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Ethanol intake

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https://www.readbyqxmd.com/read/28912059/piracetam-inhibits-ethanol-etoh-induced-memory-deficit-by-mediating-multiple-pathways
#1
Yifan Yang, Jian Feng, Fangyuan Xu, Jianglin Wang
Excessive ethanol (EtOH) intake, especially to prenatal exposure, can significantly affect cognitive function and cause permanent learning and memory injures in children. As a result, how to protect children from EtOH neurotoxicity has gained increasing attention in recent years. Piracetam (Pir) is a nootropic drug derived from c-aminobutyric acid and can manage cognition impairments in multiple neurological disorders. Studies have shown that Pir can exert therapeutic effects on EtOH-induced memory impairments, but the underlying mechanism is still unknown...
September 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28877396/neurotensin-in-the-posterior-thalamic-paraventricular-nucleus-inhibitor-of-pharmacologically-relevant-ethanol-drinking
#2
Surya Pandey, Preeti S Badve, Genevieve R Curtis, Sarah F Leibowitz, Jessica R Barson
Individuals prone to ethanol overconsumption may have preexisting neurochemical disturbances that contribute to their vulnerability. This study examined the paraventricular nucleus of the thalamus (PVT), a limbic structure recently shown to participate in ethanol intake. To identify individuals prone to ethanol overconsumption, we tested Long-Evans rats in behavioral paradigms and found high levels of vertical time (rearing behavior) in a novel activity chamber to be a consistent predictor of subsequent excessive 20 percent ethanol drinking under the intermittent access model...
September 6, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28865912/inhibition-of-ampa-receptor-and-camkii-activity-in-the-lateral-habenula-reduces-depressive-like-behavior-and-alcohol-intake-in-rats
#3
Jing Li, Seungwoo Kang, Rao Fu, Liangzhi Wu, Wei Wu, Hongwei Liu, Danielle Gregor, Wanhong Zuo, Alex Bekker, Jiang-Hong Ye
Depression is a well-known risk factor for developing relapse drinking, but the neuronal mechanisms underlying the interactions between depression and alcohol use disorders remain elusive. Accumulating evidence has associated depression with hyperactivity of the lateral habenula (LHb), an epithalamic structure in the brain that encodes aversive signals. Glutamate receptors contribute substantially to the excitability of LHb neurons. Glutamatergic synapses in LHb neurons largely express GluA1-containing α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPAR) that can be modulated by Ca(2+)/calmodulin-dependent protein II (CaMKII)...
August 31, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28859110/junk-food-diet-induced-obesity-increases-d2-receptor-autoinhibition-in-the-ventral-tegmental-area-and-reduces-ethanol-drinking
#4
Jason B Cook, Linzy M Hendrickson, Grant M Garwood, Kelsey M Toungate, Christina V Nania, Hitoshi Morikawa
Similar to drugs of abuse, the hedonic value of food is mediated, at least in part, by the mesostriatal dopamine (DA) system. Prolonged intake of either high calorie diets or drugs of abuse both lead to a blunting of the DA system. Most studies have focused on DAergic alterations in the striatum, but little is known about the effects of high calorie diets on ventral tegmental area (VTA) DA neurons. Since high calorie diets produce addictive-like DAergic adaptations, it is possible these diets may increase addiction susceptibility...
2017: PloS One
https://www.readbyqxmd.com/read/28858689/ethanol-levels-in-legally-autopsied-subjects-analytical-approach-and-epidemiological-relevance-in-a-prospective-study-in-the-touristic-region-of-the-canary-islands-spain
#5
Maira Almeida-González, Luis A Henríquez-Hernández, Octavio P Luzardo, Manuel Zumbado, Enrique Zaragoza, María J Meilán, María Camacho, Luis D Boada
The aim of this study was to analyze the presence of alcohol in individuals (137) that were subjected to a mandatory medico-legal autopsy in the Institute of Legal Medicine of Las Palmas (Canary Islands, Spain) during 2015. Blood and vitreous humor samples (232) were analyzed by gas chromatography. 46.0% of the individuals were positive for alcohol, being half of them tourists. Blood alcohol concentrations (BAC) was higher in men over 60 years (p = 0.041). 10.2% of the series died in a traffic accident, and victims had the highest proportion of positives to alcohol (64...
