South Korean research finds possible ally in hemp against Japanese encephalitis

Study reveals the antiviral and sustainable potential of the plant

Published on 11/17/2025

Pesquisa sul-coreana encontra no cânhamo um possível aliado contra a encefalite japonesa

Scientists discover hemp's antiviral action against the Japanese encephalitis virus | CanvaPro

Researchers from South Korea have identified that hemp extracts can inhibit the replication of the Japanese encephalitis virus (JEV), transmitted by mosquitoes and common in countries in Asia and the Pacific.


The study, available on the PubMed platform, showed that compounds present in the stems and roots of the plant have antiviral activity in laboratory tests.


Hemp extracts show action against the Japanese encephalitis virus


Scientists analyzed ethanolic extracts and organic fractions obtained from different parts of the hemp (Cannabis sativa L.). In experiments conducted with cells infected by the virus, some of these fractions were able to inhibit the replication of the infectious agent, indicating a possible antiviral activity.


Among the identified substances, the study highlighted Stigmasterol, a phytosterol found in the analyzed samples. This compound showed antiviral effects both during and after cellular infection.


According to the authors, the results are still preliminary and require testing in animal and human models to confirm efficacy and safety.


New paths for hemp science


The study also stands out for valuing parts of the hemp plant that were previously underutilized by the industry, such as stems and roots, components that can become a source of bioactive molecules with pharmaceutical potential, strengthening scientific interest in the plant.


The researchers emphasize that there are still important steps ahead, such as standardizing the extracts, defining safe doses, and conducting clinical trials.


The article concludes that hemp extracts represent a promising starting point for the development of natural antivirals, a frontier that combines innovation, science, and sustainability.
 

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