Genetic variations of SCNA7 and blood pressure potassium interaction
Abstract Introduction The sodium voltage-gated channel alpha subunit 7 (SCN7A) has been associated to renal Na regulation and hypertension. This study explores the relationship between blood pressure (BP) and urinary overnight Na/K ratio (UONaK) in hypertensives (HT) and normotensive (NT) subjects f...
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| creator | Delgado, C Delgado-Lelievre, M Lelievre, D Delgado-Almeida, A |
| description | Abstract
Introduction
The sodium voltage-gated channel alpha subunit 7 (SCN7A) has been associated to renal Na regulation and hypertension. This study explores the relationship between blood pressure (BP) and urinary overnight Na/K ratio (UONaK) in hypertensives (HT) and normotensive (NT) subjects from from National Heart, Lung and Blood Institute funded, Family Blood Pressure Program (FBPP) that were genotyped for 3 SNPs for SCN7A: CV2161217, CV 356958 and CV433036.
Hypothesis
Genetic variations in the SCNA7 are differently associated to BP and UONaK in HT and NT.
Methods
1,749 subjects genotyped for SCN7A SNPs CV2161217, CV 356958 and CV433036 were analyzed from FBPP. Subjects with diastolic BP (DBP) ≥80 or systolic BP (SBP) ≥130 mmHg were classified HTN; subjects with SBP |
| doi_str_mv | 10.1093/ehjci/ehaa946.2702 |
| format | Article |
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Introduction
The sodium voltage-gated channel alpha subunit 7 (SCN7A) has been associated to renal Na regulation and hypertension. This study explores the relationship between blood pressure (BP) and urinary overnight Na/K ratio (UONaK) in hypertensives (HT) and normotensive (NT) subjects from from National Heart, Lung and Blood Institute funded, Family Blood Pressure Program (FBPP) that were genotyped for 3 SNPs for SCN7A: CV2161217, CV 356958 and CV433036.
Hypothesis
Genetic variations in the SCNA7 are differently associated to BP and UONaK in HT and NT.
Methods
1,749 subjects genotyped for SCN7A SNPs CV2161217, CV 356958 and CV433036 were analyzed from FBPP. Subjects with diastolic BP (DBP) ≥80 or systolic BP (SBP) ≥130 mmHg were classified HTN; subjects with SBP <130 and DBP <80 mmHg were classified as NT. UONAK was calculated by dividing overnight Na by K concentration. Correlation analysis done with partial variables (use of antihypertensive drug, use of diuretics, overnight urine creatinine).
Results
For the CV2161217, HTN group (n=1,030), 52% had C/C, 39% C/T and 9% T/T. In NT group (n=719), 52% had C/C, 38% C/T and 10% T/T. In the HT group, subjects with CC genotype showed strong correlation between DBP and UONaK (Fig 1a) while no significant correlation with SBP. Those with CT genotype maintained the correlation between SBP and UONaK (r=0.10, p=0.03) with no correlation with SBP. The TT showed no correlation between UONaK and SBP or DBP. In the NT, subjects with TT genotype showed strong correlation between DBP and UONaK (Fig 1b) and with SB (r=0.256, p=0.03). Those with CT or TT genotypes showed no correlation between UONaK and SBP or DBP. Similar finding were obtained for CV356958 SNP; no similar association was observed in the CV433036 SNP.
Conclusions
Subjects with the genetic variations in the SCNA7, such as CV2161217 and CV 356958 SNPs, showed significant correlation between blood pressure and overnight urinary sodium potassium. This finding could have important implications in non dipping status observed in some hypertensive patients.
Funding Acknowledgement
Type of funding source: None</description><identifier>ISSN: 0195-668X</identifier><identifier>EISSN: 1522-9645</identifier><identifier>DOI: 10.1093/ehjci/ehaa946.2702</identifier><language>eng</language><publisher>Oxford University Press</publisher><ispartof>European heart journal, 2020-11, Vol.41 (Supplement_2)</ispartof><rights>Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2020. For permissions, please email: journals.permissions@oup.com. 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Delgado, C</creatorcontrib><creatorcontrib>Delgado-Lelievre, M</creatorcontrib><creatorcontrib>Lelievre, D</creatorcontrib><creatorcontrib>Delgado-Almeida, A</creatorcontrib><title>Genetic variations of SCNA7 and blood pressure potassium interaction</title><title>European heart journal</title><description>Abstract
Introduction
The sodium voltage-gated channel alpha subunit 7 (SCN7A) has been associated to renal Na regulation and hypertension. This study explores the relationship between blood pressure (BP) and urinary overnight Na/K ratio (UONaK) in hypertensives (HT) and normotensive (NT) subjects from from National Heart, Lung and Blood Institute funded, Family Blood Pressure Program (FBPP) that were genotyped for 3 SNPs for SCN7A: CV2161217, CV 356958 and CV433036.
Hypothesis
Genetic variations in the SCNA7 are differently associated to BP and UONaK in HT and NT.
Methods
1,749 subjects genotyped for SCN7A SNPs CV2161217, CV 356958 and CV433036 were analyzed from FBPP. Subjects with diastolic BP (DBP) ≥80 or systolic BP (SBP) ≥130 mmHg were classified HTN; subjects with SBP <130 and DBP <80 mmHg were classified as NT. UONAK was calculated by dividing overnight Na by K concentration. Correlation analysis done with partial variables (use of antihypertensive drug, use of diuretics, overnight urine creatinine).