August 24, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28842608/a-preclinical-model-for-identifying-rats-at-risk-of-alcohol-use-disorder
#6
Kshitij S Jadhav, Pierre J Magistretti, Olivier Halfon, Marc Augsburger, Benjamin Boutrel
Alcohol use is one of the world's leading causes of death and disease, although only a small proportion of individuals develop persistent alcohol use disorder (AUD). The identification of vulnerable individuals prior to their chronic intoxication remains of highest importance. We propose here to adapt current methodologies for identifying rats at risk of losing control over alcohol intake by modeling diagnostic criteria for AUD: inability to abstain during a signaled period of reward unavailability, increased motivation assessed in a progressive effortful task and persistent alcohol intake despite aversive foot shocks...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28833238/crf1-receptor-dependent-increases-in-irritability-like-behavior-during-abstinence-from-chronic-intermittent-ethanol-vapor-exposure
#7
Adam Kimbrough, Giordano de Guglielmo, Jenni Kononoff, Marsida Kallupi, Eric P Zorrilla, Olivier George
BACKGROUND: In humans, emotional and physical signs of withdrawal from ethanol are commonly seen. Many of these symptoms, including anxiety-like and depression-like behavior, have been characterized in animal models of ethanol dependence. One issue with several current behavioral tests that measure withdrawal in animal models is they are often not repeatable within subjects over time. Additionally, irritability, one of the most common symptoms of ethanol withdrawal in humans, has not been well characterized in animal models...
August 23, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28833225/the-glycine-receptor-a-functionally-important-primary-brain-target-of-ethanol
#8
Bo Söderpalm, Helga HöifödtLidö, Mia Ericson
Identification of ethanol's primary molecular brain targets and determination of their functional importance is an ongoing, important quest. Pentameric ligand-gated ion-channels (pLGIC), i.e. the nicotinic acetylcholine receptor, the γ-aminobutyric acid type A receptor, the 5-hydroxytryptamine3 and the glycine receptor (GlyR) are such targets. Here, aspects of the structure and function of these receptors and ethanol's interaction with them are briefly reviewed, with special emphasis on the GlyR and the importance of this receptor and its ligands for ethanol pharmacology...
August 21, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28827047/high-drinking-in-the-dark-hdid-mice-are-sensitive-to-the-effects-of-some-clinically-relevant-drugs-to-reduce-binge-like-drinking
#9
John C Crabbe, Angela R Ozburn, Pamela Metten, Amanda Barkley-Levenson, Jason P Schlumbohm, Stephanie E Spence, Wyatt R Hack, Lawrence C Huang
BACKGROUND: There is a serious public health need for better understanding of alcohol use disorder disease mechanisms and for improved treatments. At this writing, only three drugs are approved by the Food and Drug Administration as medications to treat alcohol use disorders - disulfiram, naltrexone, and acamprosate. Binge drinking is a form of abusive alcohol drinking defined by the NIAAA as a drinking to blood alcohol levels (BALs)>0.08% during a period of approximately 2h. To model genetic risk for binge-like drinking, we have used selective breeding to create a unique animal model, High Drinking in the Dark (HDID) mice...
September 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28826758/%C3%AE-lactamase-inhibitor-clavulanic-acid-attenuates-ethanol-intake-and-increases-glial-glutamate-transporters-expression-in-alcohol-preferring-rats
#10
Alqassem Y Hakami, Youssef Sari
Studies from our laboratory showed that upregulation of glutamate transporter 1 (GLT-1) and cystine-glutamate exchanger (xCT) expression with ceftriaxone, β-lactam antibiotic, in the brain was associated with attenuation of ethanol consumption. In this study, we tested clavulanic acid, which is another β-lactam compound with negligible antimicrobial activity, on ethanol consumption and expression of GLT-1, xCT and glutamate aspartate transporter (GLAST) in male alcohol-preferring (P) rats. Clavulanic acid has the central β-lactam pharmacophore that is critical for the upregulation of GLT-1 and xCT expression...
