What are the Causes of Vitamin K Deficiency | Vitamin K (Phylloquinone)

What are the Causes of Vitamin K Deficiency | Vitamin K (Phylloquinone) | Symptoms of Vitamin K deficiency | Side Effects of Vitamin K intake

vitamin K defi'It is a fat-soluble vitamin and it is also known as antihaemorrhagic factor.

Dam discovered this vitamin after studying haemorrhagic disease in chickens in 1930 and 1933.

Two naturally occurring vitamins K are vitamin K1 (phyllouinone, phytonadione) and vitamin K2 (flavinoquinone, farnoquinone Activity is apparently related to the presence of methyl group at 2 positions in the quinonoid ring. Synthetic vitamin K is called vitamin K2 (commercially menadione).

It is fat-soluble; heat stable and can stand cooking. Vitamin K1 is yellow viscid oil, but vitamin K2 is a yellow, crystalline solid. The K vitamins are readily destroyed by light, alkali & alcohol.

What are the Causes of Vitamin K Deficiency ?

vitamin K defiVitamin K deficiency decreases levels of prothrombin and other vitamin K–dependent coagulation factors, causing defective coagulation and, potentially, bleeding.

Etiology

Worldwide, vitamin K deficiency causes infant morbidity and mortality. Vitamin K deficiency causes hemorrhagic disease of the newborn, which usually occurs 1 to 7 days postpartum. In affected neonates, birth trauma can cause intracranial hemorrhage. Neonates are prone to vitamin K deficiency because of the following:

* The placenta transmits lipids and vitamin K relatively poorly.
* The neonatal liver is immature with respect to prothrombin synthesis.
* Breast milk is low in vitamin K, containing about 2.5 μg/L (cow’s milk contains 5000 μg/L).
* The neonatal gut is sterile during the first few days of life.

  • Late hemorrhagic disease (occurring 3 to 8 wk postpartum) is usually associated with breastfeeding, malabsorption, or a liver disorder. If the mother has taken phenytoin anticonvulsants, coumarin anticoagulants, or cephalosporin antibiotics, the risk of both types of hemorrhagic disease is increased.
  • vitamin K defi1

  • In healthy adults, dietary vitamin K deficiency is uncommon because vitamin K is widely distributed in green vegetables and the bacteria of the normal gut synthesize menaquinones.
  • However, biliary obstruction, malabsorption, cystic fibrosis, and resection of the small intestine can contribute to vitamin K deficiency.
  • Coumarin anticoagulants interfere with the synthesis of vitamin–K dependent coagulation proteins (factors II, VII, IX, and X) in the liver. Certain antibiotics (particularly some cephalosporins and other broad-spectrum antibiotics), salicylates, megadoses of vitamin E, and hepatic insufficiency increase risk of bleeding in patients with vitamin K deficiency.
  • Symptoms of Vitamin K Deficiency ?

    Deficiency Symptoms of vitamin K:

    1. Unusual bleeding, such as from the gums, nose, or gastrointestinal tract.

    2. Nosebleeds.

    3. Unexplained bruising.

    4. Eye hemorrhages.

    vitamin K defi2Defective blood coagulation and haemorrhages. In vitamin K deficiency, the prothrombin content of blood is decreased and the blood clotting time is considerably prolonged. Deficiency of vitamin K may lead to Alzheimer’s disease.

    What are the Side Effects of Vitamin K intake ?

    Vitamin K deficiency is very rare. It occurs when the body can’t properly absorb the vitamin from the intestinal tract. Vitamin K deficiency can also occur after long-term treatment with antibiotics.

    Individuals with vitamin K deficiency are usually more likely to have bruising and bleeding.

    PAIN AND DISCOMFORT: Overdosing on vitamin B2 can cause your skin to itch whilst overdosing on vitamin A can lead to the more serious symptom of diarrhea.

    vitamin K defi3CELL AND ORGAN DAMAGE: Consuming too much vitamin K can also damage your liver and red blood cells.
     
    BONE RELATED PROBLEMS: Overdosing on certain vitamins can lead to a variety of bone related problems. Among all vitamins vitamin K is one of them which also effects the Bone related problems.

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