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Advanced Glycation End Products: ParuchMD

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21 papers 0 to 25 followers The role of Advanced Glycation End Products in health and well-being. ParuchMD
By John Paruch Combined training in Internal Medicine-Psychiatry with holistic, evidence-based, preventive approach to implementation and promotion of wellness.
https://www.readbyqxmd.com/read/27816054/increased-age-rage-ratio-in-idiopathic-pulmonary-fibrosis
#1
Carlos Machahua, Ana Montes-Worboys, Roger Llatjos, Ignacio Escobar, Jordi Dorca, Maria Molina-Molina, Vanesa Vicens-Zygmunt
BACKGROUND: The abnormal epithelial-mesenchymal restorative capacity in idiopathic pulmonary fibrosis (IPF) has been recently associated with an accelerated aging process as a key point for the altered wound healing. The advanced glycation end-products (AGEs) are the consequence of non-enzymatic reactions between lipid and protein with several oxidants in the aging process. The receptor for AGEs (RAGEs) has been implicated in the lung fibrotic process and the alveolar homeostasis. However, this AGE-RAGE aging pathway has been under-explored in IPF...
November 5, 2016: Respiratory Research
https://www.readbyqxmd.com/read/12145247/role-of-hyperglycemia-in-nitrotyrosine-postprandial-generation
#2
Antonio Ceriello, Lisa Quagliaro, Barbara Catone, Roberta Pascon, Marta Piazzola, Bruno Bais, Giampiero Marra, Laura Tonutti, Claudio Taboga, Enrico Motz
OBJECTIVE: Recently, much attention has been paid to the possibility that postprandial hyperglycemia may be a cardiovascular risk factor in diabetes. Oxidative stress has been involved in the pathogenesis of diabetic complications, and increased plasma levels of nitrotyrosine, a product of peroxynitrite action, have been found in the plasma of diabetic subjects. The aim of the present study was to evaluate whether postprandial hyperglycemia is accompanied by nitrotyrosine generation and, if so, to explore a possible direct role of hyperglycemia in such a phenomenon...
August 2002: Diabetes Care
https://www.readbyqxmd.com/read/27470137/diurnal-glycemic-fluctuation-is-associated-with-severity-of-coronary-artery-disease-in-prediabetic-patients-possible-role-of-nitrotyrosine-and-glyceraldehyde-derived-advanced-glycation-end-products
#3
Makoto Watanabe, Yasuyuki Kawai, Michihiko Kitayama, Hironubu Akao, Atsushi Motoyama, Minoru Wakasa, Ryuhei Saito, Hirofumi Aoki, Kousuke Fujibayashi, Taketsugu Tsuchiya, Hiroaki Nakanishi, Kazuyuki Saito, Masayoshi Takeuchi, Kouji Kajinami
BACKGROUND: Glucose fluctuation (GF) is a risk factor for coronary artery disease (CAD). However, it remains unknown whether specific indices of GF are risk factors for CAD. Therefore, we evaluated the relationship between GF, as determined by a continuous glucose monitoring system (CGMS) or the glucose level at 2h after a 75-g oral glucose tolerance test (75g OGTT 120), and the severity of CAD in prediabetic patients. We also evaluated whether nitrotyrosine (NT) and glyceraldehyde-derived advanced glycation end-products (Glycer-AGE) were induced by GF...
July 25, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27259471/roles-of-o-glcnac-in-chronic-diseases-of-aging
#4
REVIEW
Partha S Banerjee, Olof Lagerlöf, Gerald W Hart
O-GlcNAcylation, a dynamic nutrient and stress sensitive post-translational modification, occurs on myriad proteins in the cell nucleus, cytoplasm and mitochondria. O-GlcNAcylation serves as a nutrient sensor to regulate signaling, transcription, translation, cell division, metabolism, and stress sensitivity in all cells. Aberrant protein O-GlcNAcylation plays a critical role both in the development, as well as in the progression of a variety of age related diseases. O-GlcNAcylation underlies the etiology of diabetes, and changes in specific protein O-GlcNAc levels and sites are responsible for insulin expression and sensitivity and glucose toxicity...
October 2016: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/26742057/greater-total-antioxidant-capacity-from-diet-and-supplements-is-associated-with-a-less-atherogenic-blood-profile-in-u-s-adults
#5
Kijoon Kim, Terrence M Vance, Ock K Chun
Evidence from epidemiologic studies has shown that total antioxidant capacity (TAC) in the diet might be inversely associated with stroke, heart failure, and inflammatory biomarkers. However, studies on the association of TAC from both diet and supplements with cardiovascular disease (CVD) risk factors in the U.S. population are lacking. This cross-sectional population-based study aimed to investigate the association of TAC with both diet and supplements with CVD risk factors among 4039 U.S. adults in National Health and Nutrition Examination Survey (NHANES) 2007-2012...
