A mixed cell culture model for assessment of proliferation in tonsillar tissues from children with obstructive sleep apnea or recurrent tonsillitis
Background: Recurrent infective tonsillitis (RI) and obstructive sleep apnea (OSA) are the major indications for adenotonsillectomy (T&A) in children. However, little is known on the determinants of lymphadenoid tissue proliferation in the pediatric upper airway. Objectives: To develop an in vit...
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| Veröffentlicht in: | The Laryngoscope 2009-05, Vol.119 (5), p.1005-1010 |
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| creator | Serpero, Laura D. Kheirandish-Gozal, Leila Dayyat, Ehab Goldman, Julie L. Kim, Jinkwan Gozal, David |
| description | Background:
Recurrent infective tonsillitis (RI) and obstructive sleep apnea (OSA) are the major indications for adenotonsillectomy (T&A) in children. However, little is known on the determinants of lymphadenoid tissue proliferation in the pediatric upper airway.
Objectives:
To develop an in vitro culture system allowing for assessment of tonsillar or adenoidal proliferation under basal or stimulated conditions.
Methods:
Tonsils surgically removed from pediatric patients with obstructive sleep apnea and recurrent tonsillitis during T&A, were dissociated using standard methods. Whole cell tonsillar cultures were either maintained in normal medium or stimulated with lipopolysaccharide (25 μg/mL) and concanavalin A (10 μg/mL) for 24 hours (stimulated conditions [STIM]). Cellular proliferation was evaluated by [3H]thymidine incorporation. In parallel, supernatants were collected after 48 hours, and concentration of cytokines was measured using standard enzyme‐linked immunosorbent assay procedures.
Results:
Basal proliferative rates were increased in the OSA group (305.2 ± 40.6 cpm; n = 31) compared to RI group (232.8 ± 31.9 cpm; n = 26; P < .001). No significant differences in proliferative rates emerged after STIM between OSA and RI. Furthermore, basal TNF‐alpha, IL‐6, and IL‐8 concentrations in the supernatant were increased in OSA‐derived cultures compared to RI, but IL‐8 was higher after STIM in RI, while IL‐6 remained increased in OSA.
Conclusions:
The proliferative rates and concentrations of inflammatory mediators in tonsillar cell cultures from children with OSA and RI suggest that lymphadenoid tissue proliferation in these two conditions may be regulated by different mechanisms. This novel method may allow for future development of specific therapeutic interventions aimed at curtailing and reversing tonsillar and adenoidal hypertrophy in children in a disease‐specific manner. Laryngoscope, 2009 |
| doi_str_mv | 10.1002/lary.20147 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2892471</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>67170402</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4867-fa34a1f7e4436f9566aefd7ea3ca711dda05b13c3a920841d9f0c51ea4e62e8e3</originalsourceid><addsrcrecordid>eNp9kcuOEzEQRS0EYkJgwwcgb2CB1IPdtvuxQYpGENBEIPEQj41VcZeJwd0Odvc8voMfxiEhwIZVLerUrVt1CbnP2SlnrHziIV6flozL-gaZcSV4IdtW3SSz3BRFo8qPJ-ROSl8Z47VQ7DY54W1ZVaqRM_JjQXt3hR016D01kx-niLQPHXpqQ6SQEqbU4zDSYOk2Bu8sRhhdGKgb6BiG5Hw2QEeX0oSJ2hh6ajbOdxEHeunGDQ3rNMbJjO4CafKIWwrbAYFm-YhminGnflByWecuuWXBJ7x3qHPy_vmzd2cvitXr5cuzxaowsqnqwoKQwG2NUorKtqqqAG1XIwgDNeddB0ytuTAC2pI1knetZUZxBIlViQ2KOXm6191O6x47k21E8HobXZ8_qgM4_W9ncBv9JVzosmlLWfMs8OggEMP3fPyoe5d2j4QBw5R0VfOayRzCnDzegyaGlCLa4xLO9C5DvctQ_8owww_-tvUHPYSWgYcHAJIBbyMMxqUjV3KpRMN39vieu3Qer_-zUq8Wbz79Xl7sZ1wa8eo4A_FbvkbUSn94tdTnann-tvrc6Er8BBBgyY0</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>67170402</pqid></control><display><type>article</type><title>A mixed cell culture model for assessment of proliferation in tonsillar tissues from children with obstructive sleep apnea or recurrent tonsillitis</title><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Serpero, Laura D. ; Kheirandish-Gozal, Leila ; Dayyat, Ehab ; Goldman, Julie L. ; Kim, Jinkwan ; Gozal, David</creator><creatorcontrib>Serpero, Laura D. ; Kheirandish-Gozal, Leila ; Dayyat, Ehab ; Goldman, Julie L. ; Kim, Jinkwan ; Gozal, David</creatorcontrib><description>Background:
Recurrent infective tonsillitis (RI) and obstructive sleep apnea (OSA) are the major indications for adenotonsillectomy (T&A) in children. However, little is known on the determinants of lymphadenoid tissue proliferation in the pediatric upper airway.
