Long-Term Treatment of Intestinal Helminths Increases Mite Skin-Test Reactivity in Gabonese Schoolchildren

Background. Several studies have shown an inverse association between helminth infections and atopy, but none have clearly established that the pathogens themselves, rather than other associated factors, cause the suppression of atopy. To show a direct link, prospective intervention studies are requ...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The Journal of infectious diseases 2004-03, Vol.189 (5), p.892-900
Hauptverfasser: van den Biggelaar, Anita H. J., Rodrigues, Laura C., van Ree, Ronald, van der Zee, Jaring S., Hoeksma-Kruize, Yvonne C. M., Souverijn, John H. M., Missinou, Michel A., Borrmann, Steffen, Kremsner, Peter G., Yazdanbakhsh, Maria
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 900
container_issue 5
container_start_page 892
container_title The Journal of infectious diseases
container_volume 189
creator van den Biggelaar, Anita H. J.
Rodrigues, Laura C.
van Ree, Ronald
van der Zee, Jaring S.
Hoeksma-Kruize, Yvonne C. M.
Souverijn, John H. M.
Missinou, Michel A.
Borrmann, Steffen
Kremsner, Peter G.
Yazdanbakhsh, Maria
description Background. Several studies have shown an inverse association between helminth infections and atopy, but none have clearly established that the pathogens themselves, rather than other associated factors, cause the suppression of atopy. To show a direct link, prospective intervention studies are required. Methods. A randomized, controlled trial was performed to study whether repeated anthelminthic treatment results in increased allergic sensitivity to house dust mites (HDMs) in chronically infected children. The trial population consisted of 317 Gabonese schoolchildren with a high prevalence of intestinal helminths. Intervention consisted of treatment every 3 months with praziquantel and mebendazole and with placebo in the control group. Follow-up lasted 30 months: at 6-month intervals, skin-test sensitivity to mites, helminth infection status, and levels of total IgE were determined. Results. Treatment resulted in a significant increase in the rate of developing skin sensitivity to HDMs (hazard ratio, 2.51; 95% confidence interval, 1.85–3.41), which was mediated, in part, by reductions in Ascaris and/or Trichuris infections. Levels of total IgE were reduced, but this did not mediate the effect of treatment on skin-test reactivity. Conclusions. Anthelminthic treatment of chronically infected children results in increased atopic reactivity, which indicates that helminths directly suppress allergic reactions.
doi_str_mv 10.1086/381767
format Article
fullrecord <record><control><sourceid>jstor_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_19770273</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><jstor_id>30075909</jstor_id><oup_id>10.1086/381767</oup_id><sourcerecordid>30075909</sourcerecordid><originalsourceid>FETCH-LOGICAL-c549t-aca098d7dea6ebf8c8fa209063b080e1401d17ccc2110f404abb474d3590c67a3</originalsourceid><addsrcrecordid>eNp10F1rFDEUBuAgil2r_gNlFPRu9GSSSSaXUm23sKVQ1w96EzKZjJvtTLImGbH_vimzdEHwKpDznJOTF6GXGD5gaNhH0mDO-CO0wDXhJWOYPEYLgKoqcSPEEXoW4xYAKGH8KTrCVHDGgC_QduXdr3Jtwlisg1FpNC4Vvi_OXTIxWaeGYmmG0bq0iflSZxNNLC5sMsXXG-tya0zFlVE62T823RbWFWeq9c7EDPTG-0Fv7NAF456jJ70aonmxP4_Rt9Mv65Nlubo8Oz_5tCp1TUUqlVYgmo53RjHT9o1uelWBAEZaaMBgCrjDXGtdYQw9BaralnLakVqAZlyRY_R-nrsL_veU15OjjdoMg3LGT1FiwTlUnGT49h-49VPIX46yqogAIZr6ME0HH2MwvdwFO6pwKzHI--jlHH2Gr_fTpnY03YHts87g3R6oqNXQB-W0jQdXc0ZFU2X3ZnZ-2v3_sVez2cbkw4MiADzHIHK9nOs2JvP3oa7CjczdvJbLn9fyxxX9vrrGp_IzuQMsuK2e</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>223909985</pqid></control><display><type>article</type><title>Long-Term Treatment of Intestinal Helminths Increases Mite Skin-Test Reactivity in Gabonese Schoolchildren</title><source>Jstor Complete Legacy</source><source>Oxford University Press Journals All Titles (1996-Current)</source><source>MEDLINE</source><source>Alma/SFX Local Collection</source><creator>van den Biggelaar, Anita H. J. ; Rodrigues, Laura C. ; van Ree, Ronald ; van der Zee, Jaring