August 5, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28822072/cellular-and-molecular-oxidative-stress-related-effects-in-uterine-myometrial-and-trophoblast-decidual-tissues-after-perigestational-alcohol-intake-up-to-early-mouse-organogenesis
#11
Tamara Anahí Coll, Gabriela Chaufan, Leticia Gabriela Pérez-Tito, Martín Ricardo Ventureira, María Del Carmen Ríos de Molina, Elisa Cebral
The placenta plays a major role in embryo-fetal defects and intrauterine growth retardation after maternal alcohol consumption. Our aims were to determine the oxidative status and cellular and molecular oxidative stress effects on uterine myometrium and trophoblast-decidual tissue following perigestational alcohol intake at early organogenesis. CF-1 female mice were administered with 10% alcohol in drinking water for 17 days prior to and up to day 10 of gestation. Control females received ethanol-free water...
August 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28819238/effects-of-environmental-enrichment-upon-ethanol-induced-conditioned-place-preference-and-pre-frontal-bdnf-levels-in-adolescent-and-adult-mice
#12
Ricardo Marcos Pautassi, Andrea B Suárez, Lucas Barbosa Hoffmann, André Veloso Rueda, Mariana Rae, Priscila Marianno, Rosana Camarini
Environmental enrichment (EE) provides a non-pharmacological tool to alter drug-induced reward, yet its effects on ethanol-induced reward remain controversial. We analyzed adolescent vs. adult (mice) differences in the influence of EE on ethanol-induced conditioned place preference (CPP). The effects of these treatments on brain-derived neurotrophic factor (BDNF) levels in the prefrontal cortex were examined in a separate group of animals. Ethanol-induced CPP was found in adults, and it was similar in EE and in animals reared under standard housing conditions (SC)...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810607/effects-of-low-dose-of-ethanol-on-the-senescence-score-brain-function-and-gene-expression-in-senescence-accelerated-mice-8-samp8
#13
Akiko Kimoto, Hanae Izu, Churan Fu, Sofya Suidasari, Norihisa Kato
Accumulating epidemiological evidence suggests light to moderate alcohol intake reduces risk of several chronic diseases. However, there is limited information regarding the effects of low alcohol intake in animal studies. This study investigated the effect of low ethanol dosage on senescence-accelerated mouse (SAMP8), an animal model of aging and neurodegenaration. Male SAMP8 mice (11 weeks old) had free access to a commercial stock diet with drinking water containing 0, 1 or 2% (v/v) ethanol for 15 weeks...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807676/crf-modulates-glutamate-transmission-in-the-central-amygdala-of-na%C3%A3-ve-and-ethanol-dependent-rats
#14
Florence P Varodayan, Diego Correia, Dean Kirson, Sophia Khom, Christopher S Oleata, George Luu, Paul Schweitzer, Marisa Roberto
Corticotropin-releasing factor (CRF) signaling in the central nucleus of the amygdala (CeA) is hypothesized to drive the development of alcohol dependence, as it regulates ethanol intake and several anxiogenic behaviors linked to withdrawal. Excitatory glutamatergic neurotransmission contributes to alcohol reinforcement, tolerance and dependence. Therefore, in this study we used in vitro slice electrophysiology to investigate the effects of CRF and its receptor subtype (CRF1 and CRF2) antagonists on both evoked and spontaneous action potential-independent glutamatergic transmission in the CeA of naive and ethanol-dependent Sprague-Dawley rats...
October 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28803118/complex-interactions-between-the-subject-factors-of-biological-sex-and-prior-histories-of-binge-drinking-and-unpredictable-stress-influence-behavioral-sensitivity-to-alcohol-and-alcohol-intake
#15
Sema G Quadir, Eugenie Guzelian, Mason A Palmer, Douglas L Martin, Jennifer Kim, Karen K Szumlinski
Alcohol use disorders, affective disorders and their comorbidity are sexually dimorphic in humans. However, it is difficult to disentangle the interactions between subject factors influencing alcohol sensitivity in studies of humans. Herein, we combined murine models of unpredictable, chronic, mild stress (UCMS) and voluntary binge-drinking to examine for sex differences in the interactions between prior histories of excessive ethanol-drinking and stress upon ethanol-induced changes in motor behavior and subsequent drinking...
