Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses.

Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses. Research Abstract Details 

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Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses. Abstract Text:

Eri Nishihara,Shirng-Wern Tsaih,Chieko Tsukahara,Sarah Langley,Susan Sheehan,Keith DiPetrillo,Satoshi Kunita,Ken-ichi Yagami,Gary A Churchill,Beverly Paigen,Fumihiro Sugiyama,Eri Nishihara,Shirng-Wern Tsaih,Chieko Tsukahara,Sarah Langley,Susan Sheehan,Keith DiPetrillo,Satoshi Kunita,Ken-ichi Yagami,Gary A Churchill,Beverly Paigen,Fumihiro Sugiyama,

In a previous study in 15 inbred mouse strains, we found highest and lowest systolic blood pressures in NZO/HILtJ mice (metabolic syndrome) and C3H/HeJ mice (common lean strain), respectively. To identify the loci involved in hypertension in metabolic syndrome, we performed quantitative trait locus (QTL) analysis for blood pressure with direction of cross as a covariate in segregating F2 males derived from NZO/HILtJ and C3H/HeJ mice. We detected three suggestive main-effect QTLs affecting systolic and diastolic blood pressures (SBP and DBP). We analyzed the first principle component (PC1) generated from SBP and DBP to investigate blood pressure. In addition to all the suggestive QTLs (Chrs 1, 3, and 8) in SBP and DBP, one suggestive QTL on Chr 4 was found in PC1 in the main scan. Simultaneous search identified two significant epistatic locus pairs (Chrs 1 and 4, Chrs 4 and 8) for PC1. Multiple regression analysis revealed three blood pressure QTLs (Bpq10, 100 cM on Chr 1; Bpq11, 6 cM on Chr 4; Bpq12, 29 cM on Chr 8) accounting for 29.4% of blood pressure variance. These were epistatic interaction QTLs constructing a small network centered on Chr 4, suggesting the importance of genetic interaction for development of hypertension. The blood pressure QTLs on Chrs 1, 4, and 8 were detected repeatedly in multiple studies using common inbred nonobese mouse strains, implying substantial QTL independent of development of obesity and insulin resistance. These results enhance our understanding of complicated genetic factors of hypertension in metabolic diseases.

Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses. Publishing Authors By Initials

E Nishihara,SW Tsaih,C Tsukahara,S Langley,S Sheehan,K DiPetrillo,S Kunita,K Yagami,GA Churchill,B Paigen,F Sugiyama,E Nishihara,SW Tsaih,C Tsukahara,S Langley,S Sheehan,K DiPetrillo,S Kunita,K Yagami,GA Churchill,B Paigen,F Sugiyama,

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Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Mammalian genome : official journal of the Interna

VOLUME: 18

Page Numbers: 573-83

Journal Abbreviation: Mamm. Genome

ISSN: 0938-8990

DAY: 20

MONTH: 07

YEAR: 2007

Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses. Information

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LANGUAGE: eng

NlmUniqueID: 9100916

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Grant and Affiliation Information for Quantitative trait loci associated with blood pressure of metabolic syndrome in the progeny of NZO/HILtJxC3H/HeJ intercrosses.

AFFILIATION: Laboratory Animal Resource Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.

Country: United States

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MEDLINETA: Mamm Genome

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