Results 181 to 190 of about 14,683 (231)

Dehydroepiandrosterone and Exercise in Golden Hamsters

Physiology & Behavior, 1999
Dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) are adrenal androgens that have been associated with a sense of well-being in humans. We describe two experiments done to test the hypothesis that an increase in DHEA or DHEAS secretion is associated with the inclination to exercise using a hamster model.
David R. Pieper, Edward M Lichten, Catherine Lobocki, Jadwiga Malaczynski   +3 more
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Fertilization in the Golden Hamster

1991
Early studies of fertilization in mammals involved observations of gametes that had been flushed from the reproductive tract of mated females. The development in the early 1960s of methods for the in vitro capacitation of sperm and the in vitro fertilization for the golden hamster (Mesocricetus auratus) eggs allowed investigators better control of the ...
Gary N. Cherr, Erma Z. Drobnis
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Disseminated Mycobacteriosis in the Golden Hamster [PDF]

Journal of Veterinary Medicine, Series B, 1987
SummarySpontaneous disseminated mycobacteriosis was observed in a pet golden hamster and grossly characterized by severely enlarged feet and lymph nodes. This enlargement resulted from nonpurulent granulomatous inflammation with intracytoplasmic acid‐fast bacteria and Schaumann bodies.
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Multiple hemoglobins in the golden hamster

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1970
Abstract 1. 1. Seven distinct benzidine-positive bands were found on starch-gel electrophoresis at pH 8.6 of the hemolysates from fetal, newborn and adult golden hamsters. Four of the seven benzidine-positive bands were analyzed and named Hemoglobins I, II, III and IV according to their increasing electrophoretic mobility.
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Carcinogenicity of vinylethylnitrosamine in Syrian golden hamsters [PDF]

Journal of Cancer Research and Clinical Oncology, 1982
Syrian golden hamsters received weekly s.c. doses of 5.0, 2.5, 1.25 or 0.63 mg/kg b.w. vinylethylnitrosamine (VEN). As dose levels increased, average survival time decreased, tumor multiplicity increased as did the total tumor rate which was between 50% and 100%.
J. Althoff, U. Green
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Volume Discrimination in Golden Hamsters

Perceptual and Motor Skills, 1978
To 8 subjects (golden hamsters, Mesocricetus auratus), having learned to discriminate between two cubic volumes of very different size, test-situations were presented to determine if the three spatial dimensions were taken into account during learning. The results show that width is the most used dimension.
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Evidence for a retinohypothalamic pathway in the golden hamster

The Anatomical Record, 1974
AbstractEvidence for a direct neural projection from the retina to the hypothalamus in the golden hamster (Mesocricetus auratus) is presented. In 25 blinded animals degeneration was followed in sections prepared according to the Wiitanen ('69) silver impregnation method.
James L. Hall, Richard H. Printz
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Recognition of competitors by male golden hamsters

Physiology & Behavior, 2004
Golden hamsters, like many animals, form dominant/subordinate relationships after aggressive encounters. We examined whether behavioral responses by males that won or lost fights would differ toward familiar and unfamiliar male stimulus animals. In Experiment 1, male winners or losers of fights explored an arena containing a confined stimulus animal ...
Molly Weidner, Aras Petrulis, Robert E. Johnston   +2 more
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Polycystic liver disease in golden hamsters

Journal of Comparative Pathology, 1987
Seven cases of multiple hepatic cysts of varying sizes and shapes were recorded in a closed colony of golden hamsters. Ante-mortem examination failed to show any clinical signs except for abdominal enlargement in one hamster. Multiple, thin-walled cysts of varying sizes (0.25 to 3.0 cm) and shape were observed in the liver.
R. Somvanshi, J.C. Biswas, G.L. Koul, P.K.R. Iyer   +3 more
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Bombesin-induced grooming in the golden hamster

Behavioural Brain Research, 1988
Lateral cerebroventricular injection of the peptide bombesin (0.01-1.0 micrograms) promptly elicited excessive grooming and scratching behaviors in home-caged male and female golden hamsters. Bombesin-induced grooming persisted throughout a 60-min observation period at doses of 0.1-1.0 micrograms.
G.W. Glazner, Paul J. Kulkosky, V.I. Niichel, M.A. Foderaro, Paul Schnur   +4 more
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