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Caimi G, Hopps E, Montana M, Carollo C, Calandrino V, Gallà E, Canino B, Lo Presti R. Behaviour of carbonyl groups in several clinical conditions: Analysis of our survey. Clin Hemorheol Microcirc 2020; 74:299-313. [PMID: 31683469 DOI: 10.3233/ch-190689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Protein carbonylation is a marker of oxidative protein damage, that is likely involved in the pathogenesis of several diseases. The aim of this study was to evaluate the protein carbonyl (PC) groups in different clinical conditions. It included different groups of subjects: 81 trained subjects; 23 subjects with mild essential hypertension; 31 middle-aged subjects with metabolic syndrome (MS); 106 subjects with MS not selected for age (subdivided into two subgroups, with and without diabetes mellitus); 91 obese adults subdivided in two subgroups (BMI 30-35 Kg/m2 and BMI > 35 kg/m2); 48 subjects with obstructive sleep apnea syndrome (OSAS) subdivided in accordance with the apnea/hypopnea index (AHI); 27 subjects with chronic kidney disease (CKD) on conservative therapy; 31 subjects with CKD on haemodialysis treatment; and 50 subjects with juvenile myocardial infarction. PC groups were reduced in trained subjects in comparison with sedentary controls, while no variation was observed in mild essential hypertension. PC groups were increased in MS subjects and in adult obese subjects. In MS subjects the PC groups were not influenced by the presence of diabetes mellitus and in adult obese subjects were not influenced by the obesity degree. In OSAS subjects only those with AHI > 30 showed an increase of PC groups. PC groups increased in CKD subjects undergoing conservative treatment and haemodialysis therapy. In dialyzed subjects, after a standard dialysis session, there was a marked increase in PC groups. In juvenile myocardial infarction PC groups were higher than in controls; there was no difference between STEMI and NSTEMI and their concentration was unaffected by the number of cardiovascular risk factors or stenosed coronary vessels.
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Affiliation(s)
- Gregorio Caimi
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Eugenia Hopps
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Maria Montana
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Caterina Carollo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Vincenzo Calandrino
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Eleonora Gallà
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Baldassare Canino
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, Università degli Studi di Palermo, Palermo, Italy
| | - Rosalia Lo Presti
- Department of Psychology, Educational Science and Human Movement, Università degli Studi di Palermo, Palermo, Italy
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van Ypersele de Strihou C, Miyata T. Advanced Glycation and Advanced Oxidation Protein Products: The Effect of Peritoneal Dialysis. Perit Dial Int 2020. [DOI: 10.1177/089686080602600211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
| | - Toshio Miyata
- Institute of Medical Sciences and Department of Medicine Tokai University School of Medicine Kanagawa, Japan
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Grossin N, Wautier MP, Wautier JL, Gane P, Taamma R, Boulanger E. ImprovedIn VitroBiocompatibility of Bicarbonate-Buffered Peritoneal Dialysis Fluid. Perit Dial Int 2020. [DOI: 10.1177/089686080602600610] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BackgroundConventional peritoneal dialysis fluids (PDFs) have been shown to damage the mesothelial layer and are associated with the development of peritoneal fibrosis and neoangiogenesis. New-generation PDFs have therefore been developed with physiological pH and reduced levels of glucose degradation products (GDPs), precursors of advanced glycation end products (AGEs). In this work, we evaluated and compared the improved biocompatibility of two new-generation PDFs (Balance and bicaVera) using mesothelial cell biology; we also compared them to a standard PDF (stay·safe) (all PDFs by Fresenius Medical Care, Fresnes, France).Methodsstay·safe, Balance, and bicaVera were tested for their effect on human peritoneal mesothelial cell (HPMC) viability by measuring cell proliferation and apoptosis, and oncosis induction. The formation of AGEs was evaluated by immunoassay. Transforming growth factor beta-1 and vascular endothelial growth factor (VEGF) were immunoassayed in HPMC supernatants exposed to the above PDFs.ResultsAt 15 g/L glucose concentration, HPMC exposure to bicaVera resulted in higher cell proliferation compared to Balance ( p < 0.001) and stay·safe ( p < 0.001). Compared to the lactate-buffered PDFs (Balance and stay·safe), oncosis was significantly lower in cells exposed to bicaVera ( p < 0.05). bicaVera, containing lower amounts of GDPs, generated less AGE formation ( p < 0.05) and VEGF production ( p < 0.05) than either Balance or stay·safe.ConclusionsNew-generation PDFs with physiological pH and lower GDP levels, especially if bicarbonate-buffered (bicaVera), have fewer in vitro toxic effects on mesothelial cells and may contribute to peritoneal preservation, thus improving long-term treatment of PD patients.
