The disease manifests itself in a variety of symptoms, including tremors, difficulty with gait and balance, and sluggishness and stiffness in the arms and legs. Disease is "triggered" when the brain cells fail to produce enough dopamine, a chemical that controls movement in the body.
A study by Cambridge scientists showed that the cause of the disease may be the effect of the protein alpha-synuclein on the cell membrane, which protects it, transports nutrients into it and removes toxic substances. When this protein is performing its function normally, it plays an important role in the mechanisms by which neurons exchange signals. But experts have found that this protein can stray into groups and "grab" the inner surface of the membrane, which ultimately leads to the death of healthy brain cells.
The study authors suggest that this effect is the cause of Parkinson's disease. Scientists have not yet undertaken to unambiguously claim that they have made a breakthrough in the study of the disease. It is noted that research will continue.