Scientists have demonstrated that locusts are adept at differentiating healthy human cells from cancerous cells using their sense of smell – and that could open opportunities for detecting the disease earlier, improving the chances of recovery.
Using electrodes attached to the locusts' brains, the team was able to measure the insects' response to gas samples from different cells and establish signal profiles that represented the chemicals they were smelling.
"We expected that the cancer cells would appear different than the normal cells. But when the bugs could distinguish three different cancers from each other, that was amazing,"Across different types of cancer, the survival rate is around 10-20 percent when the cancer is detected at stage 4 . Compare that with cancers that are spotted at stage 1, for which patients have an 80-90 percent chance of survival – a huge difference.
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