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"Advanced Glycation End Products"

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https://www.readbyqxmd.com/read/30101695/the-possible-impact-of-hyperuricemia-on-serum-soluble-receptor-for-advanced-glycation-end-products-srage-levels-in-teenagers-a-case-control-study
#1
M Lemiesz, E Tenderenda-Banasiuk, D Sosnowska, A Rybi-Szuminska, J Storonowicz, T Lemiesz, A Wasilewska
Background Dietary advanced glycation end products (AGEs) and their interactions with the soluble receptors for AGEs (RAGE) play a crucial role in the pathogenesis of cardiovascular diseases. Objective This study was set out to assess, whether there was any association between serum sRAGE level and serum uric acid level in children with hyperuricemia Methods This case control study involved 53 patients (12 girls, 41 boys) with hyperuricemia (defined as serum uric acid >4.8 and >5.5 mg/dl in girls and boys, respectively) aged median of 13...
August 12, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/30101366/d-ribose-induces-nephropathy-through-rage-dependent-nf-%C3%AE%C2%BAb-inflammation
#2
Jinni Hong, Xuemei Wang, Ning Zhang, Hong Fu, Weiwei Li
Recently, aberrantly high levels of D-ribose have been discovered in type II diabetic patients. D-ribose glycates proteins more rapidly than D-glucose, resulting in the production of advanced glycation end products (AGEs). Accumulations of these products can be found in impaired renal function, but the mechanisms are poorly understood. The present study tested whether D-ribose induces renal dysfunction via the RAGE-dependent NF-κB signaling pathway. In vivo, administration of D-ribose was found to lower blood glucose and regulate insulin tolerance...
August 13, 2018: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/30101082/an-allied-approach-for-in-vitro-modulation-of-aldose-reductase-sorbitol-accumulation-and-advanced-glycation-end-products-by-flavonoid-rich-extract-of-coriandrum-sativum-l-seeds
#3
Anu Kajal, Randhir Singh
Traditional herbal medicines are attaining more popularity and are being widely practiced. Coriandrum sativum L. is one of the oldest herbal medicinal plants valued for its nutritional and medicinal properties. Present investigation was focussed on evaluation of attenuating potential of flavonoid rich extract of C. sativum (FCS) seeds against pathogenic markers of diabetic complications i.e . advanced glycation end products (AGEs), sorbitol and aldose reductase (ALR); by using in-vitro methods. Gas chromatography-mass spectrometry (GC-MS) and Infrared spectroscopy of FCS revealed the presence of different flavonoids...
2018: Toxicology Reports
https://www.readbyqxmd.com/read/30100451/trapping-of-glyoxal-by-propyl-octyl-and-dodecyl-gallates-and-their-mono-glyoxal-adducts
#4
Yu Hou, Zhengjun Xie, Hengqing Cui, Yongling Lu, Tiesong Zheng, Shengmin Sang, Lishuang Lv
Glyoxal (GO) is one of the major toxic intermediates generated during lipid oxidation and degradation. We investigated the inhibitory activities and mechanisms of propyl, octyl, and dodecyl gallates (PG, OG, and DG) on the formation of GO in buffer and during thermo-processing of corn oil, and the anti-carbonyl and antioxidative activities of the mono-GO adducts of PG, OG, and DG. Our results suggested that alkyl gallates could more effectively trap GO than gallic acid. The major mono-GO adducts of PG, OG, and DG were purified and their structures were elucidated based on their 1 H, 13 C, 2D-NMR, and HRMS data...
December 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/30099629/temporal-reliability-of-serum-soluble-and-endogenous-secretory-receptors-for-advanced-glycation-end-products-srage-and-esrage-in-healthy-women
#5
Fen Wu, Yelena Afanasyeva, Anne Zeleniuch-Jacquotte, Jinghua Zhang, Ann Marie Schmidt, Yu Chen
PURPOSE: The soluble receptor for advanced glycation end-products (sRAGE) and endogenous secretory RAGE (esRAGE) have been considered as biomarkers of several chronic diseases. However, the temporal reliability of their concentrations in the circulation is yet to be demonstrated. We evaluated whether a single measurement of serum sRAGE and esRAGE could serve as an estimate for usual serum levels in epidemiologic studies. METHODS: Serum sRAGE and esRAGE were measured using ELISAs in three yearly samples from 36 participants in the New York University Women's Health Study...
