Perilla aldehyde for COVID-19
Perilla aldehyde has been reported as potentially beneficial for treatment of COVID-19. We have not reviewed these studies. See all other treatments.
Universally available herbal teas based on sage and perilla elicit potent antiviral activity against SARS-CoV-2 variants of concern by HMOX-1 upregulation in human cells, bioRxiv, doi:10.1101/2020.11.18.388710 ,
The current SARS-CoV-2/COVID-19 pandemic wreaks medical and socioeconomic havoc. Despite the availability of vaccines, cost-effective acute treatment options preventing morbidity and mortality are urgently needed. To identify affordable, ubiquitously available, and effective treatments, we tested herbs consumed worldwide as herbal teas regarding their antiviral activity against SARS-CoV-2. Aqueous infusions prepared by boiling leaves of the Lamiaceae perilla and sage elicit potent and sustained antiviral activity against SARS-CoV-2 in therapeutic as well as prophylactic regimens. The herbal infusions exerted antiviral effects comparable to interferon-β and remdesivir but outperformed convalescent sera and interferon-α2 upon short-term treatment early after infection. Based on protein fractionation analyses, we identified caffeic acid, perilla aldehyde, and perillyl alcohol as antiviral compounds. Global mass spectrometry (MS) analyses performed comparatively in two different cell culture infection models revealed changes of the proteome upon treatment with herbal infusions and provided insights into the mode of action. As inferred by the MS data, induction of heme oxygenase 1 (HMOX-1) was confirmed as effector mechanism by the antiviral activity of the HMOX-1-inducing compounds sulforaphane and fraxetin. In conclusion, herbal teas based on perilla and sage exhibit antiviral activity against SARS-CoV-2 including variants of concern such as Alpha, Beta, Delta, and Omicron.
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