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In this review, the authors evaluated the potential of using the second to fourth digit ratio (2D:4D) as a predictor for androgenetic alopecia, suggesting future research directions but not reporting definitive results.

This chapter reviews a case of colour dilution alopecia in a Dobermann, offering insights into the clinical progression, differential diagnoses, and treatment options but reports no new findings.

This study identified five master regulators that mediate molecular differences in hair follicle development and sexual dimorphism in the skin, providing insights into male pattern baldness and hair follicle donor dominance.

This source describes alopecia areata as a long-term, immune-mediated disorder causing non-scarring hair loss, often starting in childhood or early adulthood due to genetic predisposition and an immunological attack on hair follicles.

This study identified 374 eQTLs in scalp hair follicles associated with genes involved in metabolic, mitotic, immune processes, and responses to steroid hormones, contributing insights into genetic variation and hair traits.

This review discusses recent advances in understanding gender differences in skin and their implications for dermatologic diseases, but it reports no new experimental results; ongoing research is necessary for translating these insights into clinical practice.

This review discusses the impact of COVID-19 on the endocrine system and reports no clinical results; the authors emphasize the need to investigate endocrine damage during and after COVID-19 infection.

This study observed a higher incidence of telogen effluvium from July to October, suggesting a summer-related effect in populations above the Tropic of Cancer, possibly influenced by ultraviolet light.

This study found that patients with acne vulgaris had significantly higher serum levels of betatrophin compared to healthy controls, suggesting it may be an independent predictor of acne severity and vulnerability.

This review discusses the genetic factors and single nucleotide polymorphisms related to androgenic alopecia, emphasizing androgen receptors, but reports no new clinical results.

Some Greek melanoma patients have gene mutations linked to increased cancer risk, a new color feature helps diagnose melanoma, the incidence of a skin condition in the Netherlands is rare, and a gene possibly affects male-pattern baldness.

This study explains that alopecia areata, a long-term immune-mediated disorder causing patchy baldness, results from an immunological attack on hair follicles, often in genetically predisposed individuals, with a complex mix of immunological, environmental, and genetic factors involved in its development.

R-spondin2 may help treat hair loss, gene differences could explain baldness, a peptide's regulation is linked to psoriasis, B-defensin gene copies may affect a skin condition's risk and severity, and potential markers and targets for alopecia areata were identified.

This study describes alopecia areata as a long-term, immune-mediated disorder characterized by non-scarring hair loss, often occurring in genetically predisposed individuals and possibly triggered by T-cell-mediated inflammation, environmental stressors, and genetic factors.

This study suggests that the androgen receptor locus on the X chromosome may play a role in the pathogenesis of early-onset female pattern hair loss.

This study investigated the effectiveness of traditional Ayurvedic treatment, specifically Aaditya Pak Guduchi Tail with Shiroabhyanga massage, in reducing hair fall and dryness from Khalitya, finding it significantly improved hair and scalp health.

In this study, researchers used genetic data from over 52,000 men to identify over 250 genetic loci associated with severe hair loss and developed a predictive algorithm for determining hair loss risk.

This study identified 63 genetic loci associated with male-pattern baldness, uncovering genes and pathways that may help develop treatments and suggesting its connection to other human conditions.

This study found that male pattern baldness in European males is strongly heritable and associated with genetic markers linked to earlier puberty, bone density, and pancreatic function.

This study found that a genetic model using SNPs can predict early-onset male-pattern baldness with moderate accuracy, which may assist in decisions about interventions.

This study found that a genetic test using 5 to 20 SNPs can predict male pattern baldness with variable accuracy in European men, especially those aged 50 and older.

This study observed that frontal plus moderate vertex baldness at age 45 was associated with a higher risk of aggressive prostate cancer in a large cohort.

This study found that early-onset baldness in African-American men is associated with an increased risk of developing prostate cancer and more aggressive tumors, with potential interactions involving age and smoking.

This study suggests that any baldness, particularly moderate balding, is associated with a higher risk of fatal prostate cancer in men, supporting a possible link between hair loss and prostate cancer mechanisms.

This study found that male pattern baldness may serve as a clinical marker for circulating sex hormone levels in men with localized prostate cancer, while chest hair density showed no significant hormone association.

In this study, researchers found an inverse association between baldness and testicular cancer, suggesting androgen activity may influence cancer risk.

This study found no significant genetic correlations between male pattern baldness and COVID-19 outcomes, suggesting that shared genetic factors may not explain the reported association.

Some men can have female pattern baldness without hormonal abnormalities or signs of feminization.

This study reported that pathways related to apoptosis, cell proliferation, and WNT signaling might be key drivers of hair loss in androgenetic alopecia, guiding potential targets for therapy development.

This study suggests that the AGA risk haplotype in Europeans was driven to high frequency by positive selection, likely associated with a variant in the EDA2R gene.