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Affiliation(s)
- Nicolas Grossin
- Institut National de la Transfusion Sanguine UFR Médecine, Paris
| | | | - Jean-Luc Wautier
- Institut National de la Transfusion Sanguine UFR Médecine, Paris
- Université Paris 7-Denis Diderot, UFR Médecine, Paris
| | | | | | - Eric Boulanger
- Institut National de la Transfusion Sanguine UFR Médecine, Paris
- Clinique de Néphrologie, Centre Hospitalier Régional Universitaire, Lille, France
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Optimisation of an Advanced Oxidation Protein Products Assay: Its Application to Studies of Oxidative Stress in Diabetes Mellitus. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:496271. [PMID: 26113954 PMCID: PMC4465816 DOI: 10.1155/2015/496271] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 04/14/2015] [Accepted: 04/14/2015] [Indexed: 01/05/2023]
Abstract
Advanced oxidation protein products (AOPP) are reportedly elevated in the plasma of patients with a number of diseases, including diabetes mellitus, that involve oxidative stress. However, the accurate measurement of AOPP in human plasma is hampered by the formation of a precipitate following the addition of potassium iodide and glacial acetic acid according to the published assay procedure. Here we describe a modification of the AOPP assay which eliminates interference by precipitation and provides a robust, reliable, and reproducible protocol for the measurement of iodide oxidising capacity in plasma samples (intra-assay CV 1.7–5.3%, interassay CV 5.3–10.5%). The improved method revealed a significant association of AOPP levels with age (p < 0.05) and hypertension (p = 0.01) in EDTA-anticoagulated plasma samples from 52 patients with diabetes and 38 nondiabetic control subjects, suggesting a possible link between plasma oxidising capacity and endothelial and/or vascular dysfunction. There was no significant difference between AOPP concentrations in diabetic (74.8 ± 7.2 μM chloramine T equivalents) and nondiabetic (75.5 ± 7.0 μM chloramine T equivalents) individuals.
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Advanced glycation end products, aortic stiffness, and wave reflection in peritoneal dialysis as compared to hemodialysis. Int Urol Nephrol 2013; 46:817-24. [DOI: 10.1007/s11255-013-0597-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 10/25/2013] [Indexed: 10/26/2022]
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Willemsen S, Hartog JWL, van Veldhuisen DJ, van der Meer P, Roze JF, Jaarsma T, Schalkwijk C, van der Horst ICC, Hillege HL, Voors AA. The role of advanced glycation end-products and their receptor on outcome in heart failure patients with preserved and reduced ejection fraction. Am Heart J 2012; 164:742-749.e3. [PMID: 23137505 DOI: 10.1016/j.ahj.2012.07.027] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 07/24/2012] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Advanced glycation end products (AGEs) are increased in patients with heart failure (HF). We studied the predictive value of plasma AGEs N(ε)-(carboxymethyl)lysine (CML), pentosidine, and the soluble form of its receptor (sRAGE) in a large HF population. METHODS In 580 patients hospitalized with HF, plasma AGEs were measured before discharge when patients were clinically stable. Patients were followed for a period of 18 months. Primary end point was a composite of death and HF admissions. CML was determined by liquid chromatography mass spectrometry, pentosidine by high-performance liquid chromatography and sRAGE by sequential sandwich immunoassay. RESULTS Mean age was 71 ± 11 years, 62% were men, and mean left ventricular ejection fraction was 0.32 ± 0.14. At baseline, mean CML level was 2.16 ± 0.73 μmol/L, median pentosidine was 0.043 (0.030-0.074) μmol/L, and median sRAGE level was 2.92 (1.90-4.59) ng/mL. CML and pentosidine levels were independently related to the composite end-point (HR, 1.20 per SD; 95% CI,1.05-1.37; P = .01 and HR, 1.15 per SD; 95% CI, 1.00-1.31; P = .045, respectively) and HF hospitalization (HR, 1.27 per SD; 95% CI, 1.10-1.48; P = .001 and HR, 1.27 per SD; 95% CI, 1.10-1.47; P = .001, respectively). Furthermore, CML levels were independently related to increased mortality (P = .006). Whereas sRAGE levels were univariately predictive for outcome, in multivariate models sRAGE did not reach statistical significance. DISCUSSION In HF patients, both CML and pentosidine predict HF hospitalization and the combined primary end-point (mortality or HF-hospitalization), whereas sRAGE did not predict events. In addition, CML was significantly and independently associated with a higher risk for mortality.