S. ; Hoeksma-Kruize, Yvonne C. M. ; Souverijn, John H. M. ; Missinou, Michel A. ; Borrmann, Steffen ; Kremsner, Peter G. ; Yazdanbakhsh, Maria</creator><creatorcontrib>van den Biggelaar, Anita H. J. ; Rodrigues, Laura C. ; van Ree, Ronald ; van der Zee, Jaring S. ; Hoeksma-Kruize, Yvonne C. M. ; Souverijn, John H. M. ; Missinou, Michel A. ; Borrmann, Steffen ; Kremsner, Peter G. ; Yazdanbakhsh, Maria</creatorcontrib><description>Background. Several studies have shown an inverse association between helminth infections and atopy, but none have clearly established that the pathogens themselves, rather than other associated factors, cause the suppression of atopy. To show a direct link, prospective intervention studies are required. Methods. A randomized, controlled trial was performed to study whether repeated anthelminthic treatment results in increased allergic sensitivity to house dust mites (HDMs) in chronically infected children. The trial population consisted of 317 Gabonese schoolchildren with a high prevalence of intestinal helminths. Intervention consisted of treatment every 3 months with praziquantel and mebendazole and with placebo in the control group. Follow-up lasted 30 months: at 6-month intervals, skin-test sensitivity to mites, helminth infection status, and levels of total IgE were determined. Results. Treatment resulted in a significant increase in the rate of developing skin sensitivity to HDMs (hazard ratio, 2.51; 95% confidence interval, 1.85–3.41), which was mediated, in part, by reductions in Ascaris and/or Trichuris infections. Levels of total IgE were reduced, but this did not mediate the effect of treatment on skin-test reactivity. Conclusions. Anthelminthic treatment of chronically infected children results in increased atopic reactivity, which indicates that helminths directly suppress allergic reactions.</description><identifier>ISSN: 0022-1899</identifier><identifier>EISSN: 1537-6613</identifier><identifier>DOI: 10.1086/381767</identifier><identifier>PMID: 14976607</identifier><identifier>CODEN: JIDIAQ</identifier><language>eng</language><publisher>Chicago, IL: The University of Chicago Press</publisher><subject>Adolescent ; Allergens ; Allergic diseases ; Allergies ; Animals ; Anthelmintics - adverse effects ; Anthelmintics - therapeutic use ; Antibodies ; Ascariasis - drug therapy ; Ascariasis - epidemiology ; Ascaris ; Biological and medical sciences ; Child ; Child, Preschool ; Control groups ; Dermatophagoides pteronyssinus ; Drug Hypersensitivity - epidemiology ; Experimentation ; Follow-Up Studies ; Food allergies ; Fundamental and applied biological sciences. Psychology ; Gabon - epidemiology ; Helminthiasis - drug therapy ; Helminthiasis - epidemiology ; Histamines ; Humans ; Infections ; Infectious diseases ; Insect Vectors ; Intestinal Diseases, Parasitic - drug therapy ; Intestinal Diseases, Parasitic - epidemiology ; Medical sciences ; Microbiology ; Mites - immunology ; Parasites ; Prevalence ; Proportional Hazards Models ; Reactivity ; Regression Analysis ; Research Design ; Skin Tests ; Time Factors ; Trichuriasis - drug therapy ; Trichuriasis - epidemiology</subject><ispartof>The Journal of infectious diseases, 2004-03, Vol.189 (5), p.892-900</ispartof><rights>Copyright 2003 Infectious Diseases Society of America</rights><rights>2004 by the Infectious Diseases Society of America 2004</rights><rights>2004 INIST-CNRS</rights><rights>Copyright University of Chicago, acting through its Press Mar 1 2004</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c549t-aca098d7dea6ebf8c8fa209063b080e1401d17ccc2110f404abb474d3590c67a3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/30075909$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/30075909$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27903,27904,57995,58228</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=15764982$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14976607$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>van den Biggelaar, Anita H. J.</creatorcontrib><creatorcontrib>Rodrigues, Laura C.</creatorcontrib><creatorcontrib>van Ree, Ronald</creatorcontrib><creatorcontrib>van der Zee, Jaring S.</creatorcontrib><creatorcontrib>Hoeksma-Kruize, Yvonne C. M.</creatorcontrib><creatorcontrib>Souverijn, John H. M.</creatorcontrib><creatorcontrib>Missinou, Michel A.</creatorcontrib><creatorcontrib>Borrmann, Steffen</creatorcontrib><creatorcontrib>Kremsner, Peter G.</creatorcontrib><creatorcontrib>Yazdanbakhsh, Maria</creatorcontrib><title>Long-Term Treatment of Intestinal Helminths Increases Mite Skin-Test Reactivity in Gabonese Schoolchildren</title><title>The Journal of infectious diseases</title><addtitle>J Infect Dis</addtitle><addtitle>J Infect Dis</addtitle><description>Background. Several studies have shown an inverse association between helminth infections and atopy, but none have clearly established that the pathogens themselves, rather than other associated factors, cause the suppression of atopy. To show a direct link, prospective intervention studies are required. Methods. A randomized, controlled trial was performed to study whether repeated anthelminthic treatment results in increased allergic sensitivity to house dust mites (HDMs) in chronically infected children. The trial population consisted of 317 Gabonese schoolchildren with a high prevalence of intestinal helminths. Intervention consisted of treatment every 3 months with praziquantel and mebendazole and with placebo in the control group. Follow-up lasted 30 months: at 6-month intervals, skin-test sensitivity to mites, helminth infection status, and levels of total IgE were determined. Results. Treatment resulted in a significant increase in the rate of developing skin sensitivity to HDMs (hazard ratio, 2.51; 95% confidence interval, 1.85–3.41), which was mediated, in part, by reductions in Ascaris and/or Trichuris infections. Levels of total IgE were reduced, but this did not mediate the effect of treatment on skin-test reactivity. Conclusions. Anthelminthic treatment of chronically infected children results in increased atopic reactivity, which indicates that helminths directly suppress allergic reactions.</description><subject>Adolescent</subject><subject>Allergens</subject><subject>Allergic diseases</subject><subject>Allergies</subject><subject>Animals</subject><subject>Anthelmintics - adverse effects</subject><subject>Anthelmintics - therapeutic use</subject><subject>Antibodies</subject><subject>Ascariasis - drug therapy</subject><subject>Ascariasis - epidemiology</subject><subject>Ascaris</subject><subject>Biological and medical sciences</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Control groups</subject><subject>Dermatophagoides pteronyssinus</subject><subject>Drug Hypersensitivity - epidemiology</subject><subject>Experimentation</subject><subject>Follow-Up Studies</subject><subject>Food allergies</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gabon - epidemiology</subject><subject>Helminthiasis - drug therapy</subject><subject>Helminthiasis - epidemiology</subject><subject>Histamines</subject><subject>Humans</subject><subject>Infections</subject><subject>Infectious diseases</subject><subject>Insect Vectors</subject><subject>Intestinal Diseases, Parasitic - drug therapy</subject><subject>Intestinal Diseases, Parasitic - epidemiology</subject><subject>Medical sciences</subject><subject>Microbiology</subject><subject>Mites - immunology</subject><subject>Parasites</subject><subject>Prevalence</subject><subject>Proportional Hazards Models</subject><subject>Reactivity</subject><subject>Regression Analysis</subject><subject>Research Design</subject><subject>Skin Tests</subject><subject>Time Factors</subject><subject>Trichuriasis - drug therapy</subject><subject>Trichuriasis - epidemiology</subject><issn>0022-1899</issn><issn>1537-6613</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp10F1rFDEUBuAgil2r_gNlFPRu9GSSSSaXUm23sKVQ1w96EzKZjJvtTLImGbH_vimzdEHwKpDznJOTF6GXGD5gaNhH0mDO-CO0wDXhJWOYPEYLgKoqcSPEEXoW4xYAKGH8KTrCVHDGgC_QduXdr3Jtwlisg1FpNC4Vvi_OXTIxWaeGYmmG0bq0iflSZxNNLC5sMsXXG-tya0zFlVE62T823RbWFWeq9c7EDPTG-0Fv7NAF456jJ70aonmxP4_Rt9Mv65Nlubo8Oz_5tCp1TUUqlVYgmo53RjHT9o1uelWBAEZaaMBgCrjDXGtdYQw9BaralnLakVqAZlyRY_R-nrsL_veU15OjjdoMg3LGT1FiwTlUnGT49h-49VPIX46yqogAIZr6ME0HH2MwvdwFO6pwKzHI--jlHH2Gr_fTpnY03YHts87g3R6oqNXQB-W0jQdXc0ZFU2X3ZnZ-2v3_sVez2cbkw4MiADzHIHK9nOs2JvP3oa7CjczdvJbLn9fyxxX9vrrGp_IzuQMsuK2e</recordid><startdate>20040301</startdate><enddate>20040301</enddate><creator>van den Biggelaar, Anita H. J.