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Title:Comparison of ethanol and acetaldehyde toxicity in rat astrocytes in primary culture
Authors:ID Šarc, Lucija (Author)
ID Lipnik-Štangelj, Metoda (Author)
Files:.pdf Archives_of_Industrial_Hygiene_and_Toxicology_2009_Sarc,_Lipnik-Stangelj_Comparison_of_Ethanol_and_Acetaldehyde_Toxicity_in_Rat_Astrocyt.pdf (315,13 KB)
MD5: F7CBD438FF6D34793DDDD3145359DB96
 
URL http://www.degruyter.com/view/j/aiht.2009.60.issue-3/10004-1254-60-2009-1927/10004-1254-60-2009-1927.xml
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:MF - Faculty of Medicine
Abstract:This study compared the effects of toxicity of ethanol and its first metabolite acetaldehyde in rat astrocytes through cell viability and cell proliferation. The cells were treated with different concentrations of ethanol in the presence or absence of a catalase inhibitor 2-amino-1,2,4 triazole (AMT) or with different concentrations of acetaldehyde. Cell viability was assessed using the trypan blue test. Cell proliferation was assessed after 24 hours and after seven days of exposure to either ethanol or acetaldehyde. We showed that both ethanol and acetaldehyde decreased cell viability in a dose-dependent manner. In proliferation studies, after seven days of exposure to either ethanol or acetaldehyde, we observed a significant dose-dependent decrease in cell number. The protein content study showed biphasic dose-response curves, after 24 hours and seven days of exposure to either ethanol or acetaldehyde. Co-incubation in the presence of AMT significantly reduced the inhibitory effect of ethanol on cell proliferation. We concluded that long-term exposure of astrocytes to ethanol is more toxic than acute exposure. Acetaldehyde is a much more potent toxin than ethanol, and at least a part of ethanol toxicity is due to ethanol's first metabolite acetaldehyde.
Keywords:2-amino-1-2-4 triazole, AMT, cell proliferation, cell viability, trypan blue
Publication status:Published
Publication version:Version of Record
Year of publishing:2009
Number of pages:str. 297-305
Numbering:Letn. 60, št. 3
PID:20.500.12556/DKUM-65316 New window
ISSN:0004-1254
UDC:615.9
ISSN on article:0004-1254
COBISS.SI-ID:26576345 New window
NUK URN:URN:SI:UM:DK:GBTTI3US
Publication date in DKUM:30.03.2017
Views:1321
Downloads:439
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Arhiv za higijenu rada i toksikologiju
Shortened title:Arh. hig. rada toksikol.
Publisher:Institut za medicinska istraživanja i medicinu rada
ISSN:0004-1254
COBISS.SI-ID:3833858 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P3-0067
Name:Farmakologija in farmakogenomika

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:30.03.2017

Secondary language

Language:Slovenian
Title:Primerjava toksičnosti etanola in acetaldehida za podganje astrocite v primarni kulturi
Abstract:V študiji smo primerjali toksičnost etanola in njegovega prvega metabolita acetaldehida za podganje astrocite z določitvijo celične viabilnosti in proliferacije. Celične kulture smo tretirali z različnimi koncentracijami etanola, etanola v prisotnosti inhibitorja katalaze 2-amino-1,2,4 triazol-a (AMT) ali z različnimi koncentracijami acetaldehida. Celično viabilnost smo vrednotili s pomočjo testa s tripanskim modrilom, celično proliferacijo pa s štetjem celic in določitvijo koncentracije proteinov po 24-urni, kot tudi 7-dnevni izpostavljenosti. S študijo smo pokazali, da tako etanol kot tudi acetaldehid v odvisnosti od njune koncentracije zmanjšata celično viabilnost. V študiji proliferacije sta etanol in acetaldehid, v odvisnosti od njunih koncentracij, značilno zmanjšala število celic po 7-dnevni izpostavljenosti. Pri ugotavljanju vsebnosti proteinov smo dobili bifazno krivuljo tako po 24-urni, kot tudi po 7-dnevni izpostavljenosti različnim koncentracijam etanola oziroma acetaldehida. Prisotnost AMT je signifikantno zmanjšala učinek etanola na celično proliferacijo. Zaključimo lahko, da je dolgotrajna izpostavljenost astrocitov etanolu bolj toksična kot akutna. Acetaldehid je močnejši toksin kot etanol in vsaj del toksičnosti etanola je posledica delovanja njegovega prvega metabolita, acetaldehida.
Keywords:AMT, proliferacija, tripansko modrilo, viabilnost


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