HE2B - HE: Recent submissions
Voici les éléments 61-80 de 131
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Qu'est-ce qui va changer? - Capitre dans Coeur et Plongée
Livre/Ouvrage ou monographieLe monde sous-marin est devenu accessible au plus grand nombre. Les méthodes de plongée se sont diversifiées, la population de plongeurs aussi... Mais la plongée demeure une activité à risques. Les pathologies cardiaques peuvent faire courir des dangers importants, non seulement au plongeur, mais aussi à tous ceux impliqués en cas d'assistance. Or, les données concernant les décès en plongée mettent ... -
Influence of decompression sickness on vasocontraction of isolated rat vessels
18 février 2015, HE Bruxelles BrabantArticle scientifiqueStudies conducted in divers indicate that endothelium function is impaired following a dive even without decompression sickness (DCS). Our previous experiment conducted on rat isolated vessels showed no differences in endothelium-dependent vasodilation after a simulated dive even in the presence of DCS, while contractile response to phenylephrine was progressively impaired with increased decompression ... -
Fluoxetine Protection in Decompression Sickness in Mice is Enhanced by Blocking TREK-1 Potassium Channel with the "spadin" Antidepressant
16 février 2016, HE Bruxelles BrabantArticle scientifiqueIn mice, disseminated coagulation, inflammation, and ischemia induce neurological damage that can lead to death. These symptoms result from circulating bubbles generated by a pathogenic decompression. Acute fluoxetine treatment or the presence of the TREK-1 potassium channel increases the survival rate when mice are subjected to an experimental dive/decompression protocol. This is a paradox because ... -
L' enseignement du FLE à travers les applications en ligne: une didactique novatrice?
01 décembre 2017, HE Bruxelles BrabantArticle scientifiqueExpérimentation de quelques plateformes, applications ou autres sites en ligne permettant l'acquisition ou le perfectionnement de la langue française. Critique de leur configuration, de leur formulation et de leur résolution. -
Apprenant allophone et système scolaire belge : un doute permanent
01 septembre 2015, HE Bruxelles BrabantArticle scientifiqueLes autrices interrogent la place de l'enseignement du FLES dans le système éducatif belge. -
De Handji aux Ténèbres de Robert Poulet: une invitation à l'onirisme réaliste
25 mai 2015, HE Bruxelles BrabantArticle scientifiqueQuelles sont les frontières entre le fantastique dit "classique" et les "réalités fantastiques" théorisées par Hellens? Robert Poulet ne serait-il pas le meilleur disciple d'Hellens en permettant aux lettres belges d'entrer dans une troisième sphère de l'évolution du courant fantastique, celle du Réalisme magique? -
De Bruges-la-Morte de G. Rodenbach aux Ténèbres de R. Poulet: une initiation du lecteur à une nouvelle lecture romanesque
07 novembre 2012, HE Bruxelles BrabantArticle scientifiquePublication parue dans le cadre des journées des jeunes chercheurs de l'Université de Strasbourg. Cette publication entend mettre en avant le jeu particulier d'effacement du narrateur dans deux oeuvres belges majeures. -
Au royaume de Wells, Lear aurait-il pu être roi?
17 juillet 2018, HE Bruxelles BrabantArticle scientifiqueL'oeuvre de Shakespeare, "Le Roi Lear" a-t-il connu des réécritures modernes et contemporaines? A travers cet article, l'autrice démontre que la nouvelle de H.G. Wells, "Le Pays des Aveugles" est une réécriture de King Lear dont les embranchements sont semblables aux strates ou au rhizomes deleuziens. -
Tirofiban, a Glycoprotein IIb/IIIa Antagonist, Has a Protective Effect on Decompression Sickness in Rats: Is the Crosstalk Between Platelet and Leukocytes Essential?
11 juillet 2018, HE Bruxelles BrabantArticle scientifiqueIn its severest forms, decompression sickness (DCS) may extend systemically and/or induce severe neurological deficits, including paralysis or even death. It seems that the sterile and ischemic inflammatory phenomena are consecutive to the reaction of the bubbles with the organism and that the blood platelet activation plays a determinant role in the development of DCS. According to the hypotheses ... -
Simulated air dives induce superoxide, nitric oxide, peroxynitrite, and Ca 2+ alterations in endothelial cells
03 avril 2019, HE Bruxelles BrabantArticle scientifiqueHuman diving is known to induce endothelial dysfunction. The aim of this study was to decipher the mechanism of ROS production during diving through the measure of mitochondrial calcium concentration, peroxynitrite, NO°, and superoxide towards better understanding of dive-induced endothelial dysfunction. Air diving simulation using bovine arterial endothelial cells (compression rate 101 kPa/min to ... -
Endothelial function may be enhanced in the cutaneous microcirculation after a single air dive
30 septembre 2020, HE Bruxelles BrabantArticle scientifiqueIntroduction: The effects of scuba diving on the vessel wall have been studied mainly at the level of large conduit arteries. Data regarding the microcirculation are scarce and indicate that these two vascular beds are affected differently by diving. Methods: We assessed the changes in cutaneous microcirculation before an air scuba dive, then 30 min and 24 h after surfacing. Endothelium-dependent ... -
Factors influencing the severity of long-term sequelae in fishermen-divers with neurological decompression sickness
