C1QTNF3 and Insulin resistance: A study showed that fasting CTRP3 levels are positively associated with HOMA-β (an index for evaluating the function of individual islet β cells) and negatively related to HOMA-IR (an index for evaluating individual’s insulin resistance level), fasting plasma glucose (FPG), 1-h PG, 2-h PG, and fasting plasma C-peptide in the gestational diabetes mellitus patients (the specific cases are unknown) (Li et al., 2017).