期刊
LIFE-BASEL
卷 12, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/life12101644
关键词
COVID-19; vagus nerve stimulation; inflammation; autonomic modulation; clinical symptoms
资金
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (Coordination for the Improvement of Higher Education Personnel, CAPES) [88887.613510/2021-00, 88887.612408/2021-00]
The study evaluated the effects of transcranial auricular vagus nerve stimulation (taVNS) on inflammation, cardiac autonomic modulation, and clinical symptoms in individuals affected by COVID-19. The results showed that taVNS significantly reduced CRP and IL-6 levels, and led to a significant decrease in depression levels. However, it did not have an impact on other clinical symptoms.
Transcranial auricular vagus nerve stimulation (taVNS) has shown effectiveness in reducing inflammation and depression. Thus, this study evaluated its effect on inflammation, cardiac autonomic modulation, and clinical symptoms in individuals affected by COVID-19. Methods: There were 52 randomized participants hospitalized with COVID-19 diagnosis who were to receive active (a-taVNS) or sham taVNS (s-taVNS) for 90 min twice a day for seven consecutive days. Interleukin 6 (IL-6), 10 (IL-10), cortisol, C-reactive protein (CRP), heart rate variability (HRV), and clinical symptoms were assessed before and after seven days of treatment. There were also seven- and fourteen-day follow-ups for clinical symptoms, including anxiety and depression levels, as well as a six-month follow-up for memory and attention levels. Results: There was significant reduction in CRP -23.9%, (95% CI -46.3 to -1.4) and IL-6 -37.7%, (95% CI -57.6 to -17.7) for the a-taVNS group. There were no changes in IL-10, cortisol levels, or in HRV results (p > 0.05) in both groups. There were no changes regarding clinical symptoms, except for a significant decrease in depression level (-2.85, 95% CI -5.44 to -0.27) in the a-taVNS group. Conclusion: taVNS showed effects on CRP, IL-6, and depression levels; however, it did not affect other clinical symptoms.
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