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histone deacetylase diabetes

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https://www.readbyqxmd.com/read/28650731/combination-treatments-with-luteolin-and-fisetin-enhance-anti-inflammatory-effects-in-high-glucose-treated-thp-1-cells-through-histone-acetyltransferase-histone-deacetylase-regulation
#1
Arang Kim, Jung-Mi Yun
Hyperglycemia leads to diabetes and its diabetic complications. In this study, we investigated the synergistic effects of luteolin and fisetin on proinflammatory cytokine secretion and its underlying epigenetic regulation in human monocytes exposed to hyperglycemic (HG) concentrations. Human monocytic cells (THP-1) were cultured under controlled (14.5 mM mannitol), normoglycemic (5.5 mM glucose), or HG (20 mM glucose) conditions in the absence or presence of the two phytochemicals for 48 h. Whereas HG conditions significantly induced histone acetylation, nuclear factor-kappa B (NF-κB) activation, interleukin 6, and tumor necrosis factor-α release from THP-1 cells; combination treatments with the two phytochemicals (500 nM fisetin, and l μM and 500 nM luteolin) suppressed NF-κB activity and inflammatory cytokine release...
June 26, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28634176/impact-of-glycemic-variability-on-chromatin-remodeling-oxidative-stress-and-endothelial-dysfunction-in-type-2-diabetic-patients-with-target-hba1c-levels
#2
Sarah Costantino, Francesco Paneni, Rodolfo Battista, Lorenzo Castello, Giuliana Capretti, Sergio Chiandotto, Luigi Tanese, Giulio Russo, Dario Pitocco, Gaetano A Lanza, Massimo Volpe, Thomas F Lüscher, Francesco Cosentino
Intensive glycemic control (IGC) targeting HbA1c fails to show an unequivocal reduction of macrovascular complications in type 2 diabetes (T2D), however the underlining mechanisms remain elusive. Epigenetic changes are emerging as important mediators of cardiovascular damage and may play a role in this setting. This study investigates whether epigenetic regulation of the adaptor protein p66(Shc), a key driver of mitochondrial oxidative stress, contributes to persistent vascular dysfunction in T2D patients despite IGC...
June 20, 2017: Diabetes
https://www.readbyqxmd.com/read/28576976/pleiotropic-and-adverse-effects-of-statins-do-epigenetics-play-a-role
#3
Stephanie C Allen, Cyril Ds Mamotte
Statins are widely used to prevent major cardiovascular events through the lowering of serum cholesterol. There is evidence that statins have pleiotropic effects, that is cholesterol-independent effects, that may also confer protection from cardiovascular disease and potentially numerous other pathologies including cancer. Statins also have a number of well described adverse effects including myopathy, rhabdomyolysis, liver damage and type 2 diabetes. This paper examines the evidence of epigenetic modifications as a contributory factor to the pleiotropic and adverse effects of statins...
June 2, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28533215/inhibition-of-hdac3-prevents-diabetic-cardiomyopathy-in-ove26-mice-via-epigenetic-regulation-of-dusp5-erk1-2-pathway
#4
Zheng Xu, Qian Tong, Zhiguo Zhang, Shudong Wang, Yang Zheng, Qiuju Liu, Lingbo Qian, Shao-Yu Chen, Jian Sun, Lu Cai
Inhibition of total histone deacetylases (HDACs) was phenomenally associated with the prevention of diabetic cardiomyopathy (DCM). However, which specific HDAC plays the key role in DCM remains unclear. The present study was designed to determine whether DCM can be prevented by specific inhibition of HDAC3 and to elucidate the mechanisms by which inhibition of HDAC3 prevent DCM. Type 1 diabetes OVE26 and age-matched wild-type mice were given the selective HDAC3 inhibitor RGFP966 or vehicle for 3 months. These mice were then sacrificed immediately or 3 months later for cardiac function and pathological examination...
May 22, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28490526/atp-citrate-lyase-is-essential-for-high-glucose-induced-histone-hyperacetylation-and-fibrogenic-gene-up-regulation-in-mesangial-cells
#5
Dilip K Deb, Yinyin Chen, Jian Sun, Youli Wang, Yan Chun Li
TThe goal of this study was to address the role of ATP-citrate lyase (ACL), an enzyme that converts citrate to acetyl-CoA, in high glucose (HG)-induced histone acetylation and pro-fibrotic gene expression. Our recent ChIP-Seq studies have demonstrated that HG induces genome-wide histone hyperacetylation in mesangial cells (MCs). Here we showed that exposure of MCs to HG markedly increased histone acetylation at the H3K9/14 and H3K18 marks and induced the expression of potent pro-fibrotic factors TGF-β1, TGF-β3 and CTGF...
