ABSTRACT
Background@#Oxidative stress is generally accepted as one of the principal pathogenesis of vitiligo, and keratinocyte-melanocyte interactions are also thought to play critical roles. It is well-known that antioxidant response and autophagy protect cells against oxidative damage, but the details and the compensatory relationship between the two mechanisms in the keratinocytes of vitiligo lesions remain unclear. @*Objective@#To evaluate the antioxidant response and autophagy status of patients with vitiligo and to explore the interactions between these two mechanisms. @*Methods@#Ten patients with clinicopathologically proven vitiligo and 10 normal controls were enrolled in our Department of Dermatology, Soonchunhyang University Hospital, Bucheon, Korea. Tissue samples of vitiligo lesions in the patient group and normal skin in the control group were immunohistochemically stained for nuclear factor erythroid 2-related factor 2 (Nrf2), Beclin-1, microtubule-associated protein light chain 3 (LC3)-II, and p62. The immunopositivity of epidermal keratinocytes was evaluated. @*Results@#Keratinocytes in vitiligo lesions had a significantly lower expression of Nrf2 (p=0.002) than that in the cells of normal controls. The levels of autophagy markers did not differ significantly between the two groups, but decreases in the Beclin-1 and LC3-II levels, and an increase in the p62 level in the patient group may indicate a small decrease in autophagy of patients with vitiligo. @*Conclusion@#Decreased antioxidant response and reduced autophagy may trigger melanocyte apoptosis in vitiligo lesions.
ABSTRACT
Background@#In pityriasis versicolor, systemic antifungal agents may be indicated for widespread or refractory lesions rather than topical treatment. Oral ketoconazole is an effective treatment for pityriasis versicolor. To our knowledge, this is the first meta-analysis to compare antifungal agents one-to-one. @*Objective@#To compare the effectiveness of oral azole antifungal agents (fluconazole, itraconazole, and ketoconazole) one-to-one in pityriasis versicolor. @*Methods@#A computerized search was performed in different databases, including PubMed, Cochrane, EMBASE, OVID Medline, KoreaMed, KISS, and MedRIC. Seven randomized controlled trials were included. Further, statistical analyses of the extracted outcome data from the studies were performed using Rex Software (ver. 3.0.1). @*Results@#A total of 1,828 records were identified. The results of the meta-analysis including seven studies revealed no significant differences in the mycological cure rates between fluconazole and ketoconazole (risk ratio [RR]: 1.01, 95% confidence interval [CI]: 0.93∼1.09, p=0.8246), fluconazole and itraconazole (RR: 1.14, 95% CI: 0.81∼1.60, p=0.4512), and ketoconazole and itraconazole (RR: 1.07, 95% CI: 0.96∼1.20, p=0.2265). @*Conclusion@#There was no superiority in the therapeutic effect of any drug among the oral azole antifungals used in pityriasis versicolor.
ABSTRACT
Background@#In pityriasis versicolor, systemic antifungal agents may be indicated for widespread or refractory lesions rather than topical treatment. Oral ketoconazole is an effective treatment for pityriasis versicolor. To our knowledge, this is the first meta-analysis to compare antifungal agents one-to-one. @*Objective@#To compare the effectiveness of oral azole antifungal agents (fluconazole, itraconazole, and ketoconazole) one-to-one in pityriasis versicolor. @*Methods@#A computerized search was performed in different databases, including PubMed, Cochrane, EMBASE, OVID Medline, KoreaMed, KISS, and MedRIC. Seven randomized controlled trials were included. Further, statistical analyses of the extracted outcome data from the studies were performed using Rex Software (ver. 3.0.1). @*Results@#A total of 1,828 records were identified. The results of the meta-analysis including seven studies revealed no significant differences in the mycological cure rates between fluconazole and ketoconazole (risk ratio [RR]: 1.01, 95% confidence interval [CI]: 0.93∼1.09, p=0.8246), fluconazole and itraconazole (RR: 1.14, 95% CI: 0.81∼1.60, p=0.4512), and ketoconazole and itraconazole (RR: 1.07, 95% CI: 0.96∼1.20, p=0.2265). @*Conclusion@#There was no superiority in the therapeutic effect of any drug among the oral azole antifungals used in pityriasis versicolor.
ABSTRACT
BACKGROUND@#Atopic dermatitis is a chronic inflammatory disease associated with long-term use of topical and systemic medications. Several articles have described the use of balneotherapy as an adjuvant treatment for atopic dermatitis in many countries, including Korea.@*OBJECTIVE@#The goal of this study was to investigate the therapeutic efficacy and safety of balneotherapy as an adjuvant treatment of atopic dermatitis.@*METHODS@#Ten patients with atopic dermatitis were enrolled in this study and each patient served as their own control. Testing was conducted on the anterior cubital fossa of the arm. A priori binary randomization was completed to determine which arm would receive balneotherapy or tap water. Patients visited clinics 3 times per week for 2 weeks and had a forearm bath for 15 minutes. Assessment was performed at baseline, and after 1 and 2 weeks of treatment.@*RESULTS@#At the last visit, the balneotherapy group showed improvements in their local eczema area, severity index score, and the degree transepidermal water loss. The physician's global assessment, patient's self-global assessment, and skin hydration was increased in both groups.@*CONCLUSION@#Our study suggests that balneotherapy is a safe adjuvant therapy that could be considered for the treatment of atopic dermatitis. However, more studies are required to demonstrate scientific basis for this treatment.
ABSTRACT
BACKGROUND: The purpose of this study was to compare the long term effect of the cholesterol lowering diet education provided by physicians with the education provided by dieticians on serum lipid profiles of hypercholesterolemic patients. METHODS: Among 248 ambulatory patients who had mean baseline serum total cholesterol (TC) level > or = 200mg/dL and received cholesterol lowering diet education from physicians or dieticians, 41 patients who checked serum lipid profiles three times during the mean of 403 days after education were included as subjects. The differences in means of all serum lipid profiles associated with education methods after controlling for follow up duration, differences in means of all serum lipid profiles associated with follow up duration after controlling for education methods, any interaction between education methods and follow up duration on serum lipid profiles were analysed by using repeated measures of analysis of variance. The difference between the baseline lipid levels and the third lipid levels after education were analyzed by using Wilcoxon signed ranks tests in each group. Correlations between baseline serum lipid profiles and the last changes in serum lipid profiles were analyzed. RESULTS: There were no significant differences in means of all serum lipid profiles associated with education methods or follow up duration except LDL cholesterol (LDL C). The first LDL C level after education was significantly lower in the group educated by physicians compared with the baseline LDL C, but there was no such change in the group educated by dieticians. There were no interactions between education methods and follow up duration on all serum lipid profiles. The last change of total cholesterol in both groups and LDL C only in the group educated by dieticians were significant. Correlation coefficients between baseline triglyceride (TG) and change in TG, baseline LDL C and change in LDL C, baseline total cholesterol (TC) and change in TC in patients with TC > or = 240mg/dL were 0.500 (P=0.002), 0.597 (P<0.001), and 0.578 (P=0.001), respectively. CONCLUSION: The changes of serum lipid profile during more than 1 year after education were not significantly different according to diet education methods, but total cholesterol level was significantly decreased in both groups.