Intestinal Clock Promotes Cognitive Memory Through Adenosine Signaling.

ABSTRACT: Although the intestinal clock (the circadian timing system in the gastrointestinal tract) is known to direct a wide variety of diurnal nutrients and metabolites, its role in the functioning of extra-intestinal tissues such as the brain remains elusive. Here the role of the intestinal clock in shaping cognitive function is investigated. It is found that Bmal1-iKO mice (mice with Bmal1 [Brain and muscle Arnt-like protein 1] specifically knocked out in the intestine, a mouse line deficient in intestinal clock function) show a defect in cognitive memory irrespective of the time-of-day. Bmal1-iKO-associated cognitive decline is attributed to impaired adenosine signaling and compromised long-term potentiation (LTP) in the hippocampus. Adenosine signaling promotes LTP via enhancing BDNF expressio

SUBMITTER: Chen M 

PROVIDER: S-EPMC12442615 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature