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Children with the Le(a+b-) blood group have increased susceptibility to diarrhea caused by enterotoxigenic Escherichia coli expressing colonization factor I group fimbriae.

Ahmed, Tanvir, 1970 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology
Lundgren, Anna, 1974 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology
Arifuzzaman, Mohammad (author)
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Qadri, Firdausi (author)
Teneberg, Susann, 1955 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology
Svennerholm, Ann-Mari, 1947 (author)
Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology
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 (creator_code:org_t)
2009
2009
English.
In: Infection and immunity. - 1098-5522. ; 77:5, s. 2059-64
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Recent studies have shown that children with blood group A have increased susceptibility to enterotoxigenic Escherichia coli (ETEC) diarrhea and that Lewis blood group "a" antigen (Le(a)) may be a candidate receptor for ETEC colonization factor (CF) antigen I (CFA/I) fimbriae. Based on these findings, we have attempted to determine if children with the Le(a+b-) phenotype may be more susceptible to diarrhea caused by ETEC, in particular ETEC expressing CFA/I and related fimbriae of the CFA/I group, than Le(a-b+) children. To test this hypothesis, we have determined the Lewis antigen expression in 179 Bangladeshi children from a prospective birth cohort study in urban Dhaka in which ETEC expressing major CFs such as CFA/I, CS3, CS5, and CS6 was the most commonly isolated diarrhea pathogen during the first 2 years of life. The Lewis blood group phenotypes were determined by a dot blot immunoassay using saliva samples and by a tube agglutination test using fresh red blood cells. The results indicate that Le(a+b-) children more often had symptomatic than asymptomatic ETEC infections (P < 0.001), whereas symptomatic and asymptomatic ETEC infections were equally frequent in Le(a-b+) children. We also show that children with the Le(a+b-) blood type had significantly higher incidences of diarrhea caused by ETEC expressing fimbriae of the CFA/I group than Le(a-b+) children (P < 0.001). In contrast, we did not find any association between the Lewis blood group phenotype and diarrhea caused by ETEC expressing CS6 or rotavirus.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Microbiology in the medical area (hsv//eng)

Keyword

Adult
Bangladesh
Child
Preschool
Diarrhea
epidemiology
microbiology
Disease Susceptibility
Enterotoxigenic Escherichia coli
isolation & purification
Escherichia coli Infections
epidemiology
microbiology
Female
Fimbriae Proteins
biosynthesis
Humans
Incidence
Infant
Infant
Newborn
Lewis Blood-Group System
Young Adult

Publication and Content Type

ref (subject category)
art (subject category)

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