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alcohol local regulation

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https://www.readbyqxmd.com/read/29152606/ethanol-induced-steatosis-involves-impairment-of-lipophagy-associated-with-reduced-dynamin2-activity
#1
Karuna Rasineni, Terrence M Donohue, Paul G Thomes, Li Yang, Dean J Tuma, Mark A McNiven, Carol A Casey
Background: Lipid droplets (LDs), the organelles central to alcoholic steatosis, are broken down by lipophagy, a specialized form of autophagy. Here, we hypothesize that ethanol administration retards lipophagy by down-regulating Dynamin 2 (Dyn2), a protein that facilitates lysosome re-formation, contributing to hepatocellular steatosis. Methods: Primary hepatocytes were isolated from male Wistar rats fed Lieber-DeCarli control or EtOH liquid diets for 6-8 wk. Hepatocytes were incubated in complete medium (fed) or nutrient-free medium (fasting) with or without the Dyn2 inhibitor Dynasore or the Src inhibitor SU6656...
August 2017: Hepatol Commun
https://www.readbyqxmd.com/read/29141952/characterization-and-analysis-of-ccr-and-cad-gene-families-at-the-whole-genome-level-for-lignin-synthesis-of-stone-cells-in-pear-pyrus-bretschneideri-fruit
#2
Xi Cheng, Manli Li, Dahui Li, Jinyun Zhang, Qing Jin, Lingling Sheng, Yongping Cai, Yi Lin
The content of stone cells has significant effects on the flavour and quality of pear fruit. Previous research suggested that lignin deposition is closely related to stone cell formation. In the lignin biosynthetic pathway, cinnamoyl-CoA reductase (CCR) and cinnamyl alcohol dehydrogenase (CAD), dehydrogenase/reductase family members, catalyse the last two steps in monolignol synthesis. However, there is little knowledge of the characteristics of the CCR and CAD families in pear and their involvement in lignin synthesis of stone cells...
November 15, 2017: Biology Open
https://www.readbyqxmd.com/read/29102800/hmgb1-il-1%C3%AE-complexes-regulate-neuroimmune-responses-in-alcoholism
#3
Leon G Coleman, Jian Zou, Liya Qin, Fulton T Crews
Neuroimmune activation is a key feature of the pathologies of numerous psychiatric disorders including alcoholism, depression, and anxiety. Both HMGB1 and IL-1β have been implicated in brain disorders. Previous studies find HMGB1 andIL-1β form heterocomplexes in vitro with enhanced immune responses, lead to our hypothesis that HMGB1 and IL-1β heterocomplexes formed in vivo to contribute to the pathology of alcoholism. HMGB1/IL-1β heterocomplexes were prepared in vitro and found to potentiate IL-1β receptor proinflammatory gene induction compared to IL-1β alone in hippocampal brain slice culture...
November 1, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29072903/three-dimensional-printed-thermal-regulation-textiles
#4
Tingting Gao, Zhi Yang, Chaoji Chen, Yiju Li, Kun Fu, Jiaqi Dai, Emily M Hitz, Hua Xie, Boyang Liu, Jianwei Song, Bao Yang, Liangbing Hu
Space cooling is a predominant part of energy consumption in people's daily life. Although cooling the whole building is an effective way to provide personal comfort in hot weather, it is energy-consuming and high-cost. Personal cooling technology, being able to provide personal thermal comfort by directing local heat to the thermally regulated environment, has been regarded as one of the most promising technologies for cooling energy and cost savings. Here, we demonstrate a personal thermal regulated textile using thermally conductive and highly aligned boron nitride (BN)/poly(vinyl alcohol) (PVA) composite (denoted as a-BN/PVA) fibers to improve the thermal transport properties of textiles for personal cooling...
