منابع مشابه
Preparation of synaptoneurosomes from mouse cortex using a discontinuous percoll-sucrose density gradient.
Synaptoneurosomes (SNs) are obtained after homogenization and fractionation of mouse brain cortex. They are resealed vesicles or isolated terminals that break away from axon terminals when the cortical tissue is homogenized. The SNs retain pre- and postsynaptic characteristics, which makes them useful in the study of synaptic transmission. They retain the molecular machinery used in neuronal si...
متن کاملAlpha-synuclein decreases arachidonic acid incorporation into rat striatal synaptoneurosomes.
In the present study we investigated the role of alpha-synuclein (ASN) and its fragment NAC in arachidonic acid (AA) turnover in the rat brain. Our data indicated that ASN (10 microM) inhibited [3H]AA incorporation into phosphatidylethanolamine (PE), phosphatidylcholine (PC) and phosphatidylserine (PS) together with phosphatidic acid (PA) by 13%, 27% and 38%, respectively. NAC (10 microM) reduc...
متن کاملMicroRNA abundance is altered in synaptoneurosomes during prion disease
Discrepancy in synaptic structural plasticity is one of the earliest manifestations of the neurodegenerative state. In prion diseases, a reduction in synapses and dendritic spine densities is observed during preclinical disease in neurons of the cortex and hippocampus. The underlying molecular mechanisms of these alterations have not been identified but microRNAs (miRNAs), many of which are enr...
متن کاملCharacterization of barbiturate-stimulated chloride efflux from rat brain synaptoneurosomes.
Membrane chloride (Cl-) permeability was studied in a novel subcellular brain preparation, the synaptoneurosome. Using a radioactive tracer exchange technique, Cl- transport was determined by measuring 36Cl- efflux from rat cerebral cortical synaptoneurosomes. Barbiturates increased 36Cl- efflux in a dose-dependent manner with the following relative order of potency: 5-(1,3-dimethylbutyl)-5-eth...
متن کاملTranscriptome Analysis of Synaptoneurosomes Identifies Neuroplasticity Genes Overexpressed in Incipient Alzheimer's Disease
In Alzheimer's disease (AD), early deficits in learning and memory are a consequence of synaptic modification induced by toxic beta-amyloid oligomers (oAbeta). To identify immediate molecular targets downstream of oAbeta binding, we prepared synaptoneurosomes from prefrontal cortex of control and incipient AD (IAD) patients, and isolated mRNAs for comparison of gene expression. This novel appro...
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ژورنال
عنوان ژورنال: BIO-PROTOCOL
سال: 2021
ISSN: 2331-8325
DOI: 10.21769/bioprotoc.3896