Leptin-regulated endocannabinoids are involved in maintaining food intake. - Di Marzo, Vincenzo; Goparaju, Sraven K.; Wang, Lei; Liu, Jie; Batkai, Sandor; Jarai, Zoltan; Fezza, Filomena; Miura, Grant I.; Palmiter, Richard D.; Sugiura, Takayuki; Kunos, George (Nature, 2001)