Abstract:
:Increased benzodiazepine (BZ) receptor density has been reported in brains of rabbits with hepatic encephalopathy (HE) due to galactosamine (GalN)-induced fulminant hepatic failure (FHF). These data were generated using detergent-Triton X-100-treated neural membranes. While performing further studies it was noted that the increase in BZ receptor density was not demonstrable when Triton X-100 preparation was not employed. Accordingly the binding of [3H] flunitrazepam, a BZ ligand, to neural membranes from cortices of normal rabbits and rabbits with HE due to (GalN)-induced FHF was studied with and without detergent preparation. Scatchard plot analysis of the binding data indicated that when no detergent was employed, the apparent affinity and density of BZ receptors were similar for control membranes and membranes from animals in HE. BZ receptors from animals in HE were shown to be more resistant to solubilization by Triton than control membranes. These findings (a) afford a potential explanation for the apparent increase in density of BZ receptors in this model when Triton treatment of neural membranes is utilized and (b) suggest that recent evidence for increased GABAergic tone in the syndrome of HE is not dependent on an increased density of BZ receptors.
journal_name
Metab Brain Disjournal_title
Metabolic brain diseaseauthors
Rössle M,Mullen KD,Jones EAdoi
10.1007/BF01000296subject
Has Abstractpub_date
1989-09-01 00:00:00pages
203-12issue
3eissn
0885-7490issn
1573-7365journal_volume
4pub_type
杂志文章abstract::The present experiments were conducted to investigate the direct effects of ethanol on the energy metabolism of astrocytes and C6-glioma cells. Primary astrocytes were prepared from cerebral cortices of neonatal rats, and C6-glioma cells were purchased from American Type Culture Collection (ATCC). These cells were exp...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1023/a:1020606607729
更新日期:1999-09-01 00:00:00
abstract::Traumatic brain injury (TBI) is accompanied with enhanced matrix metalloproteinase-9 (MMP-9) activity and elevated levels of plasma fibrinogen (Fg), which is a known inflammatory agent. Activation of MMP-9 and increase in blood content of Fg (i.e. hyperfibrinogenemia, HFg) both contribute to cerebrovascular disorders ...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-014-9550-3
更新日期:2015-04-01 00:00:00
abstract::It has been suggested that alterations of GABAergic neurotransmission are implicated in the pathophysiology of hepatic encephalopathy (HE). Increased concentrations of endogenous benzodiazepines with positive allosteric modulatory properties at the GABA-A receptor complex were proposed as a pathophysiological mechanis...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1023/b:mebr.0000043974.89820.22
更新日期:2004-12-01 00:00:00
abstract::This study presents further research into the spectrum of variants in genes responsible for the development of phenylketonuria (PKU) and hyperphenylalaninemia (HPA) in patients in Russia. After a study of 25 frequent variants, 293 patients (327 chromosomes without detected variants) from among 1265 probands still had ...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-019-00461-w
更新日期:2019-12-01 00:00:00
abstract::There is substantial clinical and experimental evidence that ammonia is a major factor in the pathogenesis of hepatic encephalopathy. In the article is demonstrated that in hepatocellular dysfunction, ammonia detoxification to glutamine (GLN) in skeletal muscle, brain, and likely the lungs, is activated. In addition t...
journal_title:Metabolic brain disease
pub_type: 杂志文章,评审
doi:10.1007/s11011-013-9428-9
更新日期:2014-03-01 00:00:00
abstract::Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system which causes chronic demyelination. Hydroxychloroquine (HCQ) possess immunosuppressive and anti-inflammatory properties. The aim of this study was to investigate the effect of HCQ on miR-219 and miR-155-3p expression changes in MS-...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-020-00609-z
更新日期:2020-12-01 00:00:00
abstract::Although gaseous ammonia (NH3) can freely enter cells through the plasma membrane where NH3 is cyto(neuro)toxic, NH3 and ionic ammonia (NH4+) contents have not been studied in biological materials. We developed a new method for measurement of expiratory NH3 concentration, which may reflect blood NH3 concentrations. Th...
journal_title:Metabolic brain disease
pub_type: 临床试验,杂志文章
doi:
更新日期:1997-06-01 00:00:00
abstract::Sepsis is a major clinical challenge that is associated with encephalopathy and multi-organ dysfunction. Current therapeutic interventions are relatively ineffective and the development of novel treatments is hampered by the lack of a well-characterised animal model. Therefore, the behavioural, metabolic, physiologica...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-007-9058-1
更新日期:2007-12-01 00:00:00
abstract::Semi-chronic exposure of ICR male Mice to Aflatoxin B1 (AFB1) in non-toxic doses decreased brain serotonin (5-hydroxytryptamine, 5-HT), 5-hydroxyindole-3-acetic acid (5-HIAA) and catecholamines without altering tryptophan (TRP) or tyrosine (TYR) levels. A TRP load (300 mg/kg, i.p. x 2 hours) slightly increased brain T...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/BF01000244
更新日期:1992-12-01 00:00:00
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journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/BF00996894
更新日期:1993-06-01 00:00:00
abstract::Brain glucose uptake is usually reduced in type 2 diabetes owing to downregulation of brain glucose transporters. The ability of Vernonia amygdalina to stimulate glucose uptake as well as ameliorate glucose-induced oxidative stress and proinflammation were investigated in rat brain. Hot infusion of V. amygdalina leave...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-018-0363-7
更新日期:2019-06-01 00:00:00
abstract::Thiamine triphosphate (ThTP) was discovered over 60 years ago and it was long thought to be a specifically neuroactive compound. Its presence in most cell types, from bacteria to mammals, would suggest a more general role but this remains undefined. In contrast to thiamine diphosphate (ThDP), ThTP is not a coenzyme. I...
