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Pham KO, Hara A, Tsujiguchi H, Suzuki K, Suzuki F, Miyagi S, Kannon T, Sato T, Hosomichi K, Tsuboi H, Nguyen TTT, Shimizu Y, Kambayashi Y, Nakamura M, Takazawa C, Nakamura H, Hamagishi T, Shibata A, Konoshita T, Tajima A, Nakamura H. Association between Vitamin Intake and Chronic Kidney Disease According to a Variant Located Upstream of the PTGS1 Gene: A Cross-Sectional Analysis of Shika Study. Nutrients 2022; 14:2082. [PMID: 35631221 PMCID: PMC9143472 DOI: 10.3390/nu14102082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/02/2022] [Accepted: 05/14/2022] [Indexed: 11/22/2022] Open
Abstract
Chronic kidney disease (CKD) patients have been advised to take vitamins; however, the effects have been controversial. The individual differences in developing CKD might involve genetic variants of inflammation, including variant rs883484 located upstream of the prostaglandin-endoperoxide synthase 1 (PTGS1) gene. We aimed to identify whether the 12 dietary vitamin intake interacts with genotypes of the rs883484 on developing CKD. The population-based, cross-sectional study had 684 Japanese participants (≥40 years old). The study used a validated, brief, self-administered diet history questionnaire to estimate the intake of the dietary vitamins. CKD was defined as estimated glomerular filtration < 60 mL/min/1.73 m2. The study participants had an average age of 62.1 ± 10.8 years with 15.4% minor homozygotes of rs883484, and 114 subjects had CKD. In the fully adjusted model, the higher intake of vitamins, namely niacin (odds ratio (OR) = 0.74, 95% confidence interval (CI): 0.57−0.96, p = 0.024), α-tocopherol (OR = 0.49, 95% CI: 0.26−0.95, p = 0.034), and vitamin C (OR = 0.97, 95% CI: 0.95−1.00, p = 0.037), was independently associated with lower CKD tendency in the minor homozygotes of rs883484. The results suggested the importance of dietary vitamin intake in the prevention of CKD in middle-aged to older-aged Japanese with minor homozygous of rs883484 gene variant.
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Affiliation(s)
- Kim-Oanh Pham
- Information Management Department, Asia Center for Air Pollution Research, Niigata City 950-2144, Japan
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Akinori Hara
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Hiromasa Tsujiguchi
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Keita Suzuki
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Fumihiko Suzuki
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
- Community Medicine Support Dentistry, Faculty of Dentist, Ohu University Hospital, Koriyama 963-8611, Japan
| | - Sakae Miyagi
- Innovative Clinical Research Center, Takaramachi Campus, Kanazawa University, Kanazawa City 920-8640, Japan;
| | - Takayuki Kannon
- Department of Bioinformatics and Genomics, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (T.K.); (T.S.); (K.H.); (A.T.)
| | - Takehiro Sato
- Department of Bioinformatics and Genomics, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (T.K.); (T.S.); (K.H.); (A.T.)
| | - Kazuyoshi Hosomichi
- Department of Bioinformatics and Genomics, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (T.K.); (T.S.); (K.H.); (A.T.)
| | - Hirohito Tsuboi
- Institute of Medical, Pharmaceutical and Health Sciences, Kakuma Campus, Kanazawa University, Kanazawa City 920-1192, Japan;
| | - Thao Thi Thu Nguyen
- Department of Epidemiology, Faculty of Public Health, Haiphong University of Medicine and Pharmacy, Hai Phong 180000, Vietnam;
| | - Yukari Shimizu
- Department of Nursing, Faculty of Health Sciences, Komatsu University, Komatsu City 923-0961, Japan;
| | - Yasuhiro Kambayashi
- Department of Public Health, Faculty of Veterinary Medicine, Okayama University of Science, Imabari 794-8555, Japan;
| | - Masaharu Nakamura
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Chie Takazawa
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Haruki Nakamura
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Toshio Hamagishi
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Aki Shibata
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
| | - Tadashi Konoshita
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Tsuruga 914-0055, Japan;
| | - Atsushi Tajima
- Department of Bioinformatics and Genomics, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (T.K.); (T.S.); (K.H.); (A.T.)
| | - Hiroyuki Nakamura
- Department of Hygiene and Public Health, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa City 920-8640, Japan; (A.H.); (H.T.); (K.S.); (F.S.); (M.N.); (C.T.); (H.N.); (T.H.); (A.S.); (H.N.)
