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https://www.readbyqxmd.com/read/28935867/s100a4-contributes-to-colitis-development-by-increasing-the-adherence-of-citrobacter-rodentium-in-intestinal-epithelial-cells
#1
Jinhua Zhang, Ying Jiao, Shasha Hou, Tian Tian, Qi Yuan, Huaijie Hao, Zhenlong Wu, Xuexiang Bao
S100A4 has been implicated in cancer and several inflammatory diseases, but its role in inflammatory bowel disease has not been well investigated. Here, upon infection with Citrobacter rodentium, a model for enteropathogenic Escherichia coli infection in humans, induced the infiltration of a large number of S100A4(+) cells into the colon in wild type (WT) mice. Deficiency of S100A4 reduced weight loss, bacterial colonization and colonic pathology. Furthermore, the expression of inflammatory cytokines and the recruitment of macrophages and neutrophils also decreased significantly in S100A4 knock out (S100A4 (-/-)) mice...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931523/contribution-of-myo-inositol-oxygenase-in-age-rage-mediated-renal-tubulo-interstitial-injury-in-the-context-of-diabetic-nephropathy
#2
Isha Sharma, Rashmi S Tupe, Aryana K Wallner, Yashpal S Kanwar
Advanced glycation end products (AGEs) play a role in pathogenesis of diabetic nephropathy (DN). Myo-inositol Oxygenase (MIOX) has been implicated in tubulo-interstitial injury in the context of DN. We investigated the effect of AGEs on MIOX expression and delineated mechanisms that lead to tubulo-interstitial injury. Status of MIOX, RAGE and relevant cellular signaling pathways activated following AGE:RAGE interaction were examined in tubular cells and kidneys of AGE-BSA treated mice. Solid phase assay revealed an enhanced binding of RAGE with AGE-BSA, -laminin and -collagen IV...
September 20, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28926869/purification-and-characterization-of-the-soluble-form-of-the-receptor-for-advanced-glycation-end-products-srage-a-novel-fast-economical-and-convenient-method
#3
Varun Kumar, Alba Sulaj, Thomas Fleming, Peter P Nawroth
The receptor for advanced glycation end-products (RAGE) is a multi-ligand receptor which belongs to the pattern recognition receptor family and can bind to various ligands such as advanced glycation end-products (AGEs), members of the S100 protein family, glycosaminoglycans, amyloid β peptides, high-mobility group box-1 (HMGB1) and nucleic acids through its extracellular domain. The RAGE-ligand interaction leads to the activation of MAP kinase and NF-kB signaling pathways. Further ligand-induced up-regulation of RAGE is involved in various patho-physiological situations including late diabetic complications, Alzheimer disease and several other neurodegenerative diseases...
September 19, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28926576/receptor-for-advanced-glycation-end-products-and-world-trade-center-particulate-induced-lung-function-loss-a-case-cohort-study-and-murine-model-of-acute-particulate-exposure
#4
Erin J Caraher, Sophia Kwon, Syed H Haider, George Crowley, Audrey Lee, Minah Ebrahim, Liqun Zhang, Lung-Chi Chen, Terry Gordon, Mengling Liu, David J Prezant, Ann Marie Schmidt, Anna Nolan
World Trade Center-particulate matter(WTC-PM) exposure and metabolic-risk are associated with WTC-Lung Injury(WTC-LI). The receptor for advanced glycation end-products (RAGE) is most highly expressed in the lung, mediates metabolic risk, and single-nucleotide polymorphisms at the AGER-locus predict forced expiratory volume(FEV). Our objectives were to test the hypotheses that RAGE is a biomarker of WTC-LI in the FDNY-cohort and that loss of RAGE in a murine model would protect against acute PM-induced lung disease...
2017: PloS One
https://www.readbyqxmd.com/read/28925920/low-radon-exposure-and-mortality-among-jouac-uranium-miners-an-update-of-the-french-cohort-1946-2007
#5
Estelle Rage, Sylvaine Caër-Lorho, Dominique Laurier
After the extension of the French cohort of uranium miners with the inclusion of workers employed in the Jouac mines, this article seeks to describe the new Jouac cohort and to estimate mortality risks, as well as to quantify their relation to radon exposure in this extended cohort. The Jouac cohort includes 458 miners hired by the Société des Mines de Jouac between 1957 and 2001. As there is no measurement of radon exposure before 1978 were unavailable, only the post-1977 Jouac cohort (n=314) has been included in the French cohort, creating an extended cohort of 5400 French uranium miners followed up from 1946 to 2007...
