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1.
J Cell Mol Med ; 28(16): e18562, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39189552

RESUMO

Tumour deposits (TDs) significantly impact colorectal cancer (CRC) prognosis. Integrating TDs into the TNM staging system can enhance individualized disease management. Keeping abreast of evolving TDs research is pivotal for clinical advancement. We comprehensively reviewed both recent and popular literature to grasp the field's essence. Subsequently, a data retrieval sourced articles on TDs in CRC for bibliometric analysis, spanning from 1 January 1935 to 30 April 2023. Bibliometrix software facilitated paper analysis and visualization. Bibliometric indicators, the trends and hotspots were determined. A total of 2147 articles were successfully retrieved. Brown G emerged as the most productive author, and the USA as the most prolific country. Central South University and Memorial Sloan Kettering Cancer Center led productivity. Bradford's law categorized 48 journals into zone 1. Keywords co-occurrence analysis identified three main clusters: the application of TDs in TNM staging, the pathogenesis of TDs, and the assessment of TDs. The trend topic analysis highlighted research focused on refining TDs incorporation into tumour staging. TDs wield enduring medical significance, shaping ongoing research. Much literature focused on confirming TD's prognostic value and optimizing TNM integration. Additionally, it is worth highlighting that TD's enigmatic pathogenesis demands research priority, as it holds the potential to unveil concealed knowledge regarding their development.


Assuntos
Neoplasias Colorretais , Estadiamento de Neoplasias , Humanos , Neoplasias Colorretais/patologia , Neoplasias Colorretais/diagnóstico , Prognóstico , Bibliometria , Tomada de Decisão Clínica
2.
Cell Mol Life Sci ; 80(9): 257, 2023 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-37594573

RESUMO

Severe acute pancreatitis (SAP) is a common critical disease of the digestive system, with high mortality and a lack of effective prevention and treatment measures. Despite mesenchymal stromal cell transplantation having the potential to treat SAP, its clinical application prospect is limited, and the mechanism is unclear. Here, we reveal the therapeutic role of exosomes from TNF-α-preconditioned human umbilical cord mesenchymal stromal cells (HUCMSCs) in attenuating SAP and show that it is partly dependent on exosomal metabolites. Bioactive metabolomics analysis showed that 48 metabolites be significantly differentially expressed between the two groups (Exo-Ctrl group versus Exo-TNF-α group). Then, the further functional experiments indicated that 3,4-dihydroxyphenylglycol could be a key molecule mediating the therapeutic effect of TNF-α-preconditioned HUCMSCs. The animal experiments showed that 3,4-dihydroxyphenylglycol reduced inflammation and oxidative stress in the pancreatic tissue and inhibited acinar cell autophagy in a rat model of SAP. Mechanistically, we revealed that 3,4-dihydroxyphenylglycol activated the mTOR pathway to inhibit acinar cell autophagy and alleviate SAP. In summary, our study demonstrated that exosomes from TNF-α-preconditioned HUMSCs inhibit the autophagy of acinar cells of SAP by shuttling 3,4-dihydroxyphenylglycol and inhibiting the mTOR pathway. This study revealed the vital role and therapeutic potential of metabolite-derived exosomes in SAP, providing a new promising method to prevent and therapy SAP.


Assuntos
Exossomos , Células-Tronco Mesenquimais , Pancreatite , Humanos , Animais , Ratos , Pancreatite/terapia , Células Acinares , Fator de Necrose Tumoral alfa , Doença Aguda , Autofagia , Serina-Treonina Quinases TOR , Cordão Umbilical
3.
Langenbecks Arch Surg ; 408(1): 195, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37188992

RESUMO

PURPOSE: To analyze the benefits of laparoscopic common bile duct exploration and laparoscopic cholecystectomy (LCBDE + LC) versus endoscopic retrograde cholangiopancreatography and/or endoscopic sphincterotomy following laparoscopic cholecystectomy (ERCP/EST + LC) for difficult common bile duct stones combined with gallstones. METHODS: A retrospective analysis of consecutive patients with difficult common bile duct stones combined with gallstones in three hospitals from January 2016 to January 2021 was performed. RESULTS: ERCP/EST + LC contributed to reducing postoperative drainage time. However, LCBDE + LC showed a higher rate of complete clearance, along with lower postoperative hospital stays, expenses and incidence of postoperative hyperamylasemia, pancreatitis, re-operation and recurrence. In addition, LCBDE + LC showed safe and feasible performance in the elderly and patients with previous upper abdominal surgery. CONCLUSION: It is an effective and safe method for LCBDE + LC for difficult common bile duct stones combined with gallstones.


