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See detailExposition « Tatoueurs, tatoués » (Musée du Quai Branly)
Hagelstein, Maud ULg

Article for general public (2014)

On présentera naturellement « Tatoueurs, tatoués » comme la nouvelle exposition à haute teneur anthropologique du Musée du Quai Branly. Mais son originalité dépasse cette seule dimension : si la valeur ... [more ▼]

On présentera naturellement « Tatoueurs, tatoués » comme la nouvelle exposition à haute teneur anthropologique du Musée du Quai Branly. Mais son originalité dépasse cette seule dimension : si la valeur ethnologique ou sociologique du tatouage a déjà été explorée dans la littérature scientifique (à défaut d’être bien connue), sa valeur artistique est sans doute plus volontiers négligée par les chercheurs. Intégrer le tatouage aux cultures alternatives dignes d’intérêt esthétique, tel semble être l’objectif avoué des commissaires Anne & Julien, fondateurs en 2010 de la revue Hey ! (éditions Ankama), une publication underground engagée offrant une visibilité méritée à des formes artistiques non conventionnelles, voire totalement marginales – parmi lesquelles le cirque, la bande dessinée, la taxidermie, le street art ou le tatouage. Le projet retenu pour cette exposition vise à montrer le basculement progressif du tatouage – d’abord « traditionnel, ethnographique, tribal ou à visée magique » – vers une dimension ornementale (donc esthétique) absente à l’origine mais s’imposant lentement à partir du 17e siècle, et plus radicalement au début du 19e siècle. Au japon par exemple, qui constitue l’un des foyers créatifs du tatouage, le dessin corporel indélébile associe son destin à celui des estampes. [less ▲]

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See detailLes expositions d'art sonore: désarçonnantes?
Eloy, Céline ULg

Conference (2009)

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See detailExposure factors influencing serum dioxin concentrations in the French dioxin and incinerators study
Frery, N.; Zeghnoun, A.; Sarter, H. et al

in Organohalogen Compounds (2007), 69

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See detailExposure of several Belgian consumer groups to pesticide residues through fresh fruit and vegetable consumption
Claeys, Wendie L.; Schmit, Jean-François; Bragard, Claude et al

in Food Control (2011), 22(3-4), 508-516

The output of a pesticide surveillance program (detection frequency and number of exceeding measures) can lead to unnecessary concern among consumers since they lack information concerning the actual ... [more ▼]

The output of a pesticide surveillance program (detection frequency and number of exceeding measures) can lead to unnecessary concern among consumers since they lack information concerning the actual exposure. In this study, the exposure to pesticide residues through fruit and vegetable consumption is evaluated based on the 2008 surveillance data of the Belgian Federal Agency for the Safety of the Food Chain (FASFC). Results (deterministic and probabilistic approach) demonstrate that the chronic exposure of the adult population (>15 years) is generally under control, even at high or frequent consumption of fruit and vegetables. For most of the pesticide residues studied, the exposure is one hundred times lower than the ‘acceptable daily intake’ or ADI. With regard to children (2e5 years) who consume regularly or large amounts of fruit and vegetables, there are however, indications that for some pesticides the ADI can be exceeded. Nevertheless, due to the large uncertainty in these calculations, a more detailed study is required for this vulnerable group of consumers. In addition, it was demonstrated that washing and peeling of fruit and vegetables result in an exposure that is probably five to six times lower. [less ▲]

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See detailExposure to an organochlorine pesticide (chlordecone) and development of 18-month-old infants
Boucher, O; Simard, M.-N.; Muckle, G et al

in NeuroToxicology (2013), 35(1), 162-168

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See detailExposure to chlordecone and male fertility in Guadeloupe (French West Indies)
Multigner, L.; Kadhel, P.; Huc-Terki, F. et al

in Epidemiology (2006, November), 17(6, Suppl. S), 372

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See detailExposure to oestrogen prenatally does not interfere with the normal female-typical development of odour preferences
Bakker, Julie ULg; De Mees, C.; Szpirer, J. et al

in Journal of Neuroendocrinology (2007), 19(5), 329-334

The neural mechanisms controlling mate recognition and heterosexual partner preference are sexually differentiated by perinatal actions of sex steroid hormones. We previously showed that the most ... [more ▼]

