial pigmentation was not obvious.However,significant pigmentation was observed in the perineum during digital rectal examination.Interestingly,we observed that the patient exhibited nodular shadows in the adrenal glands computed tomo-graphy images that may be related to pigmentation.Therefore,we performed the determination of adrenal cortical hormones,but the results were not abnormal.Combined with skin and mucosal pigmentation and laboratory examinations,the patient was diagnosed with PJS.After laparoscopic sigmoid colon resection,the patient's symptoms improved,and no discomfort symptoms were reported in the later follow-up.CONCLUSION The age of onset and lesion location of this case are different from those of typical or isolated PJS patients.
文摘BACKGROUND Surveillance colonoscopies are predominantly normal,identifying patients for potential polypectomy is advantageous.AIM To assess colon capsule endoscopy(CCE)and/or faecal immunochemical test(FIT)as filters in surveillance.METHODS Patients aged≥18 due for polyp surveillance were invited for CCE and FIT.Identifying polyps or colorectal cancer resulted in a positive CCE.Significant lesions(≥3 polyps or≥6 mm polyps),incomplete studies and positive FITs(≥225 ng/mL)were referred for endoscopy.CCE and endoscopy results,FIT accuracy and patient preference were assessed.RESULTS From a total of 126 CCEs[mean age 64(31-80),67(53.2%)males),70.6%(89/126)were excreted,86.5%(109/126)had adequate image quality.CCE positivity was 70.6%(89/126),42.9%(54/126)having significant polyps with 63.5%(80/126)referred for endoscopy(19 sigmoidoscopies,61 colonoscopies).CCE reduced endoscopy need by 36.5%(46/126)and 51.6%(65/126)were spared a colonoscopy.CCE positive predictive value was 88.2%(45/51).Significant extracolonic findings were reported in 3.2%(4/126).Patients with positive CCEs were older>65[odds ratio(OR)=2.5,95%confidence interval(CI):1.1517-5.5787,P=0.0159],with personal history of polyps(OR=2.3,95%CI:0.9734-5.4066,P=0.045),with high/intermediate polyp surveillance risk(OR=5.4,95%CI:1.1979-24.3824,P=0.0156).Overall,5/114(4.4%)FITs were positive(range:0-1394 ng/mL,mean:54 ng/mL).Sensitivity(9.6%)and negative predictive values(20.3%)were inadequate.Receiver operating curve analysis gave a sensitivity and specificity of 26.9%and 91.7%,for FIT of 43 ng/mL.Patients preferred CCE 63.3%(76/120),with less impact on daily activities(21.7%vs 93.2%)and time off work(average days 0.9 vs 1.2,P=0.0201).CONCLUSION CCE appears effective in low-risk polyp surveillance.FIT does not appear to be of benefit in surveillance.
文摘Bowel obstruction is a frequent reason for hospital admissions and can be categorized into small or large,partial or complete obstructions.While small bowel obstructions occur more often,large bowel obstructions account for 20%-25%of all cases,primarily aff ecting elderly patients.[1]Malignancy is the leading cause of large bowel obstruction and is responsible for 50%-60%of cases.Other causes include idiopathic,volvulus,infl ammatory,hernia,adhesion,intussusception,endometriosis,and functional colon disorders.[1]Colonic volvulus is the third most common cause of large bowel obstruction.Most cases of colonic volvulus occur in the sigmoid(60%-70%)and cecum(25%-40%)regions.[2]In contrast,transverse colon volvulus(TCV)is rare,accounting for less than 3%of large bowel obstructions.[3]This condition has a high mortality rate of 18%-33%,predominantly due to delayed diagnosis and the absence of characteristic radiological findings.[3-5]This case report presents a rare instance of TCV obstruction in a 19-year-old patient from Mankweng Academic Hospital.
文摘BACKGROUND Self-expandable metal stent(SEMS)as a bridge to surgery(BTS)has become a popular alternative to emergency surgery in the management of acute left-sided malignant colonic obstruction(MCO).However,it remains controversial for colonic stent as a BTS due to a lack of consensus and insufficient data.AIM To assess the clinical and oncological safety of SEMS insertion followed by elective resection for acute left-sided MCO.METHODS The data from 96 patients with acute left-sided MCO in our institution from January 2018 to May 2020 were analyzed retrospectively.They underwent colonic stenting as a bridge to elective surgery(BTS group:n=40)or emergency resection(ER group:n=56).Demographic characteristics,stoma rate,laparoscopy rate,postoperative complications,and oncological outcomes were compared between the two groups.RESULTS The two groups were comparable with regard to the demographics and tumor characteristics.The stoma rate was 7.5%in the BTS group vs 48.2%in the ER group(P<0.05).Primary anastomosis was performed in all patients in the BTS group,and only three patients underwent protective stoma in the BTS group.The BTS group had a significantly higher rate of laparoscopic surgery than the ER group(90%vs 57.1%,P<0.05),and the major postoperative complication rate was significantly higher in the ER group than in the BTS group(33.9%vs 15%,P=0.04).According to the Kaplan-Meier survival analysis and log rank test,no significant differences existed in the two groups with regard to the overall survival and disease-free survival.CONCLUSION The utilization of SEMS as a BTS is a useful alternative to emergency surgery in the treatment of acute left-sided MCO.SEMS insertion as a BTS can provide an effective and safe therapeutic option compared to emergency surgery.