Assuntos
Colecistectomia Laparoscópica , Coledocolitíase , Cálculos Biliares , Humanos , Idoso , Cálculos Biliares/complicações , Cálculos Biliares/cirurgia , Estudos Retrospectivos , Coledocolitíase/complicações , Coledocolitíase/cirurgia , Colecistectomia , Colangiopancreatografia Retrógrada Endoscópica/métodos , Colecistectomia Laparoscópica/efeitos adversos , Colecistectomia Laparoscópica/métodos , Ducto Colédoco/cirurgia
4.
Environ Toxicol ; 38(6): 1251-1264, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36947456

RESUMO

BACKGROUND: Pancreatic cancer (PC) is an aggressive malignancy with poor prognosis. Accumulating studies have showed that long non-coding RNA (lncRNA) is a crucial regulator in various tumorigenesis and progression including PC. This research aims to explore the roles and molecular mechanism of lncRNA cancer susceptibility candidate 9 (CASC9) in PC. METHODS: The expression levels of lncRNA CASC9 and miR-497-5p were evaluated in PC tissues and paired adjacent healthy tissues by quantitative real-time PCR. PC cell lines were transfected with lentivirus targeting lncRNA CASC9, and cells proliferation, migration and invasion tests were conducted. Dual luciferase reporter assays were also carried out to explore the relationship between lncRNA CASC9, miR-497-5p and Cyclin D1 (CCND1). RESULTS: LncRNA CASC9 was significantly up-regulated in PC tissues, while miR-497-5p expression was down-regulated. Down-regulation of lncRNA CASC9 in PC cells can significantly suppress the cell aggressiveness both in vitro and in vivo; moreover, knock-down of miR-497-5p could neutralize this impact. Additionally, the luciferase activity assay has assured that CCND1 was a downstream target of miR-497-5p. CONCLUSION: LncRNA CASC9 can promote the PC progression by modulating miR-497-5p/CCND1 axis, which is potential target for PC treatment.


Assuntos
MicroRNAs , Neoplasias Pancreáticas , RNA Longo não Codificante , Humanos , MicroRNAs/genética , MicroRNAs/metabolismo , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Linhagem Celular Tumoral , Ciclina D1/genética , Ciclina D1/metabolismo , Neoplasias Pancreáticas/genética , Proliferação de Células/genética , Movimento Celular/genética , Regulação Neoplásica da Expressão Gênica/genética , Neoplasias Pancreáticas
5.
J Surg Res ; 270: 486-494, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34800795

RESUMO

BACKGROUND: The eighth edition of the American Joint Committee on Cancer (AJCC) staging manual's TNM staging classification for gastric neuroendocrine tumors has been shown to have poor prognostic discriminability. The aim of present study was to propose a modified T-stage classification, and externally validate its performance in a separate population data registry. METHODS: A modified T-stage classification with tumor size and extent of tumor invasion was generated from the National Cancer Database between 2004 and 2014 (n = 1249). External validation was performed using the Surveillance, Epidemiology, and End Results registry between 1973 and 2013 (n = 539). RESULTS: In the National Cancer Database population, using the AJCC T-stage classification, the 5-y survival rates were 85.7%, 80.8%, 64.5%, and 46.1% in T1, T2, T3, and T4 patients respectively (P < 0.001). These rates were more contrasting with the modified T-stage (mT) classification at 87.0%, 78.2%, 59.0%, and 40.3% respectively (P < 0.001). When patients within each of the AJCC T stages were stratified by mT stages, significant survival heterogeneity was observed within each of the AJCC T2 to T4 stages (P < 0.01). Conversely, when mT stages were stratified by AJCC T stage, no survival difference was observed in any of the mT stages (P > 0.05). The same analyses were performed using Surveillance, Epidemiology, and End Results data, and all the observed results were validated. CONCLUSION: The current AJCC T stage classification categorizes patients into groups with heterogenous prognosis, thus failing to serve as an effective staging tool. A modified T-stage classification demonstrated significantly improved stratification for patients with gastric neuroendocrine tumors.


Assuntos
Tumores Neuroendócrinos , Neoplasias Gástricas , Humanos , Estadiamento de Neoplasias , Tumores Neuroendócrinos/patologia , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
6.
Surg Endosc ; 36(2): 1053-1063, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-33650005

