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June 24 2022

Coronavirus / Russia-Ukraine

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University of Pittsburg develops nasal sprays to prevent coronavirus

A nasal spray with substances under study to treat HIV could stop coronavirus replication at the points of entry into the body: nose and mouth.

Gianluca Ricciodi Gianluca Riccio
in Medicine
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May 8, 2020
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The researchers ofUniversity of Pittsburgh in collaboration with the Magee Women's Research Institute they are developing a nasal spray that they believe could prevent a coronavirus infection.

The active substance used in the nasal spray is a protein called Q-Griffithsin, extracted from algae and tobacco plants. Researchers believe that this protein molecule will bind to the coronavirus and prevent it from infecting healthy cells.

The protein molecule was originally developed to prevent several other infections. Animal studies have revealed that Q-Griffithsin has worked effectively against MERS, SARS, hepatitis, Ebola and many other viruses.

Interestingly, when tested in the laboratory using lung tissue, the researchers noted that the protein prevented the coronavirus from replicating.

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Kenneth Palmer, director of the Predictive Medicine Center for Biodefence and Emerging Infectious Diseases at the University of Louisville says the remedy “has good potential to be used as a topical antiviral. Most of our activity in the last 10 years has been devoted to the development of this product for anti-HIV activity, but we have also tested it with other viruses ”.

coronavirus nasal spray
Researcher Lin Wang with the nasal spray. Ph: University of Pittsburgh.

How does the nasal spray that would prevent coronavirus work?

The nasal spray works by blocking the coronavirus it causes COVID-19 where it enters the body: nose and mouth. Neutralize the virus before it enters the lungs and starts causing clinical complications. The researchers also pointed out that the nasal spray has some properties that would make it even superior to vaccines.

“One advantage it has over vaccines is its broad spectrum of activity against a number of different coronaviruses. The other benefit is for immunosuppressed people who are not successful with vaccines. This is an alternative for them too ”. Next Pittsburgh quoted Dr. Lisa Rohan, the main researcher of the nasal spray project.

Animal testing begins

The researchers will start with animal testing next month and conduct human trials later. They are also investigating what SARS-CoV-2 does to the lungs at the cellular level.

The main goal is to ensure that the nasal spray is safe and well tolerated. But the most important issue is whether it can prevent the virus from replicating within host cells.

tags: Coronavirusnasal spray
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