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Receptor for advanced glycation end products

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https://www.readbyqxmd.com/read/29151267/impaired-permeability-and-antimicrobial-barriers-in-type-2-diabetes-skin-are-linked-to-increased-serum-levels-of-advanced-glycation-end-product
#1
Jae-Hong Kim, Na Young Yoon, Dong Hye Kim, Minyoung Jung, Myungsoo Jun, Hwa-Young Park, Choon Hee Chung, Kyohoon Lee, Sunki Kim, Chang Seo Park, Kwang-Hyeon Liu, Eung Ho Choi
BACKGROUND: The incidence of type 2 diabetes mellitus (DM) has been increasing rapidly, and the disease has become a serious sociomedical problem. Many skin problems, such as xerosis, pruritus, skin infections, and delayed wound healing, that might be related to chronic impairment of skin barrier function decrease the quality of life in DM patients. However, the status of the permeability and antimicrobial barrier of the skin in DM remains unknown. OBJECTIVE: This study aimed to elucidate skin barrier impairment in type 2 DM patients and its patho-mechanisms using classic animal models of type 2 DM...
November 19, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/29149067/the-hmgb1-rage-pro-inflammatory-axis-in-the-human-placenta-modulating-effect-of-low-molecular-weight-heparin
#2
Cristian Zenerino, Anna Maria Nuzzo, Domenica Giuffrida, Marilisa Biolcati, Alessandra Zicari, Tullia Todros, Alessandro Rolfo
We evaluated whether physiological and pre-eclamptic (PE) placentae, characterized by exacerbated inflammation, presented alterations in pro-inflammatory High Mobility Group Box 1 (HMGB1) and its Receptor of Advanced Glycation End products (RAGE) expression. Moreover, we investigated, in physiological placental tissue, the ability of Low Molecular Weight Heparin (LMWH) to modify HMGB1 structural conformation thus inhibiting RAGE binding and HMGB1/RAGE axis inflammatory activity. HMGB1, RAGE, IL-6 and TNFα (HMGB1/RAGE targets) mRNA expression were assessed by Real Time PCR...
November 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29148590/effects-of-bergenin-on-methylglyoxal-induced-damage-in-osteoblastic-mc3t3-e1-cells
#3
Kyung Hee Lee, Eun Mi Choi
Bergenin is the main chemical constituent of plants in the genus Bergenia, which are used in traditional medicines. Methylglyoxal (MG), a highly reactive dicarbonyl compound, is the major precursor for forming advanced glycation end products (AGEs). Pretreating MC3T3-E1 cells with bergenin prevented MG-induced protein adduct formation. Bergenin inhibited the MG-induced soluble receptor for AGE (sRAGE), interleukin, reactive oxygen species and mitochondrial superoxide production. Additionally bergenin increased glyoxalase I activity, glutathione, heme oxygenase-1 and nuclear factor erythroid 2-related factor 2 levels in the presence of MG...
November 17, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29147074/increased-levels-of-srage-in-diabetic-ckd-g5d-patients-a-potential-protective-mechanism-against-age-related-upregulation-of-fibroblast-growth-factor-23-and-inflammation
#4
Elena Dozio, Valentina Corradi, Elena Vianello, Elisa Scalzotto, Massimo de Cal, Massimiliano Marco Corsi Romanelli, Claudio Ronco
Advanced glycation end products (AGEs) may induce cardiac remodeling in kidney disease by promoting fibroblast growth factor 23 (FGF-23) expression. Since AGEs are increased in diabetes mellitus (DM), our first aim was to evaluate the existence of any potential association between AGEs, FGF-23, inflammation, and increased cardiovascular risk in DM patients on dialysis (CKD-G5D). Secondarily, we explored the potential role of the soluble receptor for AGEs (sRAGE) as a marker of heart failure. Levels of glycated albumin (GA), sRAGE, c-terminal FGF-23 (cFGF-23), brain natriuretic peptide (BNP), and inflammatory mediators were compared between DM and non-DM CKD-G5D patients...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29127203/receptor-for-advanced-glycation-endproducts-mediates-sepsis-triggered-amyloid-%C3%AE-accumulation-tau-phosphorylation-and-cognitive-impairment
#5
Juciano Gasparotto, Carolina S Girardi, Nauana Somensi, Camila T Ribeiro, José C F Moreira, Monique Michels, Beatriz Sonai, Mariane Rocha, Amanda V Steckert, Tatiana Barichello, João Quevedo, Felipe Dal-Pizzol, Daniel P Gelain
Patients recovering from sepsis have higher rates of CNS morbidities associated with long-lasting impairment of cognitive functions, including neurodegenerative diseases. However, the molecular etiology of these sepsis-induced impairments is unclear. Here, we investigated the role of the receptor for advanced glycation end products (RAGE) in neuroinflammation, neurodegeneration-associated changes, and cognitive dysfunction arising after sepsis recovery. Adult Wistar rats underwent cecal ligation and perforation (CLP), and serum and brain (hippocampus and prefrontal cortex) samples were obtained at days 1, 15, and 30 after the CLP...
