Question: What is (are) Parkinson disease ?
Answer: Parkinson disease is a progressive disorder of the nervous system. The disorder affects several regions of the brain, especially an area called the substantia nigra that controls balance and movement. Often the first symptom of Parkinson disease is trembling or shaking (tremor) of a limb, especially when the body is at rest. Typically, the tremor begins on one side of the body, usually in one hand. Tremors can also affect the arms, legs, feet, and face. Other characteristic symptoms of Parkinson disease include rigidity or stiffness of the limbs and torso, slow movement (bradykinesia) or an inability to move (akinesia), and impaired balance and coordination (postural instability). These symptoms worsen slowly over time. Parkinson disease can also affect emotions and thinking ability (cognition). Some affected individuals develop psychiatric conditions such as depression and visual hallucinations. People with Parkinson disease also have an increased risk of developing dementia, which is a decline in intellectual functions including judgment and memory. Generally, Parkinson disease that begins after age 50 is called late-onset disease. The condition is described as early-onset disease if signs and symptoms begin before age 50. Early-onset cases that begin before age 20 are sometimes referred to as juvenile-onset Parkinson disease.
Source: GHR

Question: What are the treatments for Parkinson disease ?
Answer: These resources address the diagnosis or management of Parkinson disease: - Gene Review: Gene Review: Parkinson Disease Overview - Genetic Testing Registry: Parkinson disease 1 - Genetic Testing Registry: Parkinson disease 10 - Genetic Testing Registry: Parkinson disease 11 - Genetic Testing Registry: Parkinson disease 12 - Genetic Testing Registry: Parkinson disease 13 - Genetic Testing Registry: Parkinson disease 14 - Genetic Testing Registry: Parkinson disease 15 - Genetic Testing Registry: Parkinson disease 16 - Genetic Testing Registry: Parkinson disease 17 - Genetic Testing Registry: Parkinson disease 18 - Genetic Testing Registry: Parkinson disease 2 - Genetic Testing Registry: Parkinson disease 3 - Genetic Testing Registry: Parkinson disease 4 - Genetic Testing Registry: Parkinson disease 5 - Genetic Testing Registry: Parkinson disease 6, autosomal recessive early-onset - Genetic Testing Registry: Parkinson disease 7 - Genetic Testing Registry: Parkinson disease 8, autosomal dominant - Genetic Testing Registry: Parkinson disease, late-onset - Genetic Testing Registry: Parkinson disease, mitochondrial - MedlinePlus Encyclopedia: Parkinson's Disease - Michael J. Fox Foundation for Parkinson's Research: What Drugs Are Used to Treat Parkinson's Disease and How Do They Work? - National Institute of Neurological Disorders and Stroke: Deep Brain Stimulation for Parkinson's Disease - Parkinson's Disease Foundation: Diagnosis - Parkinson's Disease Foundation: Medications & Treatments These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
Source: GHR