</creator><creator>Rodrigues, Laura C.</creator><creator>van Ree, Ronald</creator><creator>van der Zee, Jaring S.</creator><creator>Hoeksma-Kruize, Yvonne C. M.</creator><creator>Souverijn, John H. M.</creator><creator>Missinou, Michel A.</creator><creator>Borrmann, Steffen</creator><creator>Kremsner, Peter G.</creator><creator>Yazdanbakhsh, Maria</creator><general>The University of Chicago Press</general><general>University of Chicago Press</general><general>Oxford University Press</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>K9.</scope><scope>NAPCQ</scope><scope>7SS</scope></search><sort><creationdate>20040301</creationdate><title>Long-Term Treatment of Intestinal Helminths Increases Mite Skin-Test Reactivity in Gabonese Schoolchildren</title><author>van den Biggelaar, Anita H. J. ; Rodrigues, Laura C. ; van Ree, Ronald ; van der Zee, Jaring S. ; Hoeksma-Kruize, Yvonne C. M. ; Souverijn, John H. M. ; Missinou, Michel A. ; Borrmann, Steffen ; Kremsner, Peter G. ; Yazdanbakhsh, Maria</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c549t-aca098d7dea6ebf8c8fa209063b080e1401d17ccc2110f404abb474d3590c67a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Adolescent</topic><topic>Allergens</topic><topic>Allergic diseases</topic><topic>Allergies</topic><topic>Animals</topic><topic>Anthelmintics - adverse effects</topic><topic>Anthelmintics - therapeutic use</topic><topic>Antibodies</topic><topic>Ascariasis - drug therapy</topic><topic>Ascariasis - epidemiology</topic><topic>Ascaris</topic><topic>Biological and medical sciences</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Control groups</topic><topic>Dermatophagoides pteronyssinus</topic><topic>Drug Hypersensitivity - epidemiology</topic><topic>Experimentation</topic><topic>Follow-Up Studies</topic><topic>Food allergies</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gabon - epidemiology</topic><topic>Helminthiasis - drug therapy</topic><topic>Helminthiasis - epidemiology</topic><topic>Histamines</topic><topic>Humans</topic><topic>Infections</topic><topic>Infectious diseases</topic><topic>Insect Vectors</topic><topic>Intestinal Diseases, Parasitic - drug therapy</topic><topic>Intestinal Diseases, Parasitic - epidemiology</topic><topic>Medical sciences</topic><topic>Microbiology</topic><topic>Mites - immunology</topic><topic>Parasites</topic><topic>Prevalence</topic><topic>Proportional Hazards Models</topic><topic>Reactivity</topic><topic>Regression Analysis</topic><topic>Research Design</topic><topic>Skin Tests</topic><topic>Time Factors</topic><topic>Trichuriasis - drug therapy</topic><topic>Trichuriasis - epidemiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>van den Biggelaar, Anita H. J.</creatorcontrib><creatorcontrib>Rodrigues, Laura C.</creatorcontrib><creatorcontrib>van Ree, Ronald</creatorcontrib><creatorcontrib>van der Zee, Jaring S.</creatorcontrib><creatorcontrib>Hoeksma-Kruize, Yvonne C. M.</creatorcontrib><creatorcontrib>Souverijn, John H. M.</creatorcontrib><creatorcontrib>Missinou, Michel A.</creatorcontrib><creatorcontrib>Borrmann, Steffen</creatorcontrib><creatorcontrib>Kremsner, Peter G.</creatorcontrib><creatorcontrib>Yazdanbakhsh, Maria</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>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Entomology Abstracts (Full archive)</collection><jtitle>The Journal of infectious diseases</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>van den Biggelaar, Anita H. J.</au><au>Rodrigues, Laura C.</au><au>van Ree, Ronald</au><au>van der Zee, Jaring S.</au><au>Hoeksma-Kruize, Yvonne C. M.</au><au>Souverijn, John H. M.</au><au>Missinou, Michel A.</au><au>Borrmann, Steffen</au><au>Kremsner, Peter G.