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histone deacetylase stroke

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https://www.readbyqxmd.com/read/28209726/therapeutic-targeting-of-the-pathological-triad-of-extrasynaptic-nmda-receptor-signaling-in-neurodegenerations
#1
REVIEW
Hilmar Bading
Activation of extrasynaptic N-methyl-d-aspartate (NMDA) receptors causes neurodegeneration and cell death. The disease mechanism involves a pathological triad consisting of mitochondrial dysfunction, loss of integrity of neuronal structures and connectivity, and disruption of excitation-transcription coupling caused by CREB (cyclic adenosine monophosphate-responsive element-binding protein) shut-off and nuclear accumulation of class IIa histone deacetylases. Interdependency within the triad fuels an accelerating disease progression that culminates in failure of mitochondrial energy production and cell loss...
February 16, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28145521/the-association-between-hdac9-gene-polymorphisms-and-stroke-risk-in-the-chinese-population-a-meta-analysis
#2
Xin Zhou, Tangming Guan, Shuyuan Li, Zinan Jiao, Xiaoshuang Lu, Xiaodi Huang, Yuhua Ji, Qiuhong Ji
Several recent genome-wide association studies (GWASs) have suggested that the histone deacetylase 9 (HDAC9) gene is associated with stroke, but the reliability of these findings remains controversial, particularly for the data derived from different ethnicities and geographical locations. Therefore, we performed a meta-analysis to explore the associations between HDAC9 polymorphisms and the risk of stroke in the Chinese population. All eligible case-control studies that met the search criteria were retrieved from multiple databases, and six case-control studies with a total of 2,356 stroke patients and 3,420 healthy controls were included...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28127553/role-of-phosphorylated-hdac4-in-stroke-induced-angiogenesis
#3
Juan Liu, Xiang Zhou, Qing Li, Shu-Min Zhou, Bin Hu, Guo-Wen Hu, Xin Niu, Shang-Chun Guo, Yang Wang, Zhi-Feng Deng
Acetylation or deacetylation of chromatin proteins and transcription factors is part of a complex signaling system that is involved in the control of neurological disorders. Recent studies have demonstrated that histone deacetylases (HDACs) exert protective effects in attenuating neuronal injury after ischemic insults. Class IIa HDAC4 is highly expressed in the brain, and neuronal activity depends on the nucleocytoplasmic shuttling of HDAC4. However, little is known about HDAC4 and its roles in ischemic stroke...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28052874/inhibition-of-hdac6-protects-against-rhabdomyolysis-induced-acute-kidney-injury
#4
Shi Yingfeng, Xu Liuqing, Tang Jinhua, Fang Lu, Ma Shuchen, Ma Xiaoyan, Nie Jing, Pi Xiaoling, Qiu Andong, Zhuang Shougang, Liu Na
Histone deacetylase 6 (HDAC6) inhibition has been reported to protect against ischemic stroke and prolong survival after sepsis in animal models. However, it remains unknown whether HDAC6 inhibition offers a renoprotective effect after acute kidney injury (AKI). In this study, we examined the therapeutic effect of tubastatin A (TA), a highly selective inhibitor of HDAC6, on AKI in a murine model of glycerol (GL) injection-induced rhabdomyolysis. Following GL injection, the mice developed severe acute tubular injury as indicated by renal dysfunction, expression of neutrophil gelatinase-associated lipocalin (NGAL), an injury marker of renal tubules and increase of TUNEL positive tubular cells...
January 4, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27965534/inhibition-of-histone-deacetylase-3-hdac3-mediates-ischemic-preconditioning-and-protects-cortical-neurons-against-ischemia-in-rats
#5
Xiaoyu Yang, Qimei Wu, Lei Zhang, Linyin Feng
Brain ischemic preconditioning (PC) provides vital insights into the endogenous protection against stroke. Genomic and epigenetic responses to PC condition the brain into a state of ischemic tolerance. Notably, PC induces the elevation of histone acetylation, consistent with evidence that histone deacetylase (HDAC) inhibitors protect the brain from ischemic injury. However, less is known about the specific roles of HDACs in this process. HDAC3 has been implicated in several neurodegenerative conditions. Deletion of HDAC3 confers protection against neurotoxicity and neuronal injury...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27956075/natural-product-htp-screening-for-attenuation-of-cytokine-induced-neutrophil-chemo-attractants-cincs-and-no2-in-lps-ifn%C3%AE-activated-glioma-cells
#6
Elizabeth A Mazzio, David Bauer, Patricia Mendonca, Equar Taka, Karam F A Soliman
Chronic and acute central nervous system (CNS) inflammation are contributors toward neurological injury associated with head trauma, stroke, infection, Parkinsons or Alzheimers disease. CNS inflammatory illnesses can also contribute toward risk of developing glioblastoma multiforme (GBM). With growing public interest in complementary and alternative medicines (CAMs), we conduct a high throughput (HTP) screening of >1400 natural herbs, plants and over the counter (OTC) products for anti-inflammatory effects on lipopolysaccharide (LPS)/interferon gamma (IFNγ) activated C6 glioma cells...