September 19, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28914097/advanced-glycation-end-products-interfere-in-luteinizing-hormone-and-follicle-stimulating-hormone-signaling-in-human-granulosa-kgn-cells
#6
Eleni A Kandaraki, Antonios Chatzigeorgiou, Efstathia Papageorgiou, Christina Piperi, Christos Adamopoulos, Athanasios G Papavassiliou, Michael Koutsilieris, Evanthia Diamanti-Kandarakis
Advanced glycation end products accumulate in the ovarian granulosa-cell layer of women with polycystic ovarian syndrome. Taken that the MAPK/ERK-pathway is a key regulator of oocyte maturation and function, consisting the main pathway used by the gonadotrophic hormones (luteinizing hormone, follicle stimulating hormone) to control ovulation, the present study aims to assess advanced glycation end products' interference into luteinizing hormone-and follicle stimulating hormone-signaling via the MAPK/ERK-pathway in the human granulosa KGN cell line...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28912521/advanced-glycation-end-product-age-albumin-from-activated-macrophage-is-critical-in-human-mesenchymal-stem-cells-survival-and-post-ischemic-reperfusion-injury
#7
Myeongjoo Son, Woong Chol Kang, Seyeon Oh, Delger Bayarsaikhan, Hyosang Ahn, Jaesuk Lee, Hyunjin Park, Sojung Lee, Junwon Choi, Hye Sun Lee, Phillip C Yang, Kyunghee Byun, Bonghee Lee
Post-ischemic reperfusion injury (PIRI) triggers an intense inflammatory response which is essential for repair but is also implicated in pathogenesis of post-ischemic remodeling in several organs in human. Stem cell therapy has recently emerged as a promising method for treatment of PIRI in human. However, satisfactory results have not been reported due to severe loss of injected stem cells in PIRI including critical limb ischemia (CLI). For investigating the advanced glycation end-product-albumin (AGE-albumin) from activated macrophages is critical in both muscle cell and stem cell death, we evaluated the recovery of PIRI-CLI by injection of human bone marrow derived mesenchymal stem cells (hBD-MSCs) with or without soluble receptor for AGEs (sRAGE)...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911546/polyphenols-with-antiglycation-activity-and-mechanisms-of-action-a-review-of-recent-findings
#8
REVIEW
Wan-Ju Yeh, Shih-Min Hsia, Wei-Hwa Lee, Chi-Hao Wu
Advanced glycation end products (AGEs) are substances composed of amino groups of proteins and reducing sugars. The initial and propagation phases of the glycation process are accompanied by the production of a large amount of free radicals, carbonyl species, and reactive dicarbonyl species, of which, methylglyoxal (MG) is the most reactive and can cause dicarbonyl stress, influencing normal physiological functions. In the advanced phase, the production of AGEs and the interaction between AGEs and their receptor, RAGE, are also considered to be among the causes of chronic diseases, oxidative stress, and inflammatory reaction...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28910744/advanced-glycation-end-products-induced-il-6-and-vegf-a-production-and-apoptosis-in-osteocyte-like-mlo-y4-cells-by-activating-rage-and-erk1-2-p38-and-stat3-signalling-pathways
#9
Helin Chen, Wenjia Liu, Xiangnan Wu, Min Gou, Jiefei Shen, Hang Wang
Advanced glycation end products (AGEs) are involved in osteopenia in people with diabetes and the elderly. Interleukin-6 (IL-6) and vascular endothelial growth factor-A (VEGF-A) are potent regulators of bone metabolism, and in bone tissue, osteocytes are an important source of these regulators. However, whether AGEs can directly regulate IL-6 and VEGF-A secretion by osteocytes is unknown. In this study, we evaluated the effect of AGEs on IL-6 and VEGF- A production as well as apoptosis in osteocyte-like MLO-Y4 cells...
September 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28906208/pattern-recognition-receptors-signaling-pathways-and-dysregulation-in-canine-chronic-enteropathies-brief-review
#10
Romy M Heilmann, Karin Allenspach
Pattern-recognition receptors (PRRs) are expressed by innate immune cells and recognize pathogen-associated molecular patterns (PAMPs) as well as endogenous damage-associated molecular pattern (DAMP) molecules. With a large potential for synergism or convergence between their signaling pathways, PRRs orchestrate a complex interplay of cellular mediators and transcription factors, and thus play a central role in homeostasis and host defense. Aberrant activation of PRR signaling, mutations of the receptors and/or their downstream signaling molecules, and/or DAMP/PAMP complex-mediated receptor signaling can potentially lead to chronic auto-inflammatory diseases or development of cancer...
