PMID- 17890443 OWN - NLM STAT- MEDLINE DCOM- 20071218 LR - 20190722 IS - 0009-9147 (Print) IS - 0009-9147 (Linking) VI - 53 IP - 11 DP - 2007 Nov TI - Influence of ScaI and natriuretic peptide (NP) clearance receptor polymorphisms of the NP System on NP concentration in chronic heart failure. PG - 1886-90 AB - BACKGROUND: Genetic variants related to the natriuretic peptide (NP) system [ScaI mutated allele (A1) of the atrial NP (ANP) gene and the C variant of the natriuretic peptide clearance receptor (NPRC) gene] have been identified as independent risk factors for cardiovascular morbidity and mortality. Despite the importance of NPs in heart failure (HF), the role of these polymorphisms in HF has not been evaluated. METHODS: We screened 124 HF patients [mean (SD), age 66 (12) years, 100 men, ejection fraction 32% (10%), New York Heart Association (NYHA) class I-II 65, III-IV 59] for NP concentrations [ANP, brain NP (BNP) and amino-terminal pro-BNP (NT-proBNP)] and for the ScaI and NPRC variants. RESULTS: ScaI polymorphism had no effect on NP concentration in the NYHA I-II subgroup. Conversely, in severe HF, A1 carriers had higher ANP (P < or =0.05), BNP (P <0.01), and NT-proBNP (P <0.01) than A2A2 patients. After multivariate adjustment, A1 presence remained an independent predictor for increased NP. Regarding NPRC polymorphism in mild HF, higher ANP (P <0.05) and BNP (P <0.05) were observed in CC than A allele carriers. After multivariate adjustment, however, this association did not remain significant. In severe HF, the NPRC polymorphism had no effect on NP. CONCLUSIONS: The ScaI polymorphism of the ANP gene might be an important additive genetic factor influencing neurohormonal activation and disease progression in severe HF. The NPRC polymorphism is not an independent determinant of NP concentration in HF. FAU - Vassalle, Cristina AU - Vassalle C AD - Institute of Clinical Physiology, Consiglio Nazionale delle Ricerche, Pisa, Italy. cristina.vassalle@ifc.cnr.it FAU - Andreassi, Maria Grazia AU - Andreassi MG FAU - Prontera, Concetta AU - Prontera C FAU - Fontana, Marianna AU - Fontana M FAU - Zyw, Luc AU - Zyw L FAU - Passino, Claudio AU - Passino C FAU - Emdin, Michele AU - Emdin M LA - eng PT - Journal Article DEP - 20070921 PL - England TA - Clin Chem JT - Clinical chemistry JID - 9421549 RN - 0 (Peptide Fragments) RN - 0 (pro-brain natriuretic peptide (1-76)) RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - 85637-73-6 (Atrial Natriuretic Factor) RN - EC 4.6.1.2 (Receptors, Atrial Natriuretic Factor) RN - EC 4.6.1.2 (atrial natriuretic factor receptor C) SB - IM MH - Aged MH - Atrial Natriuretic Factor/*genetics/metabolism MH - Female MH - Heart Failure/*genetics/metabolism MH - Humans MH - Male MH - Mutation MH - Natriuretic Peptide, Brain/*genetics/metabolism MH - Peptide Fragments/*genetics/metabolism MH - Polymorphism, Genetic MH - Receptors, Atrial Natriuretic Factor/*genetics EDAT- 2007/09/25 09:00 MHDA- 2007/12/19 09:00 CRDT- 2007/09/25 09:00 PHST- 2007/09/25 09:00 [pubmed] PHST- 2007/12/19 09:00 [medline] PHST- 2007/09/25 09:00 [entrez] AID - clinchem.2007.088302 [pii] AID - 10.1373/clinchem.2007.088302 [doi] PST - ppublish SO - Clin Chem. 2007 Nov;53(11):1886-90. doi: 10.1373/clinchem.2007.088302. Epub 2007 Sep 21.