Low copy number of the salivary amylase gene predisposes to obesity.
Low copy number of the salivary amylase gene predisposes to obesity.
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唾液淀粉酶基因的低拷贝数易于肥胖。
DOI:
10.1038/ng.2939
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发表时间:
2014-05
期刊:
影响因子:
30.8
通讯作者:
Froguel P
中科院分区:
文献类型:
--
作者:
Falchi M;El-Sayed Moustafa JS;Takousis P;Pesce F;Bonnefond A;Andersson-Assarsson JC;Sudmant PH;Dorajoo R;Al-Shafai MN;Bottolo L;Ozdemir E;So HC;Davies RW;Patrice A;Dent R;Mangino M;Hysi PG;Dechaume A;Huyvaert M;Skinner J;Pigeyre M;Caiazzo R;Raverdy V;Vaillant E;Field S;Balkau B;Marre M;Visvikis-Siest S;Weill J;Poulain-Godefroy O;Jacobson P;Sjostrom L;Hammond CJ;Deloukas P;Sham PC;McPherson R;Lee J;Tai ES;Sladek R;Carlsson LM;Walley A;Eichler EE;Pattou F;Spector TD;Froguel P
Common multi-allelic copy number variants (CNVs) appear enriched for phenotypic associations compared to their biallelic counterparts,,,. Here we investigated the influence of gene dosage effects on adiposity through a CNV association study of gene expression levels in adipose tissue. We identified significant association of a multi-allelic CNV encompassing the salivary amylase gene (AMY1) with body mass index (BMI) and obesity, and we replicated this finding in 6,200 subjects. IncreasedAMY1copy number was positively associated with both amylase gene expression (P= 2.31 × 10−14) and serum enzyme levels (P< 2.20 × 10−16), whereas reducedAMY1copy number was associated with increased BMI (change in BMI per estimated copy = −0.15 (0.02) kg/m2;P= 6.93 × 10−10) and obesity risk (odds ratio (OR) per estimated copy = 1.19, 95% confidence interval (CI) = 1.13–1.26;P= 1.46 × 10−10). The OR value of 1.19 per copy ofAMY1translates into about an eightfold difference in risk of obesity between subjects in the top (copy number > 9) and bottom (copy number < 4) 10% of the copy number distribution. Our study provides a first genetic link between carbohydrate metabolism and BMI and demonstrates the power of integrated genomic approaches beyond genome-wide association studies.
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影响因子:
9.8
作者:
Fellermann, Klaus;Stange, Daniel E.;Stange, Eduard F.
通讯作者:
Stange, Eduard F.
影响因子:
56.9
作者:
Gonzalez, E;Kulkarni, H;Ahuja, SK
通讯作者:
Ahuja, SK
DOI:
10.1007/bf01874272
发表时间:
1977-01-01
期刊:
JAPANESE JOURNAL OF HUMAN GENETICS
影响因子:
--
作者:
PARK, KS
通讯作者:
PARK, KS
DOI:
10.1007/978-1-61779-507-7_9
发表时间:
2012-01-01
期刊:
GENOMIC STRUCTURAL VARIANTS: METHODS AND PROTOCOLS
影响因子:
--
作者:
Hollox, Edward J.
通讯作者:
Hollox, Edward J.
影响因子:
5.8
作者:
Eleftherohorinou, Hariklia;Andersson-Assarsson, Johanna C.;Falchi, Mario
通讯作者:
Falchi, Mario