Plasma adiponectin concentration is associated with skeletal muscle insulin receptor tyrosine phosphorylation and low plasma concentration precedes a decrease in whole-body insulin sensitivity in humans. - Stefan,N.; Vozarova,B.; Funahashi,T.; Matsuzawa,Y.; Weyer,C.; Youngren,J.F.; Havel,P.J.; Pratley,R.E.; Bogardus,C.; Tataranni,P.A. (Diabetes, 2002)