Propolis alleviates 2,3,7,8-Tetrachlorodibenzo-p-dioxin-induced histological changes, oxidative stress and DNA damage in rat liver

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) induces hepatic damage. Propolis exhibits antioxidant properties and several studies suggest that supplementations with antioxidants can influence hepatotoxicity. Therefore, the aim of the current study was to explore the effectiveness of propolis in allevi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Toxicology and industrial health 2013-09, Vol.29 (8), p.677-685
Hauptverfasser: Türkez, Hasan, Geyikoğlu, Fatime, Yousef, Mokhtar I, Toğar, Basak, Vançelik, Serhat
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 685
container_issue 8
container_start_page 677
container_title Toxicology and industrial health
container_volume 29
creator Türkez, Hasan
Geyikoğlu, Fatime
Yousef, Mokhtar I
Toğar, Basak
Vançelik, Serhat
description 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) induces hepatic damage. Propolis exhibits antioxidant properties and several studies suggest that supplementations with antioxidants can influence hepatotoxicity. Therefore, the aim of the current study was to explore the effectiveness of propolis in alleviating the toxicity of TCDD in the liver of rats. Animals were divided into six groups, namely, TCDD (0.75 and 8 µg/kg body weight (bw)), propolis (50 mg/kg bw), TCDD (0.75 and 8 µg) plus propolis (50 mg/kg bw), and control, respectively. Rats were intraperitoneally administered with their respective doses daily for 21 days. In rats that received a high dose of TCDD, the antioxidant enzymes were significantly decreased and the serious pathological findings were established. Also, the rate of hepatocyte micronucleus (HMN) was increased after treating with TCDD. The reactions of enzymes in control and low-dose group were weak. The frequencies of HMN and liver histology were similar to both the groups. The presence of propolis with TCDD alleviated its pathological effects in hepatic tissue. Propolis also prevented the suppression of antioxidant enzymes in the livers of animals exposed to TCDD and displayed a strong protective effect against HMN. It can be concluded that propolis has beneficial influences and was able to antagonize TCDD toxicity in the liver.
doi_str_mv 10.1177/0748233712440139
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1439236879</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sage_id>10.1177_0748233712440139</sage_id><sourcerecordid>3063256831</sourcerecordid><originalsourceid>FETCH-LOGICAL-c398t-c9ea965a78460d524dfd80c818079115c022ce7cd48d5b9f9a58340d7d4fa3543</originalsourceid><addsrcrecordid>eNqNkb1vFDEQxS0EIkegp0KWaCjOwZ9ru4wCAaQIKEK98tmzd45868PejQIlf3l8XEBRJCSqKd7vvdHMQ-gloyeMaf2Wamm4EJpxKSkT9hFaMKk1ocKKx2ixl8leP0LPar2ilHad4k_REeey2bVcoF9fS97lFCt2KcF1dBNUzJdiqZeGXMJUnN-kXHKIKxh_ZrIjIeabOJI4htlDwJtYp5zyOnqXsN-4cQ11iRsS3BSvAdepQG3pY8DvPp_i4LZuDTiOuLgJp0aU5-jJ4FKFF3fzGH07f3959pFcfPnw6ez0gnhhzUS8BWc75bSRHQ2KyzAEQ71hhmrLmPKUcw_aB2mCWtnBOmWEpEEHOTihpDhGbw65u5K_z1Cnfhurh5TcCHmuPZPCctEZbf8HpUYqq3lDXz9Ar_JcxnbIb4oryu1-Nz1QvuRaCwz9rsStKz96Rvt9lf3DKpvl1V3wvNpC-Gv4010DyAGo7aP3tv4r8Ba9MqTA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1430250294</pqid></control><display><type>article</type><title>Propolis alleviates 2,3,7,8-Tetrachlorodibenzo-p-dioxin-induced histological changes, oxidative stress and DNA damage in rat liver</title><source>MEDLINE</source><source>SAGE Complete</source><creator>Türkez, Hasan ; Geyikoğlu, Fatime ; Yousef, Mokhtar I ; Toğar, Basak ; Vançelik, Serhat</creator><creatorcontrib>Türkez, Hasan ; Geyikoğlu, Fatime ; Yousef, Mokhtar I ; Toğar, Basak ; Vançelik, Serhat</creatorcontrib><description>2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) induces hepatic damage. Propolis exhibits antioxidant properties and several studies suggest that supplementations with antioxidants can influence hepatotoxicity. Therefore, the aim of the current study was to explore the effectiveness of propolis in alleviating the toxicity of TCDD in the liver of rats. Animals were divided into six groups, namely, TCDD (0.75 and 8 µg/kg body weight (bw)), propolis (50 mg/kg bw), TCDD (0.75 and 8 µg) plus propolis (50 mg/kg bw), and control, respectively. Rats were intraperitoneally administered with their respective doses daily for 21 days. In rats that received a high dose of TCDD, the antioxidant enzymes were significantly decreased and the serious pathological findings were established. Also, the rate of hepatocyte micronucleus (HMN) was increased after treating with TCDD. The reactions of enzymes in control and low-dose group were weak. The frequencies of HMN and liver histology were similar to both the groups. The presence of propolis with TCDD alleviated its pathological effects in hepatic tissue. Propolis also prevented the suppression of antioxidant enzymes in the livers of animals exposed to TCDD and displayed a strong protective effect against HMN. It can be concluded that propolis has beneficial influences and was able to antagonize TCDD toxicity in the liver.</description><identifier>ISSN: 0748-2337</identifier><identifier>EISSN: 1477-0393</identifier><identifier>DOI: 10.1177/0748233712440139</identifier><identifier>PMID: 22417774</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Animals ; Antioxidants ; Antioxidants - pharmacology ; Biology ; Chemical and Drug Induced Liver Injury - drug therapy ; Dioxins ; DNA damage ; DNA Damage - drug effects ; Dose-Response Relationship, Drug ; Drug dosages ; Enzymes ; Flavonoids ; Free radicals ; Hepatocytes - drug effects ; Histopathology ; Laboratory animals ; Liver ; Liver - drug effects ; Liver - pathology ; Male ; Oxidative stress ; Oxidative Stress - drug effects ; Polychlorinated Dibenzodioxins - toxicity ; Propolis - pharmacology ; Rats ; Rats, Sprague-Dawley ; Toxicity ; Toxicology</subject><ispartof>Toxicology and industrial health, 2013-09, Vol.29 (8), p.677-685</ispartof><rights>The Author(s) 2012</rights><rights>SAGE Publications © Sep 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-c9ea965a78460d524dfd80c818079115c022ce7cd48d5b9f9a58340d7d4fa3543</citedby><cites>FETCH-LOGICAL-c398t-c9ea965a78460d524dfd80c818079115c022ce7cd48d5b9f9a58340d7d4fa3543</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1177/0748233712440139$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1177/0748233712440139$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21819,27924,27925,43621,43622</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22417774$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Türkez, Hasan</creatorcontrib><creatorcontrib>Geyikoğlu, Fatime</creatorcontrib><creatorcontrib>Yousef, Mokhtar I</creatorcontrib><creatorcontrib>Toğar, Basak</creatorcontrib><creatorcontrib>Vançelik, Serhat</creatorcontrib><title>Propolis alleviates 2,3,7,8-Tetrachlorodibenzo-p-dioxin-induced histological changes, oxidative stress and DNA damage in rat liver</title><title>Toxicology and industrial health</title><addtitle>Toxicol Ind Health</addtitle><description>2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) induces hepatic damage. Propolis exhibits antioxidant properties and several studies suggest that supplementations with antioxidants can influence hepatotoxicity. Therefore, the aim of the current study was to explore the effectiveness of propolis in alleviating the toxicity of TCDD in the liver of rats. Animals were divided into six groups, namely, TCDD (0.75 and 8 µg/kg body weight (bw)), propolis (50 mg/kg bw), TCDD (0.75 and 8 µg) plus propolis (50 mg/kg bw), and control, respectively. Rats were intraperitoneally administered with their respective doses daily for 21 days. In rats that received a high dose of TCDD, the antioxidant enzymes were significantly decreased and the serious pathological findings were established. Also, the rate of hepatocyte micronucleus (HMN) was increased after treating with TCDD. The reactions of enzymes in control and low-dose group were weak. The frequencies of HMN and liver histology were similar to both the groups. The presence of propolis with TCDD alleviated its pathological effects in hepatic tissue. Propolis also prevented the suppression of antioxidant enzymes in the livers of animals exposed to TCDD and displayed a strong protective effect against HMN. It can be concluded that propolis has beneficial influences and was able to antagonize TCDD toxicity in the liver.