January 4, 2016: Nutrients
https://www.readbyqxmd.com/read/23153673/the-association-between-skin-collagen-glucosepane-and-past-progression-of-microvascular-and-neuropathic-complications-in-type-1-diabetes
#6
Vincent M Monnier, David R Sell, Christopher Strauch, Wanjie Sun, John M Lachin, Patricia A Cleary, Saul Genuth
PURPOSE: We determined the association between novel and acid-labile skin collagen-linked advanced glycation endproducts (AGEs) and the progression of microvascular and neuropathic complications from baseline to near study closeout in the Diabetes Control and Complications Trial (DCCT). METHODS: From a skin biopsy obtained near the close of the DCCT, proteolytic collagen digests were analyzed by liquid chromatography/mass spectrometry (LC/MS/MS) for glucosepane (GSPNE), glyoxal and methylglyoxal hydroimidazolones (G-H1 and MG-H1) and the glycation product fructose-lysine (FL) using isotope dilution method...
March 2013: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/19415980/characteristics-formation-and-pathophysiology-of-glucosepane-a-major-protein-cross-link
#7
REVIEW
Johan Svantesson Sjöberg, Sven Bulterijs
Advanced glycation end products are the results of a series of chemical reactions collectively known as the Maillard reaction, or nonenzymatic glycation, and sometimes cross-link proteins, thereby impairing their normal function. Glucosepane is the most abundant protein cross-link found in vivo so far and mainly has been shown to accumulate in the extracellular matrix, where it cross-links collagen. Levels of glucosepane increase with aging. By increasing collagen stiffness, glucosepane cross-links may have significant implications in several age-related diseases, such as cardiovascular disease, diabetes, and osteoporosis...
April 2009: Rejuvenation Research
https://www.readbyqxmd.com/read/26950480/intake-of-high-fructose-corn-syrup-sweetened-soft-drinks-fruit-drinks-and-apple-juice-is-associated-with-prevalent-arthritis-in-us-adults-aged-20-30-years
#8
L R DeChristopher, J Uribarri, K L Tucker
OBJECTIVE: There is a link between joint and gut inflammation of unknown etiology in arthritis. Existing research indicates that regular consumption of high-fructose corn syrup sweetened (HFCS) soft drinks, but not diet soft drinks, may be associated with increased risk of seropositive rheumatoid arthritis (RA) in women, independent of other dietary and lifestyle factors. One unexplored hypothesis for this association is that fructose malabsorption, due to regular consumption of excess free fructose (EFF) and HFCS, contributes to fructose reactivity in the gastrointestinal tract and intestinal in situ formation of enFruAGEs, which once absorbed, travel beyond the intestinal boundaries to other tissues and promote inflammation...
2016: Nutrition & Diabetes
https://www.readbyqxmd.com/read/26991258/soluble-receptor-and-gene-polymorphism-for-age-relationship-with-obesity-and-cardiovascular-risks
#9
Mohamed Rowisha, Manal El-Batch, Thanaa El Shikh, Salwa El Melegy, Hany Aly
BACKGROUND: Obesity in adolescents has quadrupled in the past 30 y. Markers for cardiovascular risks are needed in this population. We hypothesized that soluble receptor for advanced glycation end products (sRAGE) and asymmetric dimethyl arginine (ADMA) can correlate with carotid intima-media thickness (cIMT), a known index of subclinical atherosclerosis. We also aimed to evaluate the frequency of (Gly82Ser) RAGE gene polymorphism in obese adolescents. METHODS: Obese and nonobese adolescents were evaluated in a cross-sectional study for lipid profile, insulin resistance, ADMA, sRAGE, and RAGE gene (Gly 82 Ser) polymorphism...
July 2016: Pediatric Research
https://www.readbyqxmd.com/read/26690206/advanced-glycation-end-products-link-between-diet-and-ovulatory-dysfunction-in-pcos
#10
REVIEW
Deepika Garg, Zaher Merhi
PCOS is the most common cause of anovulation in reproductive-aged women with 70% experiencing ovulatory problems. Advanced glycation end products are highly reactive molecules that are formed by non-enzymatic reactions of sugars with proteins, nucleic acids and lipids. AGEs are also present in a variety of diet where substantial increase in AGEs can result due to thermal processing and modifications of food. Elevation in bodily AGEs, produced endogenously or absorbed exogenously from high-AGE diets, is further exaggerated in women with PCOS and is associated with ovulatory dysfunction...
