Background: Topical application of 1a, 25-dihydroxyvitamin D3 (1-a,25-(OH)2D3) inhibits7, 12-dimethylbenz [a] anthracene (DMBA) and 12-a-tetradecanoylphorbol-13-acetate (TPA)-induced tumor formation of mouse skin. Ultraviolet irradiation (UV) may also induce skin tumors. However, no report exists regarding the effect of topical active vitamin D3, tacrolimus, or corticosteroids on UV-irradiation...

antioxidant consumption has been reported to be inversely associated with the incidence of coronary artery disease. to clarify the possible role of vitamin e and volatile oils in the prevention of atherosclerosis, the effects of these compounds on the susceptibility of low-density lipoprotein (ldl) to oxidative modification were investigated. in this study, vitamin e and seven volatile oils “an...

hyperandrogenism affects 2-6% of all women. hypertension is one of disturbances which is related to androgen excess. higher intakes of vitamin c and vitamin e have been associated with lower blood pressure. tho investigate the effect of these vitamin supplementation on blood pressure in hyperandrogenic women, a randomized, double-blind, placebo-controlled study was designed on 56 women 18-54 ye...

the objective of this study was to investigate the propensity of permethrin (ptn) to induce oxidative stress and changes in enzyme activities in liver of rainbow trout and its possible attenuation by vitamin c. forty-eight fish were randomly assigned to 1 of 6 treatment groups and their livers were used for liver perfusion method: control (0 μgl-1 permethrin and 0 mgl-1 vitamin c), ptn-0.16 (0....

introduction: lead (pb) is a neurotoxin that its different effects on the central nervous system are well-known. previous studies have reported the potent effects of vitamin c on memory.the present study was undertaken to evaluate the protective effects of vitamin c against leadinduced amnesia. methods: male wistar rats were divided into 4 groups: the control (saline), negative control (lead), ...

Abstract Conformation analysis of dehydroascorbic acid and its bicyclic form was performed using the density functional theory. For energetically preferred conformations, ionization potentials (IP) bond dissociation enthalpies (BDE) were calculated B3LYP 6-311++G** basis set. The effects aqueous solution estimated solvation model based on (SMD) polarizable continuum (IEF-PCM). obtained results ...

this study was undertaken to assess vitamin c status in allergic children. twenty-six allergic patients and 46 apparently healthy controls aged 7-16 years of both sexes were introduced. all patients were diagnosed being allergic based on their histories, physical examinations and laboratory findings. blood samples were obtained between 09.00-11.00 to determine total serum immunoglobulin e, hist...