نتایج جستجو برای: narrowband uvb
تعداد نتایج: 7854 فیلتر نتایج به سال:
Background and Aim: Psoriasis is a chronic inflammatory dermatosis that affects 0.6% to 4.8% of the general population. Our aim was to compare the effect of narrow band UVB (NB-UVB) on normal flora of cutaneous plaques and normal skin in psoriatic patients. Methods: Twenty psoriatic patients without any contraindication of phototherapy were enrolled in this study. Samples from psoriatic...
Reactive oxygen species have been shown to play a role in ultraviolet light (UV)-induced skin carcinogenesis. Vitamin E and green tea polyphenols reduce experimental skin cancers in mice mainly because of their antioxidant properties. Since olive oil has also been reported to be a potent antioxidant, we examined its effect on UVB-induced skin carcinogenesis in hairless mice. Extra-virgin olive ...
Background: Psoriasis is a chronic inflammatory skin disease that is estimated to affect 0.6% to 4.8% of the general population. The optimum number of NB-UVB phototherapy sessions is yet to be determined. The aim of this study was to compare therapeutic effects of NB-UVB in treating chronic plaque type psoriasis three times weekly vs. five times weekly. Materials and Methods: This study was des...
BACKGROUND Combination UVB phototherapeutic regimens were introduced to improve therapeutic results and reduce cumulative UVB doses. OBJECTIVE Broadband UVB and UVB + bergamot oil (UVBB) therapies in the treatment of psoriasis were compared with regard to: efficacy, side effects, mean number of procedures, mean UVB dose, and duration of remissions. PATIENTS/METHODS One hundred and ninety th...
Ultraviolet B (UVB) radiation from the sun may lead to photocarcinogenesis of the skin. Sunscreens were used to protect the skin by reducing UVB irradiance, but sunscreen use did not reduce sunburn episodes. It was shown that UVB-induced erythema depends on surface exposure but not irradiance of UVB. We previously showed that irradiance plays a critical role in UVB-induced cell differentiation....
Purpose: Skin is continuously exposed to many hazardous environmental factors such as ultraviolet radiation (UV). Many investigations have been shown to cause skin damages. The aim of present research was to study the effect of a single time of UVB radiation on the expression pattern of keratinocyte growth factor (KGF) gene in mice. Materials and Methods: UVB (30 mJ/cm2 and 50 mJ/cm2) were rad...
BACKGROUND French farmers and their families constitute an informative population to study multiple sclerosis (MS) prevalence and related epidemiology. We carried out an ecological study to evaluate the association of MS prevalence and ultraviolet (UV) radiation, a candidate climatologic risk factor. METHODS Mean annual and winter (December-March) UVB irradiation values were systematically co...
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