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Acute alcohol withdrawal

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https://www.readbyqxmd.com/read/28748375/attenuation-of-ethanol-abstinence-induced-anxiety-and-depressive-like-behavior-by-the-phosphodiesterase-4-inhibitor-rolipram-in-rodents
#1
Mei-Fang Gong, Rui-Ting Wen, Ying Xu, Jian-Chun Pan, Ning Fei, Yan-Meng Zhou, Jiang-Ping Xu, Jian-Hui Liang, Han-Ting Zhang
RATIONALE: Withdrawal symptoms stand as a core feature of alcohol dependence. Our previous results have shown that inhibition of phosphodiesterase-4 (PDE4) decreased ethanol seeking and drinking in alcohol-preferring rodents. However, little is known about whether PDE4 is involved in ethanol abstinence-related behavior. OBJECTIVE: The objective of this study was to characterize the role of PDE4 in the development of anxiety- and depressive-like behavior induced by abstinence from ethanol exposure in different animal models...
July 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28730283/blockade-of-alcohol-escalation-and-relapse-drinking-by-pharmacological-faah-inhibition-in-male-and-female-c57bl-6j-mice
#2
Yan Zhou, Benjamin I Schwartz, Joanna Giza, Steven S Gross, Francis S Lee, Mary Jeanne Kreek
BACKGROUND: Anandamide (AEA)-dependent signaling is regulated by the catabolic enzyme fatty acid amide hydrolase (FAAH). Several lines of evidence have demonstrated that FAAH and AEA are involved in the behavioral effects of alcohol. Therefore, we investigated whether a selective FAAH inhibitor, URB597 (cyclohexylcarbamic acid 3'-[aminocarbonyl]-[1,1'-biphenyl]-3-yl ester), altered alcohol intake in mice in a voluntary alcohol drinking model. METHODS: Mice, subjected to 3 weeks of chronic intermittent access (IA) in a two-bottle choice paradigm with 24-h access every other day, developed rapid escalation of alcohol intake and high preference...
July 20, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28714785/effects-of-alcohol-on-inhibitory-avoidance-learning-in-zebrafish-danio-rerio
#3
Ricardo Rodrigues Amorim, Priscila Fernandes Silva, Ana Carolina Luchiari
The zebrafish (Danio rerio) can be used in studies addressing the effects of drugs on learning, memory, and anxiety. In the present study, we investigated the effect of different alcohol treatments (chronic and acute) on the learning and anxiety response of zebrafish in an inhibitory avoidance paradigm. Zebrafish were initially exposed to different alcohol treatments and submitted to an inhibitory avoidance protocol, where an electroshock was applied to the fish as they swam from the white to the black side of a shuttle box tank (naturally preferred environment of zebrafish)...
July 17, 2017: Zebrafish
https://www.readbyqxmd.com/read/28679017/a-comparison-of-qtc-intervals-in-alcohol-withdrawal-patients-versus-acute-coronary-syndrome-patients
#4
Timothy Chu, Keith Azevedo, Amy A Ernst, Dusadee Sarangarm, Steven J Weiss
OBJECTIVES: Patients with an alcohol use disorder experiencing acute intoxication or withdrawal may be at risk for electrocardiograph (ECG) abnormalities, including prolongation of repolarization (long QTc [corrected QT]) that may contribute to arrhythmias and may be associated with a threefold increase in the likelihood of sudden cardiac events. Patients with acute coronary syndrome may have prolonged QTc as well. To our knowledge, no previous studies have compared the QTc of ACS with acute ethanol (EtOH) withdrawal syndromes in the emergency department (ED)...
July 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28656627/cb1-and-ethanol-effects-on-glutamatergic-transmission-in-the-central-amygdala-of-male-and-female-msp-and-wistar-rats
#5
Dean Kirson, Christopher Shaun Oleata, Loren Howell Parsons, Roberto Ciccocioppo, Marisa Roberto
The central amygdala (CeA) is involved in the processing of anxiety and stress and plays a role in ethanol consumption. Chronic ethanol recruits stress systems in the CeA, leading to aversive withdrawal symptoms. Although primarily GABAergic, CeA contains glutamatergic afferents, and we have reported inhibitory effects of ethanol on locally evoked glutamatergic responses in CeA of Wistar and Marchigian Sardinian alcohol-preferring (msP) rats. Notably, msP rats display enhanced anxiety, stress and alcohol drinking, simulating the alcohol-dependent phenotype...
