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Ethanol intake

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https://www.readbyqxmd.com/read/28213240/sensitive-and-precise-monitoring-of-phosphatidylethanol-in-human-blood-as-a-biomarker-for-alcohol-intake-by-ultrasound-assisted-dispersive-liquid-liquid-microextraction-combined-with-liquid-chromatography-tandem-mass-spectrometry
#1
Siming Wang, Ruiyue Yang, Fusui Ji, Hongxia Li, Jun Dong, Wenxiang Chen
Phosphatidylethanol (PEth) is a special phospholipid that is only formed in the presence of ethanol, and therefore, serves as a promising biomarker for alcohol intake. In this study, a simple, rapid and precise method based on LC-MS/MS combined with ultrasound-assisted dispersive liquid-liquid microextraction was developed and validated for the measurements of PEth (16:0/18:1, 16:0/18:2, 16:0/16:0, and 18:1/18:1) in human blood. The influences of several variables for sample extraction and MS detection were carefully investigated...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28212464/oxytocin-reduces-ethanol-self-administration-in-mice
#2
Courtney E King, William C Griffin, Lauryn N Luderman, Malcolm M Kates, Jacqueline F McGinty, Howard C Becker
BACKGROUND: Excessive ethanol consumption remains an important health concern and effective treatments are lacking. The central oxytocin system has emerged as a potentially important therapeutic target for alcohol and drug addiction. These studies tested the hypothesis that oxytocin reduces ethanol consumption. METHODS: Male C57BL/6J mice were given access to ethanol (20% v/v) using a model of binge-like drinking ("drinking-in-the-dark") that also included the use of lickometer circuits to evaluate the temporal pattern of intake as well as 2-bottle choice drinking in the home cage...
February 17, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28202350/chronic-social-instability-increases-anxiety-like-behavior-and-ethanol-preference-in-male-long-evans-rats
#3
Alyssa R Roeckner, Alexandra Bowling, Tracy R Butler
Chronic stress during adolescence is related to increased prevalence of anxiety disorders and alcohol use disorders in humans. This phenotype has been consistently recapitulated in animal models with male subjects, but models using female subjects are fewer. The aim of these studies was to test the hypothesis that chronic social instability (CSI) during adolescence engenders increased anxiety-like behavior, increased corticosterone, and greater ethanol intake and/or preference than control groups in male and female rats...
February 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28201924/conditioned-effects-of-ethanol-on-the-immune-system
#4
Anny Gano, Ricardo Marcos Pautassi, Tamara L Doremus-Fitzwater, Terrence Deak
Several studies indicate that the immune system can be subjected to classical conditioning. Acute ethanol intoxication significantly modulates several pro-inflammatory cytokines (e.g. interleukins-1 and 6 [IL-1β and IL-6, respectively] and tumor necrosis factor alpha [TNFα])) in several brain areas, including amygdala (AMG), paraventricular nucleus (PVN), and hippocampus (HPC). It is unknown, however, whether cues associated with ethanol can elicit conditioned alterations in cytokine expression. The present study analyzed, in male Sprague-Dawley rats, whether ethanol-induced changes in the central cytokine response may be amenable to conditioning...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28197082/the-role-of-acetaldehyde-in-the-increased-acceptance-of-ethanol-after-prenatal-ethanol-exposure
#5
Mirari Gaztañaga, Asier Angulo-Alcalde, Norman E Spear, M Gabriela Chotro
Recent studies show that acetaldehyde, the first metabolite in the oxidation of ethanol, can be responsible for both, the appetitive and the aversive effects produced by ethanol intoxication. More specifically, it has been hypothesized that acetaldehyde produced in the periphery by the liver is responsible for the aversive effects of ethanol, while the appetitive effects relate to the acetaldehyde produced centrally through the catalase system. On the other hand, from studies in our and other laboratories, it is known that ethanol exposure during the last gestational days (GD) consistently enhances the postnatal acceptance of ethanol when measured during early ontogeny in the rat...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28196026/caffeine-inhibits-fluid-secretion-by-interlobular-ducts-from-guinea-pig-pancreas
#6
Yuka Mochimaru, Akiko Yamamoto, Miyuki Nakakuki, Makoto Yamaguchi, Ituka Taniguchi, Hiroshi Ishiguro
OBJECTIVES: Caffeine is contained in coffee, tea, and a lot of beverages and foods. We examined the direct effects of caffeine on the physiological function of pancreatic duct cells by using interlobular duct segments isolated from guinea pig pancreas. METHODS: The rate of fluid secretion was continuously measured by monitoring the luminal volume of isolated duct segments. Changes in intracellular Ca concentration ([Ca]i) were estimated by microfluorometry in ducts loaded with fura-2...
