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curcumin, stroke

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https://www.readbyqxmd.com/read/29163755/uncoupling-protein-2-a-key-player-and-a-potential-therapeutic-target-in-vascular-diseases
#1
REVIEW
Giorgia Pierelli, Rosita Stanzione, Maurizio Forte, Serena Migliarino, Marika Perelli, Massimo Volpe, Speranza Rubattu
Uncoupling protein 2 (UCP2) is an inner mitochondrial membrane protein that belongs to the uncoupling protein family and plays an important role in lowering mitochondrial membrane potential and dissipating metabolic energy with prevention of oxidative stress accumulation. In the present article, we will review the evidence that UCP2, as a consequence of its roles within the mitochondria, represents a critical player in the predisposition to vascular disease development in both animal models and in humans, particularly in relation to obesity, diabetes, and hypertension...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29040874/surface-functionalized-exosomes-as-targeted-drug-delivery-vehicles-for-cerebral-ischemia-therapy
#2
Tian Tian, Hui-Xin Zhang, Chun-Peng He, Song Fan, Yan-Liang Zhu, Cui Qi, Ning-Ping Huang, Zhong-Dang Xiao, Zu-Hong Lu, Bakhos A Tannous, Jun Gao
The safe and effective delivery of drugs is a major obstacle in the treatment of ischemic stroke. Exosomes hold great promise as an endogenous drug delivery nanosystem for the treatment of cerebral ischemia given their unique properties, including low immunogenicity, innate stability, high delivery efficiency, and ability to cross the blood-brain barrier (BBB). However, exosome insufficient targeting capability limits their clinical applications. In this study, the c(RGDyK) peptide has been conjugated to the exosome surface by an easy, rapid, and bio-orthogonal chemistry...
January 2018: Biomaterials
https://www.readbyqxmd.com/read/28678631/curcumin-protects-against-hypertension-aggravated-retinal-ischemia-reperfusion-in-a-rat-stroke-model
#3
Saibin Wang, Qian Ye, Junwei Tu, Mingying Zhang, Bin Ji
The pathogenesis of visual dysfunction in stroke remains unclear. The objective of this study was to explore retinal damage in stroke spontaneously hypertensive rats (SHR) and evaluate the role of curcumin in the retinal injury after stroke. Mature male SHR were used as the animal model for hypertension and age-matched male Wistar-Kyoto (WKY) rats as the normotensive controls. The rat model of stroke was made by bilateral vertebral artery electrocoagulation combined with transient bilateral common carotid artery ligation...
July 5, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28663065/potential-therapeutic-and-protective-effect-of-curcumin-against-stroke-in-the-male-albino-stroke-induced-model-rats
#4
Yuanyuan Zhang, Yi Yan, Yi Cao, Yongtao Yang, Qing Zhao, Rui Jing, Jiayi Hu, Juan Bao
AIMS: The present study was carried out to understand the therapeutic effect of curcumin (CUR) against stroke in the experimental animal model. The study investigates the healing effect of CUR on mitochondrial dysfunction and inflammation. MATERIALS AND METHODS: Male albino, Wistar strain rats were used for the induction of middle cerebral artery occlusion (MCAO), and reperfusion. Enzyme-linked immunosorbent assay (ELISA) was used for the determination of interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF-α) in the brain region...
August 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28596967/prdx6-upregulation-by-curcumin-attenuates-ischemic-oxidative-damage-via-sp1-in-rats-after-stroke
#5
Gongwei Jia, Botao Tan, Jingxi Ma, Lina Zhang, Xinhao Jin, Changqing Li
BACKGROUND: The role of Peroxiredoxin 6 (Prdx6) in brain ischemia remains unclear. Curcumin (Cur) treatment elicits neuroprotective effects against cerebral ischemic injury, and the associated mechanisms may involve Prdx6. In this study, we investigated whether Prdx6 and the transcription factor specific protein 1 (SP1) were involved in the antioxidant effect of Cur after stoke. METHODS: Focal cerebral ischemic injury was induced by transient middle cerebral artery occlusion for 2 hours in male Sprague-Dawley rats treated with or without Prdx6 siRNA...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28204864/high-bioavailability-curcumin-an-anti-inflammatory-and-neurosupportive-bioactive-nutrient-for-neurodegenerative-diseases-characterized-by-chronic-neuroinflammation
#6
REVIEW
Faheem Ullah, Andy Liang, Alejandra Rangel, Erika Gyengesi, Garry Niedermayer, Gerald Münch
Neuroinflammation is a pathophysiological process present in a number of neurodegenerative disorders, such as Alzheimer's disease, Huntington's disease, Parkinson's disease, stroke, traumatic brain injury including chronic traumatic encephalopathy and other age-related CNS disorders. Although there is still much debate about the initial trigger for some of these neurodegenerative disorders, during the progression of disease, broad range anti-inflammatory drugs including cytokine suppressive anti-inflammatory drugs (CSAIDs) might be promising therapeutic options to limit neuroinflammation and improve the clinical outcome...
April 2017: Archives of Toxicology
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
#7
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/27593816/is-chronic-curcumin-supplementation-neuroprotective-against-ischemia-for-antioxidant-activity-neurologic-deficit-score-or-neuronal-apoptosis-in-an-experimental-stroke-model
#8
Serdar Altinay, Murat Cabalar, Cihan Isler, Funda Yildirim, Duygu Sultan Celik, Oguzhan Zengi, Abdurrahim Tas, Ahmet Gulcubuk
AIM: To investigate the neuroprotective effect of chronic curcumin supplementation on the rat forebrain prior to ischemia and reperfusion Material and Methods: Forebrain ischemia was induced by bilateral common carotid artery occlusion for 1 hour, followed by reperfusion for 72 hours. Older rats were divided into five groups: I, 300 mg/kg oral curcumin for 21 days before ischemia and 300 mg/kg intraperitoneal curcumin after ischemia; II, 300 mg/kg intraperitoneal curcumin after ischemia; III, 300 mg/kg oral curcumin for 21 days before ischemia; IV, only ischemia; V:, sham-operated...
April 13, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27320251/curcumin-protects-against-stroke-and-increases-levels-of-notch-intracellular-domain
#9
Shuang Liu, Yungang Cao, Man Qu, Zheng Zhang, Liang Feng, Zusen Ye, Meijuan Xiao, Sheng T Hou, Rongyuan Zheng, Zhao Han
OBJECTIVES: To investigate whether curcumin regulates Notch signaling to cause neuroprotection and neurogenesis after focal ischemia reperfusion injury. METHOD: Focal ischemia reperfusion injury was modeled in rats by occluding the middle cerebral artery. These animals were given either curcumin (300 mg/kg) or corn oil (vehicle) by intraperitoneal injection starting 1 h after stroke and continuing for 7 d. In parallel, sham-operated control animals received vehicle...
June 2016: Neurological Research
https://www.readbyqxmd.com/read/27110504/in-vitro-study-on-antihypertensive-and-antihypercholesterolemic-effects-of-a-curcumin-nanoemulsion
#10
Heni Rachmawati, Irene Surya Soraya, Neng Fisheri Kurniati, Annisa Rahma
Atherosclerosis and hypertension can potentially progess into dangerous cardiovascular diseases such as myocardial infarction and stroke. Statins are widely used to lower cholesterol levels while antihypertensive agents such as captopril are widely prescribed to treat high blood pressure. Curcumin, a phenolic compound isolated from Curcuma domestica, has been proven effective for a broad spectrum of diseases, including hypertension and hypercholesterolemia. Therefore, curcumin is quite promising as an alternative therapeutic compound...
January 2016: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/26792980/design-synthesis-and-antihypertensive-activity-of-curcumin-inspired-compounds-via-ace-inhibition-and-vasodilation-along-with-a-bioavailability-study-for-possible-benefit-in-cardiovascular-diseases
#11
COMPARATIVE STUDY
Xiao-Dong Zhuang, Li-Zhen Liao, Xiao-Bian Dong, Xun Hu, Yue Guo, Zhi-Min Du, Xin-Xue Liao, Li-Chun Wang
This study describes the synthesis of a novel series of curcumin-inspired compounds via a facile synthetic route. The structures of these derivatives were ascertained using various spectroscopic and analytic techniques. The pharmacological effects of the target analogs were assessed by assaying their inhibition of angiotensin-converting enzyme (ACE). All of the synthesized derivatives exhibited considerable inhibition of ACE, with half-maximal inhibitory concentrations ranging from 1.23 to 120.32 μM. In a docking analysis with testicular ACE (tACE), the most promising inhibitor (4j) was efficiently accommodated in the deep cleft of the protein cavity, making close interatomic contacts with Glu162, His353, and Ala356, comparable with lisinopril...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/26639783/curcumin-pretreatment-attenuates-inflammation-and-mitochondrial-dysfunction-in-experimental-stroke-the-possible-role-of-sirt1-signaling
#12
Yanping Miao, Sheng Zhao, Yang Gao, Ruijun Wang, Qiong Wu, Hui Wu, Tianyou Luo
The effects of curcumin (CCM) on cerebral ischemia/reperfusion injury are not well understood. The aim of this study was to investigate whether CCM attenuates inflammation and mitochondrial dysfunction in a rat model of cerebral ischemia/reperfusion injury and whether Sirt1 is involved in these potential protective effects. Sirtinol, a Sirt1 inhibitor, was used to elucidate the underlying mechanism. Rats were subjected to 2h of transient middle cerebral artery occlusion (MCAO), followed by reperfusion for 24h...
March 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/25237726/pnipam-nanoparticles-for-targeted-and-enhanced-nose-to-brain-delivery-of-curcuminoids-uplc-esi-q-tof-ms-ms-based-pharmacokinetics-and-pharmacodynamic-evaluation-in-cerebral-ischemia-model
#13
Niyaz Ahmad, Iqbal Ahmad, Sadiq Umar, Zeenat Iqbal, Mohd Samim, Farhan Jalees Ahmad
Stroke is a one of the leading causes of disease and deaths worldwide, which causes irreversible deterioration of the central nervous system. Curcuminoids are reported to have a potential role in the amelioration of cerebral ischemia but they exhibit low serum and tissue levels due to low solubility and poor absorption. Curcumin (CUR), demethoxycurcumin (DMC) and bisdemethoxycurcumin (BDMC)-loaded PNIPAM nanoparticles (NPs) were prepared by free radical polymerization and characterized for particles size, entrapment efficiency, zeta potential, in vitro release and ex vivo permeation study...
September 2016: Drug Delivery
https://www.readbyqxmd.com/read/25230523/advances-in-herbal-medicine-for-treatment-of-ischemic-brain-injury
#14
REVIEW
Nilanjan Ghosh, Rituparna Ghosh, Zulfiqar A Bhat, Vivekananda Mandal, Sitesh C Bachar, Namsa D Nima, Otimenyin O Sunday, Subhash C Mandal
Ischemic brain injury is one of the leading causes of death worldwide and has attracted a lot of attention in the field of drug discovery. Cerebral ischemia is a complex pathological process involving a series of mechanisms, including generation of free radicals, oxidative stress, disruption of the membrane function, release of neurotransmitters and apoptosis. Thrombolytic therapy is the most effective therapeutic strategy, but the benefits are far from being absolute. Increased attention in the field of drug discovery has been focused on using natural compounds from traditional medicinal herbs for neuroprotection, which appears to be a promising therapeutic option for cerebral ischemia with minimal systemic adverse effects that could limit their long term use...
July 2014: Natural Product Communications
https://www.readbyqxmd.com/read/24788895/epigenetic-impact-of-curcumin-on-stroke-prevention
#15
REVIEW
Anuradha Kalani, Pradip K Kamat, Komal Kalani, Neetu Tyagi
The epigenetic impact of curcumin in stroke and neurodegenerative disorders is curiosity-arousing. It is derived from Curcuma longa (spice), possesses anti-oxidative, anti-inflammatory, anti-lipidemic, neuro-protective and recently shown to exhibit epigenetic modulatory properties. Epigenetic studies include DNA methylation, histone modifications and RNA-based mechanisms which regulate gene expression without altering nucleotide sequences. Curcumin has been shown to affect cancer by altering epigenetic changes but its role as an epigenetic agent in cerebral stroke has not been much explored...
April 2015: Metabolic Brain Disease
https://www.readbyqxmd.com/read/24748101/histone-acetylation-and-creb-binding-protein-are-required-for-neuronal-resistance-against-ischemic-injury
#16
Ferah Yildirim, Shengbo Ji, Golo Kronenberg, Angel Barco, Roman Olivares, Eva Benito, Ulrich Dirnagl, Karen Gertz, Matthias Endres, Christoph Harms, Andreas Meisel
Epigenetic transcriptional regulation by histone acetylation depends on the balance between histone acetyltransferase (HAT) and deacetylase activities (HDAC). Inhibition of HDAC activity provides neuroprotection, indicating that the outcome of cerebral ischemia depends crucially on the acetylation status of histones. In the present study, we characterized the changes in histone acetylation levels in ischemia models of focal cerebral ischemia and identified cAMP-response element binding protein (CREB)-binding protein (CBP) as a crucial factor in the susceptibility of neurons to ischemic stress...