</au><au>Yazdanbakhsh, Maria</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Long-Term Treatment of Intestinal Helminths Increases Mite Skin-Test Reactivity in Gabonese Schoolchildren</atitle><jtitle>The Journal of infectious diseases</jtitle><stitle>J Infect Dis</stitle><addtitle>J Infect Dis</addtitle><date>2004-03-01</date><risdate>2004</risdate><volume>189</volume><issue>5</issue><spage>892</spage><epage>900</epage><pages>892-900</pages><issn>0022-1899</issn><eissn>1537-6613</eissn><coden>JIDIAQ</coden><abstract>Background. Several studies have shown an inverse association between helminth infections and atopy, but none have clearly established that the pathogens themselves, rather than other associated factors, cause the suppression of atopy. To show a direct link, prospective intervention studies are required. Methods. A randomized, controlled trial was performed to study whether repeated anthelminthic treatment results in increased allergic sensitivity to house dust mites (HDMs) in chronically infected children. The trial population consisted of 317 Gabonese schoolchildren with a high prevalence of intestinal helminths. Intervention consisted of treatment every 3 months with praziquantel and mebendazole and with placebo in the control group. Follow-up lasted 30 months: at 6-month intervals, skin-test sensitivity to mites, helminth infection status, and levels of total IgE were determined. Results. Treatment resulted in a significant increase in the rate of developing skin sensitivity to HDMs (hazard ratio, 2.51; 95% confidence interval, 1.85–3.41), which was mediated, in part, by reductions in Ascaris and/or Trichuris infections. Levels of total IgE were reduced, but this did not mediate the effect of treatment on skin-test reactivity. Conclusions. Anthelminthic treatment of chronically infected children results in increased atopic reactivity, which indicates that helminths directly suppress allergic reactions.</abstract><cop>Chicago, IL</cop><pub>The University of Chicago Press</pub><pmid>14976607</pmid><doi>10.1086/381767</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0022-1899
ispartof The Journal of infectious diseases, 2004-03, Vol.189 (5), p.892-900
issn 0022-1899
1537-6613
language eng
recordid cdi_proquest_miscellaneous_19770273
source Jstor Complete Legacy; Oxford University Press Journals All Titles (1996-Current); MEDLINE; Alma/SFX Local Collection
subjects Adolescent
Allergens
Allergic diseases
Allergies
Animals
Anthelmintics - adverse effects
Anthelmintics - therapeutic use
Antibodies
Ascariasis - drug therapy
Ascariasis - epidemiology
Ascaris
Biological and medical sciences
Child
Child, Preschool
Control groups
Dermatophagoides pteronyssinus
Drug Hypersensitivity - epidemiology
Experimentation
Follow-Up Studies
Food allergies
Fundamental and applied biological sciences. Psychology
Gabon - epidemiology
Helminthiasis - drug therapy
Helminthiasis - epidemiology
Histamines
Humans
Infections
Infectious diseases
Insect Vectors
Intestinal Diseases, Parasitic - drug therapy
Intestinal Diseases, Parasitic - epidemiology
Medical sciences
Microbiology
Mites - immunology
Parasites
Prevalence
Proportional Hazards Models
Reactivity
Regression Analysis
Research Design
Skin Tests
Time Factors
Trichuriasis - drug therapy
Trichuriasis - epidemiology
title Long-Term Treatment of Intestinal Helminths Increases Mite Skin-Test Reactivity in Gabonese Schoolchildren
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-28T05%3A13%3A09IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Long-Term%20Treatment%20of%20Intestinal%20Helminths%20Increases%20Mite%20Skin-Test%20Reactivity%20in%20Gabonese%20Schoolchildren&rft.jtitle=The%20Journal%20of%20infectious%20diseases&rft.au=van%20den%20Biggelaar,%20Anita%20H.%20J.&rft.date=2004-03-01&rft.volume=189&rft.issue=5&rft.spage=892&rft.epage=900&rft.pages=892-900&rft.issn=0022-1899&rft.eissn=1537-6613&rft.coden=JIDIAQ&rft_id=info:doi/10.1086/381767&rft_dat=%3Cjstor_proqu%3E30075909%3C/jstor_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=223909985&rft_id=info:pmid/14976607&rft_jstor_id=30075909&rft_oup_id=10.1086/381767&rfr_iscdi=true