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This article provides a detailed look at Parkinson's disease (PD), a neurodegenerative ailment mostly known for movement difficulties such tremor, stiffness, and bradykinesia, which affects approximately 1% of persons over the age of 60. Although the precise cause of PD is still unknown, various factors such as pesticide exposure, genetics, and lifestyle choices like smoking and caffeine consumption are thought to play a role in its development. The presence of Lewy bodies characterizes the disease, the aggregation of alpha-synuclein, the loss of dopaminergic neurons in the substantia nigra, and disruptions in basal ganglia circuitry, resulting in both motor and non-motor symptoms. This review is structured into several key sections, beginning with an exploration of the pathophysiological mechanisms behind PD, including how genetic mutations can lead to deficits in the Ubiquitin Proteasome System and mitochondrial function, which are linked to familial cases of the disease. Following this, the article explores diagnostic methods, such as the UK Brain Bank Criteria, advanced imaging techniques, olfactory testing, and innovative technologies like machine learning, all of which support early detection and accurate diagnosis of PD. Treatment strategies are also comprehensively reviewed, focusing on traditional pharmacological options like levodopa and dopamine agonists, as well as surgical interventions such as deep brain stimulation. Additionally, the review discusses promising new therapies, including immunotherapy aimed at neuroinflammation and gene therapy for disease modification. The impact of lifestyle changes such as exercise and diet on reducing PD risk and enhancing symptom management are also considered. In conclusion, this review highlights the complex nature of Parkinson's disease and underscores the need for a holistic approach that combines pharmacotherapy, advanced treatments, and lifestyle adjustments. By addressing both symptom management and disease modification, these strategies provide hope for improving quality of life.
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