PMID- 22583767 OWN - NLM STAT- MEDLINE DCOM- 20121221 LR - 20131121 IS - 1872-7972 (Electronic) IS - 0304-3940 (Linking) VI - 523 IP - 1 DP - 2012 Aug 8 TI - Acidic preconditioning protects against ischemia-induced brain injury. PG - 3-8 LID - 10.1016/j.neulet.2012.05.015 [doi] AB - Ischemic preconditioning protects against cerebral ischemia. Recent investigations indicated that acidic preconditioning (APC) protects against ischemia-induced cardiomyocytes injury. However, it is not clear whether APC can protect against cerebral ischemia. To address this issue, C57BL/6 mice were exposed 3 times at 10-min intervals to a normoxic atmosphere containing 20% CO(2) for 5 min before being further subjected to bilateral common carotid artery occlusion. APC reversed the ischemia-induced brain injury as revealed by improved performance in passive avoidance experiments and decreased neuron loss in the hippocampal CA1 region. Consistently, both APC-treated brain slices and primary cultured neurons were more resistant to oxygen-glucose-deprivation (OGD)-induced injury, in a pH- and time-dependent manner, as revealed by reversed cell/tissue viability. In addition, the APC treatment prevented OGD-induced mitochondrial transmembrane potential loss and apoptosis, which was inhibited by the mitochondrial permeability transport pore opener atractyloside. Taken together, these findings indicated that APC protects against ischemia-induced neuronal injury. The beneficial effects may be attributed, at least in part, to decreased mitochondria-dependent neuronal apoptosis. CI - Copyright (c) 2012 Elsevier Ireland Ltd. All rights reserved. FAU - Zhang, Chen-hui AU - Zhang CH AD - Zhejiang Provincial Key Laboratory of Medical Genetics, School of Life Sciences, Wenzhou Medical College, Wenzhou 325035, China. FAU - Fan, Yan-ying AU - Fan YY FAU - Wang, Xiao-fen AU - Wang XF FAU - Xiong, Jia-yan AU - Xiong JY FAU - Tang, Ying-ying AU - Tang YY FAU - Gao, Jie-qiong AU - Gao JQ FAU - Shen, Zhe AU - Shen Z FAU - Song, Xiao-hui AU - Song XH FAU - Zhang, Jing-ying AU - Zhang JY FAU - Shen, Yao AU - Shen Y FAU - Li, Qing AU - Li Q FAU - Zhang, Xiangnan AU - Zhang X FAU - Chen, Zhong AU - Chen Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120511 PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 142M471B3J (Carbon Dioxide) SB - IM CIN - Neurosci Lett. 2012 Aug 8;523(1):1-2. PMID: 22743297 MH - Acidosis MH - Animals MH - Brain Chemistry/*drug effects MH - Brain Injuries/diagnosis/*physiopathology/*therapy MH - Brain Ischemia/diagnosis/*physiopathology/*therapy MH - Carbon Dioxide/*administration & dosage MH - Hydrogen-Ion Concentration/drug effects MH - Ischemic Preconditioning/*methods MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Treatment Outcome EDAT- 2012/05/16 06:00 MHDA- 2012/12/22 06:00 CRDT- 2012/05/16 06:00 PHST- 2012/03/16 00:00 [received] PHST- 2012/04/30 00:00 [revised] PHST- 2012/05/02 00:00 [accepted] PHST- 2012/05/16 06:00 [entrez] PHST- 2012/05/16 06:00 [pubmed] PHST- 2012/12/22 06:00 [medline] AID - S0304-3940(12)00651-9 [pii] AID - 10.1016/j.neulet.2012.05.015 [doi] PST - ppublish SO - Neurosci Lett. 2012 Aug 8;523(1):3-8. doi: 10.1016/j.neulet.2012.05.015. Epub 2012 May 11.