November 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29126910/impaired-oligodendrogenesis-and-myelination-by-elevated-s100b-levels-during-neurodevelopment
#6
Gisela Santos, Andreia Barateiro, Cláudio M Gomes, Dora Brites, Adelaide Fernandes
High levels of the inflammatory molecule S100B protein have been identified in sera from several perinatal inflammatory conditions involving myelin damage and associated with an adverse prognosis or the emergence of sequelea. S100B is essential for oligodendrocyte (OL) differentiation and maturation, but it remains to be established if excessive levels of released S100B upon early brain injury are deleterious in the neurodevelopmental period. Here, we investigated this possibility by evaluating how elevated S100B affects oligodendrogenesis during this period...
November 7, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29123976/advanced-glycation-end-products-reduce-the-calcium-transient-in-cardiomyocytes-by-increasing-production-of-reactive-oxygen-species-and-nitric-oxide
#7
Zeinab Hegab, Tamer M A Mohamed, Nicholas Stafford, Mamas Mamas, Elizabeth J Cartwright, Delvac Oceandy
Advanced glycation end products (AGE) are central to the development of cardiovascular complications associated with diabetes mellitus. AGE may alter cellular function through cross-linking of cellular proteins or by activating the AGE receptor (RAGE). However, the signalling molecules involved during AGE stimulation in cardiomyocytes remain unclear. Here, we investigated the effects of AGE treatment on intracellular calcium homeostasis of isolated cardiomyocytes and studied the activation of signalling molecules involved in this process...
November 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29117621/gender-differences-in-cardiometabolic-risk-factors-in-metabolically-healthy-normal-weight-adults-with-central-obesity
#8
Katarína Šebeková, Melinda Csongová, Radana Gurecká, Zora Krivošíková, Jozef Šebek
We investigated whether metabolically healthy normal weight adults with central obesity display worse cardiometabolic profile compared with their centrally lean counterparts. This retrospective, cross-sectional study, comprised 1 135 subjects (64% females) aged 18-to-81 years, presenting ≤2 components of metabolic syndrome. They were classified as centrally lean (waist-to-height ratio (WHtR)<0.5 and waist circumference<80 cm in females and<94 cm in males) or presenting central obesity (WHtR ≥0...
November 8, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29113952/do-all-roads-lead-to-the-rome-the-glycation-perspective
#9
REVIEW
Saheem Ahmad, Firoz Akhter, Uzma Shahab, Zeeshan Rafi, Mohd Sajid Khan, Rabia Nabi, Mohd Salman Khan, Khurshid Ahmad, Jalaluddin Mohammad Ashraf, Moinuddin
Oxidative, carbonyl, and glycative stress have gained substantial attention recently for their alleged influence on cancer progression. Oxidative stress can trigger variable transcription factors, such as nuclear factor erythroid-2-related factor (Nrf2), nuclear factor kappa B (NF-κB), protein-53 (p-53), activating protein-1 (AP-1), hypoxia-inducible factor-1α (HIF-1α), β-catenin/Wnt and peroxisome proliferator-activated receptor-γ (PPAR-γ). Activated transcription factors can lead to approximately 500 different alterations in gene expression, and can alter expression patterns of inflammatory cytokines, growth factors, regulatory cell cycle molecules, and anti-inflammatory molecules...
November 4, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29106804/targeting-rage-signaling-in-inflammatory-disease
#10
Barry I Hudson, Marc E Lippman
The receptor for advanced glycation end-products (RAGE) is a multiligand pattern recognition receptor implicated in diverse chronic inflammatory states. RAGE binds and mediates the cellular response to a range of damage-associated molecular pattern molecules (DAMPs) including AGEs, HMGB1, S100s, and DNA. RAGE can also act as an innate immune sensor of microbial pathogen-associated molecular pattern molecules (PAMPs) including bacterial endotoxin, respiratory viruses, and microbial DNA. RAGE is expressed at low levels under normal physiology, but it is highly upregulated under chronic inflammation because of the accumulation of various RAGE ligands...
