Abstract:
:ESR spin trapping technique was used to detect and analyze free radical formation. When 6-hydroxydopamine (6-OHDA) was incubated alone or in the presence of a free radical generating system (H2O2 and FeSO4), hydroxyl free radicals were observed in a concentration-dependent manner. Glutathione was found to be the most effective scavenger of the ESR signal when compared with vitamin E or Mannitol. The addition of ethanol resulted in the formation of the pure hydroxyethyl free radicals. The amount of hydroxyethyl free radicals in the system was dependent upon the concentration of ethanol and the formation of hydroxyethyl free radicals correlated well with the extent of lipid peroxidation and the loss of enzymic activity of the membrane-bound (Na+,K+)-ATPase. We suggest that in the biological system ethanol may potentiate the neurotoxicity of 6-OHDA with the formation of hydroxyethyl free radicals, which are longer-lived and far more damaging to membranes than the hydroxyl radicals. These data lead us to further hypothesize that the neuronal degeneration caused by 6-OHDA and other compounds that generate free radicals could be potentiated in the presence of ethanol.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Oldfield FF,Cowan DL,Sun AYdoi
10.1007/BF00965833keywords:
subject
Has Abstractpub_date
1991-01-01 00:00:00pages
83-7issue
1eissn
0364-3190issn
1573-6903journal_volume
16pub_type
杂志文章abstract::Amphiphile dependency, solubility in aqueous solutions, and sensitivity to proteolysis of acetylcholinesterase (AChE) and nonspecific cholinesterase (nsChE) in the rat superior cervical ganglion were studied and compared to properties of soluble plasma cholinesterases. Ganglion AChE shows strong amphiphile dependency:...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964537
更新日期:1985-06-01 00:00:00
abstract::Any spinal cord injury carries the potential for persistent disability affecting motor, sensory and autonomic functions. To prevent this outcome, it is highly desirable to block a chain of deleterious reactions developing in the spinal areas immediately around the primary lesion. Thus, early timing of pharmacological ...
journal_title:Neurochemical research
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journal_title:Neurochemical research
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00988601
更新日期:1985-12-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章,评审
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更新日期:2004-03-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:
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pub_type: 杂志文章
doi:10.1007/s11064-012-0867-1
更新日期:2012-12-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964802
更新日期:1984-08-01 00:00:00
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更新日期:2008-11-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964513
更新日期:1984-05-01 00:00:00
abstract::Chronic thiamine deprivation in the rat leads to ataxia, loss of righting reflex and neuropathological damage to lateral vestibular nucleus. Before onset of neurological symptoms, transketolase (TK) activities were found to be selectively reduced by 25% in lateral vestibular nucleus and surrounding pons. Further progr...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00972141
更新日期:1987-03-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00964696
更新日期:1983-05-01 00:00:00
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pub_type: 杂志文章
doi:10.1023/b:nere.0000023610.89631.d6
更新日期:2004-06-01 00:00:00
abstract::Numerous studies have demonstrated that the Acetyl Coenzyme A-dependent arylamine NAT enzyme exist in many tissues of experimental animals including humans, and that NAT has been shown to be exist in mouse brain tissue. Increased NAT activity levels are associated with increased sensitivity to the mutagenic effects of...
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doi:10.1023/a:1007632326953
更新日期:2000-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:1999-07-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-005-6787-6
更新日期:2005-08-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00965929
更新日期:1989-10-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1022413718447
更新日期:1998-03-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2007-04-01 00:00:00
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journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1023/a:1021073230464
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journal_title:Neurochemical research
pub_type: 杂志文章
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更新日期:1987-08-01 00:00:00
abstract::Ménière's disease (MD) is characterized by the triad of fluctuating hearing loss, episodic vertigo and tinnitus, and by endolymphatic hydrops found on post-mortem examination. Increasing evidence suggests that oxidative stress is involved in the development of endolymphatic hydrops and that cellular damage and apoptot...
journal_title:Neurochemical research
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doi:10.1007/s11064-010-0304-2
更新日期:2010-12-01 00:00:00
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journal_title:Neurochemical research
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更新日期:2013-12-01 00:00:00
abstract::Synaptosomes isolated from mouse brain were incubated with [14C]glutamate and [3H]gamma-amino-butyric acid ([3H]GABA), and then [14C]GABA (newly synthesized GABA) and [3H]GABA (newly captured GABA) in the synaptosomes were analysed. (1) the [3H]GABA was rapidly degraded in the synaptosomes, (2) when the synaptosomes w...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/BF00968675
更新日期:1990-03-01 00:00:00
abstract::Lewy bodies and Lewy neurites in the brain constitute the main histopathological features of Parkinson's disease (PD) and dementia with Lewy bodies. They comprise amyloid-like fibrils composed of α-synuclein (αS), a small protein (~14 kDa). Because the aggregation of αS in the brain has been implicated as a critical s...
journal_title:Neurochemical research
pub_type: 杂志文章,评审
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更新日期:2017-12-01 00:00:00
abstract::Ethyl pyruvate (EP) has recently been reported to afford protection against neurodegenerative disorders. However, the mechanism underlying EP-mediated neuroprotection remains to be elucidated. Because peroxynitrite has been extensively implicated in the pathogenesis of various forms of neurodegenerative disorders via ...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-009-0059-9
更新日期:2010-02-01 00:00:00
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更新日期:2013-03-01 00:00:00
abstract::Paclitaxel (PTX) is an antineoplastic agent commonly used in the treatment of solid tumors and is known to cause dose-limiting peripheral neurotoxicity. This study was performed to evaluate the protective effect of curcumin (CUR) against PTX-induced spinal cord and sciatic nerve injuries in rats. The rats were adminis...
journal_title:Neurochemical research
pub_type: 杂志文章
doi:10.1007/s11064-020-03174-0
更新日期:2020-11-17 00:00:00