Regional fat depot masses are influenced by protein-coding gene variants

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Neville , M J , Wittemans , L B L , Pinnick , K E , Todorcevic , M , Kaksonen , R , Pietiläinen , K H , Luan , J , Scott , R A , Wareham , N J , Langenberg , C & Karpe , F 2019 , ' Regional fat depot masses are influenced by protein-coding gene variants ' , PLoS One , vol. 14 , no. 5 , 0217644 .

Title: Regional fat depot masses are influenced by protein-coding gene variants
Author: Neville, Matt J.; Wittemans, Laura B. L.; Pinnick, Katherine E.; Todorcevic, Marijana; Kaksonen, Risto; Pietiläinen, Kirsi H.; Luan, Jian'an; Scott, Robert A.; Wareham, Nicholas J.; Langenberg, Claudia; Karpe, Fredrik
Other contributor: University of Helsinki, Research Programs Unit
University of Helsinki, HUS Abdominal Center

Date: 2019-05-30
Language: eng
Number of pages: 17
Belongs to series: PLoS One
ISSN: 1932-6203
Abstract: Waist-to-hip ratio (WHR) is a prominent cardiometabolic risk factor that increases cardio-metabolic disease risk independently of BMI and for which multiple genetic loci have been identified. However, WHR is a relatively crude proxy for fat distribution and it does not capture all variation in fat distribution. We here present a study of the role of coding genetic variants on fat mass in 6 distinct regions of the body, based on dual-energy X-ray absorptiometry imaging on more than 17k participants. We find that the missense variant CCDC92(S70C), previously associated with WHR, is associated specifically increased leg fat mass and reduced visceral but not subcutaneous central fat. The minor allele-carrying transcript of CCDC92 is constitutively more highly expressed in adipose tissue samples. In addition, we identify two coding variants in SPATA20 and UQCC1 that are associated with arm fat mass. SPATA20(K422R) is a low-frequency variant with a large effect on arm fat only, and UQCC1(R51Q) is a common variant reaching significance for arm but showing similar trends in other subcutaneous fat depots. Our findings support the notion that different fat compartments are regulated by distinct genetic factors.
3121 Internal medicine

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