RESUMO

BACKGROUND: Previous upper abdominal surgery (PUAS) is considered a contraindication to laparoscopic surgery. Whether LCBDE-PC is feasible and beneficial for patients with PUAS remains unclear. This study aimed to evaluate the feasibility and benefits of LCBDE-PC for patients with PUAS. METHODS: From June 2011 to September 2019, 1167 patients who underwent laparoscopic procedures for choledocholithiasis were reviewed retrospectively. Perioperative outcomes were compared between patients with and without PUAS in un-matched and matched cohorts. RESULTS: LCBDE-PC was performed successfully in 88.3% of patients with PUAS, and 92.5% of patients without PUAS (P > 0.05). Multivariate analysis showed that PUAS was not a risk factor that affected successful performance of LCBDE-PC. Although a higher rate of conversion to open surgery and longer operative time were observed in patients with PUAS, no significant differences were found between patients with and without PUAS in multivariate and propensity score analysis (P > 0.05). A predictive nomogram for LCBDE-PC failure was developed based on potential predictors from the least absolute shrinkage and selection operator (LASSO) regression model. Successful performance of LCBDE-PC was associated with operative time. A linear regression model for operative time showed impacted stone in the CBD and intraoperative laser use was the most important factor in determining the operative time. CONCLUSION: LCBDE-PC is feasible and beneficial for patients with PUAS. However, patients with PUAS with a high possibility of LCBDE-PC failure from the nomogram and a longer operative time from the linear regression model should be cautious when undergoing LCBDE-PC.


Assuntos
Colecistectomia Laparoscópica , Coledocolitíase , Laparoscopia , Colecistectomia Laparoscópica/efeitos adversos , Coledocolitíase/cirurgia , Ducto Colédoco/cirurgia , Conversão para Cirurgia Aberta , Humanos , Laparoscopia/métodos , Tempo de Internação , Estudos Retrospectivos
7.
Surg Endosc ; 36(1): 718-727, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-33619595

RESUMO

BACKGROUND: Laparoscopic common bile duct exploration (LCBDE) has gained wide popularity for the treatment of choledocholithiasis. However, it remains unclear whether LCBDE is a better alternative option for the patients with difficult biliary stones. Thus, the aim of the present study was to explore the safety and efficacy of LCBDE for these patients by retrospectively analyzing our data and combing with literature review. METHODS: Between September 2011 and February 2019, 1064 consecutive patients who underwent LCBDE at Shanghai Tenth People's Hospital were reviewed. The clinical data of patients with difficult biliary stones were selected and retrospectively analyzed. RESULTS: Of these patients, 334 cases were confirmed with difficult biliary stones, and the overall complete stone clearance rate was 98.8% (330/334). 34 cases (10.2%) were performed with laser lithotripsy. A total of 296 patients (88.6%) underwent primary closure of common bile duct, and T-tube drainage was indwelled in 38 patients (11.4%). No bile duct injury, bleeding, perforation and surgery-related deaths were observed. The overall morbidity rate was 6.6%. 16 cases (4.8%) occurred in bile leakage with primary closure procedure, and all of them were managed successfully with conservative therapy. The median follow-up period was 9 months with stone recurrence occurring in 9 patients (2.7%). There was no evidence of bile duct stricture in all cases. CONCLUSIONS: The current study suggests that LCBED is a considerable safe and effective option for the patients with difficult biliary stones. A randomized clinical trial is needed to further evaluate the benefit of LCBDE in this subgroup.


Assuntos
Coledocolitíase , Colestase , Laparoscopia , China , Coledocolitíase/cirurgia , Colestase/cirurgia , Ducto Colédoco/cirurgia , Humanos , Laparoscopia/métodos , Estudos Retrospectivos
8.
Med Res Rev ; 41(4): 2474-2488, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33840113

RESUMO

Pancreatitis is a common gastrointestinal disease with no effective therapeutic options, particularly for cases of severe acute and chronic pancreatitis (CP). Mesenchymal stromal cells (MSCs) are multipotent cells with diverse biological properties, including directional migration, paracrine, immunosuppressive, and antiinflammatory effects, which are considered an ideal candidate cell type for repairing tissue damage caused by various pathogenies. Several researchers have reported significant therapeutic efficacy of MSCs in animal models of acute and CP. However, the specific underlying mechanisms are yet to be clarified and clinical application of MSCs as pancreatitis therapy has rarely been reported. This review mainly focuses on the potential and challenges in clinical application of MSCs for treatment of acute and CP, along with discussion of the underlying molecular mechanisms.


Assuntos
Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais , Pancreatite Crônica , Animais , Pancreatite Crônica/terapia
9.
Cytotherapy ; 21(2): 162-174, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30600195

