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NFAT5 and SLC4A10 loci associate with plasma osmolality.

J. Am. Soc. Nephrol. 28, 2311-2321 (2017)
Verlagsversion DOI PMC
Free by publisher
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Disorders of water balance, an excess or deficit of total body water relative to body electrolyte content, are common and ascertained by plasma hypo- or hypernatremia, respectively. We performed a two-stage genome-wide association study meta-analysis on plasma sodium concentration in 45,889 individuals of European descent (stage 1 discovery) and 17,637 additional individuals of European descent (stage 2 replication), and a transethnic meta-analysis of replicated single-nucleotide polymorphisms in 79,506 individuals (63,526 individuals of European descent, 8765 individuals of Asian Indian descent, and 7215 individuals of African descent). In stage 1, we identified eight loci associated with plasma sodium concentration at P<5.0 × 10(-6) Of these, rs9980 at NFAT5 replicated in stage 2 meta-analysis (P=3.1 × 10(-5)), with combined stages 1 and 2 genome-wide significance of P=5.6 × 10(-10) Transethnic meta-analysis further supported the association at rs9980 (P=5.9 × 10(-12)). Additionally, rs16846053 at SLC4A10 showed nominally, but not genome-wide, significant association in combined stages 1 and 2 meta-analysis (P=6.7 × 10(-8)). NFAT5 encodes a ubiquitously expressed transcription factor that coordinates the intracellular response to hypertonic stress but was not previously implicated in the regulation of systemic water balance. SLC4A10 encodes a sodium bicarbonate transporter with a brain-restricted expression pattern, and variant rs16846053 affects a putative intronic NFAT5 DNA binding motif. The lead variants for NFAT5 and SLC4A10 are cis expression quantitative trait loci in tissues of the central nervous system and relevant to transcriptional regulation. Thus, genetic variation in NFAT5 and SLC4A10 expression and function in the central nervous system may affect the regulation of systemic water balance.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Human Genetics ; Hypernatremia ; Hyponatremia ; Water-electrolyte Balance
ISSN (print) / ISBN 1046-6673
e-ISSN 1533-3450
Zeitschrift Journal of the American Society of Nephrology
Quellenangaben Band: 28, Heft: 8, Seiten: 2311-2321 Artikelnummer: , Supplement: ,
Verlag American Society of Nephrology
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Genetic Epidemiology (IGE)
Institute of Epidemiology II (EPI2)
Institute of Human Genetics (IHG)