NS 1150 Lecture Notes - Lecture 33: Inflammatory Bowel Disease, Coeliac Disease, Spasm
18 Dec 2016
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Document Summary
Us has highest calcium consumption in the world. Direct relationship between protein consumption and calcium lost. Eating protein resultsi n increased blood amino acids. Ca is also necessary for removing amino groups from kidney. Physical relationship between protein eaten and calcium lost. More animal protein ---> higher % bone loss. As we get older we get more osteoclasts. Women menopause stops estrogen (has effect in maintaining bones) Ca = critical for neural and muscle function. Parathyroid gland secretes parathyroid hormone which increases. Ca reabsorption, stimulates ca loss from bone, and activates. Thyroid gland secreates calcitonin which inhibits ca loss from bone, increases ca loss from kidney. Caucasian or asian ethnicity (because they are smaller) Low calcium parathyroid hormone stimulates ca loss from bone, increases ca reabsorption, increases ca absorption (after activating vitamin d) Low blood vitamin d associated with increase in: (not experimental, but societal studies) Cancers of the colon, prostate, and breast. Seasonal changes are reflected in bone density.