May 10, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28470097/phenylbutyrate-and-%C3%AE-cell-function-contribution-of-histone-deacetylases-and-er-stress-inhibition
#6
Sabbir Khan, Sandeep K Komarya, Gopabandhu Jena
Incidences of diabetes are increasing globally due to involvement of genetic and epigenetic factors. Phenylbutyrate (PBA) is a US FDA approved drug for treatment of urea cycle disorder in children. PBA reduces endoplasmic reticulum (ER) stress and is proven as a potent histone deacetylases (HDACs) inhibitor. Chronic ER stress results in unfolding protein response, which triggers apoptosis. Abnormal ER homoeostasis is responsible for defective processing of several genes/proteins and contributes to β-cell death/failure...
May 4, 2017: Epigenomics
https://www.readbyqxmd.com/read/28444216/dietary-metabolites-derived-from-gut-microbiota-critical-modulators-of-epigenetic-changes-in-mammals
#7
Mohd Iqbal Bhat, Rajeev Kapila
The mammalian gastrointestinal tract harbors trillions of commensal microorganisms, collectively known as the microbiota. The microbiota is a critical source of environmental stimuli and, thus, has a tremendous impact on the health of the host. The microbes within the microbiota regulate homeostasis within the gut, and any alteration in their composition can lead to disorders that include inflammatory bowel disease, allergy, autoimmune disease, diabetes, mental disorders, and cancer. Hence, restoration of the gut flora following changes or imbalance is imperative for the host...
May 1, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28386366/micro-rna-19a-suppresses-interleukin-10-in-peripheral-b-cells-of-patients-with-diabetic-retinopathy
#8
Cong Wang, Qisheng You, Xusheng Cao, Huiling Guo, Xinxiao Gao, Xiaoyan Peng
A number of patients with diabetes suffer from retinopathy; the pathogenesis is to be further investigated. Recent reports indicate that micro RNA (miR) plays critical roles in the development of immune inflammation. This study test a hypothesis that miR-17-92 cluster is associated with the pathogenesis of diabetes retinopathy (DR). In this study, peripheral blood samples were collected from DR patients and healthy subjects. B cells were isolated from the blood samples to be analyzed the expression of interleukin (IL)-10...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28380414/the-role-of-sirt1-in-diabetic-cardiomyopathy
#9
REVIEW
Hedyieh Karbasforooshan, Gholamreza Karimi
The prevalence of diabetes mellitus (DM) has been increasing worldwide. Diabetic cardiomyopathy (DCP) is the major risk for diabetes associated morbidity and mortality. Hyperglycemia and hyperinsulinemia play an indispensable role in underlying mechanisms of DCP. They increase advanced glycation end products (AGEs) following a series of events leading to myocardial damage and cardiomyopathy which include oxidative stress, increased inflammation, fibrosis, hypertrophy and apoptosis. SIRT1 is a nicotinamide adenosine dinucleotide (NAD)-dependent deacetylase that removes acetyl groups from proteins which can be implicated in DCP...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28301545/implication-of-the-intestinal-microbiome-as-a-potential-surrogate-marker-of-immune-responsiveness-to-experimental-therapies-in-autoimmune-diabetes
#10
James C Needell, Charles A Dinarello, Diana Ir, Charles E Robertson, Sarah M Ryan, Miranda E Kroehl, Daniel N Frank, Danny Zipris
Type 1 diabetes (T1D) is an autoimmune proinflammatory disease with no effective intervention. A major obstacle in developing new immunotherapies for T1D is the lack of means for monitoring immune responsiveness to experimental therapies. The LEW1.WR1 rat develops autoimmunity following infection with the parvovirus Kilham rat virus (KRV) via mechanisms linked with activation of proinflammatory pathways and alterations in the gut bacterial composition. We used this animal to test the hypothesis that intervention with agents that block innate immunity and diabetes is associated with a shift in the gut microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28271209/tgf-%C3%AE-1-impairs-mechanosensation-of-human-osteoblasts-via-hdac6-mediated-shortening-and-distortion-of-primary-cilia
#11
Sabrina Ehnert, Vrinda Sreekumar, Romina H Aspera-Werz, Sahar O Sajadian, Elke Wintermeyer, Gunther H Sandmann, Christian Bahrs, Jan G Hengstler, Patricio Godoy, Andreas K Nussler
Transforming growth factor β (TGF-β) is a critical regulator of bone density owing to its multiple effects on cell growth and differentiation. Recently, we have shown that TGF-β1 effectively blocks bone morphogenetic protein (BMP) induced maturation of osteoblasts by upregulating histone deacetylase (HDAC) activity. The current study aimed at investigating the effect of rhTGF-β1 treatment on the expression of specific HDACs and their cellular effects, e.g., microtubule structures (primary cilia) and mechanosensation...