January 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27905989/the-histone-deacetylase-inhibitor-sodium-butyrate-exhibits-neuroprotective-effects-for-ischemic-stroke-in-middle-aged-female-rats
#7
Min Jung Park, Farida Sohrabji
BACKGROUND: Sodium butyrate (NaB) is a histone deacetylase (HDAC) inhibitor exhibiting anti-inflammatory and neuroprotective effects in a rat ischemic model of stroke as well as a myocardial ischemia model. Although clinical evidence shows that older women are at higher risk for stroke occurrence and greater stroke severity, no studies have evaluated the effectiveness of NaB either in females or in older animals. METHODS: To determine the effects of NaB on stroke in older females, acyclic middle-aged Sprague-Dawley female rats (9-11 months old, constant diestrus) were subject to middle cerebral artery occlusion (MCAo) by intracerebral injection of recombinant endothelin-1...
December 1, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27722928/hdac-inhibitor-sodium-butyrate-mediated-epigenetic-regulation-enhances-neuroprotective-function-of-microglia-during-ischemic-stroke
#8
Radhika Patnala, Thiruma V Arumugam, Neelima Gupta, S Thameem Dheen
Cerebral ischemia leads to neuroinflammation and activation of microglia which further contribute to stroke pathology. Understanding regulation of microglial activation will aid in the development of therapeutic strategies that mitigate microglia-mediated neurotoxicity in neuropathologies, including ischemia. In this study, we investigated the epigenetic regulation of microglial activation by studying histone modification histone 3-lysine 9-acetylation (H3K9ac) and its regulation by histone deacetylase (HDAC) inhibitors...
October 8, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27664837/insights-into-the-epigenetic-mechanisms-involving-histone-lysine-methylation-and-demethylation-in-ischemia-induced-damage-and-repair-has-therapeutic-implication
#9
Sumana Chakravarty, Priya Jhelum, Unis Ahmad Bhat, Wenson D Rajan, Swati Maitra, Salil S Pathak, Anant B Patel, Arvind Kumar
Cerebral ischemic stroke is one of the leading causes of death and disability worldwide. Therapeutic interventions to minimize ischemia-induced neural damage are limited due to poor understanding of molecular mechanisms mediating complex pathophysiology in stroke. Recently, epigenetic mechanisms mostly histone lysine (K) acetylation and deacetylation have been implicated in ischemic brain damage and have expanded the dimensions of potential therapeutic intervention to the systemic/local administration of histone deacetylase inhibitors...
January 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27642596/polymorphism-of-hdac9-gene-is-associated-with-increased-risk-of-acute-coronary-syndrome-in-chinese-han-population
#10
Zhenhua Han, Xin Dong, Chaoying Zhang, Yue Wu, Zuyi Yuan, Xinhong Wang
Recent genome-wide association studies (GWAS) have indicated an association of histone deacetylase 9 (HDAC9) genetic variant with large-vessel stroke and coronary artery disease, among the European population. However, whether HDAC9 gene is associated with an increased susceptibility to acute coronary syndrome (ACS) in Chinese Han population is not known. A total of 472 patients, including patients with ACS (N = 309), and those with chest pain syndrome (controls, N = 163) were enrolled. Genotyping for HDAC9 gene was performed using the ligation detection reaction assay...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27578020/sodium-butyrate-a-histone-deacetylase-inhibitor-exhibits-neuroprotective-neurogenic-effects-in-a-rat-model-of-neonatal-hypoxia-ischemia
#11
Malgorzata Ziemka-Nalecz, Joanna Jaworska, Joanna Sypecka, Rafał Polowy, Robert K Filipkowski, Teresa Zalewska
Neonatal hypoxic-ischemic (HI) injury still remains an important issue as it is a major cause of neonatal death and neurological dysfunctions. Currently, there are no well-established treatments to reduce brain damage and its long-term sequel in infants. Recently, reported data show that histone deacetylase inhibitors provide neuroprotection in adult stroke models. However, the proof of their relevance in vivo after neonatal HI brain injury remains particularly limited. In the present study, we show neuroprotective/neurogenic effect of sodium butyrate (SB), one of histone deacetylase inhibitors (HDACis), in the dentate gyrus of HI-injured immature rats...
