Neurotransmission in Parkinson’s disease: beyond dopamine
Identifieur interne : 000628 ( Main/Exploration ); précédent : 000627; suivant : 000629Neurotransmission in Parkinson’s disease: beyond dopamine
Auteurs : P. Barone [Italie]Source :
- European Journal of Neurology [ 1351-5101 ] ; 2010-03.
English descriptors
Abstract
Parkinson’s disease (PD) is most frequently associated with characteristic motor symptoms that are known to arise with degeneration of dopaminergic neurons. However, patients with this disease also experience a multitude of non‐motor symptoms, such as sleep disturbances, fatigue, apathy, anxiety, depression, cognitive impairment, dementia, olfactory dysfunction, pain, sweating and constipation, some of which can be at least as debilitating as the movement disorders and have a major impact on patients’ quality of life. Many of these non‐motor symptoms may be evident prior to the onset of motor dysfunction. The neuropathology of PD has shown that complex, interconnected neuronal systems, regulated by a number of different neurotransmitters in addition to dopamine, are involved in the aetiology of motor and non‐motor symptoms. This review focuses on the non‐dopaminergic neurotransmission systems associated with PD with particular reference to the effect that their modulation and interaction with dopamine has on the non‐motor symptoms of the disease. PD treatments that focus on the dopaminergic system alone are unable to alleviate both motor and non‐motor symptoms, particularly those that develop at early stages of the disease. The development of agents that interact with several of the affected neurotransmission systems could prove invaluable for the treatment of this disease.
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DOI: 10.1111/j.1468-1331.2009.02900.x
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