PT - JOURNAL ARTICLE AU - Zhe Zhao AU - Edgar Soria-Gómez AU - Marjorie Varilh AU - Francisca Julio-Kalajzić AU - Astrid Cannich AU - Adriana Castiglione AU - Léonie Vanhoutte AU - Alexia Duveau AU - Philippe Zizzari AU - Anna Beyeler AU - Daniela Cota AU - Luigi Bellocchio AU - Arnau Busquets-Garcia AU - Giovanni Marsicano TI - Top-down control of water intake by the endocannabinoid system AID - 10.1101/729970 DP - 2019 Jan 01 TA - bioRxiv PG - 729970 4099 - http://biorxiv.org/content/early/2019/08/09/729970.short 4100 - http://biorxiv.org/content/early/2019/08/09/729970.full AB - Water intake is regulated by neocortical top-down circuits, but their identity and the cellular mechanisms involved are scantly known. Here, we show that endogenous activation of type-1 cannabinoid receptors (CB1) promotes water intake and that endocannabinoid modulation of excitatory projections from the anterior cingulate cortex to the basolateral amygdala is sufficient to guarantee physiological drinking. These data reveal a new circuit involved in the homeostatic control of water intake.