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Laser light-scattering study of the toxic effects of methylmercury on sperm motility
methylmercury spermatozoa motility Macaca fasicularis laser light-scattering
2009/2/23
An in vitro study was designed using the laser light-scattering technique to obtain further information on the dose-effect relationship of methylmercury on sperm motility. The technique provided a q...
Periodic exposure to a brief light signal stimulates neuroendocrine-gonadal activity in golden hamsters
photoperiodism circadian rhythms hamsters seasonal reproduction neuroendocrine-gon
2009/2/20
The photoperiodic effects of a periodic light pulse on neuroendocrine-gonadal activity in the male golden hamster was examined using a night interruption paradigm. Adult male hamsters that had been ho...
Spermatic granulomata are experimentally induced in epididymides of mice receiving high-dose testosterone implants. I. A light-microscopical study
Spermatic granulomata high-dose testosterone
2009/2/18
It is known that a spermatic granuloma is induced by the inflammatory reaction following leakage of spermatozoa outside the germ cell ducts and is the main clinical complication of vasectomy. In t...
Spontaneous degeneration of testicular germ cells in congenitally athymic nude mice of four strains：a light microscopical observation
Spontaneous degeneration testicular germ cells
2009/2/17
Many hormonal studies have demonstrated that the presence of thymic factors affects testicular function. However, morphological studies on the testis in the absence of thymic factors are very limite...
Experimental cryptorchidism in the adult mouse：I. Qualitative and quantitative light microscopic morphology
Testis Leydig cells stereology hyperplasia,hypotrophy
2009/2/6
Morphologic changes in the testes of adult mice after experimentally induced cryptorchidism were studied by light microscopy and stereology. Increasing duration of cryptorchidism resulted in a gradu...
Gene Expression in the Spermatogenically Inactive “Dark”and Maturing“Light”Testicular Tissues of the Prepubertal Colt
Gene regulation testis spermatogenesis puberty
2008/12/22
In the testis of the 1.5-year-old horse, spermatogenesis initiates locally in grossly light, central areas that contrast with grossly dark, peripheral areas that are as yet inactive in spermatogenes...
Paternal Age Over 40 Years：The“Amber Light”in the Reproductive Life of Men?
Paternal Age Over 40 Years The“Amber Light” Reproductive Life Men
2008/12/19
In industrialized countries, many couples are choosing to delay childbearing, and the proportion of couples having children after age 30–35 years has increased. This has highlighted the effect of age ...