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This study found that 1,25-dihydroxyvitamin D3 promotes hair growth and regeneration in mice by prolonging the anagen phase and counteracting DHT's inhibitory effects, suggesting its potential therapeutic role for androgenetic alopecia.

This study reports that hair follicles can mobilize ectopic progenitors for regeneration to repair damage from ionizing radiation. Augmenting WNT signaling enhanced this regenerative process and prevented radiation- and chemotherapy-induced hair loss, highlighting a potential approach to manage alopecia during cancer treatment.

MCSP may help identify and regulate skin stem cells, affecting hair growth and regeneration.

In this study of mouse hair follicles, Raptor was specifically expressed in hair follicle stem cells, while Rictor was mainly found in inner root sheath cells, indicating distinct roles in hair growth stages.

The researchers reported that applying proteolytic enzymes to mice skin negatively affected hair follicles, leading to degeneration and potential impairment of stem cells from the bulge area.

In this study, proteolytic enzymes applied to mice skin caused severe degeneration in hair follicles, including detachment of stem cells from their niche, suggesting potential impairment of stem cell function.

Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.

The study demonstrated that bulge stem cells from rat vibrissa follicles respond to adult dermal papilla signals, inducing hair bulb formation and regenerating hair structures in vivo.

This study suggests that targeting the activation of transit-amplifying cell-derived progenitor cells may help prevent hair loss from chemotherapy and radiotherapy by promoting hair follicle regeneration.

This study found that transgenic mice expressing HPV E6/E7 in the outer root sheath experience continuous hair follicle cycling due to delayed catagen entrance and insensitivity to telogen resting signals.

This article reviews the potential of stem cell-derived exosomes as a therapeutic approach for androgenic alopecia, noting their advantages over traditional cell therapy in repairing and regenerating hair follicles to address hair loss.

This study found that nestin-expressing unipotent progenitor cells capable of differentiating into outer root sheath keratinocytes are present during hair follicle development and in adult hair follicles.

This study concluded that while the terpenoid fraction of M. jalapa's root extract increased growth factor expression in wound healing, it may lead to hypertrophic scars by prolonging the proliferation phase.

This study found that hair loss in an Olmsted syndrome mouse model with a Trpv3 mutation was linked to premature keratinocyte maturation, affecting hair follicle structure and function.

This study reveals that stem cell descendants in mouse hair follicles can return to their niche to retain stemness and function as primary stem cells for future hair cycles.

This study found that keratinocytes derived from the germinative epithelium of ovine hair follicles have extensive in vitro growth potential, challenging the idea that these cells are solely transit-amplifying.

This study found that using RADA16-I dressing led to more vigorous hair growth on deep burn wounds compared to other biological materials.

This study found that infused mouse epidermal growth factor induced wool follicle involution through a quasi-physiological process similar to catagen and a separate pathological action, resulting in fleece 'break' or shedding.

This study in Hexi cashmere goats found that secondary follicle activity increases with time, and Hoxc13 expression varies significantly across different growth stages, suggesting a role in follicle activity.

This study successfully developed 3D hair follicle organoids from neonatal mouse epidermal and dermal cells, showing structural and molecular resemblance to native anagen hair follicles.

This study highlights that human hair follicle dermal papilla cells and glypicans play crucial roles in regulating hair follicle stem cell differentiation.

This narrative review examines the technological advancements and clinical applications of liquid injectable platelet-rich fibrin (i-PRF), discussing its use across regenerative periodontology, sports medicine, and more, as well as its potential as a drug delivery system.

This research reports that after genotoxic stress from ionizing radiation or chemotherapy, hair follicles can utilize progenitor cells from transit-amplifying compartments, not quiescent stem cells, for repair, suggesting a potential therapeutic approach to prevent therapy-induced hair loss by activating these progenitors.

In this study, various cellular responses and signaling pathways were examined in hair follicles after exposure to ionizing radiation, including the effects of Wnt3a treatment, with findings noted in apoptosis, DNA damage, and differentiation processes.

Results are not reported in this study, which investigated the effects of radiation on hair follicles and evaluated various cellular responses and signaling pathways, particularly focusing on WNT signaling and the impact of Wnt3a treatment.

In this study, irreversible alopecia on the crown of the scalp in Black women using hot combs was associated with chronic inflammation and follicle damage leading to scarring.

In this study, researchers identified a form of irreversible scalp alopecia in Black women using hot combs, characterized by incomplete hair loss primarily on the crown and follicular scarring.

This study found that the fuzzy mutation in mice is linked to both structural hair defects and accelerated hair follicle cycling, influencing the regulation of hair cycle phases such as catagen and anagen.

This study found that the use of hot combs with petrolatum in Black women causes irreversible alopecia limited to the crown of the scalp, resulting in follicular scarring.

This study found that experimentally induced calcification in rat skin led to rapid and localized mineralization in hair follicles, progressing to more extensive calcification with prior hypercalcemic treatment.