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This study reports that hair regeneration in live mice involves spatially regulated stem cell divisions and requires mesenchymal interactions, observed in real-time using a novel non-invasive imaging method.

This review discusses guidelines for androgen use in women and concludes that more research is needed before recommending testosterone due to insufficient evidence on safety and efficacy.

This article reviews the role of epithelial-mesenchymal interactions in hair follicle morphogenesis and the hair cycle, suggesting potential paths for developing treatments for hair growth disorders but providing no new clinical findings.

This review explores recent advances in understanding molecular mechanisms of tissue regeneration in mammals and suggests potential therapeutic targets, but it reports no new clinical results.

This review examines the direct-to-consumer genetic testing market, highlighting the available tests, regulatory issues, and calls for increased oversight, and reports no new results.

This review discusses the importance of early diagnosis and the management of hidradenitis suppurativa, reporting no new clinical results but highlighting current therapeutic approaches and need for collaboration in treatment.

This review discusses persistent adverse effects of 5α‐reductase inhibitors, like diminished libido and erectile dysfunction, in some patients and highlights the need for patient discussions before therapy, especially for androgenetic alopecia.

This review provides a comprehensive overview of melatonin's physiological roles, effects, and clinical implications, but it does not present new experimental findings.

This study identified a set of wound-induced genes in planarians that play a role in regeneration initiation, with some genes specifically activating within regenerative cells called neoblasts.

This study found that lifestyle interventions improved body composition, hyperandrogenism, and insulin resistance in women with PCOS, but did not affect glucose tolerance, lipid profiles, or clinical reproductive outcomes.

This study found significant species differences in the enzyme activity and inhibitor affinities of prostatic 5α-reductases from rats, dogs, and humans, with variable potencies for different 3-oxo-4-azasteroid inhibitors across species.

This article reports electron microscope studies on the structure of hair and wool, but it does not present new clinical findings.

This study found that 94% of healthy men reported low libido and 92% reported erectile dysfunction as persistent sexual side effects after using finasteride for male pattern hair loss, with these effects lasting on average 40 months post-discontinuation.

This study found that macrophages near hair follicles contribute to the activation of skin epithelial stem cells in mice, suggesting a novel role for macrophages in regulating hair growth.

Dermatoscopy and videodermatoscopy are useful for diagnosing and monitoring various skin, hair, and nail conditions.

Humans lost body hair relatively recently in evolution.

This review discusses nonclassical 21-hydroxylase deficiency as the most common autosomal recessive disorder in humans and highlights the effectiveness of glucocorticoid treatment in reversing related symptoms.

This review discusses the immune roles of keratinocytes in wound healing and chronic wound inflammation, emphasizing their potential impact on chronic wound pathology and highlighting areas for future research.

This review discusses the WNT signaling pathway's involvement in human diseases and highlights recent advances in WNT-related treatments, but it presents no new research findings.

This review discusses the cellular and molecular changes involved in cutaneous wound re-epithelialization and EMT, highlighting their similarities and differences, but reports no new clinical results.

This study observed that keratose, derived from human hair, integrated well in mouse tissue and remodeled with collagen, suggesting potential as a non-toxic biomaterial for regenerative applications.

Male pattern hair loss could hint at androgens affecting COVID-19 severity.

This study found that RXRα/RARγ heterodimers are necessary for retinoic acid-induced keratinocyte proliferation in the skin, while normal epidermal maintenance does not require RAR-mediated signaling.

This review discusses the functions and potential therapeutic targeting of TRP ion channels in the skin, noting their involvement in both physiological processes and various pathological conditions, but reports no new experimental results.

This study reports that miR-302 promotes pluripotency by inhibiting NR2F2 and indirectly regulating OCT4 in stem cells, enhancing reprogramming efficiency when added to traditional factors.

This essay discusses the establishment, maintenance, and role of skin stem cells in tissue homeostasis, wound repair, and their relation to skin cancer, without reporting new experimental findings.

This review explores the biology of wool follicles and suggests their potential use as research models in modern biology, but it reports no new findings.

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.

In this study, significantly fewer men treated with finasteride for moderate to severe BPH symptoms experienced acute urinary retention or required subsequent BPH-related surgery compared to placebo-treated patients.

This study concluded that daily treatment with 1 mg finasteride did not affect spermatogenesis or semen production in young men and had small, reversible effects on prostate volume and serum PSA.