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Title: Pathway analysis shows association between FGFBP1 and hypertension.
Authors: Tomaszewski, M
Charchar, FJ
Nelson, CP
Barnes, T
Denniff, M
Kaiser, M
Debiec, R
Christofidou, P
Rafelt, S
van der Harst P
Wang, WY
Maric, C
Zukowska-Szczechowska, E
Samani, NJ
First Published: May-2011
Citation: J AM SOC NEPHROL, 2011, 22 (5), pp. 947-955
Abstract: Variants in the gene encoding fibroblast growth factor 1 (FGF1) co-segregate with familial susceptibility to hypertension, and glomerular upregulation of FGF1 associates with hypertension. To investigate whether variants in other members of the FGF signaling pathway may also associate with hypertension, we genotyped 629 subjects from 207 Polish families with hypertension for 79 single nucleotide polymorphisms in eight genes of this network. Family-based analysis showed that parents transmitted the major allele of the rs16892645 polymorphism in the gene encoding FGF binding protein 1 (FGFBP1) to hypertensive offspring more frequently than expected by chance (P=0.005). An independent cohort of 807 unrelated Polish subjects validated this association. Furthermore, compared with normotensive subjects, hypertensive subjects had approximately 1.5- and 1.4-fold higher expression of renal FGFBP1 mRNA and protein (P=0.04 and P=0.001), respectively. By immunohistochemistry, hypertension-related upregulation of FGFBP1 was most apparent in the glomerulus and juxtaglomerular space. Taken together, these data suggest that FGFBP1 associates with hypertension and that systematic analysis of signaling pathways can identify previously undescribed genetic associations.
DOI Link: 10.1681/ASN.2010080829
eISSN: 1533-3450
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Cardiovascular Sciences

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