Document Type : Original Article(s)
Authors
1
PhD Candidate of Medical Physics, Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
2
MSc of Biomedical Engineering, Department of Biomedical Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
3
Associate Professor of Biomedical Engineering, Department of Biomedical Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
4
PhD Student of Medical Imaging, Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
5
Associate Professor of Medical Physics, Department of Nuclear Medicine, School of Allied Medical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
6
Associate Professor of Physiology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
7
Assistant Professor of Biomedical Engineering, Department of Medical Engineering, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
10.48305/jims.v43.i817.0574
Abstract
Background: This study aimed to evaluate the effect of duloxetine on the pain matrix in the brains of patients with knee osteoarthritis (Osteoarthritis or OA) using functional Magnetic Resonance Imaging (fMRI).
Methods: The study was conducted using fMRI on 39 patients with knee osteoarthritis, divided into two groups: one receiving a placebo and the other group treated with duloxetine. Data analysis involved Independent Component Analysis (ICA) to identify brain networks and Graph Theory to assess functional connectivity within the pain matrix. All analyses were performed using the Statistical Parametric Mapping (SPM) toolbox and the functional connectivity toolbox (CONN) in MATLAB software.
Findings: Results: In the Independent Component Analysis (ICA) method, various brain regions such as the anterior cingulate cortex (ACC), thalamus (THL), insular cortex (IC), parietal cortex (PO), and frontal pole (FP) exhibited higher numbers of active voxels in both the placebo and duloxetine groups. Graph theory analysis revealed that in the placebo group, the left thalamus (THL-left) was functionally connected with the right parietal cortex (PO-right), and the left parietal cortex (PO-left) showed functional connections with the frontal pole (FP) and insular cortex (IC). In the duloxetine group, the left parietal cortex (PO-left) demonstrated functional connectivity with the frontal pole (FP).
Conclusion: The findings of this study demonstrate that duloxetine has a significant impact on the neural architecture and pain-related functional dynamics in patients with knee osteoarthritis. These results provide a foundation for future research in the fields of cognitive neuroscience and pharmacology.
Highlights
Yazdan Choghazardi: PubMed
Ayub Faramarzi: PubMed
Vahab Dehlaghi: PubMed
Maziar Jalalvandi: PubMed
Ehsan Khodamoradi: PubMed
Mitra Yousefpour: PubMed
Hamid Sharini: PubMed
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Main Subjects