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See detailPhotodegradation of bacteria with TiO2 produced by sol-gel method
Tasseroul, Ludivine ULg; Pàez Martinez, Carlos ULg; Braconnier, Benoît et al

Poster (2007)

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See detailHigh resolution 16 row computed tomography examination of the canine thorax
De Busscher; Bolen, Géraldine ULg; Cavrenne et al

Poster (2007)

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See detailEffect of base mutations in GC rich binding site on recognition by minor groove binding dications
Munde, M; Ismail, M; Peixoto, Paul ULg et al

Poster (2007)

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See detailAnalytical determination of Isomaltooligosaccharides mixture known as emerging prebiotics.
Goffin, Dorothée ULg

Poster (2007)

Isomaltooligosaccharides (IMOs) are non-digestible oligosaccharides, considered as prebiotics and therefore aim to selectively feed probiotics indigenous to the human colon. Recent data obtained in human ... [more ▼]

Isomaltooligosaccharides (IMOs) are non-digestible oligosaccharides, considered as prebiotics and therefore aim to selectively feed probiotics indigenous to the human colon. Recent data obtained in human subjects, support the involvement of dietary oligosaccharides in physiological processes in the different intestinal cell type and also outside the gastrointestinal tract (e.g. hormone production, lipid and carbohydrate metabolism). IMOs consists of glucose monomers linked by at least one α-1-6, or in a lower proportion α -1-3 (nigerose family) or α -1-2 (kojibiose family) glucosidic linkages. In our case they are produced enzymatically from corn starch. It results in a very complex mixture with molecules characterized at the same time by their DP value (from 2 to ~20), linkages types (α-1-2, 3 or 6) and the proportion and position of each type of linkage (only α -1-6 or combined types). The challenge of this study was to find a qualitative and quantitative method to characterize the syrups. In a subsequent study, every unidentified peak could be determined by NMR or Mass spectrometry. Three different chromatographic methods have been tested and compared over their selectivity, sensibility, robustness, applicability and their quantitative power. [less ▲]

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See detailApplying the electronic nose in the environment
Nicolas, Jacques ULg; Delva, Julien ULg; Romain, Anne-Claude ULg

Poster (2007)

The communication presents the various requirements imposed to electronic nose to become an instrument of environmental monitoring. Obstacles of the monitoring of real life environmental odours may be ... [more ▼]

The communication presents the various requirements imposed to electronic nose to become an instrument of environmental monitoring. Obstacles of the monitoring of real life environmental odours may be classified into three categories: • the final goal of the study, requiring to measure a global odour annoyance and not any gaseous emission, • the analysed sample itself, which is highly variable, due to the process evolution and to the influence of ambient parameters; • and the operating conditions, needing to work far from any building and sometimes at locations not easy to reach. The paper suggests some simple solutions to those problems. [less ▲]

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See detailEffect of cyclodextrin derivatives on bronchial epithelial cell layer permeability
Belhadj-Salem, Leila; Bosquillon, Cynthia; Delattre, Luc ULg et al

Poster (2007)

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See detailLa jonction thalweg-cours d'eau : pour une gestion dès l'amont
Dautrebande, Sylvia; Degre, Aurore ULg; Dagnelies, Joelle

Poster (2007)

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See detailSYNOVIOCYTES, NOT CHONDROCYTES, RELEASE FREE RADICALS AFTER CYCLES OF ANOXIA/RE-OXYGENATION
Schneider, Nicole ULg; Mouithys-Mickalad, Ange ULg; Lejeune, Jean-Philippe ULg et al

Poster (2007)

Introduction : An oxidant activity has been implicated in the onset of equine osteoarthritis. Most of the studies have been done on articular chondrocytes, but little is known about the role of ... [more ▼]

