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This study suggests that miniaturization in pattern hair loss may occur abruptly and can be reversed with treatment, as supported by histologic evidence in finasteride-responsive patients.

This review examines the adaptive value and mechanisms of seasonal coat colour moulting in birds and mammals, highlighting the challenge of camouflage mismatch and the necessity for evolutionary adaptation under climate change.

Hair loss linked to higher heart disease risk in both men and women.

This study suggests that melatonin plays a role in hair follicle function by modulating growth and pigmentation, and it may act as a protective agent in active hair growth phases.

This study identified a distinct "exogen" phase in the hair cycle during which hair shedding occurs, primarily coupled with the anagen phase, rather than as part of the telogen phase.

This study found that parents of women with PCOS have a higher prevalence of insulin resistance and Type II diabetes than parents of healthy women.

This review discusses the possible impacts of prolactin on skin conditions like psoriasis, alopecia, and stress-related dermatoses, emphasizing the need for further research to explore its therapeutic potential.

This review explores the hormonal regulation of hair growth and changes with season, age, and sexual development, and calls for improved treatments for hair disorders.

This article reviews the diagnostic criteria and prevalence of PCOS, emphasizing its status as the most common endocrine disorder among women of reproductive age, with no new clinical results reported.

This study found that beard hair medulla cells express an unexpected range of keratins, showing variability and promiscuous behavior in keratin interactions distinct from other hair follicle cells.

Many COVID-19 survivors experience long-term symptoms like fatigue and sleep issues, needing ongoing medical support.

This article reviews the potential impact of melatonin on hair growth, noting its benefits observed in animals, but reports no clinical results in humans to date.

This article discusses treatment approaches for female pattern hair loss and concludes that available medical treatments are effective in reversing or stabilizing the condition in most cases of mild-to-moderate severity.

This article reviews the role of stem cells in tissue development, tumor formation, and organoid generation, and highlights the potential of epigenetic regulation in advancing regenerative medicine and cancer treatment, without presenting new experimental results.

This review found that lifestyle changes, such as diet and exercise, are beneficial for managing metabolic and endocrine abnormalities in obese patients with PCOS and suggests combining these with anti-obesity agents for enhanced effects.

This study found a significant association between androgenetic alopecia and metabolic syndrome, highlighting high-density lipoprotein cholesterol as a particularly important factor.

This review discusses how macro-environmental factors such as intradermal adipose tissue and sex hormones influence hair and feather stem cell niches, suggesting environmental targets for regenerative medicine, but reports no new clinical results.

This review discusses oxidative stress's role in polycystic ovary syndrome and examines various biomarkers to understand its impact on the disorder's pathogenesis, but reports no new clinical results.

This study found that prolactin is a key regulator of keratin expression in human hair follicles, enhancing specific keratin types and influencing epithelial stem cell-associated keratins.

This review discusses the potential causes and treatments for frontal fibrosing alopecia but reports no new clinical findings, highlighting the need for further research to understand its pathogenesis and develop validated treatments.

This review discusses various substances that can impact male fertility and stresses that products should be confirmed 'sperm-safe' through rigorous testing, not assumptions; it reports no new study results.

This review discusses the complex interaction between androgens and hair follicle biology, highlighting the need for a better understanding to improve hirsutism treatments, but reports no new results.

This study introduces the concept of teloptosis, which influences hair shedding during the telogen phase and affects hair density, highlighting that early or delayed teloptosis has noticeable effects.

This study found that 62% of neutered dogs with hair cycle arrest experienced partial to complete hair re-growth after melatonin treatment, but hair re-growth was not consistently linked to normal sex hormone levels.

This article proposes three mechanisms by which dihydrotestosterone may contribute to baldness but reports no new research findings.

This study identified the location of the genetic locus for the slick hair coat trait in cattle on bovine chromosome 20, which may contribute to heat tolerance.

This study concluded that an endogenous circannual rhythm of prolactin secretion in mouflon influences their seasonal hair growth and moulting cycle, which varies under different photoperiodic and melatonin treatments.

This review discusses various techniques for evaluating hair shedding and alopecia but reports no new clinical results. The authors emphasize the value of specific clinical and instrumental methods in assessing hair growth.

This review discusses hormonal influences on hair growth and suggests that understanding hormone-gene interactions may improve treatment of hirsutism and alopecia, but reports no new clinical findings.

This review discusses the role of estrogens in hair follicle cycling and the skin, highlighting the need for more research on estrogen signaling pathways and their interactions with other factors in hair biology.