In Vitro Analysis of the Anti-viral Potential of nasal spray constituents against SARS-CoV-2

Autor: Mark L Cannon, Jonna B. Westover, Gustavo Ferrer, Reiner Bleher, Marcos A. Sanchez-Gonzalez
Rok vydání: 2020
Předmět:
DOI: 10.1101/2020.12.02.408575
Popis: Viral pandemics have taken a significant toll on humanity and the world now is contending with the SARS-CoV-2 epidemic. Readily available economical preventive measures should be immediately explored. Xylitol has been reported to reduce the severity of viral infections as well as the severity of pneumonia, and increase the survivability of animal subjects. Since pneumonia and acute respiratory distress syndrome are potentially fatal complications of COVID-19, the present study tested the in vitro effectiveness of xylitol against SARS-CoV-2. Virus titers and LRV of SARS-CoV-2, were incubated with a single concentration of nasal spray. Toxicity was observed in the top dilution (1/10). Virus was seen below that dilution so it did not affect calculations of virus titer or LRV. After a 25-minute contact time, the nasal spray (11% Pure Xylitol, 0.85%NaCL (Saline), and 0.20% grapefruit seed extract) reduced virus from 4.2 to 1.7 log10 CCID50 per 0.1 mL, a statistically significant reduction (P
Databáze: OpenAIRE