RESUMO

BACKGROUND AND AIMS: It has been previously verified that mesenchymal stromal cells (MSCs) have a good therapeutic effect on severe acute pancreatitis (SAP) and the potential for regeneration of damaged pancreatic tissue, but the exact molecular mechanism remains unclear. In this study, we demonstrated the therapeutic effect of bone morrow MSCs (BMSCs) on SAP, probably by targeting heme oxygenase-1 (HO-1). METHODS: Six hours after SAP induction, either phosphate-buffered saline (PBS) or BMSCs were transfused into the caudal vein of rats, zinc protoporphyrin (ZnPP) was administered intraperitoneally. Pancreatic pathological scoring, serum levels of amylase and inflammatory factors, as well as levels of reactive oxygen species (ROS), malondialdehyde (MDA) and myeloperoxidase (MPO), superoxide dismutase (SOD) and catalase (CAT) activity in the pancreas were evaluated. RESULTS: Our data showed that BMSCs significantly reduce inflammation and oxidative stress, reduce apoptosis and promote angiogenesis of damaged pancreas. Moreover, BMSCs increased the level of HO-1 in the serum and pancreatic tissue in rats with SAP. In addition, the protective effect of BMSCs was partially neutralized by the HO-1 activity inhibitor ZnPP, suggesting a key role of HO-1 in the therapeutic effect of BMSCs on SAP. CONCLUSIONS: BMSCs ameliorated SAP, probably by inducing expression of HO-1, which can exert anti-inflammatory and anti-oxidant effects, reduce apoptosis and promote angiogenesis.


Assuntos
Heme Oxigenase (Desciclizante)/metabolismo , Transplante de Células-Tronco Mesenquimais , Estresse Oxidativo/fisiologia , Pancreatite/metabolismo , Pancreatite/terapia , Amilases/sangue , Animais , Apoptose , Catalase/metabolismo , Inflamação/metabolismo , Masculino , Malondialdeído/metabolismo , Neovascularização Fisiológica , Pancreatite/induzido quimicamente , Peroxidase/metabolismo , Ratos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/metabolismo , Superóxido Dismutase/metabolismo
10.
BMC Cancer ; 19(1): 1079, 2019 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-31706283

RESUMO

BACKGROUND: High perioperative morbidity, mortality, and uncertain outcome of surgery in octogenarians with proximal gastric carcinoma (PGC) pose a dilemma for both patients and physicians. We aim to evaluate the risks and survival benefits of different strategies treated in this group. METHODS: Octogenarians (≥80 years) with resectable proximal gastric carcinoma who were recommended for surgery were identified from National Cancer Database during 2004-2013. RESULTS: Patients age ≥ 80 years with PGC were less likely to be recommended or eventually undergo surgery compared to younger patients. Patients with surgery had a significantly better survival than those without surgery (5-year OS: 26% vs. 7%, p < 0.001), especially in early stage patients. However, additional chemotherapy (HR: 0.94, 95% CI: 0.82-1.08, P = 0.36) or radiotherapy (HR: 0.97, 95% CI: 0.84-1.13, P = 0.72) had limited benefits. On multivariate analysis, surgery (HR: 0.66, 95% CI: 0.51-0.86, P = 0.002) was a significant independent prognostic factor, while extensive surgery had no survival benefit (Combined organ resection: HR: 1.88, 95% CI: 1.22-2.91, P = 0.004; number of lymph nodes examined: HR: 0.99, 95% CI: 0.97-1.00, P = 0.10). Surgery performed at academic and research (AR) medical center had the best survival outcome (5-year OS: 30% in AR vs. 18-27% in other programs, P < 0.001) and lowest risk (30-day mortality: 1.5% in AR vs. 3.6-6.6% in other programs, P < 0.001; 90-day mortality: 6.2% in AR vs. 13.6-16.4% in other programs, P < 0.001) compared to other facilities. CONCLUSIONS: Less-invasive approach performed at academic and research medical center might be the optimal treatment for elderly patients aged ≥80 yrs. with early stage resectable PGC.


Assuntos
Neoplasias Gástricas/terapia , Fatores Etários , Idoso de 80 Anos ou mais , Quimioterapia Adjuvante , Bases de Dados Factuais , Feminino , Humanos , Masculino , Terapia Neoadjuvante , Estadiamento de Neoplasias , Modelos de Riscos Proporcionais , Radioterapia Adjuvante , Estudos Retrospectivos , Medição de Risco/estatística & dados numéricos , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/patologia , Neoplasias Gástricas/cirurgia , Taxa de Sobrevida , Resultado do Tratamento
11.
Pancreatology ; 19(2): 258-265, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30660392

