Apport des troponines T et I ultrasensibles dans le diabèteLE GOFF, Caroline ; LAURENT, Terry ; GARWEG, Christophe et alin Immuno-Analyse & Biologie Spécialisée [=IBS] (2012, February), 27(1), 40 Introduction : Le diabète atteint environ 3% de la population française. Or, cette maladie expose à l'apparition précoce de complications cardiovasculaires. Les troponines de nouvelles générations ... [more ▼] Introduction : Le diabète atteint environ 3% de la population française. Or, cette maladie expose à l'apparition précoce de complications cardiovasculaires. Les troponines de nouvelles générations hautement sensibles pourraient être un bon outil diagnostic pour mettre en évidence des macroou micro-angiopathies non diagnostiquée chez ces patients. Le but de notre étude était de comparer la performance de la troponine T ultrasensible (hsTnT) (Roche Diagnostic) avec la troponine I ultrasensible (TnI II) (Abbott Diagnostic) chez le sujet diabétique. Matériel et méthodes : Vingt patients diabétiques (âge moyen : 52.6 ± 8.4 ans) ont été sélectionnés sur le critère d’un taux d’hémoglobine glyquée (HbA1c) élevé. Ces sujets ont été comparés à vingt sujets contrôles d’âge moyen : 60.05 ± 2.86 ans. Les patients atteints d’insuffisance rénale et d’affections cardiovasculaires ont été exclus. Les analyses ont été réalisées sur du plasma hépariné lithium. La hsTnT a été dosée par électrochemiluminescence sur le Modular E (Roche Diagnostic). Abbott utilise des microparticules chemiluminescentes pour le dosage de la TnI II sur l’ARCHITECT i. Résultats : Les sujets diabétiques ont un taux plasmatique de hsTnT représenté par les valeurs suivantes [médiane (1er quartile, 3ème quartile)] : 0,007 (0,03 ; 0,018) ng/mL ; alors que les sujets contrôles négatifs présentent les valeurs suivantes : 0,003 (0,003 ; 0,004) ng/mL. La différence de taux de hsTnT observée entre ces 2 populations est statistiquement significative (p = 0,000922). Pour la TnI II, on observe un taux plasmatique de: 0,004 (0,003 ; 0,075) ng/mL chez les sujets diabétiques et 0,002 (0,001 ; 0,005) ng/mL chez les sujets contrôles. La différence de taux de TnI II observée entre ces 2 populations n’est pas statistiquement significative (p > 0,005). Discussion-conclusion : Au décours d’un diabète, il apparait que les taux de hsTnT sont augmentés de façon significative par rapport au groupe des contrôles négatifs. Si les taux hsTnT augmentent chez le diabétique, il semblerait normal qu’il en soit de même pour la TnI II, vu que ces deux marqueurs sont intimement liés. Nous ne l’avons pas observé mais ceci peut être du à la plus faible performance analytique du dosage de la TnI II utilisé. Cette libération de hsTnT dans le sang peut être due aux micro- et macro-angiopathies au niveau des coronaires induites au cours d’un diabète. [less ▲] Detailed reference viewed: 95 (20 ULg) Comparison between the new AccuChek Inform II glucose meter and the Rapidlab 865 blood gas analyzer: implications for use of the Inform II in tight glycemic controlDE BACKER, Benjamin ; ; HALENG, Jeanine et alPoster (2011, October 15) Detailed reference viewed: 21 (4 ULg) Analytical validation of Accu-check Inform II meters and strips before their use in the wards: pratical experience of the CHU de LiègeCAVALIER, Etienne ; PONCIN, Joseph ; MUSSO, Giuseppe et alin Clinical Chemistry (2011, October), 27(S10), 143 Detailed reference viewed: 30 (11 ULg) Analytical validation of Accu-check Inform II meters and strips before their use in the wards: practical experience of the CHU de Liège.CAVALIER, Etienne ; PONCIN, Joseph ; MUSSO, Giuseppe et alPoster (2011, July 27) Detailed reference viewed: 18 (4 ULg) Evaluation of the Vitros 5600 Integrated System for Enzymatic determination of Creatinine in blood plasmaTeixeira, Jelda ; Denooz, André ; Haleng, Jeanine et alPoster (2009) Detailed reference viewed: 50 (17 ULg) Comparison of two immunoassays for quantitative measurement of oxydized-LDLLe Goff, Caroline ; Haleng, Jeanine ; Chapelle, Jean-Paul ![]() in Immuno-Analyse & Biologie Spécialisée [=IBS] (2009), 24 Detailed reference viewed: 11 (2 ULg) Comparison of two immunoassays for oxidized LDL determinationLe Goff, Caroline ; Haleng, Jeanine ; Denooz, André et alin