Results
For the CV2161217, HTN group (n=1,030), 52% had C/C, 39% C/T and 9% T/T. In NT group (n=719), 52% had C/C, 38% C/T and 10% T/T. In the HT group, subjects with CC genotype showed strong correlation between DBP and UONaK (Fig 1a) while no significant correlation with SBP. Those with CT genotype maintained the correlation between SBP and UONaK (r=0.10, p=0.03) with no correlation with SBP. The TT showed no correlation between UONaK and SBP or DBP. In the NT, subjects with TT genotype showed strong correlation between DBP and UONaK (Fig 1b) and with SB (r=0.256, p=0.03). Those with CT or TT genotypes showed no correlation between UONaK and SBP or DBP. Similar finding were obtained for CV356958 SNP; no similar association was observed in the CV433036 SNP.
Conclusions
Subjects with the genetic variations in the SCNA7, such as CV2161217 and CV 356958 SNPs, showed significant correlation between blood pressure and overnight urinary sodium potassium. This finding could have important implications in non dipping status observed in some hypertensive patients.
Funding Acknowledgement
Type of funding source: None</description><issn>0195-668X</issn><issn>1522-9645</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqNkE1OwzAYRC0EEqFwAVa-QMrn38TLKkBBqmBBF-ws23GEqzaO7ASJ29PQHoDNzGbeLB5C9wSWBBR78F87F45pjOJySSugF6gggtJSSS4uUQFEiVLK-vMa3eS8A4BaElmgx7Xv_Rgc_jYpmDHEPuPY4Y_mbVVh07fY7mNs8ZB8zlPyeIijyTlMBxz60SfjZuQWXXVmn_3duRdo-_y0bV7Kzfv6tVltSlcTWloHRnSkppaAZNayynne-VZWxEmmgFJleK0kA2mt8o5K5bgSNVWCG3CcLRA93boUc06-00MKB5N-NAE9a9B_GvRZg541HKHyBMVp-M_-F7lZYa0</recordid><startdate>20201101</startdate><enddate>20201101</enddate><creator>Delgado, C</creator><creator>Delgado-Lelievre, M</creator><creator>Lelievre, D</creator><creator>Delgado-Almeida, A</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20201101</creationdate><title>Genetic variations of SCNA7 and blood pressure potassium interaction</title><author>Delgado, C ; Delgado-Lelievre, M ; Lelievre, D ; Delgado-Almeida, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c812-bc0a5f182b1063bb37ce4fed671c6390229a4896306bb9ec269c49582954a0c43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Delgado, C</creatorcontrib><creatorcontrib>Delgado-Lelievre, M</creatorcontrib><creatorcontrib>Lelievre, D</creatorcontrib><creatorcontrib>Delgado-Almeida, A</creatorcontrib><collection>CrossRef</collection><jtitle>European heart journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Delgado, C</au><au>Delgado-Lelievre, M</au><au>Lelievre, D</au><au>Delgado-Almeida, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Genetic variations of SCNA7 and blood pressure potassium interaction</atitle><jtitle>European heart journal</jtitle><date>2020-11-01</date><risdate>2020</risdate><volume>41</volume><issue>Supplement_2</issue><issn>0195-668X</issn><eissn>1522-9645</eissn><abstract>Abstract
Introduction
The sodium voltage-gated channel alpha subunit 7 (SCN7A) has been associated to renal Na regulation and hypertension. This study explores the relationship between blood pressure (BP) and urinary overnight Na/K ratio (UONaK) in hypertensives (HT) and normotensive (NT) subjects from from National Heart, Lung and Blood Institute funded, Family Blood Pressure Program (FBPP) that were genotyped for 3 SNPs for SCN7A: CV2161217, CV 356958 and CV433036.
Hypothesis
Genetic variations in the SCNA7 are differently associated to BP and UONaK in HT and NT.
Methods
1,749 subjects genotyped for SCN7A SNPs CV2161217, CV 356958 and CV433036 were analyzed from FBPP. Subjects with diastolic BP (DBP) ≥80 or systolic BP (SBP) ≥130 mmHg were classified HTN; subjects with SBP <130 and DBP <80 mmHg were classified as NT. UONAK was calculated by dividing overnight Na by K concentration. Correlation analysis done with partial variables (use of antihypertensive drug, use of diuretics, overnight urine creatinine).
Results
For the CV2161217, HTN group (n=1,030), 52% had C/C, 39% C/T and 9% T/T. In NT group (n=719), 52% had C/C, 38% C/T and 10% T/T. In the HT group, subjects with CC genotype showed strong correlation between DBP and UONaK (Fig 1a) while no significant correlation with SBP. Those with CT genotype maintained the correlation between SBP and UONaK (r=0.10, p=0.03) with no correlation with SBP. The TT showed no correlation between UONaK and SBP or DBP. In the NT, subjects with TT genotype showed strong correlation between DBP and UONaK (Fig 1b) and with SB (r=0.256, p=0.03). Those with CT or TT genotypes showed no correlation between UONaK and SBP or DBP. Similar finding were obtained for CV356958 SNP; no similar association was observed in the CV433036 SNP.
Conclusions
Subjects with the genetic variations in the SCNA7, such as CV2161217 and CV 356958 SNPs, showed significant correlation between blood pressure and overnight urinary sodium potassium. This finding could have important implications in non dipping status observed in some hypertensive patients.
Funding Acknowledgement
Type of funding source: None</abstract><pub>Oxford University Press</pub><doi>10.1093/ehjci/ehaa946.2702</doi></addata></record> |
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| source | Oxford University Press Journals All Titles (1996-Current); Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| title | Genetic variations of SCNA7 and blood pressure potassium interaction |
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