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Affiliation(s)
- Suzan Willemsen
- Department of Cardiology, University Medical Center Groningen, Groningen The Netherlands
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Lyons TJ, Basu A. Biomarkers in diabetes: hemoglobin A1c, vascular and tissue markers. Transl Res 2012; 159:303-12. [PMID: 22424433 PMCID: PMC3339236 DOI: 10.1016/j.trsl.2012.01.009] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 01/08/2012] [Accepted: 01/09/2012] [Indexed: 12/19/2022]
Abstract
Biomarkers are conventionally defined as "biological molecules that represent health and disease states." They typically are measured in readily available body fluids (blood or urine), lie outside the causal pathway, are able to detect subclinical disease, and are used to monitor clinical and subclinical disease burden and response to treatments. Biomarkers can be "direct" endpoints of the disease itself, or "indirect" or surrogate endpoints. New technologies (such as metabolomics, proteomics, genomics) bring a wealth of opportunity to develop new biomarkers. Other new technologies enable the development of nonmolecular, functional, or biophysical tissue-based biomarkers. Diabetes mellitus is a complex disease affecting almost every tissue and organ system, with metabolic ramifications extending far beyond impaired glucose metabolism. Biomarkers may reflect the presence and severity of hyperglycemia (ie, diabetes itself) or the presence and severity of the vascular complications of diabetes. Illustrative examples are considered in this brief review. In blood, hemoglobin A1c (HbA1c) may be considered as a biomarker for the presence and severity of hyperglycemia, implying diabetes or prediabetes, or, over time, as a "biomarker for a risk factor," ie, hyperglycemia as a risk factor for diabetic retinopathy, nephropathy, and other vascular complications of diabetes. In tissues, glycation and oxidative stress resulting from hyperglycemia and dyslipidemia lead to widespread modification of biomolecules by advanced glycation end products (AGEs). Some of these altered species may serve as biomarkers, whereas others may lie in the causal pathway for vascular damage. New noninvasive technologies can detect tissue damage mediated by AGE formation: these include indirect measures such as pulse wave analysis (a marker of vascular dysfunction) and more direct markers such as skin autofluorescence (a marker of long-term accumulation of AGEs). In the future, we can be optimistic that new blood and tissue-based biomarkers will enable the detection, prevention, and treatment of diabetes and its complications long before overt disease develops.
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Affiliation(s)
- Timothy J Lyons
- Harold Hamm Diabetes Center and Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, 1000 N. Lincoln Blvd., Oklahoma City, OK 73104-5020, USA.
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Oxidative stress and inflammation in renal patients and healthy subjects. PLoS One 2011; 6:e22360. [PMID: 21829457 PMCID: PMC3145638 DOI: 10.1371/journal.pone.0022360] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 06/24/2011] [Indexed: 01/14/2023] Open
Abstract
The first goal of this study was to measure the oxidative stress (OS) and relate it to lipoprotein variables in 35 renal patients before dialysis (CKD), 37 on hemodialysis (HD) and 63 healthy subjects. The method for OS was based on the ratio of cholesteryl esters (CE) containing C18/C16 fatty acids (R2) measured by gas chromatography (GC) which is a simple, direct, rapid and reliable procedure. The second goal was to investigate and identify a triacylglycerol peak on GC, referred to as TG48 (48 represents the sum of the three fatty acids carbon chain lengths) which was markedly increased in renal patients compared to healthy controls. We measured TG48 in patients and controls. Mass spectrometry (MS) and MS twice in tandem were used to analyze the fatty acid composition of TG48. MS showed that TG48 was abundant in saturated fatty acids (SFAs) that were known for their pro-inflammatory property. TG48 was significantly and inversely correlated with OS. Renal patients were characterized by higher OS and inflammation than healthy subjects. Inflammation correlated strongly with TG, VLDL-cholesterol, apolipoprotein (apo) C-III and apoC-III bound to apoB-containing lipoproteins, but not with either total cholesterol or LDL-cholesterol. In conclusion, we have discovered a new inflammatory factor, TG48. It is characterized with TG rich in saturated fatty acids. Renal patients have increased TG48 than healthy controls.
