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• W2985827412 abstract "Abstract Transcriptomics and candidate gene/protein expression studies have indicated several biological processes modulated by methylphenidate (MPH), widely used in attention-deficit/hyperactivity disorder (ADHD) treatment. However, the lack of a differential proteomic profiling of MPH treatment limits the understanding of the most relevant mechanisms by which MPH exerts its pharmacological effects at the molecular level. Therefore, our aim is to investigate the MPH-induced proteomic alterations using an experimental design integrated with a pharmacogenomic analysis in a translational perspective. Proteomic analysis was performed using the cortices of Wistar-Kyoto rats, which were treated by gavage with MPH (2 mg/kg) or saline for two weeks ( n = 6/group). After functional enrichment analysis of the differentially expressed proteins (DEP) in rats, the significant biological pathways were tested for association with MPH response in adults with ADHD ( n = 189) using genome-wide data. Following MPH treatment in rats, 98 DEPs were found ( P < 0.05 and FC < −1.0 or > 1.0). The functional enrichment analysis of the DEPs revealed 18 significant biological pathways (gene-sets) modulated by MPH, including some with recognized biological plausibility, such as those related to synaptic transmission. The pharmacogenomic analysis in the clinical sample evaluating these pathways revealed nominal associations for gene-sets related to neurotransmitter release and GABA transmission. Our results, which integrate proteomics and pharmacogenomics, revealed putative molecular effects of MPH on several biological processes, including oxidative stress, cellular respiration, and metabolism, and extended the results involving synaptic transmission pathways to a clinical sample. These findings shed light on the molecular signatures of MPH effects and possible biological sources of treatment response variability." @default.
• W2985827412 created "2019-11-22" @default.
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• W2985827412 date "2019-11-18" @default.
• W2985827412 modified "2023-09-27" @default.
• W2985827412 title "Integrative proteomics and pharmacogenomics analysis of methylphenidate treatment response" @default.
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• W2985827412 doi "https://doi.org/10.1038/s41398-019-0649-5" @default.
• W2985827412 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6861257" @default.
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• W2985827412 hasPublicationYear "2019" @default.
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