Mostrando ítems 1-10 de 388
Reproductive cycles in Bos indicus cattle
(Animal Reproduction Science, 2011-04-01) [Artigo]
Several studies using transrectal ovarian ultrasonic scanning in Bos taurus (B. taurus) cattle and more recently in Bos indicus (B. Indicus) females evaluated the reproductive cycles of heifers and cows under different ...
Effects of nandrolone decanoate and resistance exercise on skeletal muscle in adult male rats
(International Journal of Morphology, 2012-01-01) [Artigo]
The aim of this study was to compare the effects of resistance exercise associated or not with nandrolone decanoate (ND) on skeletal muscles and body mass of adult male rats. Training protocol consisted of 15 jump sessions, ...
Influence of anabolic steroid treatment upon muscle regeneration and satellite cells of mice following envenoming by Bothrops jararacussu snake venom
(Toxicology Letters, 2007-10-07) [Resumo]
Orchidectomy enhances the effects of phenylephrine in rat isolated portal vein
(Clinical and Experimental Pharmacology and Physiology, 2010-03-01) [Artigo]
P>1. Orchidectomy results in long-term testosterone deprivation similar to that observed in male clinical pathologies, such as hypogonadism and age-related reductions in plasma testosterone concentrations. Although the ...
Abortive and teratogenic effect of Acanthospermum hispidum DC. and Cajanus cajan (L.) Millps. in pregnant rats
(Journal of Ethnopharmacology, 1994-06-01) [Artigo]
Extracts of Acanthospermum hispidum and Cajanus cajan have been used by Brazilian people in an attempt to produce abortion. In order to evaluate the possible abortive and/or teratogenic effect of these plant extracts, ...
Ovulation rate and its relationship with follicle diameter and gene expression of the LH receptor (LHR) in Nelore cows
(Theriogenology, 2012-01-01) [Artigo]
The objective was to determine the relationship among the diameter of ovarian follicles, ovulation rate, and gene expression of the LH receptor (LHR) in Nelore cattle. In Experiment 1, ovulation was synchronized in 53 ...
An integrated approach to identification and conservation of medicinal plants in the tropical forest - A Brazilian experience
(Plant Genetic Resources: Characterisation and Utilisation, 2005-08-01) [Artigo]
An integrated and interdisciplinary research programme with native medicinal plants from tropical forests has been performed in order to obtain new forest products for sustainable use in regional markets vis-à-vis ecosystem ...
PRESYNAPTIC AND POSTSYNAPTIC MECHANISMS INVOLVED IN TETANIC FADE INDUCED BY PANCURONIUM IN THE ISOLATED RAT MUSCLE
(Pharmacology, 1994-10-01) [Artigo]
The mechanisms underlying the fade of the tetanic contraction induced by pancuronium were studied in vitro by means of myographical and electrophysiological techniques in the extensor digitorum longus muscle of the rat. ...
Competitive antagonism associated with blockade of neuronal uptake: effects of indoramine in rat vas deferens and aorta
(Anais da Academia Brasileira de Ciências, 2000-03-01) [Artigo]
Biochemical and biological evaluation of gyroxin isolated from Crotalus durissus terrificus venom
(Journal of Venomous Animals and Toxins Including Tropical Diseases, 2011-01-01) [Artigo]
Gyroxin, a thrombin-like enzyme isolated from Crotalus durissus terrificus venom and capable of converting fibrinogen into fibrin, presents coagulant and neurotoxic activities. The aim of the present study was to evaluate ...