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Advanced glycation end products

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https://www.readbyqxmd.com/read/28531804/protective-effect-and-mechanism-of-lycopene-on-endothelial-progenitor-cells-epcs-from-type-2-diabetes-mellitus-rats
#1
Yao-Chi Zeng, Li-Sheng Peng, Liyuan Zou, Shu-Fen Huang, Yi Xie, Gui-Ping Mu, Xue-Hui Zeng, Xi-Lin Zhou, Ya-Chi Zeng
Endothelial progenitor cells (EPCs), widely existing in bone marrow and peripheral blood, are involved in the repair of injured vascular endothelium and angiogenesis which are important to diabetic mellitus (DM) patients with vascular complications. The number and the function of EPCs are related to the advanced glycation end products (AGEs) generated in DM patients. Lycopene (Lyc) is an identified natural antioxidant that protects EPCs under the microenvironment of AGEs from damage. However, the underlying mechanism remains unclear...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28530076/-osteoporosis-and-diabetes-in-which-way-are-they-related
#2
REVIEW
Osnat Tell-Lebanon, Pnina Rotman-Pikielny
Diabetes and osteoporosis are common diseases with growing prevalence in the aging population. Many recent studies have reported an association between diabetes mellitus and an increased osteoporotic fracture rate. Compared to control subjects, decreased bone mineral density has been observed in patients with type 1 diabetes mellitus, while those with type 2 diabetes display a unique skeletal phenotype of increased bone mineral density, but impaired architectural structure and mineral properties. Accumulation of advanced glycation end products changes collagen structure and suppression of bone turnover causes impairment of repair and adaptation mechanisms...
November 2016: Harefuah
https://www.readbyqxmd.com/read/28529569/advanced-glycation-end-products-influence-oral-cancer-cell-survival-via-bcl-xl-and-nrf-2-regulation-in-vitro
#3
Shun-Yao Ko, Hshin-An Ko, Tzong-Ming Shieh, Tzong-Cherng Chi, Hong-I Chen, Yi-Ting Chen, Ya-Hui Yu, Shu-Han Yang, Shu-Shing Chang
An irreversible non-enzymatic reaction between carbohydrates and proteins results in the formation of advanced glycation end products (AGEs). AGEs have been demonstrated to be a risk factor of complications in patients with diabetes mellitus (DM). Previous studies have suggested that patients with DM exhibit a higher rate of metastasis of oral cancer and a lower cancer-associated survival rate. The receptor for AGEs (RAGE) has been associated with angiogenesis and an increase in cancer malignancy. Previous studies have suggested that AGE-RAGE regulates cell migration via extracellular signal-regulated kinase (ERK) phosphorylation...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529539/jiangtang-decoction-ameliorate-diabetic-nephropathy-through-the-regulation-of-pi3k-akt-mediated-nf-%C3%AE%C2%BAb-pathways-in-kk-ay-mice
#4
Jin-Ni Hong, Wei-Wei Li, Lin-Lin Wang, Hao Guo, Yong Jiang, Yun-Jia Gao, Peng-Fei Tu, Xue-Mei Wang
BACKGROUND: Jiangtang decoction (JTD) is a China patented drug which contains Euphorbia humifusa Willd, Salvia miltiorrhiza Bunge, Astragalus mongholicus Bunge, Anemarrhena asphodeloides Bunge, and Coptis chinensis Franch. For decades, it has also been used clinically to treat diabetic nephropathy (DN) effectively; however, the associated mechanisms remain unknown. Thus, the present study aimed to examine the protective efficacy of JTD in DN and elucidate the underlying molecular mechanisms...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28529157/protective-treatments-and-their-target-retinal-ganglion-cells-in-diabetic-retinopathy
#5
REVIEW
Jing Zhang, Rong Liu, Hong-Yu Kuang, Xin-Yuan Gao, Hao-Ling Liu
Diabetic retinopathy(DR)is one of the complications of diabetes which could cause severe vision loss. Retinal ganglion cell(RGC)injury has been confirmed prior to micro-vascular damage. Over the past few decades, a number of animal and clinical studies have confirmed that RGC impairment leads to an early deterioration of vision in DR. Inhibition of aldose reductase (AR), advanced glycation end product (AGE), oxidative stress, glutamate toxicity, and an inflammatory response may play important roles in protecting RGCs in DR...