November 1, 2017: ACS Nano
https://www.readbyqxmd.com/read/29071769/inhibition-of-fatty-acid-amide-hydrolase-in-the-central-amygdala-alleviates-co-morbid-expression-of-innate-anxiety-and-excessive-alcohol-intake
#5
Serena Stopponi, Yannick Fotio, Ana Domi, Anna Maria Borruto, Luis Natividad, Marisa Roberto, Roberto Ciccocioppo, Nazzareno Cannella
Fatty acid amide hydrolase (FAAH) is an enzyme that prominently degrades the major endocannabinoid N-arachidonoylethanolamine (anandamide). Inhibition of this enzyme leads to increased anandamide levels in brain regions that modulate stress and anxiety. Recently, we found that genetically selected Marchigian Sardinian alcohol-preferring (msP) rats display hyperactive FAAH in amygdalar regions that was associated with increased stress sensitivity and a hyper-anxious phenotype. Our previous work has also demonstrated that msPs display an innate preference for and excessive consumption of alcohol, potentially reflecting a form of self-medication to gain relief from hyper-anxious states...
October 26, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28942443/a-novel-role-of-sirt1-fgf-21-in-taurine-protection-against-cafeteria-diet-induced-steatohepatitis-in-rats
#6
Azza H Abd Elwahab, Basma K Ramadan, Mona F Schaalan, Amina M Tolba
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is one of the alarmingly rising clinical problems in the 21st century with no effective drug treatment until now. Taurine is an essential amino acid in humans that proved efficacy as a non-pharmacological therapy in a plethora of diseases; however, its impact on NAFLD remains elusive. The aim of the current study is to evaluate the protective mechanism of taurine in experimental steatohepatitis induced by junk food given as cafeteria-diet (CAF-D) in male albino rats...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28942046/chronic-ethanol-exposure-increases-inhibition-of-optically-targeted-phasic-dopamine-release-in-the-nucleus-accumbens-core-and-medial-shell-ex-vivo
#7
James R Melchior, Sara R Jones
Dopamine signaling encodes reward learning and motivated behavior through modulation of synaptic signaling in the nucleus accumbens, and aberrations in these processes are thought to underlie obsessive behaviors associated with alcohol abuse. The nucleus accumbens is divided into core and shell sub-regions with overlapping but also divergent contributions to behavior. Here we optogenetically targeted dopamine projections to the accumbens allowing us to isolate stimulation of dopamine terminals ex vivo. We applied 5 pulse (phasic) light stimulations to probe intrinsic differences in dopamine release parameters across regions...
September 20, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28936822/-posterior-reversible-encephalopathy-syndrome-triggerred-by-alcohol-withdrawal
#8
Tuğçe Mengi, Yaprak Seçil, Aysel Çoban, Yeşim Beckmann
INTRODUCTION: Posterior reversible encephalopathy syndrome (PRES) is a clinico-radiological entity characterized by headache, altered mental status, epileptic seizures, visual disturbances and typically transient changes in posterior cerebral circulation areas. In this article, we present a case of alcohol withdrawal accompanied by PRES. CASE PRESENTATION: A 53-year-old male patient presented to the emergency department with visual hallucinations and meaningless speech...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/28931433/role-of-gabaa-receptors-in-alcohol-use-disorders-suggested-by-chronic-intermittent-ethanol-cie-rodent-model
#9
REVIEW
Richard W Olsen, Jing Liang
GABAergic inhibitory transmission is involved in the acute and chronic effects of ethanol on the brain and behavior. One-dose ethanol exposure induces transient plastic changes in GABAA receptor subunit levels, composition, and regional and subcellular localization. Rapid down-regulation of early responder δ subunit-containing GABAA receptor subtypes mediating ethanol-sensitive tonic inhibitory currents in critical neuronal circuits corresponds to rapid tolerance to ethanol's behavioral responses. Slightly slower, α1 subunit-containing GABAA receptor subtypes mediating ethanol-insensitive synaptic inhibition are down-regulated, corresponding to tolerance to additional ethanol behaviors plus cross-tolerance to other GABAergic drugs including benzodiazepines, anesthetics, and neurosteroids, especially sedative-hypnotic effects...
September 20, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28929966/-a-case-with-scalp-pruritus-caused-by-dermanysus-gallinae-order-mesostigmata
#10
Mustafa Şengül, Nida Kaçar, Mehmet Karaca, Sedef Zeliha Öner, Çağrı Ergin
Dermanyssus gallinae is one of the important hematophagous ectoparasite species of poultry like chicken, pigeon and wild bird species. These ectoparasites in the form of nymphs or adults who can not find their hosts are also seen in mammals and even in humans. For this reason, they are considered as important for public health. The ectoparasite causes a clinical condition named gamasoidosis among pet owners and people who live or work close to animal shelters, barns and chicken farms. Pruritus dermatitis is also caused by D...
