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https://www.readbyqxmd.com/read/28108276/hydrogen-sulfide-reduces-rage-toxicity-through-inhibition-of-its-dimer-formation
#1
Hong Zhou, Lei Ding, Zhiyuan Wu, Xu Cao, Qichun Zhang, Li Lin, Jin-Song Bian
RAGE is important in the development of neurodegenerative diseases. The present study was designed to investigate the effect of hydrogen sulfide (H2S, an endogenous gaseous mediator) on the cytotoxicity caused by RAGE activation during the chronic oxidative stress. Aβ1-42 decreased cell viability and induced cell senescence in SH-SY5Y cells. Treatment with advanced glycation end products (AGEs) induced cell injury in HEK293 cells stably expressing RAGE (HEK293-RAGE) and stimulated inflammatory responses in SH-SY5Y cells...
January 17, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28105084/picroside-ii-protects-myocardium-from-ischemia-reperfusion-induced-injury-through-inhibition-of-the-inflammatory-response
#2
Jian-Zhe Li, Mei-Qing Xie, Dan Mo, Xiao-Fang Zhao, Shu-Yi Yu, Li-Juan Liu, Cheng Wu, Yang Yang
The inflammatory response is important in the pathogenesis of myocardial ischemia/reperfusion (I/R) injury. Picroside II, the primary active constituent of Picrorhizae, has been reported to protect the myocardium from I/R-induced injury, however, the exact mechanism underlying these protective effects remains unclear. The aim of the present study was to investigate the mechanism underlying the protective effects of picroside II on I/R-induced myocardial injury. Adult male Sprague-Dawley rats underwent 1 h left coronary artery occlusion followed by 3 h reperfusion...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101123/regulatory-landscape-of-age-rage-oxidative-stress-axis-and-its-modulation-by-ppar%C3%AE-activation-in-high-fructose-diet-induced-metabolic-syndrome
#3
Luca Cannizzaro, Giuseppe Rossoni, Federica Savi, Alessandra Altomare, Cristina Marinello, Thammakorn Saethang, Marina Carini, D Michael Payne, Trairak Pisitkun, Giancarlo Aldini, Asada Leelahavanichkul
BACKGROUND: The AGE-RAGE-oxidative stress (AROS) axis is involved in the onset and progression of metabolic syndrome induced by a high-fructose diet (HFD). PPARγ activation is known to modulate metabolic syndrome; however a systems-level investigation looking at the protective effects of PPARγ activation as related to the AROS axis has not been performed. The aim of this work is to simultaneously characterize multiple molecular parameters within the AROS axis, using samples taken from different body fluids and tissues of a rat model of HFD-induced metabolic syndrome, in the presence or absence of a PPARγ agonist, Rosiglitazone (RGZ)...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28099448/the-effects-of-low-power-laser-irradiation-on-inflammation-and-apoptosis-in-submandibular-glands-of-diabetes-induced-rats
#4
Cíntia Yuki Fukuoka, Alyne Simões, Toshikazu Uchiyama, Victor Elias Arana-Chavez, Yoshimitsu Abiko, Noboru Kuboyama, Ujjal K Bhawal
Diabetes can lead to dysfunction of the secretory capacity in salivary glands. Activation of the receptor for advanced glycation end products (RAGE) and its ligands has been suggested to participate in chronic disorders such as diabetes and its complications. In this study, the expression of RAGE, high mobility group box 1 (HMGB1) and advanced glycation end products (AGE), as well as the effects of low-power laser irradiation (LPLI) in salivary glands of diabetic rats were evaluated, and the mechanisms involved were characterized...
2017: PloS One
https://www.readbyqxmd.com/read/28099113/rage-deficiency-predisposes-mice-to-virus-induced-paucigranulocytic-asthma
#5
Jaisy Arikkatt, Md Ashik Ullah, Kirsty Renfree Short, Vivan Zhang, Wan Jun Gan, Zhixuan Loh, Rhiannon B Werder, Jennifer Simpson, Peter D Sly, Stuart B Mazzone, Kirsten M Spann, Manuel Ar Ferreira, John W Upham, Maria B Sukkar, Simon Phipps
Asthma is a chronic inflammatory disease. Although many patients with asthma develop type-2 dominated eosinophilic inflammation, a number of individuals develop paucigranulocytic asthma, which occurs in the absence of eosinophilia or neutrophilia. The aetiology of paucigranulocytic asthma is unknown. However, both respiratory syncytial virus (RSV) infection and mutations in the receptor for advanced glycation endproducts (RAGE) are risk factors for asthma development. Here, we show that RAGE deficiency impairs anti-viral immunity during an early-life infection with pneumonia virus of mice (PVM; a murine analogue of RSV)...
