Chapter 12: The Antioxidant Nutrients
Chapter 12: The Antioxidant Nutrients
- start march 4 at ~ 42 mins -
Slide 1 * we produce a lot of reactive oxygen species (ROS) from reactions in the body, especially from energy metabolism * these ROS can damage the molecules in the body, especially in dna and rna molecules and lipids. This can have serious consequences on the health of the individual * one of the ways that the body deals with ROS is by having compounds that can help to neutralize the radicals or protect the body from exposure and getting damaged by them
Slide 2 * there are both vitamins and minerals that function as antioxidants * they quench free radicals which are things that are produced from normal metabolism, especially energy metabolism. …show more content…
* if you have vitamin A deficiency in another part of the eye, you can experience much more devastating problems with the eye, specifically blindness because if you don't have enough retinal in the cornea, you wont be able to maintain the integrity of that area which can lead to xerosis, which is the condition where the cornea becomes dry and hard * if something is not done quickly, permanent damage can occur which is the development of keratomalacia (the softening of the cornea) which is irreversible – get xerophthalmia which is blindness due to vitamin A deficiency
Slide 16 * if you don't have enough vitamin A in your epithelial cells the cells will be abnormal because you need vitamin A to maintain the integrity of those cells * the protein called keratin which makes hair and nails hard is important but you’re not suppose to produce a lot of it in the skin * an individual with vitamin A deficiency produces a lot of keratin in the skin and skin becomes keratinized * the condition where skin becomes keratinized is called keratinization * keratinization happens to the epithelial cells of the skin, but damages to the epithelial cells lining other body surfaces can happen as well like in the GI tract, urninary tract and bronchi * the deficiency disease due to vitamin A is hypovitaminosis A
Slide
- start march 4 at ~ 42 mins -
Slide 1 * we produce a lot of reactive oxygen species (ROS) from reactions in the body, especially from energy metabolism * these ROS can damage the molecules in the body, especially in dna and rna molecules and lipids. This can have serious consequences on the health of the individual * one of the ways that the body deals with ROS is by having compounds that can help to neutralize the radicals or protect the body from exposure and getting damaged by them
Slide 2 * there are both vitamins and minerals that function as antioxidants * they quench free radicals which are things that are produced from normal metabolism, especially energy metabolism. …show more content…
* if you have vitamin A deficiency in another part of the eye, you can experience much more devastating problems with the eye, specifically blindness because if you don't have enough retinal in the cornea, you wont be able to maintain the integrity of that area which can lead to xerosis, which is the condition where the cornea becomes dry and hard * if something is not done quickly, permanent damage can occur which is the development of keratomalacia (the softening of the cornea) which is irreversible – get xerophthalmia which is blindness due to vitamin A deficiency
Slide 16 * if you don't have enough vitamin A in your epithelial cells the cells will be abnormal because you need vitamin A to maintain the integrity of those cells * the protein called keratin which makes hair and nails hard is important but you’re not suppose to produce a lot of it in the skin * an individual with vitamin A deficiency produces a lot of keratin in the skin and skin becomes keratinized * the condition where skin becomes keratinized is called keratinization * keratinization happens to the epithelial cells of the skin, but damages to the epithelial cells lining other body surfaces can happen as well like in the GI tract, urninary tract and bronchi * the deficiency disease due to vitamin A is hypovitaminosis A
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