Increased expression of mRNA for the long form of the leptin receptor in the Hypothalamus is associated with leptin hypersensitivity and fasting. - Baskin,D.G.; Seeley,R.J.; Kuijper,J.L.; Lok,S.; Weigle,D.S.; Erickson,J.C.; Palmiter,R.D.; Schwartz,M.W. (Diabetes, 1998)