Introduction : An oxidant activity has been implicated in the onset of equine osteoarthritis. Most of the studies have been done on articular chondrocytes, but little is known about the role of synoviocytes. Objective : Our aim was to investigate if equine articular chondrocytes, primary synoviocytes or synoviocytes of a continuous cell line are able to produce free radicals after exposure to anoxia and re-oxygenation. Methods : By oxymetry and electron paramagnetic resonance (EPR), we investigated the effects of repeated anoxia/re-oxygenation (A/R) periods on the respiration and production of free radicals by synoviocytes (rabbit HIG-82 cell line and primary equine synoviocytes) and equine articular chondrocytes. Three periods of 20 min anoxia followed by re-oxygenation were applied to 10exp7 cells; O2 consumption was measured before anoxia and after each re-oxygenation. After the last A/R, cellular free radical formation was investigated by EPR spectroscopy with spin trapping technique (n = 3 for each cell line). Results : Both types of synoviocytes showed a high O2 consumption, which was slower after anoxia. By EPR with the spin trap POBN, we proved a free radical formation. Results were similar for equine and rabbit synoviocytes. For chondrocytes, we observed a low O2 consumption, unchanged by anoxia, and no free radical production. Conclusion : These observations suggest an oxidant activity of synoviocytes, potentially important for the onset of osteoarthritis. [less ▲]

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See detailRole of Sox 10 in the development of the inner ear
Bodson, M; Breuskin, I; Thelen, Nicolas ULg et al

Poster (2007)

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See detailAn atypical cell during development of the auditory organ: the inner pillar cell
Thelen, N; Malgrange, B; Thiry, Marc ULg

Poster (2007)

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See detailUltrastructural organization of the nucleolus in reptiles
Lamaye, Françoise; Thiry, Marc ULg

Poster (2007)

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See detailMulti-dectector row computed tomography of the carpal joint in dogs
Cavrenne; Bolen, Géraldine ULg; DeBusscher et al

Poster (2007)

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See detailCarbon dioxide in European coastal waters
Borges, Alberto ULg; Schiettecatte, L.-S.; Abril, G. et al

Poster (2007)

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See detailThe role of CRP on neonatal hypoxic-ischemic encephalopathy
Kinugasa, Yukiko; Mimura, Kazuya; Katayama, Miho et al

Poster (2007)

Detailed reference viewed: 34 (3 ULg)
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See detailThe tumor-associated RCAS1 protein:a contemporary view about pre-eclampsia?
Tskitishvili, Ekaterine ULg; Mimura, Kazuya; Kinugasa, Yukiko et al

Poster (2007)

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See detailSynthesis of highly dispersed Pd/SiO2 cogelled xerogel catalysts from various silylated ligands
Lambert, Stéphanie ULg; Tran, Kim Yên; Arrachart, Guilhem et al

Poster (2007)

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See detailCharacterization of puff pastry margarines with and without TFA
Cavillot, V; Kervyn de Meerendré, M; Pierart, Céline ULg et al

Poster (2007)

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See detailPhotodynamic therapy for cutaneous carcinoma
NIKKELS, Arjen ULg; thirion, L.; QUATRESOOZ, Pascale ULg et al

Poster (2007)

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See detailVeszelyite: A New Blue-Green Maya Pigment
Garcia Moreno, Renata; Mathis, François ULg; Strivay, David ULg

Poster (2007)

Detailed reference viewed: 33 (1 ULg)
See detailSox 10 is not necessary for auditory neurons survival
Breuskin, I; Bodson, M; Thelen, Nicolas ULg et al

Poster (2007)

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See detailSuccessful therapy of verrucous carcinoma by photodynamic therapy
NIKKELS, Arjen ULg; thirion, L.; QUATRESOOZ, Pascale ULg et al

Poster (2007)

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See detailMetamorphosis rate of paedomorphs in a natural newt population
Denoël, Mathieu ULg; Lena, J. P.; Joly, Pierre

Poster (2007)

Facultative paedomorphis is a developmental process in which larvae opt for metamorphosis before maturity or reach sexual maturity while retaining larval traits (e.g., gills). Although metamorphosis is ... [more ▼]

