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This study found that periodic intratesticular PRP administration may slightly enhance testicular development in male lambs, indicated by increased testicular blood flow, length, and reduced resistance index compared to saline.

This case report describes an extremely rare instance of seminoma in an adult with SRY-negative 46,XX testicular disorder of sex development, uniquely presenting as acute abdomen due to gonadal torsion.

This study suggests that in gilthead seabream, DHT is involved in the onset of the meiotic phase of spermatogenesis and influences serum levels of E2 through regulation of aromatase activity.

This case report describes a rare instance of a Chinese Crested dog with leukocyte chimerism, normal female external genitalia, and hormonally active Sertoli cell tumors, demonstrating surgery as a curative treatment option.

This case study reports that hormonal imbalances in a young boy with precocious pseudopuberty returned to normal after the removal of a testicular interstitial cell tumor, with normal spontaneous puberty following.

This study found that finasteride treatment of male rats led to changes in their male offspring's testicular gene expression, potentially affecting sperm function in response to odorant-like signals.

This study found that boys in Mexico City with selenium intake below the recommended dietary allowance had lower odds of progressing to advanced stages of pubertal development, while no association was observed in girls.

This article reviews various aspects of puberty, particularly focusing on the staging of sexual maturity and the factors influencing pubertal onset, but reports no new empirical results.

Understanding genes and hormones is crucial for managing male puberty and sex development disorders.

Finasteride negatively affects fish reproduction and gonadal development.

The researchers reported that finasteride treatment in male rats may lead to changes in antioxidant enzyme activity in their offspring's epididymis, potentially affecting sperm maturation.

In this research, Sertoli cell line model ST38c demonstrated that the androgen receptor regulates hormone pathways through specific coregulators, suggesting roles for SRC-2 and HBO1 in testicular development and androgen responsiveness.

This study found that exposure to certain pesticides may be associated with delayed sexual maturation in adolescent males.

This review discusses the structure and function of the testes in male reproduction and development, noting the complex hormonal regulation within the hypothalamic-pituitary-gonadal axis but reports no new clinical results.

This report describes a 19-year-old male with 49,XXXXY syndrome receiving testosterone replacement therapy, which led to improvements in reproductive development, metabolism, and social interaction after a year of treatment.

This study suggests that high proliferative activity and peripheral invasion are key indicators of malignancy in canine sebaceous gland tumours. It also reports a higher incidence of circumanal gland and testicular tumours, indicating a possible androgen-related pathway in tumour development.

This chapter reviews the biosynthesis, mechanism of action, and therapeutic effects of testosterone and related androgens, but reports no new research findings.

Testicular microlithiasis may increase the risk of testicular cancer and patients with it should be closely monitored.

This research found that the widely used herbicide atrazine may alter Northern leopard frog development, affecting metamorphosis success, sex ratio, and hormone-related gene expression.

This study found that deleting the ATR gene in adult mice led to rapid onset of age-related traits such as hair graying and osteoporosis through reduced regenerative capacity.

This case report identifies a novel association between Graham Little–Piccardi–Lassueur syndrome and complete androgen insensitivity syndrome, suggesting the influence of androgens in the alopecias accompanying the former may be limited.

In this cohort study of young Danish men, self-reported older age at voice break was linked to certain reproductive hormone changes that suggest reduced male fecundity, but associations with semen characteristics and testicular volume were not statistically significant.

Environmental factors and exposure to toxins may contribute to male infertility by affecting sperm and hormone function.

In this study of male patients with 46,XY 5α-reductase type 2 deficiency, DHT therapy was effective in achieving penile enlargement during infancy, while testosterone replacement therapy proved more beneficial during puberty, possibly due to increased conversion to DHT.

A stronger dual 5α-reductase inhibitor could improve treatment for benign prostatic hyperplasia by further reducing DHT levels.

This article discusses the impact of the tabby mutation on secondary vibrissae and hair follicle patterns in mice and reports no new clinical results.

This review discusses recent data on the use of anabolic-androgenic steroids and other steroid compounds and reports no new clinical results.

This study investigated the modes of action of selected pesticides, suggesting that prochloraz and tebuconazole are linked to reproductive disorders via steroidogenesis disruption, while mancozeb involves inflammatory processes.

This study found that feeding norethindrone acetate to albino rats over two years caused various dose-related health effects, such as growth retardation and liver changes, but did not increase overall tumor incidence.

This review discusses the hormonal and pathological factors contributing to gynecomastia and premature thelarche in children but presents no new clinical findings; the authors emphasize the need for careful evaluation.