31 mars 2020, HE Bruxelles BrabantArticle scientifiqueIntroduction: Numerous studies have been conducted to identify the factors influencing the short-term prognosis for neurological decompression sickness (DCS). However, the long-term sequelae are rarely assessed. The purpose of this study to investigate the factors likely to influence the long-term prognosis. Methods: Twenty-seven Vietnamese fishermen-divers who on average 9 (SD 6) years beforehand ... -
Effect of a single, open-sea, air scuba dive on human micro- and macrovascular function
15 août 2013, ; Pontier, Jean-Michel; BALESTRA, Costantino
; Mazur, Aleksandra; Wang, Qiong; Buzzacott, Peter; Theron, Michaël; Mansourati, Jacques; Guerrero, François, HE Bruxelles Brabant
Article scientifiquePurpose: Previous studies have shown that bubble formation induced endothelial damage on conduit arteries. We aim to evaluate the effect of diving on microvascular and macrovascular function. Methods: Nine divers took part in a SCUBA dive at 30 msw (400 kPa), for 30 min of bottom time. Pre- and post-dive, they underwent an assessment of endothelial-dependent (acetylcholine) and endothelial-independent ... -
A ternary model of decompression sickness in rats
01 décembre 2014, Buzzacott, Peter; ; Mazur, Aleksandra; Wang, Qiong; Papadopoulou, Virginie; Theron, Michaël; BALESTRA, Costantino; Guerrero, François, HE Bruxelles Brabant
Article scientifiqueBackground: Decompression sickness (DCS) in rats is commonly modelled as a binary outcome. The present study aimed to develop a ternary model of predicting probability of DCS in rats, (as no-DCS, survivable-DCS or death), based upon the compression/decompression profile and physiological characteristics of each rat. Methods: A literature search identified dive profiles with outcomes no-DCS, ... -
Ultrasound lung "comets" increase after breath-hold diving
23 octobre 2010, ; ; Charbel, Brian; Cialoni, Danilo; Musimu, Patrick; Sponsiello, Nicola; Marroni, Alessandro; Pastouret, Fredéric; BALESTRA, Costantino, HE Bruxelles Brabant
Article scientifiqueThe purpose of the study was to analyze the ultrasound lung comets (ULCs) variation, which are a sign of extra-vascular lung water. Forty-two healthy individuals performed breath-hold diving in different conditions: dynamic surface apnea; deep variable-weight apnea and shallow, face immersed without effort (static maximal and non-maximal). The number of ULCs was evaluated by means of an ultrasound ... -
Oxidative stress in breath-hold divers after repetitive dives
08 juin 2013, ; Sponciello, Nicholas; Rozloznik, Miroslav; ; Guerrero, François; Cialoni, Danilo; BALESTRA, Costantino, HE Bruxelles Brabant
Article scientifiqueIntroduction: Hyperoxia causes oxidative stress. Breath-hold diving is associated with transient hyperoxia followed by hypoxia and a build-up of carbon dioxide (CO₂), chest-wall compression and significant haemodynamic changes. This study analyses variations in plasma oxidative stress markers after a series of repetitive breath-hold dives. Methods: Thirteen breath-hold divers were asked to perform ... -
The 'normobaric oxygen paradox': does it increase haemoglobin?
14 juin 2012, De Bels, David; ; Devriendt, Jacques; ; Lafère, Pierre; Valsamis, Joseph; ; Meeus, Philippe; BALESTRA, Costantino, HE Bruxelles Brabant
Article scientifiqueBackground: A novel approach to increasing erythropoietin (EPO) using oxygen (O2) (the 'normobaric oxygen paradox') has been reported in healthy volunteers. We investigated whether the EPO increase is sufficient to induce erythropoiesis by comparing two protocols of O2 administration. Methods: We compared the effect of daily versus alternate days 100% O2, breathed for 30 minutes, on haemoglobin ... -
The effect of a passive stretch training protocol on performance during a drop jump in humans
15 juin 2013, Lévénez, Morgan; ; Bottero, Antoine; ; Bruyère, A; Tinlot, Arnaud; BALESTRA, Costantino; Provyn, Steven, HE Bruxelles Brabant
Article scientifiqueAim: Our study's aim is to show how a five-week stretch training protocol, based on passive stretching, can change muscle performance during a drop jump (stretch shortening cycle). Methods: This study observes in 8 healthy subjects (four males and four females), the effect of a 5-week passive stretch training protocol on the stretch shortening cycle (SSC) during the performance of a drop jump, ... -
Effect of tetrahydrobiopterin and exercise training on endothelium-dependent vasorelaxation in SHR
02 juin 2013, Guerrero, François; Sanéo, Thioub; Goanvec, Christelle; ; Feray, Annie; BALESTRA, Costantino; Mansourati, Jacques, HE Bruxelles Brabant
Article scientifiqueWe examined whether the improvement of impaired NO-dependent vasorelaxation by exercise training could be mediated through a BH4-dependent mechanism. Male spontaneously hypertensive rats (SHR, n = 20) and Wistar-Kyoto rats (WKY, n = 20) were trained (Tr) for 9 weeks on a treadmill and compared to age-matched sedentary animals (Sed). Endothelium-dependent vasorelaxation (EDV) was assessed with ... -
A red orange extract modulates the vascular response to a recreational dive: a pilot study on the effect of anthocyanins on the physiological consequences of scuba diving
07 novembre 2015, BALESTRA, Costantino; Cimino, Francesco; ; ; Provyn, Steven; Canali, Raffaella; Bonina, Andrea; Virgili, Fabio, HE Bruxelles Brabant
Article scientifiqueNutritional antioxidants have been proposed as an expedient strategy to counter the potentially deleterious effects of scuba diving on endothelial function, flow-mediated dilation (FMD) and heart function. Sixteen volunteers performing a single standard dive (20 min at 33 m) according to US Navy diving procedures were randomly assigned to two groups: one was administered with two doses of 200 mg of ...