RESUMO

BACKGROUND: Severe acute pancreatitis (SAP) is a high mortality disease, for which there is a lack of effective therapies. Previous research has demonstrated that bone marrow-derived mesenchymal stem cells (BMSCs), which have immunomodulatory and antioxidant properties, have potential for the treatment of SAP. It remains unclear, however, whether the free radical scavenger N-acetylcysteine (NAC) can enhance the therapeutic efficacy of BMSC transplantation in SAP. In this study, we investigated the effect of combining treatment with NAC and BMSCs in a rat model of SAP. METHODS: SAP was induced by injection of sodium taurocholate into the pancreatic duct and, after successful induction of SAP, the rats were treated with BMSCs and NAC, either singly or in combination. RESULTS: After 3 days, serum levels of amylase, proinflammatory factors, malondialdehyde, and reactive oxygen species were significantly decreased in animals treated with BMSCs or NAC, compared with vehicle-treated animals. In contrast, total glutathione, superoxide dismutase and catalase were markedly increased after treatment with BMSCs or NAC. However, oxidative stress markers and inflammatory factors were significantly improved in the SAP + BMSCs + NAC group compared with those in the SAP + NAC group and the SAP + BMSCs group. CONCLUSIONS: Combined NAC and BMSC therapy was found to alleviate oxidative stress damage to the pancreas and to inhibit the inflammatory response to a significantly greater extent than single therapy with either BMSCs or NAC. Because NAC enhances the therapeutic efficacy of BMSC transplantation in a rat model of SAP, combined therapy may provide a promising new approach for the treatment of SAP.


Assuntos
Acetilcisteína/uso terapêutico , Células da Medula Óssea , Transplante de Células-Tronco Mesenquimais , Pancreatite/induzido quimicamente , Pancreatite/tratamento farmacológico , Doença Aguda , Animais , Masculino , Estresse Oxidativo , Distribuição Aleatória , Ratos , Ratos Sprague-Dawley , Ácido Taurocólico/toxicidade
12.
BMC Surg ; 19(1): 2, 2019 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-30611267

RESUMO

BACKGROUND: The spontaneous rupture of the gallbladder is extremely rare, majority of ruptures occur secondary to traumatic injuries. Here, we report a case of spontaneous rupture of the gallbladder with probably cause of oral anticoagulants. CASE PRESENTATION: A 51-year-old woman presented to the emergency room with sudden-onset severe abdominal pain, as well as hypotension and low level of hemoglobin. Abdominal computed tomography (CT) scan showed a 2.5 cm filling defect and discontinuity in the wall of the gallbladder body, and a massive hematocele in the abdominal cavity. Past medical history was significant for hypertension and had been taking daily aspirin for the past three years because of interventional surgery for cerebral aneurysms, but no history of recent abdominal trauma or past episodes of biliary colic. The patient underwent an urgent laparoscopic abdominal exploration and the gallbladder was removed. The pathology just showed chronic cholecystitis and the patient recovered well. CONCLUSION: Long-term use of anticoagulants may increase the risk of gallbladder rupture and hemorrhage, which is a lethal condition. Rapid diagnosis and timely surgical intervention are the most important measures to treat the patient.


Assuntos
Anticoagulantes/efeitos adversos , Vesícula Biliar/patologia , Hemorragia/etiologia , Abdome/diagnóstico por imagem , Dor Abdominal/etiologia , Anticoagulantes/administração & dosagem , Colecistite/diagnóstico , Serviço Hospitalar de Emergência , Feminino , Humanos , Pessoa de Meia-Idade , Fatores de Risco , Ruptura Espontânea/etiologia , Tomografia Computadorizada por Raios X
13.
Surg Endosc ; 31(9): 3581-3589, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28039642

RESUMO

BACKGROUND: Laparoscopic common bile duct exploration (LCBDE) has gained wide popularity in the treatment of choledocholithiasis. Bile leakage remains a major cause of postoperative morbidity. The aim of this study was to report 5-year results of 500 LCBDEs and identify risk factors associated with bile leakage. METHODS: Five hundred consecutive LCBDEs performed in one institution from September 2011 to June 2016 were reviewed. Patients' clinical data were retrospectively collected and analyzed. Univariable and multivariable analysis of bile leakage was performed by logistic regression. RESULTS: We found stones (n = 388) or bile sludge (n = 71) in 459 patients (92%) on exploration, leaving 41 patients (8%) without stones. Operative time was 128 min in the first 250 LCBDEs, and this decreased to 103 min in the second 250 LCBDEs (P = 0.0004). Four hundred and eight (82%) procedures were completed with primary closure after choledochotomy; the rate of primary closure increased significantly in the second 250 patients compared with the first (88 vs 76%; P = 0.0005), whereas T-tube placement (2 vs 6%; P = 0.0225) and transcystic approach (7 vs 12%; P = 0.0464) decreased, respectively. Stone clearance was successful in 495 patients (99%). Overall morbidity was 5%, and bile leakage occurred in 17 patients (3.4%). Two patients died from bile leakage. The median follow-up was 24 months with stone recurrence occurred in two patients and bile duct stricture in one patient. Univariable analysis identified diameter of the common bile duct (CBD), stone clearance, and T-tube insertion as risk factors related to bile leakage. Multivariable analysis taking these three factors into account identified non-dilated CBD (risk ratio (RR) = 9.87; P = 0.007) and failure in stone clearance (RR = 11.88; P = 0.024) as significant risk factors. CONCLUSIONS: Bile leakage following LCBDE is associated with diameter of the CBD and stone clearance. LCBDE would be safer in proficient laparoscopic surgeons with a careful selection of patients.


