Abstract:
:This study investigated the effects of chronic ethanol intake on hepatic haemodynamics and reticuloendothelial system function in the rat. Comparisons were also made with blood flow to pancreas, kidney, spleen, lung and skin. Male Wistar rats, approximately 0.15 kg initial body weight, were fed a diet containing 35% of the total calories as ethanol. Controls were pair-fed identical amounts of the same diet in which ethanol was replaced by isocaloric glucose. The hepatic perfusion index and reticuloendothelial function was determined with [(99m) Tc]-labelled sulphur colloid [(99m) Tc]-SC) and blood flow with radiolabelled microspheres under anaesthesia. After 4-5 weeks the weights of liver and skin of alcohol fed rats decreased by 10% (p= 0.040) and 23% (p= 0.024), respectively, compared to controls and there was a small increase in kidney weight (15%, p = 0.001). Blood flow to liver, pancreas, kidney, spleen, lung and skin was not altered significantly by chronic alcohol administration, irrespective of whether the data were expressed as a percentage of cardiac output, blood flow per minute per organ or blood flow per minute per g tissue weight (p > 0.113 in all instances). However, there was a significant increase in splenic reticuloendothelial system activity (+ 121%, p = 0.018). Hepatic reticuloendothelial system activity was also increased (+ 22%, p = 0.061). Chronic alcohol administration resulted in significant increases in portal pressure (+ 55%, p = 0.042) and portal venous resistance (+ 66%, p = 0.001), but portal venous inflow and hepatic perfusion index were not altered compared to controls The results of this study indicated that chronic alcohol administration did not alter visceral blood flow significantly, but did increase portal pressure, portal vascular resistance and reticuloendothelial system activity.
journal_name
Addict Bioljournal_title
Addiction biologyauthors
Preedy VR,Nott DM,Yates J,Venkatesan S,Jenkins SA,Peters TJdoi
10.1080/13556219772507subject
Has Abstractpub_date
1997-10-01 00:00:00pages
445-54issue
4eissn
1355-6215issn
1369-1600journal_volume
2pub_type
杂志文章abstract::Combined anorectic-alcohol misuse is a prevalent problem in Brazil. In order to understand better the interactive effects of ethanol (EtOH) and mazindol (MZ), we examined the effects of EtOH (1.2 g/kg) and MZ (5.0 mg/kg) given alone or in combination, on mouse behaviour. The results indicate that EtOH plus MZ induces ...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1080/1355621961000124926
更新日期:1996-01-01 00:00:00
abstract::Chronic exposure to alcohol and other drugs of abuse has been associated with deleterious consequences, including functional connectivity deficits within neural networks associated with executive control. Altered functional connectivity within the executive control network (ECN) might underlie the progressive inabilit...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12684
更新日期:2020-01-01 00:00:00
abstract::Drug addiction is a chronic and relapsing brain disorder, influenced by complex interactions between endogenous and exogenous factors. Per2, a circadian gene, plays a role in drug addiction. Previous studies using Per2-knockout mice have shown a role for Per2 in cocaine, morphine and alcohol addiction. In the present ...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12663
更新日期:2019-09-01 00:00:00
abstract::Abstract Methamphetamine (METH)-induced dopaminergic neurotoxicity is thought to be associated with the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS). Recently, we have reported that copper/zinc(CuZn)-superoxide dismutase transgenic mice are resistant to METH-induced neurotoxicity. In...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2000.tb00200.x
更新日期:2000-07-01 00:00:00
abstract::Nicotine self-administration is associated with decreased expression of the glial glutamate transporter (GLT-1) and the cystine-glutamate exchange protein xCT within the nucleus accumbens core (NAcore). N-acetylcysteine (NAC) has been shown to restore these proteins in a rodent model of drug addiction and relapse. How...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12797
更新日期:2020-09-01 00:00:00
abstract::The aim of this study was to profile and compare blood naltrexone and 6-beta-naltrexol levels with time following treatment with two sustained-release naltrexone preparations produced by GoMedical Industries, Australia at a community heroin treatment clinic in Perth, Western Australia. A sample of 10 patients who each...
