Ischemic Postconditioning (RIPC) After GMH in Rodents



Fig. 1
Water-maze analysis at one month after GMH. Animals were tested using progressive levels, from cued to spatial trials. (*) <0.05 compared with sham; (#) <0.05 compared with vehicle. Data expressed as standard error of mean; n = 10–12/group



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Fig. 2
Ventricular area (extent of hydrocephalus) at 1 month after GMH. (*) < 0.05 compared with vehicle. Data expressed as standard error of mean; n = 6–8/group


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Fig. 3
Pictographs showing relative cortical thickness and ventricular and overall brain size between groups




Conclusion


Translational stroke studies, in particular animal modeling, are greatly needed to safely integrate basic preclinical scientific principles ahead of clinical application [2630]. This study, in summary, showed that treatment with RIPC is a safe and noninvasive approach and this animal model demonstrated improved sensorimotor and neuropathological outcomes following GMH in rats. Further studies are needed to evaluate the actual mechanisms of RIPC neuroprotection.


Acknowledgment

This study was partially supported by the National Institutes of Health grant RO1 NS078755 (Dr Zhang).


Disclosures

None


References



1.

Ballabh P (2010) Intraventricular hemorrhage in premature infants: mechanism of disease. Pediatr Res 67:1–8PubMedCentralCrossRefPubMed


2.

Aquilina K, Chakkarapani E, Love S, Thoresen M (2011) Neonatal rat model of intraventricular haemorrhage and post-haemorrhagic ventricular dilatation with long-term survival into adulthood. Neuropathol Appl Neurobiol 37:156–165CrossRefPubMed


3.

Chen Q, Zhang J, Guo J, Tang J, Tao Y, Li L, Feng H, Chen Z (2014) Chronic hydrocephalus and perihematomal tissue injury developed in a rat model of intracerebral hemorrhage with ventricular extension. Transl Stroke Res. doi:10.​1007/​s12975-014-0367-5


4.

Zhao J, Chen Z, Xi G, Keep RF, Hua Y (2014) Deferoxamine attenuates acute hydrocephalus after traumatic brain injury in rats. Transl Stroke Res 5:586–594PubMedCentralCrossRefPubMed


5.

Heron M, Sutton PD, Xu J, Ventura SJ, Strobino DM, Guyer B (2010) Annual summary of vital statistics: 2007. Pediatrics 125:4–15CrossRefPubMed


6.

Uria-Avellanal C, Robertson NJ (2014) Na(+)/H(+) exchangers and intracellular pH in perinatal brain injury. Transl Stroke Res 5:79–98. doi:10.​1007/​s12975-013-0322-x PubMedCentralCrossRefPubMed


7.

Whitelaw A (2001) Intraventricular haemorrhage and posthaemorrhagic hydrocephalus: pathogenesis, prevention and future interventions. Semin Neonatol 6:135–146CrossRefPubMed


8.

Keep RF, Wang MM, Xiang J, Hua Y, Xi G (2014) Full steam ahead with remote ischemic conditioning for stroke. Transl Stroke Res 5:535–537PubMedCentralCrossRefPubMed

Oct 22, 2016 | Posted by in NEUROSURGERY | Comments Off on Ischemic Postconditioning (RIPC) After GMH in Rodents

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