Focko F. G. Rommerts

TL;DR: It is concluded that isolated spermatocytes and round sper matids may utilize lactate, perhaps secreted by Sertoli cells, as the main source of energy.

TL;DR: It is demonstrated that seminiferous tubules from both the rat and the stumptailed macaque contain a factor which has LHRH-like receptor-binding and biological activity in vitro, but which is immunologically distinct from native LHRh.

TL;DR: It is concluded that the activity and survival of pachytene spermatocytes in vitro can be regulated by the supply of lactate from Sertoli cells.

TL;DR: It is suggested that pyruvate and lactate are major products from Sertoli cells which can support synthetic activities in germ cells, and the present results indicate thatpyruvates may play a role in the hormonal regulation of spermatogenesis.

TL;DR: Androgen-induced calcium fluxes and gap junctional intercellular communication (GJIC) were studied in three different cell types to postulate the existence of an alternative cell surface receptor system with biphasic response characteristics (high and low affinity).