Academic literature on the topic 'In weanling rat'

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Journal articles on the topic "In weanling rat"

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Takahashi, M., H. Homma, and M. Matsui. "Developmental changes in the isoelectric variants of rat hepatic hydroxysteroid sulphotransferase." Biochemical Journal 293, no. 3 (1993): 795–800. http://dx.doi.org/10.1042/bj2930795.

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Major isoenzymes of androsterone-sulphating sulphotransferase (AD-ST) were isolated from liver cytosols of weanling and young adult female rats and their isoelectric properties were compared. On chromatofocusing the enzyme activity of young adults was eluted over a wider range of pH than was that of weanling rats. The activity at pH 7.8-7.2 (fraction I) is obvious at both ages, whereas the activity eluted over the pH 6.6-5.5 range (fraction II) is much lower in weanlings than in young adults. The AD-ST activities eluted in fractions I and II were separately purified by 3′-phosphoadenosine 5′-p
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Bedrick, Alan D., Susanne M. Johnson та Otakar Koldovsky. "In Vitro Intestinal Processing of Prostaglandin F in Rats". Journal of Pediatric Gastroenterology and Nutrition 7, № 5 (1988): 755–61. http://dx.doi.org/10.1002/j.1536-4801.1988.tb09629.x.

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SummaryCytoprotective prostaglandins (PGs) such as PGF2α are present in milk and can be absorbed intact from the gastrointestinal tract. Developmental differences in gastrointestinal PG metabolism in vivo have been previously reported. To evaluate the role of small intestinal tissue. detailed analysis of PG processing in vitro of small intestinal segments of suckling and weanling rats using everted sacs was performed. Sacs were incubated in Krebs‐Ringer bicarbonate buffer, pH 7.4, at 37°C. Bathing mucosal fluid contained [H]PGF2α. Proximal and middle intestinal segment everted sacs of suckling
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Dowell, Russell T. "Metabolic and cyclic nucleotide enzyme activities in muscle and nonmuscle cells of rat heart during perinatal development." Canadian Journal of Physiology and Pharmacology 63, no. 1 (1985): 78–81. http://dx.doi.org/10.1139/y85-014.

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Enzyme activities related to aerobic metabolism and cyclic nucleotides were evaluated in muscle and nonmuscle cells of rat heart. The perinatal period from weaning to adult was studied. Malate dehydrogenase, citrate synthase, and 3-hydroxyacyl-CoA dehydrogenase activities of nonmuscle cells equal or exceed muscle cell activities in the weanling heart. Aerobic enzymes remain unchanged in nonmuscle cells during growth; however, muscle cell activities are enhanced. Adenylate cyclase and guanylate cyclase activities are higher in heart homogenates of weanling than adult rats. Despite elevated aden
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Martin, A. F., D. C. Robinson, and R. T. Dowell. "Isomyosin and thyroid hormone levels in pressure-overloaded weanling and adult rat hearts." American Journal of Physiology-Heart and Circulatory Physiology 248, no. 3 (1985): H305—H310. http://dx.doi.org/10.1152/ajpheart.1985.248.3.h305.

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We examined the relationship between ventricular isomyosin composition and plasma thyroxine (T4) 5 wk after partial constriction of the abdominal aorta in weanling (21 day) and adult (8 wk) rats. Cardiac enlargement in weanling aorta-constricted animals was associated with a significant (P less than 0.001) decrease in %V1 isomyosin in both left (32%) and right ventricles (25%) with a corresponding increase in the %V3 isomyosin and a reduction in plasma T4 levels. However, the ratio of V1/T4 was similar in weanling control (17.8 +/- 0.8) and aorta-constricted (18.0 +/- 1.4) rats. In adult aorta
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Narkewicz, Michael R., Sherrie Caldwell, and Gayle Jones. "Cysteine Supplementation and Reduction of Total Parenteral Nutrition—Induced Hepatic Lipid Accumulation in the Weanling Rat." Journal of Pediatric Gastroenterology and Nutrition 21, no. 1 (1995): 18–24. http://dx.doi.org/10.1002/j.1536-4801.1995.tb11728.x.

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SummaryTotal parenteral nutrition (TPN)‐induced hepatic steatosis is the most common complication of TPN administration to humans. The mechanism of TPN‐induced hepatic steatosis has not been studied in young mammals. The goal of this study was to determine the mechanism of TPN‐induced hepatic steatosis in the weanling rat and the effect of supplementation of TPN with choline and/or cysteine on TPN‐induced hepatic steatosis. In the weanling rat, we investigated the effect of TPN administration on histologic hepatic steatosis, total hepatic lipid, hepatic acetyl‐CoA‐carboxylase (ACC—the rate lim
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WAMBERG, S., K. ENGEL, and P. KILDEBERG. "Methionine-induced acidosis in the weanling rat." Acta Physiologica Scandinavica 129, no. 4 (1987): 575–83. http://dx.doi.org/10.1111/j.1748-1716.1987.tb08099.x.

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Rao, R. K., O. Koldovsky, and T. P. Davis. "Inhibition of intestinal degradation of somatostatin by rat milk." American Journal of Physiology-Gastrointestinal and Liver Physiology 258, no. 3 (1990): G426—G431. http://dx.doi.org/10.1152/ajpgi.1990.258.3.g426.

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In vitro degradation of 125I-labeled somatostatin-14 (Tyr11) [I-SS-14(Tyr11)] by luminal flushings of rat gastrointestinal segments was studied to characterize the fate of somatostatin in the gastrointestinal lumen. In addition, we evaluated the effect of rat milk as a potential inhibitor of luminal degradation of 125I-SS-14(Tyr11). Degradation of 125I-SS-14(Tyr11) was not detected in stomach flushings from either suckling or weanling rats. Luminal flushings from the small intestine degraded 125I-SS-14(Tyr11), with a gradient increase of activity from duodenum to midjejunum (degradation in suc
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Britton, John R., and Otakar Koldovsk. "Effect of Short‐Term Food Deprivation on Luminal Protein Digestion in Suckling and Weanling Rats." Journal of Pediatric Gastroenterology and Nutrition 6, no. 5 (1987): 789–94. http://dx.doi.org/10.1002/j.1536-4801.1987.tb09400.x.

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SummaryAlthough previous studies have described the effects of long‐term undernutrition on the process of protein digestion, little data exist regarding the impact of short‐term food deprivation on digestive processes. To evaluate the effect of short‐term food deprivation on luminal proteolytic activity in the rat, we incubated [125I]bovine casein in vitro at 37°C with fluid flushed from the lumen of stomach and small intestine of 12‐day‐old suckling and 31‐day‐old weanling rats that were either fed or food deprived for 12 h/100 g body weight (3 h for sucklings, 12 h for weanlings), followed b
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Williamson, D. H., and V. Ilic. "Activities of enzymes of acetoacetate metabolism in rat brown adipose tissue during development." Biochemical Journal 231, no. 3 (1985): 773–75. http://dx.doi.org/10.1042/bj2310773.

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The activities of two mitochondrial enzymes concerned in the utilization of acetoacetate, namely 3-oxoacid CoA-transferase and acetoacetyl-CoA thiolase, were high throughout the suckling and weanling period in brown adipose tissue of the rat. In contrast, 3-hydroxybutyrate dehydrogenase activity was comparatively low during this period. The activity of cytosolic acetoacetyl-CoA synthetase (involved in lipogenesis) declined after birth and remained low until the pups were weaned. Experiments with brown-adipose-tissue slices from weanling rats indicated that 70% of the [3-14C]acetoacetate utiliz
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Bernardis, L. L., J. Medige, R. Gillespie, H. Wu, and I. Ziv. "The Lateral Hypothalamic Syndrome in the Weanling Rat." Physiology & Behavior 67, no. 5 (1999): 799–802. http://dx.doi.org/10.1016/s0031-9384(99)00097-9.

