منابع مشابه
Circadian organization of the estrous cycle of the golden hamster.
In constant dim illumination the hamster estrous cycle free-runs with a period that is a quadruple multiple of the concurrently recorded rhythm of wheel-running activity; both activity and estrous cycles are generated by biological clocks. Maintenance of stable phase angle differences between heat onset and running onset before and after treatment with deuterium oxide suggests that a common cir...
متن کاملIntussusception in the Syrian golden hamster.
Of a series of ninety-six young male Syrian Golden hamsters, 13% developed lethargy, anorexia, diarrhoea and colocolic intussusception when their diet was changed from a basal laboratory-grade rodent chow to a nutritionally complete semi-purified diet. Histologically, the colon of the hamsters with intussusception had markedly reduced mucus production. Plasma levels of gastric inhibitory polype...
متن کاملMultipotential carcinogenesis with urethan in the Syrian golden hamster.
17rethan in the drinking water (0.~2-0.4 per cent) was administered to 5to 7-weekold Syrian golden hamsters and continued for 4~ weeks with an 8-week interval between the 40th and 48th week. This t rea tment has been found to give rise to melanotic tumors of the skin, papillomas and carcinomas of the forestomach, adenomatous polyps of the cecum, pulmonary adenomatosis, m a m m a r y tumors, hep...
متن کاملA Transplantable Induced Melanotic Tumor of the Syrian Golden Hamster*
The present paper records the availability of a new transplantable melanotic tumor in the Syrian golden hamster. A previous report (1) described the induction of multiple pigmented tumors in the Syrian golden hamster following the application to the skin of a single dose of the carcinogen 9,10dimethyl-l,2-benzanthracene. These tumors were sharply demarcated and located in the dermis and subcuta...
متن کاملStudies of skin carcinogenesis in the Syrian golden hamster.
The carcinogens 9,10-dime thy 1-1,2-benzanthracene, 20-methylcholanthrene, 3,4benzpyrene, 1,2,5,6-dibenzanthracene, 1,2-benzanthracene, and 2-anthramine have been tested topically in the Syrian golden hamster. The mouse skin tumor-promoting agents, croton oil and polyoxyethylene sorbitan monostearate (Tween 60), have been tested on hamster skin following a single applica tion of 9,10-dimethyl-l...
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ژورنال
عنوان ژورنال: Toxicologic Pathology
سال: 2015
ISSN: 0192-6233,1533-1601
DOI: 10.1177/0192623315607668