Advances in clinical application of laparoscopic totally extraperitoneal herniorraphy / 中华消化外科杂志

Inguinal hernia is a common surgical disease, and most patients need surgical treatment. In recent years, minimally invasive surgery based on laparoscopy has been popularized in hernia surgery. With the release of clinical guidelines, the progress of instruments and materials, the update of treatment concepts and anatomical knowledge, laparoscopic inguinal hernia repair, especially laparoscopic total extraperitoneal hernia repair (TEP), is developing towards a more accurate and minimally invasive direction. Based on literatures in recent years and combined with clinical practice, the authors explore the advances in clinical application of laparoscopic TEP.

Lymph node dissection and key technical points in 4K laparoscopic radical resection of transverse colon cancer / 中华消化外科杂志

Laparoscopic radical resection of transverse colon cancer is a difficult operation, which is featured by large operation area, multiple steps, and many clinical anatomical variations. It requires the concept of complete mesocolic excision. Because of its absolute high-definition picture restoration, the 4K laparoscope can effectively assist in the identification, protection and severance of blood vessels during the operation, and assist in judging the fascia space of the operation. After entering Toldt fascial space through the intermediate approach guided by the superior mesenteric vein, the left, right transverse colon and lower area of mesangium are completely dissected, the upper area of colon, hepatic and splenic flexure are sepearted. The authors summarize practical experiences, investigate the extent of lymph node dissection in 4K laparoscopic radical resection of transverse colon cancer and share surgical experience.

Circular RNA-ZFR Inhibited Cell Proliferation and Promoted Apoptosis in Gastric Cancer by Sponging miR-130a/miR-107 and Modulating PTEN / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: This study aimed to probe into the associations among circular RNA ZFR (circ-ZFR), miR-130a/miR-107, and PTEN, and to investigate the regulatory mechanism of circ-ZFR–miR-130a/miR-107–PTEN axis in gastric cancer (GC). MATERIALS AND METHODS: GSE89143 microarray data used in the study were acquired from publicly available Gene Expression Omnibus database to identify differentially expressed circular RNAs inGC tissues. The expressions of circ-ZFR, miR-130a, miR-107, and PTEN were examined by real-time reverse transcription polymerase chain reaction, while PTEN protein expression was measured by western blot. The variation of GC cell proliferation and apoptosis was confirmed by cell counting kit-8 assay and flow cytometry analysis. The targeted relationships among circZFR, miR-130a/miR-107, and PTEN were predicted via bioinformatics analysis and demonstrated by dual-luciferase reporter assay and RNA immunoprecipitation assay. The impact of ZFR on gastric tumor was further verified in xenograft mice model experiment. RESULTS: Circ-ZFR and PTEN were low-expressed whereas miR-107 and miR-130a were highexpressed in GC tissues and cells. There existed targeted relationships and interactions between miR-130a/miR-107 and ZFR/PTEN. Circ-ZFR inhibited GC cell propagation, cell cycle and promoted apoptosis by sponging miR-107/miR-130a, while miR-107/miR-130a promoted GC cell propagation and impeded apoptosis through targeting PTEN. Circ-ZFR inhibited cell proliferation and facilitated apoptosis in GC by sponging miR-130a/miR-107 and modulating PTEN. Circ-ZFR curbed GC tumor growth and affected p53 protein expression in vivo. CONCLUSION: Circ-ZFR restrained GC cell proliferation, induced cell cycle arrest and promoted apoptosis by sponging miR-130a/miR-107 and regulating PTEN.

Expression of TLR9 mRNA in peripheral blood mononuclear cells of patients with acute pancreatitis / 重庆医学

Objective To investigate the expression of TLR9 mRNA of peripheral blood mononuclear cells (PBMCs) in patients with acute pancreatitis .Methods Fifty two AP patients with the disease duration in 24 h were collected ,peripheral EDTAK2 coag‐ulation vein blood were collected on the first ,third and fifth day ,then plasma were cryop reserved to detect pancreatic elastase , proinflammatory cytokines and anti‐inflammatory cytokines .Then the peripheral EDTAK2 coagulation vein blood two to three months after treatment were collected in the same method to undertake these tests ,and act as the reference level value .Peripheral blood was collected from 36 acute pancreatitis patients .Three months later ,peripheral blood was collected again from these 36 peo‐ple as controls .PBMCs were isolated by Ficoll‐Hypaque gradient centrifugation .RT‐PCR was adopted to determine the relative con‐tent of the expression of TLR9 mRNA of the PBMCs .Results The relative content of expression of TLR9 mRNA were significant‐ly up‐regulated in the patients with acute pancreatitis ,compared with that of controls (P<0 .05) .The up‐regulated expression of TLR9 mRNA was related to expression of TNF‐a and IL‐1 .Conclusion The up‐regulated expression of TLR9 mRNA in acute pan‐creatitis patients indicates that infective factors might be mediated by TLR 9 .

Special Training of Postgraduates Majored in General Surgery / 昆明医科大学学报

Objective To discuss how to improve the cultivation level of postgraduates majored in general surgery by special training.Methods We retrospectively analysed the work performance of 78 postgraduates in the first year after graduated from the general surgery of our hospital during 2005 to 2009. The employer’s evaluation of the postgraduates was compared between before and after special training.Results 22 postgraduates didn’ t receive special training,and 56 postgraduates receive special training. The clinical skills and clinical thinking ability of the postgraduates received special training were much better than the postgraduates who didn’ t receive special training, there was a significant difference between two groups ( P<0.05 ) . Conclusion The special training can significantly improve the clinical skills and clinical thinking ability of the postgraduates majored in general surgery in our hospital.

The role of digital subtraction angiography in the diagnosis and treatment of small intestinal tumor with massive lower gastrointestinal hemorrhage / 肿瘤研究与临床

Objective To discuss the diagnostic value of DSA for massive hemorrhage in lower gastrointestinal tract resulting from tumour. Methods 24 patients with massive lower gastrointestinal hemorrhage were performed DSA and then operated as tumour. Results Among 24 patients, 17 cases demonstrated direct signs of hemorrhage, 9 cases visible turnout vessels; 24 patients all showed clumping tumour-specifie dyeing. Conclusion DSA is of great value to determining the location and qualitation of the massive lower gastrointestinal hemorrhage resuhing from tumours.