November 6, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/29098833/-study-on-effect-of-jiangtang-decoction-on-ages-rage-and-oxidative-stress-in-kk-ay-mice
#11
Jin-Ni Hong, Wei-Wei Li, Hong Fu, Xue-Mei Wang
To elucidate the efficacy of Jiangtang decoction(JTD) on AGEs-RAGE and oxidative stress in type 2 diabetic model KK-Ay mice. Fifty KK-Ay mice were randomly divided into 5 groups as follows: model group, metformin group, low-dose, medium-dose and high-dose of JTD group, with 10 C57BL/6J as normal group. All groups are orally administrated with equal distilled water, 250 mg•kg⁻¹ metformin hydrochloride, 2, 4,8 g•kg⁻¹ JTD, equal distilled water respectively, once per day for 12 weeks. Alanine aminotransferase(ALT), creatinine(CREA), urea nitrogen(BUN),advanced glycation end products(AGEs) and receptor of glycation end products(RAGE) in blood or urine were measured during the experiments...
July 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29098526/elevated-plasma-level-of-soluble-form-of-rage-in-ischemic-stroke-patients-with-dementia
#12
Sung-Chun Tang, Kai-Chien Yang, Chaur-Jong Hu, Hung-Yi Chiou, Chau Chung Wu, Jiann-Shing Jeng
The receptor for advanced glycation end products (RAGE) and its downstream pathways are involved in various inflammatory and immune responses. Importantly, there is soluble RAGE (sRAGE) that forms either by alternative splicing of RAGE messenger ribonucleic acid as the endogenous soluble form of RAGE (esRAGE) or by proteolytic cleavage of full-length RAGE protein. This study aimed to investigate the associations of the plasma levels of sRAGE and esRAGE in ischemic stroke (IS) patients with and without dementia...
November 2, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/29089470/pitavastatin-attenuates-ages-induced-mitophagy-via-inhibition-of-ros-generation-in-the-mitochondria-of-cardiomyocytes
#13
Zhimin Zha, Junhong Wang, Shiling Li, Yan Guo
This study aimed to investigate whether pitavastatin protected against injury induced by advanced glycation end products products (AGEs) in neonatal rat cardiomyocytes, and to examine the underlying mechanisms. Cardiomyocytes of neonatal rats were incubated for 48 hours with AGEs (100mg/mL), receptor for advanced glycation end products (RAGE), antibody (1 mg/mL) and pitavastatin (600 ng/mL). The levels of p62 and beclin1 were determined by Western blotting. Mitochondrial membrane potential (DYm) and the generation of reactive oxygen species (ROS) were measured through the JC-1 and DCFH-DA...
November 1, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/29081010/accumulation-of-glycated-proteins-suggesting-premature-ageing-in-lamin-b-receptor-deficient-mice
#14
Frank Hause, Dietmar Schlote, Andreas Simm, Katrin Hoffmann, Alexander Navarrete Santos
Accumulation of advanced glycation end products (AGEs) is accompanied by increased free radical activity which contributes to ageing and the development or worsening of degenerative diseases. Apart from other physiological factors, AGEs are also an important biomarker for premature ageing. Here we report protein modifications (glycation) in a mouse model of lamin B receptor deficient ic (J) /ic (J) mice displaying skin defects similar to those of classical progeria. Therefore, we analysed AGE-modifications in protein extracts from various tissues of ic (J) /ic (J) mice...
October 28, 2017: Biogerontology
https://www.readbyqxmd.com/read/29080693/s100a12-in-renal-and-cardiovascular-diseases
#15
REVIEW
Alireza Nazari, Hossein Khorramdelazad, Gholamhossein Hassanshahi, Andrew S Day, Atlas Mashayekhi Sardoo, Elnaz Tahmooresi Fard, Mehdi Abedinzadeh, Ali Esmaeili Nadimi
Expression of S100A12, a small calcium-binding protein, by neutrophils and monocytes/macrophages induces proinflammatory responses via ligation with the receptor for advanced glycation end-products (RAGE) and subsequent activation of intracellular signal transduction pathways such as the nuclear factor (NF)-κB pathway. Although S100A12 has been demonstrated to be a useful biomarker during inflammatory conditions, its precise role in the pathogenesis of renal and cardiovascular diseases has not been fully understood...
