Results 281 to 290 of about 740,340 (315)
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Energy Utilization in Food-Restricted Female Rats
The Journal of Nutrition, 1986We studied changes in energy utilization in mature female rats exposed to varying degrees of food restriction. Food-restricted rats showed considerable energy conservation, exhibited primarily as a reduction in the energy required for daily maintenance. When a given body weight loss was produced by starvation (3 or 6 d), changes in body composition and
J O, Hill +3 more
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Pituitary function in reproductively senescent female rats
Experimental Gerontology, 1976Abstract Ageing female rats subjected to a standard lighting schedule (L:D = 14:10) frequently enter a state of persistent vaginal cornification (PE) in which follicular development occurs without ovulation. The function of the pituitary/hypothalamic complex in these animals was compared with that of young cyclic rats by measuring levels of ...
R G, Gosden, L, Bancroft
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Acta physiologica Academiae Scientiarum Hungaricae, 1979
Receptivity of female rats has been investigated under chronic experimental conditions. A receptivity index has been worked out for quantitative evaluation. It proved suitable for disclosing stimulatory (2.5 mg noretynodrel, oestradiol propionate) as well as inhibitory (etynodiol diacetate) effects. 2.5 mg noretynodrel has a biphasic effect; causing an
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Receptivity of female rats has been investigated under chronic experimental conditions. A receptivity index has been worked out for quantitative evaluation. It proved suitable for disclosing stimulatory (2.5 mg noretynodrel, oestradiol propionate) as well as inhibitory (etynodiol diacetate) effects. 2.5 mg noretynodrel has a biphasic effect; causing an
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Trends in Neurosciences, 2001
Dopamine release in the nucleus accumbens (NAcc) correlates with rewarding or reinforcing events, and has been studied extensively in the context of drug abuse, feeding, and sex. Using behavioral indicators and measurements of NAcc dopamine, it appears that sexual activity is rewarding for female rats only if they, rather then the males, are ...
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Dopamine release in the nucleus accumbens (NAcc) correlates with rewarding or reinforcing events, and has been studied extensively in the context of drug abuse, feeding, and sex. Using behavioral indicators and measurements of NAcc dopamine, it appears that sexual activity is rewarding for female rats only if they, rather then the males, are ...
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Film analyses of lordosis in female rats
Hormones and Behavior, 1974Abstract Responses of male and female rats during the initiation of lordosis by the female are described using observations with films taken from a side or ventral view. Where possible, behavioral events were described objectively, quantified and plotted as a function of time.
D W, Pfaff, C, Lewis
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Oxytocin stimulates lordosis behavior in female rats
Neuropeptides, 1985Oxytocin, either intraperitoneally injected (200 ng/rat) or intracerebroventricularly infused (1 ng/rat in 4 microliters saline) 60 and 15 min respectively before testing, significantly increased the lordosis response to the mounting male of ovariectomized, estrogen/progesterone treated rats.
R, Arletti, A, Bertolini
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A novel CYP3 gene from female rats
Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression, 1995A cDNA library constructed from adult female Sprague Dawley rat liver was screened with polyclonal anti CYP3A-IgG. One of the positive clones, cUT, was found to contain the complete coding sequence of a new gene more similar to hamster gene CYP3A10 (cDNA: 85%, deduced amino acid sequence: 79%) than to the known rat CYP3A genes (cDNA: 75-76%, amino acid
D, Strotkamp, P H, Roos, W G, Hanstein
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Hypophysectomy Facilitates Sexual Behavior in Female Rats
Neuroendocrinology, 1976Lordosis was elecited in 49% of 87 hormonally untreated, hypophysectomized-ovariectomized (hypox-ovx) female rats in response to palpation of the flanks and perineum (vaginal stimulation was not applied). By contrast, only 12% of 113 hormonally untreated ovariectomized (ovx) rats showed lordosis in response to such stimulation.
W R, Crowley +2 more
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Bone marrow in male and female rats
Experientia, 1978Sex differences of high significance in the marrow weight relative to femur volume, as well as to body weight, were found in adult rats. A positive significant correlation was found between the femur volume and the marrow volume in both sexes, while a negative significant correlation between femur density and the marrow content (mg/mm3) exists only in ...
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