September 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28901418/profilin%C3%A2-1-contributes-to-cardiac-injury-induced-by-advanced-glycation-end%C3%A2-products-in-rats
#11
Dafeng Yang, Weiwei Liu, Liping Ma, Ya Wang, Jing Ma, Minna Jiang, Xu Deng, Fang Huang, Tianlun Yang, Meifang Chen
Cardiac injury, including hypertrophy and fibrosis, induced by advanced glycation end products (AGEs) has an important function in the onset and development of diabetic cardiomyopathy. Profilin‑1, a ubiquitously expressed and multifunctional actin‑binding protein, has been reported to be an important mediator in cardiac hypertrophy and fibrosis. However, whether profilin‑1 is involved in AGE‑induced cardiac hypertrophy and fibrosis remains to be determined. Therefore, the present study aimed to investigate the function of profilin‑1 in cardiac injury induced by AGEs...
September 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900377/serum-soluble-receptor-of-advanced-glycation-end-products-and-risk-of-metabolic-syndrome-in-egyptian-obese-women
#12
Moushira Zaki, Sanaa Kamal, Shams Kholousi, Hala T El-Bassyouni, Walaa Yousef, Hanaa Reyad, Ramy Mohamed, Walaa A Basha
Obesity is one of the diagnostic criteria of metabolic syndrome (MS). It is correlated with insulin resistance (IR) and high vascular risk as well. Advanced glycation end products (AGEs) and their receptor (RAGE) play an important role in abnormal metabolic components in obese women. This study aimed to explore the serum levels of sRAGE in Egyptian obese women and compare with healthy non-obese controls and investigate the relationship between serum sRAGE, metabolic parameters, and obesity complications. The soluble form of receptor for advanced glycation end products (sRAGE), anthropometry, metabolic and biochemical biomarkers were measured in 100 obese women and 100 age-matched healthy control non-obese women...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28899493/protective-effects-of-paeoniflorin-against-aopp-induced-oxidative-injury-in-huvecs-by-blocking-the-ros-hif-1%C3%AE-vegf-pathway
#13
Shaolian Song, Xiaoyan Xiao, Dan Guo, Liqian Mo, Can Bu, Wenbin Ye, Quanwen Den, Shiting Liu, Xixiao Yang
BACKGROUND: Paeoniflorin, a monoterpene glycoside, exerts protective vascular effects, showing good antioxidant properties. However, whether Paeoniflorin has protective effect against the oxidative damage induced by advanced oxidation protein products (AOPPs) in Human umbilical vein endothelial cells (HUVECs) is unknown, as is the underlying mechanism. PURPOSE: The present study was designed to investigate the effect of Paeoniflorin on oxidative damage of HUVECs and elucidate its underlying molecular mechanisms...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28892789/thymoquinone-rich-fraction-nanoemulsion-tqrfne-decreases-a%C3%AE-40-and-a%C3%AE-42-levels-by-modulating-app-processing-up-regulating-ide-and-lrp1-and-down-regulating-bace1-and-rage-in-response-to-high-fat-cholesterol-diet-induced-rats
#14
Norsharina Ismail, Maznah Ismail, Nur Hanisah Azmi, Muhammad Firdaus Abu Bakar, Zhang Yida, Maizaton Atmadini Abdullah, Hamidon Basri
Though the causes of Alzheimer's disease (AD) are yet to be understood, much evidence has suggested that excessive amyloid-β (Aβ) accumulation due to abnormal amyloid-β precursor protein (APP) processing and Aβ metabolism are crucial processes towards AD pathogenesis. Hence, approaches aiming at APP processing and Aβ metabolism are currently being actively pursued for the management of AD. Studies suggest that high cholesterol and a high fat diet have harmful effects on cognitive function and may instigate the commencement of AD pathogenesis...
September 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28887039/activation-of-the-hmgb1-rage-axis-upregulates-th-expression-in-dopaminergic-neurons-via-jnk-phosphorylation
#15
Soo Jeong Kim, Min Jeong Ryu, Jeongsu Han, Yunseon Jang, Jungim Kim, Min Joung Lee, Ilhwan Ryu, Xianshu Ju, Eungseok Oh, Woosuk Chung, Gi Ryang Kweon, Jun Young Heo
The derangement of tyrosine hydroxylase (TH) activity reduces dopamine synthesis and is implicated in the pathogenesis of Parkinson's disease. However, the extracellular modulator and intracellular regulatory mechanisms of TH have yet to be identified. Recently, high-mobility group box 1 (HMGB1) was reported to be actively secreted from glial cells and is regarded as a mediator of dopaminergic neuronal loss. However, the mechanism for how HMGB1 affects TH expression, particularly through the receptor for advanced glycation endproducts (RAGE), has not yet been investigated...
