Matched regulation of gastrointestinal performance in the Burmese python, Python molurus
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چکیده
منابع مشابه
Matched regulation of gastrointestinal performance in the Burmese python, Python molurus.
In Burmese pythons fasting and feeding cause dramatic regulation of gastric acid production and intestinal nutrient uptake. Predictably, other components of their gastrointestinal tract are similarly regulated with each meal. We therefore assessed the matched regulation of gastrointestinal performance by comparing the postprandial activities and capacities of gastric (pepsin), pancreatic (amyla...
متن کاملCharacterization of carbonic anhydrase XIII in the erythrocytes of the Burmese python, Python molurus bivittatus.
Carbonic anhydrase (CA) is one of the most abundant proteins found in vertebrate erythrocytes with the majority of species expressing a low activity CA I and high activity CA II. However, several phylogenetic gaps remain in our understanding of the expansion of cytoplasmic CA in vertebrate erythrocytes. In particular, very little is known about isoforms from reptiles. The current study sought t...
متن کاملRenal plasticity in response to feeding in the Burmese python, Python molurus bivittatus.
Burmese pythons are sit-and-wait predators that are well adapted to go long periods without food, yet subsequently consume and digest single meals that can exceed their body weight. These large feeding events result in a dramatic alkaline tide that is compensated by a hypoventilatory response that normalizes plasma pH; however, little is known regarding how plasma HCO3(-) is lowered in the days...
متن کاملPostprandial morphological response of the intestinal epithelium of the Burmese python (Python molurus).
The postprandial morphological changes of the intestinal epithelium of Burmese pythons were examined using fasting pythons and at eight time points after feeding. In fasting pythons, tightly packed enterocytes possess very short microvilli and are arranged in a pseudostratified fashion. Enterocyte width increases by 23% within 24 h postfeeding, inducing significant increases in villus length an...
متن کاملPostprandial increase of oleoylethanolamide mobilization in small intestine of the Burmese python (Python molurus).
Oleoylethanolamide (OEA) is an endogenous lipid mediator that inhibits feeding in rats and mice by activating the nuclear receptor peroxisome proliferator-activated receptor-alpha (PPAR-alpha). In rodents, intestinal OEA levels increase about threefold upon refeeding, a response that may contribute to the induction of between-meal satiety. Here, we examined whether feeding-induced OEA mobilizat...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2008
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.015313