Facultative paedomorphis is a developmental process in which larvae opt for metamorphosis before maturity or reach sexual maturity while retaining larval traits (e.g., gills). Although metamorphosis is not reversible, the paedomorphic state is not a dead end as branchiate adults are able to metamorphose. However, the extent of this process has never been quantified in the wild. Our aim was then to estimate switching rate by carrying out a 3-year monitoring survey of a population of Alpine newts (Triturus alpestris) inhabiting an alpine lake. The data were analysed using a multi-state capture-recapture model. While morph switching did occur in this population, it involved only 12% of the paedomorphs each year (i.e., 17% of recaptured individuals), suggesting that metamorphosis was not favoured in this population during the study period. This rate is lower than in laboratory experiments during which newts from the same population were placed in water drying conditions, but as shown previously paedomorphs can avoid metamorphosis in migrating to permanent water bodies when their pond dries out. These results are in agreement with other studies showing an advantage of a dimorphism in heterogeneous habitats. The ontogenetic pathway of wild Alpine newts is thus characterised by two forks in the developmental pathway. The first occurs during the larval stage, and the second occurs in paedomorphic adults. Such a two-level decision process may allow individuals to cope with environmental uncertainty. This may be particularly adaptive as aquatic conditions can deteriorate over time as shown by yearly changes in body condition of newts [less ▲]

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See detailEcological thresholds and estimates of breaking points in newt populations: a useful tool to categorise habitat use and apply conservation measures
Denoël, Mathieu ULg; Ficetola, Gentile

Poster (2007)

Ecological thresholds are defined as points at which a rapid change occurs from one ecological condition to another. Their determination in species–habitat relationships has important implications because ... [more ▼]

Ecological thresholds are defined as points at which a rapid change occurs from one ecological condition to another. Their determination in species–habitat relationships has important implications because they allow to understand ecological requirements of species and to provide efficient conservation measures. However, there is a lack of concordance across studies and this method was not yet applied to newts. In this study, we sampled 371 ponds to gather occurrence data on the palmate newt Triturus heveticus and the Alpine newt Triturus alpestris. We tested for the existence of significant thresholds for three variables: distance to forest, forest and crop covers. We found significant thresholds for both landscape configuration and composition, with relationships between distance to forest and occurrence of Triturus alpestris and T. helveticus, and forest and crop cover and T. helveticus. Both species require breeding ponds within a given distance from the forest, but T. helveticus is more dependent on forest availability than T. alpestris: its ecological threshold is located at lower distance from forest edge, and requires also higher values of forest cover. Crops have a negative influence on palmate newt distribution with a significant breaking point, but not for T. alpestris in the studied area. These results indicate that thresholds can be a useful concept from which tools may be developed. They are particularly pertinent to focus conservation effort for threatened species and their habitats as quantitative measures of the most required habitats for species can be obtained from statistically determined breaking points [less ▲]

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See detailMechanical stress strongly induces interleukin-6 production by osteoblasts: a new in vitro 3D compression model
Sanchez, Christelle ULg; Gabay, Odile; Salvat, Colette et al

Poster (2007)

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See detailMechanical stress strongly induces interleukin-6 production by osteoblasts: a new in vitro 3D compression model
Sanchez, Christelle ULg; Gabay, Odile; Salvat, Colette et al

Poster (2007)

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See detailRelationship between human tumor-associated antigen RCAS1 and gestational diabetes mellitus
Tskitishvili, Ekaterine ULg; Komoto, Yoshiko; Kinugasa, Yukiko et al

Poster (2007)

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See detailSemi-separative isolation of Fn-type inulin from hydrolised globe artichoke inulin.
Ronkart, Sébastien; Blecker, Christophe ULg; Fourmanoir, Hélène et al

Poster (2007)

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See detailThe effect of hypothermia on neonatal stem cells
Kanagawa, Takeshi; Tomimatsu, Takuji; Mimura, Kazuya et al

Poster (2007)

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See detailSpatial dynamics of rRNAs within the cell nucleus
Thiry, Marc ULg; Lamaye, Françoise; Thelen, Nicolas ULg et al

Poster (2007)

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See detailNumerical modelling of coupled mechanics and gas transfer
Gerard, Pierre ULg; Charlier, Robert ULg; Barnichon, Jean-Dominique et al

Poster (2007)

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See detailEnrichment of anhydrous milk fat in polyunsatured fatty acid residues from linseed and rapeseed oil through enzymatic interesterification
Aguedo, Mario ULg; Hanon, Emilien ULg; Danthine, Sabine ULg et al

Poster (2007)

The interesterification, or ester exchange, between two fats leads to the rearrangement of acyl moieties in both. The use of a sn-1,3-specific lipase confines the exchange of fatty acid residues to the sn ... [more ▼]

