Aim:To investigate the relationship between serum leptin, atherogenic lipid and glucose levels in patients with skin tags and healthy controls.Materials and Methods:A total of 58 patients, with at least three skin tags, aged 24 to 85 years, and 31 healthy controls aged 30 to 70 years, were examined in the present study. The subjects in all the groups were selected with statistically similar Body Mass Index (BMI). Fasting concentrations of plasma glucose, serum lipids including triglyceride, total cholesterol, and high-density lipoprotein cholesterol (HDL) and low-density lipoprotein cholesterol (LDL), HbA1c, and leptin were measured by enzyme-linked immunosorbent assay (ELISA). In addition, serum LDL level was calculated using Friedewald's formula.Results:There was no significant difference in age, sex, BMI, HbA1c, triglyceride, HDL and leptin levels between the groups. Skin tags group showed significantly higher levels of total cholesterol and LDL, when compared with the healthy controls groups (P < 0.01). In addition, regression analysis showed that leptin level was positively correlated to serum triglyceride level (r = 0.265, P = 0.044).Conclusion:Total cholesterol and LDL serum levels should be controlled in patients with skin tags. On the other hand, glucose, leptin and HbA1c serum levels may not be as important as is being considered in recent times.

Although the lesions that were found the most in our study were benign lesions, unrelated to systemic diseases, we still believe that oral mucosal lesions can be a sign of a systemic or dermatological disease in infants, which affects the oral feeding of the infants. Routine examination of the oral mucosa should be a part of the pediatric examination.

Retinoids are widely used to treat acne in patients with underlying systemic diseases. We evaluated the effect of 13-cis-retinoic acid (isotretinoin) on nasal mucociliary clearance and pulmonary function tests (PFTs) in patients with severe acne vulgaris. Each side effect was scored using a 4-point scale. Mucociliary clearance was evaluated by the saccharin test (ST). ST and PFTs were performed on all patients before and during the third month of treatment. A total of 40 acne patients (88% female, mean age 25 +/- 7 years) were included. The most common side effects were dryness, chapped lips, and xerosis. Mild epistaxis occurred in 13 patients; only two patients reported bleeding more than 10cc. There was no difference before and during the third month of treatment in forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC ratio, forced expiratory flow rate between 25% and 75% of FVC (FEF(25-75)), and their predicted percentage ratios. Mean nasal mucociliary clearance time was 12.6 +/- 4.1 min before and 15.9 +/- 5.7 after treatment (P < 0.001). We found that nasal clearance was significantly prolonged with treatment, and there was significant correlation between drug dose and mucociliary clearance time. Isotretinoin caused signs and symptoms of dry nose and disturbed mucociliary clearance without affecting PFTs. Nasal complications generally are not serious, especially when isotretinoin is taken in low doses.

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Because nail alterations could be a manifestation of systemic or dermatologic diseases in infants, fingernail and toenail examination should be a part of the paediatric dermatology examination.

We cannot recommend the use of topical 1% sildenafil for the treatment of alopecia areata without further evidence of its therapeutic benefit.