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Morgan NV Westaway SK Morton JE Gregory A Gissen P Sonek S Cangul H Coryell J Canham N Nardocci N Zorzi G Pasha S Rodriguez D Desguerre I Mubaidin A Bertini E Trembath RC Simonati A Schanen C Johnson CA Levinson B Woods CG Wilmot B Kramer P Gitschier J Maher ER Hayflick SJ 《Nature genetics》2006,38(7):752-754
Neurodegenerative disorders with high brain iron include Parkinson disease, Alzheimer disease and several childhood genetic disorders categorized as neuroaxonal dystrophies. We mapped a locus for infantile neuroaxonal dystrophy (INAD) and neurodegeneration with brain iron accumulation (NBIA) to chromosome 22q12-q13 and identified mutations in PLA2G6, encoding a calcium-independent group VI phospholipase A2, in NBIA, INAD and the related Karak syndrome. This discovery implicates phospholipases in the pathogenesis of neurodegenerative disorders with iron dyshomeostasis. 相似文献
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Lounkine E Keiser MJ Whitebread S Mikhailov D Hamon J Jenkins JL Lavan P Weber E Doak AK Côté S Shoichet BK Urban L 《Nature》2012,486(7403):361-367
Discovering the unintended 'off-targets' that predict adverse drug reactions is daunting by empirical methods alone. Drugs can act on several protein targets, some of which can be unrelated by conventional molecular metrics, and hundreds of proteins have been implicated in side effects. Here we use a computational strategy to predict the activity of 656 marketed drugs on 73 unintended 'side-effect' targets. Approximately half of the predictions were confirmed, either from proprietary databases unknown to the method or by new experimental assays. Affinities for these new off-targets ranged from 1 nM to 30 μM. To explore relevance, we developed an association metric to prioritize those new off-targets that explained side effects better than any known target of a given drug, creating a drug-target-adverse drug reaction network. Among these new associations was the prediction that the abdominal pain side effect of the synthetic oestrogen chlorotrianisene was mediated through its newly discovered inhibition of the enzyme cyclooxygenase-1. The clinical relevance of this inhibition was borne out in whole human blood platelet aggregation assays. This approach may have wide application to de-risking toxicological liabilities in drug discovery. 相似文献
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Physico-chemical properties of silica in relation to its toxicity 总被引:13,自引:0,他引:13
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