نتایج جستجو برای: synaptosome

تعداد نتایج: 328  

Introduction: Synaptosomes are sealed particles that contain mitochondria, cytoskeleton and vesicles which are necessary to synaptic events like neurotransmitter release and uptake in the nervous system. However, the effect of high and low temperatures on synaptosome membrane integrity and function during a time course after its extraction is less known. The purpose of this study was to assess ...

Journal: :Nucleic acids research 2000
I Trounce J Schmiedel H C Yen S Hosseini M D Brown J J Olson D C Wallace

Synaptosome cybrids were used to confirm the presence of heteroplasmic mtDNA sequence variants in the human brain. Synaptosomes contain one to several mitochondria, and when fused to mtDNA-deficient (rho degrees ) mouse or human cell lines result in viable cybrid cell lines. The brain origin of mouse synaptosome cybrid mtDNAs was confirmed using sequence polymorphisms in the mtDNA COIII, ND3 an...

Journal: :Biochemical Society transactions 2010
Phoebe A Rice Kent W Mouw Sherwin P Montaño Martin R Boocock Sally-J Rowland W Marshall Stark

A remarkable feature of the serine resolvases is their regulation: the wild-type enzymes will catalyse intra- but not inter-molecular recombination, can sense the relative orientation of their sites and can exchange strands directionally, despite the fact that there is no net release of chemical bond energy. The key to this regulation is that they are only active within a large intertwined comp...

Journal: :The EMBO journal 2014
Christoph Biesemann Mads Grønborg Elisa Luquet Sven P Wichert Véronique Bernard Simon R Bungers Ben Cooper Frédérique Varoqueaux Liyi Li Jennifer A Byrne Henning Urlaub Olaf Jahn Nils Brose Etienne Herzog

For decades, neuroscientists have used enriched preparations of synaptic particles called synaptosomes to study synapse function. However, the interpretation of corresponding data is problematic as synaptosome preparations contain multiple types of synapses and non-synaptic neuronal and glial contaminants. We established a novel Fluorescence Activated Synaptosome Sorting (FASS) method that subs...

Journal: :physiology and pharmacology 0
ameneh shahroukhi asghar qassemi fereshteh pourabdolhossein ali khoshbaten alireza asgari dept. physiology and biophysics and research center for chemical injuries, baqiyatallah (a.s.)

introduction: compounds which are used to treat organophosphate (op) poisoning are not able to fully alleviate long lasting effects. they are mainly used to antagonize cholinergic effects of ops. however, non-cholinergic effects, such as interference with different neurotransmitter systems, especially gaba release and uptake, are recently attracting more attentions. we have tried to investigate...

Journal: :The Biochemical journal 1967
R M Marchbanks

1. Synaptosomes are pinched-off nerve terminals whose components can be liberated by osmotic ;shock'. A synaptosome preparation run through a Sephadex column that was eluted with an iso-osmotic solution retained its small ions, whereas when the column was eluted hypo-osmotically the small ions were lost. In this way the osmotically sensitive Na(+) and K(+) of synaptosomes were measured. Measure...

Journal: :Journal of lipid research 1973
G Y Sun

Subcellular fractionation of human brain cortex obtained at autopsy yielded microsomal and synaptosome-rich fractions from the gray matter and microsomal and purified myelin fractions from the white matter. The phospholipids of myelin were high in plasmalogens, and the molar ratio of alkenyl acyl sn-glycero-3-phosphorylethanolamine to diacyl sn-glycero-3-phosphorylethanolamine was 4. The acyl g...

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