nutrition and periodontal disease Flashcards
why is nutrition important
modulates immune response and the host defences are required optimal healing
defensive epithelial barrier of the junctional and crevicular epithelium
what does the rapid turnover of cells dependant on
vitamin A vitamin C protein folic acid iron
what is nutrigenomics
nutrition modifying gene expression and it the genetic basis for variable responses to diet
what are the major nutrients
consumed in gram qualities
such as protein
carbohydrate
lipids
what are the minor nutrients
milligram and microgram quantity
minerals such as calcium and magnesium
why are vitamins important
to maintain metabolic reactions
are vitamins made in sufficient amounts in the body
no- have to be supplied by food or made from a provitamin
which vitamins are fat soluble
vitamins A D E K
which vitamins are water soluble
vitamin C, B vitamins
describe vitamin A
it is essential for night vision and maturation of epithelial tissues
what happens when people have excess vitamin A
causes gingival erosions and bleeding
loss of keratinisation, headache,dry mouth and loss of hair
how can we help when a patient has excess vitamin A
gingival improvement seen in one week when excessive vitamins A was stopped
describe vitamin D
mantinains blood calcium levels and metabolism of osseous tissue
how can we get vitamin D
exposure to sunlight
and synthesised in the body but generally insufficient
when is the sunlight strong enough for in the UK for vitamin D
UV light is strongest in april to september
how do we get vitamin D
oil fish such as salmon and sardines
cod liver oil
egg yolk,meat and milk
some breakfast cereals are fortified with vitamin D
what is the active metabolic of 25-hydroxyvitamin D
1,25 dihydroxyvitamin D
what does the active metabolite inhibit
cytokine production and cell proliferation
probably linked to cancer, diabetes and CVD ]may be associated with vitamin D
what did NHANES III data show with vitamin D
D levels inversely associated with associated with attachment loss in pts older than 50
where is vitamin c made
by all plants and most animals
humans and non human primates and a few other animals can not make vitamin c
why is vitamin c important
required for collagen maturation (hydroxylation of lysine and proline)
what does deficiency of vitamins c cause
scurvy