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July 26, 2026BiomedicinesOpen Access

Combined lysis and sonication boosts measurable cTnT levels ~34% while slashing processing time.

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Why the study?

A fraction of circulating cTnT enclosed within extracellular vesicles goes widely undetected by standard hs-cTn assays.

Population

Plasma samples from patients with NSTEMI, unstable angina, pulmonary embolism, decompensated aortic stenosis, AF, myocarditis, and healthy controls

Comparison

Combined lysis and sonication vs untreated native samples and conventional EV isolation

Design

Comparative laboratory protocol study

Key result

A combined lysis and sonication protocol significantly increased detectable cTnT levels compared to unprocessed samples (median increase ~10% to ~34%) and reduced processing time to ~10 minutes.

Authors

YDY. DingDBDominika Bernáth-NagyCHChiara Heß

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Overview

Enables detection of previously missed EV-bound cTnT; extends hs-cTnT assay utility for myocardial injury assessment.

Key Points

  • This research aims to develop a quick and efficient method to detect extracellular vesicle-bound cardiac troponin T using lysis and sonication.
  • Plasma samples were treated with a lysis buffer and sonicated for analysis.
  • Comparisons were made between the lysis-sonication method and a conventional EV isolation method.
  • Sample groups included patients with various cardiac conditions and healthy controls.
  • Post-processing, cTnT levels increased significantly, with a median rise of ~10% to ~34% across cohorts.
  • In NSTEMI, ~15% of plasma cTnT was found to be EV-bound, remaining stable over 72 hours.
  • Processing time for cTnT measurement was reduced from ~2.5 hours to ~10 minutes.

Study Design

Type

Observational

Structured PICO

P
Population
Plasma samples from patients with non-ST-segment elevation myocardial infarction (NSTEMI), unstable angina, pulmonary embolism, decompensated aortic stenosis, atrial fibrillation, myocarditis, and healthy controls
E
Exposure
Combined lysis- and sonication-based protocol
C
Comparator
Native, unprocessed samples and a conventional EV isolation method
O
Outcome
Extracellular vesicle-bound cardiac troponin T (cTnT) levels and processing timesurrogate

A novel lysis- and sonication-based protocol allows for rapid quantification of EV-bound cTnT, reducing processing time from 2.5 hours to 10 minutes.

Cite This Study

Ding et al. (2026) conducted an observational in Myocardial injury (NSTEMI, unstable angina, pulmonary embolism, decompensated aortic stenosis, atrial fibrillation, myocarditis) and healthy controls. Combined lysis- and sonication-based protocol vs. Native, unprocessed samples and conventional EV isolation method was evaluated on cTnT levels. A combined lysis and sonication protocol significantly increased detectable cTnT levels compared to unprocessed samples (median increase ~10% to ~34%) and reduced processing time to ~10 minutes.

synapsesocial.com/papers/6a65a6b5d3aea3239cd77d65https://doi.org/10.3390/biomedicines14081653
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