
You have already added 0 works in your ORCID record related to the merged Research product.
You have already added 0 works in your ORCID record related to the merged Research product.
<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=undefined&type=result"></script>');
-->
</script>
A Retinoic Acid Receptor Antagonist Suppresses Brain Retinoic Acid Receptor Overexpression and Reverses a Working Memory Deficit Induced by Chronic Ethanol Consumption in Mice

Background: Chronic ethanol consumption induces disorders in the biosynthesis of retinoic acid, an active derivative of vitamin A. Recent evidence suggests that an alteration in the retinoic acid signaling pathway leads to impairments in learning and memory in adult mice. We have previously shown that chronic ethanol consumption in mice produces an increased expression of the brain retinoic acid receptor β (RARβ) mRNA. These results prompted us to examine whether suppressing the overexpression of retinoid receptors in alcohol‐treated mice by RAR antagonist administration would reverse their cognitive impairment.Methods: After 10 months of ethanol consumption (12% v/v in drinking water), C57BL/6 mice were submitted to a working memory task in a T‐maze. Then, mice of the control and the ethanol‐treated groups received an RARβ antagonist (CD2665 0.6 mg/kg) for 22 days. The behavioral effect of CD2665 administration was evaluated on a spontaneous alternation task and the neurochemical effect was measured by quantifying the mRNA expression of RARα, RARβ, retinoid X receptor (RXRβ/γ) and tissue transglutaminase (tTG; a retinoic acid‐target gene).Results: Mice submitted to ethanol treatment exhibited a progressive decrease in spontaneous alternation rates over successive trials. Moreover, these mice displayed an increased expression of brain RARβ and RXRβ/γ mRNA, together with an increased level of tTG mRNA and enzymatic activity. The administration of CD2665 to alcohol‐treated mice totally reversed the working memory deficit and suppressed the overexpression of brain RARβ, RXRβ/γ and tTG mRNA, whereas the same treatment in control mice decreased only the RARβ mRNA level without affecting memory performance.Conclusion: These data point to the potential role of the retinoid signaling pathway in memory processes and suggest that the overexpression of brain RARβ and RXRβ/γ could be responsible, at least in part, for some memory impairments observed during chronic ethanol consumption.
Male, Time Factors, Receptors, Retinoic Acid, [SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, Messenger, Retinoic Acid, [SDV.NEU.PC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, MESH: Protein Isoforms, Inbred C57BL, Weight Gain, Mice, Reference Values, MESH: Receptors, Protein Isoforms, MESH: Animals, Nutritional Physiological Phenomena, MESH: Memory, [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, MESH: Reference Values, [SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Brain, MESH: Transcription Factors, MESH: Memory Disorders, MESH: Transglutaminases, MESH: Weight Gain, MESH: Retinoid X Receptors, MESH: Ethanol, Alcohol Drinking, MESH: Brain, MESH: RNA, MESH: Mice, Inbred C57BL, Memory, Animals, RNA, Messenger, MESH: Nutritional Physiological Phenomena, MESH: Mice, MESH: RNA, Messenger, MESH: Receptors, Retinoic Acid, Memory Disorders, Transglutaminases, Ethanol, MESH: Time Factors, [SDV.NEU.NB] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, MESH: Male, Mice, Inbred C57BL, Retinoid X Receptors, MESH: Alcohol Drinking, [SDV.NEU.SC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Transcription Factors, mesh: mesh:Retinoid X Receptors, mesh: mesh:Memory, mesh: mesh:Protein Isoforms, mesh: mesh:Mice, mesh: mesh:Alcohol Drinking, mesh: mesh:Transglutaminases, mesh: mesh:Weight Gain, mesh: mesh:Nutritional Physiological Phenomena, mesh: mesh:Brain, mesh: mesh:Receptors, Retinoic Acid, mesh: mesh:Transcription Factors, mesh: mesh:Ethanol, mesh: mesh:Memory Disorders, mesh: mesh:Mice, Inbred C57BL, mesh: mesh:Reference Values, mesh: mesh:RNA, Messenger, mesh: mesh:Male, mesh: mesh:Animals, mesh: mesh:Time Factors
Male, Time Factors, Receptors, Retinoic Acid, [SDV.NEU.NB]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, Messenger, Retinoic Acid, [SDV.NEU.PC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, MESH: Protein Isoforms, Inbred C57BL, Weight Gain, Mice, Reference Values, MESH: Receptors, Protein Isoforms, MESH: Animals, Nutritional Physiological Phenomena, MESH: Memory, [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior, MESH: Reference Values, [SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Brain, MESH: Transcription Factors, MESH: Memory Disorders, MESH: Transglutaminases, MESH: Weight Gain, MESH: Retinoid X Receptors, MESH: Ethanol, Alcohol Drinking, MESH: Brain, MESH: RNA, MESH: Mice, Inbred C57BL, Memory, Animals, RNA, Messenger, MESH: Nutritional Physiological Phenomena, MESH: Mice, MESH: RNA, Messenger, MESH: Receptors, Retinoic Acid, Memory Disorders, Transglutaminases, Ethanol, MESH: Time Factors, [SDV.NEU.NB] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Neurobiology, MESH: Male, Mice, Inbred C57BL, Retinoid X Receptors, MESH: Alcohol Drinking, [SDV.NEU.SC] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, Transcription Factors, mesh: mesh:Retinoid X Receptors, mesh: mesh:Memory, mesh: mesh:Protein Isoforms, mesh: mesh:Mice, mesh: mesh:Alcohol Drinking, mesh: mesh:Transglutaminases, mesh: mesh:Weight Gain, mesh: mesh:Nutritional Physiological Phenomena, mesh: mesh:Brain, mesh: mesh:Receptors, Retinoic Acid, mesh: mesh:Transcription Factors, mesh: mesh:Ethanol, mesh: mesh:Memory Disorders, mesh: mesh:Mice, Inbred C57BL, mesh: mesh:Reference Values, mesh: mesh:RNA, Messenger, mesh: mesh:Male, mesh: mesh:Animals, mesh: mesh:Time Factors
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).29 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