August 9, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28802901/effect-of-vertical-sleeve-gastrectomy-on-alcohol-consumption-and-preferences-in-dietary-obese-rats-and-mice-a-plausible-role-for-altered-ghrelin-signaling
#16
Elise R Orellana, Catherine Jamis, Nelli Horvath, Andras Hajnal
Vertical sleeve gastrectomy (VSG) and Roux-en-Y gastric bypass (RYGB) are the most common surgical options for the treatment of obesity and metabolic disorder. Whereas RYGB may result in greater and more durable weight loss, recent clinical and pre-clinical studies in rats have raised concerns that RYGB surgery may increase risk for alcohol use disorder (AUD). In contrast, recent clinical reports suggest a lesser risk for AUD following VSG, although no preclinical studies have been done to confirm that. Therefore, the present study sought to determine the effects of VSG on ethanol intake and preferences in rodent models using protocols similar to those previously used in animal studies for RYGB...
August 9, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28802889/ameliorative-effect-of-propolis-supplementation-on-alleviating-bisphenol-a-toxicity-growth-performance-biochemical-variables-and-oxidative-stress-biomarkers-of-nile-tilapia-oreochromis-niloticus-l-fingerlings
#17
Heba S Hamed, Mohsen Abdel-Tawwab
Bisphenol-A (BPA) is one of the important pollutants in aquatic ecosystems and its detrimental effect on fish has a great concern. Propolis is a natural immune-stimulant that has various biological and pharmacological activities. Thus, its capability to alleviate the toxic effect of BPA on Nile tilapia, Oreochromis niloticus (L.) performance was assessed in a study based on a 2×2 factorial design with two levels of ethanolic extract of propolis (EEP) and two waterborne BPA concentrations in triplicates. Fish (33...
August 9, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28802209/commentary-on-current-changes-of-the-soht-2016-consensus-on-alcohol-markers-in-hair-and-further-background-information
#18
Fritz Pragst, Silke Suesse, Alberto Salomone, Marco Vincenti, Vincent Cirimele, Jayne Hazon, Lolita Tsanaclis, Robert Kingston, Frank Sporkert, Markus R Baumgartner
The consensus on alcohol markers in hair was revised for the fourth time by an expert group of the Society of Hair Testing based on current state of research. This revision was adopted by the members of the Society during the business meeting in Brisbane on August 29th 2016. For both markers, ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs), two cut-off values for discrimination between teetotalers or occasional low amount consumption and moderate alcohol drinking (low cut-off), and between non-excessive (abstinence up to moderate alcohol intake) and chronic excessive drinking (high cut-off value) were critically examined...
September 2017: Forensic Science International
https://www.readbyqxmd.com/read/28800414/global-distribution-of-perfluorochemicals-pfcs-in-potential-human-exposure-source-a-review
#19
REVIEW
Jun-Meng Jian, Ying Guo, Lixi Zeng, Liu Liang-Ying, Xingwen Lu, Fei Wang, Eddy Y Zeng
Human exposure to perfluorochemicals (PFCs) has attracted mounting attention due to their potential harmful effects. Breathing, dietary intake, and drinking are believed to be the main routes for PFC entering into human body. Thus, we profiled PFC compositions and concentrations in indoor air and dust, food, and drinking water with detailed analysis of literature data published after 2010. Concentrations of PFCs in air and dust samples collected from home, office, and vehicle were outlined. The results showed that neutral PFCs (e...
August 8, 2017: Environment International
https://www.readbyqxmd.com/read/28800153/increased-autolysis-of-%C3%AE-calpain-in-skeletal-muscles-of-chronic-alcohol-fed-rats
#20
Yulia V Gritsyna, Nikolay N Salmov, Alexander G Bobylev, Anna D Ulanova, Nikolay I Kukushkin, Zoya A Podlubnaya, Ivan M Vikhlyantsev
BACKGROUND: Proteolysis can proceed via several distinct pathways such as the lysosomal, calcium-dependent, and ubiquitin (Ub)-proteasome-dependent pathways. Calpains are the main proteases that cleave a large variety of proteins, including the giant sarcomeric proteins titin and nebulin. Chronic ethanol feeding for 6 weeks did not affect the activities of μ-calpain and m-calpain in the m. gastrocnemius. In our research, changes in μ-calpain activity were studied in the m. gastrocnemius and m...
August 11, 2017: Alcoholism, Clinical and Experimental Research
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