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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 review discusses the role of Edar signaling in hair follicle development and cycling, emphasizing its impact on cell fate, differentiation, and interactions with other pathways, but reports no new results.

This study found that HB-EGF and TGF-α work together to stimulate wound healing in a murine model of thermal injury, with peak keratinocyte proliferation observed by postburn day five.

This study found that ectopic expression of Whn in transgenic mice caused impaired differentiation in epidermis and hair follicles, with hair growth defects and severe urinary tract issues leading to hydronephrosis.

The study reports that Fgf18 and Tgf-β2 signaling pathways in hair follicle stem cells have opposing effects on the timing of hair cycle transitions, influencing the shift from telogen to anagen phases.

This study found that in vitro, beard dermal papilla cells stimulated keratinocyte proliferation via androgen-dependent growth factors, while androgenetic alopecia cells released TGF-β1, inhibiting keratinocyte growth.

This review discusses melanocyte development, emphasizing the plasticity of melanoblasts and the role of both intrinsic and extracellular signals in their differentiation and migration, with no new clinical results reported.

This study found that brain-derived neurotrophic factor (BDNF) inhibited hair shaft elongation and induced premature catagen development in cultured human hair follicles, partially through transforming growth factor β2.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

This review discusses the mechanisms of keratin 17 regulation in diseases such as psoriasis and cancers but presents no new experimental findings, calling for further exploration of anti-K17 therapies.

This study identified numerous genes that change expression across the anagen, catagen, and telogen stages of cashmere goat hair follicle development, highlighting key signaling pathways involved.

This study found that caffeine enhanced hair growth and keratinocyte proliferation in human hair follicles, with female follicles showing greater sensitivity than male ones.

This review examines the roles of Smad-4 and Smad-7 in hair follicle differentiation and development through BMP signaling and TGFβ/Activin/BMP pathway inhibition but reports no new experimental 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 observed that androgen treatment increased ROS production and TGF-β1 secretion in rat hair follicle dermal papilla cells, suggesting that the androgen-induced TGF-β1 is mediated by ROS.

Growth factors can either promote or inhibit hair follicle cell growth and collagen breakdown.

This study found that the Stem Cell Educator therapy improved hair regrowth and quality of life in patients with severe alopecia areata by restoring immune balance and protecting hair follicles from autoimmune damage.

In this study, researchers observed that hyperandrogenic PCOS patients exhibited distinct miRNA and TGFβ signaling gene expression patterns in granulosa cells, suggesting these factors may play a role in PCOS pathogenesis.

This study found that mice lacking the Vitamin D receptor showed disrupted hair follicle cycling, which was partially restored with hedgehog signaling pathway activation, suggesting a role for this pathway in follicle regulation independent of vitamin D.

This review highlights the potential of ginseng and its metabolites in preventing hair loss, detailing their hair growth-promoting effects observed in numerous preclinical studies, and emphasizing the underlying mechanisms involved.

This study expands knowledge of non-coding RNAs in goats and other mammals, enhancing understanding of their roles in hair follicle growth and regression.

This study found that C. obtusa oils promoted hair growth in shaved mice and increased the expression of a hair growth regulator, VEGF, in a cell line.

In this study, decellularized human amniotic membrane was found to promote wound healing and reduce scar formation in rats with full-thickness skin defects, compared to traditional clinical treatments.

This article reviews mechanisms by which herbal ingredients may stimulate or inhibit hair growth, and it reports no new clinical findings while suggesting potential for developing hair loss treatments.

This study found that insulin-like growth factor-I and hepatocyte growth factor increased the chemotactic migration of human hair outer root sheath cells, suggesting these factors have both growth stimulatory and chemotactic effects.

This study found that phosphatidic acid promotes hair growth by stimulating cell proliferation and protecting against apoptosis in murine hair epithelial cells, unlike lysophosphatidic acid, which showed limited effects.

This review discusses the role of activin signaling in hair follicle formation, hair growth cycling, and skin healing, but presents no new clinical findings.

This review discusses the role of tumor suppressors in controlling tumor-associated inflammation and suggests that targeting this inflammation may counteract the effects of tumor suppressor loss.

This study identified a critical NF-κB-LHX2-TGFβ2 signaling pathway essential for primary hair follicle development in mice, revealing new insights into the underlying mechanisms of morphogenesis.

This study found that disrupting Smad4 signaling in young mice led to overactivation of follicle stem cells, causing hyperplasia and depletion of the stem cell niche.