December 2015: Nutrients
https://www.readbyqxmd.com/read/26699899/acute-effects-of-statin-on-reduction-of-angiopoietin-like-2-and-glyceraldehyde-derived-advanced-glycation-end-products-levels-in-patients-with-acute-myocardial-infarction-a-message-from-samit-statin-for-acute-myocardial-infarction-trial
#11
Mitsuhiro Shimomura, Jun-Ichi Oyama, Masayoshi Takeuchi, Yoshisato Shibata, Yusuke Yamamoto, Tomohiro Kawasaki, Hiroshi Komoda, Kazuhisa Kodama, Masashi Sakuma, Shigeru Toyoda, Yohei Inoue, Daigo Mine, Masahiro Natsuaki, Aiko Komatsu, Yutaka Hikichi, Sho-Ichi Yamagishi, Teruo Inoue, Koichi Node
Experimental ischemia-reperfusion models have shown that 3-hydroxy-3methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors, statins, have cardioprotective effects. SAMIT (Statin Acute Myocardial Infarction Trial) is a multicenter prospective open randomized trial, designed to evaluate the effects of statin treatment from the earliest stage on cardioprotection in patients with acute myocardial infarction (AMI). Patients were randomly assigned to receive atorvastatin (initial dose of 40 mg at admission followed by the maintenance dose of 10 mg/day for 30 days) or not (control), and then immediately underwent percutaneous coronary intervention (PCI) for the culprit lesion...
October 2016: Heart and Vessels
https://www.readbyqxmd.com/read/14568006/use-of-aminoguanidine-pimagedine-to-prevent-the-formation-of-advanced-glycation-endproducts
#12
REVIEW
Paul J Thornalley
Aminoguanidine (AG) is a prototype therapeutic agent for the prevention of formation of advanced glycation endproducts. It reacts rapidly with alpha,beta-dicarbonyl compounds such as methylglyoxal, glyoxal, and 3-deoxyglucosone to prevent the formation of advanced glycation endproducts (AGEs). The adducts formed are substituted 3-amino-1,2,4-triazine derivatives. Inhibition of disease mechanisms, particularly vascular complications in experimental diabetes, by AG has provided evidence that accumulation of AGEs is a risk factor for disease progression...
November 1, 2003: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/17699361/advanced-glycation-end-products-and-nephrotoxicity-of-high-protein-diets
#13
REVIEW
Jaime Uribarri, Katherine R Tuttle
The popularity of high-protein diets has surged recently as obesity has become more and more common in the United States and other developed nations. In view of the high prevalence of type 2 diabetes and chronic kidney disease among obese people, it is important to understand potential effects of high-protein diets on the kidney. The hypothesis that high-protein diets are nephrotoxic because of their excessive dietary advanced glycation end product (AGE) content and an increased amino acid load that enhances AGE formation in situ was explored...
November 2006: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/26664786/polymorphisms-in-three-genes-are-associated-with-hemorrhagic-stroke
#14
Wenpeng Liu, Shichao Ge, Yan Liu, Can Wei, Yunlong Ding, Aimin Chen, Qiyao Wu, Yuqing Zhang
BACKGROUND: Multiligand receptor for advanced glycation end products (RAGE), osteoprotegerin, and Golgb1 genes may be implicated in atherosclerosis and vascular diseases. Single nucleotide polymorphisms (SNPs) rs1035798 in RAGE gene, rs2073617 and rs2073618 in TNFRSF11B, and rs3732410 in Golgb1 will be investigated on whether there is an association with hemorrhagic stroke (HS) in Chinese population. METHODS: A total of 600 subjects including 199 HS patients and 401 controls were assayed...
November 2015: Brain and Behavior
https://www.readbyqxmd.com/read/23787467/glucosepane-a-poorly-understood-advanced-glycation-end-product-of-growing-importance-for-diabetes-and-its-complications
#15
REVIEW
Vincent M Monnier, Wanjie Sun, David R Sell, Xingjun Fan, Ina Nemet, Saul Genuth
Advanced glycation end products (AGEs) represent a family of protein, peptide, amino acid, nucleic acid and lipid adducts formed by the reaction of carbonyl compounds derived directly or indirectly from glucose, ascorbic acid and other metabolites such as methylglyoxal. AGE formation in diabetes is of growing importance for their role as markers and potential culprits of diabetic complications, in particular retinopathy, nephropathy and neuropathy. Development of sensitive and specific assays utilizing liquid chromatography mass spectrometry with isotope dilution method has made it possible to detect and quantitate non-UV active AGEs such as carboxymethyl-lysine and glucosepane, the most prevalent AGE and protein crosslink of the extracellular matrix...
