Key result
STEMI, NSTEMI, and INOCA share 13 altered biomarkers, with GDF-15 elevated ~2-fold across all groups.
Why the study?
The presence and clinical relevance of coronary microvascular dysfunction in both acute and chronic myocardial ischemic syndromes highlight the need for a diagnostic biomarker algorithm, with a subset of markers plausibly shared across conditions.
Does a 67-biomarker panel identify shared pathophysiological changes in patients with STEMI, NSTEMI, and INOCA compared to healthy controls?
Case-Control (n=325)
Does a 67-biomarker panel identify shared pathophysiological changes in patients with STEMI, NSTEMI, and INOCA compared to healthy controls?
Patients with STEMI, NSTEMI, and INOCA share 13 altered circulating biomarkers—predominantly reflecting neuroendocrine activation and GDF-15 elevation—suggesting a common pathophysiological basis involving coronary microvascular dysfunction.
Shared biomarker profiles support common microvascular mechanisms across syndromes; hypothesis-generating for targeted therapies pending prospective validation.
Background Growing evidence supports the presence and clinical relevance of coronary microvascular dysfunction in both acute and chronic myocardial ischemic syndromes, highlighting the need for a diagnostic biomarker algorithm, with a subset of markers plausibly shared across conditions. Material and methods The circulating levels of 67 markers referred to inflammation, endothelial dysfunction, atherogenity, oxidative stress, hemostasis, NETosis, dysbiosis, neuroendocrine activation, and cardiovascular remodeling were determined after 7 days since angioplasty in consecutive 83 pts with STEMI, 83 pts with NSTEMI and at admission in 83 pts with primary diagnosed INOCA. Control series comprised 76 healthy persons. Results In regard to inflammation in all 3 series a similar significant increment (up to 86.9%) of IL-1β and soluble receptor of IL-6 level vs control (5.28±0.84 and 1.29±0.53 pg/ml respectively) was established. Commonly for endothelial dysfunction was the rise of endocan by up to 69.4%. Two markers of atherogenic statement had a common change: decrease of paraoxanase-1 by up to 56.3% and elevation of oxiHDL. The ratio Willebrand/ADAMTS13 was alone marker of hemostasis having a significant increase in all series up to 131.5% (especially in STEAMI and NSTEMI). NETosis, oxidative stress and dysbiosis assessment didn’t underline common markers. However, neuroendocrine activity exhibited by more biomarkers with matched changes in all 3 series: increase of ACE1, Ang II, ET-1, neprylisin and decrease of catestatin, ACE2 and Ang I-7. From 10 biomarkes of cardiovascular remodeling only GDF-15 elevated in all 3 series: by 108.6-112.3 in STEMI and NSTEMI and by 96.2% in INOCA vs control (1.35±0.68 ng/ml). Conclusion Application of a comprehensive multi-biomarker panel in patients with STEMI and NSTEMI (7 days post-angioplasty) and in newly diagnosed INOCA identified 13 biomarkers with similar changes vs control. The most pronounced change was observed for GDF-15, while the majority of shared markers reflected neuroendocrine activation (ACE1, ACE2, angiotensin-(1–7)/angiotensin II balance, catestatin, and neprilysin). These findings suggest a common pathophysiological basis underlying INOCA and support the diagnostic relevance of coronary microvascular dysfunction.
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Munteanu et al. (2026) conducted a case-control in Acute and chronic coronary syndromes (STEMI, NSTEMI, INOCA) and coronary microvascular dysfunction (n=325). Comprehensive 67-biomarker panel assessment in STEMI, NSTEMI, and INOCA vs. Healthy controls was evaluated on Circulating levels of 67 biomarkers across STEMI, NSTEMI, and INOCA compared to healthy controls. Multi-biomarker profiling in STEMI, NSTEMI, and INOCA identified 13 shared altered markers vs controls, with GDF-15 elevated by 108.6-112.3% in STEMI/NSTEMI and 96.2% in INOCA.
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