The interesterification, or ester exchange, between two fats leads to the rearrangement of acyl moieties in both. The use of a sn-1,3-specific lipase confines the exchange of fatty acid residues to the sn-1 and sn-3 positions of triacylglycerides (TAG), generating products with characteristics that cannot be obtained through a chemical process or a blending. Such reactions require mild conditions with no solvent needed and they yield no unhealthful trans fatty acids, justifying the stepped-up interest of enzymatic interesterification for the production of margarines and other food fats. The aim of this work was to use enzymatic interesterification to enrich anhydrous milk fat (AMF) with unsaturated fatty acid C18 residues from linseed oil (LO) and eventually from rapeseed oil (RO) through some binary blends and one ternary blend. For that, the 1,3-specific lipase from Thermomyces lanuginosa (Lipozyme TL IM) was used in solvent-free batch and micro-aqueous reactions and fat blends with different mass ratios were tested. The evolution of TAG profiles, of interesterification degre (ID) and of free fatty acids (FFA), was followed along the reactions. Determination of dropping points (DP) and solid fat contents (SFC) enabled a rheological characterization of the products. The end products were also characterized for their oxidative stability and their textural properties. [less ▲]

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See detailRandom Subwindows and Multiple Output Decision Trees for Generic Image Annotation
Dumont, Marie; Marée, Raphaël ULg; Geurts, Pierre ULg et al

Poster (2007)

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See detailSIZE DISTRIBUTION OF METALLIC POWDERS : A COMPARISON OF DIGITAL IMAGING AND LASER DIFFRACTION
Gregoire, Max; Michel, Frédéric ULg; Campana, Florent et al

Poster (2007)

Automated image analysis of particles under controlled orientation (SIA) is becoming a challenging technique for laser diffraction (LD) in the field of sizing metallic particles above 5 μm. Thanks to ... [more ▼]

Automated image analysis of particles under controlled orientation (SIA) is becoming a challenging technique for laser diffraction (LD) in the field of sizing metallic particles above 5 μm. Thanks to optimal particle dispersion and fully automated microscopic imaging, it is now possible to gather individual measurements on thousands of particles within a minute. The aim of this paper is to compare results obtained with both image analysis and laser diffraction from a selection of powders (figure 1) in the range between 5 μm and 250 μm. [less ▲]

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See detailVascular architecture of breast cancer xenographs over-expressing MT4-MMP
Chabottaux, V; Thiry, Marc ULg; Alvarez Gonzalez, M-L et al

Poster (2007)

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See detailControlled release of drugs from an original multi-component device
Nizet, dominique; Zalfen, Alina; Collard, Laurence ULg et al

Poster (2007)

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See detailAn unusual cell type of the auditory organ during neonatal development: the inner pillar cells
Thelen, Nicolas ULg; Breuskin, I; Malgrange, B et al

Poster (2007)

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See detailSpring CO2 dynamics within sea ice: abiotical versus biological control.
Delille, Bruno ULg; Schoemann, Véronique; Becquevort, Sylvie et al

Poster (2007)

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See detailCannibalism in Anchovy (Engraulis encrasicolus) in the North Aegean Sea (Greece)
Gennotte, Vincent ULg; Torre, Michele; Kallianiotis, Argyris

Poster (2007)

Egg and larval cannibalism was characterized in the European anchovy (Engraulis encrasicolus) during the spawning season in the North Aegean Sea. About 3 % of the sampled fish had consumed eggs and 7 ... [more ▼]

Egg and larval cannibalism was characterized in the European anchovy (Engraulis encrasicolus) during the spawning season in the North Aegean Sea. About 3 % of the sampled fish had consumed eggs and 7 % larvae. Egg consumption was observed during the night and larval consumption during the day. Cannibalism seems to be an opportunistic feeding strategy of anchovy, depending on prey availability and proximity of adults, larvae and eggs in relation with the diel vertical migrations of the fish. [less ▲]

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See detailAlien invasive species and climate change: overview of research activities
Vanderhoeven, Sonia ULg; Saad, Layla ULg; Tiébré, Marie-Solange et al

Poster (2007)