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Dissertations / Theses on the topic "In weanling rat"

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Surdhar, Mohinderjeet S. "Folate metabolism in the female weanling rat." Thesis, Aston University, 1987. http://publications.aston.ac.uk/14503/.

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The metabolism of a mixture of [2-14C] and [3',5',7,9-3H] folic acid was studied in female weanling rats. Intact folates and folate catabolites were excreted in the urine. Folate polyglutamates were found in the tissues. Rats treated with the oestrogen diethylstilbestrol and 17 -ethynyloestradiol exhibited marked changes in the metabolic handling of folic acid and folate catabolism was greatly increased compared to controls. Allopurinol treatment gave greater label retention in the gut, with a substantial increase in catabolism compared to normals. A dose response relationship was illustrated
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Tan, H. M. "The emergence of the head direction system in pre-weanling rat pups." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1469477/.

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This thesis characterises the head direction system in pre-weanling rats around the time of eye-opening. Head direction (HD) cells are neurons in a distributed network of brain areas that fire action potentials as a function of the animal’s directional orientation relative to its environment. Environmental sensory information and self-motion cues are used to update the directional signal, with visual landmarks being particularly salient in controlling the preferred firing directions of HD cells. HD cells have previously been shown to be adult-like as early as postnatal day 16 (P16) in the rat
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Wang, Jun. "Encapsulation of DHA oil as Pickering emulsion : effect on DHA bioaccessibility and metabolism." Thesis, Rennes, Agrocampus Ouest, 2022. https://tel.archives-ouvertes.fr/tel-03711326.

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L'encapsulation peut affecter la digestion et la bioaccessibilité des composés encapsulés, ce qui peut ensuite affecter leur métabolisme. Le but de ce projet était d'étudier les effets de l'encapsulation sur la bioaccessibilité et le métabolisme du DHA, en étudiant une huile de DHA non-encapsulée ou encapsulée, apportée sous forme d'omelette comme matrice alimentaire.L'huile de DHA, composée de triacylglycérols riches en DHA, a été préparée sous forme d'émulsion de Pickering, stabilisée par des isolats de protéines de lactosérum dénaturés par la chaleur. De l'huile pure ou sous forme d’émulsio
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Mussig, L. "Sensory integration in the hippocampal formation of pre- and post-weanling rats." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1465089/.

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‘Place cells’ are hippocampal pyramidal neurons which fire only when an animal visits a particular location in an environment (‘place fields’). Their location-specific firing is supported by configurations of multi-modal sensory cues. Almost all work on place cells focused on the properties of these cells in adult rats. Recent work (Langston et al., 2010; Scott et al., 2011; Wills et al., 2010) however could identify place cells in the hippocampus of very young rat pups (ca. 2 weeks old), and furthermore show that these cells undergo a strong functional maturation in terms of their location-sp
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Watson, Deborah J. "The neurobiology of spatial reversal learning in weanling rats / an analysis of the hippocampus, prefrontal cortex, and striatum." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 219 p, 2009. http://proquest.umi.com/pqdweb?did=1885693191&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Fair, Denise Elizabeth. "Early dietary soy protein attenuates renal disease and alters renal and hepatic fatty acid composition in weanling Han:SPRD-cy rats." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62724.pdf.

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Green, Kathy H. "Type 1 diabetes and bone mass, interrelationships with nutrient intake and physical activity in children and with dietary fish oil in weanling rats." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ57543.pdf.

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Lai, Tzi-Chung, and 來姿君. "The effect of folate deficiency on the monoaminergic neuron activity in weanling rats." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/96992646139296766195.

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碩士<br>國立陽明大學<br>解剖學研究所<br>87<br>Abstract Folic acid (folate) is an essential water-soluble vitamin and it undergoes a number of metabolic changes which involves the one-carbon groups transferation in organisms. Folate is needed for the synthesis of purines, pyrimidines and DNA; it also associates with the formation of the sperms and proteins. Recent studies had indicated that folate deficiency changed the concentration of monoamines in hypothalamus and caudate nucleus, and it also induced the behavior of spilling food in the mice. The objective of the study was to correlate the po
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Walters, Brandon. "Efficacy of a yeast cell wall-derived mycotoxin adsorbent on excretion of aflatoxin B2 in weanling rats." Thesis, 2012. http://hdl.handle.net/10214/5199.