Objectives:
To develop an in vitro culture system allowing for assessment of tonsillar or adenoidal proliferation under basal or stimulated conditions.
Methods:
Tonsils surgically removed from pediatric patients with obstructive sleep apnea and recurrent tonsillitis during T&A, were dissociated using standard methods. Whole cell tonsillar cultures were either maintained in normal medium or stimulated with lipopolysaccharide (25 μg/mL) and concanavalin A (10 μg/mL) for 24 hours (stimulated conditions [STIM]). Cellular proliferation was evaluated by [3H]thymidine incorporation. In parallel, supernatants were collected after 48 hours, and concentration of cytokines was measured using standard enzyme‐linked immunosorbent assay procedures.
Results:
Basal proliferative rates were increased in the OSA group (305.2 ± 40.6 cpm; n = 31) compared to RI group (232.8 ± 31.9 cpm; n = 26; P < .001). No significant differences in proliferative rates emerged after STIM between OSA and RI. Furthermore, basal TNF‐alpha, IL‐6, and IL‐8 concentrations in the supernatant were increased in OSA‐derived cultures compared to RI, but IL‐8 was higher after STIM in RI, while IL‐6 remained increased in OSA.
Conclusions:
The proliferative rates and concentrations of inflammatory mediators in tonsillar cell cultures from children with OSA and RI suggest that lymphadenoid tissue proliferation in these two conditions may be regulated by different mechanisms. This novel method may allow for future development of specific therapeutic interventions aimed at curtailing and reversing tonsillar and adenoidal hypertrophy in children in a disease‐specific manner. Laryngoscope, 2009</description><identifier>ISSN: 0023-852X</identifier><identifier>EISSN: 1531-4995</identifier><identifier>DOI: 10.1002/lary.20147</identifier><identifier>PMID: 19266584</identifier><identifier>CODEN: LARYA8</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Adenoidectomy ; Adenoids - metabolism ; Adenoids - pathology ; adenotonsillectomy ; Analysis of Variance ; Biological and medical sciences ; Cell Culture Techniques ; Cell Proliferation ; Child ; Child, Preschool ; cytokines ; Cytokines - metabolism ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Hypertrophy ; Male ; Medical sciences ; Obstructive sleep apnea ; Otorhinolaryngology. Stomatology ; Palatine Tonsil - metabolism ; Palatine Tonsil - pathology ; Pneumology ; Recurrence ; recurrent tonsillitis ; Respiratory system : syndromes and miscellaneous diseases ; Sleep Apnea, Obstructive - pathology ; Sleep Apnea, Obstructive - surgery ; tonsillar hypertrophy ; Tonsillectomy ; Tonsillitis - pathology ; Tonsillitis - surgery</subject><ispartof>The Laryngoscope, 2009-05, Vol.119 (5), p.1005-1010</ispartof><rights>Copyright © 2009 The American Laryngological, Rhinological, and Otological Society, Inc.</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4867-fa34a1f7e4436f9566aefd7ea3ca711dda05b13c3a920841d9f0c51ea4e62e8e3</citedby><cites>FETCH-LOGICAL-c4867-fa34a1f7e4436f9566aefd7ea3ca711dda05b13c3a920841d9f0c51ea4e62e8e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Flary.20147$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Flary.20147$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,27903,27904,45553,45554</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21453811$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19266584$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Serpero, Laura D.</creatorcontrib><creatorcontrib>Kheirandish-Gozal, Leila</creatorcontrib><creatorcontrib>Dayyat, Ehab</creatorcontrib><creatorcontrib>Goldman, Julie L.</creatorcontrib><creatorcontrib>Kim, Jinkwan</creatorcontrib><creatorcontrib>Gozal, David</creatorcontrib><title>A mixed cell culture model for assessment of proliferation in tonsillar tissues from children with obstructive sleep apnea or recurrent tonsillitis</title><title>The Laryngoscope</title><addtitle>The Laryngoscope</addtitle><description>Background:
