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This review discusses immune privilege in anagen hair follicles and its collapse in alopecia areata, emphasizing the importance of restoring this function for effective management and disease relapse prevention.

This study provides the first direct evidence that spermidine can stimulate hair growth and modulate human epithelial stem cell biology in cultured human hair follicles.

This review discusses the mechanisms behind alopecia areata and primary cicatricial alopecia and reports no new clinical results, aiming to guide the development of targeted treatments.

This study found that berberine supplementation improved gut microbiota composition and reduced obesity-related hepatic inflammation and oxidative stress in genetically obese mice.

In this study, LHX2 and SOX9 were found to mark distinct epithelial progenitor cell populations within human hair follicles, suggesting roles in maintaining the hair follicle epithelium.

In this study, researchers found that the human hair follicle microbiota vary by anatomical compartment and donor age, with specific microbes like S. epidermidis potentially influencing hair follicle functions, which suggests new avenues for therapeutic targeting.

This study highlights that while hair follicle cycling is primarily influenced by growth factors like IGF-1 and Wnt signals, the role of cytokines in normal human hair growth and cycling is less understood.

This study found that GDNF promotes hair formation and skin wound repair by enhancing the self-renewal and differentiation of bulge stem cells in mice.

In this study, researchers identified Tenascin-C as a marker for touch dome keratinocytes, which maintain themselves and can develop into Merkel cells following injury, showing they share molecular traits with various epidermal keratinocytes.

This study found that human induced pluripotent stem cells differentiated precisely to express certain markers during a specific window could enable successful hair follicle generation when transplanted.

This study found that in a neonatal rat model, skin wounding protected against chemotherapy-induced alopecia through IL-1β signaling, making hair follicles more resistant to damage when wounding exposure was timed correctly.

This study compared RNA-seq results from horse plucked-hair and skin-biopsy samples, finding that plucked hairs were enriched with hair-follicle keratinocytes, while biopsies showed enrichment for other cell types.

This study found that low-passage exosomes from dermal papilla cells enhance hair follicle stem cell proliferation and that miR-218-5p may serve as a potential biomarker and therapeutic target for hair growth.

This study examined hair follicles from 14 Caucasian males and found that catagen-phase follicles were more prevalent (7.5%) than previously reported, challenging the established view that telogen-phase follicles are more common.

In this study, the researchers found that their conductive bio-harvesting tonic enhanced hair follicle proliferation and delayed regression with electric stimulation and the antifungal agent 6-pentyl-α-pyrone in both mice and human hair follicle tests.

This review highlights the potential of nanotechnology for hair follicle regeneration, focusing on strategies such as hair cycle modulation, progenitor cell stimulation, and wound-induced hair neogenesis, while also discussing regulatory challenges that may affect the development of these innovative approaches.

This review discusses various tissue engineering approaches for hair follicle regeneration and biomaterials used, emphasizing its potential despite current clinical challenges.

Allergic contact dermatitis may promote hair growth by activating hair follicle stem cells.

This study found that their newly developed ADRL framework significantly improved the accuracy of scalp tissue layer segmentation in HR-MR images compared to existing methods.

This study found that different stabilizing mutations in Aux/IAA proteins affect root hair development in Arabidopsis by disrupting the auxin response and suggest a model where the relative abundance of these proteins determines root hair initiation.

This case study reports a previously undescribed cause of drug-induced autoimmune hepatitis triggered by para-aminobenzoic acid (PABA), emphasizing the need for caution with this supplement.

In an in-vitro study, researchers found that a specific concentration of Aloe Vera combined with injectable platelet-rich fibrin (i-PRF) significantly increased hair follicle stem cell proliferation compared to Aloe Vera or i-PRF alone, indicating potential benefits for alopecia treatment.

This study reports a strong association between the MICA locus, specifically the MICA∗3-DR∗6-DQ6 haplotype, and Alopecia Areata in families.

In this study, tofacitinib showed a mixed response in treating refractory alopecia areata, with some patients experiencing complete or partial hair regrowth and others showing no response, particularly those with alopecia universalis.

This study indicates that MAGE-11 modulates androgen receptor transcriptional activity through F-box interactions, independent of the activation function 2 pathway, revealing a novel mechanism for androgen receptor regulation.

This study found that long-term exposure to high pH extends root hair elongation by altering actin filament arrangements and vesicle trafficking, but disrupting ADF8/11 function shortens root hairs by affecting these processes.

Finasteride may help treat frontal fibrosing alopecia, but more research is needed.

This study found that stabilizing HIF1A in balding hair follicle cells shifted their metabolism towards glycolysis, reducing oxidative stress and potentially promoting hair growth.

In this study, acupuncture therapy targeting specific points significantly reduced hair loss in women aged 31-50 with androgenic alopecia.

This study identified novel compound heterozygous mutations in the hairless gene among a non-consanguineous Chinese family with congenital atrichia, illustrating phenotypic variations due to founder or modifier genes.