August 11, 2018: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/30098549/chronic-hyperglycemia-mediated-physiological-alteration-and-metabolic-distortion-leads-to-organ-dysfunction-infection-cancer-progression-and-other-pathophysiological-consequences-an-update-on-glucose-toxicity
#6
REVIEW
Biplab Giri, Sananda Dey, Tanaya Das, Mrinmoy Sarkar, Jhimli Banerjee, Sandeep Kumar Dash
Chronic exposure of glucose rich environment creates several physiological and pathophysiological changes. There are several pathways by which hyperglycemia exacerbate its toxic effect on cells, tissues and organ systems. Hyperglycemia can induce oxidative stress, upsurge polyol pathway, activate protein kinase C (PKC), enhance hexosamine biosynthetic pathway (HBP), promote the formation of advanced glycation end-products (AGEs) and finally alters gene expressions. Prolonged hyperglycemic condition leads to severe diabetic condition by damaging the pancreatic β-cell and inducing insulin resistance...
August 8, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/30098423/bone-disorders-associated-with-diabetes-mellitus-and-its-treatments
#7
Bernard Cortet, Stéphanie Lucas, Isabelle Legroux-Gerot, Guillaume Penel, Christophe Chauveau, Julien Paccou
Both type 1 and type 2 diabetes mellitus are associated with bone disorders, albeit via different mechanisms. Early studies in patients with type 1 diabetes suggested a 10-fold increase in the hip fracture risk compared to nondiabetic controls. Metaanalyses published more recently indicate a somewhat smaller risk increase, with odds ratios of 6 to 7. Diminished bone mineral density is among the contributors to the increased fracture risk. Both types of diabetes are associated with decreased bone strength related to low bone turnover...
August 8, 2018: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/30096827/chrysin-ameliorates-malfunction-of-retinoid-visual-cycle-through-blocking-activation-of-age-rage-er-stress-in-glucose-stimulated-retinal-pigment-epithelial-cells-and-diabetic-eyes
#8
Min-Kyung Kang, Eun-Jung Lee, Yun-Ho Kim, Dong Yeon Kim, Hyeongjoo Oh, Soo-Il Kim, Young-Hee Kang
Diabetes-associated visual cycle impairment has been implicated in diabetic retinopathy, and chronic hyperglycemia causes detrimental effects on visual function. Chrysin, a naturally occurring flavonoid found in various herbs, has anti-inflammatory, antioxidant, and neuroprotective properties. The goal of the current study was to identify the retinoprotective role of chrysin in maintaining robust retinoid visual cycle-related components. The in vitro study employed human retinal pigment epithelial (RPE) cells exposed to 33 mM of glucose or advanced glycation end products (AGEs) in the presence of 1⁻20 μM chrysin for three days...
August 8, 2018: Nutrients
https://www.readbyqxmd.com/read/30096408/sympathoadrenergic-suppression-improves-heart-function-by-upregulating-the-ratio-of-srage-rage-in-hypertension-with-metabolic-syndrome
#9
Simina-Ramona Selejan, Dominik Linz, Anna-Maria Tatu, Mathias Hohl, Thimoteus Speer, Sebastian Ewen, Felix Mahfoud, Ingrid Kindermann, Olesja Zamyatkin, Andrey Kazakov, Ulrich Laufs, Michael Böhm
Receptors-for-Advanced-Glycation-End-products (RAGE) activate pro-inflammatory programs mediated by carboxymethyllysine (CML) and high-mobility-group-box1 protein (HMGB1). The soluble isoform sRAGE neutralizes RAGE-ligands preventing cardiovascular complications in conditions associated with increased sympathetic activation like hypertension and diabetes. The effects of sympathetic modulation on RAGE/sRAGE-balance and end-organ damage in metabolic syndrome on top of hypertension remains unknown. We hypothesized that increased sympathoadrenergic activity might lead to an unfavourable RAGE/sRAGE regulation...
August 7, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/30091593/correction-to-novel-flavoalkaloids-from-white-tea-with-inhibitory-activity-against-the-formation-of-advanced-glycation-end-products
#10
Xiao Li, Guang-Jin Liu, Wei Zhang, Yv-Long Zhou, Tie-Jun Ling, Xiao-Chun Wan, Guan-Hu Bao
No abstract text is available yet for this article.
