Question explored with the scientific record
Conversation so far
- 1 what is naltrexone for/do? + a private exchange
- 2 what about use in long covid? + a private exchange
- 3 wgat does CoQ10 400mg do + a private exchange
- 4 Nattokinase what does it do? + a private exchange
- 5 and for long covid? + a private exchange
- 6 so nattokinase and ultrasound worked? + a private exchange
- 7 Has anyone tested ultrasound plus enzyme in people with long COVID yet?
Answered on this page ↓
Has anyone tested ultrasound plus enzyme in people with long COVID yet?
No. Nothing in this evidence tested ultrasound plus nattokinase in a person with long COVID, or in any patient at all.
The closest work is two lab studies on pig plasma in a tube, with microbubbles added to mimic a vein [1][2]. In that model, ultrasound alone shrank the abnormal microclots and cut the count of large ones, while nattokinase alone did essentially nothing [1]. Adding enzyme to ultrasound gave a modest extra effect only at 500 kHz, and nattokinase was not consistently significant even there [1]. A companion study frames low-intensity focused ultrasound as a possible long COVID therapy, but it is still a lab-on-chip experiment, not a trial [2].
| Setting | What was tested | Result |
|---|---|---|
| Lab, pig plasma | Nattokinase alone | No significant clot reduction [1] |
| Lab, pig plasma | Ultrasound 150 kHz alone | Clot diameter ~17.5 to ~8 µm [1] |
| Lab, pig plasma | Ultrasound + nattokinase | Modest, inconsistent benefit [1] |
| People with long COVID | Ultrasound + enzyme | Not tested in this evidence |
The long COVID records here are about other things entirely: muscle changes, rehabilitation, lung scarring, microclots as a mechanism [3][4][5]. None of them ran this combination. So the human question is open, and the burden sits on whoever wants to sell it as a treatment.
My call: no human has been tested with this combination in the evidence in front of me, and the lab signal favors ultrasound over the enzyme. Confidence: moderate that no such trial appears here, low on whether it would help anyone.
Sources used 5
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Investigation of the Synergistic Effect of Enzymatic and Ultrasound-Induced Amyloid Microclot Degradation
This study investigates whether low-frequency ultrasound with microbubbles can mechanically disrupt amyloid microclots in vitro and whether fibrinolytic enzymes (rtPA, lumbrokinase, nattokinase) provide any synergistic enhancement, finding that ultrasound-driven mechanical force…
DOI: 10.1101/2025.09.12.675963 -
Low-Intensity Ultrasound Lysis of Amyloid Microclots in a Lab-on-Chip Model
This study investigates the effectiveness of low-intensity focused ultrasound (LIFU) in lysing amyloid fibrin(ogen) microclots, particularly at 150 kHz, and explores the role of cavitation and microbubbles in enhancing this process, suggesting a potential therapeutic approach fo…
DOI: 10.1101/2025.03.10.642458 -
Persistent neuromuscular disorders associated with changes in tibialis anterior and gastrocnemius lateralis muscle architecture in long-covid: an observational longitudinal study
An observational 12‑month longitudinal study in long-COVID patients assessing neuromuscular abnormalities and tibialis anterior and gastrocnemius muscle architecture, finding higher tibialis anterior chronaxie and neuromuscular denervation in severe COVID, persistent echogenicit…
DOI: 10.1038/s41598-025-17126-7 -
Effectiveness of comprehensive rehabilitation for functional recovery and symptom reduction in long COVID: results from a six‑month randomised controlled trial
In long-COVID patients completing a six-week comprehensive rehabilitation programme, respiratory and functional outcomes improved and largely persisted at six months, although cough increased from post-treatment to follow-up.
DOI: 10.1038/s41598-026-51787-2 -
ENDOTHELIAL DYSFUNCTION AND PULMONARY LESIONS IN LONG-COVID
This review argues that endothelial dysfunction is a key unifying mechanism of Long-COVID, particularly lung damage, through direct viral infection, inflammation, microthrombosis, and biomarkers reflecting alveolar-capillary injury.
DOI: 10.11603/1681-2727.2025.2.15300