February 14, 2017: Pancreas
https://www.readbyqxmd.com/read/28195335/voluntary-binge-consumption-of-ethanol-in-a-sweetened-chocolate-flavored-solution-by-male-and-female-adolescent-sprague-dawley-rats
#7
Dominika Hosová, Linda Patia Spear
BACKGROUND: The still maturing adolescent brain may be particularly vulnerable to lasting consequences of ethanol (EtOH) exposure. Yet, human adolescents are the age group most likely to engage in binge drinking (a pattern of drinking leading to blood EtOH concentrations (BECs) of 80 mg/dl or greater). Most studies to date assessing the long-term effects of adolescent EtOH exposure in outbred rodent populations have either used experimenter-administered EtOH to produce BECs in the binge range or assessed voluntary intake of EtOH at well below binge levels...
February 14, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28194850/cannabidiol-reduces-ethanol-consumption-motivation-and-relapse-in-mice
#8
Adrián Viudez-Martínez, María S García-Gutiérrez, Carmen María Navarrón, María Isabel Morales-Calero, Francisco Navarrete, Ana Isabel Torres-Suárez, Jorge Manzanares
This study evaluated the effects of cannabidiol (CBD) on ethanol reinforcement, motivation and relapse in C57BL/6 J mice. The effects of CBD (60 mg/kg, i.p.) on blood ethanol concentration, hypothermia and handling-induced convulsions associated to acute ethanol administration were evaluated. The two-bottle choice paradigm was performed to assess the effects of CBD (30, 60 and 120 mg/kg/day, i.p.) on ethanol intake and preference. In addition, an oral ethanol self-administration experiment was carried out to evaluate the effects of CBD [a single s...
February 13, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28193304/physiological-response-and-semen-quality-of-rabbit-bucks-supplemented-with-moringa-leaves-ethanolic-extract-during-summer-season
#9
N I El-Desoky, N M Hashem, A Elkomy, Z R Abo-Elezz
Exposure of rabbit bucks to summer heat stress reduces their homeostasis and semen quality leading to a temporal subfertility. The potentiality of ethanolic extract of Moringa oleifera leaves (M. oleifera ethanolic extract (MLEE)) to reduce negative impacts of heat stress on physiological and semen quality traits was investigated. A total of 28 adult V-line rabbit bucks were randomly distributed among four experimental groups of seven rabbits each. The first group received water (placebo) and served as a control (M0)...
February 14, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28187948/alcohol-drinking-during-adolescence-increases-consumptive-responses-to-alcohol-in-adulthood-in-wistar-rats
#10
Leslie R Amodeo, Diana Kneiber, Derek N Wills, Cindy L Ehlers
Binge drinking and the onset of alcohol-use disorders usually peak during the transition between late adolescence and early adulthood, and early adolescent onset of alcohol consumption has been demonstrated to increase the risk for alcohol dependence in adulthood. In the present study, we describe an animal model of early adolescent alcohol consumption where animals drink unsweetened and unflavored ethanol in high concentrations (20%). Using this model, we investigated the influence of drinking on alcohol-related appetitive behavior and alcohol consumption levels in early adulthood...