July 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28921469/microbial-factors-in-inflammatory-diseases-and-cancers
#11
Hong Sheng Ong, Howard Chi Ho Yim
The intestinal microbes form a symbiotic relationship with their human host to harvest energy for themselves and their host and to shape the immune system of their host. However, alteration of this relationship, which is named as a dysbiosis, has been associated with the development of different inflammatory diseases and cancers. It is found that metabolites, cellular components, and virulence factors derived from the gut microbiota interact with the host locally or systemically to modulate the dysbiosis and the development of these diseases...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28895792/rash-impulsiveness-and-negative-mood-but-not-alexithymia-or-reward-sensitivity-differentiate-young-to-middle-aged-chronic-daily-smokers-from-never-smokers
#12
Michael Lyvers, Monique Bremner, Mark S Edwards, Fred Arne Thorberg
Given the well-established associations of the personality traits alexithymia, impulsivity, and reward sensitivity with problematic use of a variety of substances, including alcohol and cannabis, the present study sought to determine whether daily tobacco smoking is similarly linked to these traits. Male and female adults aged 18 to 40 years were recruited from the local Australian community, allowing comparison of demographically similar samples of current daily smokers (n = 47) to never-smokers (n = 59) on the relevant self-report measures...
September 12, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28887301/the-phospholipase-pnpla7-functions-as-a-lysophosphatidylcholine-hydrolase-and-interacts-with-lipid-droplets-through-its-catalytic-domain
#13
Christoph Heier, Benedikt Kien, Feifei Huang, Thomas O Eichmann, Hao Xie, Rudolf Zechner, Ping-An Chang
Mammalian patatin-like phospholipase domain containing proteins (PNPLAs) are lipid metabolizing enzymes with essential roles in energy metabolism, skin barrier development, and brain function. A detailed annotation of enzymatic activities and structure-function relationships remains an important prerequisite to understand PNPLA functions in (patho-)physiology, for example, in disorders such as neutral lipid storage disease, non-alcoholic fatty liver disease, and neurodegenerative syndromes. In this study, we characterized the structural features controlling the subcellular localization and enzymatic activity of PNPLA7, a poorly annotated phospholipase linked to insulin signaling and energy metabolism...
September 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28818508/the-role-of-the-il-8-signaling-pathway-in-the-infiltration-of-granulocytes-into-the-livers-of-patients-with-alcoholic-hepatitis
#14
S W French, A S Mendoza, N Afifiyan, B Tillman, E Vitocruz, B A French
BACKGROUND AND AIM: IL-8 (C-X-L motif chemokine ligase 8) and CXCR2 (C-X-C-motif chemokine receptor 2) are up regulated in alcoholic hepatitis (AH) liver biopsies. One of the consequences is the attraction and chemotactic neutrophilic infiltrate seen at the AH stage of alcoholic liver disease. MATERIALS AND METHODS: Human formalin-fixed, paraffin-embedded (FFPE) liver biopsies from patients who have AH were studied by (2.1) RNA sequencing, (2.2) PCR and (2.3) semi quantitation of specific proteins in biopsy sections using immunohistochemical measurements of antibody fluorescent intensity with morphometric technology...
August 14, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28802862/microrna-21-expression-in-oligodendrocytes-and-correlation-with-low-myelin-mrnas-in-depression-and-alcoholism
#15
José Javier Miguel-Hidalgo, Katherine O Hall, Hannah Bonner, Anna M Roller, Maryam Syed, Casey J Park, Jana P Ball, Marc E Rothenberg, Craig A Stockmeier, Damian G Romero
MiR-21 is a microRNA implicated in cancer, development, and cardiovascular diseases and expressed in the central nervous system (CNS), especially after injury. However, the cellular expression of miR-21 in the adult CNS has not been clearly established either in mice or human subjects, while its alteration in psychiatric disorders is unknown. MiR-21 expression was characterized in reporter mice expressing β-galactosidase (LacZ) under the endogenous miR-21 promoter (miR-21/LacZ). Brain co-localization of miR-21/LacZ with specific neural markers was examined by double immunofluorescence in reporter mice, while extent of immunostaining for myelin basic protein and PDGFRα was determined in miR-21 knockout and wild-type mice...