Recurrent infective tonsillitis (RI) and obstructive sleep apnea (OSA) are the major indications for adenotonsillectomy (T&A) in children. However, little is known on the determinants of lymphadenoid tissue proliferation in the pediatric upper airway.
Objectives:
To develop an in vitro culture system allowing for assessment of tonsillar or adenoidal proliferation under basal or stimulated conditions.
Methods:
Tonsils surgically removed from pediatric patients with obstructive sleep apnea and recurrent tonsillitis during T&A, were dissociated using standard methods. Whole cell tonsillar cultures were either maintained in normal medium or stimulated with lipopolysaccharide (25 μg/mL) and concanavalin A (10 μg/mL) for 24 hours (stimulated conditions [STIM]). Cellular proliferation was evaluated by [3H]thymidine incorporation. In parallel, supernatants were collected after 48 hours, and concentration of cytokines was measured using standard enzyme‐linked immunosorbent assay procedures.
Results:
Basal proliferative rates were increased in the OSA group (305.2 ± 40.6 cpm; n = 31) compared to RI group (232.8 ± 31.9 cpm; n = 26; P < .001). No significant differences in proliferative rates emerged after STIM between OSA and RI. Furthermore, basal TNF‐alpha, IL‐6, and IL‐8 concentrations in the supernatant were increased in OSA‐derived cultures compared to RI, but IL‐8 was higher after STIM in RI, while IL‐6 remained increased in OSA.
Conclusions:
The proliferative rates and concentrations of inflammatory mediators in tonsillar cell cultures from children with OSA and RI suggest that lymphadenoid tissue proliferation in these two conditions may be regulated by different mechanisms. This novel method may allow for future development of specific therapeutic interventions aimed at curtailing and reversing tonsillar and adenoidal hypertrophy in children in a disease‐specific manner. Laryngoscope, 2009</description><subject>Adenoidectomy</subject><subject>Adenoids - metabolism</subject><subject>Adenoids - pathology</subject><subject>adenotonsillectomy</subject><subject>Analysis of Variance</subject><subject>Biological and medical sciences</subject><subject>Cell Culture Techniques</subject><subject>Cell Proliferation</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>cytokines</subject><subject>Cytokines - metabolism</subject><subject>Enzyme-Linked Immunosorbent Assay</subject><subject>Female</subject><subject>Humans</subject><subject>Hypertrophy</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Obstructive sleep apnea</subject><subject>Otorhinolaryngology. Stomatology</subject><subject>Palatine Tonsil - metabolism</subject><subject>Palatine Tonsil - pathology</subject><subject>Pneumology</subject><subject>Recurrence</subject><subject>recurrent tonsillitis</subject><subject>Respiratory system : syndromes and miscellaneous diseases</subject><subject>Sleep Apnea, Obstructive - pathology</subject><subject>Sleep Apnea, Obstructive - surgery</subject><subject>tonsillar hypertrophy</subject><subject>Tonsillectomy</subject><subject>Tonsillitis - pathology</subject><subject>Tonsillitis - surgery</subject><issn>0023-852X</issn><issn>1531-4995</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kcuOEzEQRS0EYkJgwwcgb2CB1IPdtvuxQYpGENBEIPEQj41VcZeJwd0Odvc8voMfxiEhwIZVLerUrVt1CbnP2SlnrHziIV6flozL-gaZcSV4IdtW3SSz3BRFo8qPJ-ROSl8Z47VQ7DY54W1ZVaqRM_JjQXt3hR016D01kx-niLQPHXpqQ6SQEqbU4zDSYOk2Bu8sRhhdGKgb6BiG5Hw2QEeX0oSJ2hh6ajbOdxEHeunGDQ3rNMbJjO4CafKIWwrbAYFm-YhminGnflByWecuuWXBJ7x3qHPy_vmzd2cvitXr5cuzxaowsqnqwoKQwG2NUorKtqqqAG1XIwgDNeddB0ytuTAC2pI1knetZUZxBIlViQ2KOXm6191O6x47k21E8HobXZ8_qgM4_W9ncBv9JVzosmlLWfMs8OggEMP3fPyoe5d2j4QBw5R0VfOayRzCnDzegyaGlCLa4xLO9C5DvctQ_8owww_-tvUHPYSWgYcHAJIBbyMMxqUjV3KpRMN39vieu3Qer_-zUq8Wbz79Xl7sZ1wa8eo4A_FbvkbUSn94tdTnann-tvrc6Er8BBBgyY0</recordid><startdate>200905</startdate><enddate>200905</enddate><creator>Serpero, Laura D.</creator><creator>Kheirandish-Gozal, Leila</creator><creator>Dayyat, Ehab</creator><creator>Goldman, Julie L.</creator><creator>Kim, Jinkwan</creator><creator>Gozal, David</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley-Blackwell</general><scope>BSCLL</scope><scope>IQODW</scope><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>7X8</scope><scope>5PM</scope></search><sort><creationdate>200905</creationdate><title>A mixed cell culture model for assessment of proliferation in tonsillar tissues from children with obstructive sleep apnea or recurrent tonsillitis</title><author>Serpero, Laura D. ; Kheirandish-Gozal, Leila ; Dayyat, Ehab ; Goldman, Julie L. ; Kim, Jinkwan ; Gozal, David</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4867-fa34a1f7e4436f9566aefd7ea3ca711dda05b13c3a920841d9f0c51ea4e62e8e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Adenoidectomy</topic><topic>Adenoids - metabolism</topic><topic>Adenoids - pathology</topic><topic>adenotonsillectomy</topic><topic>Analysis of Variance</topic><topic>Biological and medical sciences</topic><topic>Cell Culture Techniques</topic><topic>Cell Proliferation</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>cytokines</topic><topic>Cytokines - metabolism</topic><topic>Enzyme-Linked Immunosorbent Assay</topic><topic>Female</topic><topic>Humans</topic><topic>Hypertrophy</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Obstructive sleep apnea</topic><topic>Otorhinolaryngology. Stomatology</topic><topic>Palatine Tonsil - metabolism</topic><topic>Palatine Tonsil - pathology</topic><topic>Pneumology</topic><topic>Recurrence</topic><topic>recurrent tonsillitis</topic><topic>Respiratory system : syndromes and miscellaneous diseases</topic><topic>Sleep Apnea, Obstructive - pathology</topic><topic>Sleep Apnea, Obstructive - surgery</topic><topic>tonsillar hypertrophy</topic><topic>Tonsillectomy</topic><topic>Tonsillitis - pathology</topic><topic>Tonsillitis - surgery</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Serpero, Laura D.</creatorcontrib><creatorcontrib>Kheirandish-Gozal, Leila</creatorcontrib><creatorcontrib>Dayyat, Ehab</creatorcontrib><creatorcontrib>Goldman, Julie L.</creatorcontrib><creatorcontrib>Kim, Jinkwan</creatorcontrib><creatorcontrib>Gozal, David</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>The Laryngoscope</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Serpero, Laura D.</au><au>Kheirandish-Gozal, Leila</au><au>Dayyat, Ehab</au><au>Goldman, Julie L.</au><au>Kim, Jinkwan</au><au>Gozal, David</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A mixed cell culture model for assessment of proliferation in tonsillar tissues from children with obstructive sleep apnea or recurrent tonsillitis</atitle><jtitle>The Laryngoscope</jtitle><addtitle>The Laryngoscope</addtitle><date>2009-05</date><risdate>2009</risdate><volume>119</volume><issue>5</issue><spage>1005</spage><epage>1010</epage><pages>1005-1010</pages><issn>0023-852X</issn><eissn>1531-4995</eissn><coden>LARYA8</coden><abstract>Background:
