0000000000940985

AUTHOR

Werner Zenz

0000-0002-6218-3143

showing 2 related works from this author

Human toll-like receptor 4 mutations are associated with susceptibility to invasive meningococcal disease in infancy.

2006

Toll-like receptor 4 (TLR4) is required for efficient recognition of bacterial infections. We investigated an association between 2 TLR4 mutations (Asp 299 Gly and Thr 399 Ile) and meningococcal disease in 197 patients and 214 healthy controls by allele-specific real time polymerase chain reaction and direct sequencing. Although the allele frequency was not higher in the overall patient population, a significantly higher frequency in the 40 patients younger than 12 months of age (P = 0.007) was observed. We conclude that TLR4 mutations represent a risk factor for meningococcal disease in this age group.

Microbiology (medical)MaleMutation MissenseMeningococcal diseasemedicine.disease_causePolymerase Chain ReactionGene FrequencyMedicineHumansGenetic Predisposition to DiseaseRisk factorReceptorChildAllele frequencyAllelesToll-like receptorMutationbusiness.industryAge FactorsInfantDNASequence Analysis DNAmedicine.diseaseEuropeMeningococcal InfectionsToll-Like Receptor 4Infectious DiseasesReal-time polymerase chain reactionAmino Acid SubstitutionChild PreschoolPediatrics Perinatology and Child HealthImmunologyTLR4FemalebusinessThe Pediatric infectious disease journal
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Age-Dependent Association of Human Mannose-Binding Lectin Mutations With Susceptibility to Invasive Meningococcal Disease in Childhood

2007

Mannose-binding lectin (MBL) is an important factor of the innate immune system, and MBL-initiated complement activation is an important early defense mechanism against various bacterial infections, including invasive meningococcal disease.In a pediatric cohort (ages 2-215 months) with invasive meningococcal disease, we investigated the overall and age-stratified frequency of 3 MBL exon 1 variations (C154T, G161A, G170A), previously shown to result in markedly decreased MBL plasma concentrations, by allele specific fluorescent hybridization probe real-time PCR assays and direct sequencing. Healthy age-matched volunteers with the same ethnic background and no history of meningococcal disease…

MaleMicrobiology (medical)AgingAdolescentMannosechemical and pharmacologic phenomenaMeningococcal diseasemedicine.disease_causeMannose-Binding Lectinchemistry.chemical_compoundPrevalencemedicineHumansGenetic Predisposition to DiseaseChildMannan-binding lectinMutationInnate immune systembiologybusiness.industryInfantLectinbacterial infections and mycosesmedicine.diseaseComplement systemMeningococcal InfectionsInfectious DiseaseschemistryChild PreschoolMutationPediatrics Perinatology and Child HealthImmunologyCohortbiology.proteinFemalebusinessPediatric Infectious Disease Journal
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