June 28, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28647675/abstinence-from-prolonged-ethanol-exposure-affects-plasma-corticosterone-glucocorticoid-receptor-signaling-and-stress-related-behaviors
#6
Sucharita S Somkuwar, Leandro F Vendruscolo, McKenzie J Fannon, Brooke E Schmeichel, Tran Bao Nguyen, Jasmin Guevara, Harpreet Sidhu, Candice Contet, Eric P Zorrilla, Chitra D Mandyam
Alcohol dependence is linked to dysregulation of the hypothalamic-pituitary-adrenal axis. Here, we investigated effects of repeated ethanol intoxication-withdrawal cycles (using chronic intermittent ethanol vapor inhalation; CIE) and abstinence from CIE on peak and nadir plasma corticosterone (CORT) levels. Irritability- and anxiety-like behaviors as well as glucocorticoid receptors (GR) in the medial prefrontal cortex (mPFC) were assessed at various intervals (2h-28d) after cessation of CIE. Results show that peak CORT increased during CIE, transiently decreased during early abstinence (1-11d), and returned to pre-abstinence levels during protracted abstinence (17-27d)...
October 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28624587/the-lateral-habenula-and-alcohol-role-of-glutamate-and-m-type-potassium-channels
#7
REVIEW
Avi Shah, Wanhong Zuo, Seungwoo Kang, Jing Li, Rao Fu, Haifeng Zhang, Alex Bekker, Jiang-Hong Ye
Alcohol use disorder (AUD) or alcoholism is a chronic relapsing disorder. Our knowledge of alcoholism hinges on our understanding of its effects on the brain. This review will center on the effects of alcohol in the lateral habenula (LHb), an epithalamic structure that connects the forebrain with the midbrain and encodes aversive signaling. Like many addictive drugs, alcohol has both rewarding and aversive properties. While alcohol's euphoric property is believed to be important for the initiation of drinking, increasing evidence suggests that alcohol's negative affect plays a critical role in excessive drinking and alcohol dependence...
June 14, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28554848/sex-and-hormone-dependent-alterations-in-alcohol-withdrawal-induced-anxiety-and-corticolimbic-endocannabinoid-signaling
#8
Angela M Henricks, Anthony L Berger, Janelle M Lugo, Lydia N Baxter-Potter, Kennedy V Bieniasz, Gavin Petrie, Martin A Sticht, Matthew N Hill, Ryan J McLaughlin
Alcohol dependence is associated with anxiety during withdrawal. The endocannabinoid (ECB) system participates in the neuroendocrine and behavioral response to stress and changes in corticolimbic ECB signaling may contribute to alcohol withdrawal-induced anxiety. Moreover, symptoms of alcohol withdrawal differ between sexes and sexual dimorphism in withdrawal-induced ECB recruitment may be a contributing factor. Herein, we exposed intact male and female rats and ovariectomized (OVX) female rats with or without estradiol (E2) replacement to 6 weeks of chronic intermittent alcohol vapor and measured anxiety-like behavior, ECB content, and ECB-related mRNA in the basolateral amygdala (BLA) and ventromedial prefrontal cortex (vmPFC)...
May 26, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28554528/lobeline-attenuates-ethanol-abstinence-induced-depression-like-behavior-in-mice
#9
Monzurul Amin Roni, Shafiqur Rahman
Evidence indicates that the brain nicotinic acetylcholine receptor (nAChRs) ligand lobeline reduces depression-like behaviors, ethanol drinking, and nicotine withdrawal-induced depression-like behaviors. The purpose of the present study was to determine the effects of lobeline on ethanol abstinence-induced depression-like behavior and associated neuroadaptive changes in mice. Adult C57BL/6J male mice were allowed to drink 10% ethanol for 4 weeks using a two-bottle choice procedure. Mice were tested after 24 h and 14 days of ethanol abstinence in a forced swim test (FST), a measure for depression-like behavior...
