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Define Criteria for Assessment of Niacin Status?
Niacin status can be monitored by daily urinary excretion of methylated metabolites, especially the ratio of the 2-pyridone to N'-methyl-nicotinmide, erythrocyte pyridine nucleotides, oral dose uptake tests, erythrocyte NAD, and plasma 2-pyridone.
Excretion of N-methyl nicotinamide in urine after an oral niacin load of 20 mg nicotinamide70 kg body weight over 24 hours is measured and levels of 4.8 m mol/dl represents deficiency and 5.8-17.5 m mol/dl represents low niacin status. Shibata and Matsuo suggest that the ratio of urinary 2-pyridone to NJ-methyl- nicotinamide .is as much a measure of protein adequacy as it is a measure of niacin status. The ratio of the 2- pyridone to N'-methyl-nicotinamide also appears to be associated with the clinical symptoms of pellagra, principally the dermatilic condition. In plasma, 2-pyridone levels change in reasonable proportion to niacin intake. As in the case of the erythrocyte pyridine nucleotides (nicotinamide coenzymes), NAD concentration decreased by 70% whereas NADP remained unchanged in adult males fed diets with only 6 or 10 mg NEs/day.
Explain in brief Chitinous? A structure which is composed of chitin, a complex carbohydrate composed of linearly arranged Nacetyl-glucosamine units. Chitin is a characteristic
Contact Osteogenesis In this the osteogenic cells attach to the implant surface and the new (de novo) bone is formed on the implant surface first. The developing bone matrix c
outline the process of yeast fermentation stating all enzymes involved
parts of a typical flower? define its parts and internal parts completely? show complete colourful diagram?
Determine People who are at risk from drug-nutrient interactions? People who are at risk from drug-nutrient interactions are the: 1. Persons who have a poor diet or in other
Why should you not apply cosmetics while doing a lab experiment in class?
Q. What are the major events of the first mitotic period? The first mitotic period is the prophase. During prophase the following events occur migration of each centriole pair
Biota of Littoral Zone This zone is the shore region of the marine ecosystems and is subject to violence of waves and tides, fluctuation of water level and variability of temp
Like DNA RNA is a long polymer having of nucleotides joined by 3'5' phosphodiester bonds. Furthermore, there are some differences: ? The bases in RNA are adenine abbr
What is Gum ghatti Gum ghatti, also known as Indian gum, is amorphous, translucent exudates of the Anogeissus latifolia tree of the Combretaceae family. Gum Ghatti is composed
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