March 7, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28191472/suppression-of-excessive-histone-deacetylases-activity-in-diabetic-hearts-attenuates-myocardial-ischemia-reperfusion-injury-via-mitochondria-apoptosis-pathway
#12
Yang Wu, Yan Leng, Qingtao Meng, Rui Xue, Bo Zhao, Liying Zhan, Zhongyuan Xia
Background. Histone deacetylases (HDACs) play a pivotal role in signaling modification and gene transcriptional regulation that are essential for cardiovascular pathophysiology. Diabetic hearts with higher HDACs activity were more vulnerable to myocardial ischemia/reperfusion (MI/R) injury compared with nondiabetic hearts. We are curious about whether suppression of excessive HDACs activity in diabetic heart protects against MI/R injury. Methods. Diabetic rats were subjected to 45 min of ischemia, followed by 3 h of reperfusion...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28109123/sodium-butyrate-protects-against-high-fat-diet-induced-cardiac-dysfunction-and-metabolic-disorders-in-type-ii-diabetic-mice
#13
Ling Zhang, Jianfeng Du, Naohiro Yano, Hao Wang, Yu Tina Zhao, Patrycja M Dubielecka, Shougang Zhuang, Y Eugene Chin, Gangjian Qin, Ting C Zhao
Histone deacetylases are recently identified to act as key regulators for cardiac pathophysiology and metabolic disorders. However, the function of histone deacetylase (HDAC) in controlling cardiac performance in Type II diabetes and obesity remains unknown. Here, we determine whether HDAC inhibition attenuates high fat diet (HFD)-induced cardiac dysfunction and improves metabolic features. Adult mice were fed with either HFD or standard chow food for 24 weeks. Starting at 12 weeks, mice were divided into four groups randomly, in which sodium butyrate (1%), a potent HDAC inhibitor, was provided to chow and HFD-fed mice in drinking water, respectively...
August 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28106794/a-thoroughly-validated-virtual-screening-strategy-for-discovery-of-novel-hdac3-inhibitors
#14
Huabin Hu, Jie Xia, Dongmei Wang, Xiang Simon Wang, Song Wu
Histone deacetylase 3 (HDAC3) has been recently identified as a potential target for the treatment of cancer and other diseases, such as chronic inflammation, neurodegenerative diseases, and diabetes. Virtual screening (VS) is currently a routine technique for hit identification, but its success depends on rational development of VS strategies. To facilitate this process, we applied our previously released benchmarking dataset, i.e., MUBD-HDAC3 to the evaluation of structure-based VS (SBVS) and ligand-based VS (LBVS) combinatorial approaches...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27991918/dissociation-of-muscle-insulin-sensitivity-from-exercise-endurance-in-mice-by-hdac3-depletion
#15
Sungguan Hong, Wenjun Zhou, Bin Fang, Wenyun Lu, Emanuele Loro, Manashree Damle, Guolian Ding, Jennifer Jager, Sisi Zhang, Yuxiang Zhang, Dan Feng, Qingwei Chu, Brian D Dill, Henrik Molina, Tejvir S Khurana, Joshua D Rabinowitz, Mitchell A Lazar, Zheng Sun
Type 2 diabetes and insulin resistance are associated with reduced glucose utilization in the muscle and poor exercise performance. Here we find that depletion of the epigenome modifier histone deacetylase 3 (HDAC3) specifically in skeletal muscle causes severe systemic insulin resistance in mice but markedly enhances endurance and resistance to muscle fatigue, despite reducing muscle force. This seemingly paradoxical phenotype is due to lower glucose utilization and greater lipid oxidation in HDAC3-depleted muscles, a fuel switch caused by the activation of anaplerotic reactions driven by AMP deaminase 3 (Ampd3) and catabolism of branched-chain amino acids...
