a, K252a attenuates the Tat–RACK1 effect on
voluntary ethanol intake in mice. Tat–RACK1 (4 mg/kg), Tat–RACK1 (4
mg/kg) plus K252a (25 μg/kg), or vehicle was administered at 3 P.M., and the
amount of ethanol consumed overnight was recorded. Data are presented as mean ±
SEM grams/kilogram of body weight. n = 12. *p <
0.01 compared with vehicle. b,
c, Activation of the BDNF receptor TrkB regulates
ethanol consumption. The Trk receptor inhibitor K252a (5 and 25 μg/kg) or
vehicle was administered at 3 P.M., and the amount of ethanol consumed overnight was
recorded. Data are presented as mean ± SEM grams/kilogram of body weight.
b, Inhibition of the Trk receptor increases
ethanol intake in BDNF+/+ mice. n = 12.
*p < 0.05 compared with saline.
c, K252a has no effect on ethanol intake in
BDNF+/− mice (n = 9).