October 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28738291/inflammation-responsive-self-regulated-drug-release-from-ultrathin-hydrogel-coating
#16
Min He, Qian Wang, Zhenqiang Shi, Yi Xie, Weifeng Zhao, Changsheng Zhao
Heterotopic ossification(HO) is a potential severe complication after many biomaterial implanting surgeries, and the inflammation environment caused by the implanting-associated infections is considered as the main nosogenesis. Herein, an inflammation-responsive drug release system was designed by chemically conjugating indometacin (via ester group) onto hydrogel coating to realize local self-regulated drug release to prevent HO. In our strategy, poly(3-mercaptopropyl)trimethoxysilane-co-acrylic acrylate and polyvinyl alcohol (providing anchoring sites for drug molecules) were firstly synthesized and functionalized with ene-groups, then a hydrogel layer was formed and covalently attached onto thiol-modified substrate via thiol-ene click chemistry, followed by grafting indometacin...
October 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28735060/individual-roles-of-brain-and-serum-alcohol-dehydrogenase-isoforms-in-regulation-of-alcohol-consumption-in-spf-wistar-rats
#17
Vsevolod V Pavshintsev, Nikita A Mitkin, Olga Y Frolova, Ekaterina A Kushnir, Olga A Averina, Maxim L Lovat
Alcohol dehydrogenases (ADH) are key enzymes of ethanol metabolism that mediate its oxidation to acetaldehyde. ADHs are also able to oxidize some types of neurotransmitters such as dopamine, serotonin and norepinephrine. Increased level of ADHs activity, induced by chronic alcohol consumption, is presumably associated with disturbed neurotransmitters metabolism that leads to stable alcohol craving. As earlier reported, intraperitoneal administration of 4-methilpirasole (non-specific inhibitor of ADHs) has shown to provide a short-term anti-alcoholic effect, but individual roles of ADH isoforms in this process were still unclear...
July 20, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28682229/-epigenetic-mechanisms-and-alcohol-use-disorders-a-potential-therapeutic-target
#18
Rémi Legastelois, Jérôme Jeanblanc, Catherine Vilpoux, Erika Bourguet, Mickael Naassila
Alcohol use disorder is a devastating illness with a profound health impact, and its development is dependent on both genetic and environmental factors. This disease occurs over time and requires changes in brain gene expression. There is converging evidence suggesting that the epigenetic processes may play a role in the alcohol-induced gene regulations and behavior such as the intervention of DNA methylation and histone acetylation. Histone acetylation, like histone methylation, is a highly dynamic process regulated by two classes of enzymes: histone acetyltransferases and histone deacetylases (HDACs)...
2017: Biologie Aujourd'hui
https://www.readbyqxmd.com/read/28673698/restaurant-menu-labeling-laws-and-alcohol-use
#19
Brandon J Restrepo, Mir M Ali
The goal of this study was to analyze the effect of local and state mandatory restaurant menu labeling laws on alcohol use. Using a difference-in-differences estimation approach and data on adults aged 21 and older (n=2,157,722) from the 2002-2012 Behavioral Risk Factor Surveillance System, we estimated the effect of menu labeling laws on self-reported consumption of alcoholic beverages in the past month. The regression analysis indicates that on average implementation of menu labeling laws is associated with a 1...
September 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28664666/judicial-intervention-in-alcohol-regulation-an-empirical-legal-analysis
#20
Janani Muhunthan, Blake Angell, Andrew Wilson, Belinda Reeve, Stephen Jan
OBJECTIVE: While governments draft law and policy to promote public health, it is through cases put before the judiciary that the implementation of law can be challenged and where its practical implications are typically determined. In this paper, we examine the role of court judgements on efforts in Australia to regulate the harmful use of alcohol. METHODS: Australian case law (2010 to June 2015) involving the judicial review of administrative decisions relating to development applications or liquor licences for retail liquor outlets (bottle shops), hotels, pubs and clubs was identified using a case law database (WestLaw AU)...
June 29, 2017: Australian and New Zealand Journal of Public Health
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