September 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28885973/hemorrhagic-stroke-in-a-young-healthy-male-following-use-of-pre-workout-supplement-animal-rage-xl
#16
Brandon F Harris, Coty Winn, Thomas B Ableman
So-called "pre-workout" supplements are substances marketed as natural dietary supplements with claims of helping athletes achieve more focused and intense workouts. The use of such products remains popular among American youth as a whole, but is especially high among active duty service members. Supplements are minimally regulated by the Food and Drug Administration (FDA), and unlike pharmaceuticals, supplements are often brought to market without any testing to show neither efficacy nor safety. Several case reports have documented serious adverse events and raise the question of whether supplement use was a causative factor...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28882317/persistent-increase-in-microglial-rage-contributes-to-chronic-stress-induced-priming-of-depressive-like-behavior
#17
Tina C Franklin, Eric S Wohleb, Yi Zhang, Manoela Fogaça, Brendan Hare, Ronald S Duman
BACKGROUND: Chronic stress-induced inflammatory responses occur in part via danger-associated molecular pattern (DAMP) molecules, such as high mobility group box 1 protein (HMGB1), but the receptor(s) underlying DAMP signaling have not been identified. METHODS: Microglia morphology and DAMP signaling in enriched rat hippocampal microglia were examined during the development and expression of chronic unpredictable stress (CUS)-induced behavioral deficits, including long-term, persistent changes after CUS...
July 21, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28880217/the-ameliorative-effects-of-a-tocotrienol-rich-fraction-on-the-age-rage-axis-and-hypertension-in-high-fat-diet-fed-rats-with-metabolic-syndrome
#18
Hong Sheng Cheng, So Ha Ton, Joash Ban Lee Tan, Khalid Abdul Kadir
The clinical value of tocotrienols is increasingly appreciated because of the unique therapeutic effects that are not shared by tocopherols. However, their effect on metabolic syndrome is not well-established. This study aimed to investigate the effects of a tocotrienol-rich fraction (TRF) from palm oil in high-fat-diet-treated rats. Male, post-weaning Sprague Dawley rats were provided high-fat (60% kcal) diet for eight weeks followed by a TRF (60 mg/kg) treatment for another four weeks. Physical, metabolic, and histological changes were compared to those on control and high-fat diets respectively...
September 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28871412/rage-nf-%C3%AE%C2%BAb-ppar%C3%AE-signaling-is-involved-in-ages-induced-upregulation-of-amyloid-%C3%AE-influx-transport-in-an-in-vitro-bbb-model
#19
Fang Chen, Arijit Ghosh, Mei Hu, Yan Long, Hongbin Sun, Lingyi Kong, Hao Hong, Susu Tang
The receptor for advanced glycation end products (RAGE) at the blood-brain barrier (BBB) is critical for regulation of amyloid-β (Aβ) homeostasis in the diabetic brain. In this study, we used an in vitro BBB model consisting of mouse brain capillary endothelial cells (MBCECs) to investigate whether advanced glycation end products (AGEs) increase Aβ influx transport across the BBB and the underlying mechanisms. We found that AGEs induced Aβ influx transport across the BBB in concentration- and time-dependent manner, accompanied by increased RAGE expression and nuclear factor-kappa B p65 (NF-κB p65), and decreased nuclear peroxisome proliferator-activated receptor γ (PPARγ)...
September 4, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28871209/hmgb1-advanced-glycation-end-products-rage-does-not-aggravate-inflammation-but-promote-endogenous-neural-stem-cells-differentiation-in-spinal-cord-injury
#20
Hongyu Wang, Xifan Mei, Yang Cao, Chang Liu, Ziming Zhao, Zhanpeng Guo, Yunlong Bi, Zhaoliang Shen, Yajiang Yuan, Yue Guo, Cangwei Song, Liangjie Bai, Yansong Wang, Deshui Yu
Receptor for advanced glycation end products (RAGE) signaling is involved in a series of cell functions after spinal cord injury (SCI). Our study aimed to elucidate the effects of RAGE signaling on the neuronal recovery after SCI. In vivo, rats were subjected to SCI with or without anti-RAGE antibodies micro-injected into the lesion epicenter. We detected Nestin/RAGE, SOX-2/RAGE and Nestin/MAP-2 after SCI by Western blot or immunofluorescence (IF). We found that neural stem cells (NSCs) co-expressed with RAGE were significantly activated after SCI, while stem cell markers Nestin and SOX-2 were reduced by RAGE blockade...
September 4, 2017: Scientific Reports
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