2010
DOI: 10.1186/1824-7288-36-63
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Actualities on molecular pathogenesis and repairing processes of cerebral damage in perinatal hypoxic-ischemic encephalopathy

Abstract: Hypoxic-ischemic encephalopathy (HIE) is the most important cause of cerebral damage and long-term neurological sequelae in the perinatal period both in term and preterm infant.Hypoxic-ischemic (H-I) injuries develop in two phases: the ischemic phase, dominated by necrotic processes, and the reperfusion phase, dominated by apoptotic processes extending beyond ischemic areas. Due to selective ischemic vulnerability, cerebral damage affects gray matter in term newborns and white matter in preterm newborns with t… Show more

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Cited by 63 publications
(63 citation statements)
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“…The physiopathologic mechanism underlying PVL remains an important unresolved question. 6 Classic MR imaging signs of PVL are hyperintense punctate lesions (HPLs) on T1-weighted sequences, which infrequently may also appear hypointense on T2-weighted images. 7 More severe presentations of PVL are either cavitation (cystic PVL) or glial scars and may be accompanied by a conspicuous reduction in white matter volume and ventricular enlargement.…”
mentioning
confidence: 99%
“…The physiopathologic mechanism underlying PVL remains an important unresolved question. 6 Classic MR imaging signs of PVL are hyperintense punctate lesions (HPLs) on T1-weighted sequences, which infrequently may also appear hypointense on T2-weighted images. 7 More severe presentations of PVL are either cavitation (cystic PVL) or glial scars and may be accompanied by a conspicuous reduction in white matter volume and ventricular enlargement.…”
mentioning
confidence: 99%
“…The cerebral vascular developmental diff erences between preterm and term infants produce a variation of the vulnerable region caused by HI (Distefano and Pratico, 2010). Glucose is an obligate energy fuel for the brain, but the immature brain has a low capacity for glucose transport.…”
Section: Discussionmentioning
confidence: 99%
“…Os principais fatores para o desenvolvimento da LPV incluem vascularização imatura no limite periventricular, ausência de auto-regulação vascular em lactentes prematuros (principalmente da substância branca) e vulnerabilidade da cé-lula precursora oligodendroglial dependente de maturação, que é lesionada na LPV por radicais livres produzidos durante o processo de isquemia e reperfusão. [1][2][3] Recentemente foi demonstrado que polimorfismos em genes de citocinas que aumentam a intensidade da resposta inflamatória, como o -1031T/C no gene TNF-α e o -511C/T no gene IL-1β, ou que diminuam a produção de citocinas antiinflamatórias, como o -1082G/A no gene IL-10, também estão associados ao aumento do risco de nascimento prematuro e todas as afecções decorrentes da síndrome hipóxico-isquêmica como a LPV. 4,5,6 Diante do exposto, o objetivo do estudo foi investigar a associação entre os polimorfismos -1031T/C no gene TNF-α, -511C/T no gene IL-1β e -1082G/A no gene IL-10 e a etiopatogênese da LPV em recém-nascidos com e sem esta afecção.…”
Section: Faculdade De Medicina De São José Do Rio Preto(famerp)-são Junclassified