Although there have been few demonstrations of a direct empirical relationship between environmental enrichment and reproductive success in captive animals, indirect and anecdotal evidence indicates the importance of physical and temporal complexity for reproduction. We discuss three major mechanisms through which environmental enrichment that specifically increases the complexity of an animal'...

INTRODUCTION REPRODUCTIVE PHYSIOLOGY ANTERIOR PITUITARY TESTES FEEDBACK CONTROL OF GONADOTROPINS PROLACTIN AND GONADOTROPINS ANDROGEN PHYSIOLOGY HORMONAL CONTROL OF SPERMATOGENESIS DIAGNOSING ENDOCRINE ABNORMALITIES: CLINICAL FINDINGS SEMEN ANALYSIS BASELINE HORMONE EVALUATION DYNAMIC HORMONAL TESTING CLASSIFICATION OF ENDOCRINE CAUSES OF INFERTILITY PRIMARY HYPOGONADISM SECONDARY HYPOGONADISM ...

INTRODUCTION REPRODUCTIVE PHYSIOLOGY ANTERIOR PITUITARY TESTES FEEDBACK CONTROL OF GONADOTROPINS PROLACTIN AND GONADOTROPINS ANDROGEN PHYSIOLOGY HORMONAL CONTROL OF SPERMATOGENESIS DIAGNOSING ENDOCRINE ABNORMALITIES: CLINICAL FINDINGS SEMEN ANALYSIS BASELINE HORMONE EVALUATION DYNAMIC HORMONAL TESTING CLASSIFICATION OF ENDOCRINE CAUSES OF INFERTILITY PRIMARY HYPOGONADISM SECONDARY HYPOGONADISM ...

INTRODUCTION REPRODUCTIVE PHYSIOLOGY ANTERIOR PITUITARY TESTES FEEDBACK CONTROL OF GONADOTROPINS PROLACTIN AND GONADOTROPINS ANDROGEN PHYSIOLOGY HORMONAL CONTROL OF SPERMATOGENESIS DIAGNOSING ENDOCRINE ABNORMALITIES: CLINICAL FINDINGS SEMEN ANALYSIS BASELINE HORMONE EVALUATION DYNAMIC HORMONAL TESTING CLASSIFICATION OF ENDOCRINE CAUSES OF INFERTILITY PRIMARY HYPOGONADISM SECONDARY HYPOGONADISM ...

INTRODUCTION ....................................................................................................................................................... 1 BIOENERGETICS ....................................................................................................................................................... 2 Energy flow .....................................................

INTRODUCTION REPRODUCTIVE PHYSIOLOGY ANTERIOR PITUITARY TESTES FEEDBACK CONTROL OF GONADOTROPINS PROLACTIN AND GONADOTROPINS ANDROGEN PHYSIOLOGY HORMONAL CONTROL OF SPERMATOGENESIS DIAGNOSING ENDOCRINE ABNORMALITIES: CLINICAL FINDINGS SEMEN ANALYSIS BASELINE HORMONE EVALUATION DYNAMIC HORMONAL TESTING CLASSIFICATION OF ENDOCRINE CAUSES OF INFERTILITY PRIMARY HYPOGONADISM SECONDARY HYPOGONADISM ...

A commentary is offered on the chapters that comprise the section on Theoretical Foundations, emphasizing novel contributions of each. Three additional points are then made. First, while the biology of reproductive aging may be common to all human populations, its actual course can be expected to vary between individuals and between populations depending on ecological conditions and development...

OBJECTIVES The objective of this study was to evaluate physical and sexual development and reproductive physiology in female rat offspring that developed in hyperglycemia conditions in utero and during lactation. MATERIALS AND METHODS Maternal diabetes was induced in female rats by a single IV injection of streptozotocin before mating. Female offspring development was evaluated by means of th...

* XdAdT and CC contributed equally to this study § Present address: Reproductive Physiology Group, Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, CB2 3EG, UK. Corresponding author: Vincent Prevot, Ph.D., Inserm U837, Bâtiment Biserte, Place de Verdun, 59045 Lille Cedex, France Tel : +33 320-62-20-64 Fax : +33 320-53-85-62 E-mail : vincent.prevot@inse...

Genetic and cell biological analyses of sperm behavior in the female reproductive tract are providing important clues to the mechanisms of sperm competition, a form of sexual selection that is an important force that shapes reproductive behavior, physiology and morphology in a wide range of species.