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Neurohistopathological findings of the brain parenchyma after long-term deep brain stimulation: Case series and systematic literature review.
Parkinsonism Relat Disord
December 2024
Department of Neurosurgery, University of Iowa, Iowa City, IA, United States. Electronic address:
Introduction: Efficacy of deep brain stimulation (DBS) is established for several movement and psychiatric disorders. However, the mechanism of action and local tissue changes are incompletely described. We describe neurohistopathological findings of 9 patients who underwent DBS for parkinsonism and performed a systematic literature review on postmortem pathologic reports post-DBS.
View Article and Find Full Text PDFBromocriptine Versus Levodopa and other treatments in Parkinson's Disease: an updated Meta-analysis Involving more than 4000 patients across 12 randomized clinical trials.
Acta Neurol Belg
December 2024
Department of Epidemiology and Biostatistics, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Objectives: The purpose of this meta-analysis was to conduct a comparative study by systematically examining and analyzing trials that studied the impacts of levodopa and bromocriptine, either separately or together, in treating Parkinson's disease (PD).
Methods: An extensive literature search was conducted across PubMed (Medline), Scopus, and Web of Science databases, using targeted keywords for studies published up to October 2024. The methodological quality of included RCTs was assessed with the Cochrane Risk of Bias 2 (RoB 2) tool, and bias evaluation was performed using RevMan (version 5).
Effect of -related chronic gastritis on gastrointestinal microorganisms and brain neurotransmitters in mice.
Front Pharmacol
December 2024
Institute of Gastroenterology, Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China.
The effects of (Hp)-related chronic gastritis on gastrointestinal microorganisms or brain neurotransmitters are not fully understood. Here, this study selected SPF C57BL/6 mice to set up a Hp-related chronic gastritis experiment group and a blank control group, and used omics to explore the specific effects of Hp-related chronic gastritis on gastrointestinal microorganisms and brain neurotransmitters in mice. The Tyramine (TyrA) content in the female experiment group's brain was considerably reduced compared to the female control group ( < 0.
View Article and Find Full Text PDFGait initiation is a fundamental human task, requiring one or more anticipatory postural adjustments (APA) prior to stepping. Deviations in amplitude and timing of APAs exist in Parkinson's disease (PD), causing dysfunctional postural control which increases the risk of falls. The motor cortex and basal ganglia have been implicated in the regulation of postural control, however, their dynamics during gait initiation, relationship to APA metrics, and response to pharmacotherapy such as levodopa are unknown.
View Article and Find Full Text PDFWhile deep brain stimulation (DBS) remains an effective therapy for Parkinson's disease (PD), sources of variance in patient outcomes are still not fully understood, underscoring a need for better prognostic criteria. Here we leveraged routinely collected T1-weighted (T1-w) magnetic resonance imaging (MRI) data to derive patient-specific measures of brain structure and evaluate their usefulness in predicting changes in PD medications in response to DBS. Preoperative T1-w MRI data from 231 patients with PD were used to extract regional measures of fractal dimension (FD), sensitive to the structural complexities of cortical and subcortical areas.
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