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Mycotoxins are natural contaminants of livestock feeds that can impair production efficiency. Specialized feed additives known as mycotoxin adsorbents may reduce absorption of mycotoxins in animals. Many additives are thought to use nonspecific binding to sequester mycotoxins in the lumen of the gastrointestinal tract, but there is a lack of in vivo mechanistic evidence. The current research sought to quantify the adsorptive capabilities of a yeast cell wall-derived mycotoxin adsorbent and confirm whether its mode of action is by adsorption of the mycotoxin. Using radioactive aflatoxin B2, it
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Books on the topic "In weanling rat"

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Surdhar, Mohinderjeet Singh. Folate metabolism in the female weanling rat. Aston University. Department of Molecular Sciences, 1987.

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Dyer, John Robert *. The amount and ratio of essential fatty acids in the diet of the weanling rat differentially affect the fatty acid composition of the brain. 1990.

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Specht, Steven M. Histamine-elicited and food-related drinking in adult and weanling rats. 1987.

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Linville, Donald Gordon. Cholinergic influence on shock-precipitated wall climbing in infant, preweanling, weanling and young adult rats. 1985.

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Book chapters on the topic "In weanling rat"

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Kennedy, M. L., and B. Lönnerdal. "Zinc Uptake by Brush Border Membrane Vesicles (BBMV) from Pre-Weanling Rat Small Intestine." In Trace Elements in Man and Animals 6. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0723-5_216.

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Casal, Margret L., Mark E. Haskins, and John H. Wolfe. "In Vitro Retroviral Vector-Mediated Transfer of the Rat Beta-Glucuronidase cDNA into Canine Fetal Liver Cells and Weanling MPS VII Bone Marrow Cells." In Molecular Biology of Hematopoiesis 5. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0391-6_40.

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Rattan, V., S. K. Thind, R. K. Jethi, and R. Nath. "Endogenous Synthesis of Oxalate in Magnesium Deficient Weanling Rats." In Urolithiasis 2. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2556-1_11.

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Rader, J. I., S. H. Tao, and M. R. S. Fox. "Effects of Soybean Trypsin Inhibitor on Tissue Zinc in Weanling Male Long-Evans Rats." In Trace Elements in Man and Animals 6. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0723-5_176.

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Vincent, Joseph, Jorge Soliz, and Jean-Marc Pequignot. "Long-term Effects of Neonatal Cryoanesthesia on Hypoxic Ventilatory Response in Weanling Rats Depend on Neonatal Testosterone." In Advances in Experimental Medicine and Biology. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-9280-2_70.

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Andersson, K., A. Jansson, B. Bjelke, P. Eneroth, and K. Fuxe. "Effects of Postnatal Exposure to Cigarette Smoke on Hypothalamic Catecholamine Nerve Terminal Systems and Neuroendocrine Function in Weanling and Adult Male Rats." In Effects of Nicotine on Biological Systems. Birkhäuser Basel, 1991. http://dx.doi.org/10.1007/978-3-0348-7457-1_43.

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"Hershberger Bioassay in Rats (H assay) (OECD TG 441) (including OECD GD 115 on the Weanling Hershberger Bioassay)." In OECD Series on Testing and Assessment. OECD, 2018. http://dx.doi.org/10.1787/9789264304741-21-en.

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Jodkowska, E., H. Górecka, A. Trybuś, and M. Ostrowska. "Effect of yeast culture (Yea-Sacc1026) on growth rate of Thoroughbred weanlings and contents of calcium and phosphorus in their hooves." In Book of Abstracts of the 46th Annual Meeting of the European Association for Animal Production. Brill | Wageningen Academic, 1995. https://doi.org/10.1163/9789004684317_677.

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