Indian Traditional Medicine Jasada Bhasma and Other Zinc-Containing Nanoparticles Alleviate Reactive Oxygen Species–Mediated Cell Damage in Saccharomyces cerevisiae

ABSTRACT Indian traditional medicine Jasada Bhasma is a unique particulate preparation of zinc, which has been used by traditional practitioners for the treatment of various diseases such as diabetes, eye diseases, etc. This paper is an attempt to understand the mode of action of this and related types of particulate matter in biology. The biological activity of Jasada Bhasma has been tested on Saccharomyces cerevisiae wild strain, chosen as a model eukaryotic system. Results show that Jasada Bhasma– treated yeast cells were able to maintain a higher level of growth over control. DNA and enzyme studies, together with advanced microscopic studies of cellular and nuclear morphology, suggest a protective action against cellular damage mediated by reactive oxygen species (ROS). Further, a nanoparticulate-size fraction of the Bhasma showed effects comparable to the unfractionated mass, at much lower dosage levels. In comparative studies, qualitatively similar effects were also exhibited by other compounds of z...