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This study reports that oophorectomy significantly reduces serum testosterone levels in postmenopausal women, indicating the postmenopausal ovary's continued production of testosterone.

This study found that neurosteroids influence oxytocin secretion in sheep, particularly during stress and pregnancy, suggesting their role in protecting and maintaining pregnancy under harmful conditions.

This source describes the first successful use of a deslorelin acetate implant to treat alopecia X in a neutered female dog, achieving profuse hair regrowth in 9 months, suggesting an uncomplicated and cost-effective alternative after melatonin failure.

This study found that treatment with the pure antiandrogen Flutamide did not affect the estrous cycle or plasma levels of most hormones in female rats, supporting its potential use for treating hirsutism, acne, and alopecia in women.

This report describes two cases of alopecia in neutered female ferrets linked to neoplastic tissue at the site of an ovarian pedicle, suggesting an ovarian origin for the tumors.

In this case study, an 8-year-old female Huacaya alpaca displaying male behavior was diagnosed with an ovarian benign interstitial (Leydig) cell tumor, indicated by elevated testosterone levels.

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

This study found that women with polycystic ovary syndrome have more pronounced metabolic alterations and higher androgen levels compared to women with eumenorrheic hyperandrogenism, suggesting EuHyperA may be a milder form of PCOS.

This case report describes the diagnosis and management of a 15-year-old girl with complete androgen insensitivity syndrome, highlighting the importance of thorough physical exams for early detection and treatment planning.

This study suggests that the regulation of GABA‐A δ subunit expression by ovarian progesterone-derived neurosteroids may influence seizure susceptibility in catamenial epilepsy.

In studying wild meerkats, researchers observed that matriarchs with high androgen levels during late gestation exhibited increased dominance and aggression, affecting both their behavior and their offspring's aggression.

Using testosterone-stimulated weanling rats can effectively replace castrated rats for anti-androgen testing, reducing animal stress.

This review discusses the roles of androgens in female mammals, focusing on how androgen receptor activity in pig reproductive organs may influence ovulation rate and litter size, but reports no new experimental results.

This review discusses the physiological roles of ovarian androgens in follicle development and atresia, emphasizing their contributions to polycystic ovary syndrome and normal follicle maturation but provides no new clinical results.

This study found that finasteride treatment in adult hamsters led to significant testicular alterations and reduced spermatogenesis compared to untreated controls.

In this study on short-term flutamide treatment in mice, no significant changes were observed in estrous cycle phases, but further research is needed to explore potential reproductive effects.

This study used the "ARE-Luc" mouse model to visualize androgen receptor activity across various tissues in both male and female mice, highlighting the direct action of androgens outside reproductive organs.

This case report identifies a novel AR gene mutation in an adolescent with primary amenorrhea, suggesting that CAIS should be considered when evaluating patients with a female phenotype and breast development.

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 found that in newborn rats, progesterone's effects on apnoea frequency are influenced by a sex-specific balance between its metabolite allopregnanolone and progesterone receptors.

This study found that testosterone administration reduced the expression of uterine receptivity molecules in ovariectomized rats, which may negatively affect early pregnancy establishment and female fertility.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

In this study, researchers observed that telogen hair was more prevalent than anagen hair in both male and female agoutis over a one-year period in Teresina-PI, regardless of dry or rainy seasons, with no significant differences in dermal follicular volume between the sexes.

This study found that ovariectomized and finasteride-treated rats showed significant tear film deficiency and downregulation of sex steroid receptors in ocular tissues, suggesting potential models for studying dry eye disorders.

This article reviews the causes and management strategies for amenorrhea and reports no new clinical results, with treatment typically based on the underlying cause, including hormonal therapy and lifestyle changes.