Endothelial dysfunction and metabolic biomarkers in post-COVID-19 syndrome
🚨A nightmare study for many!
FOR EVERYBODY: 9 months after your COVID-19, your blood vessels are STILL damaged, with probably biomarkers to prove it!
1. Study design:
German prospective cohort (n=262 adults) compared blood biomarkers ~37 weeks post-SARS-CoV-2 infection (PCS patients recovered) versus uninfected controls.
2. Endothelial dysfunction:
- Soluble thrombomodulin (sTM) and lactate dehydrogenase (LDH), two established markers of endothelial (blood-vessel) damage, were significantly elevated in the combined infected group (UOC PCS LIFE Cov ) versus never-infected controls.
- So, previously infected individuals had significantly higher soluble thrombomodulin (TM) and lactate dehydrogenase (LDH), independent of PCS diagnosis or fatigue severity.
- Critically, there were no significant differences between the PCS group and the LIFE Cov group for these markers.
3. Metabolic disruption:
- Clear alterations in arginine biosynthesis and taurine/hypotaurine pathways, indicating impaired nitric-oxide (NO) metabolism with reduced L-arginine and taurine levels.
→In plain terms: the vascular damage signal was just as strong in the symptom-free recovered people as in those still suffering from fatigue and other PCS complaints. The same held for the metabolic disruptions (impaired arginine biosynthesis and taurine/hypotaurine pathways linked to nitric-oxide production).
4. Fatigue-specific signal:
- High-fatigue PCS patients (top MFI-20 quartile) showed elevated linoleic acid (LA) plus monounsaturated fatty acids oleic (OA) and palmitoleic (PA).
→The fatty-acid signature specific to high-fatigue PCS adds a potential severity marker.
5. Notes:
- Changes persisted already up to 9 months after infection.
- PCS remains symptom-based, but these markers offer objective, measurable signals of underlying vascular and metabolic damage!
-The discussion and results treat the observed endothelial and metabolic changes as consequences of a single infection and do not speculate on additive damage from subsequent exposures.
- Limitations well noted.
‼️So, COVID-19 leaves detectable, objective blood-vessel and metabolic damage in the bloodstream nearly a year later, even if you feel completely fine and never had Long COVID symptoms.
Specific fatty-acid spikes flag severe post-COVID fatigue. The “it’s all in your head” narrative for many post-covid people is directly contradicted by these biomarkers!
These findings, solidly backed by prior 2021–2025 evidence, prove that COVID-19 inflicts measurable, persistent endothelial and nitric-oxide metabolic damage up to nearly a year later, even in fully symptom-free survivors, thereby supporting the implementation of routine biomarker screening, but even more importantly:
#AvoidSars2 #AvoidReinfections. YOU ARE NOW A CV RISK PATIENT!
nature.com/articles/s41598-0…