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Glycated albumin

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https://www.readbyqxmd.com/read/28543688/glycated-human-albumin-alters-mitochondrial-respiration-in-preadipocyte-3t3-l1-cells
#1
Pascal Baret, Fanny Le Sage, Cynthia Planesse, Olivier Meilhac, Anne Devin, Emmanuel Bourdon, Philippe Rondeau
Diabetes and obesity are strongly associated with increased levels of circulating advanced glycation end products (AGEs) and reactive oxygen species (ROS). These two molecular phenomena affect the physiology of adipose tissue, a biological driver of the metabolic syndrome, leading to an inflammatory profile and insulin resistance, which could contribute to obesity/diabetes-associated complications, such as cardiovascular diseases. Herein, we investigated the impact of AGEs on mitochondrial bioenergetics in murine preadipocyte cells (3T3-L1) and cellular redox homeostasis...
May 22, 2017: BioFactors
https://www.readbyqxmd.com/read/28542419/in-vivo-oxidized-albumin-a-pro-inflammatory-agent-in-hypoalbuminemia
#2
Faiga Magzal, Shifra Sela, Andrea Szuchman-Sapir, Snait Tamir, Regina Michelis, Batya Kristal
Hypoalbuminemia of Hemodialysis (HD) patients is an independent cardiovascular risk factor, however, there is no mechanistic explanation between hypoalbuminemia and vascular injury. In the event of oxidative stress and inflammation to which HD patients are exposed, albumin is oxidized and undetected by common laboratory methods, rendering an apparent hypoalbuminemia. We wanted to show that these circulating modified oxidized albumin molecules cause direct vascular damage, mediating inflammation. Once these in-vivo albumin modifications were reduced in- vitro, the apparent hypoalbuminemia concomitantly with its inflammatory effects, were eliminated...
2017: PloS One
https://www.readbyqxmd.com/read/28538363/the-effect-of-alpha-linolenic-acid-on-glycemic-control-in-individuals-with-type-2-diabetes-a-systematic-review-and-meta-analysis-of-randomized-controlled-clinical-trials
#3
Elena Jovanovski, Dandan Li, Hoang Vi Thanh Ho, Vladimir Djedovic, Any de Castro Ruiz Marques, Esra Shishtar, Sonia Blanco Mejia, John L Sievenpiper, Russell J de Souza, Lea Duvnjak, Vladimir Vuksan
BACKGROUND: Polyunsaturated fats (PUFAs) have been shown to reduce type 2 diabetes (T2DM) risk and improve insulin responsiveness in T2DM subjects, but whether the plant sources of omega-3 PUFA (alpha-linolenic acid [ALA]) have an effect on glycemic control requires further investigation. METHODS: The parameters of interest were glycated hemoglobin (HbA1c), fasting blood glucose (FBG), fasting blood insulin (FBI), homeostatic model assessment for insulin resistance (HOMA-IR), fructosamine, and glycated albumin...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28535187/serum-levels-of-1-5-anhydroglucitol-and-risk-of-incident-end-stage-renal-disease
#4
Casey M Rebholz, Morgan E Grams, Yuan Chen, Alden L Gross, Yingying Sang, Josef Coresh, Elizabeth Selvin
Glycemic excursions, independent of average glucose, have been implicated in the development of diabetic implications. It is unknown if low 1,5-anyhydroglucitol (1,5-AG) are associated with advanced stages of kidney disease independent of kidney function and glycemia. In the Atherosclerosis Risk in Communities Study (N = 13,277), we used structural equation modeling to estimate the association between serum 1,5-AG levels and end-stage renal disease from baseline (1990-1992) through 2013 with adjustment for demographics, risk factors, a latent variable for glycemia (diabetes status, fasting glucose, hemoglobin A1c, fructosamine, glycated albumin), and a latent variable for kidney function (creatinine, cystatin C, β2-microglobulin)...
May 23, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28532193/glycated-albumin-level-during-late-pregnancy-as-a-predictive-factor-for-neonatal-outcomes-of-women-with-diabetes
#5
Daisuke Sugawara, Atsuko Kawano, Kohei Nagai, Hiroaki Sato, Ko Ichihashi
PURPOSE: To investigate the association between glycated albumin (GA) in diabetic mothers and complications in their children, and determine GA cut-off values for predicting complications in infants. MATERIALS AND METHODS: This hospital-based case-control study involved 71 Japanese diabetic mothers and their children. Mean GA values were compared between mothers of infants with and without complications, and relationship with number of complications was analyzed by Pearson's correlation...
May 22, 2017: Journal of Maternal-fetal & Neonatal Medicine
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
#6
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/28529085/variations-in-native-protein-glycation-and-plasma-antioxidants-in-several-birds-of-prey
#7
Tana Ingram, Jessica Zuck, Chad R Borges, Patrick Redig, Karen L Sweazea
Birds are an anomaly among vertebrates as they are remarkably long-lived despite having naturally high blood glucose and metabolic rates. For mammals, hyperglycemia leads to oxidative stress and protein glycation. In contrast, many studies have shown that domestic and wild birds are relatively resistant to these glucose-mediated pathologies. Surprisingly very little research has examined protein glycation in birds of prey, which by nature consume a diet high in protein and fat that promotes gluconeogenesis...
