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The association between Single Nucleotide Polymorphisms of Klotho Gene and Mortality in Elderly Men : The MrOS Sweden Study

Wu, Ping Hsun ; Westerberg, Per Anton ; Kindmark, Andreas ; Tivesten, Åsa ; Karlsson, Magnus K. LU ; Mellström, Dan ; Ohlsson, Claes ; Fellström, Bengt ; Linde, Torbjörn and Ljunggren, Östen (2020) In Scientific Reports 10(1).
Abstract

The Klotho (KL) gene is involved in phosphate homeostasis. Polymorphisms in this gene have been reported to be associated with the risk of cardiovascular disease. Here we used computational tools to predict the damage-associated single nucleotide polymorphisms (SNPs) in the human KL gene. We further investigated the association of SNPs in the KL gene and mortality in the Swedish multicenter prospective Osteoporotic Fractures in Men (MrOS) cohort. This study included 2921 men (aged 69–81 years) with mean 4.49 ± 1.03 years follow-up. 18 SNPs in the KL gene were genotyped using Sequenom. These SNPs were identified by in silico tools for the coding and noncoding genome to predict the damaging SNPs. After quality analyses, SNPs were analyzed... (More)

The Klotho (KL) gene is involved in phosphate homeostasis. Polymorphisms in this gene have been reported to be associated with the risk of cardiovascular disease. Here we used computational tools to predict the damage-associated single nucleotide polymorphisms (SNPs) in the human KL gene. We further investigated the association of SNPs in the KL gene and mortality in the Swedish multicenter prospective Osteoporotic Fractures in Men (MrOS) cohort. This study included 2921 men (aged 69–81 years) with mean 4.49 ± 1.03 years follow-up. 18 SNPs in the KL gene were genotyped using Sequenom. These SNPs were identified by in silico tools for the coding and noncoding genome to predict the damaging SNPs. After quality analyses, SNPs were analyzed for mortality risk using two steps approach on logistic regression model screening and then Cox regression model confirmation. Two non-synonymous SNPs rs9536314 and rs9527025 were found to be potentially damaging SNPs that affect KL protein stability and expression. However, these two SNPs were not statistically significantly associated with all-cause mortality (crude Hazard ratio [HR] 1.72, 95% confidence interval [CI] 0.96–3.07 in rs9536314; crude HR 1.82, 95% CI 0.998–3.33 in rs9527025) or cardiovascular mortality (crude HR 1.52, 95% CI 0.56–4.14 in rs9536314; crude HR 1.54, 95% CI 0.55–4.33 in rs9527025) in additive model using Cox regression analysis. In conclusion, these two potentially damaging SNPs (rs9536314 and rs9527025) in the KL gene were not associated with all-cause mortality or cardiovascular mortality in MrOs cohort. Larger scales studies and meta-analysis are needed to confirm the correlation between polymorphisms of the KL gene and mortality.

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organization
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type
Contribution to journal
publication status
published
subject
in
Scientific Reports
volume
10
issue
1
article number
10243
publisher
Nature Publishing Group
external identifiers
  • scopus:85086784967
  • pmid:32581247
ISSN
2045-2322
DOI
10.1038/s41598-020-66517-5
language
English
LU publication?
yes
id
d34bff70-3bd9-43a1-991a-980829977a27
date added to LUP
2020-07-07 08:40:42
date last changed
2024-06-26 19:09:05
@article{d34bff70-3bd9-43a1-991a-980829977a27,
  abstract     = {{<p>The Klotho (KL) gene is involved in phosphate homeostasis. Polymorphisms in this gene have been reported to be associated with the risk of cardiovascular disease. Here we used computational tools to predict the damage-associated single nucleotide polymorphisms (SNPs) in the human KL gene. We further investigated the association of SNPs in the KL gene and mortality in the Swedish multicenter prospective Osteoporotic Fractures in Men (MrOS) cohort. This study included 2921 men (aged 69–81 years) with mean 4.49 ± 1.03 years follow-up. 18 SNPs in the KL gene were genotyped using Sequenom. These SNPs were identified by in silico tools for the coding and noncoding genome to predict the damaging SNPs. After quality analyses, SNPs were analyzed for mortality risk using two steps approach on logistic regression model screening and then Cox regression model confirmation. Two non-synonymous SNPs rs9536314 and rs9527025 were found to be potentially damaging SNPs that affect KL protein stability and expression. However, these two SNPs were not statistically significantly associated with all-cause mortality (crude Hazard ratio [HR] 1.72, 95% confidence interval [CI] 0.96–3.07 in rs9536314; crude HR 1.82, 95% CI 0.998–3.33 in rs9527025) or cardiovascular mortality (crude HR 1.52, 95% CI 0.56–4.14 in rs9536314; crude HR 1.54, 95% CI 0.55–4.33 in rs9527025) in additive model using Cox regression analysis. In conclusion, these two potentially damaging SNPs (rs9536314 and rs9527025) in the KL gene were not associated with all-cause mortality or cardiovascular mortality in MrOs cohort. Larger scales studies and meta-analysis are needed to confirm the correlation between polymorphisms of the KL gene and mortality.</p>}},
  author       = {{Wu, Ping Hsun and Westerberg, Per Anton and Kindmark, Andreas and Tivesten, Åsa and Karlsson, Magnus K. and Mellström, Dan and Ohlsson, Claes and Fellström, Bengt and Linde, Torbjörn and Ljunggren, Östen}},
  issn         = {{2045-2322}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Scientific Reports}},
  title        = {{The association between Single Nucleotide Polymorphisms of Klotho Gene and Mortality in Elderly Men : The MrOS Sweden Study}},
  url          = {{http://dx.doi.org/10.1038/s41598-020-66517-5}},
  doi          = {{10.1038/s41598-020-66517-5}},
  volume       = {{10}},
  year         = {{2020}},
}