Results 291 to 300 of about 88,646 (317)

Glucoprivic regulation of estrous cycles in the rat

Hormones and Behavior, 2003
Previous research has shown that glucoprivation induced by chronic 2-deoxy-D-glucose (2DG) treatment extends estrous cycle length and disrupts reproductive behaviors in female hamsters, similar to food deprivation. Such treatment also suppresses food intake, which is reversed in male rats by reducing brain histamine levels prior to 2DG treatment.
Christine A Starer, Helen I’Anson, Kristen R Bonnema   +2 more
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Urination patterns and estrous cycling in mice

Behavioral and Neural Biology, 1979
Changes in urination behavior in female C3M/Me-Mg self chocolate house mice were investigated in relation to the estrous cycle. The number of urine spots deposited on filter paper, and visualized under ultraviolet light, was found to be significantly higher during the proestrous and estrous stages of the cycle but showed a dramatic decline following ...
Alan J. Powell, Penelope R. Wolff
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Electroconvulsive shock and the estrous cycle in the rat

Behavioral Biology, 1978
The effects of electroconvulsive shock on the estrous cycle in the rat were investigated. Sixty animals, chosen on the basis of stability of estrus, were assigned randomly to one of four treatment conditions with the restriction that each condition contain 15 subjects.
Joel S. Milner, Louise F. Gilbert, Michael J. Prewett   +2 more
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Radiosensitivity with Respect to the Estrous Cycle in the Mouse

Radiation Research, 1955
lethality, carcinogenesis and cataractogenesis, shortening of life, sterility and a variety of other sequelae. The present study is made from another point of view, namely the effect of a physiological condition of the animal, i.e., estrus, on its response to whole-body X-irradiation. Ellinger (1) may have been one of the first to recognize the male as
Helen Clugston, Roberts Rugh
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Apoptosis in the estrous and menstrual cycles.

Journal of mammary gland biology and neoplasia, 1999
In the absence of pregnancy, the adult mammary gland is subjected to cyclic fluctuations of hormonal stimulation that constitute the estrous and menstrual cycles. The mammary epithelium responds to these systemic hormonal changes by regional proliferation, differentiation and cell death by apoptosis.
Robert Strange, Anne-Catherine Andres
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The Estrous Cycle

1985
The golden hamster Mesocricetus auratus was described as a new species and originally named Cricetus auratus by Waterhouse (1839). Laboratory colonies of the golden hamster both in Europe and America originate from a single capture from the wild by Mr. I.
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Progesterone: Regulation of Estrous Cycle, Ovulation and Estrous Behavior in the Golden Hamster

Endocrinology, 1970
Three-month-old, intact, virgin, female golden hamsters were treated with progesterone given as a single subcutaneous injection using either 0.05 ml propylene glycol (PG) or sesame oil (SO) as an injection vehicle. The animals were then observed for estrous behavior and time of ovulation. One hundred, 50 and 25 but not 12.5 μg progesterone given on the
Robert D. Lisk, Leonard A. Ciaccio, Lawrence A. Reuter   +2 more
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A Role for Resistin in the Ovary During the Estrous Cycle

Hormone and Metabolic Research, 2014
In a previous study, we showed that resistin expression increased during ovarian follicle development in prepubertal pigs and had direct effects on steroidogenesis, suggesting an important role for resistin in the ovary during puberty. To determine its potential regulatory role in the ovary during the estrous cycle, using real-time PCR, immunoblotting,
Rak, Agnieszka, Duda, Małgorzata, Gregoraszczuk, Ewa   +2 more
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Unusual and abnormal canine estrous cycles

Theriogenology, 2007
Preovulatory serum progesterone concentrations are used to estimate the day of LH peak (day 0), not only to accurately time insemination and predict parturition, but to identify abnormal or unusual estrous cycles due to ovarian dysfunction. Early identification of these disorders is of therapeutic and economic importance.
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Hypergravity: Its effect on the estrous cycle of rats

Experientia, 1977
Hypergravity affects the estrous cycle of rats. It is prolonged by a force of 1.39G–1.65G, and shows irregularities between 1.02 and 1.19G. Rats centrifuged for 40 days and returned to normal gravity presented a normal estrous pattern.
Jacob S. Ishay, E. Megory, Liliane Barr-Nea, F. Konikoff   +3 more
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