journal_title:Addiction biology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1080/13556210410001674103
更新日期:2004-03-01 00:00:00
abstract::The controversy over the relationship between heroin addiction and hepatocellular dysfunction was examined by assay of serum activities of aspartate and alanine aminotransferases, total protein, albumin and globulin in 48 chronic heroin smokers and 33 controls. Biliary secretion in the addicts was compared to controls...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1080/1355621961000124826
更新日期:1996-01-01 00:00:00
abstract::The mammalian target of rapamycin (mTOR) is a serine-threonine kinase that controls global protein synthesis, in part, by modulating translation initiation, a rate-limiting step for many mRNAs. Previous studies implicate mTOR in regulating stimulant-induced sensitization and antidepressive-like behavior in rodents, as...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2010.00311.x
更新日期:2012-03-01 00:00:00
abstract::The aim of this study was to observe the effect of electroacupuncture (EA) on chronic morphine-induced neuronal morphological changes in the ventral tegmental area (VTA) in rats at electron-microscopic level. Fourteen days of administering escalating doses of morphine induced pathological morphological changes of neur...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2007.00092.x
更新日期:2008-03-01 00:00:00
abstract::Recreational use of the drug 4-methylmethcathinone (mephedrone; 4-MMC) became increasingly popular in the United Kingdom in recent years, spurred in part by the fact that it was not criminalized until April 2010. Although several fatalities have been associated with consumption of 4-MMC and cautions for recreational u...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12038
更新日期:2013-09-01 00:00:00
abstract::This study employs an oral operant conditioning paradigm to evaluate the effects of repeated social defeat during adolescence on the reinforcing and motivational actions of ethanol in adult OF1 mice. Social interaction, emotional and cognitive behavioral aspects were also analyzed, and real-time polymerase chain react...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12184
更新日期:2016-01-01 00:00:00
abstract::Cannabinoid type 1 (CB1) receptors control the motivational properties and reinforcing effects of nicotine. Indeed, peripheral administration of a CB1 receptor antagonist dramatically decreases both nicotine taking and seeking. However, the neural substrates through which the cannabinoid CB1 receptors regulate the vol...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2012.00476.x
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND AND AIMS:Baclofen, a selective γ-aminobutyric acid (GABA)B receptor agonist, has emerged as a potential treatment for alcohol use disorder with much unexplained variation in response to treatment efficacy and dose regimen. Several positive studies include patients with alcoholic liver disease (ALD) and/or hi...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12702
更新日期:2020-01-01 00:00:00
abstract::Addiction is characterized by a persistent loss of behavioral control resulting in insensitivity to negative feedback and abnormal decision-making. Here, we investigated the influence of methamphetamine (METH)-paired contextual cues on decision-making in rats. Choice between goal-directed actions was sensitive to outc...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12316
更新日期:2017-01-01 00:00:00
abstract::Previous research in rodents suggests that the long-term neurobehavioral disturbances induced by chronic ethanol (EtOH) exposure could be due to endocannabinoid system (ECS) alterations. Moreover, ECS failure has been proposed to mediate the cognitive impairment and β-amyloid production in Alzheimer disease (AD). Thus...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12883
更新日期:2021-01-01 00:00:00
abstract::Cocaine addiction has been associated with increased sensitivity of the human reward circuit to drug-related stimuli. However, the capacity of non-drug incentives to engage this network is poorly understood. Here, we characterized the functional sensitivity to monetary incentives and the structural integrity of the hu...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12356
更新日期:2017-05-01 00:00:00
abstract::In light of the upcoming eleventh edition of the International Classification of Diseases (ICD-11), the question arises as to the most appropriate classification of 'Pathological Gambling' ('PG'). Some academic opinion favors leaving PG in the 'Impulse Control Disorder' ('ICD') category, as in ICD-10, whereas others a...