journal_title:Metabolic brain disease
pub_type: 杂志文章,评审
doi:10.1007/s11011-014-9509-4
更新日期:2014-12-01 00:00:00
abstract::While risk factors for konzo are known, determinants of cognitive impairment in konzo-affected children remain unknown. We anchored cognitive performance (KABC-II scores) to serum levels of free-thyroxine (free-T4), thyroid-stimulating hormone (TSH), albumin, and motor proficiency (BOT-2 scores) in 40 children includi...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-014-9492-9
更新日期:2014-06-01 00:00:00
abstract::The effects of chronic and repeated radiofrequency electromagnetic radiation (RFEMR) exposure on spatial cognition and hippocampal architecture were investigated in prepubescent rats. Four weeks old male Wistar rats were exposed to RF-EMR (900 MHz; SAR-1.15 W/kg with peak power density of 146.60 μW/cm(2)) for 1 h/day,...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-015-9689-6
更新日期:2015-10-01 00:00:00
abstract::Mutations in NADH dehydrogenase (ND) subunits of complex I lead to mitochondrial encephalomyopathies associated with various phenotypes. This report aims to present the patient's clinical symptomatology in the context of a very rare 13042G>A de novo mutation and with an emphasis on changing phenotypic expression and p...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-014-9645-x
更新日期:2015-08-01 00:00:00
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journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-014-9503-x
更新日期:2014-06-01 00:00:00
abstract::Schizophrenia is one of the most disabling mental disorders that affects up to 1 % of the population worldwide. Although the causes of this disorder remain unknown, it has been extensively characterized by a broad range of emotional, ideational and cognitive impairments. Studies indicate that schizophrenia affects neu...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-013-9417-z
更新日期:2013-09-01 00:00:00
abstract::The present study analyses the potential role of MTHFR gene polymorphism, folate supplementation and dietary pattern among the mothers of NTD neonates and controls in heterogeneous populations of North India, with the special focus on their ethnic labels. Results indicated significant increased risk for neural tube de...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-011-9256-8
更新日期:2011-09-01 00:00:00
abstract::Despite the existence of many preclinical studies, scientific evidence is lacking on the clinical use of alpha-lipoic acid (ALA) for central nervous system disorders. Therefore, we aimed at revising the literature concerning the use of ALA for the treatment of psychiatric and neurological conditions and to point out w...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-018-0344-x
更新日期:2019-02-01 00:00:00
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journal_title:Metabolic brain disease
pub_type: 杂志文章,评审
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journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1023/a:1011167023695
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journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-014-9515-6
更新日期:2015-04-01 00:00:00
abstract::The blood-brain barrier and the intestinal barrier show signs of disruption in patients with idiopathic Parkinson's disease (PD) and animal models of nigrostriatal degeneration, and likewise in amyotrophic lateral sclerosis (ALS) models. A substantial body of evidence shows that defects in epithelial membrane barriers...
journal_title:Metabolic brain disease
pub_type: 杂志文章,评审
doi:10.1007/s11011-018-0239-x
更新日期:2018-08-01 00:00:00
abstract::Studies have shown that oxidative stress is involved in the pathophysiology of bipolar disorder (BD). It is suggested that omega-3 (ω3) fatty acids are fundamental to maintaining the functional integrity of the central nervous system. The animal model used in this study displayed fenproporex-induced hyperactivity, a s...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-016-9942-7
更新日期:2017-04-01 00:00:00
abstract::Overwhelming evidence suggests that microglia play an important role in ischemic injury and they polarize into two different phenotypes with distinct functions after ischemic stroke. We performed the present study to investigate whether L-3-n butylphthalide (NBP) has an effect on microglial polarization. Mice were sub...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-018-0307-2
更新日期:2018-12-01 00:00:00
abstract::We investigated the effects of age and nitric oxide synthase inhibitor, NG-nitro-L-arginine methyl ester (L-NAME), on protein kinase C (PKC), adenylyl cyclase, calcium/calmodulin-independent cyclic-AMP phosphodiesterase (cyclic-AMP PDE) and voltage-dependent L-type calcium channels in Fischer rat brain using autoradio...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/BF02676356
更新日期:1997-03-01 00:00:00
abstract::Effects of sertraline, haloperidol or olanzapine administration on ketamine-induced behaviours in mice were examined. The aim was to ascertain the degree of reversal of such behaviours by sertraline, and compare its effectiveness to haloperidol and olanzapine. Ten-week old mice (N = 120) were equally divided into main...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-017-0031-3
更新日期:2017-10-01 00:00:00
abstract::Rare metabolic diseases may sometimes arise acutely and endanger human life if not immediately recognized and treated. Marchiafava Bignami disease is an uncommon neurologic disorder described in alcohol abusers and characterized by an acute severe damage of brain white matter. Even more rarely, it has been reported in...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-016-9893-z
更新日期:2017-02-01 00:00:00
abstract::In the current era, plants are frequently tested for its antidepressant potential. Therefore young coconut water, a commonly used plant based beverage, was selected to explore its antidepressant potential. Rodents were selected for this study and forced swim test was conducted to explore antidepressant activity. Analy...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-016-9866-2
更新日期:2016-10-01 00:00:00
abstract::Cyclic AMP is part of an endogenous mechanism that downregulates inflammatory response, and its intracellular concentration is regulated chiefly by cyclic nucleotide phosphodiesterases type 4. The goal of the present study was to determine whether phosphodiesterases 4 are involved in the inflammatory response of astro...
journal_title:Metabolic brain disease
pub_type: 杂志文章
doi:10.1007/s11011-009-9150-9
更新日期:2009-09-01 00:00:00