February 7, 2017: Alcohol
https://www.readbyqxmd.com/read/28179886/does-oxidative-stress-induced-by-alcohol-consumption-affect-orthodontic-treatment-outcome
#11
REVIEW
Jorge M Barcia, Sandra Portolés, Laura Portolés, Alba C Urdaneta, Verónica Ausina, Gema M A Pérez-Pastor, Francisco J Romero, Vincent M Villar
HIGHLIGHTS Ethanol, Periodontal ligament, Extracellular matrix, Orthodontic movement. Alcohol is a legal drug present in several drinks commonly used worldwide (chemically known as ethyl alcohol or ethanol). Alcohol consumption is associated with several disease conditions, ranging from mental disorders to organic alterations. One of the most deleterious effects of ethanol metabolism is related to oxidative stress. This promotes cellular alterations associated with inflammatory processes that eventually lead to cell death or cell cycle arrest, among others...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28174112/epigenetic-basis-of-the-dark-side-of-alcohol-addiction
#12
REVIEW
Subhash C Pandey, Evan Kyzar, Huaibo Zhang
Alcoholism is a complex brain disease characterized by three distinct stages of the addiction cycle that manifest as neuroadaptive changes in the brain. One such stage of the addiction cycle is alcohol withdrawal and the negative affective states that promote drinking and maintain addiction. Repeated alcohol use, genetic predisposition to alcoholism and anxiety, and alcohol exposure during crucial developmental periods all contribute to the development of alcohol-induced withdrawal and negative affective symptoms...
February 4, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28170358/influence-of-ethanol-on-oxycodone-induced-respiratory-depression-a-dose-escalating-study-in-young-and-elderly-individuals
#13
Rutger van der Schrier, Margot Roozekrans, Erik Olofsen, Leon Aarts, Monique van Velzen, Merijn de Jong, Albert Dahan, Marieke Niesters
BACKGROUND: Respiratory depression is a potentially fatal complication of opioid use, which may be exacerbated by simultaneous ethanol intake. In this three-way sequential crossover dose-escalating study, the influence of coadministration of oral oxycodone and intravenous ethanol was assessed on resting ventilation, apneic events and the hypercapnic ventilatory response in healthy young and older volunteers. METHODS: Twelve young (21 to 28 yr) and 12 elderly (66 to 77 yr) opioid-naive participants ingested one 20 mg oxycodone tablet combined with an intravenous infusion of 0, 0...
March 2017: Anesthesiology
https://www.readbyqxmd.com/read/28166603/electroacupuncture-attenuates-hyperalgesia-in-rats-withdrawn-from-chronic-alcohol-drinking-via-habenular-mu-opioid-receptors
#14
Jing Li, Caihong Fu, Hongwei Liu, Rao Fu, Wanhong Zuo, Seungwoo Kang, Pei Chen, Danielle Gregor, Rose Paulose, Alex Bekker, Jiang-Hong Ye
BACKGROUND: Hyperalgesia or increased sensitivity to pain is often found in alcoholics during alcohol withdrawal and may contribute to relapse drinking. Alternative therapies such as acupuncture and electroacupuncture (EA), through mechanisms involving opioid receptors, may reduce pain and substance dependence and withdrawal syndromes. The lateral habenula (LHb), an epithalamic structure rich in mu opioid receptors (MORs), is a critical target for both drugs of abuse and pain. We previously observed hyperalgesia in rats withdrawn from chronic ethanol (EtOH) drinking and found that EA at the acupoint Zusanli (ST36) reduced EtOH intake...
February 6, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28161754/further-characterization-of-the-glyt-1-inhibitor-org25935-anti-alcohol-neurobehavioral-and-gene-expression-effects
#15
Helga Höifödt Lidö, Susanne Jonsson, Petri Hyytiä, Mia Ericson, Bo Söderpalm
The glycine transporter-1 inhibitor Org25935 is a promising candidate in a treatment concept for alcohol use disorder targeting the glycine system. Org25935 inhibits ethanol-induced dopamine elevation in brain reward regions and reduces ethanol intake in Wistar rats. This study aimed to further characterise the compound and used ethanol consumption, behavioral measures, and gene expression as parameters to investigate the effects in Wistar rats and, as pharmacogenetic comparison, Alko-Alcohol (AA) rats. Animals were provided limited access to ethanol in a two-bottle free-choice paradigm with daily drug administration...
