Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 130 for “"male rats"”.
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Chronic mild social stress increases neurogenesis in adolescent male rats
… on hippocampal neurogenesis. In experiment 1, rats were administered Bromodeoxyuridine (BrdU) daily on PND 30-32, or 46-48, to mark neurogenesis at the beginning of the stressor or after the stressor had ceased, respectively. Neither short-term nor chronic stress had an effect on proliferation …
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Testosterone’s regulation of the HPA axis differs for adolescent and adult male rats
… meet the demands of their environment. In adult male rats, CORT release in response to stressors is dampened by the gonadal hormone testosterone. Adolescent male rats secrete more CORT in response to stressors than do adults and our lab has previously reported that gonadectomised pre-pubertal …
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Effects of vitamin E supplementation on renal tissue vitamin E concentration in male rats
… concentrations. In a two week study, twenty-four male Fisher 344 rats were randomly assigned into three groups: 75 IU D-alpha-tocopherol, 355 IU D-alpha-tocopherol, and 750 IU D-alpha-tocopherol. Renal total cholesterol and triglyceride concentrations were not significantly different among …
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The pubertal transition in the play fighting of male rats : developmental byproduct or ontogenetic adaptation?
… juveniles of many mammalian species, including rats (Rattus norvegicus). The mechanisms underlying the change that occurs in the play fighting of male rats at puberty were the focus of this thesis. It was found that castration at weaning disrupted the formation of male-typical dominance …
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Role of testosterone in mediating prenatel ethanol effects on hypothalamic-pituitary-adrenal activity in male rats
… (HPA) and -gonadal (HPG) axes. E rats show HPA hyperresponsiveness to stressors and altered reproductive function in adulthood. Importantly, prenatal ethanol differentially alters stress responsiveness in adult males and females, raising the possibility that gonadal hormones play a …
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The Effects of Lesions in The Limbic System on Courtship and Mating Behavior of Male Rats
Made available in DSpace on 2014-12-09T23:33:53Z (GMT). No. of bitstreams: 1 6604240.pdf: 3939830 bytes, checksum: 94fc807df0c3c58628e7278b19462178 (MD5) Previous issue date: 1965
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NICOTINE AND METHYLPHENIDATE CHORNIC EXPOSURE ON ADULT CANNABINOID RECEPTOR AGONIST (CP 55,940) PLACE CONDITIONING IN MALE RATS
… and abuse related behaviors of nicotine in rats. Thus, the current study consisted of two experiments looking at the effects of early nicotine and methylphenidate exposure on adult CB-agonist place conditioning in rats. In the first experiment, rats were pre-exposed to either saline or …
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Immediate and enduring effects of corticosterone administration during adolescence and adulthood on anxiety and depressive behavior in male rats
… increase depressive and anxiety-like behavior in rats as well as dampen the HPA response to a novel stressor (Kalynchuk et aI., 2004; Johnson et aI., 2006). Several studies have also shown that adolescence is a period of increased sensitivity to the negative effects of stressors (reviewed in …
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The effect of varying levels of dietary protein on carcass composition of eleven- and eighteen-month-old male rats
Carcass composition of male Sprague-Dawley rats, aged 11 and 18 months, in response to varying levels of dietary protein was determined. Groups varying of ten rats of each age were fed diets containing from 1.53 to 8.05 percent protein as casein supplemented with d-1-methionine for five weeks. The …
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Effects of 17β-estradiol on learning and memory and strategy use during a hole board spatial navigation task in aged male rats
… using 17β- estradiol has been done using females rodents, there have been studies showing an improvement in spatial learning and memory and promoted use of allocentric strategies in spatial navigation in males as well. In males testosterone (T) is metabolized into estradiol by aromatase. As …
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The effect of generational feeding of soy and genistein-supplemented diets on progression of precancerous lesions in colon of second generation male rats
Made available in DSpace on 2012-05-22T00:14:47Z (GMT). No. of bitstreams: 2 Jorud_Ingrid.pdf: 6962155 bytes, checksum: c952eff0bb6d12a10ff7100df49e0826 (MD5) license.txt: 4060 bytes, checksum: 5c881f39942655643ce300ca70345d3b (MD5)
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An Exploratory Study of the Systemic Effects of Lead, Trichloroethylene, and a Mixture of Lead and Trichloroethylene Provided Concurrently by Oral Gavage to Male Rats
Forty rats, in groups of ten, were orally dosed with corn oil, corn oil and 2,000 mg/kg trichloroethylene (TCE), corn oil and 2,000 mg/kg lead carbonate, or a mixture of 2,000 mg/kg each TCE and lead carbonate, in an effort to determine whether or not dual administration of both TCE and lead would …
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Characterizing the Development of Reward Evaluation Across Adolescence in Female and Male Long-Evans Rats
… motivation for reward across adolescence in female and male Long-Evans rats. In chapter 2, I used a free-access drinking task to compare how testing conditions (within- group or between-group) influenced intake of diluted sweetened condensed milk and found that previous test experience was …
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Ovarian hormones, but not androgens, mediate running-induced changes in high fat diet choice patterns in rats
… of a novel HF diet and wheel running, male rats show complete and persistent HF diet avoidance whereas the majority of females reverse HF diet avoidance. Ovariectomy (OVX) appears to decrease HF diet preference, bringing it closer to what is observed in male rats. Given that estrogen, …
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Regulation des renalen Natrium-abhängigen Gallensäuren-Transporters (ASBT) durch Sexualhormone und Glukokortikoide
… freshly isolated proximal tubular cells from female and male sprague-dawley rats and in-vivo clearance experiments were performed using the radioactive bile acid 3H-taurocholate as a substrate. Furthermore, western blot analyse were performed to determine the ASBT-protein amount. The uptake …
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Dietary Modulators of Gut Microbiota: Impact on Metabolic Health and Behaviour
… long term low-dose stevia consumption in young male rats; 3) examine the impact of prebiotic, probiotic and synbiotic consumption on behaviours in an autism spectrum disorder mouse model. Methods 1) Diet-induced obese female rats consumed aspartame or stevia alongside a high fat diet during …
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Effects of Electrical Stimulation and Testosterone in Translational Models of Peripheral Nerve Injury
… (TP) in this most proximal injury model. Adult male rats were divided into intracranial sham-operated, intracranial crush, and intracranial crush plus ES+TP combination therapy groups. Animals were observed daily for return of facial nerve function and motor nerve conduction studies were done …
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ASSESSMENT OF NEUROTENSIN RECEPTOR AGONIST EFFECTS ON FEAR-POTENTIATED STARTLE
… PD149163 has exhibited anxiolytic effects in male rats. The present study sought to further evaluate the potential anxiolytic effects of PD149163 by assessing this compound in both male and female C57BL/J6 mice using the fear-potentiated startle (FPS) paradigm. Startle chambers were equipped …
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"""Copulatory memory"": A novel model for the study of recognition in the adult male rat"
… examine a form of recognition that occurs in rats within the context of mating behavior. Sexually-naive, adult, male rats are capable of recognizing familiar females with which they have previously interacted. This so-called ""copulatory memory"" model attempts to define a functional system …
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