Nahidi Yalda; Layegh Pouran; Naser Tayyebi Meibodi; Vida Vakili; Golsan Kardan
Abstract
Background: Vitiligo is a pigmentation disorder of the skin characterized by the loss of melanocytes through different mechanisms. Narrow band UVB (NBUVB) is a safe and effective treatment for vitiligo that acts by inducing the synthesis of cytokines involved in melanogenesis. NBUVB appears to be involved ...
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Background: Vitiligo is a pigmentation disorder of the skin characterized by the loss of melanocytes through different mechanisms. Narrow band UVB (NBUVB) is a safe and effective treatment for vitiligo that acts by inducing the synthesis of cytokines involved in melanogenesis. NBUVB appears to be involved in the treatment of vitiligo by increasing the synthesis of vitamin D, which prevents the apoptosis of melanocytes; accordingly, we set out to compare the serum level of vitamin D and its variations following NBUVB treatment according to the degree of response to treatment.
Methods: Thirty-eight patients with vitiligo were subject to phototherapy with NBUVB. Photographs of vitiligo lesions were taken prior to and after completing 60 phototherapy sessions. Further measured were the serum level of 25-hydroxyvitamin D3, VASI score and repigmentation rate before and after the treatment period. Finally, the relationship between the changes in serum vit D3 levels and variations of VASI score was investigated.
Results: Mean serum level of vitamin D3 was 20.78 ng/ml after treatment, which is significantly more compared to the period before the treatment (15.42, P=0.001). Mean VASI score was 5.45 before the treatment, yet was reduced to 2.24 after treatment, which is a significant change (P<0.001); however, the changes in vitamin D3 levels were not significantly correlated with VASI score (P=0.137).
Conclusion: The repigmentation rate in vitiligo lesions are not significantly correlated with serum vitamin D3 levels. Therefore, NBUVB is not likely to improve vitiligo lesions through the increase in serum vitamin D levels.
Yalda Nahidi; Naser Tayyebi Meibodi; Pooran Layegh; Sara Sharifi
Abstract
Background: Lichen planus (LP) is a chronic inflammatory disease involving the skin, mucous membranes and appendages. Like other chronic inflammatory diseases, it may be associated with metabolic disorders and dyslipidemia. Due to the discrepancies in the results of previous studies and lack of a similar ...
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Background: Lichen planus (LP) is a chronic inflammatory disease involving the skin, mucous membranes and appendages. Like other chronic inflammatory diseases, it may be associated with metabolic disorders and dyslipidemia. Due to the discrepancies in the results of previous studies and lack of a similar study on an Iranian population, we decided to investigate and compare the serum lipid levels of LP patients and normal healthy subjects.Methods: In this case-control study, 71 patients with lichen planus confirmed by clinical and pathological examination who referred to dermatology clinic were recruited; further included were 71 subjects selected from attendants without any skin diseases matched for age, gender and BMI.with patients; the well-being of the healthy subjects was confirmed by laboratory tests, physical examination and medical history..After filling the questionnaire, triglyceride, cholesterol, HDL and LDL levels were measured for patients and healthy subjects..The collected data were then analyzed.Results: Mean age of patients in the case group was 40.63 ± 11.41 years, 50.6% of whom were men, while 49.4% were women. Cholesterol, triglyceride and LDL levels in patients were significantly higher than the control group; it was only regarding HDL levels that no significant difference was observed between the two groups. HDL and triglyceride levels were significantly higher in patients with generalized disease. There was a recognizable correlation between elevated levels of LDL and cholesterol and disease duration.Conclusions: In this study, a disrupted lipid profile was observed in LP patients, which can be associated with disease severity. This study proposes measuring lipid serum levels prior to commencing the treatment in all known cases of lichen planus so as to preclude cardiovascular diseases if there is a problem with the lipid profile.
Sara Sabouri Rad; Masoumeh Hosseini-Nejad; Naser Tayyebi Meibodi; Pouran Layegh
Volume 19, Issue 1 , 2016, , Pages 29-31
Yalda Nahidi; Naser Tayyebi Meibodi; Habibollah Esmaili
Volume 17, Issue 3 , 2014, , Pages 81-84
Abstract
Background: Vitiligo is a common cutaneous depigmentation disorder caused by the destruction of melanocytes. The exact etiopathogenesis of this disorder is not well known, but a complex of genetic, immunologic, inflammatory, and cytotoxic factors have been implicated. According to ...
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Background: Vitiligo is a common cutaneous depigmentation disorder caused by the destruction of melanocytes. The exact etiopathogenesis of this disorder is not well known, but a complex of genetic, immunologic, inflammatory, and cytotoxic factors have been implicated. According to reports on the role of vitamin B12 and folic acid deficiency as important co-factors in the metabolism of homocysteine, we expected an increase in homocysteine levels in patients with vitiligo; therefore, our aim was to investigate the serum levels of homocysteine in Iranianpatients with vitiligo.Method: Forty patients with vitiligo and 40 healthy controls matched for age and sex were studied. After exclusion of cases with diseases that could affect the homocysteine level, serum homocysteine levels were measured by ELISA.Result: Males comprised 57.5% of the participants in both groups and 42.5% were female. The mean age of the patients was 24.68 ± 12.44 years. The level of homocysteine in the case andcontrol groups was 18.56 ± 5.69 and 10.19 ± 4.40, respectively, which was significantly higher in patients with vitiligo (P ? 0.001). There was no correlation between homocysteine levels and age,sex, history of previous treatment, duration of disease, and the extent of body surface involvement. Serum homocysteine levels in patients with regressive vitiligo (13.8) were lower thanprogressive (18.4) and stable (20.4) cases (P = 0.05).Conclusion: We found that the increase in serum homocysteine level in patients genetically susceptible to vitiligo could be a predisposing factor for the development of vitiligo. The serumhomocysteine level is associated with disease activity, and may be used as a prognostic factor for disease activity.