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See detailElévation faible d’hCG en dehors d’un contexte gravidique : à propos de deux cas et revue de la littérature
DE BACKER, Benjamin ULg; GOFFIN, Frédéric ULg; NISOLLE, Michelle ULg et al

in Annales de Biologie Clinique (2013), 71(4), 496-502

Unexpected finding or persistence of low human chorionic gonadotropin (hCG) levels is not a rare situation. It requires a clinico-biological approach in order to avoid misunderstandings that could lead to ... [more ▼]

Unexpected finding or persistence of low human chorionic gonadotropin (hCG) levels is not a rare situation. It requires a clinico-biological approach in order to avoid misunderstandings that could lead to inappropriate diagnostic or therapeutic attitudes. Beyond pregnancy, persistent low levels of hCG may be associated with various benign and malignant conditions, i.e. quiescent gestational trophoblastic disease (QTD), raised pituitary hCG or false positive elevation caused by circulating heterophile antibodies. We report the cases of two non-pregnant patients with low serum hCG. In the first case, hCG levels raised during several years following a spontaneous abortion. The likelihood of heterophilic antibodies interference was ruled out and extensive clinical investigation excluded the presence of a tumour. The diagnosis was QTD. In the second case, elevated hCG came to light as an incidental finding in a women with chronic renal failure and led the clinicians to question the laboratory. The cause was probably an increase in pituitary hCG consecutive to terminal renal failure. These cases illustrate the importance of understanding the biology of the hCG and the causes of its persistent low elevation, which are reviewed in this article. It is essential to demonstrate clinically the presence of a tumour in order to avoid unnecessary and ineffective chemotherapy and/or hysterectomy. [less ▲]

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See detailElevation of cardiac and oxidative stress biomarkers after a running activity in sedentary subjects
LE GOFF, Caroline ULg; Bury, Thierry ULg; Rodriguez de la Cruz, Carlos ULg et al

in Clinical Chemistry & Laboratory Medicine (2011, May), 49(Special Suppl), 313

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See detailElever les truies gestantes en groupes. Témoignages d'éleveurs
Boudry, Christelle ULg

Article for general public (2009)

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See detailElèves issus de l’immigration et diversité linguistique et culturelle
Lucchini, Silvia ULg

Scientific conference (2010, January 05)

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See detailEleveur autrement? Contribution d'une méthode audiovisuelle réflexive à l'explicitation d'un mode d'existence
Mathieu, Valérie ULg; Stassart, Pierre M ULg

in Eyraud, Corine; Lambert, Guy (Eds.) Filmer le Travail, Films et Travail (2009)

Ce papier se propose d’interroger le rôle que peut avoir un outil audiovisuel dans la production d’un mode d’existence particulier1. Dans notre démarche méthodologique, le chercheur n’est plus un ... [more ▼]

Ce papier se propose d’interroger le rôle que peut avoir un outil audiovisuel dans la production d’un mode d’existence particulier1. Dans notre démarche méthodologique, le chercheur n’est plus un observateur neutre et objectif , il est un apprenant qui, de la rencontre entre son expérience cognitive et l’expérience de vie des acteurs, cherchera comment tient une situation. Mais, plus précisément, comment le chercheur peut –il participer à l’émergence d’un groupe que l’on peut décrire comme se rendant capable d’expliciter ses intérêts sur un mode qui les constituerait éventuellement en affaire publique (Stengers, 2006) ? Cette question nous l’avons posée à travers la possibilité que nous avons entrevue de voir émerger un public (Dewey, 1927) autour de la question de l’élevage « pluri-actif » et du mode d’existence particulier des éleveurs pluri-actifs dans la région gaumaise (au sud de la Belgique). Ceux-ci exercent deux métiers à la fois : ils sont facteur, éducateur ou encore couvreur, et pratiquent l’élevage en plus, « après journée ». Ils nous intéressaient tout particulièrement car, bien que présents dans la région ils sont aussi bien effacés du discours de la profession agricole qu’absents des données statistiques produites par l’administration. [less ▲]

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See detailLes éleveurs d'alpaca du Pérou
Hanzen, Christian ULg; Bay, Daniel ULg

Learning material (2012)

Ce film de 52 minutes réalisé par Daniel Bay sur un scénario de Christian Hanzen présente les divers aspects du projet d'amélioration de la fibre d'alpaca financé par la Coopération Universitaire au ... [more ▼]

