Tuesday, December 08, 2020

Red Propolis May Be Used to Treat Schistosomiasis (Snail Fever, Bilharzia)


In vitro studies and experiments with mice show that the natural extract was more effective than the only drug available to combat this parasitic disease.

Well-known for its bactericidal and anti-fungal properties, Brazilian red propolis has now been found to act powerfully against the parasite that causes schistosomiasis, reducing the number of eggs and killing the helminths (worms).

In experiments performed at Universidade Guarulhos (UnG) in the state of São Paulo, Brazil, with FAPESP’s support, 400 milligrams per kilogram of body weight was a sufficient dose of red propolis to reduce the parasite load by more than 60% in mice infected with the flatworm Schistosoma mansoni. It was equally effective against the immature and adult stages of the parasite. In vitro tests also showed that red propolis blocked reproduction and oviposition (egg-laying).

“Propolis, especially the red variety, is well-known for its action against bacteria and fungi. It protects the beehive from intruders, and we expected that some of its more than 20 substances would act against parasitic infectious agents. What surprised us was that it disrupted the worm’s integument and killed adult as well as immature worms, which the conventional treatment for schistosomiasis doesn’t do,” said Josué de Moraes, a professor at UnG and last author of the article on the study published in the Journal of Ethnopharmacology.

The results of all the tests suggest red propolis may be more effective to treat schistosomiasis than the only pharmaceutical product available for this purpose. Before red propolis can be prescribed for patients, of course, it must be tested in clinical trials on humans with the disease...

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