Carbohydrate coefficient transferrin

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Until recently, γ-glutamyltransferase (GGT) was considered the best biochemical marker of one of the most common causes of liver damage, alcohol abuse. Another parameter is currently being added, carbohydrate deficient transferrin (CDT).

As a glycoprotein, transferrin usually contains four to six sialic acid residues in its molecule . Chronic alcohol abuse (60 g of alcohol per day for at least two to three weeks) increases the proportion of transferrin in which sialic acid is absent (0-2 sialic acids per molecule) - so-called carbohydrate deficient transferrin (CDT). It is considered a sign of chronic alcohol abuse if the CDT content exceeds 6% of the total transferrin. CDT levels remain elevated for about 2 weeks after the onset of abstinence.

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