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This review discusses the sex differences in neuroactive steroid synthesis and their implications for nervous system functions and potential therapeutic approaches, but it provides no new experimental results.

In this study, researchers found that human ovaries at different life stages biosynthesize both canonical and non-canonical steroid hormones, with fetal ovaries showing higher enzyme activity related to estradiol and testosterone conversion compared to adult tissues.

This article summarizes findings on the role of androgens and estrogens in male reproductive tissues across species, highlighting the roles of hormone metabolism, receptor distribution, and stress-induced changes.

This study presents a new LC-MS/MS method that allows for more accurate detection of seven steroid hormones in human hair, enhancing the specificity and reliability of hormone analysis in psychoneuroendocrinological research.

This study found that disrupting the PRL gene in mice alters the timing of hair cycling events, causing earlier molts and changes in hair characteristics, particularly affecting female mice more significantly.

In this study, prenatal androgen exposure was linked to altered sexual behaviors in both male and female mice, with specific effects on mounting and lordosis behaviors.

This study found that gene expression patterns can effectively distinguish the cashmere growth cycle stages and highlight molecular pathways, suggesting melatonin's role in regulating cashmere growth in Inner Mongolian goats.

This study concluded that IGF-I receptors are present on hair follicles and sebaceous glands of cashmere and Angora goats, but melatonin receptors are absent.

This study introduces genital sex differentiation parameters (GSDP) to analyze sexual differences in external genitalia and perineum development in mice, revealing varied sensitivity to androgen inhibition in genital structures.

This review discusses the skin's role as a peripheral endocrine organ, highlighting its complex hormonal interactions and the endocrine functions it performs, but reports no new findings.

This study found that progesterone enhances the survival of newborn neurons in the hippocampus of adult male mice, which is associated with improved spatial learning and memory.

This study suggests that epitestosterone may play a role in regulating androgen-dependent processes like prostate growth and body hair distribution by counteracting testosterone's actions.

This study involving 81 yaks found significant correlations between melatonin, dihydrotestosterone, and immunoglobulin levels in blood serum and mineral content in hair, suggesting these factors may jointly influence yak hair growth and immune status, providing a potential non-invasive indicator of overall health.

This research found that androgen bioactivity plays a role in normal female sexual differentiation, suggesting females develop within a significant androgenic environment, with implications for understanding conditions like congenital adrenal hyperplasia.

In this study, researchers found that disrupting the PRL gene in mice led to earlier hair molting, especially in females, suggesting that PRL inhibits murine hair cycle events.

In this study, researchers observed that reproductive experience in female rats altered fear memory and medial prefrontal cortex (mPFC) activity, with pregnant and parous rats showing impaired fear recall compared to nulliparous controls, highlighting the influence of pregnancy-related neurosteroids on cognitive function and brain activity.

In this study, women with a complete hydatidiform mole had significantly higher pre-evacuation levels of hCG, free testosterone, and DHEA-S compared to controls, which declined after HM evacuation.

This study observed that higher childhood levels of DHEAS were associated with more advanced pubertal development and correlated with changes in DNA methylation near puberty-related genes in both boys and girls, potentially explaining the hormone's influence on puberty.

This study suggests that red deer stags provide a novel model for investigating hormonal regulation of hair growth due to the different cell growth rates in hair follicles during breeding and nonbreeding seasons.

In this study, using scRNA-seq, researchers detailed the gene expression and cell differentiation processes in goat fetal horn buds, identifying crucial roles for dermal and epithelial cells in horn initiation and highlighting potential genetic factors involved in horn morphogenesis.

This study observed that developing mammary organs in Monodelphis domestica show mammary hairs in 12-week-old females, which disappear by 18 weeks, with findings suggesting shared characteristics between their nipples and eutherian nipples, supporting the evolutionary link between mammary glands and hair organs.

This study found that the progesterone metabolite 3α-THP increased the proliferation and gene expression of human glioblastoma cells, suggesting a role in tumor progression.

This study found that human scalp hair follicles produce neurohormones and responded to GHRH stimulation by prolonging hair growth, suggesting a functional peripheral HPS neuroendocrine signaling axis in the skin.

This study found that the FOS gene may play a significant role in promoting hair follicle development in Tan sheep, with elevated expression during the Er-mao period.

This study found no correlation between clinical signs and sex steroid levels in ferrets with hyperadrenocorticism and noted that androstenedione was elevated in many cases.

This study found that extreme morning and evening chronotypes exhibited significant differences in the timing of circadian clock gene expression in hair follicle cells.

Coconut oil boosts testosterone but doesn't fully trigger reproductive maturity in pufferfish.

This study found that stimulating olfactory receptor OR2AT4 in human hair follicles with Sandalore® may slow catagen development and reduce keratinocyte apoptosis, suggesting potential implications for hair growth management.

This study found that in mink, the pituitary gland is essential for normal seasonal pelage cycles, and manipulating hormone levels can affect hair growth and type.