國家衛生研究院 NHRI:Item 3990099045/1729
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/1729


    Title: Sibling-based association study of the PPAR gamma(2) Pro12Ala polymorphism and metabolic variables in Chinese and Japanese hypertension families: a SAPPHIRe study
    Authors: Chuang, LM;Hsiung, CA;Chen, YDI;Ho, LT;Sheu, WHH;Pei, D;Nakatsuka, CH;Cox, D;Pratt, RE;Lei, HH;Tai, TY
    Contributors: Division of Biostatistics and Bioinformatics
    Abstract: The peroxisome proliferator activated receptor (PPAR) gamma (2) is a transcription factor that has been shown to be involved in adipocyte differentiation, adipogenesis., and insulin sensitivity. To address the role of PPAR gamma (2) in glucose homeostasis and insulin sensitivity, among many other objectives, we conducted a sibling-controlled association study in a multicenter program - the Stanford Asian-Pacific Program in Hypertension and Insulin Resistance (SAPPHIRe). Approximately 2525 subjects in 734 Chinese and Japanese families have been recruited from six field centers for SAPPHIRe. In total, 1702 subjects including parents and siblings from 449 families have been genotyped for PPAR gamma (2), of which 328 families were Chinese and 121 Japanese. Only 88 subjects of the 1525 siblings screened for the P12A polymorphism were found to be carriers of the A variant, the most common variant of the PPAR gamma (2) gene. A variant frequencies of the siblings were 4.27% in Chinese and 2.72% in Japanese. A sibling-controlled association study was performed through genetically discordant sibships (i.e., P/P genotype vs. P/A + A/A genotypes). Specifically, we examined whether there were differences in metabolic variables between the discordant siblings within families. In total, 88 subjects carrying either 1 or 2 A alleles had at least one sibling who was discordant for the P12A polymorphism, yielding a total of 180 individuals from 47 families for analyses, among which 92 siblings were homozygous for wild-type P allele. Siblings with the A variant tended to have tower levels of fasting plasma glucose (OG-10), and lower glucose levels at 60 min following oral glucose loading after adjusting for age, gender, and body mass index. Using a mixed model treating family as a random effect, we found that P12A polymorphism of the PPAR gamma (2) gene contributes significantly to the variance in fasting plasma glucose, glucose level at 60 min, and insulin-resistance homeostasis model assessment. Our results suggest that within families siblings with the A variant in the PPAR gamma (2) gene may be more likely to have better glucose tolerance and insulin sensitivity independent of obesity in Chinese and Japanese populations.
    Keywords: Genetics & Heredity;Medicine, Research & Experimental
    Date: 2001-11
    Relation: Journal of Molecular Medicine. 2001 Nov;79(11):656-664.
    Link to: http://dx.doi.org/10.1007/s001090100255
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0946-2716&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000172518700007
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0035163768
    Appears in Collections:[Chao A. Hsiung] Periodical Articles

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