Ukr.Biochem.J. 2026; Volume 98, Issue 3, May-Jun, pp. 93-100
doi: https://doi.org/10.15407/ubj98.03.093
Association of BNP gene SNP rs198389 with NT-proBNP levels in hypothyroid patients prior to treatment
Ishtar Medical Technical Institute, Iraq;
e-mail: alaas3223@gmail.com
Received: 22 March 2026; Revised: 21 April 2026;
Accepted: 29 May 2026; Available on-line: 18 June 2026
Background. Cardiovascular system is particularly responsive to fluctuations in thyroid hormone levels and hypothyroid patients are at an increased risk of worse cardiovascular outcomes. N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a recognised biomarker for heart failure. Several studies indicate that thyroid disorders may influence blood NT-proBNP level, nevertheless, a consensus has not been established. Objective. To investigate the impact of the single nucleotide polymorphism rs198389 in NT-proBNP gene on the NT-proBNP serum level in patients with untreated primary hypothyroidism. Methods. The study included 100 newly diagnosed hypothyroid patients and 100 healthy controls, with NT-proBNP level measured with enzyme-linked fluorescent assay and genetic analysis conducted via PCR. Results. Our findings indicated significantly elevated NT-proBNP level across all genotypes (CC, CT, TT) in hypothyroid patients compared to controls. This elevation correlated strongly with thyroid-stimulating hormone level. Conclusions. The study demonstrated that NT-proBNP can discriminate between hypothyroid patients and healthy controls, but further studies are needed to establish its role in cardiovascular risk prediction.
Keywords: correlation analysis, hypothyroidism, NT-proBNP, single nucleotide polymorphisms, thyroid-stimulating hormone
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