Journal of hypertension · 2009
A novel locus for arterial hypertension on chromosome 1p36 maps to a metabolic syndrome trait cluster in the Sorbs, a Slavic population isolate in Germany.
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Hoffmann Katrin, Planitz Christian, Rüschendorf Franz, Müller-Myhsok Bertram, Stassen Hans H, Lucke Barbara, Mattheisen Manuel, Stumvoll Michael, Bochmann Rolf, Zschornack Martin, Wienker Thomas F, Nürnberg Peter, Reis André, Luft Friedrich C, Lindner Tom H
Аннотация
OBJECTIVE: Genome-wide linkage studies and genome-wide association studies have not as yet identified major genes contributing to primary hypertension in the general population. This state-of-affairs suggests considerable heterogeneity with small contributing effects for primary hypertension, or other complex genetic traits, in outbred populations. Isolated populations, as recent data from Iceland and French Canada suggest, could offer a solution to this problem.
METHODS: We studied a Slavic isolate in Germany, the Sorbs, and genotyped 1040 polymorphic microsatellite markers in 87 multigeneration families.
RESULTS: Our genome-wide linkage scan revealed a locus on chromosome 1p36.13 at D1S3669-D1S2826 (40.95 cM Marshfield coordinates; logarithm of the odds = 3.45, nominal P = 0.00003) that reached genome-wide significance (P = 0.004), indicating the increased power in isolated populations. The chromosome 1 locus maps to a region in which traits such as diabetes, hyperlipidemia, obesity and BMI cluster.
CONCLUSION: Our results suggest that this locus contributes to the metabolic syndrome, and that further attention in this and other populations is warranted.
METHODS: We studied a Slavic isolate in Germany, the Sorbs, and genotyped 1040 polymorphic microsatellite markers in 87 multigeneration families.
RESULTS: Our genome-wide linkage scan revealed a locus on chromosome 1p36.13 at D1S3669-D1S2826 (40.95 cM Marshfield coordinates; logarithm of the odds = 3.45, nominal P = 0.00003) that reached genome-wide significance (P = 0.004), indicating the increased power in isolated populations. The chromosome 1 locus maps to a region in which traits such as diabetes, hyperlipidemia, obesity and BMI cluster.
CONCLUSION: Our results suggest that this locus contributes to the metabolic syndrome, and that further attention in this and other populations is warranted.