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Testing for association in SLE families
Author(s) -
Seuchter Susanne A.,
Knapp Michael,
Hartung Klaus,
Coldewey Rolf,
Kalden Joachim R.,
Lakomek Heinz J.,
Peter Hans H.,
Deicher Helmuth,
Baur Max P.,
Vogler G. P.
Publication year - 1991
Publication title -
genetic epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.301
H-Index - 98
eISSN - 1098-2272
pISSN - 0741-0395
DOI - 10.1002/gepi.1370080607
Subject(s) - haplotype , allele , genetic association , disease , genetics , association (psychology) , locus (genetics) , population , genetic predisposition , case control study , biology , immunology , medicine , genotype , single nucleotide polymorphism , gene , environmental health , psychology , psychotherapist
Systemic lupus erythematosus (SLE) is a complex disease which is partly determined by genetic factors which influence susceptibility to the disease phenotype. In this association study we try to define the high risk haplotypes which are responsible for this disease, together with other environmental factors. In many other association studies a set of SLE patients is compared to a set of controls. The basic assumption about the underlying population is that the disease and control sample should originate from the same genetic population, which is not always completely satisfied in many studies. Therefore, we analyse our family data by applying the Haplotype Frequency Difference (HFD) Method, which constructs its internal control group from those haplotypes not transmitted to the affected individual. Results partially conform with other studies, showing that the haplotypes B8 DR3 as well as B7 DR2 have a high positive association with SLE. When the DR locus was analyzed alone, we found besides the alleles DR2 and DR3 a negative association for DR1, DR5, and DR6.