Recurrent infective tonsillitis (RI) and obstructive sleep apnea (OSA) are the major indications for adenotonsillectomy (T&A) in children. However, little is known on the determinants of lymphadenoid tissue proliferation in the pediatric upper airway.
Objectives:
To develop an in vitro culture system allowing for assessment of tonsillar or adenoidal proliferation under basal or stimulated conditions.
Methods:
Tonsils surgically removed from pediatric patients with obstructive sleep apnea and recurrent tonsillitis during T&A, were dissociated using standard methods. Whole cell tonsillar cultures were either maintained in normal medium or stimulated with lipopolysaccharide (25 μg/mL) and concanavalin A (10 μg/mL) for 24 hours (stimulated conditions [STIM]). Cellular proliferation was evaluated by [3H]thymidine incorporation. In parallel, supernatants were collected after 48 hours, and concentration of cytokines was measured using standard enzyme‐linked immunosorbent assay procedures.
Results:
Basal proliferative rates were increased in the OSA group (305.2 ± 40.6 cpm; n = 31) compared to RI group (232.8 ± 31.9 cpm; n = 26; P < .001). No significant differences in proliferative rates emerged after STIM between OSA and RI. Furthermore, basal TNF‐alpha, IL‐6, and IL‐8 concentrations in the supernatant were increased in OSA‐derived cultures compared to RI, but IL‐8 was higher after STIM in RI, while IL‐6 remained increased in OSA.
Conclusions:
The proliferative rates and concentrations of inflammatory mediators in tonsillar cell cultures from children with OSA and RI suggest that lymphadenoid tissue proliferation in these two conditions may be regulated by different mechanisms. This novel method may allow for future development of specific therapeutic interventions aimed at curtailing and reversing tonsillar and adenoidal hypertrophy in children in a disease‐specific manner. Laryngoscope, 2009</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>19266584</pmid><doi>10.1002/lary.20147</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
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| ispartof | The Laryngoscope, 2009-05, Vol.119 (5), p.1005-1010 |
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| language | eng |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Adenoidectomy Adenoids - metabolism Adenoids - pathology adenotonsillectomy Analysis of Variance Biological and medical sciences Cell Culture Techniques Cell Proliferation Child Child, Preschool cytokines Cytokines - metabolism Enzyme-Linked Immunosorbent Assay Female Humans Hypertrophy Male Medical sciences Obstructive sleep apnea Otorhinolaryngology. Stomatology Palatine Tonsil - metabolism Palatine Tonsil - pathology Pneumology Recurrence recurrent tonsillitis Respiratory system : syndromes and miscellaneous diseases Sleep Apnea, Obstructive - pathology Sleep Apnea, Obstructive - surgery tonsillar hypertrophy Tonsillectomy Tonsillitis - pathology Tonsillitis - surgery |
| title | A mixed cell culture model for assessment of proliferation in tonsillar tissues from children with obstructive sleep apnea or recurrent tonsillitis |
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