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Sierra-Ramos C, Velazquez-Garcia S, Keskus AG, Vastola-Mascolo A, Rodríguez-Rodríguez AE, Luis-Lima S, Hernández G, Navarro-González JF, Porrini E, Konu O, Alvarez de la Rosa D. Increased SGK1 activity potentiates mineralocorticoid/NaCl-induced kidney injury. Am J Physiol Renal Physiol 2021; 320:F628-F643. [PMID: 33586495 DOI: 10.1152/ajprenal.00505.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Serum and glucocorticoid-regulated kinase 1 (SGK1) stimulates aldosterone-dependent renal Na+ reabsorption and modulates blood pressure. In addition, genetic ablation or pharmacological inhibition of SGK1 limits the development of kidney inflammation and fibrosis in response to excess mineralocorticoid signaling. In this work, we tested the hypothesis that a systemic increase in SGK1 activity would potentiate mineralocorticoid/salt-induced hypertension and kidney injury. To that end, we used a transgenic mouse model with increased SGK1 activity. Mineralocorticoid/salt-induced hypertension and kidney damage was induced by unilateral nephrectomy and treatment with deoxycorticosterone acetate and NaCl in the drinking water for 6 wk. Our results show that although SGK1 activation did not induce significantly higher blood pressure, it produced a mild increase in glomerular filtration rate, increased albuminuria, and exacerbated glomerular hypertrophy and fibrosis. Transcriptomic analysis showed that extracellular matrix- and immune response-related terms were enriched in the downregulated and upregulated genes, respectively, in transgenic mice. In conclusion, we propose that systemically increased SGK1 activity is a risk factor for the development of mineralocorticoid-dependent kidney injury in the context of low renal mass and independently of blood pressure.NEW & NOTEWORTHY Increased activity of the protein kinase serum and glucocorticoid-regulated kinase 1 may be a risk factor for accelerated renal damage. Serum and glucocorticoid-regulated kinase 1 expression could be a marker for the rapid progression toward chronic kidney disease and a potential therapeutic target to slow down the process.
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Affiliation(s)
- Catalina Sierra-Ramos
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Silvia Velazquez-Garcia
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Ayse G Keskus
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey
| | - Arianna Vastola-Mascolo
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | | | - Sergio Luis-Lima
- Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Departamento de Medicina Interna, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Guadalberto Hernández
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Juan F Navarro-González
- Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Unidad de Investigación y Servicio de Nefrología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Esteban Porrini
- Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Departamento de Medicina Interna, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Ozlen Konu
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey.,Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey.,UNAM-Institute of Materials Science and Nanotechnology, Ankara, Turkey
| | - Diego Alvarez de la Rosa
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
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Sargazi S, Heidari Nia M, Mirani Sargazi F, Sheervalilou R, Saravani R, Bahrami S, Mirinejad S, Alidadi A. Functional miR143/145 Cluster Variants and Haplotypes Are Associated with Chronic Kidney Disease: a Preliminary Case-Control Study and Computational Analyses. Appl Biochem Biotechnol 2021; 193:1532-1544. [PMID: 33484447 DOI: 10.1007/s12010-021-03489-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 01/07/2021] [Indexed: 12/19/2022]
Abstract
MiR-143/145 cluster is a novel transcriptional target of many signaling pathways, with variations within this cluster contributed to the risk of multiple diseases. To date, no data regarding the link between miR143/145 cluster polymorphisms and the risk of developing chronic kidney disease (CKD) has been reported. Hence, we aimed to examine such association in a population of Iranian ancestry. In this preliminary study, 276 CKD patients and 300 unrelated age and sex-matched healthy controls were recruited. Genotyping was performed by PCR-RFLP and allele-specific-PCR methods. Computational analyses were performed to predict the potential effects of the variants. Our findings indicated that rs41291957, rs12659504, and rs353292 polymorphisms were positively associated with CKD, while rs4705342 and rs4705343 polymorphisms demonstrated a significant negative association with the disease. Moreover, a significant association was observed between CC + TC and TT genotypes and CKD stages. We found that AACTT, AATTC, AATTT, GATTC, GATTT, and GGCTT haplotypes significantly enhanced the risk of CKD compared with the Grs41291957AArs12659504Crs353292Trs4705342Trs4705343 haplotype. Computational analysis showed that rs353292, rs4705342, and rs4705343 might alter the binding of the transcription factors in this gene cluster. We found that miR-143/145 cluster polymorphisms were associated with CKD risk in a sample of the Iranian population. Replicated studies on different ethnicities are necessary to investigate the association between these promoter variants and clinical outcomes.
