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- W2799612996 abstract "Cholesterol and its oxygenated metabolites, such as oxysterols, are intensively investigated as potential players in the pathophysiology of brain disorder. Altered oxysterol levels have been described in patients with numerous neuropsychiatric disorders, including Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, X-linked adrenoleukodystrophy, and Smith-Lemli-Opitz Syndrome. Recent studies have shown that Autism Spectrum Disorders are associated with disruption of cholesterol metabolism. The present study aimed at investigating the profile of oxysterols in plasma and their association with clinical parameters in patients with Autism Spectrum Disorders. Thirty-six children with Autism Spectrum Disorders and thirty-eight healthy children, from Sfax (a southern area of Tunisia) matched for age and sex, were included in the study. The severity of Autism Spectrum Disorders was evaluated using the childhood autism rating scale. Standard lipid profile (total cholesterol, triglycerides, and high-density lipoprotein-cholesterol), serum glucose, high-sensitive C-reactive protein and orosomucoid levels were measured utilizing standard techniques. Oxysterol levels were measured by isotope-dilution gas chromatography/mass spectrometry. Standard lipid profile, serum glucose, high-sensitive C-reactive protein and orosomucoid levels were similar between the two studied populations. Compared to the control group, children with Autism Spectrum Disorders showed a significant higher plasma level of 24-hydroxycholesterol, while borderline significance was observed for 7α-hydroxycholesterol, and 25-hydroxycholersterol. In patients, 24-hydroxycholesterol was inversely correlated with age. Multivariate analysis showed that high plasma levels of 24-hydroxycholesterol are independent risk factors for Autism Spectrum Disorders. On the other hand, an analysis of the receiver's operating characteristics proved that the measured parameters recorded satisfactory levels of specificity and sensitivity. The present study provides evidence that Autism Spectrum Disorders are associated with altered levels in circulating oxysterols. The finding that 24-hydroxycholesterol is an independent risk factor for the disease and suggests the use of this oxysterol as a diagnostic tool in Autism Spectrum Disorders." @default.
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- W2799612996 date "2018-10-01" @default.
- W2799612996 modified "2023-10-10" @default.
- W2799612996 title "Plasma oxysterol profiling in children reveals 24-hydroxycholesterol as a potential marker for Autism Spectrum Disorders" @default.
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- W2799612996 doi "https://doi.org/10.1016/j.biochi.2018.04.026" @default.
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