January 18, 2017: ELife
https://www.readbyqxmd.com/read/28092162/clinical-use-of-high-mobility-group-box-1-and-the-receptor-for-advanced-glycation-end-products-in-the-prognosis-and-risk-stratification-of-heart-failure-a-literature-review
#6
Amanda M Marsh, Austin Huy Nguyen, Taylor M Parker, Devendra K Agrawal
Heart failure (HF) is a clinical syndrome that represents the end stage of heart disease and remains the leading cause of morbidity and mortality worldwide. As heart failure mortality rates remain elevated, additional biomarkers that facilitate early detection or risk stratification in HF is of particularly great interest. High mobility group box 1 (HMGB1) and receptor for advanced glycation end products (RAGE) cause the activation of intracellular signaling, gene expression, and production of inflammatory cytokines and have been linked to many inflammatory disease states such as diabetes mellitus and atherosclerosis...
November 30, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28091942/all-trans-retinoic-acid-supplementation-prevents-cardiac-fibrosis-and-cytokines-induced-by-methylglyoxal
#7
Umadevi Subramanian, Devipriya Nagarajan
Methylglyoxal (MG), a metabolic intermediate of glycolysis is a precursor for endogeneous production of advanced glycation end-products. The increased production of MG have negative influence over the structure and function of different biomolecules and thus plays an important role in the pathogenesis of diabetic cardiac complications. Retinoic acid (RA), an active metabolite of vitamin A, has a major role in preventing cardiac remodeling and ventricular fibrosis. Hence, the objective of the present study was to determine whether rats administered with all-trans retinoic acid (RA) could attenuate MG induced pathological effects...
January 14, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28088659/altered-cerebral-insulin-response-in-transgenic-mice-expressing-the-epsilon-4-allele-of-the-human-apolipoprotein-e-gene
#8
Marie-Thérèse Traversy, Milène Vandal, Cyntia Tremblay, Marine Tournissac, Ariane Giguère-Rancourt, A David Bennett, Frédéric Calon
Apolipoprotein E epsilon-4 (APOEε4 or APOE4), an allelic variation of the APOE gene, not only increases the risk of developing the late-onset form of Alzheimer's disease (AD), but also influences the outcome of treatment. Indeed, data from clinical studies show that the beneficial effect of insulin on cognition is blunted in APOE4 carriers. To investigate how APOE impacts insulin response, we assessed the effects of an acute insulin injection in APOE3- and APOE4-targeted replacement mice that respectively express the human APOE3 or APOE4 isoform instead of the endogenous murine ApoE protein...
November 30, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28088642/anti-rage-antibody-selectively-blocks-acute-systemic-inflammatory-responses-to-lps-in-serum-liver-csf-and-striatum
#9
Juciano Gasparotto, Camila Tiefensee Ribeiro, Rafael Calixto Bortolin, Henrique Schaan Fernandes, Alexsander Alves Teixeira, Marcelo Otavio Rodrigues Guasselli, Crepin Aziz Jose O Agani, Natália Cabral Souza, Mateus Grings, Guilhian Leipnitz, Henrique Mautone Gomes, Matheus Augusto de Bittencourt Pasquali, Peter R Dunkley, Phillip W Dickson, José Claudio Fonseca Moreira, Daniel Pens Gelain
Systemic inflammation induces transient or permanent dysfunction in the brain by exposing it to soluble inflammatory mediators. The receptor for advanced glycation endproducts (RAGE) binds to distinct ligands mediating and increasing inflammatory processes. In this study we used an LPS-induced systemic inflammation model in rats to investigate the effect of blocking RAGE in serum, liver, cerebrospinal fluid (CSF) and brain (striatum, prefrontal cortex, ventral tegmental area and substantia nigra). Intraperitoneal injection of RAGE antibody (50 μg/kg) was followed after 1h by a single LPS (5 mg/kg) intraperitoneal injection...
