Circulating N-terminal brain natriuretic peptide precursor and endothelin levels in patients with syndrome X and left bundle branch block with preserved systolic function

Effect of Right Ventricular Apex Pacing on the Tei Index and Brain Natriuretic Peptide in Patients with a Dual‐Chamber Pacemaker

“…These data are consistent with observations from the present study that asynchronous electrical activation induced by RVA pacing resulted in increased LV and RV Tei index and increased BNP levels. The increases in the Tei index and BNP levels may be related to interventricular conduction delays, as is seen in the context of LBBB 19,20 …”

Diastolic dysfunction in exercise and its role for exercise capacity

“…Increasing values of BNP could be found with increasing degree of diastolic dysfunction by means of Doppler measurements of transmitral flow [16,17]. However, due to a low specificity and multiple conditions with presence of elevated BNP levels, such as pulmonary disease [18], pulmonary embolism [19], renal dysfunction [20], and sepsis [21], BNP does not serve as a screening tool to detect diastolic dysfunction but is rather recommended to exclude DHF in patients with exertional dyspnea [9].…”

Comparison of the Biomedica NT-proBNP Enzyme Immunoassay and the Roche NT-proBNP Chemiluminescence Immunoassay: Implications for the Prediction of Symptomatic and Asymptomatic Structural Heart Disease

“…RNA, however, has been considered too vulnerable to degradation by ribonucleases to be recovered from these filters. Despite this, Zhang and McCabe (5 ) and Matsubara et al (6 ) reported that mRNA could be isolated from such filters after up to 4 years of storage. The stability of viral RNA on filters has also been reported (7,8 ), although this was not tested over extended periods of time.…”