however , proinsulin was reduced after oral glucose ( 4.7 +/- 0.7 vs. 7.9 +/- 2.0 pmol/l , p less than 0.05 ) as was c-peptide ( 0.9 +/- 0.2 vs 2.6 +/- 0.3 nmol/l , p less than 0.05 ) .
C0033362
proinsulin
C0006558
c-peptide