Glyphosate

Glyphosate Crosses Blood-Brain Barrier and Exposure Correlates with Alzheimer’s Symptoms

by Sustainable Pulse | Aug 5, 2022

In a new study, Arizona State University (ASU) and the Translational Genomics Research Institute (TGEN) have explored the effects of glyphosate exposure on the brains of mice. The research demonstrates, for the first time, that glyphosate successfully crosses the blood-brain barrier and infiltrates the brain. Once there, it acts to enhance levels of a critical factor known as TNF-α.

TNF-α is a molecule with two faces. This pro-inflammatory cytokine performs vital functions in the neuroimmune system, acting to enhance the immune response and protect the brain. When levels of TNF-α are dysregulated, however, a host of diseases linked with neuroinflammation can result. Among these is Alzheimer’s disease.

Neurodegenerative illnesses, such as Alzheimer’s disease, are among the most perplexing in medical science. The underlying causes of such diseases range from genetic factors and overall cardiovascular health to dietary influences and lifestyle choices. Various environmental contaminants have also been implicated as possible players in the development or advancement of neurodegenerative disease. Among these is a broad-spectrum herbicide known as glyphosate. Glyphosate is the most used pesticide in the world.

This latest study further demonstrates in cell culture studies that glyphosate exposure appears to increase the production of soluble beta amyloid (Aβ) and reduce the viability of neurons. The accumulation of soluble beta amyloid, the sticky protein responsible for the formation of soluble beta amyloid plaques, is one of the central diagnostic hallmarks of Alzheimer’s disease.

Further evidence suggestive of potential hazards to neurological health were observed when the researchers examined changes in gene expression via RNA sequencing in the brains of mice following glyphosate exposure.

TNF-α is a molecule with two faces. This pro-inflammatory cytokine performs vital functions in the neuroimmune system, acting to enhance the immune response and protect the brain. When levels of TNF-α are dysregulated, however, a host of diseases linked with neuroinflammation can result. Among these is Alzheimer’s disease.

Neurodegenerative illnesses, such as Alzheimer’s disease, are among the most perplexing in medical science. The underlying causes of such diseases range from genetic factors and overall cardiovascular health to dietary influences and lifestyle choices. Various environmental contaminants have also been implicated as possible players in the development or advancement of neurodegenerative disease. Among these is a broad-spectrum herbicide known as glyphosate. Glyphosate is the most used pesticide in the world.

This latest study further demonstrates in cell culture studies that glyphosate exposure appears to increase the production of soluble beta amyloid (Aβ) and reduce the viability of neurons. The accumulation of soluble beta amyloid, the sticky protein responsible for the formation of soluble beta amyloid plaques, is one of the central diagnostic hallmarks of Alzheimer’s disease.

Further evidence suggestive of potential hazards to neurological health were observed when the researchers examined changes in gene expression via RNA sequencing in the brains of mice following glyphosate exposure.

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