نتایج جستجو برای: castrated rat
تعداد نتایج: 277303 فیلتر نتایج به سال:
Castration of male animal's leads to a reduction in aggressive behavior, which animals will avoid wasting energy resulting to economic production of the animal, grows. It also reduces damage and bruising animals and increases normed meat producing at slaughter. In this study, 20 lambs Ghezel breed in four age groups, group 1: one month (n = 4), group 2: two months (n = 4) Group 3: three months ...
Androgen deficiency is strongly associated with erectile dysfunction (ED). Inadequate penile arterial blood flow is one of the major causes of ED. The blood flow to the corpus cavernosum is mainly derived from the internal pudendal arteries (IPAs); however, no study has evaluated the effects of androgen deprivation on IPA's function. We hypothesized that castration impairs IPAs reactivity and s...
Androgen induces prostate cell proliferation in the castrated rat. We hypothesized that G1 cyclins, cyclin-dependent kinases (cdk), and cdk inhibitors mediate this cellular response to mitogenic signals. In this study, induction of cyclins D1, D2, D3, E, and cdks 2, 4, and 6 expression was observed at various time points during testosterone replacement in the ventral prostate of castrated rats....
The effects of the polypeptide hormone prolactin (PRL) in the development and regulation of benign prostate hyperplasia (BPH) and also in prostate cancer are not very well characterized. This study examines the action of PRL, either alone or in association with androgens [testosterone (T) or dihydrotestosterone (DHT)], in the rat prostate gland. The effects of PRL and androgens were investigate...
In this paper, data are presented which demonstrate that adenylate kinase and creatine kinase are oncodevelopmental enzymes in the rat prostate. The Dunning tumor (dorsal rat prostate) was used as a model system; four sublines of the tumor (R3327-H, R3327-AT, MAT Lu, and MAT LyLu) were studied. The tumor lines were maintained as solid tumors in syngeneic rats (Copenhagen) and as monolayers in t...
Background This study aimed to assess follicle survival after xenotransplantation of sheep ovarian tissue into male and female immunodeficient rats. We evaluated the effects of gonadotropin treatment on follicular development in the transplanted tissue. MaterialsAndMethods In this experimental study, sheep ovarian cortical strips were transplanted into the neck back muscles of 8 male and 8 fema...
Effects of Vitamin E and Essential Fatty Acid Deficiencies on the Intes tinal Transport of L-Valine and a-Methyl-o-Glucoside in the Rat. Riazul H. Imami, Sheldon Reiser and Philip A. Christiansen 101 Effect of Vitamin B« Depletion in Adult Man on the Excretion of Cystathionine and Other Methionine Metabolites. Youngmee Kang Park and Hellen Linksiviler 110 Production of Urinary Calculi in Vitam...
1. Implantation of diethylstilboestrol pellets into adult male rats brings about similar biochemical changes in the nucleic acid and protein metabolism to castration. 2. The avidity of the prostate for labelled diethylstilboestrol was greater than that of the other organs examined. 3. Uptake of labelled diethylstilboestrol and testosterone into the nuclei of the rat prostate is greater in castr...
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