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In this cross-sectional study of Indonesian men, researchers observed a significant negative correlation between serum vitamin D levels and the severity of androgenetic alopecia, suggesting that lower vitamin D concentrations are associated with more severe hair loss, although causality was not established.

This study observed that in androgenetic alopecia patients, the expression of CD34+ progenitor cells significantly decreased in frontal scalp biopsies, while Sox9 expression remained consistent, suggesting that altered conversion of hair follicle stem cells to progenitors may significantly contribute to AGA development.

This study found that androgenetic alopecia is associated with insulin resistance, elevated adipokines levels, and dyslipidemia in males, while female patients generally maintained a normal hormonal profile.

This study found that patients with androgenetic alopecia had significantly higher serum NF-κB levels compared to controls, and these levels correlated with disease severity, suggesting NF-κB as a potential biomarker and therapeutic target.

Certain gut bacteria may protect against hair loss, while others may increase the risk.

This study discovered that exosomes from adipose-derived mesenchymal stem cells can mitigate damage in dermal papilla cells by modulating the TGF-β1/SMAD2 signaling pathway through miRNAs miR-574-3p and miR-125a-5p, revealing potential therapeutic targets for androgenetic alopecia.

The study investigated immune cell patterns around the hair follicle infundibulum in androgenetic alopecia, revealing significant differences in immune signatures between patients with AGA and control donors, specifically noting an enrichment of CD4 cells in the patient group.

In this study, researchers successfully established immortalized human frontal and occipital scalp dermal papilla cell lines from androgenetic alopecia patients, observing distinct gene expression, androgen receptor levels, and hair follicle growth effects between these regions, which may help advance hair loss research and therapeutic development.

This study identifies gene-regulatory networks related to genetic variants in skin and hair diseases, suggesting that dermal papilla cells are crucial in androgenetic alopecia.

This letter discusses a study where obesity was linked to hirsutism but not androgenetic alopecia in children and adolescents, contrasting with previous findings in adult men.

This study observed that fibrosis occurs in the bulge region of hair follicles affected by androgenetic alopecia and is correlated with the hair miniaturization process.

This study suggests that follicular stem cells in the bulge region are not directly targeted in androgenetic alopecia, based on the consistent presence of cytokeratin 15 across scalp samples from affected patients.

This article reviews diagnosis and treatment guidelines for androgenetic alopecia, highlighting that medical treatments like finasteride and minoxidil can arrest progression and improve hair conditions in most mild to moderate cases.

This study found that in androgenetic alopecia, reduced stem cell factor production by dermal papilla cells may lead to decreased pigmentation in hair follicles.

This article reviews the molecular mechanisms involved in androgenetic alopecia, focusing on the role of type 2 5α-reductase and DHT, but presents no new findings.

Men with baldness have higher levels of specific proteins, suggesting local hormone production may play a role in hair loss.

In this study, researchers observed that in advanced androgenetic alopecia, increased DNA damage in the frontal bald area may lead to cell apoptosis due to impaired repair capacity.

This study found elevated tissue levels of DKK-1 in patients with both androgenetic alopecia and alopecia areata compared to controls, suggesting DKK-1 as a potential therapeutic target for these conditions.

This study reported higher levels of certain proteins, such as DAX-1, SRY, and WT-1, in the bald scalp of patients with androgenetic alopecia.

This review discusses the role of androgen hormones in the pathophysiology of childhood androgenetic alopecia and reports no clinical results.

This study suggests that low proliferation rates in bald areas of androgenetic alopecia patients, along with persistent inflammatory infiltrate, may lead to follicular miniaturization and fibrosis.

This article reviews the classification history of androgenic alopecia and highlights the need for further research to find effective hair growth medications.

This study found that the prevalence of the exogen phase was negligible in women with androgenetic alopecia and telogen effluvium, with exogen accounting for a small percentage of hair in both conditions.

AGA is a common hair loss disorder, and early diagnosis and treatment with minoxidil or finasteride can help reduce emotional distress.

This review highlights the potential of exosome-based therapies for androgenetic alopecia by modulating key signaling pathways in hair follicles, suggesting a promising treatment option that requires further research to validate long-term safety and efficacy.

This study found that serum irisin levels were significantly lower in patients with androgenetic alopecia compared to healthy controls, but no significant relationship was detected between serum irisin levels and insulin resistance markers like BMI, fasting insulin, or HOMA-IR.

This study highlights the distinct distribution patterns of extracellular matrix components in the scalp skin of male and female androgenetic alopecia patients, with increased elastin staining intensity observed in male cases.

This study found that higher homocysteine levels were associated with androgenetic alopecia and inhibited hair growth in mice, suggesting a potential link that warrants further investigation.

This article reviews the current understanding, clinical features, diagnostic tests, and treatment options for androgenetic alopecia and reports no new clinical results.

Genetically repaired stem cells may treat certain genetic diseases, Th17 cells are key in fighting systemic fungal infections, hair loss in AGA is due to progenitor cell loss, and α-synuclein transfer might contribute to Parkinson's disease progression.