C peptide

C peptide

C-peptide (from the English. Connecting peptide , "connecting" peptide) - a peptide formed during the cleavage of proinsulin by peptidases. Together with the resulting insulin, the C-peptide is secreted into the bloodstream. Abnormally low levels of the C-peptide may indicate a decrease in insulin production, excessively high levels may indicate the presence of insulinomas . Being a “by-product” of the production of the important hormone insulin, the C-peptide itself is a biologically active molecule. ^[1] Since the mid -1990s, there has been an active study of its functions and a possible therapeutic role. ^[2]