May 18, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28526195/alteration-of-human-serum-albumin-binding-properties-induced-by-modifications-a-review
#8
Małgorzata Maciążek-Jurczyk, Agnieszka Szkudlarek, Mariola Chudzik, Jadwiga Pożycka, Anna Sułkowska
Albumin, a major transporting protein in the blood, is the main target of modification that affects the binding of drugs to Sudlow's site I and II. These modification of serum protein moderates its physiological function, and works as a biomarker of some diseases. The main goal of the paper was to explain the possible alteration of human serum albumin binding properties induced by modifications such as glycation, oxidation and ageing, their origin, methods of evaluation and positive and negative meaning described by significant researchers...
May 10, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28520799/nonenzymatic-glycosylation-of-human-serum-albumin-and-its-effect-on-antibodies-profile-in-patients-with-diabetes-mellitus
#9
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/28513427/population-pharmacokinetics-of-lyophilized-recombinant-glucagon-like-peptide-1-receptor-agonist-recombinant-exendin-4-re-4-in-chinese-patients-with-type-2-diabetes-mellitus%C3%A2
#10
Yan-Nan Zang, Min-Jie Zhang, Yi-Tong Wang, Chen Wang, Qian Wang, Qing-Shan Zheng, Li-Nong Ji, Wei Guo, Yi Fang
OBJECTIVE: To investigate the population pharmacokinetics of lyophilized recombinant glucagon-like peptide-1 receptor agonist (rE-4) in Chinese patients with type 2 diabetes mellitus (T2DM) for plasma concentration estimation and individualized treatment. METHODS: Twelve patients with T2DM were enrolled to receive subcutaneous injections of rE-4 at 5 µg twice daily for 84 days. Administration dosage was adjusted from 5 µg to 10 µg twice daily at day 29 in case of glycated albumin (GA) ≥ 17%...
May 17, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28504612/changes-in-the-albumin-glycation-site-plasma-pentosidine-and-esrage-concentrations-before-and-after-intensive-diabetic-treatment-in-patients-with-abnormally-high-glycated-albumin-levels
#11
Hiroyasu Miyamoto, Takuji Kohzuma, Akihiro Ohnishi
Background We have reported that the blood glucose normalization treatment reduced the albumin glycation sites and the intensity of albumin AGE fluorescence in patients with abnormally high glycated albumin levels. To clarify the relationship between glycaemic control status and levels of glycated proteins and related markers, we studied the change of the markers of the DM patients with and without fatty liver, liver cirrhosis and dialysis before and after the intensive diabetic treatment. Methods Eight diabetic patients with abnormally high glycated albumin levels (no complications: 2, fatty liver: 3, liver cirrhosis: 2, dialysis: 1) were recruited...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28499644/simple-and-rapid-lc-ms-method-for-the-determination-of-circulating-albumin-microheterogeneity-in-veal-calves-exposed-to-heat-stress
#12
Maurizio Baldassarre, Marina Naldi, Marco Domenicali, Sabrina Volo, Marco Pietra, Francesco Dondi, Paolo Caraceni, Angelo Peli
Heat stress has a major impact on veal calves welfare and productivity. Prolonged exposure to warm temperature is associated with several alterations of physiologic processes and increased systemic inflammation and oxidative stress. Bovine serum albumin (BSA) is the most abundant plasma protein and, besides the regulation of osmotic pressure, carries several additional functions, including antioxidant, immunomodulatory, binding and transport activities. Such non-oncotic properties are closely related to structural integrity of the circulating molecule and may be compromised in stressful microenvironments as it occurs in heat stressed animals...
April 25, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28495931/neutrophil-extracellular-traps-drive-endothelial-to-mesenchymal-transition
#13
Elmar Pieterse, Nils Rother, Marjolein Garsen, Julia Hofstra, Simon Satchell, Markus Hoffmann, Markus Loeven, Hanneke Knaapen, Olivier van der Heijden, Jo Berden, Luuk Hilbrands, Johan van der Vlag
OBJECTIVE: An excessive release and impaired degradation of neutrophil extracellular traps (NETs) leads to the continuous exposure of NETs to the endothelium in a variety of hematologic and autoimmune disorders, including lupus nephritis. This study aims to unravel the mechanisms through which NETs jeopardize vascular integrity. APPROACH AND RESULTS: Microvascular and macrovascular endothelial cells were exposed to NETs, and subsequent effects on endothelial integrity and function were determined in vitro and in vivo...
