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effect of reduced food intake in guinea pigs and the counter effect of epinephrine and constant light on the same animals
Tanta Medical Journal. 1984; 12 (1): 547-564
em Inglês | IMEMR | ID: emr-5206
Biblioteca responsável: EMRO
ABSTRACT
Forty non pregnant female guinea pigs were used in this study, 10 were reared under natural conditions of feeding and light, 10 were given 50% the natural amount of food and were subjected to natural conditions of light, these were used as under-fed control group, 10 animals were used as underfed but they were exposed to constant fluorescent light, the last 10 animals were also used as underfed, but each one was given daily 25 mg epinephrine in corn oil subcutaneously for 16 days. At the end of the experiment, the animals were weighed, the pituitary and adrenal glands were removed, also the uterine horns and ovaries were removed, all the organs were weighed fresh, the hypothalamic arcuate nucleus was dissected and it was subjected to histological and histochemical studies for its Golgi apparatus and Nissl's substance. Changes in the stainability of these structures were used as indication for changes in the neurosecretory activity of the nucleus. It was found that the animals weight and organs weight were decreased by restriction of food, and increased by exposure to constant illumination and epinephrine administration. The estrous cycle and the neurosecretory activity of the hypothalamic arcuate nucleus showed also similar changes. The results were tabulated, photographed and discussed
Assuntos
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Base de dados: IMEMR Assunto principal: Epinefrina Limite: Animais Idioma: Inglês Revista: Tanta Med. J. Ano de publicação: 1984
Buscar no Google
Base de dados: IMEMR Assunto principal: Epinefrina Limite: Animais Idioma: Inglês Revista: Tanta Med. J. Ano de publicação: 1984
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