Researchers have developed a physiologically based toxicokinetic model to predict the combined toxic effects of two common mold-derived contaminants, deoxynivalenol (DON) and fumonisin B1 (FB1), with findings published in the Journal of Hazardous Materials. Lead author Wang X. and the research team focused on how these mycotoxins interact when present together, a scenario common in contaminated grain and corn supplies worldwide.
The study used astrocyte-like C6 cells, a rat brain cell line, to examine the biological mechanisms behind the toxicity. This cellular model allowed researchers to observe how DON and FB1 affect brain-adjacent tissue at the molecular level, and whether their combined presence amplifies, diminishes, or simply adds to the individual harm each toxin causes. The physiologically based toxicokinetic approach translates laboratory findings into predictions about how these substances behave inside a living body over time.
This research matters because DON and FB1 frequently co-occur in food supplies, particularly in cereals and maize, and regulatory limits are typically set for each toxin individually. Understanding combined toxicity provides a more realistic picture of actual human risk. For people concerned about mold exposure through diet, this type of modeling work helps inform safer food safety thresholds and more accurate health guidance.