January 1, 2014: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/20497781/advanced-glycation-end-products-in-foods-and-a-practical-guide-to-their-reduction-in-the-diet
#16
Jaime Uribarri, Sandra Woodruff, Susan Goodman, Weijing Cai, Xue Chen, Renata Pyzik, Angie Yong, Gary E Striker, Helen Vlassara
Modern diets are largely heat-processed and as a result contain high levels of advanced glycation end products (AGEs). Dietary advanced glycation end products (dAGEs) are known to contribute to increased oxidant stress and inflammation, which are linked to the recent epidemics of diabetes and cardiovascular disease. This report significantly expands the available dAGE database, validates the dAGE testing methodology, compares cooking procedures and inhibitory agents on new dAGE formation, and introduces practical approaches for reducing dAGE consumption in daily life...
June 2010: Journal of the American Dietetic Association
https://www.readbyqxmd.com/read/26626334/measurement-of-urinary-advanced-glycation-end-products-ages-using-a-fluorescence-assay-for-metabolic-syndrome-related-screening-tests
#17
Akira Suehiro, Kagehiro Uchida, Mamoru Nakanishi, Ichiro Wakabayashi
AIMS: The simple screening test of advanced glycation end-products (AGEs) has not been established yet. We aimed to clarify the usefulness of simple measurement of AGEs for screening tests. METHODS: The subjects were healthy participants and patients with metabolic syndrome. Urine samples were diluted from 1:10 to 1:200 using phosphate-buffered saline, and the fluorescence intensity was measured at 440nm after excitation at 370nm in a 96-well microplate spectrophotometer...
January 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/25527756/dietary-consumption-of-advanced-glycation-end-products-and-pancreatic-cancer-in-the-prospective-nih-aarp-diet-and-health-study
#18
Li Jiao, Rachael Stolzenberg-Solomon, Thea Palmer Zimmerman, Zhigang Duan, Liang Chen, Lisa Kahle, Adam Risch, Amy F Subar, Amanda J Cross, Albert Hollenbeck, Helen Vlassara, Gary Striker, Rashmi Sinha
BACKGROUND: Advanced glycation end products (AGEs) are a heterogeneous group of compounds present in uncooked foods as well as in foods cooked at high temperatures. AGEs have been associated with insulin resistance, oxidative stress, and chronic inflammation in patients with diabetes. Dietary AGEs are an important contributor to the AGE pool in the body. N(ϵ)-(carboxymethyl)lysine (CML) AGE is one of the major biologically and chemically well-characterized AGE markers. The consumption of red meat, which is CML-AGE rich, has been positively associated with pancreatic cancer in men...
January 2015: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/23959566/consumption-of-a-diet-low-in-advanced-glycation-end-products-for-4-weeks-improves-insulin-sensitivity-in-overweight-women
#19
RANDOMIZED CONTROLLED TRIAL
Alicja Budek Mark, Malene Wibe Poulsen, Stine Andersen, Jeanette Marker Andersen, Monika Judyta Bak, Christian Ritz, Jens Juul Holst, John Nielsen, Barbora de Courten, Lars Ove Dragsted, Susanne Gjedsted Bügel
OBJECTIVE High-heat cooking of food induces the formation of advanced glycation end products (AGEs), which are thought to impair glucose metabolism in type 2 diabetic patients. High intake of fructose might additionally affect endogenous formation of AGEs. This parallel intervention study investigated whether the addition of fructose or cooking methods influencing the AGE content of food affect insulin sensitivity in overweight individuals. RESEARCH DESIGN AND METHODS Seventy-four overweight women were randomized to follow either a high- or low-AGE diet for 4 weeks, together with consumption of either fructose or glucose drinks...
2014: Diabetes Care
https://www.readbyqxmd.com/read/26253728/relationship-between-levels-of-advanced-glycation-end-products-and-their-soluble-receptor-and-adverse-outcomes-in-adults-with-type-2-diabetes
#20
RANDOMIZED CONTROLLED TRIAL
Merlin C Thomas, Mark Woodward, Bruce Neal, Qiang Li, Raelene Pickering, Michel Marre, Bryan Williams, Vlado Perkovic, Mark E Cooper, Sophia Zoungas, John Chalmers, Graham S Hillis
OBJECTIVE: This study explored whether activation of the receptor for advanced glycation end products (RAGE) is implicated in the development of diabetes complications. RESEARCH DESIGN AND METHODS: A case-cohort study was performed in 3,763 participants with prevalent diabetes in the Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation (ADVANCE) trial. The hazard ratios (HRs) for death, major cardiovascular events, and new or worsening nephropathy were derived using Cox regression models, and the ability of sRAGE and AGE levels to reclassify the risk of nephropathy was assessed...
October 2015: Diabetes Care
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