2 resons for vitamin a in eye

2 resons for vitamin a in eye - 2 resons for vitamin a in...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
2 resons for vitamin a in eye Rhodopsin to prevent night blindness Prevent xerostalamia Enzyme cat bioton to apocarboxylases Holo-carboxylase synthase 3 ways 1-hydroxylase in kidney Pth- increases activity of Feed back inhibition Serum phosphorus 1. Studies for vit K and bone health a. Decr risk of fractures b. Low phyll intake and low vit k status incr risk hip fractures c. Also less bone mineral density 2. 3 hormones in regulation of blood calcium and function of each a. Pth i. Incr cr. b. Calcitonin i. Tones down c. Calcitriol i. Goes up 3. 3 symptoms in mg defiency a. Hypomagnesia b. Hypocalcemia c. Hypokalemia i. Also low vit d
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4. Pth affect phosphorus excretion? a. Increases it 5. Aldehyde form vit a a. Retional 6. Glycoperotein in a. Avidin 7. Calcitriol binds to vit d receptor and incr osteoblasts, increases transcription of rankle, send receptor signal and differentioates to osteoblast 8. 3 steps of free radical process a. Initation b. Propagation c. Termination
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/16/2009 for the course HUN 4221 taught by Professor Shellnut during the Spring '09 term at University of Florida.

Page1 / 5

2 resons for vitamin a in eye - 2 resons for vitamin a in...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online