PMID- 28821706 OWN - NLM STAT- MEDLINE DCOM- 20180517 LR - 20190606 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 23 DP - 2017 Aug 19 TI - Apigenin Ameliorates Post-Stroke Cognitive Deficits in Rats Through Histone Acetylation-Mediated Neurochemical Alterations. PG - 4004-4013 AB - BACKGROUND To identify the effect of apigenin on cognitive deficits of rats after cerebral ischemia and reperfusion injury, and to investigate the potential molecular mechanisms. MATERIAL AND METHODS The rats were given sodium butyrate (NaB) or apigenin (20 or 40 mg/kg) for 28 days. Cognition was investigated by the Morris water maze (MWM) test. On day 28, the rats were euthanized and their hippocampal brain regions were used to identify biochemical and neurochemical alterations. The content of histone deacetylase (HDAC) was measured by enzyme-linked immunosorbent assay (ELISA). Western blot analysis was performed to determine the levels of BDNF, phosphorylated cAMP response element-binding protein (pCREB), acetylated H3, and acetylated H4. The mRNA expressions of brain-derived neurotrophic factor (BDNF) and synapsin-I (Syn-I) were examined by polymerase chain reaction (PCR). RESULTS The rats with chronic administration of apigenin (20 and 40 mg/kg) showed better performance in the MWM task than the model rats; there was no significant difference between the apigenin-treated and NaB-treated rats. At the higher apigenin dose of 40 mg/kg, the HDAC content was decreased, the BDNF level was markedly increased, and acetylated H3 and acetylated H4 expressions and Syn-I expressions in the hippocampus was upregulated compared with the model group. Apigenin at 20 mg/kg did not show reversal of the neurochemical alterations. CONCLUSIONS The improvement effect of apigenin on cognitive impairments after cerebral ischemia and reperfusion injury may involve multiple mechanisms, such as the inhibition of HDAC, induction of BDNF and Syn-I expression, and regulation of histone acetylation. FAU - Tu, Fengxia AU - Tu F AD - Department of Physical Medicine and Rehabilitation, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland). FAU - Pang, Qiongyi AU - Pang Q AD - Department of Physical Medicine and Rehabilitation, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland). FAU - Huang, Tingting AU - Huang T AD - Department of Physical Medicine and Rehabilitation, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland). FAU - Zhao, Yun AU - Zhao Y AD - Department of Physical Medicine and Rehabilitation, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland). FAU - Liu, Meixia AU - Liu M AD - Department of Physical Medicine and Rehabilitation, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland). FAU - Chen, Xiang AU - Chen X AD - Department of Physical Medicine and Rehabilitation, The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland). LA - eng PT - Journal Article DEP - 20170819 PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Histones) RN - 107-92-6 (Butyric Acid) RN - 7V515PI7F6 (Apigenin) RN - EC 3.5.1.98 (Histone Deacetylases) SB - IM MH - Acetylation MH - Animals MH - Apigenin/*pharmacology MH - Brain Ischemia/drug therapy/metabolism/pathology MH - Brain-Derived Neurotrophic Factor/metabolism MH - Butyric Acid/pharmacology MH - Cognition Disorders/drug therapy MH - Cognitive Dysfunction/*drug therapy/etiology/metabolism MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Hippocampus/drug effects/metabolism MH - Histone Deacetylases/metabolism MH - Histones/metabolism MH - Male MH - Maze Learning/drug effects MH - Rats MH - Rats, Sprague-Dawley MH - Reperfusion Injury/*drug therapy/metabolism/psychology MH - Stroke/*drug therapy/metabolism/*psychology PMC - PMC5572783 COIS- Conflict of interest The author confirms that this article content has no conflict of interest. EDAT- 2017/08/20 06:00 MHDA- 2018/05/18 06:00 PMCR- 2017/08/19 CRDT- 2017/08/20 06:00 PHST- 2017/08/20 06:00 [entrez] PHST- 2017/08/20 06:00 [pubmed] PHST- 2018/05/18 06:00 [medline] PHST- 2017/08/19 00:00 [pmc-release] AID - 902770 [pii] AID - 10.12659/msm.902770 [doi] PST - epublish SO - Med Sci Monit. 2017 Aug 19;23:4004-4013. doi: 10.12659/msm.902770.