BDNF and major depressive disorder: While there are no positive reports of the rs7124442 related to MDD, Zhang et al.(2010) found gene‐gene interaction effects between BDNF and GSK3B in mood disorders in a Chinese population, which include the association of the BDNF rs7124442 variant and Glycogen synthase kinase 3 beta (GSK3B) rs6782799, BDNF rs6265, BDNF rs7124442, and GSK3B rs6782799.