Colonic infusion of short chain fatty acids (SCFAs) is trophic to rat jejunum and is associated with raised jejunal gastrin concentration. This study examined the hypothesis that the jejunal trophic effects of colonic SCFAs are mediated in part by gastrin. Forty six adult rats underwent caecectomy to reduce endogenous production of SCFA, ileocolonic anastomosis, and placement of a colonic infus...

OBJECTIVE To compare the resistance of anastomosed and intact jejunal segments of rats submitted to administration of vitamin C in different postoperative periods. METHODS Fifty Wistar rats underwent enterotomy followed by end-to-end anastomosis of the jejunal segment, 10 cm from the duodenojejunal flexure. The animals were divided into two groups (n = 25): Group I--control; Group II--adminis...

The purpose of this study was to determine the locus of interaction of angiotensin peptides with the sympathetic nervous system leading to alterations in jejunal sodium and water transport. At low physiological doses, angiotensin II (AII) stimulates jejunal sodium and water absorption, while at high doses peptide inhibits absorption and/or stimulates secretion. Both the stimulation of jejunal t...

BACKGROUND Free jejunal transfer has a high success rate, but if vascular thrombosis occurs, the salvage of failing flap with reanastomosis is difficult. This study described a combined deltopectoral (DP) and pectoralis major musculocutaneous (PMMC) flap 2-step technique for cervical esophageal reconstruction after free-jejunal-flap necrosis. METHODS In step 1, the detection of free jejunal f...

Twenty-one patients with dermatitis herpetiformis have been on a gluten free diet and regularly followed up for at least one year (mean four years). Eighteen patients had a 'flat' mucosal appearance (grade III), one patient had moderately severe mucosal abnormality (grade II), one patient had mild mucosal abnormality (grade I), and one patient had a normal mucosal appearance (grade 0). On the d...

OBJECTIVES Lipomas are the second most common benign tumors of the small bowel, and most lipomas are asymptomatic. However, lipomas with diameters of >20 mm tend to be symptomatic, for example, to cause bleeding, obstructive jaundice, abdominal pain, intestinal obstruction, intussusception, and/or perforation. METHODS/RESULTS We report a case of massive gastrointestinal bleeding from a jejuna...

Other than in childhood, intussusception is unusual and nearly always caused by a structural and well demonstrable lesion. In contrast with the colon tract, the incidence of primary malignancies in the small bowel is very low. We report the case of a 51-year-old man presenting with jejunal intussusception due to a primary adenocarcinoma. To our knowledge, only a few similar cases have been repo...

An enterolith is an infrequent clinical entity. It is generally diagnosed on imaging or at surgery. It is usually associated with underlying benign lesions like intestinal tuberculosis or Crohn's disease. Here, we report an unusual case of an elderly lady presenting with an acute small-bowel obstruction. On admission, her abdominal X-ray revealed a radio-opacity obstructing the jejunum. Her sub...

Twelve crossbred steers (351 +/- 24 kg initial BW) were used to determine effects of high-Se wheat on visceral tissue mass, intestinal cell growth, and intestinal cellularity and vascularity. Steers were allotted randomly by BW to one of two treatments consisting of 75% concentrate diets that supplied 1) adequate Se concentration (7 to 12 microg x kg x BW(-1) x d(-1)) or 2) high-Se concentratio...

BACKGROUND Jejunal diverticulitis is one of the rare causes of acute abdomen generally seen in the elderly. Jejunal diverticulosis was defined as the herniation of the mucosa and the submucosa from the inside of the muscular layer of the bowel wall on the mesenteric side of the intestine. CASE REPORT We presented the intraoperative and pathological findings of a 69-year-old male patient who h...