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This study systematically reviewed 43 articles on the role of fibroblasts, especially dermal papilla cells, in androgenic alopecia, identifying androgen signaling and related pathways as key drivers of hair follicle miniaturization, which supports targeting dermal papilla cell dysfunction as a therapeutic strategy.

In this study, Terminalia bellirica extracts promoted hair regrowth in testosterone-induced AGA mice, possibly by inhibiting type II 5α-reductase activity and enhancing the MAPK signaling pathway.

This source discusses androgenetic alopecia, noting that male patients may transition from topical minoxidil to its systemic form or from finasteride to dutasteride for potentially better results, while female patients might require extensive lab testing to identify hyperandrogenism due to environmental triggers.

In this review, researchers discussed the anti-inflammatory and immunomodulatory properties of metformin and hypothesized that its topical application could benefit those with alopecia areata, given its effects on immune pathways, hair regrowth, and autoimmune disease management.

This study suggests that structural changes in the TRPV3 channel are linked to severe skin conditions like Olmsted syndrome, with differences observed between heat-activated and resting states.

This study found that apocynin restored collagen production, reduced DNA damage and senescence, and protected skin stem cells from aging in UVB-exposed human keratinocytes.

This study found that carefully engineered hydrogels and asymmetric morphogen gradients facilitated the formation of anatomically relevant skin organoids from iPSC-derived EBs, improving pigmentation and hair follicle generation.

In this study, Wang et al. (2022) found that in patients with cutaneous lupus erythematosus, chronic lesions contained more senescent progenitor cells, marked by p16 and p21, than subacute lesions, suggesting a link between disease chronicity and cellular senescence.

Different types of stem cells and their environments are key to skin repair and maintenance.

This study discusses the potential association between low vitamin D levels and insulin resistance, suggesting that vitamin D deficiency may contribute to disorders like obesity and diabetes, but emphasizes the need for further research to confirm these links.

This study introduces the multiple papillary centres model, offering a new explanation for hair twisting by combining known hair morphology features with differential growth rates caused by dermal papillae.

This review discusses recent advances in understanding the molecular landscape of the dermal papilla, particularly focusing on Blimp1's role in hair follicle development and potential therapeutic targets for hair regeneration, but presents no new clinical results.

This review discusses the various types of stem cells, including their potential applications in therapy, and reports the challenges associated with safe stem cell treatment, with no new clinical results presented.

In this clinical trial, patients with lichen planopilaris treated with the oral TYK2 inhibitor deucravacitinib showed significant improvement in PGA, LPPAI, and Skindex-16 scores over 24 weeks, with transcriptomic analyses indicating decreased inflammatory and immune pathway activity post-treatment.

Results are not reported in this abstract, which outlines research investigating why diabetic mice experience suppressed hair follicle stem cell activation, potentially contributing to chronic diabetic wounds.

This review outlines the functional anatomy, pathology, and molecular mechanisms of androgenetic alopecia, emphasizing the need for multi-omics approaches to better understand this condition's biology.

This review discusses the dynamic behavior of immune cells in skin immune responses using intravital imaging in mice and reports no new clinical results.

This study explored COVID-related chilblains using transcriptomics and found they showed a distinct interferon and JAK/STAT pathway activation, absent in vaccine-related chilblains, with inflammatory cell types varying over time.

This study found that epithelial stem cells from umbilical skin can differentiate into various cell types, suggesting potential roles in epidermis and hair cell formation.

This review discusses genetic and epigenetic studies of PCOS, highlighting Genome-Wide Association Studies that found genetic variants related to gonadotrophin secretion influencing PCOS susceptibility, but it reports no new findings.

This study found that the Florida worm lizard has lost certain genes associated with claw development, which are present in other lizard species with claws, suggesting a link between the evolution of their limbless body and the loss of claw-related genes.

This study concluded that the follicular route is a significant pathway for delivering gentamicin through the skin, as demonstrated by higher drug permeation in non-plugged pig's ear skin compared to plugged skin.

This study found that pro-inflammatory cytokines and apoptotic mechanisms, specifically involving granzyme B and Fas pathways, are associated with chronic alopecia areata, indicating their potential role in the disease's persistence.

The document concludes that both internal stem cell factors and external influences like the environment and hormones affect hair loss and aging, with potential treatments focusing on these areas.

This research found that immobilizing type I atelocollagen onto artificial hair significantly improved the adhesion and long-term fixation of the hairs in the human scalp, indicating high biosafety and enhanced tissue integration.

This study found that intramuscular anti-IFN-γ significantly stabilized and promoted hair regrowth in alopecia areata patients with patchy, progressive hair loss, whereas those with total baldness showed more limited improvement.

This study reported that human induced pluripotent stem cell-derived skin organoids, used to model epidermolysis bullosa, have an epidermal-dermal junction largely lacking type VII collagen, which is important for skin structure.

Platelet-rich plasma (PRP) may help promote hair growth and improve graft survival after hair transplantation, but more research is needed to confirm its effectiveness and determine the best dosage.

This study found that hyperbaric oxygen treatment in rats led to structural changes in epidermis and dermis, including decreased E-cadherin expression and increased connective tissue.

This article examines advancements in understanding and managing androgenic alopecia (male pattern baldness), discussing genetic and psychological factors, diagnostic methods, classifications, and various treatment options, including traditional and emerging therapies, to aid healthcare professionals in making informed treatment decisions.