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Emerging Research in Worms is Early Indicator of Bio-Kult Bacteria Strain’s Potential Impact on Parkinson’s
Building on previous research linking brain function to gut bacteria, this study in a roundworm experimental model found a specific bacterial strain — called Bacillus subtilis PXN 21 — could slow, and even reverse, the build-up of a certain protein associated with its ability to interfere with normal cognitive function.
The protein in question, alpha-synuclein, forms toxic clumps that starve the brain of dopamine which is a key signaling chemical between the nervous system and muscles that coordinates movement. These new findings could pave the way for future studies that gauge how supplements, such as live bacteria, impact Parkinson’s disease.
In the brains of people with Parkinson’s disease, alpha-synuclein protein misfolds and builds up, forming toxic clumps. These clumps are associated with the death of nerve cells responsible for producing dopamine. The loss of these cells causes the motor symptoms associated with Parkinson’s, including freezing, tremors and slowness of movement.
The researchers from the Universities of Edinburgh and Dundee used roundworms altered to produce the human version of alpha-synuclein that forms clumps. They fed these worms with different types of live bacteria, including those in over-the-counter supplements, to see if these bacteria could affect the formation of toxic clumps.
The scientists found that live bacteria strains, including Bacillus subtilis PXN 21, had a remarkable protective effect against the build-up of this protein and also cleared some of the already-formed protein clumps. This improved the movement symptoms in the roundworms. The researchers also found that the bacteria was able to prevent the formation of toxic alpha-synuclein clumps by producing chemicals that change how enzymes in cells process specific fats called sphingolipids.
The study published in the journal Cell Reports, was funded by Parkinson’s UK, the EMBO and the European Commission.
What People Are Saying
This is the latest in a number of recent studies which have found a link between brain function and the thousands of different kinds of bacteria living in the digestive system, known as the gut microbiome. Other studies into mice have found that the gut microbiome has an impact on the motor symptoms.
Lead researcher, Dr. Maria Doitsidou from the Centre for Discovery Brain Sciences at the University of Edinburgh, said, “The results provide an opportunity to investigate how changing the bacteria that make up our gut microbiome affects Parkinson’s. The next steps are to confirm these results in mice, followed by fast-tracked clinical trials since the probiotic we tested is already commercially available.”
Dr. Beckie Port, research manager at Parkinson’s UK, said, “Changes in the microorganisms in the gut are believed to play a role in the initiation of Parkinson’s in some cases and are linked to certain symptoms, that's why there is ongoing research into gut health and probiotics. The results from this study are exciting, as they show a link between bacteria in the gut and the protein at the heart of Parkinson's, alpha-synuclein. Studies that identify bacteria that are beneficial in Parkinson's have the potential to not only improve symptoms but could even protect people from developing the condition in the first place.”
Dr. Ashton Harper, medical director at ADM Protexin Ltd., commented, "This ground-breaking research takes us one step closer to unravelling the pathophysiology and treatment of Parkinson’s disease. Recent advances in the management of Parkinson’s disease now enable many to achieve a normal life expectancy, however, the quality of life can often be severely impaired. Options to prevent, treat and delay onset and progression would therefore represent a major breakthrough. Human clinical trial data utilising this technology is eagerly awaited."
Bio-Kult is a range of live bacteria supplements from ADM Protexin Ltd. Bacillus Subtilis PXN 21 can be found in Bio-Kult Advanced Multi-Strain Formulation, aimed at supporting digestive health; Bio-Kult Migréa, which targets head discomfort; and Bio-Kult Mind, intended to support normal cognitive function.