Fish are the most diversified group of vertebrates and, although progress has been made in
the past years, only relatively few fish species have been examined to date, with regards to …

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 …

Abstract d-Aspartate (d-Asp) is an endogenous amino acid present in the central nervous
system and endocrine glands of various animal taxa. d-Asp is implicated in …

PACAP is a neuropeptide with diverse functions in various organs, including reproductive
system. It is present in the testis in high concentrations, and in addition to the stage-specific …

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 …

Reproduction is one of the most crucial physiological processes for the continuation of the
generation of any species. Teleost are one of the most divergent aquatic species. The …

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 …