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This review discusses the association between androgen receptor gene polymorphism and PCOS, reporting mixed findings on whether shorter or longer CAG repeats are linked to the disorder; it provides no new results and calls for further studies.

This abstract lists key topics related to non-genomic steroid effects and protein interactions, but reports no new research findings.

This study found that the mechanical stiffening of the human hair follicle along the first millimeter is linked to changes in the keratin network architecture and composition during keratinization.

This study concluded that bleach treatment partly transforms the hydrophobic top layer of human hair cuticles into a hydrophilic surface with clustered cysteic acid, visualized at the nano-scale using dynamic Chemical Force Microscopy.

In this study, epidermal growth factor (EGF) was shown to increase the length of rat organ of Corti segments containing supernumerary hair cells, with the effect peaking at birth and independent of cell division.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

This study's simulations revealed the complex "onion-like" organization of a lipid nanoemulsion droplet containing vitamins A and E for skin delivery, showing distinct concentration patterns of these vitamins within different layers of the nanodroplet.

This study found that A-ring reduced derivatives of norethisterone and levonorgestrel exhibit estrogen-like potency in rat osteoblasts, suggesting a mechanism for 19-norprogestins' bone restoration effects in postmenopausal women.

This study demonstrated that a microarray patch can deliver antibodies in a controlled and prolonged manner, maintaining their functionality after manufacturing and heat exposure, with successful pharmacokinetic proof-of-concept in rats.

A male patient developed frontal fibrosing alopecia after antiandrogen therapy for prostate cancer.

This study using an apertureless scanning near-field optical microscope found that dye restricted to hair's periphery remains mainly on the surface and in the endocuticle.

This preclinical study observed that a nanoencapsulated ingredient complex, AcPi, may prevent hair follicle aging and hair loss by reducing oxidative stress, enhancing mitochondrial activity and WNT/β-catenin signaling, and controlling androgenic metabolism when tested on human scalp cultures.

In this study, intradermal injections of 0.5% minoxidil significantly improved hair growth and volume in women with female androgenetic alopecia compared to a placebo, with a good safety profile reported.

This study found that androgens downregulate BMP2 in dermal papilla cells, inhibiting hair follicle stem cell differentiation, while BMP2 addition may restore hair lineage differentiation through the Wnt/β-catenin pathway.

This report highlights the successful treatment of skin and nail manifestations in a patient with primary hypothyroidism using levothyroxine, emphasizing the role of cutaneous symptoms in identifying thyroid disease.

This study found that Merkel cells in dogs are most numerous in sensory receptive areas like oral mucosa and facial skin, indicating a potential role in tactile sensation.

This study observed that in adult mice, a cell-autonomous size control mechanism involving the RB pathway determines the timing of S phase entry in epidermal stem cells based on their size, while external microenvironment factors influence growth rates but not this intrinsic coupling.

This case report describes a potential drug-induced localized scleroderma in a Persian cat following the application of a 'spot-on' treatment.

This study found that ethanolic, aqueous, and hydroethanolic extracts of Tridax procumbens inhibited mitosis and caused mutagenic effects on cell division in Allium cepa root meristematic cells.

This study identified the expression of 5αR1 and 5αR3 enzymes in canine skin, which may advance understanding and treatment of alopecia X.

This study concluded that the GIANT brain atlas, which integrates genetic and neuroanatomical variations, provides a more accurate representation of brain structure than traditional neuroanatomical atlases, allowing for better exploration of genetic influences on the brain.

This study reported that Pantaneiro sheep from the Pantanal region of Brazil exhibit greater genetic variability and adaptability compared to the commercial Texel breed, highlighting their potential for further research and importance in Brazilian sheep farming.

According to this study, nearly one-third of the participants experienced Long COVID, highlighting ongoing concerns about the disease's long-term implications despite the pandemic being under control.

Diffuse alopecia areata in children has unique features and needs specific treatment.

This study identified several rare genetic variants related to insulin resistance in women with PCOS, highlighting the potential for monogenic conditions in patients with extreme or atypical phenotypes.

This study found that women with PCOS had significantly higher hair cortisol concentrations, suggesting hyperactivation of the HPA axis may affect metabolic and inflammatory markers in those with elevated cortisol levels.

Hair movement can indicate hair quality and health.

Brunfelsia uniflora has good antioxidant properties and moderate antibacterial activity.

This review discusses the potential of dental stem cells from deciduous and permanent teeth for tissue regeneration and reports no new experimental results.

This study observed that, in mouse ear epidermal stem cells, a cell-autonomous size control mechanism involving the RB pathway dictates S phase entry timing based on cell size, despite external environmental variations affecting growth rates.