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Magnetite Pollution Causes Alzheimer’s Disease with Brain Damage: Study


The correlation between urban air pollution and various health issues such as breast cancer, immune dysfunction, osteoporosis, heart problems, and dementia has been well-documented. Nonetheless, understanding the precise mechanisms by which poor air quality directly contributes to disease has posed a challenge for researchers.

For years, epidemiological evidence has indicated a connection between Alzheimer’s disease and air pollution. Individuals residing in highly polluted urban areas tend to exhibit slightly elevated rates of neurodegenerative conditions.

Cindy Gunawan, the lead researcher of a recent study investigating the mechanisms underlying the association between air pollution and neurodegeneration, emphasizes that many cases of advanced Alzheimer’s disease are significantly influenced by environmental or lifestyle factors. Gunawan is particularly intrigued by a specific component of air pollution.

“Previous research has suggested that individuals residing in regions with elevated air pollution levels face a heightened risk of developing Alzheimer’s disease,” stated Gunawan. “Additionally, increased levels of magnetite, a magnetic iron oxide compound, have been observed in the brains of individuals with Alzheimer’s disease. However, our study is the first to investigate whether the presence of magnetite particles in the brain can contribute to the manifestation of Alzheimer’s symptoms.”

For decades, it has been understood that magnetite particles can naturally occur in the human brain, with the belief that these minuscule magnetic particles were a product of the brain’s iron processing mechanisms. However, in 2016, a groundbreaking study proposed a new and striking hypothesis. This study meticulously examined brain tissue samples from 37 deceased individuals, revealing a significant presence of magnetite particles in frontal cortex tissue, the majority of which appeared to originate from pollution sources. According to the findings of the 2016 study, magnetite particles formed endogenously adopt a markedly different structure compared to those originating from air pollution. Furthermore, these air pollution-derived particles outnumber naturally occurring particles in most human brains by a ratio of 100 to one.

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