</description><subject>Animals</subject><subject>Antioxidants</subject><subject>Antioxidants - pharmacology</subject><subject>Biology</subject><subject>Chemical and Drug Induced Liver Injury - drug therapy</subject><subject>Dioxins</subject><subject>DNA damage</subject><subject>DNA Damage - drug effects</subject><subject>Dose-Response Relationship, Drug</subject><subject>Drug dosages</subject><subject>Enzymes</subject><subject>Flavonoids</subject><subject>Free radicals</subject><subject>Hepatocytes - drug effects</subject><subject>Histopathology</subject><subject>Laboratory animals</subject><subject>Liver</subject><subject>Liver - drug effects</subject><subject>Liver - pathology</subject><subject>Male</subject><subject>Oxidative stress</subject><subject>Oxidative Stress - drug effects</subject><subject>Polychlorinated Dibenzodioxins - toxicity</subject><subject>Propolis - pharmacology</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Toxicity</subject><subject>Toxicology</subject><issn>0748-2337</issn><issn>1477-0393</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</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>eNqNkb1vFDEQxS0EIkegp0KWaCjOwZ9ru4wCAaQIKEK98tmzd45868PejQIlf3l8XEBRJCSqKd7vvdHMQ-gloyeMaf2Wamm4EJpxKSkT9hFaMKk1ocKKx2ixl8leP0LPar2ilHad4k_REeey2bVcoF9fS97lFCt2KcF1dBNUzJdiqZeGXMJUnN-kXHKIKxh_ZrIjIeabOJI4htlDwJtYp5zyOnqXsN-4cQ11iRsS3BSvAdepQG3pY8DvPp_i4LZuDTiOuLgJp0aU5-jJ4FKFF3fzGH07f3959pFcfPnw6ez0gnhhzUS8BWc75bSRHQ2KyzAEQ71hhmrLmPKUcw_aB2mCWtnBOmWEpEEHOTihpDhGbw65u5K_z1Cnfhurh5TcCHmuPZPCctEZbf8HpUYqq3lDXz9Ar_JcxnbIb4oryu1-Nz1QvuRaCwz9rsStKz96Rvt9lf3DKpvl1V3wvNpC-Gv4010DyAGo7aP3tv4r8Ba9MqTA</recordid><startdate>20130901</startdate><enddate>20130901</enddate><creator>Türkez, Hasan</creator><creator>Geyikoğlu, Fatime</creator><creator>Yousef, Mokhtar I</creator><creator>Toğar, Basak</creator><creator>Vançelik, Serhat</creator><general>SAGE Publications</general><general>Sage Publications 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>7QF</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T2</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>7U7</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8BQ</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>H8G</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L6V</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PATMY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>7X8</scope><scope>7TM</scope><scope>7U2</scope></search><sort><creationdate>20130901</creationdate><title>Propolis alleviates 2,3,7,8-Tetrachlorodibenzo-p-dioxin-induced histological changes, oxidative stress and DNA damage in rat liver</title><author>Türkez, Hasan ; Geyikoğlu, Fatime ; Yousef, Mokhtar I ; Toğar, Basak ; Vançelik, Serhat</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-c9ea965a78460d524dfd80c818079115c022ce7cd48d5b9f9a58340d7d4fa3543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Animals</topic><topic>Antioxidants</topic><topic>Antioxidants - pharmacology</topic><topic>Biology</topic><topic>Chemical and Drug Induced Liver Injury - drug therapy</topic><topic>Dioxins</topic><topic>DNA damage</topic><topic>DNA Damage - drug effects</topic><topic>Dose-Response Relationship, Drug</topic><topic>Drug dosages</topic><topic>Enzymes</topic><topic>Flavonoids</topic><topic>Free radicals</topic><topic>Hepatocytes - drug effects</topic><topic>Histopathology</topic><topic>Laboratory animals</topic><topic>Liver</topic><topic>Liver - drug effects</topic><topic>Liver - pathology</topic><topic>Male</topic><topic>Oxidative stress</topic><topic>Oxidative Stress - drug effects</topic><topic>Polychlorinated Dibenzodioxins - toxicity</topic><topic>Propolis - pharmacology</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Toxicity</topic><topic>Toxicology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Türkez, Hasan</creatorcontrib><creatorcontrib>Geyikoğlu, Fatime</creatorcontrib><creatorcontrib>Yousef, Mokhtar I</creatorcontrib><creatorcontrib>Toğar, Basak</creatorcontrib><creatorcontrib>Vançelik, Serhat</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics &amp; Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Health and Safety Science Abstracts (Full archive)</collection><collection>Materials Business File</collection><collection>Mechanical &amp; Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>METADEX</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ANTE: Abstracts in New Technology &amp; Engineering</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts – Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Engineering Database</collection><collection>Environmental Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>MEDLINE - Academic</collection><collection>Nucleic Acids Abstracts</collection><collection>Safety Science and Risk</collection><jtitle>Toxicology and industrial health</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Türkez, Hasan</au><au>Geyikoğlu, Fatime</au><au>Yousef, Mokhtar I</au><au>Toğar, Basak</au><au>Vançelik, Serhat</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Propolis alleviates 2,3,7,8-Tetrachlorodibenzo-p-dioxin-induced histological changes, oxidative stress and DNA damage in rat liver</atitle><jtitle>Toxicology and industrial health</jtitle><addtitle>Toxicol Ind Health</addtitle><date>2013-09-01</date><risdate>2013</risdate><volume>29</volume><issue>8</issue><spage>677</spage><epage>685</epage><pages>677-685</pages><issn>0748-2337</issn><eissn>1477-0393</eissn><abstract>2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) induces hepatic damage. Propolis exhibits antioxidant properties and several studies suggest that supplementations with antioxidants can influence hepatotoxicity. Therefore, the aim of the current study was to explore the effectiveness of propolis in alleviating the toxicity of TCDD in the liver of rats. Animals were divided into six groups, namely, TCDD (0.75 and 8 µg/kg body weight (bw)), propolis (50 mg/kg bw), TCDD (0.75 and 8 µg) plus propolis (50 mg/kg bw), and control, respectively. Rats were intraperitoneally administered with their respective doses daily for 21 days. In rats that received a high dose of TCDD, the antioxidant enzymes were significantly decreased and the serious pathological findings were established. Also, the rate of hepatocyte micronucleus (HMN) was increased after treating with TCDD. The reactions of enzymes in control and low-dose group were weak. The frequencies of HMN and liver histology were similar to both the groups. The presence of propolis with TCDD alleviated its pathological effects in hepatic tissue. Propolis also prevented the suppression of antioxidant enzymes in the livers of animals exposed to TCDD and displayed a strong protective effect against HMN. It can be concluded that propolis has beneficial influences and was able to antagonize TCDD toxicity in the liver.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><pmid>22417774</pmid><doi>10.1177/0748233712440139</doi><tpages>9</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0748-2337
ispartof Toxicology and industrial health, 2013-09, Vol.29 (8), p.677-685
issn 0748-2337
1477-0393
language eng
recordid cdi_proquest_miscellaneous_1439236879
source MEDLINE; SAGE Complete
subjects Animals
Antioxidants
Antioxidants - pharmacology
Biology
Chemical and Drug Induced Liver Injury - drug therapy
Dioxins
DNA damage
DNA Damage - drug effects
Dose-Response Relationship, Drug
Drug dosages
Enzymes
Flavonoids
Free radicals
Hepatocytes - drug effects
Histopathology
Laboratory animals
Liver
Liver - drug effects
Liver - pathology
Male
Oxidative stress
Oxidative Stress - drug effects
Polychlorinated Dibenzodioxins - toxicity
Propolis - pharmacology
Rats
Rats, Sprague-Dawley
Toxicity
Toxicology
title Propolis alleviates 2,3,7,8-Tetrachlorodibenzo-p-dioxin-induced histological changes, oxidative stress and DNA damage in rat liver
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-03T14%3A28%3A44IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Propolis%20alleviates%202,3,7,8-Tetrachlorodibenzo-p-dioxin-induced%20histological%20changes,%20oxidative%20stress%20and%20DNA%20damage%20in%20rat%20liver&rft.jtitle=Toxicology%20and%20industrial%20health&rft.au=T%C3%BCrkez,%20Hasan&rft.date=2013-09-01&rft.volume=29&rft.issue=8&rft.spage=677&rft.epage=685&rft.pages=677-685&rft.issn=0748-2337&rft.eissn=1477-0393&rft_id=info:doi/10.1177/0748233712440139&rft_dat=%3Cproquest_cross%3E3063256831%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1430250294&rft_id=info:pmid/22417774&rft_sage_id=10.1177_0748233712440139&rfr_iscdi=true