Mannose-binding lectin polymorphisms in clinical tuberculosis
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Mannose-binding lectin polymorphisms in clinical tuberculosis. / Søborg, Christian; Madsen, Hans O.; Andersen, Åse B.; Lillebaek, Troels; Kok-Jensen, Axel; Garred, Peter.
I: Journal of Infectious Diseases, Bind 188, Nr. 5, 01.09.2003, s. 777-782.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Mannose-binding lectin polymorphisms in clinical tuberculosis
AU - Søborg, Christian
AU - Madsen, Hans O.
AU - Andersen, Åse B.
AU - Lillebaek, Troels
AU - Kok-Jensen, Axel
AU - Garred, Peter
PY - 2003/9/1
Y1 - 2003/9/1
N2 - Mannose-binding lectin (MBL) mediates protection against infections by using the complement system, but certain microorganisms may increase infectivity by exploiting this host defense system. Thus, it has been speculated whether genetically determined low MBL levels may confer partial protection against certain intracellular microorganisms, such as Mycobacterium tuberculosis. We investigated MBL alleles in 109 culture-positive human immunodeficiency virus-uninfected patients with tuberculosis living in Denmark and 250 white control subjects. Patients and control subjects were divided into 3 different groups defined by undetectable, low, and high serum MBL concentrations, which correlates to deficient, low, and high expressing MBL genotypes. A significantly decreased frequency of patients with the low-expressing MBL genotype was observed in white patients compared to control subjects. The same tendency also was observed in patients of other ethnic origin. It may be hypothesized that heterozygosity for MBL variant alleles, which encodes low serum MBL levels, is associated with protection against clinical tuberculosis.
AB - Mannose-binding lectin (MBL) mediates protection against infections by using the complement system, but certain microorganisms may increase infectivity by exploiting this host defense system. Thus, it has been speculated whether genetically determined low MBL levels may confer partial protection against certain intracellular microorganisms, such as Mycobacterium tuberculosis. We investigated MBL alleles in 109 culture-positive human immunodeficiency virus-uninfected patients with tuberculosis living in Denmark and 250 white control subjects. Patients and control subjects were divided into 3 different groups defined by undetectable, low, and high serum MBL concentrations, which correlates to deficient, low, and high expressing MBL genotypes. A significantly decreased frequency of patients with the low-expressing MBL genotype was observed in white patients compared to control subjects. The same tendency also was observed in patients of other ethnic origin. It may be hypothesized that heterozygosity for MBL variant alleles, which encodes low serum MBL levels, is associated with protection against clinical tuberculosis.
UR - http://www.scopus.com/inward/record.url?scp=0141724527&partnerID=8YFLogxK
U2 - 10.1086/377183
DO - 10.1086/377183
M3 - Journal article
C2 - 12934195
AN - SCOPUS:0141724527
VL - 188
SP - 777
EP - 782
JO - Journal of Infectious Diseases
JF - Journal of Infectious Diseases
SN - 0022-1899
IS - 5
ER -
ID: 247166195