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https://www.readbyqxmd.com/read/27913583/epigenetic-control-of-microsomal-prostaglandin-e-synthase-1-by-hdac-mediated-recruitment-of-p300
#1
Christian Fork, Andrea E Vasconez, Patrick Janetzko, Carlo Angioni, Yannick Schreiber, Nerea Ferreiros, Gerd Geisslinger, Matthias S Leisegang, Dieter Steinhilber, Ralf P Brandes
: Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most widely used medicine to treat pain, fever, inflammation and to inhibit platelet function. Understanding the expression regulation of enzymes of the prostanoid pathway is of great medical relevance. Histone acetylation crucially controls gene expression. We set out to identify the impact of histone deacetylases (HDACs) on the generation of prostanoids and examine the consequences on vascular function. Inhibition of HDACs (HDACi) with the pan HDAC inhibitor SAHA attenuated prostaglandin E2 (PGE2) generation in the murine vasculature and in human vascular smooth muscle cells...
December 2, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27910732/binding-of-anti-cardiovascular-drug-to-serum-albumin-an-insight-in-the-light-of-spectroscopic-and-computational-approaches
#2
Tajalli Ilm Chandel, Gulam Rabbani, MohsinVahid Khan, Masihuz Zaman, Parvez Alam, Yasser Shahein, Rizwan Hasan Khan
Isoprenaline hydrochloride is a potential cardiovascular drug helps in the smooth functioning of the heart muscles. So, we have performed the binding study of ISO with BSA. This study was investigated by UV absorption, fluorescence, synchronous fluorescence, circular dichroism etc. The analysis of intrinsic fluorescence data showed the low binding affinity of ISO. The binding constant Kb was 2.8×103 M-1 and binding stoichiometry (n) was approximately one and the Gibb's free energy change at 310 K was determined to be -8...
December 2, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27909707/in-vitro-study-of-the-host-responses-to-model-biomaterials-via-a-fibroblast-macrophage-co-culture-system
#3
Guoying Zhou, Andrea Liedmann, Chandralekha Chatterjee, Thomas Groth
Surface properties are believed to play important roles in initial inflammatory and subsequent wound healing/fibrotic responses after implantation of biomaterials. To investigate the surface property effect in mediating these host responses, we used an in vitro fibroblast/macrophage co-culture model established with a cell migration chamber, and a series of self-assembling monolayers (SAMs) bearing different terminal groups as model surfaces to study the effect of surface properties on macrophage fusion, fibroblast attachment, spreading morphology, proliferation, outgrowth, as well as pro-(interleukin-6) and anti-(interleukin-10) inflammatory cytokine production, expression of ED-A fibronectin (FN) and alpha-smooth muscle actin (α-SMA)...
December 2, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27907859/near-infrared-mediated-quantum-dots-and-paclitaxel-co-loaded-nanostructured-lipid-carriers-for-cancer-theragnostic
#4
Livesey David Olerile, Yongjun Liu, Bo Zhang, Tianqi Wang, Shengjun Mu, Jing Zhang, Lesego Selotlegeng, Na Zhang
Timing is an important factor in cancer management. Theragnostic systems have benefit of improving patients' life-quality by expediting therapeutic decisions. The objective of this study was to explore the potential of co-loaded [quantum dots (CdTe/CdS/ZnS) and paclitaxel] NLC (nanostructured lipid carriers) as a parenteral multifunctional delivery system. The co-loaded NLC was prepared by emulsion-evaporation and low temperature-solidification method utilising glyceryl monostearate, oleic acid, and soya phosphatidylcholine as lipid matrix...
November 24, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27903375/-in-vivo-and-in-vitro-effects-of-cd137-stimulation-on-vascular-calcification-in-high-fat-diet-fed-apoe-mice
#5
Y Chen, J C Yan, J Y Weng, Z Q Wang, C P Wang, C Shao
Objective: To investigate the effect and related mechanism of CD137 stimulation on aortic atherosclerotic plaque calcification in high fat diet fed ApoE(-/-) mice and on calcification of vascular smooth muscle cells (VSMCs). Methods: (1) ApoE(-/-) mice fed with high fat diet were randomly divided into 3 groups: CD137 activated group (treated by 200 μg CD137 agonist i. p. once per week for 6 weeks, n=5); CD137 inhibited group (anti-CD137 group: 200 μg anti-CD137 antibody + 200 μg CD137 agonist, i. p., once per week for 6 weeks, n=5) and control group (n=5)...
October 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27903229/an-overview-of-neolignans-of-the-genus-piper-l-isolation-methods-and-biological-activities
#6
Arthur Ladeira Macedo, Thais Carvalho Costa Dos Santos, Alessandra Leda Valverde, Davyson de Lima Moreira, Thatyana Rocha Alves Vasconcelos
The genus Piper L. has the shikimic acid pathway predominantly expressed, biosynthesizing many cinnamic acid derivatives (CAD). Neolignans comprise an important class of CAD that exhibit a wide range of pharmacological properties such as antibacterial, antitumor, insecticidal, anti-inflammatory, antioxidant, smooth muscle relaxant, neuroprotective, antiprotozoal and against platelet aggregation factor. These substances have been extracted and isolated from Piper species using different technics. The present review aims to summarize extraction and isolation methods and biological activities of the different types of neolignans covering the period from 1968 to January 2016...
November 29, 2016: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/27902451/vitamin-d-and-male-reproductive-system
#7
Pablo R Costanzo, Pablo Knoblovits
Vitamin D deficiency is a highly prevalent worldwide condition and affects people of all ages. The most important role of vitamin D is the regulation of intestinal calcium absorption and metabolism of calcium and phosphorus to maintain muscle and bone homeostasis. Furthermore, in recent years it has been discovered that the vitamin D receptor (VDR) is widely distributed in many organs and tissues where vitamin D can perform other actions that include the modulation of the immune response, insulin secretion, anti-proliferative effect on cells of vascular smooth muscle, modulation of the renin-angiotensin-aldosterone system and regulates cell growth in several organs...
December 1, 2016: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/27900030/oleanolic-acid-suppresses-vascular-smooth-muscle-cell-proliferation-by-increasing-lincrna-p21-expression
#8
Di Han, Xuejuan Zhang, Jietao Zhang, Xiaozi Guo, Yu Zheng, Shihua Sui, Jiaping Zheng
Arteriosclerosis poses a significant risk to human health and involves the thickening and hardening of the walls of arteries. Accumulated evidence demonstrates that aberrant proliferation of vascular smooth muscle cells (VSMCs) accounts for the onset and progression of arteriosclerosis. Suppression of their proliferation has been demonstrated to be an effective anti-arteriosclerosis strategy. Long non-coding RNAs (lncRNAs) have recently been observed to be implicated in the proliferation of VSMCs and arteriosclerosis...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27894811/critical-role-of-toll-like-receptors-in-pathophysiology-of-allergic-asthma
#9
Seyyed Shamsadin Athari, Seyyede Masoume Athari, Fateme Beyzay, Masoud Movassaghi, Esmaeil Mortaz, Mehdi Taghavi
Allergic asthma is an airway disease, characterized by reversible bronchoconstriction, chronic inflammation of the airway, and thickness of smooth muscle in the respiratory tract. Asthma is orchestrated by an excessive Th2-adaptive immune response, in which innate immunity plays a key role. Recently TLRs have received more and more attention as they are central to orchestrate the innate immune responses. TLRs are localized as integral membrane or intracellular glycoproteins with those on the cell surface sensing microbial antigens and the ones, localized in intracellular vesicles, sensing microbial nucleic acid species...
November 26, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27894619/expression-of-pro-fibrotic-and-anti-fibrotic-molecules-in-dimethylnitrosamine-induced-hepatic-fibrosis
#10
Roberta Sferra, Antonella Vetuschi, Simona Pompili, Eugenio Gaudio, Silvia Speca, Giovanni Latella
BACKGROUND: Hepatic fibrosis is characterized by a progressive accumulation of fibrillar extracellular matrix (ECM) proteins, produced by activated myofibroblasts which are modulated by both profibrotic and antifibrotic factors. OBJECTIVE: To evaluate in vivo the expression of pro-fibrotic molecules like avβ6 integrin, transforming growth factor-β (TGF-β), Smad3, connective tissue growth factor (CTGF) and mammalian target of Rapamycin (mTOR), as well as anti-fibrotic peroxisome proliferator-activated receptor-γ (PPARγ) in an experimental model of chronic hepatitis-associated fibrosis induced by intraperitoneal administration of dimethylnitrosamine (DMN) in mice...
November 11, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27892459/borane-catalysed-ring-opening-and-closing-cascades-of-furans-leading-to-silicon-functionalized-synthetic-intermediates
#11
Chinmoy K Hazra, Narasimhulu Gandhamsetty, Sehoon Park, Sukbok Chang
The conversion of renewable biomass resources to synthetically valuable chemicals is highly desirable, but remains a formidable challenge in regards to the substrate scope and reaction conditions. Here we present the development of tris(pentafluorophenyl)borane-catalysed conversion of furans via ring-opening and closing cascade processes to afford silicon-functionalized synthetic chemicals under transition metal-free conditions. The furan ring-opening with hydrosilanes is highly efficient (TON up to 2,000) and atom-economical without forming any byproduct to give rise to α-silyloxy-(Z)-alkenyl silanes...
November 28, 2016: Nature Communications
https://www.readbyqxmd.com/read/27891466/an-in-vitro-evaluation-of-retention-colonization-and-penetration-of-commonly-used-denture-lining-materials-by-candida-albicans
#12
Sushma Krishnamurthy, Rajendra B Hallikerimath
INTRODUCTION: Colonization of the surface by Candida albicans and related Candida species is one of the major concerns of denture lining materials. AIM: We evaluated retention, colonization and penetration of the four denture lining materials namely Molloplast B, Permaflex, GC Soft Liner and Ufi Gel Hard C by Candida albicans. MATERIAL AND METHODS: a) Evaluation of retention: Five test discs of each material with smooth surface on one side and rough on the other were prepared and surface roughness (Ra) was measured with profilometer...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27888098/identification-of-novel-peptide-motifs-in-the-serpin-maspin-that-affect-vascular-smooth-muscle-cell-function
#13
S E Jenkinson, L J Brown, J Ombor, J A Milburn, T Smulders-Srinivasan, S Veuger, D R Edwards, R Bass
Maspin is a non-inhibitory member of the serpin family that affects cell behaviours related to migration and survival. We have previously shown that peptides of the isolated G α-helix (G-helix) domain of maspin show bioactivity. Migration, invasion, adhesion and proliferation of vascular smooth muscle cells (VSMC) are important processes that contribute to the build-up of atherosclerotic plaques. Here we report the use of functional assays of these behaviours to investigate whether other maspin-derived peptides impact directly on VSMC; focusing on potential anti-atherogenic properties...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27884774/esponsive-multifunctional-drug-delivery-nanoparticles-for-elastic-matrix-regenerative-repair
#14
Balakrishnan Sivaraman, Ganesh Swaminathan, Lee Moore, Jonathan Fox, Dhruv Seshadri, Shataakshi Dahal, Ivan Stoilov, Maciej Zborowski, Robert Mecham, Anand Ramamurthi
: Arresting or regressing growth of abdominal aortic aneurysms (AAAs), localized expansions of the abdominal aorta are contingent on inhibiting chronically overexpressed matrix metalloproteases (MMPs)-2 and -9 that disrupt elastic matrix within the aortic wall, concurrent with providing a stimulus to augmenting inherently poor auto-regeneration of these matrix structures. In a recent study we demonstrated that localized, controlled and sustained delivery of doxycycline (DOX; a tetracycline-based antibiotic) from poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs), enhances elastic matrix deposition and MMP-inhibition at a fraction of the therapeutically effective oral dose...
November 21, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27883038/anti-high-mobility-group-box-1-hmgb1-antibody-attenuates-delayed-cerebral-vasospasm-and-brain-injury-after-subarachnoid-hemorrhage-in-rats
#15
Jun Haruma, Kiyoshi Teshigawara, Tomohito Hishikawa, Dengli Wang, Keyue Liu, Hidenori Wake, Shuji Mori, Hideo Kohka Takahashi, Kenji Sugiu, Isao Date, Masahiro Nishibori
Although delayed cerebral vasospasm (DCV) following subarachnoid hemorrhage (SAH) is closely related to the progression of brain damage, little is known about the molecular mechanism underlying its development. High mobility group box-1 (HMGB1) plays an important role as an initial inflammatory mediator in SAH. In this study, an SAH rat model was employed to evaluate the effects of anti-HMGB1 monoclonal antibody (mAb) on DCV after SAH. A vasoconstriction of the basilar artery (BA) associated with a reduction of nuclear HMGB1 and its translocation in vascular smooth muscle cells were observed in SAH rats, and anti-HMGB1 mAb administration significantly suppressed these effects...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27875385/effects-of-linagliptin-on-vessel-wall-healing-in-the-rat-model-of-arterial-injury-under-normal-and-diabetic-conditions
#16
Linnea Eriksson, Samuel Röhl, Robert Saxelin, Mariette Lengquist, Malin Kronqvist, Kenneth Caidahl, Claes-Göran Östenson, Anton Razuvaev
Diabetic patients suffer an increased risk of restenosis and late stent thrombosis after angioplasty, complications that are related to a defective re-endothelialization. Dipeptidyl peptidase-4 inhibitors have been suggested to exert direct effect on endothelial and smooth muscle cells (SMCs). Therefore the objective was to study if the dipeptidyl peptidase-4 inhibitor linagliptin could influence vascular repair and accelerate re-endothelialization after arterial injury in healthy and diabetic animals. Diabetic Goto-Kakizaki and healthy Wistar rats were subjected to arterial injury and treated with linagliptin or vehicle...
