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This study found that feather patterning is primarily self-organizing and dynamic, relying on both genetic and epigenetic controls, with implications for similar processes like fingerprints and pigmentation.

This study found that thyroid hormones T3 and T4 enhance keratin 15 promoter activity and stimulate CD200 expression in epithelial stem cells from human scalp hair follicles, affecting their growth and differentiation.

This review highlights current evidence showing that hormonal changes significantly influence skin aging, with estrogen decline during menopause having a major impact on women's skin health, while testosterone decreases contribute to aging in men.

Early-onset hair loss in Egyptian males is linked to genetics, hormones, and lifestyle factors like smoking and diet.

The authors clarified data overlap and corrected a figure error, apologizing for any confusion.

This study found that while the steroid mechanisms influencing androgenetic alopecia may be similar for men and women, differences in enzyme activity and receptor content could explain their varied clinical presentations.

This study found that thyrotropin-releasing hormone (TRH) acts as a potent stimulator of hair growth in human scalp hair follicles, promoting elongation and prolonging the anagen phase.

This study found that switching juvenile mice from a high-fat, high-carbohydrate diet to a control diet optimally reduced hormonal imbalances and weight, with nutraceuticals offering partial support.

This study indicates that higher thyroid-stimulating hormone levels may be linked to post-COVID-19 hair loss in women, while ferritin levels showed no significant correlation.

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 serum Anti-mullerian hormone (AMH) levels are significantly elevated in women with polycystic ovary syndrome and can serve as a useful biomarker for diagnosis, especially when ultrasonography is unavailable.

In this study, α-MSH and cyclic AMP were found to stimulate melanogenesis in hair follicle cultures, while cyclic GMP and melatonin inhibited melanin production but not tyrosinase activity.

This review found that combined oral contraceptives and spironolactone are effective treatments for adult acne in women, but noted that oral contraceptives increase the risk of venous thromboembolism and require individual risk assessment before use.

This review examines hormonal influences on acne development and available hormonal therapies but reports no new clinical results.

In this study, epilation in female rats generally accelerated hair eruption, especially in successive cycles, with variations influenced by hormonal treatments and timing within the hair growth cycle.

This study found that oral contraceptives, particularly those combining ethinyl estradiol with progestins like drospirenone and cyproterone acetate, are effective in treating androgen-related skin conditions such as acne, hirsutism, and androgenetic alopecia by reducing excess androgens and sebum production.

Sex hormones affect reproduction, sexual development, and oral health, and it's important for dental practitioners to understand their effects and interactions.

This review discusses hormones that affect acne and highlights a statistically significant link between a low-glycemic-load diet and reduced acne activity, but reports no new experimental findings.

This case report from a German study detailed a 2-year-old girl with virilization and precocious puberty due to a rare ovarian steroid cell tumor, finding that post-surgery, her elevated hormone levels normalized within a week, and ongoing follow-up showed no need for chemotherapy.

This study reports that among young women, combined oral contraceptives containing chlormadinone, among others, are associated with an increased risk of venous thromboembolism compared to those containing levonorgestrel with low ethinylestradiol.

This review discusses chronic telogen effluvium, focusing on the potential role of hormonal fluctuations and circadian control genes, and reports no new clinical findings.

This review explores the mechanisms of intratesticular control of steroidogenesis and indicates the need for further controlled studies; it presents no new experimental findings.

This study found that the pituitary gland is crucial for normal pelage color cycles in weasels, with certain hormones influencing regrowth of pigmented or white hair after molting.

This study found that an 8-month treatment with a low-dose oral contraceptive significantly reduced testosterone levels and hair growth in women with polycystic ovary syndrome and hirsutism, with minimal side effects.

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.

This study reported that both phlebotomy and oral contraceptive pills with cyproterone acetate effectively improved insulin resistance and androgenic profiles in women with PCOS, but OCs had more impact on regularizing menstrual cycles.

This study suggests that age, androgenetic alopecia, metabolic syndrome, and free testosterone levels may significantly affect sexual function in premenopausal women.

This article discusses the effectiveness and indications of sex hormone therapy for various skin disorders and emphasizes the importance of avoiding androgen-effective contraceptives, but reports no new clinical results.

In this review, the authors explored how various hormones, particularly IGF-1, GH, estrogens, retinoids, and melatonin, influence human skin aging, highlighting potential new avenues for anti-aging therapies beyond the currently utilized topical retinoids and estrogens.

This review discusses the complex hormonal control of keratin expression in skin and its potential implications for treating skin and hair disorders, but reports no new clinical results.