Alzheimer’s disease may now be added to a list of diseases with promising treatment from cannabis compounds, a new study from the Salk Institute says.
While there has been research and trials to use compounds to treat chronic pain, cancers, epilepsy, and other diseases and illnesses, this laboratory study is the first of its kind to test tetrahydrocannabinol (THC), a main component in marijuana, against the plaque buildup of the brain associated with Alzheimer’s disease.
The researchers took human neurons that they grew in a lab and altered them so that they created the plaque buildup (comprised of proteins such as beta-amyloid). The researchers then subjected the neurons to amounts of THC and other marijuana compounds.
What they found was that not only did the THC cause a breakdown of the protein buildup, but a reduction in inflammation in the cells. Inflammation is bad because it makes it harder for your neurons to communicate with one another correctly.
“Although other studies have offered evidence that cannabinoids might be neuroprotective against the symptoms of Alzheimer’s, we believe our study is the first to demonstrate that cannabinoids affect both inflammation and amyloid beta accumulation in nerve cells,” says Salk Professor David Schubert, the senior author of the paper said in a statement.
This study is also novel because the research also provides a stronger link between protein buildup and the inflammation of the neurons. Some past hypotheses had thought that other immune-like cells had been inflamed, and not the neurons themselves.
The researchers believe that the THC was able to reduce the protein buildup and inflammation by working in the brain’s endocannabinoid receptors, which are naturally occurring in the body. Scientists had already known that exercise engages these receptors, and physical activity can slow the progression of Alzheimer’s disease.
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