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This systematic review reports that "COVID toes" and other skin manifestations can be initial signs of COVID-19, and advises immunosuppressive therapy adjustments only for infected or at-risk patients.

In this study, researchers found that human scalp hair, particularly when unwashed, can significantly react with ozone, reducing personal ozone exposure and increasing exposure to volatile reaction products.

This study found that platelet-rich plasma did not significantly improve hair mass index or hair count in women with female androgenetic alopecia, though some patients perceived benefits in hair quality.

This study found that NF-κB signaling may connect injury response to regenerative processes in zebrafish hearts, potentially aiding the development of cardiac regenerative therapies in humans.

This study found that procyanidin oligomers, particularly dimers and trimers, significantly promoted hair growth in mice and hair epithelial cell cultures, suggesting potential use as hair growth agents.

This study found that three genetic loci, including the newly identified JMJD1C, are associated with circulating testosterone and dihydrotestosterone levels, explaining a small portion of their variance in European men.

This study observed a temporal association between tamsulosin use for benign prostatic hyperplasia and an increased risk of severe hypotension requiring hospital admission during the first eight weeks of treatment initiation and restart.

This review discusses current techniques for scalp reconstruction following oncologic surgery and reports no new clinical outcomes, emphasizing the importance of tailored approaches for satisfactory closure.

This article reviews historical and recent developments related to toxic shock syndrome (TSS), emphasizing the increase in cases among young women using tampons, and calls for new research tools but does not report new results.

This study concluded that sebaceous glands are the main pathway for the antiandrogen RU 58841 to permeate the skin, with liposomes enhancing localization in these glands.

This study established a new in vitro culture system that supports the growth and dynamic self-organization of hair follicle stem cells and their progeny, promoting a stable population equilibrium.

This review discusses the causes, clinical presentation, and management of anagen effluvium, emphasizing its psychological impact and the need for empathy and practical support, but reports no new results.

This study reported that chemical relaxants and hair styling practices were associated with scarring hair loss, particularly among women with central centrifugal cicatricial alopecias.

Hair can regrow after certain stem cells are lost because other stem cells can take over their role.

This study demonstrates that canonical Wnt signaling is crucial for maintaining thymic epithelial microenvironments in postnatal thymus, possibly by affecting TEC progenitor cells.

This study found that skin microbiota, particularly in wild-type mice, promotes wound-induced hair follicle neogenesis and wound healing, highlighting the potential downsides of routine antibiotic use on skin regeneration.

This study highlights that the mammalian target of rapamycin complex 2 (mTORC2)-Akt signaling axis is essential for hair follicle stem cells to return to their niche and regenerate effectively by regulating metabolic pathways.

This retrospective review found that while intralesional corticosteroids provided symptomatic improvement for lichen planopilaris, hydroxychloroquine with topical corticosteroids led to higher remission rates but did not result in visible hair regrowth.

This study found that temperature affects the influence of daylength on prolactin secretion and hair growth in dairy goats, without significant involvement of melatonin.

Among obese women potentially eligible for combined oral contraceptives, this study observed a higher frequency of non-alcoholic fatty liver disease in those with polycystic ovary syndrome.

This study observed that Ptprq mutant mice exhibit significant abnormalities in hair bundle structure and vestibular dysfunction, suggesting similar issues may contribute to hearing loss and vestibular problems in humans with PTPRQ mutations.

This study found that dexamethasone-loaded Eudragit® L 100 nanoparticles displayed controlled drug release depending on pH levels, with minimal toxicity to human fibroblasts.

This study found that the signaling peptide CLE40 and receptor proteins CLV2 and CRN regulate root meristem differentiation through two distinct, antagonistic pathways activated by CLE40 in a dose-dependent manner.

This study found that leukocytes and beard hair follicle cells have an endogenous circadian clock, with PER1 and PER3 expression possibly serving as biomarkers for assessing individual biological clock traits.

This study found that a testosterone patch and gel showed bioequivalent testosterone levels in hypogonadal men, but the patch mimicked a natural circadian profile, while the gel resulted in higher dihydrotestosterone levels.

In this study, bimatoprost solution showed better results than corticosteroid in terms of rapidity, percentage of hair regrowth, and side effects for treating scalp alopecia areata.

This study found that local refinement of hair follicles into higher order patterns can occur without the core planar cell polarity system, but global alignment with body axes requires its function throughout development and regeneration.

This study found that both alopecia areata and androgenetic alopecia moderately reduced the quality of life for Chinese patients, especially in younger individuals and those experiencing hair loss for over a year.

This study found no statistically significant association between the use of 5α-reductase inhibitors and male breast cancer incidence.

The study found that among young Brazilian women, the likelihood of metabolic syndrome in those with PCOS is strongly associated with BMI and the phenotype involving menstrual irregularity and hyperandrogenism.