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Showing 1 to 20 of 105 for “"Jejunum"”.
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Acidification in the Rat Proximal Jejunum
Acidification of solutions by rat proximal jejunum was investigated in everted sacs, segments and in perfused in vivo loops. Acidification which declines down the jejunum, increased with increasing mucosal glucose concentration, reaching a maximal value. Derived Michaelis-Menten data gave an …
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Transport of 5-methyltetrahydrofolic Acid Across the Rat Jejunum
… using various in vitro preparations of rat jejunum. The transport of 5-methyltetrahydrofolic acid using the everted sac preparation was linear with increasing incubation time at the mucosal 5-methyltetrahydrofolic acid concentration of 10-5M. Tissue uptake was appreciable whether there was …
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Treatment of Ischemic Equine Jejunum with Topical and Intraluminal Carolina Rinse
… low flow ischemia or distention in the equine jejunum. Materials & Methods: Two groups of 5 horses were used to evaluate CRS treatment after low-flow ischemia (Group 1) and intraluminal distention (Group 2) of distal jejunum. Mesenteric blood flow, osmotic reflection coefficient (ORC), wet …
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Characteristics of threonine, valine and methionine absorption in the jejunum and ileum of sheep
Wethers fitted with double re-entrant cannulae located in either the jejunal or ileal section of the small intestine were used to study the absorption characteristics of threonine, valine and methionine. Perfusions of the cannulated intestine were conducted 4 hr after feeding for a 1 hr period. …
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Characteristics of threonine, valine and methionine absorption in the jejunum and ileum of sheep
Wethers fitted with double re-entrant cannulae located in either the jejunal or ileal section of the small intestine were used to study the absorption characteristics of threonine, valine and methionine. Perfusions of the cannulated intestine were conducted 4 hr after feeding for a 1 hr period. …
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A Pharmacological Analysis of Functions of the Enteric Plexuses in Isolated Segments of Cat Jejunum
Made available in DSpace on 2014-12-09T23:34:00Z (GMT). No. of bitstreams: 1 6808193.pdf: 5382858 bytes, checksum: 58728449bf8df289e3991adef4d7afcf (MD5) Previous issue date: 1967
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Investigating the Spatiotemporal Variation in Functional Markers, Gut Metabolites and Ethanol Toxicity in In Vitro Cultures of the Rat Jejunum and Hepatocytes
… explants obtained from three regions of the jejunum, named as the proximal, medial and distal jejunum. Markers of enterocyte, goblet cell and Paneth cell function in the jejunum followed in vivo – like spatial trends reported for the entire small intestine. Jejunum explants were integrated …
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Regulation of Intestinal Development and Function in Early-Life Pigs
… 0.003) and maltase (P = 0.042) activities in the jejunum, and increased lactase activity in the ileum (P = 0.020). Jejunal IL-β concentrations were greater in control pigs (P = 0.014) compared with other treatments, while mRNA abundance of intestinal integrity markers varied among treatment …
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Tissue- and Development-specific Expression of Proton-mediated Peptide Transporters in the Developing Chicken
… mRNA expression in the proventriculus, duodenum, jejunum, ileum, ceca, large intestine, brain, heart, bursa of Fabricius, lung, kidney, and liver in layer chicks on embryonic days 18 and 20 and days 1, 3, 7, 10, and 14 post-hatch. Absolute quantification real-time PCR was used to measure gene …
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In vitro absorption of valine, threonine and methionine by the small intestine of sheep
… of amino acids from the mucosal fluid than the jejunum and significantly (P<.01) less than the ileum. The release of amino acids from duodenal tissue was small for threonine and methionine and negative for valine. Accumulation of amino acids by duodenal tissue was not significantly different …
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Expression of Digestive Enzymes and Nutrient Transporters in the Intestine of Eimeria-challenged Chickens
… acervulina infects the duodenum, E. maxima the jejunum, and E. tenella the ceca. Lesions in the intestinal mucosa cause reduced feed efficiency and body weight gain in Eimeria-challenged chickens. The growth reduction may be due to changes in expression of digestive enzymes and nutrient …
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Developmental Regulation of the Expression of Nutrient Transporter and BrushBorder Membrane Hydrolase Genes in the Small Intestine of Piglets
… 24, 28, 35), and intestinal segments (duodenum, jejunum and ileum) were collected. The mRNA abundance was determined by Northern blot using specific cDNA probes for three disaccharidases (lactase-phlorizin hydrolase, LPH, sucrase-isomaltase, SI, and maltase-glucoamylase, MGA), three peptide …
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1,25- dihydroxycholecalciferol-glycoside supplementation for LPS - challenged broiler chickens
… to collect blood, spleen, duodenum, and jejunum samples. Broilers performance was evaluated at 25 days of age, when all birds were slaughtered to analyze calcium and phosphorus cocentrations in the tibia. Data were analyzed using a one-way ANOVA and adjusted means were compared using the …
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On the humoral mediation of the intestinal phase of gastric secretion
… humoral agent is a hormone that arises in the jejunum. Elaboration of the hormone is triggered both by the entry of food into the jejunum and by a brief period of jejunal distension with a balloon.
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Tissue Distribution of a Peptide Transporter mRNA in Sheep, Dairy Cows, Pigs, and Chickens
… with mRNA from the omasum, rumen, duodenum, jejunum, and ileum. The estimated size of mRNA was 2.8 kb. No hybridization was observed with mRNA from the abomasum, cecum, colon, liver, kidney, and semitendinosus and longissimus muscles of either species or the mammary gland of the dairy cows. …
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Effects of Chronic High Sucrose With Dietary or Drinking Inclusion on the Electrogenic Glucose Absorption in the Intestinal Tract of Mice (Mus musculus)
… 100.8 ± 24.2 uA/cm2, K0.5 17.6 ± 0.9 mM) in the jejunum, high affinity, high capacity transport in the ileum (Vmax of 111.4 ± 17.5 uA /cm2, K0.5 7.4 ± 1.0 mM) and the absence of transport in the colon. The preferential fit of the kinetics to the Hill Equation sigmoidal kinetics in each of the …
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Delayed access to feed affects broiler small intestinal morphology and intestinal cell ontogeny
… investigated by quantitative PCR, in duodenum, jejunum, and ileum at 0 h, 24 h, 36 h, 72 h, 120 h, and 168 h posthatch. Additionally, localization of cells expressing each gene was visualized using in-situ hybridization at all listed times except 168 h posthatch. Statistical analysis was …
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Effect of feeding fumaric or citric acid on weanling pig performance and selected intestinal digesta measurements at varying times postweaning
… pH, Cl- or VFA profile. ETEC challenge increased jejunum lactic acid concentration, lower colon VFA concentration and severity of scouring. Postweaning age affected these intestinal digesta measurements: cecum pH decreased; jejunum Cl- increased; jejunum lactobacillus count decreased; lower colon …
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THE GUT MICROBIOTA OF A WILD AMERICAN BLACK BEAR (Ursus americanus) POPULATION
… wild black bear GMB communities in the colon and jejunum, two functionally distinct regions of the gastrointestinal tract (GIT). Second, I estimated the proportional contribution of human-provisioned foods to the diets of black bear and evaluated the effect of human-provisioned foods on the GMB at …
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