Not all patients may fit this pattern, and more research is underway, including planned ME/CFS IgG transfer models.
Not all patients may fit this pattern, and more research is underway, including planned ME/CFS IgG transfer models.
IgG from patients transferred pain sensitivity and reduced activity to mice.
This provides further support that antibodies may influence chronic pain and fatigue conditions.
IgG from patients transferred pain sensitivity and reduced activity to mice.
This provides further support that antibodies may influence chronic pain and fatigue conditions.
Many experienced short-term improvements in fatigue, function, pain, and orthostatic symptoms.
Effects faded as IgG levels returned.
Many experienced short-term improvements in fatigue, function, pain, and orthostatic symptoms.
Effects faded as IgG levels returned.
This suggests that antibodies in these conditions may interfere with immune signalling.
This suggests that antibodies in these conditions may interfere with immune signalling.
Fab fragments drove most of this effect, while Fc fragments had smaller impacts on cell energy levels.
Fab fragments drove most of this effect, while Fc fragments had smaller impacts on cell energy levels.
The antibodies disrupted normal cell function, including mitochondrial behaviour and inflammatory signalling.
This may help explain fatigue and immune issues, but more work is needed.
The antibodies disrupted normal cell function, including mitochondrial behaviour and inflammatory signalling.
This may help explain fatigue and immune issues, but more work is needed.
The studies are early and based on preprints, so results need further validation.
The studies are early and based on preprints, so results need further validation.
Healthy IgG did not produce these effects.
Healthy IgG did not produce these effects.
The mice developed increased pain sensitivity, reduced activity, or balance issues depending on which patient subgroup the antibodies came from.
The mice developed increased pain sensitivity, reduced activity, or balance issues depending on which patient subgroup the antibodies came from.
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
A clinical trial is needed to see if removing these EVs reduces symptoms.
A clinical trial is needed to see if removing these EVs reduces symptoms.
These will need to be investigated in future work.
These will need to be investigated in future work.
The sample size was small.
It examined only one time point.
The miRNA panel covers a fixed list of miRNAs.
Pathway effects were predicted rather than measured directly.
The sample size was small.
It examined only one time point.
The miRNA panel covers a fixed list of miRNAs.
Pathway effects were predicted rather than measured directly.
This is only a prediction and needs clinical testing.
This is only a prediction and needs clinical testing.
This may help certain Long COVID patients because some subgroups have unusually low immune responses that need restoring.
This may help certain Long COVID patients because some subgroups have unusually low immune responses that need restoring.
These pathways can support blood vessel repair, tissue recovery, and nitric oxide production, which influences blood flow.
These pathways can support blood vessel repair, tissue recovery, and nitric oxide production, which influences blood flow.
This pathway is often kept active by interferons, which are immune signals. Overactive interferon signaling has been suggested as a driver of persistent symptoms.
This pathway is often kept active by interferons, which are immune signals. Overactive interferon signaling has been suggested as a driver of persistent symptoms.
The team used these known interactions to predict how removing the miRNAs might shift biological pathways.
The team used these known interactions to predict how removing the miRNAs might shift biological pathways.
This means these 7 miRNAs were likely carried by mannose rich EVs.
This means these 7 miRNAs were likely carried by mannose rich EVs.
These are short RNA sequences carried by EVs that can change how genes behave.
They measured which miRNAs were removed from plasma after GNA resin treatment.
These are short RNA sequences carried by EVs that can change how genes behave.
They measured which miRNAs were removed from plasma after GNA resin treatment.
Their EVs did not correlate with removal by GNA resin.
This suggests that mannose related changes are specific to Long COVID.
Their EVs did not correlate with removal by GNA resin.
This suggests that mannose related changes are specific to Long COVID.
The more mannose positive EVs someone had, the more EVs the resin removed.
The more mannose positive EVs someone had, the more EVs the resin removed.