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Lorenzi R, Andrades ME, Bortolin RC, Nagai R, Dal-Pizzol F, Moreira JCF. Oxidative damage in the liver of rats treated with glycolaldehyde. Int J Toxicol 2011; 30:253-8. [PMID: 21378371 DOI: 10.1177/1091581810395630] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Liver diseases are often associated with hyperglycemia, inflammation, and oxidative stress. These conditions, commonly associated with diabetes mellitus and obesity, facilitate the formation of advanced glycation end products (AGEs). These products are known to impair protein function and promote inflammation. Accumulation of AGEs such as N(ε)-(carboxymethyl)lysine (CML) is related to chronic liver diseases and their severity. Although several reports suggest a crucial role of AGEs in liver failure, there is little investigation on the direct effects of reducing sugars, precursors of AGEs, and on the onset and progression of liver failure. In this work, we investigate the effects of intravenously administrated glycolaldehyde (GA), a short-chain aldehyde, on oxidative parameters in the liver of Wistar rats. Animals received a single injection of GA (10, 50, or 100 mg/kg) and were sacrificed after 6, 12, or 24 hours. Levels of protein carbonyl, lipid peroxidation, and reduced thiol were quantified. The activities of catalase, superoxide dismutase, and glyoxalase I were also assessed. The amount of CML was quantified with specific antibody. There was an increase in oxidative stress markers in the liver of GA-treated rats. Glycolaldehyde induced a decrease in the activities of all enzymes assayed. Also, all tested doses led to an increase in CML content. Our data suggest that GA might play an important role in liver diseases through the impairment of antioxidant defenses and generation of AGEs.
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Affiliation(s)
- Rodrigo Lorenzi
- Centro de Estudos em Estresse Oxidativo, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Köse FA, Seziş M, Akçiçek F, Pabuççuoğlu A. Oxidative and Nitrosative Stress Markers in Patients on Hemodialysis and Peritoneal Dialysis. Blood Purif 2011; 32:202-8. [DOI: 10.1159/000328030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 04/01/2011] [Indexed: 12/27/2022]
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Gaxatte C, Daroux M, Bloch J, Puisieux F, Deramecourt V, Boulanger E. [Cognitive impairment and chronic kidney disease: which links?]. Nephrol Ther 2010; 7:10-7. [PMID: 21050832 DOI: 10.1016/j.nephro.2010.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 09/01/2010] [Accepted: 09/01/2010] [Indexed: 10/18/2022]
Abstract
Ageing of the population leads to an increase of cognitive disorders and chronic renal failure incidence. Compared to the general population, prevalence of cognitive impairment is more important in renal failure patients, especially in dialyzed patients. No direct link has been established between renal failure and cognitive impairment. The care of older and older patients and the high frequency of vascular risk factors, in particular hypertension and diabetes, partially explain the prevalence of vascular dementia and Alzheimer disease in this population. Other factors as the anemia, phosphocalcic metabolism disorders facilitate the cognitive impairment. The present work reviews the links existing between chronic renal failure and cognitive impairment.
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Affiliation(s)
- Cédric Gaxatte
- Pôle de gérontologie, CHRU de Lille, 23, rue des Bateliers, 59037 Lille cedex, France.