August 30, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27513861/hdaci-valproic-acid-vpa-and-suberoylanilide-hydroxamic-acid-saha-delay-but-fail-to-protect-against-warm-hepatic-ischemia-reperfusion-injury
#12
Dietrich A Ruess, Moriz Probst, Goran Marjanovic, Uwe A Wittel, Ulrich T Hopt, Tobias Keck, Dirk Bausch
BACKGROUND: Histone deacetylases (HDAC) catalyze N-terminal deacetylation of lysine-residues on histones and multiple nuclear and cytoplasmic proteins. In various animal models, such as trauma/hemorrhagic shock, ischemic stroke or myocardial infarction, HDAC inhibitor (HDACi) application is cyto- and organoprotective and promotes survival. HDACi reduce stress signaling, cell death and inflammation. Hepatic ischemia-reperfusion (I/R) injury during major liver resection or transplantation increases morbidity and mortality...
2016: PloS One
https://www.readbyqxmd.com/read/27494404/hdac9-variant-rs2107595-modifies-susceptibility-to-coronary-artery-disease-and-the-severity-of-coronary-atherosclerosis-in-a-chinese-han-population
#13
Xue-Bin Wang, Ya-di Han, Shrestha Sabina, Ning-Hua Cui, Shuai Zhang, Ze-Jin Liu, Cong Li, Fang Zheng
A previous genome-wide association study showed that a single nucleotide polymorphism (SNP) rs2107595 in histone deacetylase 9 (HDAC9) gene was associated with large artery stroke (LAS) in Caucasians. Based on the similar atherosclerotic pathogenesis between LAS and coronary artery disease (CAD), we aimed to evaluate the associations of SNP rs2107595 with CAD risk and the severity of coronary atherosclerosis in a Chinese Han population, and explore the potential gene-environment interactions among SNP rs2107595 and conventional CAD risk factors...
2016: PloS One
https://www.readbyqxmd.com/read/27165113/clinacanthus-nutans-protects-cortical-neurons-against-hypoxia-induced-toxicity-by-downregulating-hdac1-6
#14
Hsin-Da Tsai, Jui-Sheng Wu, Mei-Han Kao, Jin-Jer Chen, Grace Y Sun, Wei-Yi Ong, Teng-Nan Lin
Many population-based epidemiological studies have unveiled an inverse correlation between intake of herbal plants and incidence of stroke. C. nutans is a traditional herbal medicine widely used for snake bite, viral infection and cancer in Asian countries. However, its role in protecting stroke damage remains to be studied. Despite of growing evidence to support epigenetic regulation in the pathogenesis and recovery of stroke, a clear understanding of the underlying molecular mechanisms is still lacking. In the present study, primary cortical neurons were subjected to in vitro oxygen-glucose deprivation (OGD)-reoxygenation and hypoxic neuronal death was used to investigate the interaction between C...
September 2016: Neuromolecular Medicine
https://www.readbyqxmd.com/read/27131779/nrf2-antioxidant-defense-pathway-is-involved-in-the-neuroprotective-effects-of-sirt1-against-focal-cerebral-ischemia-in-rats-after-hyperbaric-oxygen-preconditioning
#15
Fen Xue, Jin-Wen Huang, Pei-Yan Ding, Hong-Gang Zang, Zhi-Jian Kou, Ting Li, Juan Fan, Zheng-Wu Peng, Wen-Jun Yan
Sirtuin 1 (Sirt1) is a class III histone deacetylase involved in neuroprotection induced by hyperbaric oxygen preconditioning (HBO-PC) in animal models of ischemia. However, the underlying mechanisms remain to be illustrated. In the present study, rats exposed to middle cerebral artery occlusion (MCAO) were used to establish an ischemic stroke model. The infarct volume ratio, neurobehavioral score, and expressions of Sirt1, nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase 1 (HO-1), and superoxide dismutase 1 (SOD1) were evaluated at 7 days after reperfusion, and the level of malondialdehyde (MDA) was used to assess oxidative stress...
