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This study found that mutations in exon 3 of the hr gene are strongly associated with congenital hypotrichosis in Valle del Belice sheep, suggesting a potential genetic link to the disorder.

In this mouse study, topical 1,25-dihydroxyvitamin D3 protected against cyclophosphamide-induced hair loss and inhibited mammary tumor growth, with effects varying by sex and tumor presence.

Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.

This case report describes novel trichoscopic features of anagen effluvium caused by azathioprine in a patient with normal TPMT levels, emphasizing the importance of regular monitoring for adverse effects.

This review discusses the roles and mechanisms of thymosin β4 in hair follicle growth and development but reports no new experimental findings; the authors emphasize the need for further research on its molecular pathways.

This chapter hypothesizes that vitamin D signaling in the skin may suppress UV radiation-induced epidermal tumor formation, reviewing potential mechanisms without reporting new clinical results.

In this study, insulin-like growth factor-1 did not impact hair follicle elongation in rat pelage hair follicles, while transforming growth factor-beta 1 inhibited both elongation and thymidine uptake.

This study found that several small molecule peptides based on thymosin β4 significantly promoted cell proliferation related to wound healing, angiogenesis, and hair growth more effectively than established positive controls.

This study successfully established an immortalized human dermal papilla cell line that maintains characteristics of original cells without malignant transformation, potentially benefiting hair research.

This communication reports previously unreported side effects, severe bullous dermatosis and onycholysis, in three patients undergoing high-dose methotrexate and leucovorin calcium therapy, impacting their chemotherapy schedules.

This study found that trans-3,4'-Dimethyl-3-hydroxyflavanone reduces active TGF-beta2 levels in human keratinocytes, suggesting it may enhance hair growth by suppressing the TGF-beta2 activation pathway.

This study found that low-dose topical alpha-terthienyl combined with UVA radiation can induce cutaneous photosensitization in guinea pigs, suggesting a possible photochemotherapy approach for skin diseases like psoriasis.

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 suggests that the vitamin D receptor and hairless gene may directly regulate each other via a transcriptional mechanism, potentially explaining phenotypic similarities between atrichia and VDRRIIa rickets.

This study found that the evodiamine derivative 2-16 exhibited the highest antitumor activity and a broad spectrum of activity against various human cancer cell lines, with improved solubility.

In this study, NMN was found to reverse hair follicle atrophy, thinning, and sparsity in mice induced by DHT, and significantly decreased DHT-induced inflammation and oxidative stress in cultured human dermal papilla cells, enhancing hair growth-related markers.

This study found that hemoglobin α is upregulated in epidermal keratinocytes after UV exposure and may function as an antioxidant, particularly for hair follicle stem cells.

This study found that tetracycline can adhere to hair follicle structures and disrupt cell metabolism, potentially damaging healthy human cells as well as pathogens.

Human hair follicles have their own thyroid hormone system.

This study reports that 2-(1-Adamantyl)-4H-thiochromen-4-on-6-O-sulfamate is the most potent steroid sulfatase inhibitor identified so far, exhibiting 170-fold higher activity than the lead compound estrone sulfamate.

In this study, high concentrations of dihydrotestosterone and testosterone reduced the growth of human hair follicle cells in vitro, while high estradiol levels increased their growth.

This review discusses the molecular mechanisms and clinical applications of thymosin β4, highlighting its potential benefits for inflammation, wound healing, tumor metastasis, and other medical conditions but reports no new experimental results.

This review summarizes recent research and patents on 17β-HSD3, 17β-HSD5, and 3α-HSD3 inhibitors, suggesting their potential in treating androgen-dependent diseases, but reports no new clinical results.

This investigation examined the hypothesis that thyroid hormones in hair contribute to hair growth by supplying iodine, but it presents no new results.

This case report describes common thyroid disorders in a β-thalassemia patient with frequent blood transfusions, emphasizing the need for monitoring thyroid function in such patients.

This study found that a 1% concentration of thyme oil was more effective at killing Demodex mites in vitro than higher concentrations of tea tree and sage oils, suggesting thyme oil may have therapeutic potential for ocular demodicosis.

Dithranol reduces inflammation in alopecia areata by lowering certain immune responses.

This study identified a group of dermal fibroblasts near hair follicle stem cells in mice that facilitate hair regeneration by creating a biomechanically compliant extracellular matrix, enhancing stem cell activation and promoting a positive feedback loop for tissue regeneration.