HLSC 2P91 Lecture Notes - Lecture 7: Superoxide Dismutase, Retinol Binding Protein, Retinol
7 Nov 2016
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Lecture 7: fluid and electrolyte balance, blood/bone health. Essential chemical reactions including oxidation-reduction, electron exchange, the movement of energy from food to atp. Disrupt pair status of electrons: o2 accepts 1 electron during metabolism. Other factors contributing to free radical production. Immune system when fighting infections: pollution, excessive sun exposure, smoking tobacco, radiation. Free radical damage: destabilizing power, stealing electron from stable compounds (chain reaction, sites of damage include. Substance in food that significantly decreases adverse effects of reactive species on normal physiological functions. Vitamins donate electrons to stabilize free radicals. Found in food as retinol or retinyl ester compounds. Pro-vitamin of vitamin a: converted to retinol in sm. Ans: free radicals are formed as a by-product of healthy metabolism. Minerals convert free radical to less damaging substances. Minerals involved in blood health: iron, zinc, copper. Act as cofactors to enzymes that convert free radicals to less damaging substances: hydrogen peroxide, water and oxygen.
