B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism. Though these vitamins share similar names, research shows that they are chemically distinct vitamins that often coexist in the same foods. In general, supplements containing all eight are referred to as a vitamin B complex. Individual B vitamin supplements are referred to by the specific name of each vitamin (e.g., B1, B2, B3 etc.).
Vitamin B12 or cyanocobalamin, is a complex corrinoid compound found exclusively from animal dietary sources, such as meat, eggs and milk. It is critical in normal DNA synthesis, which in turn affects erythrocyte maturation and in the formation of myelin sheath. Vitamin-B12 is used to find out neurological abnormalities and impaired DNA synthesis associated with macrocytic anemias. For diagnostic purpose, results should always be assessed in conjunction with the patients medical history, clinical examination and other findings.
METHOD : C.L.I.A. (By Beckman Coulter)
PRIMARY SAMPLE : SERUM
Vitamin D is a precursor of the steroid hormone 1,25-(OH)2D3 which binds to and activates the transcription factorVDR (Vitamin D receptor).The vitamin D-VDR complex regulates2-3% of the human genome and thus has a major influence on the human organism. Skin exposure to ultraviolet (UV) radiation from the sun is the main source of vitamin D. Sources of vitamin D in the diet include fatty fish such as herring and salmon. Vitamin D Insufficiency Vitamin D deficiency is a major global health problem. Several population studies have identified widespread 25-OH insufficiency in apparently otherwise healthy populations.Indication of Vitamin D measurement
Suspicion of vitamin D insufficiency/ Pregnancy/ Liver diseases/ Kidney diseases/ Estimation of the cardiovascular risk/ Determination of the nutrive/vitamin D status/ Suspicion of Vitamin D-Intoxication