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define the role of vitamin d in the immune system immune responses that are mediated by t-cells can be inhibited by tile large doses of calcitriol ie
explain inhibition of cancer cell proliferation and growthvitamin d diminishes proliferation of abnormal intestinal lymphatic mammary and skeletal
define regulation of amino acid levels in the bloodregulation of amino acid levels in the blood vitamin d helps to prevent loss of amino acids
explain the formation of enzymeformation of enzyme vitamin d is essential for the formation of two enzymes - alkaline phosphtase in the
modulation of the transcription of cell cycle proteinsthe 125-ohd compound calcitriol is present in the blood complexes to the vitamin
define bone growth and development calcification of osteoid tissue vitamin d participates in metabolic processes associated with bone growth and
define mineralizations and formation of new bonevitamin d plays a role in the synthesis of a prominent non collage nous protein osteocalcin a vitamin
define functions of vitamin dvitamin d is required to maintain normal blood levels of calcium and phosphate which are in turn needed for the normal
define the sources of vitamin dvitamin d also called the sunshine vitamin is easily manufactured in the skin from 7-dehydro cholesterol on exposure
explain the interaction of vitamin a with ironiron iron status of an individual correlates with vitamin a the deficiency of vitamin a has been
explain the interaction of vitamin a with zincits deficiency interferes with vitamin a metabolism it leads to a reduction in the synthesis of plasma
explain the interaction of vitamin a with proteinsproteins the protein status of an individual influences vitamin a status and transport because an
explain the interaction of vitamin a with vitamin eof the various nutrients the interaction of vitamin e proteins zinc and iron with vitamin a is of
explain the dark adaptation of vitamin ain the early stages of vad the individual cannot see objects in dim light this phenomenon is used as a
explain the liver biopsy assaysthese are used to measure the total vitamin a stores as well us the response in levels of vitamin a relative to
explain dietary assessment criteria for vitamin aseveral methods can be adopted for the dietary assessment of vitamin a such as food frequency weekly
explain the conjunctival impression cytology cicconjunctival impression cytology cic is a simple rapid and inexpensive method which is suitable for a
explain about the toxicity - fat soluble vitaminbecause vitamin a is fat-soluble and can be stored primarily in the liver routine consumption of
define conditions associated with increased need for vitamin aconditions and populations associated with increased need for vitamin a includes young
explain the deficiency and toxicity of vitamin awho defines vad as tissue concentrations of vitamin a low enough to have adverse health consequences
define role in protein metabolism and growthsevere vitamin a deficiency results in abnormal rna metabolism and protein synthesis and hence interferes
determine the role as antioxidantsome carotenoids in addition to serving as a source of vitamin a have been shown lo function as antioxidants studies
define integrity of epithelial tissuesvitamin a is essential for the integrity of the mucous-secreting cells in fact vitamin a maintains the health
define the role of vitamin a in immune responsevitamins a is essential to normal immune function and- regulation as discussed above during vitamin a
define role in growth and cellular differentiationthe growth and differentiation of epithelial cells throughout the body are especially affected by