Search results for "Adma"
showing 10 items of 15 documents
Sprint and endurance training in relation to redox and inflammatory status and biomarkers of aging in master athletes
2020
Purpose Studies have shown a positive influence of intense athletic training on several biomarkers of aging, but it remains unclear whether this influence is dependent of exercise-training-mode. This study compared redox balance, cytokine levels and biomarkers of aging between master sprinters and endurance athletes, as well as in young and middle-aged individuals as controls. Methods Participants were male master sprinters (SA, 50±8.9yrs; n=13) and endurance runners (EA, 53±8.2yrs; n=18) with remarkable athletic experience (∼25yrs of practice), besides untrained young (YC, 22.7±3.9yrs; n=17) and age-matched controls (MC, 45.5±9.8yrs; n=12). Anamnesis, anthropometrics, biomarkers of aging, …
Carotid restenosis is associated with plasma ADMA concentrations in carotid endarterectomy patients
2011
Abstract Background: The aim of this work has been to study the association between plasma asymmetric dimethylarginine (ADMA) concentrations and carotid stenosis in a group of 64 patients undergoing carotid endarterectomy (CEA). Methods: Arginine, ADMA and symmetric dimethylarginine (SDMA) were measured using capillary electrophoresis with UV detection. An evaluation of plasma concentrations of total cysteine (tCys) and total homocysteine (tHcy) was also performed. Results: Pearson’s analysis show a positive correlation between ADMA and carotid stenosis (r=0.37, p=0.003), which is also confirmed after stepwise multiple linear regression analysis. ADMA plasma concentrations were significantl…
L'attribution des classes aux enseignants : le cas des écoles primaires
2007
Assigning teachers to classrooms: The case of French primary schools - This paper reports a study which focused on teachers'assignment in French elementary school whose headmasters have no decision-making powers. Using both in-depth interviews with 18 headmasters and data about teachers and classrooms within their schools, the analysis shows that the potential for problems is significant as far as teachers are sorted into classrooms based on their preference first. When those individual preferences compete, a few basic rules apply and some arrangements should be found amongst members of the staff. Actually, this study reveals that bargaining, or at times yielding to teachers'preferences abo…
Water reuse from wastewater treatment: The transition towards circular economy in the water sector
2022
Water is crucial for economic development since it interacts with the agricultural, production, and energy sec-tors. However, the increasing demand and climate change put pressure on water sources. This paper argued the necessity of using reclaimed water for irrigation within the scope of a circular economy. The barriers (i.e., technological and economic, institutional/regulatory, and social) to water reuse practices were revealed. Lessons on how to overcome the barriers were learned from good practices. The roadmaps adopted in the European Union for the transition towards the circular economy were reviewed. It has been observed that these roadmaps are generally on the circularity of solid …
Decreased plasma soluble RAGE in patients with hypercholesterolemia: Effects of statins
2007
The receptor for advanced glycation endproducts (RAGE) is overexpressed at sites of vascular pathology. A soluble RAGE isoform (sRAGE) neutralizes the ligand-mediated damage by acting as a decoy. We hypothesized that in hypercholesterolemia up-regulation of the ligand-RAGE axis may bridge impairment of nitric oxide biosynthesis with oxidative stress. We measured in 60 hypercholesterolemic patients and 20 controls plasma total sRAGE levels, urinary 8-iso-prostaglandin (PG) F(2alpha) excretion, and plasma levels of asymmetric dimethylarginine (ADMA). The effects of two structurally different statins (pravastatin and atorvastatin) on these parameters were analyzed in 20 hypercholesterolemic su…
Novel GaN Based Solid State Power Amplifiers, Results, Advances and Comparison with Vacuum Tubes Based Microwave Power Modules
2018
Power amplifiers based on vacuum tubes or solid state are key items in a number of systems. Solid state technology is growing up for some applications and it may be complementary to the vacuum technology. This paperwork presents SSPA operational principles and performance. The GaN technology available in the market, the technology roadmap, a comparison with the vacuum tubes are introduced
Nitric oxide synthase inhibition and oxidative stress in cardiovascular diseases: Possible therapeutic targets?
2013
International audience; Nitric oxide (• NO) is synthetized enzymatically from L-arginine (L-Arg) by three NO synthase isoforms, iNOS, eNOS and nNOS. The synthesis of NO is selectively inhibited by guanidino-substituted analogs of L-Arg or methylarginines such as asymmetric dimethylarginine (ADMA), which results from protein degradation in cells. Many disease states, including cardiovascular diseases and diabetes, are associated with increased plasma levels of ADMA. The N-terminal catalytic domain of these NOS isoforms binds the heme prosthetic group as well as the redox cofactor, tetrahydrobiopterin (BH 4) associated with a regulatory protein, calmodulin (CaM). The enzymatic activity of NOS…
Atrial fibrillation is associated with a marker of endothelial function and oxidative stress in patients with acute myocardial infarction
2016
IF 4.066; International audience
Internal regulation of schools : School headmasters and the regulation of teachers'acitivities
2007
The decentralization process of educational system and autonomy given to secondary schools leads to redefinition of the role of school headmasters particularly in the field of pedagogy. Moreover, the traditional mechanism of regulation of teachers' activities (inspection) has been declined. In this case the headmasters of the schools should act as the regulator of teachers' activities. On the one side in literature it has been set that the conflict between bureaucratic and professional characteristics leads to weakening the regulation and problems existing between the headmasters and his teachers. Are the consequences of all the above mentioned issues lead to loose the regulation of teacher…
Introducing the BICA Society
2010
The Biologically Inspired Cognitive Architectures Society, or the BICA Society, is a recently formed nonprofit organization. The purpose of the Society is to promote and facilitate the transdisciplinary study of biologically inspired cognitive architectures (BICA), in particular, aiming at the emergence of a unifying, generally accepted framework for the design, characterization and implementation of human-level cognitive architectures. The First International Conference on Biologically Inspired Cognitive Architectures (BICA 2010) is at the same time officially the First Annual Meeting of the BICA Society.