481 Lipoperoxidation and vitamin C status in psoriasis

Assessment of vitamin C status.

Vitamin C is L-xyloascorbic acid (ascorbic acid, AA). Its first oxidation product is dehydroascorbic acid (dehydroAA) which also possesses vitamin C activity, possibly because of the ease with which many animal tissues can reduce it back to AA (Grimble & Hughes, 1967). AA and dehydroAA may be referred to as ‘total vitamin C’. T h e determination of AA, or of AA and dehydroAA, is central to all ...

Screening for vitamin c status.

vitamin c status in allergic children

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...

Agreement among indicators of vitamin C status.

Agreement among three indicators of vitamin C status--serum ascorbate level, a 24-hour recall, and the frequency of fruit and vegetable consumption--was examined using data from the Second National Health and Nutrition Examination Survey conducted between 1976 and 1980. Agreement between pairs of these indicators was good when assessed at the group level but inconsistent at the individual level...

UVB and Vitamin D in Psoriasis

Phototherapy (broadband UVB, narrowband UVB (NBUVB) and heliotherapy – treatment with natural sunlight) is a commonly used treatment modality for widespread psoriasis. A similar wavelength spectrum of UVB (280-315 nm) is responsible for vitamin D synthesis in the skin. Vitamin D3, or cholecalciferol, is produced from 7-dehydrocholesterol in the basal epidermis when exposed to UVB, and is then h...