Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0042961 (volvulus)
 4,305 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A radiological diagnosis of gastric volvulus (GV) was made in 11 of 576 consecutive upper gastrointestinal series at the University of Benin Teaching Hospital, Nigeria, over a two-year period. The clinical symptoms were thoracico-abdominal in three and abdominal in eight; these cases were evaluated as acute in three, acute upon chronic in two, and chronic in six. There was a significant delay in the diagnosis in all cases (except a neonate in the series), and no case was diagnosed on clinical grounds alone.THE PREDISPOSING FACTORS (EXCEPT THE CLINICAL MISDIAGNOSIS OF THE NEONATE) IN SIX OF THE SEVEN CASES THAT CAME TO SURGERY WERE: diaphragmatic hernia and perigastritis (left lung abscess, thoracic empyema), arteriomesenteric compression of the duodenum in pregnancy (peptic ulcer), splenomegaly (hepatosplenomegaly, ascites, esophageal varices), previous gastrojejunostomy (stomal ulcer, left subphrenic abscess) and two cases of intestinal malrotation with mesenteric abnormalities (small bowel obstruction in one and duodenal atresia in the other). In one idiopathic case, gastric outlet obstruction was clinically suspected prior to surgery. Thus, the putative rarity of GV in black Africans is not supported by this experience.Gastric volvulus is a clinico-radiologic entity that may present with a confusing thoracico-abdominal symptom complex. A greater awareness of the radiologic features is quintessential to an expeditious and usually successful surgical management that will avoid potentially serious complications. Negative surgical findings do not exclude GV as the underlying cause of acute abdomens necessitating emergency laparotomies.
 ...
PMID:Volvulus of the stomach: an African series and a review. 356 Feb 44

CFTR, or cystic fibrosis transmembrane conductance regulator, the gene product that is defective in cystic fibrosis, is present in the apical membrane of the epithelial cells from the stomach to the colon. In the foregut, the clinical manifestations are not directly related to the primary defect of the CFTR chloride channel. The most troublesome complaints and symptoms originate from the oesophagus as peptic oesophagitis or oesophageal varices. In the small intestinal wall, the clinical expression of CF depends largely on the decreased secretion of fluid and chloride ions, the increased permeability of the paracellular space between adjacent enterocytes and the sticky mucous cover over the enterocytes. As a rule, the brush border enzyme activities are normal and there is some enhanced active transport as shown for glucose and alanine. The results of continuous enteral feeding of CF patients clearly show that the small intestinal mucosa, in the daily situation, is not functioning at maximal capacity. Although CFTR expression in the colon is lower, the large intestine may be the site of several serious complications such as rectal prolapse, meconium ileus equivalent, intussusception, volvulus and silent appendicitis. In recent years colonic strictures, after the use of high-dose pancreatic enzymes, are being increasingly reported; the condition has recently been called CF fibrosing colonopathy. The CF gastrointestinal content itself differs mainly from the normal condition by the lower acidity in the foregut and the accretion of mucins and proteins, eventually resulting in intestinal obstruction, in the ileum and colon. Better understanding of the CF gastrointestinal phenotype may contribute to improvement of the overall wellbeing of these patients.
 ...
PMID:Gastrointestinal manifestations in cystic fibrosis. 886 67