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Abstract

Background: Insulin resistance and high carbohydrate diets are currently considered to be influential in acne aetiology. Insulin is a hormone that does not only regulate the concentration of blood glucose but also affects the production of sebum and through the Insulin Growth Factor-1 (IGF-1) receptor stimulates androgen synthesis which will increase the proliferation of keratinocytes duct and the production of sebum in acne of the pilosebaceous.

Methods: This is a cross sectional observational analytic study involving 38 acne patients and 38 controls. This study aims to determine whether the increase in Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) value is a risk factor for acne. HOMA-IR formula was used to determine insulin activity in basal state. High HOMA-IR values are expressed from cut-off point ≥2. Subject was recruited with consecutive sampling who meets inclusion and exclusion criteria. Fasting insulin and blood glucose levels was derived from venous blood examination.

Results: The average age of acne subjects was 23.71 years old in both groups (10 men and 28 women). The mean value of HOMA-IR in the acne group was higher (2.63 ± 0.29) than those in the control group (1.71 ± 0.26) and was statistically significant difference (p value <0.001). The prevalence ratio was 31.58, meaning that patients with high HOMA-IR were 31.6 times more likely to have acne than patients with normal HOMA- IR values. These results were statistically significant (p <0.001).

Conclusion: Elevated HOMA-IR is one of the factors which increase the risk of acne development in an individual.

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