2014: PloS One
https://www.readbyqxmd.com/read/24651933/curcumin-attenuates-ischemia-like-injury-induced-il-1%C3%AE-elevation-in-brain-microvascular-endothelial-cells-via-inhibiting-mapk-pathways-and-nuclear-factor-%C3%AE%C2%BAb-activation
#17
Hua-Jiang Dong, Chong-Zhi Shang, Ding-Wei Peng, Jian Xu, Peng-Xiao Xu, Li Zhan, Peng Wang
Inflammatory reactions play a key role in the cerebral injury after stroke or other ischemic brain diseases. Curcumin, which is extracted from herb turmeric, has been reported to have anti-inflammatory effects. The present study was aimed to investigate the anti-inflammatory effects of curcumin on oxygen-glucose deprivation (OGD) injured brain microvascular endothelial cells (BMECs). Rat BMECs were used and the results showed that OGD induced a significant elevation of the leakage of lactate dehydrogenase and the secretion of the proinflammation cytokine, IL-1β...
September 2014: Neurological Sciences
https://www.readbyqxmd.com/read/24335167/dietary-curcumin-ameliorates-aging-related-cerebrovascular-dysfunction-through-the-ampk-uncoupling-protein-2-pathway
#18
Yunfei Pu, Hexuan Zhang, Peijian Wang, Yu Zhao, Qiang Li, Xing Wei, Yuanting Cui, Jing Sun, Qianhui Shang, Daoyan Liu, Zhiming Zhu
BACKGROUND/AIMS: Age-related cerebrovascular dysfunction contributes to stroke, cerebral amyloid angiopathy, cognitive decline and neurodegenerative diseases. One pathogenic mechanism underlying this effect is increased oxidative stress. Up-regulation of mitochondrial uncoupling protein 2 (UCP2) plays a crucial role in regulating reactive oxygen species (ROS) production. Dietary patterns are widely recognized as contributors to cardiovascular and cerebrovascular disease. In this study, we tested the hypothesis that dietary curcumin, which has an antioxidant effect, can improve aging-related cerebrovascular dysfunction via UCP2 up-regulation...
2013: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/24314955/curcumin-treatment-protects-against-renal-ischemia-and-reperfusion-injury-induced-cardiac-dysfunction-and-myocardial-injury
#19
T-H Chen, Y-C Yang, J-C Wang, J-J Wang
OBJECTIVES: Renal ischemia and reperfusion (I/R) injury frequently leads to acute renal failure (ARF) and multiple-organ injury with a substantial morbidity rate. The primary cause of ARF-associated death is, however, cardiac failure instead of renal failure itself, and the pathogenesis of renal I/R-induced cardiac injury is still poorly understood. We evaluated the efficacy of curcumin pretreatment on cardioprotection. METHODS: Thirty Sprague-Dawley rats were evenly divided into 3 groups of sham-operated control, renal I/R injury, and a curcumin pretreatment group...
2013: Transplantation Proceedings
https://www.readbyqxmd.com/read/23784381/a-comparative-study-of-pnipam-nanoparticles-of-curcumin-demethoxycurcumin-and-bisdemethoxycurcumin-and-their-effects-on-oxidative-stress-markers-in-experimental-stroke
#20
COMPARATIVE STUDY
Niyaz Ahmad, Sadiq Umar, Mohammad Ashafaq, Mohd Akhtar, Zeenat Iqbal, Mohd Samim, Farhan Jalees Ahmad
Oxidative stress and inflammatory damage play an important role in cerebral ischemic pathogenesis and may represent a target for treatment. The development of new strategies for enhancing drug delivery to the brain is of great importance in diagnostics and therapeutics of central nervous diseases. The present study examined the hypothesis that intranasal delivery of nanoformulation of curcuminoids would reduce oxidative stress-associated brain injury after middle cerebral artery occlusion (MCAO). The rats were subjected to 2 h of MCAO followed by 22 h reperfusion, after which the grip strength, locomotor activity was performed...
December 2013: Protoplasma
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