Assuntos
Coledocolitíase/cirurgia , Ducto Colédoco/cirurgia , Laparoscopia/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Bile , Coledocolitíase/diagnóstico , Coledocolitíase/fisiopatologia , Ducto Colédoco/fisiopatologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
14.
Cancer Cell Int ; 13(1): 68, 2013 Jul 08.
Artigo em Inglês | MEDLINE | ID: mdl-23834902

RESUMO

BACKGROUND: MicroRNAs are a class of small non-coding RNAs that play an important role in various human tumor initiation and progression by regulating gene expression negatively. The aim of this study was to investigate the effect of miR-214 on cell proliferation, migration and invasion, as well as the functional connection between miR-214 and PTEN in gastric cancer. METHODS: miR-214 and PTEN expression was determined in gastric cancer and matched normal tissues, and human gastric cancer cell lines by quantitative real-time PCR. The roles of miR-214 in cell proliferation, migration and invasion were analyzed with anti-miR-214 transfected cells. In addition, the regulation of PTEN by miR-214 was evaluated by Western blotting and luciferase reporter assays. RESULTS: miR-214 was noted to be highly overexpressed in gastric cancer tissues and cell lines using qRT-PCR. The expression level of miR-214 is significantly associated with clinical progression and poor prognosis according to the analysis of the clinicopathologic data. We also found that the miR-214 levels are inversely correlated with PTEN in tumor tissues. And PTEN expression level is also associated with metastasis and invasion of gastric cancer. In addition, knockdown of miR-214 could significantly inhibit proliferation, migration and invasion of gastric cancer cells. Moreover, we demonstrate that PTEN is regulated negatively by miR-214 through a miR-214 binding site within the 3'-UTR of PTEN at the posttranscriptional level in gastric cancer cells. CONCLUSIONS: These findings indicated that miR-214 regulated the proliferation, migration and invasion by targeting PTEN post-transcriptionally in gastric cancer. It may be a novel potential therapeutic agent for gastric cancer.

15.
Wideochir Inne Tech Maloinwazyjne ; 18(1): 99-107, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37064567

RESUMO

Introduction: Primary closure (PC) following laparoscopic common bile duct exploration (LCBDE) is increasingly becoming a safe and effective option for choledocholithiasis. However, whether T-tube drainage (TTD) is no longer needed for LCBDE remains under debate. Aim: To evaluate the safety and efficacy of PC and TTD following LCBDE, and discuss their indications for selection of the procedure, combined with a literature review. Material and methods: 826 consecutive patients who underwent LCBDE with PC or TTD at Shanghai Tenth People's Hospital were reviewed. The clinical data of postoperative outcomes were compared and analyzed. Propensity score matching (PSM) was used to adjust for potential baseline confounding. Results: Of these patients, 796 underwent PC and 30 underwent TTD. Twenty-eight (3.52%) cases occurred in bile leakage in PC, and all of them were treated successfully with conservative therapy. Additionally, there was no evidence of bile duct stricture and death in all PC cases. TTD was mainly performed in patients with a higher rate of cholangitis (50.00%), large stones (26.67%), impacted stones (23.33%) and laser lithotripsy (26.67%). After PSM, 23 cases with PC and TTD were included. In the PC group, the operative time, postoperative stay, hospital expenses and recurrence rate were significantly shorter or less than in the TTD group. However, there were no significant differences between the two groups in postoperative drainage time, complications, reoperations and bile duct stricture rate. Conclusions: PC following LCBDE is safe and effective for choledocholithiasis. TTD is a safe alternative method for bile duct closure in certain special cases, such as acute cholangitis, large stones, impacted stones, and laser lithotripsy.

16.
Tissue Eng Part A ; 29(23-24): 607-619, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37565286

RESUMO

Severe acute pancreatitis (SAP) is a common abdominal emergency with a high mortality rate and a lack of effective therapeutic options. Although mesenchymal stem cell (MSC) transplantation is a potential treatment for SAP, the mechanism remains unclear. It has been suggested that MSCs may act mainly through paracrine effects; therefore, we aimed to demonstrate the therapeutic efficacy of extracellular vesicles (EVs) derived from human umbilical cord mesenchymal stem cells (UCMSCs) for SAP. Na-taurocholate was used to induce a rat SAP model through retrograde injection into the common biliopancreatic duct. After 72 h of EVs transplantation, pancreatic pathological damage was alleviated, along with a decrease in serum amylase activity and pro-inflammatory cytokine levels. Interestingly, when UCMSCs were preconditioned with 10 ng/mL tumor necrosis factor alpha (TNF-α) for 48 h, the obtained EVs (named TNF-α-EVs) performed an enhanced efficacy. Furthermore, both animal and cellular experiments showed that TNF-α-EVs alleviated the necroptosis of acinar cells of SAP through RIPK3/MLKL axis. In conclusion, our study demonstrated that TNF-α-EVs were able to enhance the therapeutic effect on SAP by inhibiting necroptosis compared to normal EVs. This study heralds that TNF-α-EVs may be a promising therapeutic approach for SAP in the future.


Assuntos
Vesículas Extracelulares , Células-Tronco Mesenquimais , Pancreatite , Ratos , Humanos , Animais , Pancreatite/terapia , Pancreatite/patologia , Fator de Necrose Tumoral alfa , Células Acinares/patologia , Doença Aguda , Necroptose , Modelos Animais de Doenças , Vesículas Extracelulares/patologia , Células-Tronco Mesenquimais/patologia , Cordão Umbilical
17.
Ann Gastroenterol Surg ; 7(5): 772-783, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37663961

RESUMO

Background: Laparoscopic common bile duct exploration with primary closure (LCBDE-PC) exhibits more benefits than other surgeries for patients with choledocholithiasis. It remains unclear whether it is feasible for and beneficial to elderly individuals. This study aimed to clarify and stratify elderly patients who would benefit from LCBDE-PC. Methods: A retrospective study of 1240 patients with choledocholithiasis who underwent laparoscopic procedures between 2011 and 2019 was conducted. Patients were divided into the young group (<65 years old, n = 708) and the elderly group (≥65 years old, n = 532). Perioperative outcomes were compared between the two groups. Results: Laparoscopic common bile duct exploration with primary closure was successfully performed in 90.20% of the elderly and 94.20% of the young. No significant differences were observed between the two groups regarding reoperation, postoperative bile leakage, residual stones, drainage removal, and postoperative mortality. Compared with the young, the elderly had longer postoperative hospital stay (p = 0.035) and delayed postoperative eating time (p = 0.036) in the matched cohort. Independent risk factors for failed LCBDE-PC were preoperative pancreatitis (p = 0.018), year of the surgeon's experience (p = 0.008), preoperative C-reactive protein level (p = 0.034), preoperative total bilirubin (p = 0.021), impacted common bile duct (CBD) stones (p = 0.006), blood loss (p = 0.001), and edema of the CBD (p = 0.001). A novel nomogram for predicting failed LCBDE-PC in elderly individuals exhibited a sufficient discriminative ability according to the estimated area under the curve (AUC) of 0.869 (95% CI: 0.817-0.921, p < 0.01). Conclusion: Laparoscopic common bile duct exploration with primary closure is safe, feasible, and effective for elderly individuals with choledocholithiasis. Elderly patients with a high risk of failed LCBDE-PC should be cautious of undergoing LCBDE-PC.

18.
Curr Protein Pept Sci ; 24(5): 436-446, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37132101

RESUMO

Background: Intrahepatic cholangiocarcinoma (ICC) is a highly aggressive malignancy with a poor prognosis. Aspartate ß-hydroxylase (ASPH) is an α-ketoglutarate-dependent dioxygenase involved in the post-translational hydroxylation of target proteins. ASPH has been demonstrated to be upregulated in ICC, yet its role remains to be elucidated. This study aimed to investigate the potential function of ASPH in ICC metastasis. Methods: Survival curves for the overall survival of pan-cancer data from The Cancer Genome Atlas (TCGA) database was depicted using the Kaplan-Meier method and compared using the log-rank test. The expression of ASPH, glycogen synthase kinase (GSK)-3ß, phosphorylation GSK-3ß (p-GSK-3ß), epithelial-mesenchymal transition (EMT) biomarkers, and sonic hedgehog (SHH) signaling elements in ICC cell lines was analyzed by western blot. Wound healing and transwell assays were conducted to examine the effects of ASPH knockdown and overexpression on cell migration and invasion. An immunofluorescence assay was conducted to evaluate the expression of glioma-associated oncogene 2 (GLI2), GSK-3ß and ASPH. The effect of ASPH on tumor in vivo was analyzed using a nude mouse xenograft model. Results: Pan-cancer data showed that expressed ASPH was significantly correlated with a poor prognosis in patients. ASPH knockdown inhibited the migration and invasion of human ICC cells lines QBC939 and RBE. ASPH overexpression contributed to an increase in the N-cadherin and Vimentin, resulting in the promotion of the EMT process. The p-GSK-3ß levels decreased in the presence of ASPH overexpression. The overexpression of ASPH led to an upregulation of the expression of SHH signaling elements GLI2 and SUFU. The results of in vivo experiments with a lung metastasis model in nude mice with ICC cell line RBE are consistent with these results. Conclusion: ASPH accelerated metastasis of ICC cells by facilitating EMT via a GSK-3ß/SHH/GLI2 axis-dependent manner, in which phosphorylation of GSK-3ß was downregulated and the SHH signaling pathway was activated.


