Search results for "CB1 cannabinoid receptor"

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Specific Hippocampal Interneurons Shape Consolidation of Recognition Memory

2020

Summary A complex array of inhibitory interneurons tightly controls hippocampal activity, but how such diversity specifically affects memory processes is not well understood. We find that a small subclass of type 1 cannabinoid receptor (CB1R)-expressing hippocampal interneurons determines episodic-like memory consolidation by linking dopamine D1 receptor (D1R) signaling to GABAergic transmission. Mice lacking CB1Rs in D1-positive cells (D1-CB1-KO) display impairment in long-term, but not short-term, novel object recognition memory (NOR). Re-expression of CB1Rs in hippocampal D1R-positive cells rescues this NOR deficit. Learning induces an enhancement of in vivo hippocampal long-term potenti…

MaleAnimals CB1 receptor D1 receptor Dopamine Endocannabinoid system GABA Hippocampus Interneurons Long-term potentiation Male Memory Mice Novel object recognition Recognition PsychologyCB1 receptorCB1 cannabinoid receptorsD(1) receptorhippocampus[SDV]Life Sciences [q-bio]D1 receptorneuronsCB(1) receptorArticleCA1informationMiceGABAMemoryAnimalsendocannabinoid systemlong-term potentiationinterneuronsmusculoskeletal neural and ocular physiologyRecognition Psychologyepisodic memoryinhibition[SDV] Life Sciences [q-bio]modulationnervous systemdopamineLTPnovel object recognition memory
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Prenatal exposure to cannabinoids evokes long-lasting functional alterations by targeting CB 1 receptors on developing cortical neurons

2015

The CB1 cannabinoid receptor, the main target of Δ(9)-tetrahydrocannabinol (THC), the most prominent psychoactive compound of marijuana, plays a crucial regulatory role in brain development as evidenced by the neurodevelopmental consequences of its manipulation in animal models. Likewise, recreational cannabis use during pregnancy affects brain structure and function of the progeny. However, the precise neurobiological substrates underlying the consequences of prenatal THC exposure remain unknown. As CB1 signaling is known to modulate long-range corticofugal connectivity, we analyzed the impact of THC exposure on cortical projection neuron development. THC administration to pregnant mice in…

cannabisBioquímicaCannabinoid receptorCB1 cannabinoid receptorNeurocienciasBrain Structure and FunctioncorticospinalBiologyMiceGlutamatergicReceptor Cannabinoid CB1Pregnancymental disordersmedicineAnimalsDronabinolReceptorseizuresCerebral CortexNeuronsMultidisciplinaryneurodevelopmentorganic chemicalsBiological SciencesMotor neuronmedicine.anatomical_structurenervous systemMaternal ExposureCerebral cortexForebrainGABAergicFemalelipids (amino acids peptides and proteins)NeuroscienceProceedings of the National Academy of Sciences
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