November 17, 2016: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/27873355/isoquercitrin-protects-against-pulmonary-hypertension-via-inhibiting-pasmcs-proliferation
#17
Yongtao Zhang, Yuqian Cui, Wei Deng, Hao Wang, Weidong Qin, Chengmin Huang, Chen Li, Jianning Zhang, Yuan Guo, Dawei Wu, Haipeng Guo
Pulmonary vascular remodeling is a common feature among the heterogeneous disorders that cause pulmonary arterial hypertension (PAH), and pulmonary arterial smooth muscle cells (PASMCs) proliferation impact the long-term prognosis of the patient. Isoquercitrin (IQC) is a flavonoid with anti-oxidative, anti-inflammatory and anti-proliferative activations. This study aimed to investigate whether IQC could prevent PASMCs proliferation and vascular remodeling in monocrotaline (MCT) induced PAH. Male Wistar rats were administered with vehicle or 0...
November 22, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27872020/niclosamide-ethanolamine-inhibits-artery-constriction
#18
Shan-Liang Li, Jie Yan, Yan-Qiu Zhang, Chang-Lin Zhen, Ming-Yu Liu, Jing Jin, Jin-Lai Gao, Xiao-Lin Xiao, Xin Shen, Yu Tai, Nan Hu, Xin-Zi Zhang, Zhi-Jie Sun, De-Li Dong
We previously demonstrated that the typical mitochondrial uncoupler carbonyl cyanide m-chlorophenylhydrazone (CCCP) inhibited artery constriction, but CCCP was used only as a pharmacological tool. Niclosamide is an anthelmintic drug approved by FDA. Niclosamide ethanolamine (NEN) is a salt form of niclosamide and has been demonstrated to uncouple mitochondrial oxidative phosphorylation. The aim of the present study was to elucidate the vasoactivity of NEN and the potential mechanisms. Isometric tension of rat mesenteric artery and thoracic aorta was recorded by using multi-wire myograph system...
November 18, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27866296/intranasal-curcumin-inhibits-pulmonary-fibrosis-by-modulating-matrix-metalloproteinase-9-mmp-9-in-ovalbumin-induced-chronic-asthma
#19
Preeti S Chauhan, D Dash, Rashmi Singh
Pulmonary fibrosis is associated with irreversible, or partially reversible, airflow obstruction and ultimately unresponsiveness to asthma therapies such as corticosteroids. Intranasal curcumin, an anti-inflammatory molecule, has been found effective in allergic asthma. To study the effect of intranasal curcumin on airway remodeling and fibrosis in murine model of chronic asthma, BALB/c mice were sensitized to ovalbumin (OVA) and exposed to OVA aerosol (2%) from day 21 (after sensitization) for 5 weeks (twice/week)...
November 19, 2016: Inflammation
https://www.readbyqxmd.com/read/27866196/down-regulation-of-protein-kinase-c-%C3%AE%C2%B5-by-prolonged-incubation-with-pma-inhibits-the-proliferation-of-vascular-smooth-muscle-cells
#20
Huixuan Zhou, Yan Wang, Quanhong Zhou, Bin Wu, Aizhong Wang, Wei Jiang, Li Wang
BACKGROUND/AIMS: Phorbol myristate acetate (PMA) exerts a pleiotropic effect on the growth and differentiation of various cells. Protein kinase Cs (PKCs) plays a central role in mediating the effects of PMA on cells. The present study investigated whether the down-regulation of protein kinase C-ε (PKC-ε) is involved in the inhibition of vascular smooth muscle cell (VSMC) proliferation caused by prolonged PMA incubation. METHODS: Using cell counting, Cell Counting Kit-8 (CCK-8) and EdU incorporation assay on VSMCs, we evaluated the inhibitory effects of prolonged incubation of PMA, of lentiviruses carrying the short-hairpin RNAs (shRNA) of PKC-ε and of the PKC-ε inhibitor peptide on the proliferation and viability of cells...
2016: Cellular Physiology and Biochemistry
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