June 2017: Alcohol
https://www.readbyqxmd.com/read/28536106/%C3%AE-2-subunit-containing-gabaa-receptor-subtypes-are-upregulated-and-contribute-to-alcohol-induced-functional-plasticity-in-the-rat-hippocampus
#10
A Kerstin Lindemeyer, Yi Shen, Ferin Yazdani, Xuesi M Shao, Igor Spigelman, Daryl L Davies, Richard W Olsen, Jing Liang
Alcohol (EtOH) intoxication causes changes in the rodent brain γ-aminobutyric acid receptor (GABAAR) subunit composition and function, playing a crucial role in EtOH withdrawal symptoms and dependence. Building evidence indicates that withdrawal from acute EtOH and chronic intermittent EtOH (CIE) results in decreased EtOH-enhanced GABAAR δ subunit-containing extrasynaptic and EtOH-insensitive α1βγ2 subtype synaptic GABAARs but increased synaptic α4βγ2 subtype, and increased EtOH sensitivity of GABAAR miniature postsynaptic currents (mIPSCs) correlated with EtOH dependence...
August 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28500684/impact-of-roux-en-y-gastric-bypass-surgery-on-appetite-alcohol-intake-behaviors-and-midbrain-ghrelin-signaling-in-the-rat
#11
Sunil Sirohi, Ben D Richardson, Janelle M Lugo, David J Rossi, Jon F Davis
OBJECTIVE: Roux-en-Y gastric bypass (RYGB) surgery reduces appetite and stimulates new onset alcohol misuse; however, the genesis of these behavioral changes is unclear. This study is hypothesized that new onset alcohol intake is a behavioral adaptation that occurs secondary to reduced appetite and correlates with altered central ghrelin signaling. METHODS: Hedonic high-fat diet (HFD) intake was evaluated prior to the assessment of alcohol intake behaviors in RYGB and control rats...
May 12, 2017: Obesity
https://www.readbyqxmd.com/read/28461696/a-relationship-between-the-aldosterone-mineralocorticoid-receptor-pathway-and-alcohol-drinking-preliminary-translational-findings-across-rats-monkeys-and-humans
#12
E G Aoun, V A Jimenez, L F Vendruscolo, N A R Walter, E Barbier, A Ferrulli, C L Haass-Koffler, P Darakjian, M R Lee, G Addolorato, M Heilig, R Hitzemann, G F Koob, K A Grant, L Leggio
Aldosterone regulates electrolyte and fluid homeostasis through binding to the mineralocorticoid receptors (MRs). Previous work provides evidence for a role of aldosterone in alcohol use disorders (AUDs). We tested the hypothesis that high functional activity of the mineralocorticoid endocrine pathway contributes to vulnerability for AUDs. In Study 1, we investigated the relationship between plasma aldosterone levels, ethanol self-administration and the expression of CYP11B2 and MR (NR3C2) genes in the prefrontal cortex area (PFC) and central nucleus of the amygdala (CeA) in monkeys...
May 2, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28442772/discriminative-and-distinct-phenotyping-by-constrained-tensor-factorization
#13
Yejin Kim, Robert El-Kareh, Jimeng Sun, Hwanjo Yu, Xiaoqian Jiang
Adoption of Electronic Health Record (EHR) systems has led to collection of massive healthcare data, which creates oppor- tunities and challenges to study them. Computational phenotyping offers a promising way to convert the sparse and complex data into meaningful concepts that are interpretable to healthcare givers to make use of them. We propose a novel su- pervised nonnegative tensor factorization methodology that derives discriminative and distinct phenotypes. We represented co-occurrence of diagnoses and prescriptions in EHRs as a third-order tensor, and decomposed it using the CP algorithm...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28427424/microglial-depletion-alters-the-brain-neuroimmune-response-to-acute-binge-ethanol-withdrawal
#14
T Jordan Walter, Fulton T Crews
BACKGROUND: Recent studies have implicated microglia-the resident immune cells of the brain-in the pathophysiology of alcoholism. Indeed, post-mortem alcoholic brains show increased microglial markers and increased immune gene expression; however, the effects of ethanol on microglial functioning and how this impacts the brain remain unclear. In this present study, we investigate the effects of acute binge ethanol on microglia and how microglial depletion changes the brain neuroimmune response to acute binge ethanol withdrawal...
April 20, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28426670/mice-expressing-a-hyper-sensitive-form-of-the-cb1-cannabinoid-receptor-cb1-show-modestly-enhanced-alcohol-preference-and-consumption
#15
David J Marcus, Angela N Henderson-Redmond, Maciej Gonek, Michael L Zee, Jill C Farnsworth, Randa A Amin, Mary-Jeanette Andrews, Brian J Davis, Ken Mackie, Daniel J Morgan
We recently characterized S426A/S430A mutant mice expressing a desensitization-resistant form of the CB1 receptor. These mice display an enhanced response to endocannabinoids and ∆9-THC. In this study, S426A/S430A mutants were used as a novel model to test whether ethanol consumption, morphine dependence, and reward for these drugs are potentiated in mice with a "hyper-sensitive" form of CB1. Using an unlimited-access, two-bottle choice, voluntary drinking paradigm, S426A/S430A mutants exhibit modestly increased intake and preference for low (6%) but not higher concentrations of ethanol...