Ce film de 52 minutes réalisé par Daniel Bay sur un scénario de Christian Hanzen présente les divers aspects du projet d'amélioration de la fibre d'alpaca financé par la Coopération Universitaire au développement dans le cadre d'une coopération institutionnelle entre les universités de Namur (FUNDPN) et de Louvain (UCL) et l'Université Sans Antonio Abad del Cusco. Cette amélioration implique la caractérisation phénotypique de la fibre d'alpaca mais également l'amélioration des biotechnologies de la reproduction du mâle et de la femelle alpaca. [less ▲]

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See detailEleveurs et consommateurs, que pensent-ils de l'élevage
Bartiaux-Thill, Nicole; Stassart, Pierre M ULg; Lamine, Claire et al

Article for general public (2007)

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See detailThe elicitation of a systemic resistance by Pseudomonas putida BTP1 in tomato involves the stimulation of two lipoxygenase isoforms
Mariutto, Martin ULg; Duby, Franceline ULg; Adam, Akram et al

in BMC Plant Biology (2011), 11

Background Some non-pathogenic rhizobacteria called Plant Growth Promoting Rhizobacteria (PGPR) possess the capacity to induce in plant defense mechanisms effective against pathogens. Precedent studies ... [more ▼]

Background Some non-pathogenic rhizobacteria called Plant Growth Promoting Rhizobacteria (PGPR) possess the capacity to induce in plant defense mechanisms effective against pathogens. Precedent studies showed the ability of Pseudomonas putida BTP1 to induce PGPR-mediated resistance, termed ISR (Induced Systemic Resistance), in different plant species. Despite extensive works, molecular defense mechanisms involved in ISR are less well understood that in the case of pathogen induced systemic acquired resistance. Results We analyzed the activities of phenylalanine ammonia-lyase (PAL) and lipoxygenase (LOX), key enzymes of the phenylpropanoid and oxylipin pathways respectively, in tomato treated or not with P. putida BTP1. The bacterial treatment did not stimulate PAL activity and linoleate-consuming LOX activities. Linolenate-consuming LOX activity, on the contrary, was significantly stimulated in P. putida BTP1-inoculated plants before and two days after infection by B. cinerea. This stimulation is due to the increase of transcription level of two isoforms of LOX: TomLoxD and TomLoxF, a newly identified LOX gene. We showed that recombinant TomLOXF preferentially consumes linolenic acid and produces 13-derivative of fatty acids. After challenging with B. cinerea, the increase of transcription of these two LOX genes and higher linolenic acid-consuming LOX activity were associated with a more rapid accumulation of free 13-hydroperoxy-octadecatrienoic and 13-hydroxy-octadecatrienoic acids, two antifungal oxylipins, in bacterized plants. Conclusion In addition to the discovery of a new LOX gene in tomato, this work is the first to show differential induction of LOX isozymes and a more rapid accumulation of 13-hydroperoxy-octadecatrienoic and 13-hydroxy-octadecatrienoic acids in rhizobacteria mediated-induced systemic resistance. [less ▲]

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See detailEliciteurs dérivés de rhamnolipides : synthèses, modélisations et activités biologiques
Mayon, Patrick; Ait Barka, Essaid; Baillieul, Fabienne et al

Poster (2013, July 04)

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See detailElimination des métaux lourds par précipitation biologique
Toye, Dominique ULg; Schlitz, Marc; Crine, Michel ULg

in Tribune de l'Eau (La) (1993), 565

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See detailElimination of adsorption effects in the analysis of water-soluble vitamins in pharmaceutical formulations by capillary electrophoresis.
Fotsing, Lucas; Fillet, Marianne ULg; Chiap, Patrice ULg et al

in Journal of Chromatography. A (1999), 853(1-2), 391-401

A tendency to an increase in migration times was observed when different water-soluble vitamins were analysed repeatedly in pharmaceutical preparations by capillary electrophoresis. In order to better ... [more ▼]

A tendency to an increase in migration times was observed when different water-soluble vitamins were analysed repeatedly in pharmaceutical preparations by capillary electrophoresis. In order to better understand the origin of this effect, the influence of the vitamins and the excipients, such as cellulose derivatives, was investigated. These studies indicated that the increase in analyte migration times was most probably due to the adsorption of different kinds of constituents to the capillary wall. Different rinsing procedures were tested in order to eliminate these unfavourable effects. A rinse of the capillary with a 25 mM sodium dodecyl sulfate (SDS) solution in the running buffer between successive runs was found to be particularly effective when the analysis was performed by free solution capillary zone electrophoresis (CZE). When the vitamins were determined by micellar electrokinetic chromatography (MEKC) using SDS as surfactant, a short capillary rinse with the running buffer was sufficient to obtain reproducible migration times. The CZE and MEKC methods developed were validated and compared. Both methods could be applied to the determination of water-soluble vitamins in different multivitamin formulations. [less ▲]

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