August 9, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/30091031/skewed-signaling-through-the-receptor-for-advanced-glycation-end-products-alters-the-proinflammatory-profile-of-tumor-associated-macrophages
#11
REVIEW
Armando Rojas, Paulina Araya, Jacqueline Romero, Fernando Delgado-López, Ileana Gonzalez, Carolina Añazco, Ramon Perez-Castro
Tumors are complex tissues composed of variable amounts of both non-cellular components (matrix proteins) and a multitude of stromal cell types, which are under an active cross-talk with tumor cells. Tumor-associated macrophages (TAMs) are the major leukocyte population among the tumor-infiltrating immune cells. Once they are infiltrated into tumor stroma they undergo a polarized activation, where the M1 and M2 phenotypes represent the two extreme of the polarization heterogeneity spectrum. It is known that TAMs acquire a specific phenotype (M2), oriented toward tumor growth, angiogenesis and immune-suppression...
August 8, 2018: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/30090653/pkc%C3%AE-activation-is-involved-in-ros-mediated-mitochondrial-dysfunction-and-apoptosis-in-cardiomyocytes-exposed-to-advanced-glycation-end-products-ages
#12
Yao-Chih Yang, Cheng-Yen Tsai, Chien-Lin Chen, Chia-Hua Kuo, Chien-Wen Hou, Shi-Yann Cheng, Ritu Aneja, Chih-Yang Huang, Wei-Wen Kuo
Diabetic patients exhibit serum AGE accumulation, which is associated with reactive oxygen species (ROS) production and diabetic cardiomyopathy. ROS-induced PKCδ activation is linked to mitochondrial dysfunction in human cells. However, the role of PKCδ in cardiac and mitochondrial dysfunction caused by AGE in diabetes is still unclear. AGE-BSA-treated cardiac cells showed dose- and time-dependent cell apoptosis, ROS generation, and selective PKCδ activation, which were reversed by NAC and rotenone. Similar tendency was also observed in diabetic and obese animal hearts...
August 2018: Aging and Disease
https://www.readbyqxmd.com/read/30089851/interferon-%C3%AE-mediates-the-protective-effects-of-soluble-receptor-for-advanced-glycation-end-product-in-myocardial-ischemia-reperfusion
#13
Mengqiu Dang, Xiangjun Zeng, Buxing Chen, Hongxia Wang, Huihua Li, Fenghe Du, Caixia Guo
The ubiquitin-proteasome system (UPS) is essential for protein degradation and plays critical roles in myocardial ischemia/reperfusion (MI/R) injuries. Previous studies have demonstrated that the soluble receptor for advanced glycation end-product (sRAGE) inhibited MI/R-induced apoptosis by upregulating proteasome subunits. However, the mechanism remains unknown. An MI/R model was established by left anterior descending (LAD) coronary artery ligation in mice. Recombinant sRAGE protein or saline was injected intramyocardially with or without neutralizing interferon-γ (IFN-γ) antibody injected intraperitoneally before ligation...
August 8, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/30089410/annals-express-carnosine-supplementation-does-not-affect-serum-levels-of-advanced-glycation-and-precursors-of-lipoxidation-end-products-in-autism-a-randomized-controlled-clinical-trial
#14
Ramin Ghodsi, Sorayya Kheirouri, Rahmat Nosrati
BACKGROUND: Abundant evidence indicates the increased levels of oxidative stress in patients with autism. Advanced glycation end products (AGEs) and advanced lipoxidation end products (ALEs) and their precursors play the major role in increased oxidative stress in numerous metabolic and neurologic diseases. Carnosine is a natural dipeptide with anti-glycation effects. The aim of this trial was to examine the effects of carnosine supplementation on the AGEs and the precursors of ALEs in patients with autism...
August 8, 2018: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/30088237/luteolin-ameliorates-cognitive-impairments-by-suppressing-the-expression-of-inflammatory-cytokines-and-enhancing-synapse-associated-proteins-gap-43-and-syn-levels-in-streptozotocin-induced-diabetic-rats
#15
Jing-Xue Gu, Xiao-Jing Cheng, Xuan Luo, Xia Yang, Yi-Peng Pang, Xiao-Fei Zhang, Yu-Yun Zhang, Yi Liu
Luteolin, a flavonoid isolated from Cirsium japonicum, has antioxidant, anti-inflammatory and neuroprotective activities. Our previous studies brought a prospect that luteolin benefited diabetic rats with cognitive impairments. In this study, we examined whether luteolin could suppress the inflammatory cytokines, thus increasing synapse-associated proteins in streptozotocin (STZ)-induced diabetes in rat models. The model rats underwent luteolin treatment for 8 consecutive weeks, followed by assessment of cognitive performances with MWM test...
