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Androgenetic alopecia and insulin resistance in young men.
Clin Endocrinol (Oxf). 2008 Dec 15.
González-González JG, Mancillas-Adame LG, Fernández-Reyes M, Gómez-Flores M, Lavalle-González FJ, Ocampo-Candiani J, Villarreal-Pérez JZ.
"Dr. Jose Eleuterio Gonzalez" University Hospital, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Servicio de Endocrinologia.
Background: Epidemiological studies have associated androgenetic alopecia (Androgenetic Alopecia) to severe young-age coronary artery disease and hypertension, and linked it to insulin resistance. We carried out a case-control study in age and weight-matched young males to study the link between Androgenetic Alopecia and insulin resistance using the HOMA-IR index or metabolic syndrome clinical manifestations. Methods: Eighty young males, 18 to 35 years old, with androgenetic alopecia equal or greater than stage III Hamilton-Norwood, and 80 weight and age-matched controls were included. Alopecia, glucose, serum insulin, HOMA-IR index, lipid profile and androgen levels, as well as metabolic syndrome criteria were evaluated. Results: The HOMA-IR index was significantly higher in cases than controls. Non-obese cases had a higher mean diastolic blood pressure and a more frequent family history of Androgenetic Alopecia than non-obese controls. A borderline difference in the HOMA-IR index was found in obese Androgenetic Alopecia cases vs. obese controls (p=0.055, CI 95%= 2.36 to 4.20 vs.1.75 to 2.73, respectively). Free testosterone values were significantly higher in controls than cases, regardless of BMI. A statistically significant additive effect for obesity plus alopecia was found with significant trends for insulin, the HOMA-IR index, lipids and free testosterone when BMI and alopecia status were used to classify the participants. Conclusions: Our results support the recommendation for assessing insulin resistance and cardiovascular-related features and disorders in all young males with grade 3 or higher Androgenetic Alopecia, according to the Hamilton-Norwood classification.
Clin Endocrinol (Oxf). 2008 Dec 15.
González-González JG, Mancillas-Adame LG, Fernández-Reyes M, Gómez-Flores M, Lavalle-González FJ, Ocampo-Candiani J, Villarreal-Pérez JZ.
"Dr. Jose Eleuterio Gonzalez" University Hospital, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Servicio de Endocrinologia.
Background: Epidemiological studies have associated androgenetic alopecia (Androgenetic Alopecia) to severe young-age coronary artery disease and hypertension, and linked it to insulin resistance. We carried out a case-control study in age and weight-matched young males to study the link between Androgenetic Alopecia and insulin resistance using the HOMA-IR index or metabolic syndrome clinical manifestations. Methods: Eighty young males, 18 to 35 years old, with androgenetic alopecia equal or greater than stage III Hamilton-Norwood, and 80 weight and age-matched controls were included. Alopecia, glucose, serum insulin, HOMA-IR index, lipid profile and androgen levels, as well as metabolic syndrome criteria were evaluated. Results: The HOMA-IR index was significantly higher in cases than controls. Non-obese cases had a higher mean diastolic blood pressure and a more frequent family history of Androgenetic Alopecia than non-obese controls. A borderline difference in the HOMA-IR index was found in obese Androgenetic Alopecia cases vs. obese controls (p=0.055, CI 95%= 2.36 to 4.20 vs.1.75 to 2.73, respectively). Free testosterone values were significantly higher in controls than cases, regardless of BMI. A statistically significant additive effect for obesity plus alopecia was found with significant trends for insulin, the HOMA-IR index, lipids and free testosterone when BMI and alopecia status were used to classify the participants. Conclusions: Our results support the recommendation for assessing insulin resistance and cardiovascular-related features and disorders in all young males with grade 3 or higher Androgenetic Alopecia, according to the Hamilton-Norwood classification.