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We studied how nicotinic acetylcholine receptors (nAChRs) regulate glutamate release in the secondary motor area (Fr2) of the dorsomedial murine prefrontal cortex, in the presence of steady agonist levels. Fr2 mediates response to behavioral situations that require immediate attention and is a candidate for generating seizures in the frontal epilepsies caused by mutant nAChRs. Morphological analysis...
Glycogen synthase kinase‐3β (GSK3β) activity has been previously linked to Alzheimer's disease (AD) by its phosphorylation of tau and activation by amyloid. GSK3β intracellular distribution is important in regulating its activity by restricting access to compartment‐specific substrates. This study investigated regional and intracellular distribution of GSK3β in a mouse model of AD, a bigenic mouse...
It is documented that stress activates the locus coeruleus‐norepinephrine system. However, there are far few reports regarding effects of stress on the expression of dopamine β‐hydroxylase, a hallmark enzyme of the noradrenergic neuron. In the present study, adult Fischer 344 rats were subjected to chronic social defeat for 4 weeks. Dopamine β‐hydroxylase expressional levels in the locus coeruleus...
Imaging the cerebral serotonin 2A (5‐HT2A) receptors with positron emission tomography (PET) has been carried out in humans with [11C]MDL 100907 and [18F]altanserin. Recently, the MDL 100907 analogue [18F]MH.MZ was developed combining the selectivity profile of MDL 100907 and the favourable radiophysical properties of fluorine‐18. Here, we present a direct comparison of [18F]altanserin and [18F]MH...
Brain inflammation in early life has been proposed to play important roles in the development of anxiety and psychosis‐related behaviors in adulthood, behaviors that rely on the integrity of dopamine and/or serotonin systems. Moreover recent behavioral and anatomical evidence suggests involvement of CB1 receptors in the control of emotion and mood. In this study, we determined the effects of neonatal...
The nucleus accumbens (Acb) contains subpopulations of neurons defined by their receptor content and potential involvement in sensorimotor gating and other behaviors that are dysfunctional in schizophrenia. In Acb neurons, the NMDA NR1 (NR1) subunit is coexpressed not only with the dopamine D1 receptor (D1R), but also with the µ‐opioid receptor (µ‐OR), which mediates certain behaviors that are adversely...
α‐Synuclein (α‐syn) protein and endocannabinoid CB1 receptors are primarily located in presynaptic terminals. An association between α‐syn and CB1 receptors has recently been established in Parkinson's disease, but it is completely unknown whether there is an association between these two proteins in alcohol addiction. Therefore, we aimed to examine the α‐syn mRNA transcript and protein expression...
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