Assuntos
Ácido Aspártico , Colangiocarcinoma , Animais , Camundongos , Humanos , Glicogênio Sintase Quinase 3 beta/genética , Glicogênio Sintase Quinase 3 beta/metabolismo , Glicogênio Sintase Quinase 3 beta/farmacologia , Ácido Aspártico/farmacologia , Linhagem Celular Tumoral , Camundongos Nus , Proteínas Hedgehog/genética , Proteínas Hedgehog/metabolismo , Transdução de Sinais , Fatores de Transcrição/metabolismo , Oxigenases de Função Mista/genética , Oxigenases de Função Mista/metabolismo , Oxigenases de Função Mista/farmacologia , Colangiocarcinoma/genética , Transição Epitelial-Mesenquimal , Movimento Celular , Proteínas de Ligação ao Cálcio/metabolismo , Proteínas de Membrana/metabolismo
19.
Front Endocrinol (Lausanne) ; 13: 1026791, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36246883

RESUMO

Background: Gamma-glutamyl transferase (GGT) and high-density lipoprotein cholesterol (HDL-C) have been proven to be valuable predictors of type 2 diabetes mellitus (T2DM). The aim of this study was to investigate the association between GGT/HDL-C ratio and incident T2DM. Methods: The study retrospectively analyzed 15453 participants from 2004 to 2015. Cox proportional hazards regression models and Kaplan-Meier curves were used to elucidate the effect of GGT/HDL-C ratio on T2DM. Restricted cubic spline (RCS) analysis was performed to explore any non-linear correlation between GGT/HDL-C ratio and the risk of T2DM. The predictive performance of GGT, HDL-C and GGT/HDL-C ratio for T2DM was evaluated utilizing receiver-operating-characteristic (ROC) curves. Results: During a median follow-up of 5.39 years, 373 cases of incident T2DM were observed. Kaplan-Meier curves showed that the cumulative probabilities of T2DM increased in the participants with higher GGT/HDL-C ratio significantly (P < 0.001). Cox models further clarified that high GGT/HDL-C ratio was an independent risk factor for T2DM (HR = 1.01, 95% CI = 1.00-1.01, P = 0.011). Linear positive correlation between GGT/HDL-C ratio and the risk of T2DM was demonstrated through RCS analysis. In the ROC analysis, GGT/HDL-C ratio (AUC = 0.75, 95% CI = 0.73-0.77) showed competitive role in the prediction of T2DM compared with single GGT and HDL-C. Conclusions: The GGT/HDL-C ratio could serve as a valuable predictor of T2DM, and the risk of T2DM increases in the condition of higher GGT/HDL-C ratio.


Assuntos
Diabetes Mellitus Tipo 2 , gama-Glutamiltransferase , HDL-Colesterol , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Humanos , Incidência , Estudos Retrospectivos
20.
Front Public Health ; 10: 941284, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35910886

RESUMO

Background: Gastrointestinal (GI) cancers are an important component of the tumor. This study aimed to investigate the burden of six major GI cancers in China and globally from 1990 to 2019. Methods: We conducted a cross-sectional study based on the Global Burden of Disease Study (GBD) 2019. Indicators on incidence, deaths, disability-adjusted life-years (DALYs), and risk factors for esophageal, stomach, liver, pancreatic, colon and rectum, and gallbladder and biliary tract cancers were collected and analyzed for time trends. The contribution of each cancer and the proportion of cases in China among global cases were further reported. Results: Global incidence cases, death cases, and DALYs of GI cancers showed an overall ascending trend over the past 30 years, but there was temporal and geographical variation across cancer types. By 2019, colon and rectum cancer had overtaken stomach cancer as the most burdensome GI cancer globally. However, stomach cancer narrowly continued to be the most burdensome GI in China. In addition, the proportion of incidence and death cases of stomach, pancreatic, colon and rectum, and gallbladder and biliary tract cancers among global cases had further increased. It was noteworthy that the burden of liver cancer in China has been alleviated significantly. Conclusion: GI cancers remain a major public health problem in China and globally. Despite the temporal and geographic diversity of different cancers, targeted primary and secondary prevention are still necessary for the future to face these unknown challenges.


Assuntos
Neoplasias Gastrointestinais , Neoplasias Gástricas , Estudos Transversais , Neoplasias Gastrointestinais/epidemiologia , Carga Global da Doença , Humanos , Anos de Vida Ajustados por Qualidade de Vida
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