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Posts Tagged ‘way’

Test For Vitamin B12 Deficiency

Tuesday, February 6th, 2007

Vitamin B12

Until recently, it has been difficult to test for vitamin B12 deficiency. An inability to properly absorb vitamin B-12 causes pernicious anemia and leads to fatigue and neurological problems. Physicians lacked a safe and simple way to test their patients for poor vitamin B12 absorption. In humans, only two enzymatic reactions are dependent on vitamin B12. In the first reaction, methylmalonic acid is converted to succinyl-CoA by using vitamin B12 as a cofactor. Vitamin B12 deficiency can lead to increased levels of serum methylmalonic acid. Homocysteine is converted to methionine by using vitamin B12 and folic acid as cofactors. A deficiency of vitamin B12 or folic acid may lead to increased homocysteine levels. An understanding of the vitamin B12 absorption cycle helps clarify the potential causes of deficiency. The acidic environment of the stomach helps to breakdown the vitamin B12 that is bound to food. The intrinsic factor that is released by parietal cells in the stomach binds to vitamin B12 in the duodenum.

New Test

Extensive research has resulted in a more accurate and safer test for vitamin B12 deficiency.The new test involves drinking a small amount of vitamin B12 labeled with radioactive carbon 14, and then extracting a drop of blood. The amount of carbon 14 labeled vitamin B12 in the blood sample is measured with an accelerator mass spectrometer that can count single atoms of carbon 14. The radiation dose involved is equivalent to that received on a cross-country flight.

Vitamin B12

Tuesday, February 6th, 2007

Importance Of Vitamin B12

The human body stores vitamin B12 for long periods, a nutritional deficiency of this vitamin is quite unusual. A deficiency can result from the body being unable to absorb vitamin B12. Inability to absorb vitamin B12 from the intestine can be caused by a disease known as pernicious anemia. Strict vegetarians who do not take in proper amounts of vitamin B12 by way of supplements are prone to deficiency. Low levels of vitamin B12 can cause anemia, numbness or tingling in the extremities and other neurological symptoms such as weakness and loss of balance.

Lack Of Vitamin B12

Vitamin B12 is a very important vitamin needed for maintaining healthy nerve cells, and also aids in the synthesis of DNA. In addition, Vitamin B12 works closely together with folic acid to regulate the formation of red blood cells and to help iron absorption in the body. Deficiencies of vitamin B12 are usually caused by a lack of intrinsic factor.  Intrinsic factor is a substance produced in the stomach that allows the body to absorb vitamin B12 from the digestive system. Vitamin B12 deficiency can cause a range of symptoms including fatigue, shortness of breath, diarrhea, nervousness, and numbness or tingling sensation in the fingers and toes. People with pernicious anemia do not produce enough intrinsic factor and must take supplementary doses of vitamin B12 to maintain their health. People who have had stomach surgery are at risk for vitamin B12 deficiency and pernicious anemia. They often require vitamin B12 injections after the surgery.

Vitamin B12 Injection Benefits

Monday, January 15th, 2007

About Vitamin B12 Injections

Vitamin B12 injections are only administered when there is no other way of supplementation. Injections are mostly used in cases of diseases caused by vitamin B12 deficiency. Injections are usually administered to people who have a medical problem known as pernicious anemia, a condition in which the patient is not capable of absorbing vitamin B12 via the intestine. Injections are also administered to those who suffer from a diseased intestine or have a large part of their stomach or intestines removed. Vitamin B12 injections are only given by or under the supervision of a health care professional. In the United States, injections of vitamin B12 are generally available in two types, cyanocobalamin and hydroxocobalamin.

Advantages of Vitamin B12 Injections

Vitamin B12 injections have been used for a long time, especially by many politicians and famous personalities from the entertainment industry. There are several reasons why. The injection contains 500 times more vitamin B12 than the recommended daily dosage.  When injected, vitamin B12 is easily absorbed by the body and then utilized in the formation of red blood cells as well as aiding in the maintenance of a healthy nervous and cardiovascular system.  The three major health benefits of vitamin B12 injections are an increase in energy, sleeping better, and a feeling of alertness.  However, people often complain of bruises and soreness in the area where the vitamin B12 was injected.

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