Down-regulation of V1a vasopressin receptors in the cerebellum after myocardial infarction

► We determine V1a receptors (V1aR) expression after myocardial infarct and stress. ► V1aR mRNA expression is reduced in the cerebellum after myocardial infarct. ► V1aR protein expression is reduced in the cerebellum after myocardial infarct. ► V1aR mRNA and protein do not change in the cerebellum after chronic stressing. ► V1aR are down-regulated in the cerebellum after the myocardial infarction.