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Castoldi G, Antolini L, Bombardi C, Perego L, Mariani P, Viganò MR, Torti G, Casati M, Corti A, Zerbini G, Valsecchi MG, Stella A. Oxidative stress biomarkers and chromogranin A in uremic patients: effects of dialytic treatment. Clin Biochem 2010; 43:1387-92. [PMID: 20833163 DOI: 10.1016/j.clinbiochem.2010.08.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 08/26/2010] [Accepted: 08/27/2010] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To evaluate oxidative stress in uremia and dialysis and chromogranin A, a stress hormone that could be related to oxidative processes. METHODS Plasma oxidative stress biomarkers (-SH, 8-OHdG, and ox-LDL) and chromogranin A were measured in 89 outpatients (21 uremic patients, 17 in peritoneal dialysis, and 51 in haemodialysis), and in 18 subjects with normal renal function. RESULTS -SH groups were significantly reduced in heamodialysis, peritoneal, and uremic patients as compared with the control group (p=0.01), while 8-OHdG was increased (p<0.01). No differences were observed for ox-LDL. Chromogranin A was increased in uremic, peritoneal and haemodialysis patients (p<0.01), showing a positive correlation to 8-OHdG (p<0.01). CONCLUSION Oxidative stress biomarkers and chromogranin A levels differ between control subjects when compared to both uremic and dialysis patients. No differences were observed between uremic and dialysis patients, suggesting that uremia is the major source of the increase in oxidative stress and CgA levels in patients with end stage renal disease.
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Affiliation(s)
- Giovanna Castoldi
- Clinica Nefrologica, Azienda Ospedaliera San Gerardo, Dipartimento di Medicina Clinica e Prevenzione, Università degli Studi di Milano-Bicocca, Monza, Italy.
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Lorenzi R, Andrades ME, Bortolin RC, Nagai R, Dal-Pizzol F, Moreira JCF. Circulating glycolaldehyde induces oxidative damage in the kidney of rats. Diabetes Res Clin Pract 2010; 89:262-7. [PMID: 20605248 DOI: 10.1016/j.diabres.2010.05.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 04/26/2010] [Accepted: 05/06/2010] [Indexed: 11/28/2022]
Abstract
Renal failure is a key pathological issue in diabetic patients. Increased levels of advanced glycation end-products (AGEs) have been associated to diabetic complications, including diabetic nephropathy. Models of AGE-treated animals have been applied to evaluate the effect of such molecules on oxidative parameters involved in the pathogenesis and evolution of diabetes disease. However, little is known about the effect of glycating agents other than glucose. Here we investigate the effect of intravenously administrated glycolaldehyde (GA) on oxidative stress parameters of the kidney. Male Wistar rats received a single injection of GA in different doses (10, 50 or 100mg/kg) and were sacrificed after 6, 12 or 24h. Activities of antioxidant enzymes catalase, superoxide dismutase and glyoxalase I were assayed. Damage to proteins and lipids were also assayed. The content of N(epsilon)-(carboxymethyl)lysine (CML) was quantified. Glycolaldehyde induced a decrease in the activity of all enzymes studied. Lipoperoxidation and protein carbonylation raised, accompanied by a decrease in sulfhydryl groups. Despite the oxidative stress generated by GA, no change was found in the content of CML, suggesting that accumulation of AGEs in the kidney might occur at later steps in the development of diabetic nephropathy.
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Affiliation(s)
- Rodrigo Lorenzi
- Centro de Estudos em Estresse Oxidativo, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Zhou FL, Zhang WG, Wei YC, Meng S, Bai GG, Wang BY, Yang HY, Tian W, Meng X, Zhang H, Chen SP. Involvement of oxidative stress in the relapse of acute myeloid leukemia. J Biol Chem 2010; 285:15010-15015. [PMID: 20233720 DOI: 10.1074/jbc.m110.103713] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The aims of the present study were to determine the level of oxidative stress and the salient factors leading to the relapse of acute myeloid leukemia (AML). Oxidative stress-related parameters and the expressions of specific genes were monitored in 102 cases of AML during a pretreatment period from a primary status to a relapse status. In addition, age-matched healthy subjects were classified as controls. The activities of adenosine deaminase and xanthine oxidase were higher in the relapse condition, whereas those of glutathione peroxidase, monoamine oxidase, and superoxide dismutase, and the total antioxidant capacity (T-AOC) were lower in the primary condition and in controls. Of particular note, levels of advanced oxidation protein products, malondialdehyde, and 8-hydroxydeoxyguanosine were also significantly higher in relapse patients. Furthermore, real-time PCR with SYBR Green revealed that the expression levels of human thioredoxin (TRX) and indoleamine 2,3-dioxygenase were increased in relapse patients. Pearson correlation analysis revealed that the T-AOC was positively correlated with GSH but negatively correlated with 8-OHdG, TRX, and indoleamine 2,3-dioxygenase. Linear regression showed that a low T-AOC and up-regulated TRX expression were the independent factors correlated with relapse. A strong association between oxidative stress and the incidence of disease relapse was observed, which has potential prognosis implications. These results indicate that oxidative stress is a crucial feature of AML and probably affects the development and relapse of AML.
