منابع مشابه
SCFA transport in rat duodenum.
Bacterial or ingested food-derived short-chain fatty acids (SCFAs) are present in the duodenal lumen. Acetate, the most abundant SCFA in the foregut lumen, is absorbed immediately after ingestion, although the mechanism by which this absorption occurs is not fully understood. We investigated the distribution and function of candidate SCFA transporters in rat duodenum. The Na(+)-coupled monocarb...
متن کاملAcid-sensing pathways of rat duodenum.
We tested the hypothesis that the duodenal hyperemic response to acid occurs through activation of capsaicin-sensitive afferent nerves with subsequent release of vasodilatory substances such as calcitonin gene-related peptide (CGRP) and nitric oxide (NO). Laser-Doppler flowmetry was used to measure duodenal blood flow in urethan-anesthetized rats. Duodenal mucosa was superfused with pH 7.0 buff...
متن کاملModulation of urea transport across sheep rumen epithelium in vitro by SCFA and CO2.
Urea transport across the gastrointestinal tract involves transporters of the urea transporter-B group, the regulation of which is poorly understood. The classical stimulatory effect of CO(2) and the effect of short-chain fatty acids (SCFA) on the ruminal recycling of urea were investigated by using Ussing chamber and microelectrode techniques with isolated ruminal epithelium of sheep. The flux...
متن کاملHistamine-induced villous damage in the rat duodenum.
A single s.c. administration of histamine dose-dependently (5-20 mg/kg) induced villous damage of the proximal duodenum in 24-hr fasting rats. Time course studies indicate that histamine (20 mg/kg) induced severe exfoliation of the epithelial cells at the villous tips of the duodenal mucosa 0.5 hr after administration. The damage, however, tended to heal with time, and recovery was nearly compl...
متن کاملInnervation especially sensory innervation of duodenum in white rat.
perfection of staining methods, the results were tainted with defects. In 1932, the epochal discovery of the terminal formation of the vegetative nerve fibres, that is the terminalreticulum, was made by Stohr1) and Reiser,2) after a painstaking labor. Subsequent observations by many investigators on the subject led to a remarkable illustration of the problem. On the other hand, the sensory nerv...
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ژورنال
عنوان ژورنال: American Journal of Physiology-Gastrointestinal and Liver Physiology
سال: 2015
ISSN: 0193-1857,1522-1547
DOI: 10.1152/ajpgi.00298.2014