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Affiliation(s)
- Saman Sargazi
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Milad Heidari Nia
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Fariba Mirani Sargazi
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Roghayeh Sheervalilou
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Ramin Saravani
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran.
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Sara Bahrami
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Shekoufeh Mirinejad
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Ali Alidadi
- Nephrology Department, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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Reyes-Gibby CC, Wang J, Silvas MRT, Yu RK, Hanna EY, Shete S. Genome-wide association study suggests common variants within RP11-634B7.4 gene influencing severe pre-treatment pain in head and neck cancer patients. Sci Rep 2016; 6:34206. [PMID: 27670397 PMCID: PMC5037456 DOI: 10.1038/srep34206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/09/2016] [Indexed: 12/20/2022] Open
Abstract
Pain is often one of the first signs of squamous cell carcinoma of the head and neck (HNSCC). Pain at diagnosis is an important prognostic marker for the development of chronic pain, and importantly, for the overall survival time. To identify variants influencing severe pre-treatment pain in 1,368 patients newly diagnosed with HNSCC, we conducted a genome-wide association study based on 730,525 tagging SNPs. The patients were all previously untreated for cancer. About 15% of the patients had severe pre-treatment pain, defined as pain score ≥7 (0 = “no pain” and 10 = “worst pain”). We identified 3 common genetic variants in high linkage disequilibrium for severe pre-treatment pain, representing one genomic region at 1q44 (rs3862188, P = 3.45 × 10−8; rs880143, P = 3.45 × 10−8; and rs7526880, P = 4.92 × 10−8), which maps to the RP11-634B7.4 gene, a novel antisense gene to three olfactory receptor genes. Olfactory receptor genes, upstream effectors of the MAPK signaling cascade, might be novel target genes for pain in HNSCC patients. Future experimental validation to explore biological mechanisms will be key to defining the role of the intronic variants and non-coding RNA for pain in patients with HNSCC.
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Affiliation(s)
- Cielito C Reyes-Gibby
- Department of Emergency Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jian Wang
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Mary Rose T Silvas
- Department of Emergency Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Robert K Yu
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Ehab Y Hanna
- Department of Head &Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Sanjay Shete
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.,Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
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Apolipoprotein E gene variants on the risk of end stage renal disease. PLoS One 2013; 8:e83367. [PMID: 24349494 PMCID: PMC3862680 DOI: 10.1371/journal.pone.0083367] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 11/01/2013] [Indexed: 11/19/2022] Open
Abstract
Objective End-stage renal disease (ESRD) is a severe health concern over the world. Associations between apolipoprotein E (apoE) gene polymorphisms and the risk of ESRD remained inconclusive. This study aimed to investigate the association between apoE gene polymorphisms and ESRD susceptibility. Methods Databases including PubMed, Embase, Web of Science and the Cochrane Library were searched to find relevant studies. Meta-analysis method was used synthesize the eligible studies. Results Sixteen pertinent case-control studies which included 3510 cases and 13924 controls were analyzed. A significant association was found between ε2 allele and the ESRD risk (odds ratio (OR) = 1.30, 95% confidence interval (CI) 1.15–1.46, P < 0.0001; I2 = 18%, P for heterogeneity = 0.24). The ε2ε3, ε2ε4, ε3ε3, ε3ε4, ε4ε4, ε3 and ε4 were not associated with the susceptibility of ESRD. In the subgroup analysis by ethnicity, there was a statistically significant association between ε2ε3 or ε2 allele and ESRD risk in East Asians (OR = 1.66, 95% CI 1.31–2.10, P < 0.0001; OR = 1.62, 95% CI 1.31–2.01, P < 0.0001, respectively), but not in Caucasians. E2 carriers had higher plasma apoE (mean difference = 16.24 mg/L, 95% CI 7.76-24.73, P = 0.0002) than the (ε3 + ε4) carriers in patients with ESRD. The publication bias was not significant. Conclusion The ε2 allele of apoE gene might increase the risk of ESRD. E2 carriers expressed higher level of plasma apoE in patients with ESRD. More well-designed studies are needed to confirm these associations in the future.