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Affiliation(s)
- Fu-Ling Zhou
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004.
| | - Wang-Gang Zhang
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - Yong-Chang Wei
- Department of Clinical Oncology, the Affiliated No. 1 Hospital, Xi'an JiaoTong University, Jian-kang Road, No. 1, Xi'an 710061
| | - Shan Meng
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - Gai-Gai Bai
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - Bai-Yan Wang
- Shanghai Institute of Hematology, Rui-jin Hospital, School of Medicine, Shanghai Jiao Tong University, 197 Rui Jin Er Road, Shanghai 200025, China
| | - Hui-Yun Yang
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - Wei Tian
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - Xin Meng
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - Hui Zhang
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
| | - She-Ping Chen
- Department of Clinical Hematology, the Affiliated No. 2 Hospital, Xi'an JiaoTong University, West Five Road, No. 157, Xi'an 710004
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Ignace S, Fouque D, Arkouche W, Steghens JP, Guebre-Egziabher F. Preserved residual renal function is associated with lower oxidative stress in peritoneal dialysis patients. Nephrol Dial Transplant 2009; 24:1685-9. [PMID: 19276104 DOI: 10.1093/ndt/gfp077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Residual renal function (RRF) correlates with survival in peritoneal dialysis (PD). We investigated the association between oxidative stress and RRF in PD. METHODS Adequacy of dialysis, total and free malondialdehydes (MDA), and lipid hydroperoxides (LHP) were obtained from 23 stable PD patients. RESULTS Free MDA level decreased with total weekly Kt/V urea (r = -0.51, P = 0.013) and urinary Kt/V (KRU) (r = -0.53, P = 0.009), but not with peritoneal Kt/V. Similar results were found with LHP level. In multivariate analysis, total weekly Kt/V urea and KRU remained associated with free MDA and LHP, independently of gender, nutritional or inflammatory status, and peritoneal permeability. CONCLUSION A preserved RRF is associated with lower serum levels of lipid peroxidation products among PD patients.
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Affiliation(s)
- Sophie Ignace
- Hospices Civils de Lyon, Department of Nephrology and Hypertension, Edouard Herriot Hospital, 5, Place d'Arsonval, 69 347 Lyon Cedex 03, France.
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Rabbani N, Thornalley PJ. Quantitation of Markers of Protein Damage by Glycation, Oxidation, and Nitration in Peritoneal Dialysis. Perit Dial Int 2009. [DOI: 10.1177/089686080902902s10] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Proteolysis products of proteins damaged by glycation, oxidation, and nitration—glycated, oxidized, and nitrated amino acids (glycation, oxidation, and nitration free adducts)—are waste products normally excreted in urine and cleared in peritoneal dialysate. Glucose degradation products in peritoneal dialysis (PD) fluids may increase protein damage, giving rise to increased protein glycation, oxidation, and nitration adduct residues of proteins and increased flux of glycation, oxidation, and nitration free adducts. Increased protein damage has been linked to mortality in end-stage renal disease. Reliable quantitation of markers for adducts of protein glycation, oxidation, and nitration is required for mechanistic studies and for morbidity and mortality risk analysis in PD patients. We review the available analytical techniques for such quantitation. Stable isotopic dilution analysis with tandem mass spectrometry is the “gold standard.” This method needs to be applied further in the study of PD and to validate other techniques so that the effect of PD on the metabolism and clearance of damaged proteins and related products can be quantified, and so that best-practice fluid management can be established to minimize cardiovascular risk.
