Zinc (Zn) in blood (chromatography)
Zinc is a cofactor of more than 200 enzymes (transferases, hydrolases, isomerases), is a part of some transcription factors (the so–called zinc fingers) and stabilizes cell membranes. Zinc absorption occurs in the duodenum and jejunum. Some food components (for example, animal proteins) contribute to the absorption of zinc, and, conversely, phytic acid and iron prevent its active absorption.
The daily requirement for zinc depends on the age and physiological state of the body: for an adult man, the recommended norm is 11 mg per day, for an adult woman – 8 mg. Pregnant women, nursing mothers, children and adolescents need up to 12-15 mg of zinc per day. Both zinc deficiency and excess have adverse effects on the functioning of many systems and organs.
To assess the balance of zinc in the body, diagnose its deficiency or intoxication, its concentration in the blood is examined. It is believed that the level of zinc in the blood most accurately reflects its reserves in the body.