The utility of intraoperative endoscopy to assist novice surgeons in the detection of gastric stenosis during laparoscopic sleeve gastrectomy.

Background: Laparoscopic sleeve gastrectomy (LSG) is a commonly performed bariatric surgery. Gastric stenosis and leaks are 2 major complications associated with LSG and revision surgery might be needed. Herein, we report our experience of intraoperative endoscopy (IOE) to evaluate stenosis and leaks during LSG.

A prospective, randomized trial of thrombin versus cyanoacrylate injection in the control of acute gastric variceal hemorrhage.

Background: Acute gastric variceal hemorrhage (AGVH) is a serious complication of portal hypertension. Endoscopic cyanoacrylate glue injection is standard therapy for acute hemostasis; however, it may be associated with serious complications. The role of thrombin injection has not been confirmed.

Downregulation of SUN2, a novel tumor suppressor, mediates miR-221/222-induced malignancy in central nervous system embryonal tumors.

Embryonal tumors of the central nervous system represent a highly malignant tumor group of medulloblastoma (MB), atypical teratoid/rhabdoid tumor (AT/RT) and primitive neuroectodermal tumor that frequently afflict children. AT/RT is often misdiagnosed as MB/primitive neuroectodermal tumor but with higher recurrence and lower survival rates. Pathogenesis of AT/RT is largely unknown.

Lymphatic absorption of quercetin and rutin in rat and their pharmacokinetics in systemic plasma.

Substances and macromolecules absorbed by the lymphatic system avoid hepatic first-pass effect and directly enter the blood circulation system. In this study, an anesthetized, mesenteric lymphatic/duodenum-cannulated rat model was used to investigate the role of lymphatic absorption with intraduodenally administered drugs. Quercetin and rutin were administered, respectively, at dosages of 30 and 300 mg/kg intraduodenally.

Treacle recruits RNA polymerase I complex to the nucleolus that is independent of UBF.

Mutations in treacle lead to Treacher Collins syndrome (TCS), an autosomal dominant disorder of craniofacial development. Treacle associates with upstream binding factor (UBF) to regulate rRNA gene (rDNA) transcription, but the precise mechanisms mediated by treacle remain elusive. Here we show that the central repeated domain of treacle binds with RNA polymerase I (Pol I), while that the treacle C-terminus is involved in rDNA promoter recognition and UBF recruitment.

Chromatin tethering effects of hNopp140 are involved in the spatial organization of nucleolus and the rRNA gene transcription.

The short arms of five human acrocentric chromosomes contain ribosomal gene (rDNA) clusters where numerous mini-nucleoli arise at the exit of mitosis. These small nucleoli tend to coalesce into one or a few large nucleoli during interphase by unknown mechanisms. Here, we demonstrate that the N- and C-terminal domains of a nucleolar protein, hNopp140, bound respectively to alpha-satellite arrays and rDNA clusters of acrocentric chromosomes for nucleolar formation.

Heterogeneity of propagation of excitation in epicardium of pulmonary veins ostia in rabbit during cooling.

Objective: The purpose of this research was to study the propagation of the excitation wave along epicardium in the area of the pulmonary veins ostia in rabbit in normal conditions and while cooling.

Methods: The excitation wave spreading along epicardium in the area of pulmonary veins ostia in the left atrium at 36-37 degrees C and when cooling to 32 degrees C was studied by the method of electrocardiochronotopography in rabbit of Chinchilla species, five months age. The size of the registering surface of the electrode was 1.

Antidepressant administration modulates neural stem cell survival and serotoninergic differentiation through bcl-2.

The hippocampus has long been associated with learning, memory, and modulation of emotional responses. Previous studies demonstrated that stress-induced loss of hippocampal neurons may contribute to the pathogenesis of depression. The recent observations supported that antidepressant drugs increase the production of serotoninergic neurotransmitter and they play a critical role in the initiation of neurogenesis in the hippocampus.