Results 141 to 150 of about 16,408 (183)
Some of the next articles are maybe not open access.
Indoleamine Metabolism in the Pineal Gland of the Chinese Hamster,Cricetulus griseus
General and Comparative Endocrinology, 1998Day- and nighttime contents of pineal melatonin and other indoleamines were measured in the Chinese hamster, Cricetulus griseus. The hamsters were inbred in our colony and kept in LD 14:10. Absolute levels of pineal melatonin and N-acetylserotonin contents were extremely low, but showed a significant circadian rhythm with a minor peak during the light ...
T, Harumi, S, Matsushima
openaire +2 more sources
Reproductive Senescence in the Chinese Hamster (Cricetulus griseus)
Journal of Gerontology, 1982The female Chinese (C.) hamster (Cricetulus griseus) exhibits a progressive decline in litter size after the third litter. The mean number of litters produced was 4.9 +/- .5 for 25 C. hamsters, and the mean age of the C. hamsters at the time of delivering the last litter was 16.4 +/- .5 months. Most aged C.
openaire +2 more sources
Radiation Mortality in the Chinese Hamster, Cricetulus griseus, in Relation to Age
Radiation Research, 1972Chinese hamsters (Cricetulus griseus) were given whole-body x-radiation at 1, 3, 7, 15, 30, 71, 100, 150, and 250 days of age. Probit dose-mortality curves, ${\rm LD}_{50(30)}$ values, and mean survival times were determined for each age. The ${\rm LD}_{50(30)}$ values were lowest at 1 day of age (635 rads), increased rapidly to a peak of 983 rads at ...
B C, Ward +3 more
openaire +2 more sources
Fertilization and early development in the Chinese hamster, Cricetulus griseus
The Anatomical Record, 1968AbstractEggs from 79 Chinese hamsters, Cricetulus griseus, were examined at various times from before ovulation on the day of mating (Day 0) to implantation (Days 5–6). The animals were kept under reversed lighting (dark period 8 AM to 8 PM). Ovulation occurred between approximately 4 and 6 PM; mean number of eggs recovered per female was 7.6 ± 0.2 ...
S, Pickworth, G, Yerganian, M C, Chang
openaire +2 more sources
The carcinogenic effect of dimethylnitrosamine on the chinese hamster (Cricetulus griseus)
Cancer Letters, 1975Three groups of Chinese hamsters (20 males, 20 females/group) received weekly subcutaneous injections for life of dimethylnitrosamine (DMN) at dose levels 0.20, 0.10 and 0.05 of the LD50. Eighty-two to 100% of the animals developed tumors of vascular origin. The neoplasms were primarily hepatic hemangioendotheliomas and their incidence was unrelated to
openaire +2 more sources
Peculiarities of liver regeneration in Chinese hamster Cricetulus griseus
Cell and Tissue Biology, 2012With the aid of cytofluorimetry and interference microscopy, the ploidy level and the hepatocyte ploidy class distribution were studied and the dry mass of hepatocytes was measured in hepatocytes in liver of Chinese hamsters Cricetulus griseus and of Balb/c mice before and one month after partial hepatectomy. The mean ploidy level in hepatocytes of the
G. A. Sakuta +3 more
openaire +1 more source
Banding studies in Cricetulus griseus Milne-Edwards, 1867
Cytogenetics and Cell Genetics, 2008Representative R- and G-banded karyotypes of Cricetulus griseus and an idiogram based on the banding patterns at the 575-band stage are presented.
Y. Shibasaki, M. Rønne
openaire +1 more source
Intraocular signet‐ring cell melanoma in a hamster (Cricetulus griseus)
Veterinary Ophthalmology, 2011AbstractA two‐and‐a‐half year‐old male Chinese hamster (Cricetulus griseus) was referred for evaluation of an intraorbital mass involving the right eye.Based on ophthalmic examination and ultrasonography, a diagnosis of intraocular neoplasia was made. Enucleation of the affected eye was performed.
Leandro, Lima +3 more
openaire +2 more sources
Neurogenesis in the basal forebrain of the Chinese hamster (Cricetulus griseus)
Anatomy and Embryology, 1979The time of neuron origin has been determined in the basal ganglia and related basal forebrain structures of the Chinese hamster with the aid of 3H-thymidine autoradiography. Large-celled structures like the globus pallidus, nucleus of the horizontal limb of the diagonal band of Broca as well as large cells in the rostral part of the substantia ...
H J, ten Donkelaar, P J, Dederen
openaire +2 more sources
Culture of pre-implantation chinese hamster (Cricetulus griseus) embryos in vitro
Mutation Research, 1977Pre-implantation embryos from Chinese hamsters (Cricetulus griseus) were cultivated under completely defined conditions. The embryos were placed in drops of chemically defined medium under liquid paraffin and cultured in an atmosphere of 10% CO2 in air.
A, Basler, G, Röhrborn
openaire +2 more sources