Table 6.
Transcripts identified in microarray screen associated with cardiovascular function
| Gene | LRVAS vs. WTVAS | LRVAD vs. WTVAS | Function |
|---|---|---|---|
| Angpt2 | −1.4 (0.003) FDR = 0.42 | −1.5 (0.0006) FDR = 0.42 | Angiopoietin 2 is significantly increased in acute decompensated heart failure and is a predictor of poor outcome (41) |
| Casq2 | −1.1 (0.10) FDR = 0.43 | −1.5 (0.0007) FDR = 0.43 | Calsequestrin 2 buffers sarcoplasmic reticulum Ca2+ ions and regulates ryanodine receptor (42) |
| Mgp | 1.6 (0.002) FDR = 0.46 | 1.6 (0.0012) FDR = 0.46 | Matrix Gla protein is a calcification inhibitor protein; may have a role in left ventricular dysfunction in patients with symptomatic aortic stenosis (52) |
| Npr1 | −1.4 (0.003) FDR = 0.50 | −1.5 (0.002) FDR = 0.50 | Natiuretic peptide receptor 1 |
| Npy | 1.5 (0.006) FDR = 0.50 | 1.8 (0.0011) FDR = 0.50 | Neuropeptide Y is expressed in heart neurons and endothelial cells; its extensive actions are mediated through NPY1 and NPY6 receptors; the Y1 receptor induces vasoconstriction and regulates gene expression in hypertrophying cardiomyocytes (18) |
| S100a1 | −1.5 (0.0006) FDR = 0.34 | −1.6 (0.0005) FDR = 0.34 | S100 calcium-binding protein A1 is the most abundant member of the calcium-binding S100 protein family in myocardial tissue; serves important roles in energy balance, myofilament sliding, myofilament calcium sensibility, titin-actin interaction, apoptosis, and cardiac remodeling (17) |
Shown here are results observed in only the left ventricle. Values in bold represent significant fold change in transcript expression relative to WTVAS control tissues; P values are indicated in parentheses.
ns, not significantly different than WTVAS.
Values in unbolded font failed 1 of 3 parameters for significance but are included to show trends.