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This study found that PGD2 inhibits hair follicle regeneration in mice through the Gpr44 receptor, suggesting that blocking PGD2 or Gpr44 may enhance skin regeneration after wounds.

This article reviews the role of polyamines in hair follicle growth and discusses potential therapeutic applications but provides no new clinical results.

This study identified overexpression of certain immune-related genes and underexpression of genes in specific signaling pathways in premature androgenetic alopecia, suggesting potential new therapeutic targets.

This study found that the small molecule honokiol may protect against inflammation, collagen breakdown, and cell damage caused by cigarette smoke in skin cells cultured in vitro.

In this study, topical quercetin was found to stimulate hair follicle growth and promote microvascular regrowth in mice, suggesting its potential for hair regrowth strategies.

This study found that berry extracts, especially black raspberry extract, may have anti-aging effects due to their high antioxidant activities.

This study found that cyclosporine A's enhancement of hair growth in mice is partly due to its ability to block the nuclear translocation of apoptosis-inducing factor, slowing the hair follicle transition to the catagen phase.

This study found that diphlorethohydroxycarmalol significantly increased prostaglandin $E_2$ synthesis in HaCaT human keratinocytes by upregulating COX-1 and COX-2 expression, suggesting potential benefits from elevated $PGE_2$ production.

In this study, PGD2 was shown to increase testosterone production in human keratinocytes through reactive oxygen species, suggesting potential benefits of antioxidants like N-acetyl-cysteine for AGA patients.

Stress may affect hair growth by influencing hair follicle development and could contribute to hair loss.

This study found that flower extracts of Wedelia trilobata may serve as a promising active ingredient for cosmeceutical products due to their antioxidant, anti-inflammatory, and antimicrobial properties.

This study suggests that while complementary and alternative treatments for hair loss are becoming more popular, their effectiveness and mechanisms remain largely unverified.

This study describes vitiligo as an autoimmune disease marked by depigmented skin and mucosal patches, and reviews its complex pathogenesis and diagnostic features. Treatment aims for disease control and repigmentation through various topical and systemic therapies, phototherapy, and surgical options, emphasizing personalized, multimodal approaches.

This survey reports on the types and extraction factors of flavonoids in three aquatic plants from Iraqi marshlands but notes limited information on individual flavonoid profiles and their biological impacts.

This study found that activating Nrf2 in human hair follicles significantly reduced oxidative stress, lipid peroxidation, and protected against hair growth inhibition, suggesting a protective role for Nrf2 against redox insult in this context.

This review explores various hormone influences on hair growth and loss beyond androgens, noting that clinical hormone therapies for aging may impact hair due to associated hormone level reductions, but reports no new empirical results.

This study explored the immune environment of the hair follicle's bulge region and suggested that its unique signaling may prevent melanoma formation by lacking necessary proinflammatory signals for full oncogenic transformation, indicating potential strategies for melanoma prevention by replicating this immune-privileged environment.

This review discusses the conserved molecular mechanisms controlling hair follicle development and cycling and suggests they may also apply to other ectodermal derivatives, like teeth and feathers, but it reports no new results.

This study found that p21 is much more highly expressed in normal melanocytes compared to melanoma cells, suggesting a potential target for preventing melanoma progression through cell cycle repair processes.

This study demonstrated that novel curcumin analogs CMC2.24, CMC2.23, and CMC2.5 were more effective and less toxic than parent curcumin in inhibiting melanin production in normally pigmented human melanocytes, suggesting potential for skin depigmentation therapies.

TRPV4 slows hair growth by affecting hair follicle cells.

This study found that spanlastic gel loaded with thymoquinone and ascorbic acid improved skin deposition and tyrosinase inhibition, suggesting potential as a treatment for hyperpigmentation.

This editorial reviews how photobiomodulation therapy might effectively treat both hyperpigmentation and depigmentation skin disorders, but reports no new clinical results.

This literature review reports that mutations in the SASH1 gene are linked to different pigmentation disorders, including dyschromatosis universalis hereditaria and lentiginosis. It further suggests SASH1's significant role in melanocyte processes and its potential as a target for developing treatments for these conditions.

In this study, Dguok deficiency in mice led to premature hair greying due to a loss of melanocyte stem cells and mature melanocytes, with increased oxidative stress and cell death; treatment with an antioxidant mitigated these effects, suggesting DGUOK's importance in hair pigmentation maintenance.

This study found that doxorubicin disrupts hair-follicle-associated blood vessels, which may contribute to hair follicle dystrophy and alopecia in mice, but hair-follicle stem cells remained unaffected.

This review examined the psychological effects, mechanisms, health associations, and treatments related to premature hair graying, highlighting factors like genetics, oxidative stress, smoking, and diet, with the aim of enhancing understanding and addressing its broader implications.

This review discusses key molecular targets in cosmetic research and reports no clinical results; it highlights the role of telomerase, sirtuins, and tyrosinase in anti-aging and depigmentation strategies.

This review discusses the potential of extracellular vesicles for facial aesthetic applications, including scar reduction and skin rejuvenation, but reports no new clinical results; further research into production and mechanisms is needed.

This study suggests that melanoma tumor cells exhibit intrinsic plasticity, challenging the applicability of the cancer stem cell model to this malignancy.