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In this study, different types of catagen in the C57BL/6 mouse model exhibited varying effects on hair follicle melanocytes and melanin distribution, with spontaneous and dexamethasone-induced catagen showing pigment incontinence, while cyclophosphamide-induced catagen retained dendritic melanocytes but increased ectopic melanin.

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 study demonstrated that combining AMD3100 with low-dose tacrolimus in a stem cell mobilization approach significantly reduced wound healing time and improved scar and hair follicle regeneration in full-thickness skin wounds.

This review highlights how diabetes affects stem and progenitor cells through altered signaling and homeostasis, impacting tissue function and complicating diabetic therapy efforts; new clinical results are not presented.

This study reviews how oxidative stress affects hair follicle development and hair growth, discusses antioxidant-based treatments for hair loss, and evaluates natural antioxidant products that promote hair growth, emphasizing the need for further research due to existing limitations.

This review discusses the links between metabolic syndrome and various skin diseases, exploring shared mechanisms such as insulin resistance and inflammation, but reports no new clinical results.

Overexpression of certain genes can shorten hair by disrupting the hair-growth cycle.

This study observed that testosterone inhibits hair follicle epithelial cell proliferation in adult stumptailed macaques only when dermal papilla cells from bald scalps are present, with antiandrogen RU 58841 reversing this effect.

This study developed a nanoscale biomimetic matrix that effectively and stably expands human hair follicle stem cells, offering a new tool for hair follicle reconstruction research.

This study suggests that D-panthenol may promote hair growth by enhancing cell viability, suppressing apoptosis markers, and elongating the anagen phase in human hair follicle cells.

In this study, patients with androgenetic alopecia showed significantly decreased antioxidant activity and increased oxidative stress markers, suggesting a role for oxidative stress in the condition.

This study found that activating ALDH2, an enzyme that detoxifies acetaldehyde, promoted hair growth in hair follicles by reducing oxidative stress and enhancing cellular signaling pathways, suggesting a potential therapeutic approach for inducing hair regrowth.

This review discusses the role of the Wnt/β-catenin pathway in skin wound repair and explores how photobiomodulation may affect chronic wound healing, but it reports no new clinical results.

This study found that Sox2 within dermal papilla cells in the hair follicle regulates hair pigmentation, influencing the type and production of melanin.

This source reviews the potential of polyphenols as therapeutic and preventive treatments for common skin disorders such as acne, fungal infections, dermatitis, alopecia, and skin cancer, emphasizing their anti-inflammatory and antimicrobial effects and ability to penetrate the skin barrier.

This review highlights the increased cardiovascular risk associated with certain dermatologic diseases like psoriasis and hidradenitis suppurativa but reports no new clinical findings.

This review examines the anti-alopecia effects of plant-derived phytochemicals and their mechanisms for promoting hair growth, but it reports no new clinical findings.

This article reviews in-vitro and cell-free methods for assessing the efficacy of herbal ingredients in cosmetic formulations for skin health and hair growth, but it reports no new clinical results.

This study investigated the relationship between early-onset androgenetic alopecia and metabolic syndrome in younger males, but the abstract does not report specific results.

This meta-analysis found that patients with androgenetic alopecia had a significantly higher prevalence of metabolic syndrome and poorer metabolic profiles compared to controls, especially among females, those with early onset, and individuals of African ethnicity.

This study suggests that phytochemicals from natural sources could be safer alternatives to conventional treatments for hair loss, as they may activate key pathways involved in hair growth.

This review discusses recent advances in using extracellular vesicles as a potential treatment for alopecia and highlights ongoing challenges in their clinical application and mass production; no new clinical results are reported.

This study highlights the role of immune dysregulation, microRNA modulation, and SIRT1 pathways in alopecia areata, suggesting antisense oligonucleotides targeting miR-485-3p as a promising therapeutic strategy for promoting hair regrowth and reducing inflammation in murine models.

This review summarizes recent advancements in using exosomes for promoting hair growth, finding that exosomes from various cells, like dermal papilla and mesenchymal stem cells, show promise as a potential new treatment route for alopecia.

This review examines natural bioactive compounds for their potential to alleviate androgenetic alopecia, emphasizing compounds like ginseng and curcumin, but reports no new experimental results.

This study developed immortalized cell-based models to screen and evaluate potential hair-care materials by forming hair follicle-like structures that respond to hair growth-promoting compounds.

In this study, androgenetic alopecia was linked to a higher likelihood of hyperlipidemia in both men and women and obesity in women, highlighting it as a potential marker for cardiometabolic risk.

This meta-analysis found that several factors are significantly associated with the presence and progression of androgenetic alopecia, including family history, smoking, alcohol consumption, poor sleep quality, being overweight, hypertension in men, insulin resistance, and high fasting insulin levels.

This study identified increased expression of ACAA1 and its regulation by hsa-miR-1343-3p, linking androgenetic alopecia to lipid metabolism pathways, particularly through PPAR signaling, in scalp tissues.

This review examined 40 studies on exosome-based therapies for alopecia areata, reporting significant hair regrowth and improvements in hair count, length, and thickness, but highlighted the need for standardized methodologies and robust RCTs before clinical application.