May 18, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28527838/pulp-inflammation-diagnosis-from-clinical-to-inflammatory-mediators-a-systematic-review
#6
REVIEW
Marjorie Zanini, Elisabeth Meyer, Stéphane Simon
INTRODUCTION: Similar to other tissues, the dental pulp mounts an inflammatory reaction as a way to eliminate pathogens and stimulate repair. Pulp inflammation is prerequisite for dentin pulp complex repair and regeneration; otherwise, chronic disease or pulp necrosis occurs. Evaluation of pulp inflammation severity is necessary to predict the clinical success of maintaining pulp vitality. Clinical limitations to evaluating in situ inflammatory status are well-described. A molecular approach that aids clinical distinction between reversible and irreversible pulpitis could improve the success rate of vital pulp therapy...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28525804/recombinant-adeno-associated-virus-vector-carrying-the-thrombomodulin-lectin-like-domain-for-the-treatment-of-abdominal-aortic-aneurysm
#7
Chao-Han Lai, Kuan-Chieh Wang, Cheng-Hsiang Kuo, Fang-Tzu Lee, Tsung-Lin Cheng, Bi-Ing Chang, Yu-Jen Yang, Guey-Yueh Shi, Hua-Lin Wu
BACKGROUND AND AIMS: Thrombomodulin (TM), through its lectin-like domain (TMD1), sequesters proinflammatory high-mobility group box 1 (HMGB1) to prevent it from engaging the receptor for advanced glycation end product (RAGE) that sustains inflammation and tissue damage. Our previous study demonstrated that short-term treatment with recombinant TM containing all the extracellular domains (i.e., rTMD123) inhibits HMGB1-RAGE signaling and confers protection against CaCl2-induced AAA formation...
March 18, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28522560/the-effect-of-long-term-maternal-smoking-on-the-offspring-s-lung-health
#8
Suporn Sukjamnong, Yik Lung Chan, Razia Zakarya, Sonia Saad, Pawan Sharma, Rachana Santiyanont, Hui Chen, Brian G G Oliver
Maternal smoking during pregnancy contributes to long-term health problems in offspring, especially respiratory disorders which can manifest in either childhood or adulthood. Receptors for advanced glycation end-products (RAGE) are multi-ligand receptors abundantly localized in the lung, capable of responding to by-products of reactive oxygen species and pro-inflammatory responses. RAGE signalling is a key regulator of inflammation in cigarette smoking-related pulmonary diseases. However, the impact of maternal cigarette smoke exposure on lung RAGE signalling in the offspring is unclear...
May 18, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28521879/a-quick-simple-method-for-detecting-circulating-fluorescent-advanced-glycation-end-products-correlation-with-in-vitro-and-in-vivo-non-enzymatic-glycation
#9
Marika Villa, Mariacristina Parravano, Arianna Micheli, Lucia Gaddini, Andrea Matteucci, Cinzia Mallozzi, Francesco Facchiano, Fiorella Malchiodi-Albedi, Flavia Pricci
OBJECTIVE: Advanced glycation end-products (AGEs) constitute a highly heterogeneous family of compounds, relevant in the pathogenesis of diabetic complications, which could represent efficient biomarkers of disease progression and drug response. Unfortunately, due to their chemical heterogeneity, no method has been validated to faithfully monitor their levels in the course of the disease. In this study, we refine a procedure to quantitatively analyze fluorescent AGEs (fAGEs), a subset considered remarkably representative of the entire AGE family, and measure them in in vitro glycated BSA (gBSA) and in plasma and vitreous of diabetic rats, for testing its use to possibly quantify circulating AGEs in patients, as markers of metabolic control...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28521385/-ziziphus-oxyphylla-ethnobotanical-ethnopharmacological-and-phytochemical-review
#10
REVIEW
Rizwan Ahmad, Niyaz Ahmad, Atta Abbas Naqvi
ETHNOPHARMACOLOGICAL RELEVANCE: Ziziphus oxyphylla (ZO) is distributed mainly in tropic and warm temperate regions in the world. Pakistan owns six (06) indigenous species of genus Ziziphus out of which ZO is widely used for traditional treatment of different ailments such as diabetes, jaundice and liver diseases. AIM OF THE STUDY: The present review aims to provide in-depth and comprehensive literature overview, regarding botanical, chemical and biological characteristics of the plant alongwith phytochemical isolation and mechanistic studies to support its folklore and traditional uses...
