Endocrine Abstracts

Immature testicular tissue was successfully xenografted in several species but did not lead to spermatogenesis with tissue obtained from the non-human primate Callithrix jacchus. Previous data indicate that the microenvironment provided by the mouse host might cause this failure. We conducted an in vivo study performing autologous ectopic transplantation of testicular fragments in newborn anaesthetised marmoset monkeys and compared transplanted animals to sham op...

Evaluation of male fertility, based on semen analysis, is complicated by high variability of semen parameters and the lack of evidence-based reference values. The standards are currently set by the WHO laboratory handbook (1999). We investigated whether taking into account abstinence time and testicular volume would reduce variation in sperm concentration / count and thereby consolidate the underlying principles of spermatogenesis.The database of our Ins...