August 7, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/30085099/targeting-rage-as-a-potential-therapeutic-approach-to-duchenne-muscular-dystrophy
#16
Roberta Sagheddu, Sara Chiappalupi, Laura Salvadori, Francesca Riuzzi, Rosario Donato, Guglielmo Sorci
Duchenne muscular dystrophy (DMD) is a lethal X-linked disease affecting striated muscles, which undergo progressive degeneration and chronic inflammation. RAGE (receptor for advanced glycation end-products), a multiligand receptor involved in myogenesis and inflammation, is absent in healthy adult muscles but is re-expressed in myoblasts, regenerating myofibers and activated immune cells upon acute muscle injury, and in certain myopathies. We show here that RAGE is expressed and chronically stimulated in muscles of mdx mice, an experimental model of DMD, which also release high amounts of the RAGE ligands, HMGB1 and S100B...
August 2, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/30083385/skin-autofluorescence-assessment-of-cardiovascular-risk-in-people-with-severe-mental-illness
#17
Daniëlle Emmerink, Sybiel Bakker, Thomas Van Bemmel, Eric O Noorthoorn, Paul Naarding
Background: People with severe mental illness (SMI) show significantly shorter life expectancy, mostly due to more prevalent cardiovascular disease. Although age is a prominent contributor to contemporary risk assessment and SMI usually affects younger people, these assessments still do not reveal the actual risk. By assessing advanced glycation end products (AGEs), cardiovascular risk can be assessed independent of age. Aims: To establish whether detection of AGEs with the AGE-reader will give a more accurate cardiovascular risk assessment in people with SMI...
July 2018: BJPsych Open
https://www.readbyqxmd.com/read/30078623/diabetes-related-cardiomyopathy-the-sweet-story-of-glucose-overload-from-epidemiology-to-cellular-pathways
#18
REVIEW
M Joubert, A Manrique, B Cariou, X Prieur
Type 2 diabetes (T2D) is a major risk factor for heart failure (HF). Although the number of cases of myocardial infarction in the T2D population has been reduced by 25% over the last 10 years, the incidence of HF is continuously increasing, making it the most worrying diabetes complication. This strongly reinforces the urgent need for innovative therapeutic interventions to prevent cardiac dysfunction in T2D patients. To this end, epidemiological, imaging and animal studies have aimed to highlight the mechanisms involved in the development of diabetic cardiomyopathy...
July 23, 2018: Diabetes & Metabolism
https://www.readbyqxmd.com/read/30077632/assessment-of-advanced-glycation-end-products-as-a-biomarker-of-diabetic-outcomes
#19
Olga Simó-Servat, Alejandra Planas, Andreea Ciudin, Rafael Simó, Cristina Hernández
There are substantial differences in the onset and severity of diabetes complications that are not fully explained by HbA1c levels and other risk factors. HbA1c is the gold standard for assessing metabolic control, but has limited value to identify patients at risk of developing diabetic complications. The main disadvantage of HbA1c is that it does not provide information about glycemic variability and does not reflect long-term exposure to hyperglycemia. One of the main pathogenetic mechanisms of diabetic complications is the generation and accumulation of advanced glycation end-products (AGEs)...
August 1, 2018: Endocrinología, Diabetes y Nutrición
https://www.readbyqxmd.com/read/30076903/cysteine-mediated-disulfide-bond-formation-in-rage-v-domain-facilitates-its-functionally-relevant-dimerization
#20
Nitish Jangde, Rashmi Ray, Sunita Sinha, Khokan Rana, Satyendra Kumar Singh, Prashant Khandagale, Narottam Acharya, Vivek Rai
Receptor for Advanced Glycation End product (RAGE) is a multiligand receptor implicated in diverse pathological conditions such as diabetes, atherosclerosis, cancer and neural diseases. Extracellular, RAGE consists of V, C1 and C2 domains. Here, we show RAGE exists as a monomer in equilibrium with a fraction of a covalently linked dimer of monomers via its V domain through cysteine. In order to understand the functional implication of this dimer, we examined the binding capacity and functional potential of RAGE dimer via advanced glycation end products (AGEs) which shows enhanced binding capacity towards V domain, ERK phosphorylation, cytokine release and actin polymerisation ability of the dimeric form for AGEs compared with the reduced monomeric form...
August 1, 2018: Biochimie
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