May 11, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28487198/bimolecular-interaction-of-argpyrimidine-a-maillard-reaction-product-in-in-vitro-non-enzymatic-protein-glycation-model-and-its-potential-role-as-an-antiglycating-agent
#14
Abhishek Bhattacherjee, Kaliprasanna Dhara, Abhay Sankar Chakraborti
Non- enzymatic glycation, also known as Maillard reaction, is one of the most important and investigated reactions in biochemistry. Maillard reaction products (MRPs) like protein-derived advanced glycation end products (AGEs) are often referred to cause pathophysiological complications in human systems. On contrary, several MRPs are exogenously used as antioxidant, antimicrobial and flavouring agents. In the preset study, we have shown that argpyrimidine, a well-established AGE, interacts with bovine serum albumin (BSA) and glucose individually in standard BSA-glucose model system and successfully inhibits glycation of the protein...
May 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28487124/concordance-the-hemoglobin-glycation-index-with-glycation-gap-using-glycated-albumin-in-patients-with-type-2-diabetes
#15
Mee Kyoung Kim, Jee Sun Jeong, Hyuk-Sang Kwon, Ki Hyun Baek, Ki-Ho Song
BACKGROUND: The hemoglobin glycation index (HGI) is an index of differences in the glycation of hemoglobin according to blood glucose level. The glycation gap (G-gap) is an empiric measure of the extent of disagreement between hemoglobin A1C (HbA1C) and glycated albumin (GA). The aim of this study was to investigate the extent of agreement between the HGI and G-gap with respect to GA level, and to elucidate factors related to a high HGI. METHOD: Data were obtained from 105 patients with type 2 diabetes, and fasting blood glucose (FBG), HbA1c, and GA values were measured simultaneously...
April 18, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28480697/sensitive-detection-of-glycated-albumin-in-human-serum-albumin-using-electrochemiluminescence
#16
Yuki Inoue, Mikako Inoue, Masato Saito, Hiroyuki Yoshikawa, Eiichi Tamiya
Monitoring of blood glucose content is vital for diabetes patients. The conventional widely used method involves an invasive procedure for blood sampling. In addition, blood glucose measured by this way is affected by immediate food consumption and it does not show accurate baseline blood glucose measurement. Thus, monitoring blood glucose by a noninvasive method that accurately reflects baseline blood glucose content is important. Glycated albumin (GA), a biomarker for diabetes indicating the average blood glucose over 2 weeks, can be used for semilong-term blood glucose monitoring...
May 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28477414/do-glycoalbumin-levels-preferentially-reflect-changes-in-postprandial-glucose-excursions
#17
S K Paul, R R Holman
AIMS: To evaluate whether plasma glycated albumin, which provides an integrated measure of plasma glucose levels over the preceding 2-4 weeks, better reflects changes in postprandial glucose excursions than HbA1c . METHODS: People with suboptimum glycaemic control on dual oral therapy were enrolled in the Treating-to-Target-in-Type 2 diabetes (4-T) trial, in which participants were randomized to the addition of once-daily basal insulin, twice-daily biphasic insulin or thrice-daily prandial insulin...
May 6, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28453522/potential-biological-pathways-linking-type-d-personality-and-poor-health-a-cross-sectional-investigation
#18
Vera K Jandackova, Julian Koenig, Marc N Jarczok, Joachim E Fischer, Julian F Thayer
BACKGROUND: Type-D personality, defined as a combination of high negative affect and high social isolation, has been associated with poor health outcomes. However, pathways underlying this association are largely unknown. We investigated the relationship between Type-D personality and several biological and behavioral pathways including the autonomic nervous system, the immune system, glucose regulation and sleep in a large, apparently healthy sample. METHODS: Data from a total of 646 respondents (age 41...
2017: PloS One
https://www.readbyqxmd.com/read/28447727/advanced-glycation-end-products%C3%A2-induced-mitochondrial-energy-metabolism-dysfunction-alters-proliferation-of-human-umbilical-vein-endothelial-cells
#19
Yuan Li, Ye Chang, Ning Ye, Yintao Chen, Naijin Zhang, Yingxian Sun
Advanced glycation end products (AGEs) restrain the proliferation of endothelial cells, which is an important determinant of diabetic vasculopathy. Mitochondrial biogenesis serves an essential role in cellular adaptation and repair. The current study aimed to investigate alterations in mitochondrial energy metabolism in human umbilical vein endothelial cells (HUVECs) and the latent mechanism regulated by AGEs. The proliferation of cultured HUVECs stimulated with AGEs was detected using an MTT assay and a real‑time cell analyzer (RTCA)...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440573/glycated-albumin-is-stable-in-plasma-when-exposed-to-common-laboratory-conditions-and-comparable-when-drawn-from-venous-or-capillary-sites
#20
Andrew N Reynolds, Michelle Harper, Bernard J Venn, Jim Mann
BACKGROUND: Circulating glycated albumin is a marker of blood glucose reflecting the previous 2 weeks. However, the effects of storage conditions and draw site on glycated albumin values are not fully understood. METHODS: Fifteen plasma samples from people with type 2 diabetes were assessed during repeated freeze-thaw rounds for 10 cycles. A further 15 samples were stored at 4°C and assessed over 3 days. Another 40 samples drawn concurrently from capillary and venous sites had their glycated albumin content compared...
April 25, 2017: Journal of Clinical Laboratory Analysis
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