Inhaled Paraquat Found to Enter Brain, Affecting Sense of Smell in Male Mice

Inhaled Paraquat Found to Enter Brain, Affecting Sense of Smell in Male Mice

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Inhaled Paraquat Found to Enter Brain, Affecting Sense of Smell in Male Mice

Prolonged, low-level inhalation of the common weed-killer paraquat, implicated in the risk of Parkinson’s disease, caused male mice to lose at least some of their sense of smell, a study reports. This work also supported previous studies showing the inhaled chemical enters the brain via the olfactory nerve. As such, it may help in establishing more accurate risk assessments when setting herbicide limits to protect the public. Sense of smell in exposed female mice, interestingly, was…

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