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- W3175443387 abstract "Abstract Objectives Very‐long‐chain acyl‐CoA dehydrogenase deficiency (VLCADD) is a disorder of fatty acid oxidation. Symptoms are managed by dietary supplementation with medium‐chain fatty acids that bypass the metabolic block. However, patients remain vulnerable to hospitalisations because of rhabdomyolysis, suggesting pathologic processes other than energy deficit. Since rhabdomyolysis is a self‐destructive process that can signal inflammatory/immune cascades, we tested the hypothesis that inflammation is a physiologic dimension of VLCADD. Methods All subjects ( n = 18) underwent informed consent/assent. Plasma cytokine and cytometry analyses were performed. A prospective case analysis was carried out on a patient with recurrent hospitalisation. Health data were extracted from patient medical records. Results Patients showed systemic upregulation of nine inflammatory mediators during symptomatic and asymptomatic periods. There was also overall abundance of immune cells with high intracellular expression of IFNγ, IL‐6, MIP‐1β (CCL4) and TNFα, and the transcription factors p65‐NFκB and STAT1 linked to inflammatory pathways. A case analysis of a patient exhibited already elevated plasma cytokine levels during diagnosis in early infancy, evolving into sustained high systemic levels during recurrent rhabdomyolysis‐related hospitalisations. There were corresponding activated leukocytes, with higher intracellular stores of inflammatory molecules in monocytes compared to T cells. Exposure of monocytes to long‐chain free fatty acids recapitulated the cytokine signature of patients. Conclusion Pervasive plasma cytokine upregulation and pre‐activated immune cells indicate chronic inflammatory state in VLCADD. Thus, there is rationale for practical implementation of clinical assessment of inflammation and/or translational testing, or adoption, of anti‐inflammatory intervention(s) for personalised disease management." @default.
- W3175443387 created "2021-07-05" @default.
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- W3175443387 date "2021-01-01" @default.
- W3175443387 modified "2023-10-01" @default.
- W3175443387 title "Pervasive inflammatory activation in patients with deficiency in very‐long‐chain acyl‐coA dehydrogenase (VLCADD)" @default.
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