نتایج جستجو برای: synaptosome
تعداد نتایج: 328 فیلتر نتایج به سال:
The G-protein Gi is known to mediate signal transduction in cells by coupling its 41 kDa alpha-subunit to plasma membrane-bound receptors and inhibiting adenylyl cyclase or affecting ion channel function. Although this G-protein has been functionally associated with D2/dopamine and mu-opioid receptors in striatal membranes, its localization to neurons of the neostriatum, a brain region rich in ...
Previous studies have demonstrated that electrically induced seizures in rat result in an increased brain intracellular sodium which can be decreased by treatment with sodium diphenylhydantoin (DPH). The correlation of cation transport with membrane-oriented sodium-potassium-adenosine triphosphatase (Na-K-ATPase) prompted an investigation of the effect of DPH upon ATPase enzyme activity.Rat cer...
Phosphatidylserine (PS), phosphatidylinositol (PIN) or phosphatidylglycerol (PGL) incubated with synaptosomal plasma membranes (SPM) of dog brain, stimulated adenylate cyclase. The enzyme activity showed a dramatic increase at around 1.6 mumol PS/mg protein, while use of higher concentrations led to inhibition of the activity with respect to the maximal percentage of stimulation. Moreover, PS s...
Alongside rodent brain slices and primary neuronal cultures, synaptosomes (isolated nerve terminals) have been an important model system for studying the molecular mechanisms of synaptic function in the brain. Synaptosomes were first prepared in the late 1950s by Whittaker and colleagues and were instrumental in studying synaptic structure and defining the functional components of the synapse, ...
PKC (protein kinase C) has been known for many years to modulate regulated exocytosis in a wide variety of cell types. In neurons and neuroendocrine cells, PKC regulates several different stages of the exocytotic process, suggesting that these multiple actions of PKC are mediated by phosphorylation of distinct protein targets. In recent years, a variety of exocytotic proteins have been identifi...
Identification of long-lived synaptic proteins by proteomic analysis of synaptosome protein turnover
Syntaxin-1 and 25-kDa Synaptosome-associated Protein (SNAP-25) are present in the plasma membrane of several different secretory cell types and are involved in the exocytosis process. In this work, the free-living amoeba Difflugia corona was studied in relation to ultrastructure, structural membrane proteins, and proteins such as Syntaxin-1 and SNAP-25. Our results obtained by scanning electron...
An animal model of Leber hereditary optic neuropathy (LHON) was produced by introducing the human optic atrophy mtDNA ND6 P25L mutation into the mouse. Mice with this mutation exhibited reduction in retinal function by elecroretinogram (ERG), age-related decline in central smaller caliber optic nerve fibers with sparing of larger peripheral fibers, neuronal accumulation of abnormal mitochondria...
Proteome of synaptosome-associated proteins in spinal cord dorsal horn after peripheral nerve injury
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