scholarly journals Exome-based genome-wide association study and risk assessment using genetic risk score to prostate cancer in the Korean population

Oncotarget ◽  
2017 ◽  
Vol 8 (27) ◽  
pp. 43934-43943 ◽  
Author(s):  
Jong Jin Oh ◽  
Soo Ji Lee ◽  
Joo-Yeon Hwang ◽  
Dokyoon Kim ◽  
Sang Eun Lee ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Risk Assessment ◽  
Association Study ◽  
Risk Score ◽  
Genetic Risk ◽  
Genome Wide Association Study ◽  
Genetic Risk Score ◽  
Genome Wide Association ◽  
Korean Population ◽  
Genome Wide

scholarly journals A Genome-Wide Association Study of the Frailty Index Highlights Synaptic Pathways in Aging

2019 ◽  
Author(s):  
Janice L Atkins ◽  
Juulia Jylhävä ◽  
Nancy L Pedersen ◽  
Patrik K Magnusson ◽  
Yi Lu ◽  
...  
Keyword(s):  
Association Study ◽  
Risk Score ◽  
Genetic Risk ◽  
Genome Wide Association Study ◽  
Genetic Risk Score ◽  
Frailty Index ◽  
Genome Wide Association ◽  
Uk Biobank ◽  
Genome Wide ◽  
A Genome

ABSTRACTFrailty is a common geriatric syndrome, strongly associated with disability, mortality and hospitalisation. The mechanisms underlying frailty are multifactorial and not well understood, but a genetic basis has been suggested with heritability estimates between 19 and 45%. Understanding the genetic determinants and biological mechanisms underpinning frailty may help to delay or even prevent frailty. We performed a genome-wide association study (GWAS) of a frailty index (FI) in European descent participants from UK Biobank (n=164,610, aged 60-70 years). FI calculation was based on 49 self-reported items on symptoms, disabilities and diagnosed diseases. We identified 26 independent genetic signals at 24 loci associated with the FI (p<5*10−8). Many of these loci have previously been associated with traits such as body mass index, cardiovascular disease, smoking, HLA proteins, depression and neuroticism; however, three appear to be novel. The estimated single nucleotide polymorphism (SNP) heritability of the FI was 14% (0.14, SE 0.006). A genetic risk score for the FI, derived solely from the UK Biobank data, was significantly associated with FI in the Swedish TwinGene study (n=10,616, beta: 0.11, 95% CI: 0.02-0.20, p=0.015). In pathway analysis, genes associated with synapse function were significantly enriched (p<3*10−6). We also used Mendelian randomization to identify modifiable traits and exposures that may affect the risk of frailty, with a higher educational attainment genetic risk score being associated with a lower risk of frailty. Risk of frailty is influenced by many genetic factors, including well-known disease risk factors and mental health, with particular emphasis on synapse maintenance pathways.

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