Morphological Changes of Developing Duodenal Villi in Golden Hamsters
نویسندگان
چکیده
منابع مشابه
Morphological studies of angiosarcomas induced by 1,2-dimethylhydrazine dihydrochloride in Syrian golden hamsters.
Studies were made on the morphological characteristics of blood vessel tumors induced by the p.o. lifetime administra tion of 0.001% 1,2 dimethylhydrazine dihydrochloride in Syrian golden hamsters. The lesions were classified as angiosarcomas. They occurred in 89% of the females and 82% of the males (with decreasing frequency) in liver, lungs, muscle, heart, and pancreas. Gross, light, and elec...
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Pentoxifylline (PF) is used to enhance motility of spermatozoa from infertile human subjects. We have previously shown that 0.45 mM PF improved capacitation of spermatozoa and fertilization of oocytes in vitro in hamsters. The present study was carried out to assess PF-induced changes in motility kinematics of hamster spermatozoa by a computer-aided sperm analyser (CASA) and determine the timin...
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Aggressive behavior can be studied as either offensive or defensive responses to a stimulus. The studies discussed in this review are focused on the peripubertal development of offensive aggression in male golden hamsters and its responsiveness to repeated social stress. Quantitative and qualitative changes in offensive responses were analyzed during this period. Quantitative changes in offensi...
متن کاملCircadian regulation of cortisol release in behaviorally split golden hamsters.
The master circadian clock located within the hypothalamic suprachiasmatic nucleus (SCN) is necessary for the circadian rhythm of glucocorticoid (GC) release. The pathways by which the SCN sustains rhythmic GC release remain unclear. We studied the circadian regulation of cortisol release in the behaviorally split golden hamster, in which the single bout of circadian locomotor activity splits i...
متن کاملGolden hamsters are nocturnal in captivity but diurnal in nature.
Daily activity rhythms are nearly universal among animals and their specific pattern is an adaptation of each species to its ecological niche. Owing to the extremely consistent nocturnal patterns of activity shown by golden hamsters (Mesocricetus auratus) in the laboratory, this species is a prime model for studying the mechanisms controlling circadian rhythms. In contrast to laboratory data, w...
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ژورنال
عنوان ژورنال: The Japanese Journal of Veterinary Science
سال: 1979
ISSN: 0021-5295,1881-1442
DOI: 10.1292/jvms1939.41.151