January 11, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28087385/berberine-exerts-renoprotective-effects-by-regulating-the-ages-rage-signaling-pathway-in-mesangial-cells-during-diabetic-nephropathy
#10
Yuan-Ye Qiu, Li-Qin Tang, Wei Wei
In this study, we explored the effect of berberine treatment on the AGEs-RAGE pathway in a rat model of diabetic nephropathy, and we investigated the mechanism by which key factors caused kidney injury and the effects of berberine. In vivo, berberine improved fasting blood glucose, body weight, the majority of biochemical and renal function parameters and histopathological changes in the diabetic kidney. Western blotting and immunohistochemistry revealed significant increases in the levels of AGEs, RAGE, P-PKC-β and TGF-β1 in injured kidneys, and these levels were markedly decreased by treatment with berberine...
January 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28081450/heparanase-driven-inflammation-from-the-ages-stimulated-macrophages-changes-the-functions-of-glomerular-endothelial-cells
#11
Guang Xu, Qiaojing Qin, Min Yang, Zhongdong Qiao, Yong Gu, Jianying Niu
AIMS: Amounts of macrophages were infiltrated in glomeruli in diabetic nephropathy. Heparanase has been thought to be closely related to proteinuria. Our aims were to determine the effect of heparanase on the inflammation in AGEs-stimulated macrophages and its role on the functions of glomerular endothelial cells (GEnCs). METHODS: The expression of inflammation cytokines in macrophages were assayed by q-RT PCR, western, and ELISA. Then western was used to measure the expression of RAGE and key proteins in NF-κB pathway in macrophages...
December 30, 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28078446/detection-of-rage-expression-and-its-application-to-diabetic-wound-age-estimation
#12
Xin-Yi Ji, Yang Chen, Guang-Hua Ye, Miao-Wu Dong, Ke-Zhi Lin, Jun-Ge Han, Xiang-Ping Feng, Xing-Biao Li, Lin-Sheng Yu, Yan-Yan Fan
With the prevalence of diabetes, it is becoming important to analyze the diabetic wound age in forensic practice. The present study investigated the time-dependent expression of receptor for advanced glycation end products (RAGE) during diabetic wound healing in mice and its applicability to wound age determination by immunohistochemistry, double immunofluorescence, and Western blotting. After an incision was created in genetically diabetic db/db mice and control mice, mice were killed at posttraumatic intervals ranging from 6 h to 14 days, followed by the sampling of wound margin...
January 11, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28078186/soluble-receptor-for-advanced-glycation-end-products-improves-stromal-cell-derived-factor-1-activity-in-model-diabetic-environments
#13
Melissa Przyborowski Olekson, Renea A Faulknor, Henry C Hsia, Ann Marie Schmidt, François Berthiaume
Objective: In diabetes, hyperglycemia causes the accumulation of advanced glycation end products (AGEs) that trigger reactive oxygen species (ROS) generation through binding the receptor for AGEs (RAGE). Because exogenous growth factors have had little success in enhancing chronic wound healing, we investigated whether hyperglycemia-induced AGEs interfere with cellular responses to extracellular signals. We used stromal cell-derived factor-1 (SDF-1), an angiogenic chemokine also known to promote stem cell recruitment in skin wounds...
December 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/28077795/prak-mediates-a%C3%AE-rage-driven-autophagy-pathway
#14
EDITORIAL
Yoonhee Kim, Inhee Mook-Jung
No abstract text is available yet for this article.
January 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28060905/human-s100a7-induces-mature-interleukin1%C3%AE-expression-by-rage-p38-mapk-calpain1-pathway-in-psoriasis
#15
Hu Lei, Xiangyun Li, Bo Jing, Hanzhang Xu, Yingli Wu
Psoriatic keratinocytes express exaggerated levels of inflammatory cytokines, and show aberrant hyperproliferation and terminal differentiation in the pathogenesis of psoriasis. The antimicrobial protein hS100A7 (psoriasin) has been found highly expressed in psoriatic skin, but the mechanism and physiological function remain largely unknown. We observed that hS100A7 induces mature interleukin 1α (17kDa) expression in normal human epidermal keratinocytes, which is dependent on RAGE-p38 MAPK and calpain-1 as the inhibitors or knockdown of them completely decreased the expression of mature interleukin1α...
2017: PloS One
https://www.readbyqxmd.com/read/28056871/lung-adenocarcinoma-expressing-receptor-for-advanced-glycation-end-products-with-primary-systemic-al-amyloidosis-a-case-report-and-literature-review
#16
Shouichi Okamoto, Shinsaku Togo, Ichiro Nagata, Kazue Shimizu, Yoshika Koinuma, Yukiko Namba, Jun Ito, Toshimasa Uekusa, Kazuhisa Takahashi
BACKGROUND: Receptor for advanced glycation end-products (RAGE), a receptor for amyloids, is constitutively expressed in lungs and generally observed to be downregulated in lung cancer tissues. However, increasing levels of RAGE or serum amyloids is associated with poor outcome in lung cancer patients. We report a rare case of primary systemic amyloid light-chain (AL) amyloidosis in biopsy-proven multiple organs with early-stage non-small cell lung cancer (NSCLC) that displayed strong staining for RAGE in the tumour tissue...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28052995/rage-mediated-suppression-of-il-10-results-in-enhanced-mortality-in-a-murine-model-of-acinetobacter-baumannii-sepsis
#17
Michael J Noto, Kyle W Becker, Kelli L Boyd, Ann Marie Schmidt, Eric P Skaar
The receptor for advanced glycation end products (RAGE) is a pattern recognition receptor capable of recognizing multiple pathogen-associated and danger-associated molecular patterns that contributes to the initiation and potentiation of inflammation in many disease processes. During infection, RAGE functions to either exacerbate disease severity or enhance pathogen clearance depending on the pathogen studied. Acinetobacter baumannii is an opportunistic human pathogen capable of causing severe infections, including pneumonia and sepsis, in impaired hosts...
January 4, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28046863/we-fg-206-01-magnetization-prepared-shells-trajectory-with-automated-gradient-waveform-design
#18
Y Shu, S Tao, J Trzasko, J Huston, P Weavers, M Bernstein
PURPOSE: The 3D non-Cartesian shells trajectory uses helical spirals to sample concentric spherical shells in k-space. The ordering of the shells sampling can be flexibly arranged to adapt to magnetization-prepared (MP) type of acquisition. The sampling of the shells around the center of k-space can be tuned to when the peak contrast between the white matter and gray matter is reached. The prototype of the sequence (MP-SHELLS) was previously implemented with a manually prescribed empirical gradient waveform...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045617/evaluation-of-functional-rage-gene-polymorphisms-in-childhood-acute-lymphoblastic-leukemia-a-case-control-study-from-iran
#19
Ebrahim Eskandari-Nasab, Mohammad Hashemi, Seyed-Shahab-Adin Hasani, Majid Naderi, Simin Sadeghi-Bojd, Mohsen Taheri
We examined the possible relationship between three RAGE polymorphisms, -429C/T, -374 T/A, and 63-bp deletion, and susceptibility to childhood acute lymphoblastic leukemia (ALL) in an Iranian population. This study included 75 ALL patients and 115 healthy subjects. Genotyping was performed using HEXA-ARMS-polymerase chain reaction. We found no significant association among RAGE gene polymorphisms and the risk for ALL at genotype, allelic and haplotype levels (P > 0.05). The hemoglobin levels were higher in patients with RAGE -374 TT than in the TA carriers (P = 0...
January 3, 2017: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/28045063/profile-of-upregulated-inflammatory-proteins-in-sera-of-myasthenia-gravis-patients
#20
Carl Johan Molin, Elisabet Westerberg, Anna Rostedt Punga
This study describes specific patterns of elevated inflammatory proteins in clinical subtypes of myasthenia gravis (MG) patients. MG is a chronic, autoimmune neuromuscular disease with antibodies most commonly targeting the acetylcholine receptors (AChRab), which causes fluctuating skeletal muscle fatigue. MG pathophysiology includes a strong component of inflammation, and a large proportion of patients with early onset MG additionally present thymus hyperplasia. Due to the fluctuating nature and heterogeneity of the disease, there is a great need for objective biomarkers as well as novel potential inflammatory targets...
January 3, 2017: Scientific Reports
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