Spermatogenesis is a genetically driven differentiation process that occurs in the testis and
leads to the formation of spermatozoa. This process is extensively studied in several …

Spermatogenesis is an extraordinarily complex process, regulated by several factors, which
leads to the differentiation of spermatogonia into spermatozoa. Among vertebrates, several …

The quail Coturnix coturnix is a seasonal breeder with a physiological switch on/off of
gonadic activity. Photoperiod and temperature are the major environmental factors …

Vasoactive-intestinal peptide (Vip) is a pleiotropic peptide with a wide range of distribution
and functions. Zebrafish possess 2 isoforms of Vip (a and b), in which Vipa is most …

ABSTRACT P450 aromatase is a key enzyme in steroidogenesis involved in the conversion
of testosterone into 17β-estradiol. We investigated the localization and the expression of …

The goal of this study was to evaluate P450 aromatase localization in the epididymis of two
different vertebrates: the lizard Podarcis sicula, a seasonal breeder, and Rattus rattus, a …

Abstract Steroidogenic Acute Regulatory protein (StAR), 3β-hydroxysteroid dehydrogenase
(3β-HSD), 17β-hydroxysteroid dehydrogenase (17β-HSD), 5α-Reductase (5α-Red), P450 …

Résumé VIP and its receptors (VPACRs) are largely investigated in vertebrate testis, as well
as their functions in the control of spermatogenesis and steroidogenesis. By contrast, a few …

Pituitary adenylate cyclase-activating peptide (PACAP) is a neuropeptide that in mammalian
testis is involved in the control of testosterone and 17β-estradiol synthesis. A similar …

Pituitary adenylate cyclase-activating peptide (PACAP) is a neuropeptide involved in
multiple functions, including vertebrate reproduction. Recently, we reported the presence of …