Gonadal development and reproductive hormones in infant boys

Effects of Prenatal Lipopolysaccharide Exposure on Reproductive Activities and Serum Concentrations of Pituitary-Gonadal Hormones in Mice Offspring

Testicular size development and reproductive hormones in boys and adult males with Noonan syndrome: a longitudinal study.

OBJECTIVE To characterise changes in testicular size and reproductive hormones and to investigate the aetiology of delayed puberty and impaired fertility in males with Noonan syndrome (NS). DESIGN In this study, 12 males with NS were longitudinally followed from pre/early puberty until adulthood. Of the 12 males, ten had no medical history other than NS and were divided into two groups, undes...

Gonadal hormones masculinize and defeminize reproductive behaviors during puberty in the male Syrian hamster.

Three experiments were conducted to test whether testicular hormones secreted during puberty masculinize and defeminize the expression of adult reproductive behavior. Experiment 1 tested the hypothesis that gonadal hormones during puberty masculinize behavioral responses to testosterone (T) in adulthood. Male hamsters were castrated either before puberty (noTduringP) or after puberty (TduringP)...

Reproductive enhancement in buffalo: looking at urinary pheromones and hormones

The success of conception in buffalo is greatly dependent on precise estrus detection and time of artificial insemination (AI). Various visual, behavioral, biochemical and gyneco-clinical parameters have been tracked closely and a cost-effective combinatorial model has been developed to detect estrus in buffaloes. Pheromones play pivotal roles in reproduction and behavior of mammals. Urine, an ...

Gonadal Hormones and Retinal Disorders: A Review

Aim Gonadal hormones are essential for reproductive function, but can act on neural and other organ systems, and are probably the cause of the large majority of known sex differences in function and disease. The aim of this review is to provide evidence for this hypothesis in relation to eye disorders and to retinopathies in particular. Methods Epidemiological studies and research articles we...