SAVED
File name .JPG
File alt. text
Image should be px wide x px tall.
Select Image
home - Nutrition - Vitamins - Vitamin K Written by Dr Sebastian Zeki

Vitamin K

Micelles K Pancreatic enzymes Bile acids Absorption into enterocyte in distal small bowel Packaged into chylomicrons Bone formationCofactor in some bone mineralization proteins eg.osteocalcin Actions Vitamin K Carboxy-glutamate + Factors VII, IX, X Acitvated Factors VII, IX, X Vitamin K epoxide Vitamin k quinone Vitamin k quinol Reductase Reductase Warfarin Causes: 1. Antibiotics (by altering colonic flora)- can also inhibit vitamin K epoxide reductase enzyme in the liver 2. Prolonged starvation and TPN. 3. High doses of vitamin E and A antagonize vitamin K. 4. Newborn (immature liver, low vitamin K content of breast milk, a sterile gut, and poor placental transfer of vitamin K)- usually resolves in 1 month otherwise get hemorrhagic disease of the newborn. Clotting Protein K Dietary vitamin K1 (phylloquinones) Source: Green vegetablesRDA: 90 mcg/d women 120mcg/d menGut derived vitamin K2 - (menaquinone)Source: Gut micro-flora Vitamin K Sources Deficiency Written by Dr Sebastian Zeki

Related Stories

•Bacimethrin, an allelopathic vitamin B1 antagonist, is linked with microbial gene expression patterns in a hypereutrophic watershed

•Thiamine (vitamin B1) levels and sensory properties of cooked rice: Exploring varietal differences

•Comparative Analysis of Microneedling With PRP Versus Vitamin C Serum in the Management of Post-Operative Cleft lip Scars

•A case of spontaneous regression of primary hepatic diffuse large B-cell lymphoma

•Combatting Cadmium Toxicity in Animals with Nature-Derived Remedies: Mechanisms and Mitigation