Zobrazeno 1 - 10
of 76
pro vyhledávání: '"G. F. Weinbauer"'
Publikováno v:
Primate Biology, Vol 7, Pp 1-4 (2020)
Enhanced pre- and postnatal development (ePPND) studies have become the default developmental toxicity test for biopharmaceuticals if nonhuman primates represent the relevant species. Spontaneous pregnancy losses and infant deaths can be significant
Externí odkaz:
https://doaj.org/article/36270d4747ae4e108a1bb54b245bbd2b
Autor:
R. Behr, G. F. Weinbauer
Publikováno v:
International Journal of Andrology. 24:126-135
CREM is a cAMP-related transcription factor and alternate promotor usage and splicing generate repressor and activator transcripts of CREM within the testis. CREM activators are highly expressed in post-meiotic haploid germ cells and are essential fo
Publikováno v:
Journal of Endocrinology. 168:25-38
We have investigated the antigonadotropic and antispermatogenic effects of exposure to a long-acting testosterone ester in the cynomolgus monkey model. Groups of five adult animals were exposed either to vehicle or to 10 mg/kg or 20 mg/kg testosteron
Publikováno v:
Journal of Endocrinology. 165:337-344
We investigated a possible modulation of growth hormone (GH) secretion by testosterone by measuring the growth hormone releasing hormone (GHRH)-stimulated and N-methyl-d,l-aspartic acid (NMA)-induced GH secretion in adult rhesus monkeys. Intact, orch
Autor:
J. Wessels, G. F. Weinbauer
Publikováno v:
Andrologia. 31:249-262
Spermatogenesis is a remarkably complex but precise process yielding highly differentiated haploid germ cells from diploid stem cells. Although many factors have been implicated in the paracrine control of spermatogenesis, functional proof is only av
Publikováno v:
Clinical Endocrinology. 51:139-146
IntroductionUnder normal conditions male reproduction in mammalsrequires four distinct components which have to interact in aconcerted fashion with female reproductive functions toguarantee successful procreation:•sperm as the actual carrier of gen
Autor:
G. F. Weinbauer, Hanumanthappa Krishnamurthy, M. Arslan, G. Rosiepen, Eberhard Nieschlag, H. Aslam, G. Clemen
Publikováno v:
Journal of Endocrinology. 161:281-288
Although the gonadotropic control of the spermatogenic process is well established, the endocrine regulation of the timing and kinetics of germ cell development has received little attention. We found previously that the administration of a GnRH anta
Publikováno v:
Journal of Endocrinology. 159:103-110
The effects of bovine inhibin, testosterone and GnRH on gonadotrophin secretion by primate pituitary cells were characterized in vitro using pituitaries from six male rhesus monkeys and one male cynomolgus monkey. The effect of inhibin on basal secre
Publikováno v:
Journal of Endocrinology. 156:23-34
Meiosis constitutes a crucial phase of spermatogenesis since the recombination of genetic information and production of haploid round spermatids need to be achieved. Although it is well established that gonadotrophic hormones are required for complet
Publikováno v:
Molecular Human Reproduction. 4:9-15
Mice lacking the functional cAMP responsive element modulator (CREM) gene, a component of cAMP-mediated signal transduction, exhibit a specific arrest of round spermatid development although follicle stimulating hormone (FSH) and androgen secretion a