Study Links Inflammation to Fatigue in Myasthenia Gravis
A new study from the Netherlands indicates that chronic,low-grade inflammation involving C-reactive protein (CRP) plays a role in the development of fatigue experienced by individuals with myasthenia gravis (MG).
fatigue is a frequent and debilitating symptom for those living with MG, often thoght to be a protective response where the body reduces muscle activity to prevent further damage. Though, the underlying causes of this fatigue have remained elusive.Researchers are now suggesting a connection to inflammation.
A team led by Annabel M. Ruiter at Leiden Medical University investigated the potential role of inflammation by analyzing 38 different biomarkers – including cytokines and myokines – in blood samples from 116 MG patients who tested positive for anti-acetylcholine receptor antibodies. The study found that 64% of participants reported experiencing severe fatigue.
Using a refined statistical analysis called multivariate linear regression, the researchers examined the relationship between each biomarker and fatigue levels. This analysis accounted for factors known to influence fatigue, such as gender, age, disease severity, levels of depression and anxiety, medication use (non-steroidal immunosuppressants), and prior prednisone dosage.
The analysis revealed a important correlation between fatigue and levels of CRP. Importantly,this connection persisted even after considering other potential contributing factors like body mass index,physical activity levels,and hemoglobin counts. These findings,published in Neurology Neuroimmunology & Neuroinflammation,support the idea that localized inflammation in the periphery can trigger broader systemic inflammatory responses that ultimately contribute to fatigue in MG patients.
