Parkinson’s disease and Lewy Body Dementia are serious conditions that affect the brain and change how people move, think, and live their daily lives.
Millions of people around the world are affected by these illnesses, and their impact often grows over time. In the early stages, people may notice shaking, stiffness, or slow movement.
As the disease progresses, many also develop memory problems, confusion, and changes in behavior. Because of this, these conditions can deeply affect both patients and their families.
For many years, scientists have been trying to understand what causes these diseases and how to stop them. One of the key problems in both Parkinson’s disease and Lewy Body Dementia is the buildup of a protein called alpha-synuclein.
In a healthy brain, proteins are constantly made and removed as part of normal cell activity. The body has systems that clean up old or damaged proteins so they do not cause harm.
However, in people with these brain conditions, alpha-synuclein is not cleared properly. Instead, it starts to stick together and form clumps. These clumps can damage brain cells and interfere with how cells communicate with each other.
Even worse, these harmful clumps can spread from one brain cell to another, slowly affecting more areas of the brain over time.
A team of researchers at Scripps Research has recently made an important discovery that may help explain why this buildup happens. Their work focuses on a protein called p62, which plays a key role in the brain’s natural cleanup system.
This system helps remove unwanted proteins and keep cells healthy. When p62 is working properly, it helps clear away harmful materials like excess alpha-synuclein.
The researchers found that in people with Parkinson’s disease and Lewy Body Dementia, p62 is not working as it should. The reason appears to be a chemical change in the protein caused by a process known as S-nitrosylation. This process happens when certain nitrogen-based molecules, especially nitric oxide, attach to proteins and change how they function.
In this case, S-nitrosylation changes the structure of p62 and prevents it from doing its job. When p62 cannot work properly, the brain’s cleanup system becomes less effective. As a result, alpha-synuclein continues to build up and form toxic clumps, which then damage more brain cells and worsen the disease.
This discovery is important because it points to a new way of thinking about treatment. Instead of only trying to reduce the symptoms of Parkinson’s disease and Lewy Body Dementia, scientists may be able to target the underlying process that allows harmful proteins to build up.
If researchers can find ways to protect p62 from this chemical damage, they may be able to restore the brain’s ability to clear out alpha-synuclein.
The team is also exploring whether certain vitamins, such as vitamin E and vitamin D, could help protect the brain in this process.
These vitamins are already known to support general brain health and reduce harmful stress in cells. Scientists now want to see if they can also prevent or reduce the damage to p62, helping it continue its role in clearing unwanted proteins.
Although this research is still in its early stages, it offers new hope for people living with these conditions. Finding a way to slow down or stop the buildup of harmful proteins could make a big difference in how these diseases progress. It could help people maintain their movement, memory, and independence for a longer time.
The study from Scripps Research adds an important piece to the puzzle of understanding these complex brain diseases. While there is still no cure for Parkinson’s disease or Lewy Body Dementia, discoveries like this bring scientists one step closer to better treatments.
As research continues, the goal is not only to extend life but also to improve its quality. By focusing on the processes that damage brain cells, scientists hope to develop treatments that protect the brain and give patients more time to live active and meaningful lives.
If you care about Parkinson’s disease, please read studies that Vitamin B may slow down cognitive decline, and Mediterranean diet could help lower risk of Parkinson’s.
For more information about brain health, please see recent studies that blueberry supplements may prevent cognitive decline, and results showing Plant-based diets could protect cognitive health from air pollution.
Copyright © 2026 Knowridge Science Report. All rights reserved.
