Mild hypothermia protects neurons against oxygen glucose deprivation via poly (ADP-ribose) signaling.
J Matern Fetal Neonatal Med
; 32(10): 1633-1639, 2019 May.
Article
em En
| MEDLINE
| ID: mdl-29278964
ABSTRACT
OBJECTIVE:
Hypothermia is a neuroprotective mechanism that has been validated for use in alleviating neonatal hypoxic-ischemic (HI) brain injury. Nevertheless, it is unclear whether poly (ADP-ribose) (PAR) signaling is involved in hypothermia-induced neuroprotection. In this study, we investigated whether mild hypothermia rescues oxygen glucose deprivation (OGD)-induced cell death by modifying PAR-relative protein expression, such as AIF, PARP-1, and PAR polymer, in primary-cultured hippocampal neurons.METHODS:
We analyzed neuronal morphology and related protein expression of PAR signaling after OGD followed by mild hypothermia in primary-cultured newborn hippocampal neurons.RESULTS:
Hypothermic treatment resulted in improved neuronal viability and alleviated DNA damage. Results from the protein assay showed that hypothermia attenuated nuclear translocation of apoptosis-inducing factor (AIF), inhibited overactivation of poly(ADP-ribose) polymerase-1 (PARP-1), and decreased production of PAR polymer induced by PARP-1 activation after OGD.CONCLUSIONS:
These results showed that mild hypothermia partially protects immature hippocampal neurons against OGD injury in part by interfering with the PAR signaling pathway.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
2_ODS3
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6_ODS3_enfermedades_notrasmisibles
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7_ODS3_muertes_prevenibles_nacidos_ninos
Base de dados:
MEDLINE
Assunto principal:
Hipóxia-Isquemia Encefálica
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Poli(ADP-Ribose) Polimerase-1
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Hipocampo
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Neurônios
Limite:
Animals
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Humans
Idioma:
En
Revista:
J Matern Fetal Neonatal Med
Ano de publicação:
2019
Tipo de documento:
Article