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NMDA receptor activation can alter synaptic strength, cause cell death, and may modulate the release of glutamate and other neurotransmitters. Using a specific and selective antiserum directed against the R1 subunit of the NMDA receptor, we examined (1) whether NMDA receptors in the adult rat visual cortex are exclusively postsynaptic or also presynaptic(More)
A series of electron microscopic immunocytochemical studies was performed to analyze subcellular sites for noradrenergic modulation in monkey prefrontal cortex. One out of 12 noradrenergic varicosities, identified by dopamine beta-hydroxylase immunocytochemistry within single ultrathin sections, forms morphologically identifiable junctions with small(More)
Through molecular cloning, the existence of three distinct subtypes of alpha 2-adrenergic receptors (alpha 2AR)--A, B and C--has been established and are referred to as alpha 2A AR, alpha 2B AR and alpha 2CAR. Due to limitations in pharmacological tools, it has been difficult to ascribe the role of each subtype to the central functions of alpha 2AR. In situ(More)
Activation of alpha 2-adrenergic receptors (alpha 2AR) in the cerebral cortex has been shown to modulate visually guided delayed response tasks as well as anxiety and depression. We used an antiserum directed specifically against the A subtype of alpha 2AR (alpha 2AAR) to determine the cell types and subcellular sites for noradrenergic reception mediated by(More)
Sexual dimorphisms and/or hormone modifiability have been documented for numerous structural endpoints in the cerebral cortex, including cortical thickness and dendrite morphology. The present study asked whether gonadal steroids might also sculpt cortical circuit organization. Accordingly, neonatal gonadectomy, with and without testosterone propionate(More)
OBJECTIVE The aim of this study is to assess recent trends in health resource utilisation and patient outcomes of Medicare beneficiaries with chronic liver disease (CLD). SETTING Liver-related mortality is the 10th leading cause of death in the USA, and hepatitis C virus (HCV) and obesity-related non-alcoholic fatty liver disease are the major causes of(More)
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