February 2017: Nature Medicine
https://www.readbyqxmd.com/read/27989964/histone-acetylation-of-glucose-induced-thioredoxin-interacting-protein-gene-expression-in-pancreatic-islets
#16
Pradeep Bompada, David Atac, Cheng Luan, Robin Andersson, Judit Domènech Omella, Emilia Ottosson Laakso, Jason Wright, Leif Groop, Yang De Marinis
Thioredoxin-interacting protein (TXNIP) has been shown to be associated with glucose-induced deterioration of pancreatic beta cell function in diabetes. However, whether epigenetic mechanisms contribute to the regulation of TXNIP gene expression by glucose is not clear. Here we studied how glucose exerts its effect on TXNIP gene expression via modulation of histone acetylation marks. To achieve this, we applied clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/Cas9) to knock out histone acetyltransferase (HAT) p300 in a rat pancreatic beta cell line INS1 832/13...
December 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27928959/potential-application-of-5-aryl-substituted-2-amino-benzamide-type-of-hdac1-2-selective-inhibitors-to-pharmaceuticals
#17
Shinichi Uesato, Yoshiyuki Hirata, Tsutomu Sasaki
Diverse histone deacetylase (HDAC) inhibitors have been developed to date. They control not only histone modification but also gene expression of diverse proteins and thus are expected to provide useful therapeutic effects on various diseases, including cancers, psychiatric and cognitive disorders and neurodegenerative diseases, as well as cardiovascular and diabetic diseases. Some isoform-nonselective HDAC inhibitors have been successfully used for clinical treatments of the haematological malignancies, including advanced forms of cutaneous T-cell lymphoma, refractory peripheral T-cell lymphoma and multiple myeloma...
December 8, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27904654/augmentation-of-histone-deacetylase-3-hdac3-epigenetic-signature-at-the-interface-of-proinflammation-and-insulin-resistance-in-patients-with-type-2-diabetes
#18
Chandrakumar Sathishkumar, Paramasivam Prabu, Mahalingam Balakumar, Raji Lenin, Durai Prabhu, Ranjith Mohan Anjana, Viswanathan Mohan, Muthuswamy Balasubramanyam
BACKGROUND: A role of proinflammation has been implicated in the pathogenesis of diabetes, but the up-stream regulatory signals and molecular signatures are poorly understood. While histone modifications such as changes in histone deacetylase (HDAC) are emerging as novel epigenetic biomarkers, there is lack of studies to demonstrate their clinical relevance in diabetes. Therefore, we investigated the extent of HDAC machinery and inflammatory signals in peripheral blood mononuclear cells (PBMCs) from patients with type 2 diabetes mellitus (T2DM) compared to control subjects...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27904046/cocl2-decreases-ec-sod-expression-through-histone-deacetylation-in-cos7-cells
#19
Shuhei Hattori, Tetsuro Kamiya, Hirokazu Hara, Masayuki Ninomiya, Mamoru Koketsu, Tetsuo Adachi
Extracellular-superoxide dismutase (EC-SOD), one of the SOD isozymes, is negatively regulated under hypoxic conditions, and decreases in its expression may exacerbate vascular diseases. Moreover, epigenetics, such as DNA methylation and histone modifications, are known to play a critical role in the progression of cancer, type 2 diabetes, and atherosclerosis. We previously investigated the involvement of reactive oxygen species (ROS) and p38 mitogen-activated protein kinase (MAPK) in decreases in EC-SOD expression in hypoxic COS7 cells; however, the role of epigenetics in this process currently remains unknown...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27901066/greater-efficacy-of-atorvastatin-versus-a-non-statin-lipid-lowering-agent-against-renal-injury-potential-role-as-a-histone-deacetylase-inhibitor
#20
Ravi Shankar Singh, Dharmendra Kumar Chaudhary, Aradhana Mohan, Praveen Kumar, Chandra Prakash Chaturvedi, Carolyn M Ecelbarger, Madan M Godbole, Swasti Tiwari
Statins, 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase inhibitors have been shown to improve diabetic nephropathy. However, whether they provide protection via Histone deacetylases (HDAC) inhibition is not clear. We conducted a comparative evaluation of Atorvastatin (AT) versus the non-statin cholesterol-lowering drug, Ezetimibe (EZT) on severity of diabetic nephropathy. Streptozotocin-treated male Wistar rats were fed a cholesterol-supplemented diet and gavaged daily with vehicle, AT or EZT. Control rats received normal diet and gavaged vehicle (n = 8-9/group)...
November 30, 2016: Scientific Reports
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