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This study suggests that proteins CHI3L1 and CXCL5, secreted by recovery-state dermal papilla cells, may promote hair growth by stimulating the proliferation of outer root sheath cells.

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

In this study, Panax ginseng extract and its ginsenosides were found to stimulate the proliferation of hair-related cells and promote the transition from the telogen to the anagen phase, enhancing hair-shaft growth by suppressing BMP4 expression in human dermal papilla cells.

This study found that DPCP immunotherapy effectively treats alopecia areata, identifying factors that influence treatment response and patient satisfaction, which may aid in standardizing the treatment for improved outcomes.

This review highlights the variability and unpredictability of alopecia areata, ranging from single scalp patches to total body hair loss, and notes the 2022 approval of the first AA-specific drug, baricitinib, potentially spurring new research into targeted treatments.

In this study, researchers found that exosomes derived from dermal sheath cup cells (Exo DSCCs) improved proliferation, viability, and migration while reducing apoptosis in senescent dermal papilla cells, also enhancing hair follicle reconstruction and suggesting a potential strategy for combating senile alopecia.

In this study involving rat vibrissa follicles, U. japonica extract was found to enhance hair growth by increasing dermal papilla cell proliferation and accelerating the anagen phase but did not inhibit 5α-reductase activity, which is linked to androgenetic alopecia.

This study found that urotensin II promoted proliferation and VEGF secretion in rat dermal papilla cells by activating the Wnt-β-catenin signaling pathway, with the effect being reversible by a Wnt inhibitor.

This study concluded that both DPCP alone and combined with PRP are effective and safe for treating severe alopecia areata, with no significant difference between the two treatment methods.

In this report, a 46-year-old woman's sudden diffuse hair loss was diagnosed as granulomatous alopecia areata, with spontaneous hair regrowth observed after two months. This case highlights that granulomatous inflammation should not exclude the diagnosis of alopecia areata, emphasizing the importance of clinicopathological correlation.

This review discusses the hormonal impact on hair growth and the relationship between endocrine disorders and hair changes, reporting no new clinical results.

This study found that Cyclosporin A may prolong the anagen phase of hair growth in cultured dermal papilla cells by decreasing TGF-β2 expression, similar to its mechanism in immunosuppression.

In this case report, a 9-year-old boy with diffuse alopecia areata showed improvement with topical diphencyprone immunotherapy, suggesting it as a safe and effective treatment option in pediatric cases of alopecia areata resistant to other therapies.

This study found that diphenylcyclopropenone (DPCP) was more effective and better tolerated than dinitrochlorobenzene (DNCB) in promoting hair regrowth in patients with alopecia areata.

This source describes a previous case report that combined anthralin and calcipotriene to treat alopecia areata, showing promising results, but highlights that further research is needed to understand the mechanisms and potential benefits of this combination therapy.

In this study, stress hormone CRF was found to inhibit hair growth, suggesting that the HPA axis is functional in human dermal papilla cells and contributes to hair loss under stress conditions.

In this study, 60% of patients with alopecia totalis showed partial hair regrowth after being treated with triamcinolone acetonide injections, with one patient achieving complete regrowth and responding well to further immunotherapy.

This study found that ocu-miR-205 promotes changes in signaling pathways and shifts in hair follicle phases, affecting Rex rabbit hair density by increasing secondary follicles.

This study showed that the stress hormone CRF inhibits hair growth and induces hair loss by affecting both the proliferation of human dermal papilla cells and hair follicle function.

This study found that oral dutasteride increased hair density but not thickness in female-pattern hair loss patients, suggesting a potential mechanism involving β-catenin activity.

This chapter discusses pediatric disorders like alopecia areata and vitiligo, identifying laser and light therapies as treatment options, and highlights that the pulsed dye laser is well tolerated and effective for treating molluscum contagiosum.

Hair regrowth was seen in 83% of children with alopecia, immune system plays a role in the condition, and various treatments showed effectiveness for hair and nail disorders.

This phase 2a trial evaluated Samcyprone for common wart treatment and found that while a sensitization reaction is necessary for therapeutic response, its level does not predict wart clearance.

In this study, triamcinolone acetonide injections led to partial hair regrowth in 60% of alopecia totalis patients, suggesting potential benefits when followed by immunotherapy.

This study suggests that Tenebrio molitor larvae extract may promote hair growth and prevent hair loss by enhancing cell proliferation and protecting against cytotoxicity in laboratory settings.

This study explores the expression and function of 11β-HSD1 in human hair follicles and its potential regulation of glucocorticoid effects on dermal papilla cells, but reports no definitive findings on 11β-HSD1's role.

This study found that fermented mackerel oil increased hair growth by promoting dermal papilla cell proliferation and cell cycle progression through wnt/β-catenin signaling activation in vibrissa follicles.

This study found that cultivating dermal papilla cells in spheroids or with valproic acid most effectively preserves their phenotype in vitro, compared to a monolayer culture with BMP6 and vitamin D3, which only produces a short-term effect.

This study suggests that Grateloupia elliptica extract may promote hair growth by activating wnt/β-catenin signaling and fostering dermal papilla cell proliferation.

This study found that Grateloupia elliptica extract may promote hair growth by activating wnt/b-catenin signaling and enhancing dermal papilla cell proliferation in rat and mouse models.