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This review evaluates dihydrotestosterone's role in androgenic alopecia and proposes a model suggesting that chronic scalp tension and inflammation contribute to hair follicle miniaturization, identifying fibrosis, calcification, and tension as treatment targets.

This article reviews the genetic and potential environmental factors in alopecia areata's pathogenesis and suggests a polygenic model but reports no new clinical findings.

This paper reviews recent advancements in understanding hair follicle structure and the role of JAKs in hair growth, though it does not report new experimental findings.

In this study, researchers focused on the "bulge region" of hair follicles, identifying Janus kinases as key players in hair growth signaling, which could inform new therapies for hair restoration.

This review discusses the potential impact of lifestyle factors on the progression of androgenetic alopecia and reports no new clinical findings; the authors emphasize the need for more comprehensive studies.

This review outlines the proposed theories behind the development of alopecia areata, emphasizing the autoimmune process involving lost immune privilege in hair follicles, and stresses the need to pinpoint specific pathogenic mechanisms for potential treatments.

This study observed that stress, as indicated by hair cortisol concentrations, may trigger onset of hair loss in alopecia areata, although the findings were not statistically significant.

This review discusses the pathogenesis and challenges in treating primary cicatricial alopecia, highlighting the need to understand immune protection collapse in hair follicle stem cells; it reports no new clinical results.

This research suggests that testosterone-induced expression of TGF-beta1 and type I procollagen may lead to perifollicular fibrosis in androgenetic alopecia, with finasteride inhibiting this process as a possible mechanism for its effects.

This review highlights a disconnect between mechanistic insights and physiological relevance in preclinical models of hair loss disorders and suggests a shift toward more human-relevant systems could enhance translational research, despite limitations in existing models like transgenic mice and xenografts.

This article hypothesizes that thymoma with aplastic anemia may result from abnormal autoimmune CD8⁺ T lymphocytes produced by the thymoma, potentially leading to other cytotoxic T-cell-mediated autoimmune diseases.

In this abstract, the issue of "microinflammation" in hair follicles, central to androgenetic alopecia, is described as involving an inflammatory process with Langerhans cells and keratinocytes presenting antigens to T lymphocytes, leading to an immune response with macrophages or natural killer cells destroying these antigens.

This review discusses the role of oxidative stress and reactive oxygen species in the development of androgenic alopecia and reports no new clinical findings.

This study found that mutations in the PADI3 gene, which is important for hair shaft formation, may contribute to central centrifugal cicatricial alopecia among patients.

This review discusses the factors involved in androgenetic alopecia, emphasizing genetic susceptibility as a key contributor and detailing how follicle miniaturization completes the condition's development; it reports no new clinical results.

This review discusses treatments for androgenic alopecia, noting that current options like finasteride and minoxidil are effective for only 10% of patients, thus highlighting the need for new therapies.

This study found that a pathogenetically-based treatment using drugs to correct dyslipidemia and insulin resistance in conjunction with basic therapy led to better outcomes for alopecia areata patients with metabolic syndrome.

This study evaluated salmon-derived exosomes combined with microneedling as a treatment for androgenetic alopecia, reporting significant improvements in hair density, follicular health, and scalp microenvironment, with no serious adverse events observed in the 20 patients after 12 weeks.

This review discusses the role of stem cells in alopecia pathogenesis, highlighting the differences between scarring and nonscarring types, and reports no new clinical results.

This review article examines current drugs for androgenetic alopecia, focusing on their mechanisms and clinical efficacy, noting that while finasteride and minoxidil are commonly approved treatments, new drugs targeting different pathogenic pathways have emerged, offering a broader understanding and reference for AGA treatment options.

This review explored the complex mechanisms behind androgenetic alopecia, highlighting genetic influences and factors like increased 5-α reductase and androgen receptors in hair follicles, while identifying microinflammation and oxidative stress as related issues.

This study suggests that neuropeptides may contribute to the progression of alopecia areata by causing neurogenic inflammation and disrupting the inflammatory environment of hair follicles, but the exact pathogenesis still requires further investigation.

This study found that patients with alopecia areata had higher plasma osteopontin levels compared to healthy controls, but complete recovery after DPCP treatment did not significantly reduce these levels.

This research suggests that innate lymphoid cells type 1 (ILC1) may contribute to the development of alopecia areata, alongside CD8+ T cells, by disrupting hair follicle immune privilege and promoting features of the disease.

This review discusses the role of the complement pathway in alopecia areata and reports no new clinical results; the authors suggest that targeting this pathway could offer treatment options.

This review highlights advances in understanding alopecia areata as a systemic disease involving genetic, immune, and environmental factors, noting new treatments like Janus kinase inhibitors but acknowledging challenges in long-term safety and accessibility.

This study found that alopecia areata patients have elevated oxidative stress markers, such as OSI and MDA, and reduced antioxidant enzyme activities, suggesting a significant role for oxidative stress in the disease and potential value in targeting it therapeutically.

The authors concluded that increasing regulatory T cells in patients with alopecia areata may improve hair follicle regeneration by reducing autoimmune responses, suggesting a potential new therapeutic approach since current treatments are often ineffective with high relapse rates.

This study shows that IKZF1 and the protein IKAROS may play a role in the development of alopecia areata, based on findings from both mouse models and human scalp tissues.

This research explores the potential role of the Stx17 protein in hair pigmentation processes and Alopecia Areata, suggesting possible links to the disease's progression.