May 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28520799/nonenzymatic-glycosylation-of-human-serum-albumin-and-its-effect-on-antibodies-profile-in-patients-with-diabetes-mellitus
#11
Alok Raghav, Jamal Ahmad, Khursheed Alam
BACKGROUND: Albumin glycation and subsequent formation of advanced glycation end products (AGEs) correlate with diabetes and associated complications. METHODS: Human Serum Albumin (HSA) was modified with D-glucose for a 40 day period under sterile conditions at 37°C. Modified samples along with native HSA (unmodified) were analyzed for structural modifications by UV and fluorescence, FTIR, Liquid chromatography mass spectrometry (LCMS) and X-ray crystallography...
2017: PloS One
https://www.readbyqxmd.com/read/28515391/advanced-glycation-end-products-regulate-interleukin-1%C3%AE-production-in-human-placenta
#12
Kotomi Seno, Saoko Sase, Ayae Ozeki, Hironori Takahashi, Akihide Ohkuchi, Hirotada Suzuki, Shigeki Matsubara, Hisataka Iwata, Takehito Kuwayama, Koumei Shirasuna
Maternal obesity is a major risk factor for pregnancy complications, causing inflammatory cytokine release in the placenta, including interleukin-1β (IL-1β), IL-6, and IL-8. Pregnant women with obesity develop accelerated systemic and placental inflammation with elevated circulating advanced glycation end products (AGEs). IL-1β is a pivotal inflammatory cytokine associated with obesity and pregnancy complications, and its production is regulated by NLR family pyrin domain-containing 3 (NLRP3) inflammasomes...
May 18, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/28515343/kidney-heart-and-brain-three-organs-targeted-by-ageing-and-glycation
#13
REVIEW
Marie Frimat, Maité Daroux, Rachel Litke, Rémi Nevière, Frédéric J Tessier, Eric Boulanger
Advanced glycation end-product (AGE) is the generic term for a heterogeneous group of derivatives arising from a non-enzymatic reaction between reducing sugars and proteins. In recent years, evidence has accumulated that incriminates AGEs in pathogenic processes associated with both chronic hyperglycaemia and age-related diseases. Regardless of their exogenous or endogenous origin, the accumulation of AGEs and their derivatives could promote accelerated ageing by leading to protein modifications and activating several inflammatory signalling pathways via AGE-specific receptors...
June 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28515150/receptor-for-advanced-glycation-end-products-is-targeted-by-fbxo10-for-ubiquitination-and-degradation
#14
John Evankovich, Travis Lear, Alison Mckelvey, Sarah Dunn, James Londino, Yuan Liu, Bill B Chen, Rama K Mallampalli
The receptor for advanced glycation end products (RAGE) is a highly expressed cell membrane receptor serving to anchor lung epithelia to matrix components, and it also amplifies inflammatory signaling during acute lung injury. However, mechanisms that regulate its protein concentrations in cells remain largely unknown. Here we show that RAGE exhibits an extended life span in lung epithelia (t½ 6 h), is monoubiquitinated at K374, and is degraded in lysosomes. The RAGE ligand ODN2006, a synthetic oligodeoxynucleotide resembling pathogenic hypomethylated CpG DNA, promotes rapid lysosomal RAGE degradation through activation of protein kinase C zeta (PKCζ), which phosphorylates RAGE...
