Lecture_29_Foods_and_Cancer - Lecture 29 Vitamin C and...

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Lecture 29 Vitamin C and Cancer
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Exercise A. Weight Control 1. Responsible for Epidemic? 2. Helpful for controlling weight and health B. Maximizing Exercise 1. Water 2. High Carb, Low Fat Diet 3. B vitamins? 4. Iron? (+,-) 5. Protein? a. Adds little to muscle protein b. Amino acid balancing c. Growth (1) Kwashiorkor and Marasmus (2) Cancer (a) Prevent Cancer (i) Caloric Restriction (ii) Vitamin A
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Role of Vitamin A in epithelial functions Skin consists of epithelial cells Acne
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Acne 1. 85% of population between 12 and 25 suffer from acne 2. Caused by over-production of sebum a. Sebum carries skin cells surface b. Excess sebum plugs duct causing a comedo - Under skin appear white (whitehead) - If plugs goes to surface, turns black (blackhead)
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Acne 1. Not caused by diet . (chocolate, nuts, cola, potato chips, french fries or other “junk food”) 2. Androgens stimulate sebaceous secretions 3. Picking pimples can cause scaring.
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Acne 1.Retinoid 2.Most prescribed drug to treat acne. 3.Reduces sebum production 4.Taken orally 5.Problem: - toxic in high doses - may cause birth defects "ACCUTANE"
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Wrinkles 1.Used to tighten skin 2.High concentrations may cause birth defects 3.Effects are temporary a. As is Botox “Retin-A"
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Vitamin A Intake Normal Range 500-3000 microg nightblindness xeropthalmia keratinaziation of mucous forming cells death infection hemorrhages dermatitis fetal malformation redness of skin death liver toxicity
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Other Carotenoids 1. Lycopene have lower risk of prostate cancer 2. Beta-carotine have lower risk of oral cancers - Apricots, Broccoli, Carrots, Melon, Palm Oil, Papaya, Pumpkin, Spinach,
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Lecture_29_Foods_and_Cancer - Lecture 29 Vitamin C and...

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