August 1, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27103167/class-iia-histone-deacetylases-affect-neuronal-remodeling-and-functional-outcome-after-stroke
#16
Haifa Kassis, Amjad Shehadah, Chao Li, Yi Zhang, Yisheng Cui, Cynthia Roberts, Neema Sadry, Xianshuang Liu, Michael Chopp, Zheng Gang Zhang
We have previously demonstrated that stroke induces nuclear shuttling of class IIa histone deacetylase 4 (HDAC4). Stroke-induced nuclear shuttling of HDAC4 is positively and significantly correlated with improved indices of neuronal remodeling in the peri-infarct cortex. In this study, using a rat model for middle cerebral artery occlusion (MCAO), we tested the effects of selective inhibition of class IIa HDACs on functional recovery and neuronal remodeling when administered 24hr after stroke. Adult male Wistar rats (n = 15-17/group) were subjected to 2 h MCAO and orally gavaged with MC1568 (a selective class IIa HDAC inhibitor), SAHA (a non-selective HDAC inhibitor), or vehicle-control for 7 days starting 24 h after MCAO...
June 2016: Neurochemistry International
https://www.readbyqxmd.com/read/26971525/sirt1-role-under-the-condition-of-ischemia-hypoxia
#17
REVIEW
Xiaofei Meng, Jin Tan, Mengmeng Li, Shuling Song, Yuyang Miao, Qiang Zhang
Silent information regulator factor 2-related enzyme 1 (sirtuin 1, Sirt1) is a nicotinamide adenine dinucleotide-dependent deacetylase, which can deacetylate histone and non-histone proteins and other transcription factors, and is involved in the regulation of many physiological functions, including cell senescence, gene transcription, energy balance, and oxidative stress. Ischemia/hypoxia injury remains an unresolved and complicated situation in the diseases of ischemia stroke, heart failure, and coronary heart disease, especially among the old folks...
January 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/26969532/nuclear-translocation-of-histone-deacetylase-4-induces-neuronal-death-in-stroke
#18
Hui Yuan, Kyle Denton, Lin Liu, Xue-Jun Li, Sharon Benashski, Louise McCullough, Jun Li
Mounting evidence suggests that epigenetic modifications play critical roles in the survival/death of stressed neurons. Chief among these modifications is the deacetylation of histones within the chromatin by histone deacetylases (HDACs). HDAC4 is highly expressed in neurons and is usually trapped in cytosol. However, tightly regulated signal-dependent shuttling of this molecule between cytosol and nucleus occurs. Here, we studied the intracellular trafficking of HDAC4 and regulatory mechanisms during stroke...
July 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/26894397/the-emerging-role-of-epigenetics-in-cerebral-ischemia
#19
Zhiping Hu, Bingwu Zhong, Jieqiong Tan, Chunli Chen, Qiang Lei, Liuwang Zeng
Despite great progresses in the treatment and prevention of ischemic stroke, it is still among the leading causes of death and serious long-term disability all over the world, indicating that innovative neural regenerative and neuroprotective agents are urgently needed for the development of therapeutic approaches with greater efficacy for ischemic stroke. More and more evidence suggests that a spectrum of epigenetic processes play an important role in the pathophysiology of cerebral ischemia. In the present review, we first discuss recent developments in epigenetic mechanisms, especially their roles in the pathophysiology of cerebral ischemia...
February 19, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/26865248/hdac9-exacerbates-endothelial-injury-in-cerebral-ischaemia-reperfusion-injury
#20
Weichen Shi, Xinbing Wei, Ziying Wang, Huirong Han, Yi Fu, Jiang Liu, Yan Zhang, Jian Guo, Chuanqiao Dong, Di Zhou, Quan Zhou, Yuxin Chen, Fan Yi
Histone deacetylase (HDAC) 9, a member of class II HDACs, regulates a wide variety of normal and abnormal physiological functions, which is usually expressed at high levels in the brain and skeletal muscle. Although studies have highlighted the importance of HDAC-mediated epigenetic processes in the development of ischaemic stroke and very recent genome-wide association studies have identified a variant in HDAC9 associated with large-vessel ischemic stroke, the molecular events by which HDAC9 induces cerebral injury keep unclear...
June 2016: Journal of Cellular and Molecular Medicine
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