ABSTRACT
Background: Alopecia areata is an autoimmune disorder of anagen hair follicle leading to distressing and relapsing non-scarring hair loss. Vitamin D is an immunomodulator and plays a role in regulating normal hair cycle. Recent evidence suggests inconsistent association between vitamin D deficiency and alopecia areata.Methods: This case control study included 70 newly diagnosed cases of alopecia areata and 70 healthy controls. Competitive chemiluminescence immunoassay was used to determine and compare the serum vitamin D (25‑hydroxyvitamin D) levels between these groups. Also, the serum vitamin D levels correlation with severity of the disease was studied. ANOVA test and student t test were used for the statistical analysis.Results: Serum Vitamin D levels were significantly decreased in alopecia areata patients than in controls (p<0.05). There was no stastically significant relationship between serum 25-OH Vitamin D levels and severity of the disease (p=0.06).Conclusions: Prevalence of serum 25 (OH) deficiency was significantly higher in alopecia areata group. However no significant relation was found with disease severity.
ABSTRACT
Background: Metabolic syndrome is a constellation of several clinical and laboratory cardiovascular risk factors that have been linked with numerous medical and dermatologic conditions. Recent evidence suggests a strong association between skin tags and insulin resistance and obesity, yet there is a paucity of data on relation of skin tags with metabolic syndrome as a whole. Aim of the study was to evaluate the strength of association between skin tags and metabolic syndrome.Methods: 70 patients with skin tags and an equal number of age and gender matched controls were enrolled in a hospital-based case control study. Anthropometric measures, blood pressure, fasting glucose, high density lipoprotein cholesterol and triglycerides were measured. Metabolic syndrome was diagnosed by the presence of 3 or more of the south Asian modified national cholesterol education program’s adult panel III criteria. Statistical analysis was performed using chi square test, and odds ratio was calculated. P≤0.05 were considered significant.Results: Metabolic syndrome was significantly more common in patients with skin tags than in controls (70% vs. 26%, p<0.001). Triglycerides and waist circumference values were significantly increased in cases as compared to controls (p<0.05). There was no statistically significant difference in the high-density lipoprotein levels, fasting blood glucose levels and presence of hypertension among cases and controls.Conclusion: Skin tags when present in multiple could be an early warning sign for Metabolic syndrome. They serve a cutaneous marker to initiate early detection and intervention of at-risk patients for cardiovascular disorders.