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Affiliation(s)
- Naila Rabbani
- Warwick Medical School, Clinical Sciences Research Institute, University of Warwick, University Hospital, Coventry, U.K
| | - Paul J. Thornalley
- Warwick Medical School, Clinical Sciences Research Institute, University of Warwick, University Hospital, Coventry, U.K
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17
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Quand débuter la dialyse ? Nephrol Ther 2007. [DOI: 10.1016/s1769-7255(07)78753-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Boulanger E, Puisieux F, Gaxatte C, Wautier JL. Vieillissement: rôle et contrôle de la glycation. Rev Med Interne 2007; 28:832-40. [PMID: 17597260 DOI: 10.1016/j.revmed.2007.05.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2007] [Accepted: 05/11/2007] [Indexed: 12/21/2022]
Abstract
PURPOSE Advanced glycation end-products (AGEs) accumulate in aging tissues and organs during rheumatoid arthritis and Alzheimer disease. These aging toxins are especially involved in cell alteration during diabetes mellitus (glycotoxin) and renal failure (uremic toxin). AGEs participate to the endothelial dysfunction leading to diabetic macro but also micro-angiopathy. AGEs binding to cell receptors are critical steps in the deleterious consequences of AGE excess. AGE-receptor activation altered cell and organ functions by a pro-inflammatory, pro-coagulant and pro-fibrosis factors cell response. CURRENT KNOWLEDGE AND KEY POINTS Non-enzymatic glycation and glycoxidation with glucose auto-oxidation represent the two main pathways resulting in AGE formation. No exclusive AGE classification is actually available. Pathophysiological mechanisms are described to explain AGE toxicity. AGEs bind to cell receptors inducing deleterious consequences such as endothelial dysfunction after endothelial RAGE activation. AGEs can also have deleterious effects through glycated protein accumulation or in situ protein glycation. FUTURE PROSPECTS AND PROJECTS Many in vitro or animal studies demonstrated that AGE deleterious effects can be prevented by glycation inhibitors, AGE cross-link breakers or AGE-RAGE interaction inhibition. New molecules are actually studied as new strategy to prevent or treat the deleterious effects of these aging toxins.
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Affiliation(s)
- E Boulanger
- Biologie du vieillissement vasculaire, pôle de recherche, faculté de médecine, CHRU de Lille-II, 1, place de Verdun, 59045 Lille, France.
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Boulanger E, Grossin N, Wautier MP, Taamma R, Wautier JL. Mesothelial RAGE activation by AGEs enhances VEGF release and potentiates capillary tube formation. Kidney Int 2007; 71:126-33. [PMID: 17149374 DOI: 10.1038/sj.ki.5002016] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Advanced glycation end-products (AGEs) inhibit ischemia-induced angiogenesis but are potential triggers of neoangiogenesis that occurs in peritoneal dialysis (PD) patients. We investigated whether the effect of glucose and AGEs on human peritoneal mesothelial cells (HPMCs) might alter the release of vascular endothelial growth factor (VEGF) and subsequently the formation of capillary tubes by human umbilical vein endothelial cells (HUVECs). HPMCs were exposed to glucose and the glycated protein Nvarepsilon-(carboxymethyl)lysine-human serum albumin (CML-HSA) and VEGF production was measured by reverse transcription-polymerase chain reaction and enzyme-linked immunosorbent assay. Capillary tube formation by HUVECs in presence of HPMC supernatant or co-cultured with HPMC was investigated. AGE and VEGF levels in PD effluents from 11 patients were measured. CML-HSA stimulated VEGF production by HPMCs, P<0.001. Glucose and AGE inhibited capillary tube formation by HUVECs, P<0.001. HPMC supernatant potentiated capillary tube formation, P<0.001. In co-culture with HPMC capillary tube formation was increased, especially by HPMCs stimulated by CML-HSA, P<0.001. Anti-VEGF antibody limited this effect, P<0.001. Preincubation of HPMCs with anti-receptor for AGEs (RAGE) antibody reduced capillary tube formation, P<0.001. AGE and VEGF levels in PD effluents were increased during long dwell time, P<0.05 and P<0.001, respectively. In a co-culture system, we showed that VEGF production by HPMC favors capillary tube formation through mesothelial RAGE activation and could explain neoangiogenesis in PD patient.
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Affiliation(s)
- E Boulanger
- Vascular and Cellular Biology Laboratory, Institut National de la Transfusion Sanguine, University of Paris7/Denis Diderot, Paris, France.
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