February 4, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28155613/functional-upregulation-of-stim-1-orai-1-mediated-store-operated-ca2-contributing-to-the-hypertension-development-elicited-by-chronic-etoh-consumption
#16
Guilherme Henrique Souza Bomfim, Iago Méndez-López, Juan Alberto Arranz-Tagarro, Adriana Aparecida Ferraz Carbonel, Danilo Roman-Campos, Juan Fernando Padín, Antonio García García, Aron Jurkiewicz, Neide Hyppolito Jurkiewicz
Chronic ethanol (EtOH) consumption has been associated with deleterious effects on the cardiovascular system by abnormal calcium (Ca²⁺) handling. Store-operated Ca2+ entry (SOCE) is related to cardiovascular remodeling which leads to the hypertension development, and the coupling between STIM-1 (ER Ca2+ sensor) and Orai-1 (channel pore) is a key mechanism to control SOCE through of store-operated Ca2+ channels (SOCCs). However, the role of STIM-1/Orai-1-mediated SOCE and its cross-talk with EtOH-triggered vascular remodeling and hypertension remain poorly understood...
February 1, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28146272/ethanol-consumption-in-mice-lacking-cd14-tlr2-tlr4-or-myd88
#17
Yuri A Blednov, Mendy Black, Julia Chernis, Adriana Da Costa, Jody Mayfield, R Adron Harris
BACKGROUND: Molecular and behavioral studies support a role for innate immune proinflammatory pathways in mediating the effects of alcohol. Increased levels of Toll-like receptors (TLRs) have been observed in animal models of alcohol consumption and in human alcoholics, and many of these TLRs signal via the MyD88-dependent pathway. We hypothesized that this pathway is involved in alcohol drinking and examined some of its key signaling components. METHODS: Different ethanol (EtOH)-drinking paradigms were studied in male and female control C57BL/6J mice versus mice lacking CD14, TLR2, TLR4 (C57BL/10ScN), or MyD88...
February 1, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28134848/insulin-production-and-resistance-in-different-models-of-diet-induced-obesity-and-metabolic-syndrome
#18
Salamah M Alwahsh, Benjamin J Dwyer, Shareen Forbes, David H van Thiel, Philip J Starkey Lewis, Giuliano Ramadori
The role of the liver and the endocrine pancreas in development of hyperinsulinemia in different types of obesity remains unclear. Sedentary rats (160 g) were fed a low-fat-diet (LFD, chow 13% kcal fat), high-fat-diet (HFD, 35% fat), or HFD+ 30% ethanol+ 30% fructose (HF-EFr, 22% fat). Overnight-fasted rats were culled after one, four or eight weeks. Pancreatic and hepatic mRNAs were isolated for subsequent RT-PCR analysis. After eight weeks, body weights increased three-fold in the LFD group, 2.8-fold in the HFD group, and 2...
January 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28109342/developmental-lead-exposure-induces-opposite-effects-on-ethanol-intake-and-locomotion-in-response-to-central-vs-systemic-cyanamide-administration
#19
Mara Soledad Mattalloni, Romina Deza-Ponzio, Paula Alejandra Albrecht, Liliana Marina Cancela, Miriam Beatriz Virgolini
Lead (Pb) is a developmental neurotoxicant that elicits differential responses to drugs of abuse. Particularly, ethanol consumption has been demonstrated to be increased as a consequence of environmental Pb exposure, with catalase (CAT) and brain acetaldehyde (ACD, the first metabolite of ethanol) playing a role. The present study sought to interfere with ethanol metabolism by inhibiting ALDH2 (mitochondrial aldehyde dehydrogenase) activity in both liver and brain from control and Pb-exposed rats as a strategy to accumulate ACD, a substance that plays a major role in the drug's reinforcing and/or aversive effects...
February 2017: Alcohol
https://www.readbyqxmd.com/read/28107511/environmental-enrichment-blunts-ethanol-consumption-after-restraint-stress-in-c57bl-6-mice
#20
Priscila Marianno, Karina Possa Abrahao, Rosana Camarini
Elevated alcohol intake after abstinence is a key feature of the addiction process. Some studies have shown that environmental enrichment (EE) affects ethanol intake and other reinforcing effects. However, different EE protocols may vary in their ability to influence alcohol consumption and stress-induced intake. The present study evaluated whether short (3 h) or continuous (24 h) EE protocols affect ethanol consumption after periods of withdrawal. Mice were challenged with stressful stimuli (24 h isolation and restraint stress) to evaluate the effects of stress on drinking...
2017: PloS One
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