2017: PloS One
https://www.readbyqxmd.com/read/28425121/role-of-the-dynorphin-kappa-opioid-receptor-system-in-the-motivational-effects-of-ethanol
#16
REVIEW
Rachel I Anderson, Howard C Becker
Evidence has demonstrated that dynorphin (DYN) and the kappa opioid receptor (KOR) system contribute to various psychiatric disorders, including anxiety, depression, and addiction. More recently, this endogenous opioid system has received increased attention as a potential therapeutic target for treating alcohol use disorders. In this review, we provide an overview and synthesis of preclinical studies examining the influence of alcohol (ethanol [EtOH]) exposure on DYN/KOR expression and function, as well as studies examining the effects of DYN/KOR manipulation on EtOH's rewarding and aversive properties...
August 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28424803/use-of-a-flumazenil-infusion-to-treat-chlordiazepoxide-toxicity
#17
I R Wallace, E C Campbell, M Trimble
"Alcohol detox" is a common presentation to acute medical services and is usually managed via standardised guidelines and protocols. We present a case of chlordiazepoxide toxicity, requiring repeated bolus doses and subsequently 24 hours of an intravenous infusion of flumazenil in response to guideline directed management of an alcohol withdrawal state. The use of prolonged flumazenil infusions to treat benzodiazepine toxicity is infrequently described. Chlordiazepoxide is metabolised in the hepatic microsomal pathway and hepatic impairment can lead to accumulation of toxic metabolites, which may have been the explanation for toxicity in this case...
2017: Acute Medicine
https://www.readbyqxmd.com/read/28412926/acute-symptomatic-seizures-in-geriatric-patients-with-multiple-risk-factors-a-diagnostic-challenge
#18
Ralf Landwehr, Robert Liszka
Acute symptomatic seizures and epileptic disorders are frequent health problems of elderly patients. An early and reliable distinction of the seizure etiology is important to ensure adequate treatment, and to prevent unwarranted diagnostic and therapeutic procedures. The most common causes of acute symptomatic seizures - acute cerebrovascular disorders, metabolic disorders, traumatic brain injury, meningo-encephalitis, cerebral tumors, and withdrawal of alcohol and other central agents - are well-defined and seem to permit straightforward diagnostic and therapeutic strategies...
April 13, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28361425/anxiolytic-properties-of-trimetazidine-in-experimental-models-of-increased-anxiety
#19
L G Kolik, A V Nadorova, V N Stolyaruk, I A Miroshkina, I B Tsorin, S A Kryzhanovskii
Effect of trimetazidine (20 and 30 mg/kg) on elevated plus maze behavior of rodents was assessed in the genetic and pharmacological anxiety models. Single intraperitoneal injection of trimetazidine in a dose of 20 mg/kg prevented anxiety development in highly emotional male BALB/c mice and increased the time spent in open arms of the maze. In outbred male rats receiving 10% ethanol solution for 20 weeks, trimetazidine administered intraperitoneally in a dose of 20 mg/kg for 28 days abolished ethanol withdrawal-induced anxiogenesis developed against the background of 4-week alcohol deprivation: it increased the time spent in open arms, the number of entries into open arms, and total locomotor activity in the maze...
March 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28343423/management-of-precipitated-opiate-withdrawal-syndrome-induced-by-nalmefene-mistakenly-prescribed-in-opiate-dependent-patients-a-review-for-clinicians
#20
REVIEW
Nicolas Franchitto, Benedicte Jullian, Juliette Salles, Fanny Pelissier, Benjamin Rolland
Nalmefene, a long-acting µ-opioid antagonist approved to treat alcohol use disorder, is occasionally mistakenly prescribed to opiate-dependent or opioid-treated patients. We review recent literature on drug-drug interactions between nalmefene and opioids that lead to precipitated opioid withdrawal, and focus on its management and planning for care at discharge. Areas covered: This article provides a brief and comprehensive review of management of precipitated opioid withdrawal syndrome when nalmefene is associated with an opioid, whether misused or legally prescribed...
June 2017: Expert Opinion on Drug Metabolism & Toxicology
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