文摘BACKGROUND Colonic diverticular bleeding is a significant cause of acute overt lower gastrointestinal hemorrhage.Colonoscopy is commonly performed in patients with colonic diverticular bleeding to identify and treat the source of bleeding,which is crucial for effective management.CASE SUMMARY We present the case of a 70-year-old male with acute painless hematochezia.Colonoscopy showed active bleeding originating from a diverticulum,and the EyeMax direct visualization system was used in the treatment of the colonic diverticular bleeding.No further evidence of bleeding was observed at the end of the procedure.The patient was discharged from hospital on the seventh day.CONCLUSION The EyeMax system proved advantageous in localizing the bleeding diverticulum,thereby facilitating successful hemostatic measures.
文摘There are various histological characteristics which have been proposed to predict the survival rate in colon cancer.However,there is no definitive model to accurately predict the survival.Therefore,it is important to find out one model for the prediction of survival in colon cancer which may also include the preoperative,and operative factors in addition to histopathology.
基金Supported by European Union’s NextGeneration PNRR-III-C9-2022-I5,managed by the Ministry of Research,Innovation and Digitization,No.760009/30.12.2022,code CF 14/16.11.2022Ministry of Research,Innovation and Digitization of Romania,No.PN 23.16.02.04.
文摘BACKGROUND Colorectal cancer(CRC)is one of the most common cancers worldwide.The gold standard screening methods for early detection and monitoring are colonoscopy and stool-based tests.However,innovative and minimally invasive biomarkers need to be integrated into clinical practice.AIM To identify circulating microRNAs as potential CRC biomarkers through a com-parative analysis of tissue and plasma samples from patients with CRC.METHODS This case-control study conducted a quantitative real-time polymerase chain reaction analysis of 84 microRNAs in tumoral and peritumoral tissues,and 179 microRNAs in plasma from 19 patients with CRC.A control cohort for the tissue analysis and another control cohort for the plasma analysis have been enrolled.RESULTS In total,14 microRNAs were significantly differentially expressed in the tissue and plasma samples.Notably,five microRNAs(miR-26b-5p,miR-101-3p,miR-30d-5p,miR-107,and miR-21-5p)presented the same trend in terms of fold change in both types of biological samples.Significant associations between the circulating levels of miR-21-5p and miR-26b-5p and lymphovascular invasion were found.CONCLUSION These five microRNAs with significantly altered levels in plasma and tumoral tissue,could be good non-invasive CRC biomarkers candidates,enhancing screening,and supporting precision and individualized patient care.
基金National Natural Science Foundation of China(No.32171947 and No.31671699)which supported this research.
文摘Saline-alkali soil severely reduces the productivity of crops,including maize(Zea mays).Although several genes associated with saline-alkali tolerance have been identified in maize,the underlying regulatory mechanism remains elusive.Here,we report a direct link between colonization by arbuscular mycorrhizal fungi(AMF)and saline-alkali tolerance in maize.We identify s75,a natural maize mutant that cannot survive under moderate saline-alkali soil conditions or establish AM symbioses.The saline-alkali hypersensitive phenotype of s75 is caused by a 1340-bp deletion in Zm00001d033915,designated as ZmL75.This gene encodes a glycerol-3-phosphate acyltransferase localized in the endoplasmic reticulum,and is responsible for AMF colonization.ZmL75 expression levels in roots correspond with the root length colonization(RLC)rate during early vegetative development.Notably,the s75 mutant line shows a complete loss of AMF colonization,along with alterations in the diversity and structure of its root fungal microbiota.Conversely,overexpression of ZmL75 increases the RLC rate and enhances tolerance to saline-alkali soil conditions.These results suggest that ZmL75 is required for symbiosis with AMF,which directly improves saline-alkali tolerance.Our findings provide insights into maize-AMF interactions and offer a potential strategy for maize improvement.
文摘BACKGROUND Intussusception is the invagination of a segment of the bowel into an adjacent segment.It is the most common cause of intestinal obstruction in children,but in adults,it is rare,accounting for 1%of all intestinal obstructions and 5%of all intussusceptions,with malignancy being the most common cause.In the past,it was typically diagnosed intraoperatively.However,with the availability of computed tomography for abdominal imaging,recognizing the condition's signs has become crucial.Surgical intervention is essential for managing neoplastic cases and their complications.CASE SUMMARY A 45-year-old female presented with severe abdominal pain encompassing her entire abdomen,abdominal distension,vomiting,and persistent constipation.Over the past two months,she has also experienced considerable weight loss.After an initial history review,examination,and imaging investigations,the patient was diagnosed with ileo cecal intussusception resulting from a colo rectal mass located in the cecum and ascending colon.This condition was surgically managed through an extended right hemi colectomy.CONCLUSION Intussusception is uncommon in adults,but it should be considered in patients with intestinal obstruction.Surgical intervention is essential.
