Expressive

rs12098973 (NTM): Cardiac Troponin T Variant

Key takeaways

  • This variant near the NTM gene was examined in a genome-wide study of cardiac troponin T, a blood protein that rises when the heart is under stress.
  • Highly sensitive cardiac troponin T can detect heart muscle injury at concentrations ten times lower than older standard assays.
  • The research included over 11,500 European- and African-American adults from two long-running heart disease studies.
  • Specific effect sizes for rs12098973 are not in the available evidence; findings should be treated as preliminary.

Key takeaways

  • This variant near the NTM gene was examined in a genome-wide study of highly sensitive cardiac troponin T (hs-cTnT), a blood protein that signals heart muscle stress.
  • Highly sensitive troponin T detects heart muscle injury at concentrations ten times lower than conventional assays, enabling earlier detection of cardiovascular risk.
  • The supporting research involved approximately 11,500 European- and African-American adults from two long-running prospective studies, ARIC and CHS.
  • Specific effect sizes for rs12098973 are not present in the available study excerpt; findings for this locus should be treated as preliminary.

What the research says A meta-analysis of genome-wide association data examined hs-cTnT levels - a blood protein released when heart muscle cells (cardiomyocytes) are damaged or stressed - in 9,491 European-Americans and 2,053 African-Americans from the Atherosclerosis Risk in Communities (ARIC) Study and the Cardiovascular Health Study (CHS), all free of coronary heart disease (CHD) and heart failure (HF) at the time of measurement. Fixed-effect meta-analysis was applied across both cohorts and race strata using genome-wide SNP data imputed to HapMap reference panels. The provided study text does not include a specific p-value, beta coefficient, or odds ratio for rs12098973 itself.

Reported associations

  • Highly sensitive cardiac troponin T (hs-cTnT) levels: This locus, near the NTM gene, was examined in a GWAS of hs-cTnT; specific association statistics for it are not available in the provided study text.
  • Incident heart failure: In the broader GWAS, a separate variant, rs12564445, was significantly associated with new-onset heart failure in ARIC European-Americans (hazard ratio = 1.16, p = 0.004).
  • Coronary heart disease (CHD): The study found that hs-cTnT-associated SNPs overall were not significantly associated with CHD in a large case-control analysis.

Evidence quality The underlying GWAS enrolled approximately 11,500 individuals across two well-characterized prospective cohorts. Standard genotyping quality controls were applied - including a call rate threshold of at least 95% and Hardy-Weinberg equilibrium filters - along with HapMap-based imputation. The two genome-wide significant loci the study reported were near NCOA2 (chromosome 8q13, p = 9.06 × 10^-9) and within the TNNT2 gene (chromosome 1q32, p = 9.06 × 10^-8); neither corresponds to the NTM locus. The provided study text does not contain an effect size or significance value for rs12098973, and no independent replication data for this locus are referenced in the available material. Evidence for this specific variant should therefore be considered preliminary and limited to a single study context.

Lifestyle considerations No lifestyle considerations on file for this variant.

Frequently asked questions

What is rs12098973?

rs12098973 is a single-nucleotide polymorphism - a one-letter change in the DNA code - located near the NTM gene. It was examined in a genome-wide association study looking at cardiac troponin T levels in the blood.

What is highly sensitive cardiac troponin T?

Highly sensitive cardiac troponin T (hs-cTnT) is a version of the cardiac troponin T blood test that can detect the protein at concentrations roughly ten times lower than conventional assays. It is used to identify subtle signs of heart muscle stress or injury.

Is rs12098973 linked to heart failure?

The study examined this variant in the context of cardiac troponin T levels, which are associated with heart failure risk. However, the available study text does not include specific association data for rs12098973 and heart failure as a direct outcome.

How reliable is the evidence for rs12098973?

The evidence is preliminary. The supporting study is a single genome-wide analysis in approximately 11,500 adults, and specific statistical data for rs12098973 are not present in the available study excerpt. Independent replication has not been reported in the current record.

Was rs12098973 associated with coronary heart disease?

The broader study reported that hs-cTnT-associated variants overall were not significantly linked to coronary heart disease in a large case-control analysis. No specific finding for rs12098973 and coronary heart disease is available in the provided evidence.