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Yoshida T, Kato K, Oguri M, Horibe H, Kawamiya T, Yokoi K, Fujimaki T, Watanabe S, Satoh K, Aoyagi Y, Tanaka M, Yoshida H, Shinkai S, Nozawa Y, Yamada Y. Association of a polymorphism of BTN2A1 with chronic kidney disease in individuals with or without hypertension or diabetes mellitus. Exp Ther Med 2011; 2:325-331. [PMID: 22977505 DOI: 10.3892/etm.2011.191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Accepted: 01/04/2011] [Indexed: 11/06/2022] Open
Abstract
Hypertension and diabetes mellitus are important risk factors for chronic kidney disease (CKD). We previously showed that the C→T polymorphism (rs6929846) of BTN2A1 was significantly associated with myocardial infarction. The purpose of the present study was to examine an association of rs6929846 of BTN2A1 with CKD in individuals with or without hypertension or diabetes mellitus, thereby contributing to the personalized prevention of CKD in such individuals separately. The study population comprised 7,542 unrelated individuals, including 2,289 subjects with CKD [estimated glomerular filtration rate (eGFR) <60 ml/min/1.73 m(2)] and 5,253 controls (eGFR ≥60 ml/min/1.73 m(2)) with or without hypertension or diabetes mellitus. The Chi-square test, a multivariable logistic regression analysis with adjustment for covariates, as well as a stepwise forward selection procedure revealed that the C→T polymorphism (rs6929846) of BTN2A1 was significantly associated with CKD in normotensive individuals, in diabetic individuals and in individuals with hypertension and diabetes mellitus, or without either condition, with the T allele representing a risk factor for CKD. Stratification of subjects based on hypertension or diabetes mellitus may thus be important in order to achieve personalized prevention of CKD with the use of genetic information.
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Affiliation(s)
- Tetsuro Yoshida
- Department of Cardiovascular Medicine, Onga Nakama Medical Association Onga Hospital, Onga
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Association of genetic variants with chronic kidney disease in Japanese individuals with or without hypertension or diabetes mellitus. Exp Ther Med 2010; 1:137-145. [PMID: 23136606 DOI: 10.3892/etm_00000023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Accepted: 09/08/2009] [Indexed: 11/05/2022] Open
Abstract
Hypertension and diabetes mellitus are important risk factors for chronic kidney disease (CKD). The purpose of the present study was to identify genetic variants that confer susceptibility to CKD in individuals with or without hypertension or diabetes mellitus, thereby contributing to the personalized prevention of CKD in such individuals separately. The study population comprised 5835 unrelated Japanese individuals, including 1763 subjects with CKD and 4072 controls. The 150 polymorphisms were selected by genome-wide association studies of ischemic stroke and myocardial infarction with the use of the GeneChip Human Mapping 500K Array Set (Affymetrix). The genotypes for these polymorphisms were determined by a method that combines polymerase chain reaction and sequence-specific oligonucleotide probes with suspension array technology. The χ(2) test, multivariable logistic regression analysis with adjustment for covariates, as well as a stepwise forward selection procedure revealed that two different polymorphisms were significantly (P<0.005) associated with the prevalence of CKD in individuals with or without hypertension or diabetes mellitus: the A→G (Lys625Arg) polymorphism of CDH4 (rs6142884) in individuals without diabetes mellitus, and the C→T polymorphism of PTPRN2 (rs1638021) in individuals with hypertension and diabetes mellitus. No polymorphism was significantly associated with CKD in individuals with or without hypertension, in those with diabetes mellitus, or in those without hypertension or diabetes mellitus. Stratification of subjects based on hypertension or diabetes mellitus may thus be fundamental to achieving the personalized prevention of CKD with the use of genetic information.
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