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== Evidence Supporting Taxonomic Applicability == | == Evidence Supporting Taxonomic Applicability == |
Revision as of 17:00, 16 June 2016
Contents
Key Event Relationship Overview
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Description of Relationship
Upstream Event | Downstream Event/Outcome |
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Endothelial network, Impairment | Vascular, Insufficiency |
AOPs Referencing Relationship
AOP Name | Type of Relationship | Weight of Evidence | Quantitative Understanding |
---|---|---|---|
VEGF Signaling and Vascular Disruption Leading to Adverse Developmental Outcomes | Indirectly Leads to | Moderate | Weak |
Taxonomic Applicability
Name | Scientific Name | Evidence | Links |
---|
How Does This Key Event Relationship Work
In utero vascular disruptions are thought to be associated with a variety of developmental defects [Husain et al. 2008]. Vascular disruption was identified as one of 6 teratogenic mechanisms linked with medications [van Gelder et al. 2010].
Weight of Evidence
Biological Plausibility
In humans, the most common apparent cause of limb deficiencies was found to be vascular disruption defects [Gold et al. 2011]. Many genetic and environmental factors alter molecular pathways regulating angiogenesis [Knudsen and Kleinstreuer, 2011].
Empirical Support for Linkage
Include consideration of temporal concordance here
Susceptibility to Thalidomide linked to the disruption of immature angiogenic network at time of exposure [Therapontos et al. 2009]. Predicted vascular disrupting chemicals in ToxCast correlate with developmental toxicity [Kleinstreuer et al. 2011].
Uncertainties or Inconsistencies
Quantitative Understanding of the Linkage
Is it known how much change in the first event is needed to impact the second? Are there known modulators of the response-response relationships? Are there models or extrapolation approaches that help describe those relationships?
This is not well established for mammalian systems; however, a clear concentration-dependent relationship
Evidence Supporting Taxonomic Applicability
References
Gold NB, Westgate MN, Holmes LB. Anatomic and etiological classification of congenital limb deficiencies. American journal of medical genetics Part A. 2011 Jun;155A(6):1225-35. PubMed PMID: 21557466.
Husain T, Langlois PH, Sever LE, Gambello MJ. Descriptive epidemiologic features shared by birth defects thought to be related to vascular disruption in Texas, 1996-2002. Birth defects research Part A, Clinical and molecular teratology. 2008 Jun;82(6):435-40. PubMed PMID: 18383510.
Kleinstreuer NC, Judson RS, Reif DM, Sipes NS, Singh AV, Chandler KJ, et al. Environmental impact on vascular development predicted by high-throughput screening. Environmental health perspectives. 2011 Nov;119(11):1596-603. PubMed PMID: 21788198. Pubmed Central PMCID: PMC3226499.
Knudsen TB, Kleinstreuer NC. Disruption of embryonic vascular development in predictive toxicology. Birth defects research Part C, Embryo today : reviews. 2011 Dec;93(4):312-23. PubMed PMID: 22271680.
Therapontos C, Erskine L, Gardner ER, Figg WD, Vargesson N. Thalidomide induces limb defects by preventing angiogenic outgrowth during early limb formation. Proceedings of the National Academy of Sciences of the United States of America. 2009 May 26;106(21):8573-8. PubMed PMID: 19433787. Pubmed Central PMCID: 2688998.
van Gelder MM, van Rooij IA, Miller RK, Zielhuis GA, de Jong-van den Berg LT, Roeleveld N. Teratogenic mechanisms of medical drugs. Human reproduction update. 2010 Jul-Aug;16(4):378-94. PubMed PMID: 20061329.