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Metabolism and Genetic Disorders / Peroxisome Proliferator-activated Receptors · Journal article
Cutaneous and Ocular Toxicology · September 9, 2026
Early or partial results. Treat as a signal, not a conclusion.
This small case-control study found no statistically significant difference in serum irisin levels or insulin resistance (HOMA-IR) between 40 men with early-onset androgenetic alopecia (mean age 23.1) and 40 healthy controls (mean age 22.5), despite higher BMI and waist circumference in cases. The authors acknowledge this as preliminary work and note that irisin signaling may require a higher metabolic burden to manifest clinically.
Case-control study. 40 male patients with early-onset androgenetic alopecia (mean age 23.1) and 40 healthy male controls (mean age 22.5); setting and eligibility criteria not specified.. Intervention: Early-onset androgenetic alopecia (observational exposure). Compared with: Healthy controls. n = 80.
Early-onset AGA patients had significantly higher BMI and waist circumference compared to controls (p < 0.05) No significant differences in serum irisin levels between AGA and control groups (p > 0.05) No significant differences in HOMA-IR, fasting glucose, insulin, or lipid levels between groups (p > 0.05)
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
These null findings do not establish that irisin or insulin resistance differ in early-onset AGA and should not guide clinical practice. The observation of higher BMI and waist circumference in cases may warrant prospective study of metabolic risk stratification in young men presenting with early hair loss, but confirmation in larger cohorts is needed before any screening recommendation.
Small case-control study with null primary findings (no difference in irisin or insulin resistance), acknowledged by authors as preliminary, requiring confirmation in larger populations.
As stated by the source record.
Quoted from the source exactly as published.
These null findings do not establish that irisin or insulin resistance differ in early-onset AGA and should not guide clinical practice. The observation of higher BMI and waist circumference in cases may warrant prospective study of metabolic risk stratification in young men presenting with early hair loss, but confirmation in larger cohorts is needed before any screening recommendation.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
OBJECTIVE: Early-onset androgenetic alopecia (AGA) is the most common form of male hair loss and is associated with metabolic dysregulation. Irisin is an adipomyokine that has been proposed to regulate insulin sensitivity and metabolic syndrome (MS). In this study, we aimed to evaluate the serum irisin levels and metabolic parameters associated with insulin resistance (IR) in male patients with early-onset AGA. MATERIALS AND METHODS: This case-control study included 40 male patients (mean age: 23.1) with early-onset AGA and 40 healthy men (mean age: 22.5). Anthropometric measurements (body mass index (BMI), waist circumference, blood pressure) and fasting biochemical parameters (glucose, insulin, lipid profile, uric acid, high sensitivity C-reactive protein (hs-CRP), erythrocyte sedimentation rate (ESR)) were assessed. To evaluate IR, the Homeostasis Model Assessment (HOMA-IR) was used. RESULTS: Early-onset AGA patients had significantly higher BMI and waist circumference compared to controls (p < 0.05). No significant differences were observed in blood pressure, presence of IR, glucose, insulin, lipid levels, uric acid, hs-CRP, ESR and serum irisin levels between groups (p > 0.05). Severity of disease was not associated with differences in biochemical parameters or serum irisin levels. CONCLUSION: This preliminary study found no significant differences in serum irisin or IR between early-onset AGA patients and healthy controls suggesting that irisin signaling may be more pronounced in phenotypes with a higher metabolic load. However, higher BMI and waist circumference in AGA patients suggest a predisposition to obesity-related metabolic disorders. Early monitoring of men with early-onset AGA may help prevent long-term cardiometabolic consequences.
Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.