Annales de Biologie Clinique (2009), 67(1), Detailed reference viewed: 15 (6 ULg) Critical difference: from results to interpretation and its impact on patient careGilmaire, Julie ; Descy, Julie ; Haleng, Jeanine et alPoster (2008, May) Detailed reference viewed: 24 (5 ULg) Stress oxydant : comment évaluer le statut du patient?Pincemail, Joël ; Haleng, Jeanine ; Le Goff, Caroline et alin Nutrition Infos (2007), (oct/nov/déc), 47-50 Detailed reference viewed: 50 (8 ULg) Le stress oxydantHaleng, Jeanine ; Pincemail, Joël ; Defraigne, Jean-Olivier et alin Revue Médicale de Liège (2007), 62(10), 628-38 Oxidative stress is defined as an imbalance between the production of reactive oxygen species (ROS) and the antioxidant network, in favour of the former. Our lifestyle (smoking, alcoholism, obesity ... [more ▼] Oxidative stress is defined as an imbalance between the production of reactive oxygen species (ROS) and the antioxidant network, in favour of the former. Our lifestyle (smoking, alcoholism, obesity, intense physical exercise), but also our inadequate diet, contributes to significantly increase the production of ROS in our organism. This is potentially associated with an increased risk of developing ageing-related pathologies such as cardiovascular diseases and cancer. As a matter of prevention, it is necessary to have in hands a high technology allowing to correctly evidence the oxidative stress status of an individual in order to render optimal our antioxidant defences and to decrease the oxidative damages in DNA, proteins and lipids. [less ▲] Detailed reference viewed: 1022 (14 ULg) Effect of different contraceptive methods on the oxidative stress status in women aged 40-48 years from the ELAN study in the province of Liege, BelgiumPincemail, Joël ; Vanbelle, Sophie ; Gaspard, Ulysse et alin Human Reproduction (2007), 22(8), 2335-2343 Oxidative stress is associated with the development of several disorders including cardiovascular disease and cancer. Among conditions known to influence oxidative stress, the use of oral contraception ... [more ▼] Oxidative stress is associated with the development of several disorders including cardiovascular disease and cancer. Among conditions known to influence oxidative stress, the use of oral contraception (OC) in women has been a matter of ongoing discussion. METHODS: A total of 897 eligible and healthy volunteers were recruited from among the patients of 50 general practitioners participating in the ELAN study (Etude Liegeoise sur les ANtioxydants). A subsample consisting of 209 women aged 40-48 years was studied for a comprehensive oxidative stress status (OSS), including the analysis of antioxidants, trace elements and three markers of oxidative damage to lipids. Among 209 subsample, 49 (23%) were OC users (OCU), 119 (57%) non-contraception users (NCU) and 41 (20%) were intrauterine (hormonal and copper) devices users (IUD). RESULTS: After adjustment for smoking, systolic and diastolic blood pressure and BMI (or waist circumference), a marked and significant increase in lipid peroxides was observed among OCU women when compared with NCU and IUD users. A cut-off value of 660 mu M in lipid peroxides allowed the discrimination of OCU from the two other groups. In contrast, no difference was observed in the plasma concentration of both oxidized low-density lipoprotein (LDL) and their related antibodies. The increased level in lipid peroxides was strongly related to higher concentrations of copper (r < 0.84; P < 0.0001, cut-off value 1.2 mg/1). When compared with NCU and IUD users, plasma antioxidant defences were significantly altered in OCU women as shown by lower levels of beta-carotene (decrease of 39%; P < 0.01) andytocopherol (decrease by 22%; P < 0.01). In contrast, higher concentrations of selenium (increased by 11.8%; P < 0.01) were observed in OCU women. Blood concentrations of vitamin C, alpha-tocopherol and zinc were unaffected by OC use. CONCLUSIONS: The intake of OC significantly increases the lipid peroxidation in women aged 40-48 years. This may represent a potential cardiovascular risk factor for these women. [less ▲] Detailed reference viewed: 76 (17 ULg) |
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