journal_title:Addiction biology
pub_type: 杂志文章,评审
doi:10.1111/adb.12378
更新日期:2017-07-01 00:00:00
abstract::Recent preclinical evidence indicates that the neuropeptide oxytocin may have potential in the treatment of drug dependence and drug withdrawal. Oxytocin reduces methamphetamine self-administration, conditioned place preference and hyperactivity in rodents. However, it is unclear how oxytocin acts in the brain to prod...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2010.00247.x
更新日期:2010-10-01 00:00:00
abstract::Previous studies on acetaldehyde dehydrogenase 2 (ALDH2) focused on drinking behavior or alcoholism because the ALDH2*2 allele protects against the risk of developing alcoholism. The mechanism provides that the ALDH2 gene's protective effect is also involved in dopamine metabolism. The interaction of the ALDH2 gene wi...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2010.00268.x
更新日期:2012-09-01 00:00:00
abstract::Nicotine exerts its rewarding effects by promoting an increase in dopamine (DA) release in the nucleus accumbens (NAc), and this process is influenced by the endocannabinoid system. Fatty acid amide hydrolase (FAAH) is the main enzyme responsible for the degradation of the endocannabinoid anandamide and other non-cann...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12531
更新日期:2018-03-01 00:00:00
abstract::Chemical compounds that target dopamine (DA) D1 or D3 receptors have shown promise as potential interventions in animal models of cue-induced relapse. However, undesirable side effects or pharmacodynamic profiles have limited the advancement of new compounds in preclinical studies when administered as independent trea...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12988
更新日期:2021-01-25 00:00:00
abstract::The rate of acetaldehyde metabolism was measured in aortic rings from rat strains genetically bred for high (UChB) and low (UChA) voluntary ethanol consumption. The results show that in aortic rings from naive UChB rats, acetaldehyde oxidation rates were significantly greater than the rates observed in aortic rings fr...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1080/13556219971849
更新日期:1999-01-01 00:00:00
abstract::The capacity of the liver to synthesize insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) may be compromised by alcohol. The characteristics of IGFBP-3 variants obtained from healthy individuals and patients with alcoholic cirrhosis (ALC) were compared. Concanavalin A (Con A) affinity electrophore...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1080/1355621031000069927
更新日期:2003-03-01 00:00:00
abstract::Intravenous drug addiction is known to be associated with an inordinate morbidity and mortality. As our previous report had identified an immune phenotype consistent with accelerated ageing, we wished to investigate how much of this change may have been related to chronic viral hepatitis. A total of 12 409 clinical pa...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2008.00123.x
更新日期:2009-04-01 00:00:00
abstract::Frustration represents a particular aspect of the addictive process that is related to loss of control when the expected reward is not obtained. We aim to study the consequences of frustrated expected reward on gene expression in the mouse brain. For this purpose, we used an operant model of frustration using palatabl...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12188
更新日期:2015-01-01 00:00:00
abstract::The posterior hippocampus (pHp) plays a major role in the processing and storage of drug-related cues and is linked to striatal-limbic brain circuits involved with craving and drug salience. We have recently reported that increased basal regional cerebral blood flow (rCBF) in a pHp loci, as measured by pseudo-continuo...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12361
更新日期:2017-05-01 00:00:00
abstract::The α1 -adrenergic antagonist, doxazosin, has improved cocaine use disorder (CUD) presumably by blocking norepinephrine (NE) stimulation and reward from cocaine-induced NE increases. If the NE levels for release were lower, then doxazosin might more readily block this NE stimulation and be more effective. The NE avail...
journal_title:Addiction biology
pub_type: 杂志文章,随机对照试验
doi:10.1111/adb.12611
更新日期:2019-05-01 00:00:00
abstract::The purpose of this study was to evaluate the effects of naltrexone (0.7 mg/kg) and/or topiramate (25 mg/kg) on ethanol consumption and the motivation to drink in an oral-operant conditioning paradigm in C57BL/6 mice. Subsequent real-time polymerase chain reaction (PCR) experiments were performed to analyze gene expre...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12058
更新日期:2014-09-01 00:00:00
abstract::Withdrawal from extended-access cocaine self-administration leads to progressive intensification ('incubation') of cocaine craving. After prolonged withdrawal (1-2 months), when craving is high, expression of incubation depends on strengthening of excitatory inputs to medium spiny neurons (MSN) of the nucleus accumben...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/adb.12430
更新日期:2017-11-01 00:00:00
abstract::Smoking-related cues elicit craving and mesocorticolimbic brain activation in smokers. Severity of nicotine dependence seems to moderate cue reactivity, but the direction and mechanisms of its influence remains unclear. Although tobacco control policies demand a ban on tobacco advertising, cue reactivity studies in sm...
journal_title:Addiction biology
pub_type: 杂志文章
doi:10.1111/j.1369-1600.2010.00207.x
更新日期:2011-01-01 00:00:00