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The Interaction of Histamine H and Dopamine D Receptors on Hyperkinetic Alterations in Animal Models of Parkinson's Disease.
Pharmaceuticals (Basel)
December 2024
División de Neurociencias Básicas, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, SSa, Calzada México-Xochimilco 289, Arenal de Guadalupe, Ciudad de México 14389, Mexico.
Parkinson's disease is associated with the loss of more than 40% of dopaminergic neurons in the substantia nigra pars compacta. One of the therapeutic options for restoring striatal dopamine levels is the administration of L-3,4-dihydroxyphenylalanine (L-Dopa). However, Parkinson's disease patients on long-term L-Dopa therapy often experience motor complications, such as dyskinesias.
View Article and Find Full Text PDFSusceptibility map-weighted MRI can distinguish tremor-dominant Parkinson's disease from essential tremor.
Sci Rep
January 2025
Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
Distinguishing between Parkinson's disease (PD) and essential tremor (ET) can be challenging sometimes. Although positron emission tomography can confirm PD diagnosis, its application is limited by high cost and exposure to radioactive isotopes. Patients with PD exhibit loss of the dorsal nigral hyperintensity on brain magnetic resonance imaging (MRI).
View Article and Find Full Text PDFCoherent Changes in Neural Motor Network Activity during Levodopa-Induced Dyskinesia in a Rat Model of Parkinson's Disease.
J Integr Neurosci
December 2024
Federal State Budgetary Educational Institution, Institute of Theoretical and Experimental Biophysics, 142290 Pushchino, Russia.
Background: Long-term use of levodopa, a metabolic precursor of dopamine (DA) for alleviation of motor symptoms in Parkinson's disease (PD), can cause a serious side effect known as levodopa-induced dyskinesia (LID). With the development of LID, high-frequency gamma oscillations (~100 Hz) are registered in the motor cortex (MCx) in patients with PD and rats with experimental PD. Studying alterations in the activity within major components of motor networks during transition from levodopa-off state to dyskinesia can provide useful information about their contribution to the development of abnormal gamma oscillations and LID.
View Article and Find Full Text PDFInosine exerts dopaminergic neuroprotective effects via mitigation of NLRP3 inflammasome activation.
Neuropharmacology
March 2025
College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea. Electronic address:
Neuroinflammation plays a crucial role in the pathogenesis of Parkinson's disease (PD). Transformation of pro-interleukin (IL)-1β into a mature IL-1β via active inflammasome may be related to the progression of PD. Therefore, the modification of inflammasome activity may be a potential therapeutic strategy for PD.
View Article and Find Full Text PDFLewy pathology formation in patient-derived GBA1 Parkinson's disease midbrain organoids.
Brain
November 2024
Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan 20122, Italy.
Fibrillary aggregation of α-synuclein in Lewy body inclusions and nigrostriatal dopaminergic neuron degeneration define Parkinson's disease neuropathology. Mutations in GBA1, encoding glucocerebrosidase, are the most frequent genetic risk factor for Parkinson's disease. However, the lack of reliable experimental models able to reproduce key neuropathological signatures has hampered the clarification of the link between mutant glucocerebrosidase and Parkinson's disease pathology.
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