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See detailPlant-based production of human lysozyme mutants
Tocquin, Pierre ULg; Dumoulin, Mireille ULg; Dony, Nicolas ULg et al

Poster (2007)

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See detailA TEM study of the reptilian nucleolus by means of cytochemical and immunocytological methods
Lamaye, Françoise; Thiry, Marc ULg

Poster (2007)

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See detailThe Aznalcóllar disaster: An in-depth PIXE study of the pirite mine spill of 1998
Calvo Del Castillo, Helena ULg; Ruvalcaba Sil, Jose Luis; Álvarez, M. A. et al

Poster (2007)

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See detailProvenance of Belgian Merovingian garnets by PIXE on IPNAS Cyclotron
Mathis, François ULg; Vrielynck, Olivier; Laclavetine, Kilian et al

Poster (2007)

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See detailThe XMM-LSS Survey : properties and two-point angular correlations of point-like sources
Garcet, O.; Gandhi, P.; Disseau, L. et al

Poster (2007)

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See detailRole of coactivators SRC-1 and CARM1 in estrogen receptor-alpha and beta-dependent cell proliferation in the dentate gyrus of adult female rats
Charlier, Thierry ULg; Lieblich, Stephanie E; Pawluski, Jodi L et al

Poster (2007)

Nuclear receptors such as the estrogen receptors (ER) require the presence of coactivator proteins, such as the steroid receptor coactivator (SRC-1) and coactivator-associated arginine methyltransferase ... [more ▼]

Nuclear receptors such as the estrogen receptors (ER) require the presence of coactivator proteins, such as the steroid receptor coactivator (SRC-1) and coactivator-associated arginine methyltransferase (CARM1) to enhance the transcription of target genes. Importantly, in vitro work suggests that ER􀀁 and ER􀀂 differ in the ability to recruit coactivators such as SRC-1. For example, SRC-1 has a strong affinity for ER􀀁 and a weaker affinity for ER􀀂. Interestingly, both ER􀀁 and ER􀀂 are individually involved in estradiol-enhanced cell proliferation in the dentate gyrus of adult female rats. In addition, previous work suggests a role for CARM1 in cell proliferation and for SRC-1 in cell differentiation, therefore the present study aimed to determine whether proliferating cells in the dentate gyrus of the hippocampus co-express the coactivators SRC-1 and CARM1. We also aimed to determine whether ER􀀁 and ER􀀂 agonists would result in altered expression of SRC-1 and CARM1 in new proliferating cells in the dentate gyrus. To investigate this, adult female rats were ovariectomized and treated with either the ER􀀁 agonist Propyl-pyrazole triol (PPT), the ER􀀂 agonist diarylpropionitrile (DPN), estradiol benzoate (EB), or vehicle (CTRL). Rats were then injected with BrdU (200 mg/kg) and sacrificed 24 hours later. Preliminary data suggests that DPN, PPT and EB increase cell proliferation in the dentate gyrus compared to the vehicle-injected group. Interestingly, the number of proliferating cell expressing SRC-1 is similar in all groups, suggesting that neither of the ER agonists nor EB treatment affects the co-expression of BrdU+ cells with SRC-1. However, additional measurements are currently being done to investigate whether CARM-1 is differentially expressed in proliferating cells in the hippocampus following selective ER agonist treatment. [less ▲]

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See detailThe Dusty Young Universe
Meisenheimer, K.; Dannerbauer, H.; Klaas, U. et al

Poster (2007)

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See detailEffect of aggressive encounters on plasma progesterone, corticosterone and corticosteroid binding capacity
Charlier, Thierry ULg; Hammond, Geoffrey L; Soma, Kiran K

Poster (2007)

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See detailObservations of comet McNaught from La Silla
Snodgrass, C.; Jehin, Emmanuel ULg; Fitzsimmons, A. et al

Poster (2007)

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See detailVascular architecture of breast cancer xenographs over-expressing MT4-MMP
Chabottaux, V; Thiry, Marc ULg; Blacher, Silvia ULg et al

Poster (2007)

Detailed reference viewed: 9 (1 ULg)
See detailEuroPlaNet is celebrating a very special year
Chatzchristou, E. T.; Nazé, Yaël ULg

Poster (2007)

Detailed reference viewed: 6 (0 ULg)