C1QTNF3 and diabetes mellitus: The conflicting results were attributed to several possible causes, including small sample sizes, possible compensatory effect of CTRP3, and/or the medications used by the diabetes patients; the last point is particularly relevant as several glucose-lowering medications (e.g., GLP-1 receptor agonists and metformin) are now known to affect CTRP3 levels [28,36].