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Abstract: Background: The association between chronic inflammatory diseases, such as rheumatoid arthritis and psoriasis, and insulin resistance (IR) has been well established. Hidradenitis suppurativa (HS) is a chronic inflammatory cutaneous disease that affects the apocrine gland‐bearing areas of the body. Objective: We aimed to determine the prevalence of IR in patients with HS. Methods: This cross‐sectional, case–control study enrolled 137 subjects, 76 patients with HS and 61 age‐ and gender‐matched controls. Demographic data, clinical examination of HS patients, anthropometric measures, cardiovascular risk factors and laboratory studies were recorded. The homeostasis model assessment of IR (HOMA‐IR) was calculated in all participants by measuring fasting plasma glucose and insulin levels. Results: The median (IQR) HOMA‐IR value in HS patients was significantly higher [2.0 (1.0–3.6)] than in controls [1.5 (0.9–2.3)] (P = 0.01). The prevalence of IR was significantly higher in cases (43.4%) compared with controls (16.4%) (P = 0.001). In the linear regression multivariable analysis after adjusting for age, sex and body mass index (BMI), HS remained as a significant factor for a higher HOMA‐IR [2.51 (0.18) vs 1.92(0.21); P = 0.04]. The HOMA‐IR value and the prevalence of IR did not differ significantly among HS patients grouped by severity of the disease. Conclusion: Our results show an increased frequency of IR in HS. Thus, we suggest HS patients to be evaluated for IR and managed accordingly. [ABSTRACT FROM AUTHOR]

Measurement of radionuclides concentration in foodstuffs allows to assess the intake's assimilated dose. This contributes at least one-eighth of the mean annual effective dose due to natural sources. Among the trace elements in foodstuff, potassium is one of the most important elements. It is a well-known essential element and it occurs all over the earth. Three of the most customary consumed foodstuffs in Mexico since pre-Hispanic time (by all social classes) are the following: bean, chili and corn meal ('tortillas'). They were analyzed by γ-spectrometry in order to determine K activity concentration, the derived annual effective dose, and the K mass fraction (%). Results show that the mean activity concentration of K, annual effective dose and K mass fraction (%) are as follow: 901 ± 90 Bq kg, 37.2 ± 3.7 μSv a and 2.84 ± 0.27 % for chili; 510 ± 10 Bq kg, 27.5 ± 0.5 μSv a and 1.60 ± 0.04 % for bean; and, 90 ± 30 Bq kg, 58.1 ± 19.4 μSv a and 0.27 ± 0.089 % for corn meal, 'masa'. The total effective dose intake from these typical foodstuffs is about 0.122 ± 15.6 mSv ain Mexico's urban zones. [ABSTRACT FROM AUTHOR]