Prognostic factors of weight loss after sleeve gastrectomy: Multi centre study in Spain and Portugal.

Introduction: Sleeve gastrectomy (SG) has become a technique in its own right although a selective or global indication remains controversial. The weight loss data at 5 years are heterogeneous. The aim of the study is to identify possible prognostic factors of insufficient weight loss after SG.

Prognostic Factors for Morbimortality in Sleeve Gastrectomy. The Importance of the Learning Curve. A Spanish-Portuguese Multicenter Study.

Background: Complications in sleeve gastrectomy (SG) can cast a shadow over the technique's good results and compromise its safety. The aim of this study is to identify risk factors for complications, and especially those that can potentially be modified to improve safety.

Methods: A retrospective multicenter cohort study was carried out, involving the participation of 29 hospitals.

Effect of vitamin C administration on neutrophil apoptosis in septic patients after abdominal surgery.

Objective: To investigate the effect of parenteral administration of vitamin C on neutrophil apoptosis by determining Fas receptor expression and caspase-3, poly (ADP-ribose) polymerase (PARP), and Bcl-2 levels in neutrophils from septic abdominal surgery patients.

Study Design: Twenty septic abdominal surgery patients were studied in a prospective, randomized, double-blinded clinical trial. A group of healthy volunteers (n = 10) constituted a reference group for baseline parameter values.

Cellular mechanisms involved in the melatonin inhibition of HT-29 human colon cancer cell proliferation in culture.

The antiproliferative and proapoptotic properties of melatonin in human colon cancer cells in culture were recently reported. To address the mechanisms involved in these actions, HT-29 human colon cancer cells were cultured in RPMI 1640 medium supplemented with fetal bovine serum at 37 degrees C. Cell proliferation was assessed by the incorporation of [(3)H]-thymidine into DNA.

[Traumatic diaphragmatic rupture].

Traumatic diaphragmatic rupture is an infrequent lesion that can result from penetrating or blunt trauma to the abdomen or chest. Early diagnosis continues to be a challenge and this type of injury is associated with high morbidity and mortality. Preoperative diagnosis is difficult and a high level of suspicion, careful scrutiny of the chest x-ray, and early surgical treatment are required for successful management.

Selective CCK-A but not CCK-B receptor antagonists inhibit HT-29 cell proliferation: synergism with pharmacological levels of melatonin.

Some data suggest that cholecystokinin (CCK) receptor agonists stimulate the growth of colon cancer. Melatonin, an endogenous indoleamine with strong antioxidant properties, displays antiproliferative and proapoptotic properties both in vivo or in vitro in several types of tumors. We used HT-29 human colon cancer cells, expressing CCK receptors, to test the antiproliferative effects of several antagonists of CCK-A and/or CCK-B and their possible synergism with melatonin.