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Zhou Z, Yan Y, Gu H, Sun R, Liao Z, Xue K, Tang C. Dopamine in the prefrontal cortex plays multiple roles in the executive function of patients with Parkinson's disease. Neural Regen Res 2024; 19:1759-1767. [PMID: 38103242 PMCID: PMC10960281 DOI: 10.4103/1673-5374.389631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 08/05/2023] [Accepted: 10/10/2023] [Indexed: 12/18/2023] Open
Abstract
Parkinson's disease can affect not only motor functions but also cognitive abilities, leading to cognitive impairment. One common issue in Parkinson's disease with cognitive dysfunction is the difficulty in executive functioning. Executive functions help us plan, organize, and control our actions based on our goals. The brain area responsible for executive functions is called the prefrontal cortex. It acts as the command center for the brain, especially when it comes to regulating executive functions. The role of the prefrontal cortex in cognitive processes is influenced by a chemical messenger called dopamine. However, little is known about how dopamine affects the cognitive functions of patients with Parkinson's disease. In this article, the authors review the latest research on this topic. They start by looking at how the dopaminergic system, is altered in Parkinson's disease with executive dysfunction. Then, they explore how these changes in dopamine impact the synaptic structure, electrical activity, and connection components of the prefrontal cortex. The authors also summarize the relationship between Parkinson's disease and dopamine-related cognitive issues. This information may offer valuable insights and directions for further research and improvement in the clinical treatment of cognitive impairment in Parkinson's disease.
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Affiliation(s)
- Zihang Zhou
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Yalong Yan
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Heng Gu
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Ruiao Sun
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Zihan Liao
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Ke Xue
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Chuanxi Tang
- Department of Neurobiology, Xuzhou Key Laboratory of Neurobiology, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
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Béreau M, Giffard M, Clairet AL, Degenne G, Tatu L, Richfield E, Magnin E, Vérin M, Auffret M. Terminal Care in Parkinson's Disease: Real-Life Use of Continuous Subcutaneous Apomorphine Infusion to Improve Patient Comfort. JOURNAL OF PARKINSON'S DISEASE 2024; 14:209-219. [PMID: 38217611 PMCID: PMC10836545 DOI: 10.3233/jpd-230201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Indexed: 01/15/2024]
Abstract
BACKGROUND There are currently no recommendations on the therapeutic management of Parkinson's disease (PD) patients at the end of life. OBJECTIVE To describe a cohort of patients with PD who benefited from continuous subcutaneous apomorphine infusion (CSAI) initiation at the end of their life as comfort care. METHODS This real-life cohort includes 14 PD patients, who benefited from 24-h, low-dose CSAI (0.5-3 mg/h) in the context of terminal care. Patient's comfort (pain, rigidity, and/or ability to communicate) and occurrence of CSAI-related side-effects (nausea/vomiting, cutaneous and behavioral manifestations) were evaluated based on medical records. RESULTS All patients (age 62-94 years, disease duration 2-32 years) presented with late-stage PD and a compromised oral route. Treatment lasted from a few hours to 39 days. CSAI led to substantial functional improvement, with a good safety profile. Overall clinical comfort was deemed improved by the medical team, the patient, and/or caregivers. CONCLUSIONS CSAI might be a promising approach in PD terminal care, as it reduces motor symptoms and overall discomfort, with an apparent good safety profile. Use of the apomorphine pen, sublingual film or a classic syringe pump might be considered when apomorphine pumps are not available. Larger observational cohorts and randomized controlled trials are needed to establish the efficacy and tolerability of apomorphine in the context of terminal care and more broadly, in an advance care planning perspective.
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Affiliation(s)
- Matthieu Béreau
- Neurology Department, CHU Besançon, Besançon, France
- Université de Franche-Comté, UR LINC, Besançon, France
| | - Mathilde Giffard
- Mobile Palliative Care Team, CHU Besançon, Besançon, France
- Inserm CIC 1431, CHU Besançon, Besançon, France
| | - Anne-Laure Clairet
- Department of Pharmacy, University Hospital of Besançon, Besançon, France
| | | | - Laurent Tatu
- Neurology Clinical Electrophysiology Department, CHU Besançon, Besançon, France
- Laboratoire d’Anatomie, Université de Franche-Comté, Besançon, France
| | - Edward Richfield
- North Bristol NHS Trust, Department of Geriatrics, Southmead Road, Southmead, Bristol, UK
| | - Eloi Magnin
- Neurology Department, CHU Besançon, Besançon, France
- Université de Franche-Comté, UR LINC, Besançon, France
- Centre Neurodéveloppemental ⪡Hors Normes⪢, AFTC, Besançon, France
| | - Marc Vérin
- Institut des Neurosciences Cliniques de Rennes (INCR), Rennes, France
- Behavior & Basal Ganglia Research Unit, CIC-IT, CIC1414, Pontchaillou University Hospital, & University of Rennes, Rennes, France
- Neurology Department, Movement Disorders Unit, Pontchaillou University Hospital, Rennes, France
| | - Manon Auffret
- Institut des Neurosciences Cliniques de Rennes (INCR), Rennes, France
- Behavior & Basal Ganglia Research Unit, CIC-IT, CIC1414, Pontchaillou University Hospital, & University of Rennes, Rennes, France
- France Développement Electronique (FDE), Monswiller, France
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