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This review discusses the physiological process of adrenarche, its impact on behavior and skeletal maturation, and its variability across sex and race, but reports no new clinical results.

This study found that in male yaks, 5α-red1 may play a crucial role in synthesizing DHT to promote hair follicle growth, while E2 synthesized by epithelial cells may inhibit this growth through ERα.

This review suggests that brassinosteroids may have similar biological activities in both plants and other organisms, prompting further exploration of steroid regulation mechanisms across different life forms.

This study identifies key transcriptomic features and a necessary dermal niche for eccrine gland development, advancing potential regenerative approaches for these vital skin appendages.

Testosterone boosts fluid and electrolyte secretion in seminal vesicles, aiding sperm function.

This study suggests that an in ovo injection of CHIR-99021 promoted feather growth and follicle development in goose embryos by activating the Wnt signaling pathway.

This study on Antirrhinum trichomes found that stickiness in A. hispanicum is due to a recessive allele and mapped it to a specific region on Chromosome 1, while baldness in A. siculum likely involves a novel hairy allele.

In this study, the authors concluded that androgens, but not estrogens, strictly mediate the maintenance of neuromuscular morphology in the spinal nucleus of the bulbocavernosus in adult rats.

This study identified two novel genes, pmg-1 and pmg-2, expressed in various skin and gland tissues and potentially involved in the differentiation of epithelial cells in epidermal appendages.

This study found weak to very weak correlations between estradiol, progesterone, and testosterone levels in the cerebrospinal fluid and serum of males without cerebral disorders.

This study found that four new progesterone derivatives reduced prostate weight in gonadectomized hamsters, suggesting potent in vivo antiandrogenic effects similar to finasteride.

This review discusses the role of norepinephrine release and protein kinase C activation in the development of benign prostatic hypertrophy, suggesting potential targets for new therapies, but it reports no new clinical results.

This study found that prepubertal girls have significantly higher levels of estrogens and androgen metabolites compared to age-matched boys, which may contribute to their earlier onset of puberty.

In this study, researchers observed that testicular 17β-hydroxysteroid dehydrogenase deficiency in an inbred Arab population in Israel leads to genital ambiguity at birth and progressive virilization after puberty.

This paper discusses mechanisms by which various chemicals disrupt male sexual differentiation, concluding that mixture risk assessments should include a broader set of compounds beyond phthalates to address cumulative reproductive health risks.

This article reviews how photoperiod, melatonin, and prolactin influence moult timing in mammals, focusing on cashmere goats, but reports no new experimental findings.

This study found that 5 alpha-dihydrotestosterone increased pigmentation in dorsal spots and scrotal skin of prepubertal male Syrian hamsters, while estradiol decreased scrotal skin melanocytes and reversed androgen-induced pigmentation in costovertebral spots.

This study found that water-soluble beehive extract exhibited anxiolytic, antidepressant, and anti-inflammatory effects in animal models.

This study found that skin is a significant site for estrogen production in mice, impacting both hair cycle regulation and sensitivity to chemical carcinogenesis.

This study using high-performance liquid chromatography reported that mice with more diverse gut microbiota had higher levels of specific compounds in hair compared to those with less diversity, with stress affecting certain plasma levels.

This study found that compound 10 inhibited testosterone conversion to DHT in hamster flank organs and seminal vesicles, whereas compound 11's inhibitory effect varied with dose, linked to halogen electronegativity differences.

This study identified five master regulators that mediate molecular differences in hair follicle development and sexual dimorphism in the skin, providing insights into male pattern baldness and hair follicle donor dominance.

This study of monozygotic transgender male twins observed that consistent hormone therapy led to physical changes such as deepening voice and increased facial/body hair, with no reported mood-related adverse effects.

This study investigated m6A RNA modification in hair follicle development, finding that Hycole rabbits displayed longer hair, higher primary hair follicle ratios, and thicker skin compared to Rex rabbits, while also identifying key differential genes and pathways involved in hair growth.

This study found that the transcription factor Trps1 acts as a novel regulator of the Wnt signaling pathway and early hair follicle progenitors in developing vibrissa follicles in mice.

This study developed a method using UHPLC-MS/MS and MSPE to detect trace amounts of sex hormones in cosmetics, finding progestins and estrogens in some products, and performed a preliminary safety evaluation for residual progesterone in hair loss prevention cosmetics.

In this study, significant elevations of DHA and testosterone were associated with pubic hair development and voice changes in boys during puberty.

This study found that Hex gene expression patterns in chick embryo dorsal skin during feather bud development suggest a significant role in initiating feather morphogenesis.

In this study on Drosophila wings, researchers identified 435 genes with significant expression changes during wing hair morphogenesis, and found new phenotypes for 9 genes through functional validation.

This study found that progesterone can increase glycine release in rat brainstem neurons through its conversion to allopregnanolone, which modulates presynaptic GABA receptor activity.