May 17, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28507131/involvement-of-a-gut-retina-axis-in-protection-against-dietary-glycemia-induced-age-related-macular-degeneration
#15
Sheldon Rowan, Shuhong Jiang, Tal Korem, Jedrzej Szymanski, Min-Lee Chang, Jason Szelog, Christa Cassalman, Kalavathi Dasuri, Christina McGuire, Ryoji Nagai, Xue-Liang Du, Michael Brownlee, Naila Rabbani, Paul J Thornalley, James D Baleja, Amy A Deik, Kerry A Pierce, Justin M Scott, Clary B Clish, Donald E Smith, Adina Weinberger, Tali Avnit-Sagi, Maya Lotan-Pompan, Eran Segal, Allen Taylor
Age-related macular degeneration (AMD) is the major cause of blindness in developed nations. AMD is characterized by retinal pigmented epithelial (RPE) cell dysfunction and loss of photoreceptor cells. Epidemiologic studies indicate important contributions of dietary patterns to the risk for AMD, but the mechanisms relating diet to disease remain unclear. Here we investigate the effect on AMD of isocaloric diets that differ only in the type of dietary carbohydrate in a wild-type aged-mouse model. The consumption of a high-glycemia (HG) diet resulted in many AMD features (AMDf), including RPE hypopigmentation and atrophy, lipofuscin accumulation, and photoreceptor degeneration, whereas consumption of the lower-glycemia (LG) diet did not...
May 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28506898/chromane-isolated-from-leaves-of-dillenia-indica-improves-the-neuronal-dysfunction-in-stz-induced-diabetic-neuropathy
#16
Navpreet Kaur, Lalit Kishore, Randhir Singh
ETHNOPHARMACOLOGICAL RELEVANCE: According to the Indian traditional medicine, Dillenia indica L. has shown therapeutic efficacy in various diseases. Fruits and leaves of the plant possess anti-oxidant and anti-inflammatory properties. Reactive oxygen species, formation of advanced glycation end products (AGEs) and apoptosis are implicated in the pathogenesis of diabetic neuropathy. AIM OF THE STUDY: The aim of the present study was to explore the effect of D. indica and its isolate, chromane (CR), on thermal and mechanical hyperalgesia, allodynia, MNCV and oxidative-nitrosative stress in streptozotocin-induced experimental diabetes...
May 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28506137/elevation-of-serum-park7-and-il-8-levels-is-associated-with-acute-lung-injury-in-patients-with-severe-sepsis-septic-shock
#17
Xiao-Wei Liu, Tao Ma, Quan Cai, Li Wang, Hong-Wei Song, Zhi Liu
OBJECTIVE: Methods containing only clinical information fail to meet the needs of prediction of acute lung injury (ALI) because of the relatively low positive predictive value. This study aimed to investigate the feasibility of using biomarkers as predictors of ALI in populations with severe sepsis/septic shock and to explore difference among biomarkers after adjustment for potential confounders. METHODS: Serum specimens were collected from patients with severe sepsis/septic shock (n = 172) presented to the emergency department...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28505931/re-skin-autofluorescence-a-marker-for-advanced-glycation-end-products-and-erectile-dysfunction-in-diabetes
#18
Allen D Seftel
No abstract text is available yet for this article.
June 2017: Journal of Urology
https://www.readbyqxmd.com/read/28505121/molecular-pathways-involved-in-the-amelioration-of-myocardial-injury-in-diabetic-rats-by-kaempferol
#19
Kapil Suchal, Salma Malik, Sana Irfan Khan, Rajiv Kumar Malhotra, Sameer N Goyal, Jagriti Bhatia, Shreesh Ojha, Dharamvir Singh Arya
There is growing evidence that chronic hyperglycemia leads to the formation of advanced glycation end products (AGEs) which exerts its effect via interaction with the receptor for advanced glycation end products (RAGE). AGE-RAGE activation results in oxidative stress and inflammation. It is well known that this mechanism is involved in the pathogenesis of cardiovascular disease in diabetes. Kaempferol, a dietary flavonoid, is known to possess antioxidant, anti-apoptotic, and anti-inflammatory activities. However, little is known about the effect of kaempferol on myocardial ischemia-reperfusion (IR) injury in diabetic rats...
May 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28504654/sugar-makes-neutrophils-rage-linking-diabetes-associated-hyperglycemia-to-thrombocytosis-and-platelet-reactivity
#20
Robert H Lee, Wolfgang Bergmeier
Diabetes mellitus is associated with an increased risk for cardiovascular disease, but the link between hyperglycemia and atherothrombotic disease is not completely understood. Patients with diabetes often show hyporesponsiveness to antiplatelet therapies, and it has been suggested that hyperreactive reticulated platelets underlie this altered therapeutic response. In this issue of the JCI, Kraakman et al. uncover a previously unknown link between hyperglycemia and enhanced platelet production and reactivity...
May 15, 2017: Journal of Clinical Investigation
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