Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2008-6-16
pubmed:abstractText
Data on the relationship between the two genotypes of Giardia duodenalis that infect humans, assemblages A and B, their clinical presentation and intestinal inflammation are limited. We analyzed 108 stool samples previously collected for a diarrhoeal study among Brazilian children, representing 71 infections in 47 children. Assemblage B was most prevalent, accounting for 43/58 (74.1%) infections, while assemblage A accounted for 9/58 (15.5%) infections and 6/58 (10.3%) infections were mixed (contained both assemblage A and B). There was no significant difference in diarrhoeal symptoms experienced during assemblage A, B or mixed infections. Children with assemblage B demonstrated greater variability in G. duodenalis cyst shedding but at an overall greater level (n=43, mean 3.6 x 10(5), range 5.3 x 10(2)-2.5 x 10(6)cysts/ml) than children infected with assemblage A (n=9, mean 1.4 x 10(5), range 1.5 x 10(4)-4.6 x 10(5)cysts/ml; P=0.009). Children with mixed infections shed more cysts (mean 8.3 x 10(5), range 3.1 x 10(4)-2.8 x 10(6)cysts/ml) than children with assemblage A or B alone (P=0.069 and P=0.046 respectively). This higher rate of cyst shedding in children with assemblage B may promote its spread, accounting for its increased incidence. Additionally, second and third infections had decreasing faecal lactoferrin, suggesting some protection against severity, albeit not against infection, by prior infection.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0035-9203
pubmed:author
pubmed:issnType
Print
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
718-25
pubmed:dateRevised
2010-12-3
pubmed:meshHeading
pubmed-meshheading:18485429-Animals, pubmed-meshheading:18485429-Antigens, Protozoan, pubmed-meshheading:18485429-Brazil, pubmed-meshheading:18485429-Child, Preschool, pubmed-meshheading:18485429-DNA, Protozoan, pubmed-meshheading:18485429-Diarrhea, pubmed-meshheading:18485429-Escherichia coli, pubmed-meshheading:18485429-Feces, pubmed-meshheading:18485429-Female, pubmed-meshheading:18485429-Genotype, pubmed-meshheading:18485429-Giardia, pubmed-meshheading:18485429-Giardiasis, pubmed-meshheading:18485429-Host-Parasite Interactions, pubmed-meshheading:18485429-Humans, pubmed-meshheading:18485429-Infant, pubmed-meshheading:18485429-Longitudinal Studies, pubmed-meshheading:18485429-Male, pubmed-meshheading:18485429-Polymerase Chain Reaction, pubmed-meshheading:18485429-Polymorphism, Restriction Fragment Length, pubmed-meshheading:18485429-Poverty Areas, pubmed-meshheading:18485429-Sensitivity and Specificity, pubmed-meshheading:18485429-Sequence Analysis, DNA
pubmed:year
2008
pubmed:articleTitle
Giardia duodenalis assemblage, clinical presentation and markers of intestinal inflammation in Brazilian children.
pubmed:affiliation
Center for Global Health, Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, VA 22908, USA. akohli@virginia.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural