Downregulation of microRNA-448 improves isoflurane-induced learning and memory impairment in rats

The present study aimed to investigate the potential role of microRNA-448 (miR-448) in isoflurane-induced learning and memory impairment in rats. Sprague-Dawley rats were used for the construction of isoflurane-treated models. The Morris water maze test was used to evaluate the effects of isoflurane...

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Veröffentlicht in:Molecular medicine reports 2017-08, Vol.16 (2), p.1578-1583
Hauptverfasser: Wu, Qun, Dai, Qinxue, Jiang, Liuming, Wang, Yichuan, Yang, Tao, Miao, Jianxia, Wang, Junlu, Han, Yu
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container_issue 2
container_start_page 1578
container_title Molecular medicine reports
container_volume 16
creator Wu, Qun
Dai, Qinxue
Jiang, Liuming
Wang, Yichuan
Yang, Tao
Miao, Jianxia
Wang, Junlu
Han, Yu
description The present study aimed to investigate the potential role of microRNA-448 (miR-448) in isoflurane-induced learning and memory impairment in rats. Sprague-Dawley rats were used for the construction of isoflurane-treated models. The Morris water maze test was used to evaluate the effects of isoflurane on rats regarding the following parameters: Swimming speed, escape latency and time in original quadrant. Influences of isoflurane on neuron apoptosis and miR-448 expression in rat hippocampus tissue were analyzed by flow cytometry and reverse transcription-quantitative polymerase chain reaction, respectively. Furthermore, the effects of miR-448 on the expression of cell apoptosis-associated proteins were investigated by flow cytometry. The results demonstrated that isoflurane treatment induced higher escape latency and lower time spent in original quadrant compared with the control rats. In addition, isoflurane treatment induced neuron apoptosis and miR-448 was highly expressed in the hippocampal tissue of isoflurane-treated rats. Furthermore, Bcl-x was significantly downregulated while caspase-3 expression was upregulated by an miR-448 inhibitor. Combined the results of the current study indicate that miR-448 knockdown may have pivotal roles in improving isoflurane-induced learning and memory impairment via suppressing neuron apoptosis.
doi_str_mv 10.3892/mmr.2017.6724
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Sprague-Dawley rats were used for the construction of isoflurane-treated models. The Morris water maze test was used to evaluate the effects of isoflurane on rats regarding the following parameters: Swimming speed, escape latency and time in original quadrant. Influences of isoflurane on neuron apoptosis and miR-448 expression in rat hippocampus tissue were analyzed by flow cytometry and reverse transcription-quantitative polymerase chain reaction, respectively. Furthermore, the effects of miR-448 on the expression of cell apoptosis-associated proteins were investigated by flow cytometry. The results demonstrated that isoflurane treatment induced higher escape latency and lower time spent in original quadrant compared with the control rats. In addition, isoflurane treatment induced neuron apoptosis and miR-448 was highly expressed in the hippocampal tissue of isoflurane-treated rats. Furthermore, Bcl-x was significantly downregulated while caspase-3 expression was upregulated by an miR-448 inhibitor. Combined the results of the current study indicate that miR-448 knockdown may have pivotal roles in improving isoflurane-induced learning and memory impairment via suppressing neuron apoptosis.</description><identifier>ISSN: 1791-2997</identifier><identifier>EISSN: 1791-3004</identifier><identifier>DOI: 10.3892/mmr.2017.6724</identifier><identifier>PMID: 29067448</identifier><language>eng</language><publisher>Greece: D.A. Spandidos</publisher><subject>Alzheimer's disease ; Anesthesia ; Animal models ; Animals ; Antagomirs - metabolism ; Apoptosis ; Apoptosis - drug effects ; bcl-2-Associated X Protein - metabolism ; Bcl-x protein ; Care and treatment ; Caspase ; Caspase 3 - metabolism ; Caspase-3 ; cell apoptosis ; Cells, Cultured ; Cognitive disorders ; Complications and side effects ; Down-Regulation ; Flow cytometry ; Gene expression ; Genetic aspects ; Genetic regulation ; Health aspects ; Hippocampus ; Hippocampus - cytology ; Hippocampus - drug effects ; Hippocampus - metabolism ; Isoflurane ; Isoflurane - pharmacology ; Laboratory animals ; Latency ; Learning ; learning and memory impairment ; Male ; Maze Learning - drug effects ; Memory ; Memory - drug effects ; MicroRNA ; microRNA-448 ; MicroRNAs - antagonists &amp; inhibitors ; MicroRNAs - genetics ; MicroRNAs - metabolism ; miRNA ; Neurons ; Polymerase chain reaction ; Properties ; Proteins ; Rats ; Rats, Sprague-Dawley ; Reverse transcription ; Rodents ; Studies ; Swimming</subject><ispartof>Molecular medicine reports, 2017-08, Vol.16 (2), p.1578-1583</ispartof><rights>Copyright © 2017, Spandidos Publications</rights><rights>COPYRIGHT 2017 Spandidos Publications</rights><rights>Copyright Spandidos Publications UK Ltd. 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c525t-bc063f5fafef947c57f45d0974166155f5342d480cd9bbb7ed8400765eeeec383</citedby><cites>FETCH-LOGICAL-c525t-bc063f5fafef947c57f45d0974166155f5342d480cd9bbb7ed8400765eeeec383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,5571,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29067448$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Qun</creatorcontrib><creatorcontrib>Dai, Qinxue</creatorcontrib><creatorcontrib>Jiang, Liuming</creatorcontrib><creatorcontrib>Wang, Yichuan</creatorcontrib><creatorcontrib>Yang, Tao</creatorcontrib><creatorcontrib>Miao, Jianxia</creatorcontrib><creatorcontrib>Wang, Junlu</creatorcontrib><creatorcontrib>Han, Yu</creatorcontrib><title>Downregulation of microRNA-448 improves isoflurane-induced learning and memory impairment in rats</title><title>Molecular medicine reports</title><addtitle>Mol Med Rep</addtitle><description>The present study aimed to investigate the potential role of microRNA-448 (miR-448) in isoflurane-induced learning and memory impairment in rats. Sprague-Dawley rats were used for the construction of isoflurane-treated models. The Morris water maze test was used to evaluate the effects of isoflurane on rats regarding the following parameters: Swimming speed, escape latency and time in original quadrant. Influences of isoflurane on neuron apoptosis and miR-448 expression in rat hippocampus tissue were analyzed by flow cytometry and reverse transcription-quantitative polymerase chain reaction, respectively. Furthermore, the effects of miR-448 on the expression of cell apoptosis-associated proteins were investigated by flow cytometry. The results demonstrated that isoflurane treatment induced higher escape latency and lower time spent in original quadrant compared with the control rats. In addition, isoflurane treatment induced neuron apoptosis and miR-448 was highly expressed in the hippocampal tissue of isoflurane-treated rats. Furthermore, Bcl-x was significantly downregulated while caspase-3 expression was upregulated by an miR-448 inhibitor. Combined the results of the current study indicate that miR-448 knockdown may have pivotal roles in improving isoflurane-induced learning and memory impairment via suppressing neuron apoptosis.</description><subject>Alzheimer's disease</subject><subject>Anesthesia</subject><subject>Animal models</subject><subject>Animals</subject><subject>Antagomirs - metabolism</subject><subject>Apoptosis</subject><subject>Apoptosis - drug effects</subject><subject>bcl-2-Associated X Protein - metabolism</subject><subject>Bcl-x protein</subject><subject>Care and treatment</subject><subject>Caspase</subject><subject>Caspase 3 - metabolism</subject><subject>Caspase-3</subject><subject>cell apoptosis</subject><subject>Cells, Cultured</subject><subject>Cognitive disorders</subject><subject>Complications and side effects</subject><subject>Down-Regulation</subject><subject>Flow cytometry</subject><subject>Gene expression</subject><subject>Genetic aspects</subject><subject>Genetic regulation</subject><subject>Health aspects</subject><subject>Hippocampus</subject><subject>Hippocampus - cytology</subject><subject>Hippocampus - drug effects</subject><subject>Hippocampus - metabolism</subject><subject>Isoflurane</subject><subject>Isoflurane - pharmacology</subject><subject>Laboratory animals</subject><subject>Latency</subject><subject>Learning</subject><subject>learning and memory impairment</subject><subject>Male</subject><subject>Maze Learning - drug effects</subject><subject>Memory</subject><subject>Memory - drug effects</subject><subject>MicroRNA</subject><subject>microRNA-448</subject><subject>MicroRNAs - antagonists &amp; inhibitors</subject><subject>MicroRNAs - genetics</subject><subject>MicroRNAs - metabolism</subject><subject>miRNA</subject><subject>Neurons</subject><subject>Polymerase chain reaction</subject><subject>Properties</subject><subject>Proteins</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Reverse transcription</subject><subject>Rodents</subject><subject>Studies</subject><subject>Swimming</subject><issn>1791-2997</issn><issn>1791-3004</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNptkctrHSEYxYfS0jzaZbdF6KLZeKMzPsblJX0FQgOlXYsz6sUw6q3OpOS_7zfc25SW6EKR33c8nNM0byjZdL1qL2Msm5ZQuRGyZc-aUyoVxR0h7Pnx3iolT5qzWu8IEbzl6mVz0ioiJGP9aWM-5F-puN0ymTnkhLJHMYwlf_u6xQCgEPcl37uKQs1-WopJDodkl9FZNDlTUkg7ZJJF0cVcHlbehBJdmlFIqJi5vmpeeDNV9_p4njc_Pn38fvUF39x-vr7a3uARTM14GInoPPfGO6-YHLn0jFuiJKNCUM4971hrWU9Gq4ZhkM72jBApuIM1dn133lwcdMHwz8XVWcdQRzdNYDkvVVPFuaBCMQLou__Qu7yUBO6AEhARfMX-UjszOR2Sz3Mx4yqqt5ywjlHWKqA2T1CwrYMgc3I-wPs_A_gwACnXWpzX-xKiKQ-aEr1WqqFSvVaq10qBf3s0uwzR2Uf6T4cAvD8AdQ9FBJvrIwNKmApMWky57LvfSPGoCg</recordid><startdate>20170801</startdate><enddate>20170801</enddate><creator>Wu, Qun</creator><creator>Dai, Qinxue</creator><creator>Jiang, Liuming</creator><creator>Wang, Yichuan</creator><creator>Yang, Tao</creator><creator>Miao, Jianxia</creator><creator>Wang, Junlu</creator><creator>Han, Yu</creator><general>D.A. Spandidos</general><general>Spandidos Publications</general><general>Spandidos Publications UK Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AN0</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope></search><sort><creationdate>20170801</creationdate><title>Downregulation of microRNA-448 improves isoflurane-induced learning and memory impairment in rats</title><author>Wu, Qun ; 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Sprague-Dawley rats were used for the construction of isoflurane-treated models. The Morris water maze test was used to evaluate the effects of isoflurane on rats regarding the following parameters: Swimming speed, escape latency and time in original quadrant. Influences of isoflurane on neuron apoptosis and miR-448 expression in rat hippocampus tissue were analyzed by flow cytometry and reverse transcription-quantitative polymerase chain reaction, respectively. Furthermore, the effects of miR-448 on the expression of cell apoptosis-associated proteins were investigated by flow cytometry. The results demonstrated that isoflurane treatment induced higher escape latency and lower time spent in original quadrant compared with the control rats. In addition, isoflurane treatment induced neuron apoptosis and miR-448 was highly expressed in the hippocampal tissue of isoflurane-treated rats. Furthermore, Bcl-x was significantly downregulated while caspase-3 expression was upregulated by an miR-448 inhibitor. Combined the results of the current study indicate that miR-448 knockdown may have pivotal roles in improving isoflurane-induced learning and memory impairment via suppressing neuron apoptosis.</abstract><cop>Greece</cop><pub>D.A. Spandidos</pub><pmid>29067448</pmid><doi>10.3892/mmr.2017.6724</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
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source Spandidos Publications Journals; MEDLINE; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Alzheimer's disease
Anesthesia
Animal models
Animals
Antagomirs - metabolism
Apoptosis
Apoptosis - drug effects
bcl-2-Associated X Protein - metabolism
Bcl-x protein
Care and treatment
Caspase
Caspase 3 - metabolism
Caspase-3
cell apoptosis
Cells, Cultured
Cognitive disorders
Complications and side effects
Down-Regulation
Flow cytometry
Gene expression
Genetic aspects
Genetic regulation
Health aspects
Hippocampus
Hippocampus - cytology
Hippocampus - drug effects
Hippocampus - metabolism
Isoflurane
Isoflurane - pharmacology
Laboratory animals
Latency
Learning
learning and memory impairment
Male
Maze Learning - drug effects
Memory
Memory - drug effects
MicroRNA
microRNA-448
MicroRNAs - antagonists & inhibitors
MicroRNAs - genetics
MicroRNAs - metabolism
miRNA
Neurons
Polymerase chain reaction
Properties
Proteins
Rats
Rats, Sprague-Dawley
Reverse transcription
Rodents
Studies
Swimming
title Downregulation of microRNA-448 improves isoflurane-induced learning and memory impairment in rats
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