October 30, 2017: Life Sciences
https://www.readbyqxmd.com/read/29079726/srage-alleviates-neutrophilic-asthma-by-blocking-hmgb1-rage-signalling-in-airway-dendritic-cells
#16
Fang Zhang, Xin Su, Gang Huang, Xiao-Feng Xin, E-Hong Cao, Yi Shi, Yong Song
Receptor for advanced glycation end products (RAGE) plays a role in inflammatory reactions. The soluble form of RAGE (sRAGE) acts as a decoy to inhibit interactions of RAGE with advanced glycation end products such as High mobility group box 1 (HMGB1). We have demonstrated that HMGB1 directs Th17 skewing by regulating dendritic cell (DC) functions in a previous study. However, the protective effects of HMGB1 blockade with sRAGE in the development of neutrophilic asthma remain unclear. Here, we showed that allergen challenge decreased expression of sRAGE in a murine model of neutrophilic asthma, correlating well with neutrophil counts and interleukin (IL)-17 production...
October 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29079306/ousting-rage-in-melanoma-a-viable-therapeutic-target
#17
REVIEW
Deeba N Syed, Ahmed Aljohani, Durdana Waseem, Hasan Mukhtar
Melanoma remains an important health concern, given the steady increase in incidence and acquisition of resistance to systemic therapies. The receptor for advanced glycation end products (RAGE) initially identified for its binding to advanced glycation end products was subsequently acknowledged as a pattern recognition receptor given its ability to recognize similar structural elements within numerous ligands. Recent studies have elucidated a plausible role of RAGE in melanoma progression through modulation of inflammatory, proliferative and invasive cellular responses...
October 24, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29075333/the-impact-of-type-2-diabetes-on-bone-metabolism
#18
REVIEW
Claudia Pinheiro Sanches, Andre Gustavo Daher Vianna, Fellype de Carvalho Barreto
Diabetes complications and osteoporotic fractures are two of the most important causes of morbidity and mortality in older patients and share many features including genetic susceptibility, molecular mechanisms, and environmental factors. Type 2 diabetes mellitus (T2DM) compromises bone microarchitecture by inducing abnormal bone cell function and matrix structure, with increased osteoblast apoptosis, diminished osteoblast differentiation, and enhanced osteoclast-mediated bone resorption. The linkage between these two chronic diseases creates a possibility that certain antidiabetic therapies may affect bone quality...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/29070458/-receptor-for-advanced-glycation-end-products-upregulates-muc5ac-expression-and-promotes-mucus-overproduction-in-mice-with-toluene-diisocyanate-induced-asthma
#19
Jing Xiong, Wen-Qu Zhao, Guo-Hua Huang, Li-Hong Yao, Hang-Ming Dong, Chang-Hui Yu, Hai-Jin Zhao, Shao-Xi Cai
OBJECTIVE: To explore the role of the receptor for advanced glycation end products (RAGE) in regulating the expression of MUC5AC and mucus production in a mouse model of toluene diisocyanate (TDI)?induced asthma. METHODS: BALB/c mice were randomly divided into control group, vehicle (AOO) group, TDI?induced asthma group and RAGE inhibitor (FPS?ZM1) group. PAS staining, Western blotting, and immunohistochemistry were used to analyze the changes in mucus production and MUC5AC expression in the airway of the mice, and the expression of p?ERK was detected with Western blotting...
October 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29068452/alleviation-of-oxidative-stress-mediated-nephropathy-by-dietary-fenugreek-trigonella-foenum-graecum-seeds-and-onion-allium-cepa-in-streptozotocin-induced-diabetic-rats
#20
Seetur R Pradeep, Krishnapura Srinivasan
Oxidative stress plays a major role in the progression of diabetes and the pathogenesis of diabetic nephropathy. In this study, the beneficial influence of dietary fenugreek (Trigonella foenum-graecum) seeds and onion (Allium cepa) on oxidative stress-mediated renal injury was evaluated in streptozotocin-induced diabetic rats. Diabetes was induced in adult Wistar rats by the administration of streptozotocin (i.p. 45 mg kg(-1)). Dietary interventions were made with 10% fenugreek seeds or 3% onion (freeze-dried) or their combination for 6 weeks...
October 25, 2017: Food & Function
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