The neural mechanisms controlling mate recognition and heterosexual partner preference are sexually differentiated by perinatal actions of sex steroid hormones. We previously showed that the most important action of oestrogen during prenatal development is to defeminise and, to some extent, masculinise brain and behaviour in mice. Female mice deficient in alpha-foetoprotein (AFP) due to a targeted mutation in the Afp gene (AFP-KO) do not show any female sexual behaviour when paired with an active male because they lack the protective action of AFP against maternal oestrogens. In the present study, we investigated whether odour preferences, another sexually differentiated trait in mice, are also defeminised and/or masculinised in AFP-KO females due to their prenatal exposure to oestrogens. AFP-KO females of two background strains (CD1 and C57Bl/6j) preferred to investigate male over female odours when given the choice between these two odour stimuli in a Y-maze, and thus remained very female-like in this regard. Thus, the absence of lordosis behaviour in these females cannot be explained by a reduced motivation of AFP-KO females to investigate male-derived odours. Furthermore, the presence of a strong male-directed odour preference in AFP-KO females suggests a postnatal contribution of oestrogens to the development of preferences to investigate opposite-sex odours. [less ▲]

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See detailExpresión de antígenos de rotavirus bovino en plantas de alfalfa transgénicas: su utilización como inmunógeno y/o agente antiviral
Mozgovoj, M.; Wigdorovitz, A.; Dus Santos, M.J. et al

Poster (2002, September 23)

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See detailExpresión de la glicoproteína gp53 del virus de la diarrea viral bovina en plantas transgénicas de alfalfa
Gómez, C.; Dus Santos, M.J.; Mozgovoj, M. et al

Poster (2002, September 23)

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See detailExpresión de la proteína p24 del Virus de la Leucosis Bovina en E. coli y su potencial utilización en pruebas de diagnostico
Gutiérrez, G.; Álvarez, I.; Rodriguez, Sabrina ULg et al

Poster (2004, November 14)

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See detailExpressing female fertility in the Walloon region of Belgium: how to do?
Vanderick, Sylvie ULg; Bastin, Catherine ULg; Gengler, Nicolas ULg

Conference (2009, August)

Since September 2007, the Walloon Region of Belgium has used a genetic evaluation system for pregnancy rate in Holsteins and has participated in 3 of the 5 MACE trait INTERBULL runs for female fertility ... [more ▼]

Since September 2007, the Walloon Region of Belgium has used a genetic evaluation system for pregnancy rate in Holsteins and has participated in 3 of the 5 MACE trait INTERBULL runs for female fertility. In order to define general way of female fertility expression, a principal component analysis was carried out on six published foreign female fertility indexes. Results of were used to compute a direct female fertility index with the INTERBULL international female fertility proofs available on the Walloon scale. An indirect female fertility index was also developed in order to increase reliability of young bulls. Approximate procedure based on selection index was used to combine both indexes in an overall index called combined female fertility index. This index was highly correlated with the direct female fertility index (.96) and the first principal component (.85), therefore it was considered as good expression of female fertility. Moreover, this allowed recovering 4,019 INTERBULL bulls with a publishable female fertility index. [less ▲]

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See detailExpressing female fertility in the Walloon region of Belgium: how to do?
Vanderick, Sylvie ULg; Bastin, Catherine ULg; Gengler, Nicolas ULg

in Interbull Bulletin (2009), 40

Since September 2007, the Walloon Region of Belgium has used a genetic evaluation system for pregnancy rate in Holsteins and has participated in 3 of the 5 MACE trait INTERBULL runs for female fertility ... [more ▼]

Since September 2007, the Walloon Region of Belgium has used a genetic evaluation system for pregnancy rate in Holsteins and has participated in 3 of the 5 MACE trait INTERBULL runs for female fertility. In order to define general way of female fertility expression, a principal component analysis was carried out on six published foreign female fertility indexes. Results of were used to compute a direct female fertility index with the INTERBULL international female fertility proofs available on the Walloon scale. An indirect female fertility index was also developed in order to increase reliability of young bulls. Approximate procedure based on selection index was used to combine both indexes in an overall index called combined female fertility index. This index was highly correlated with the direct female fertility index (.96) and the first principal component (.85), therefore it was considered as good expression of female fertility. Moreover, this allowed recovering 4,019 INTERBULL bulls with a publishable female fertility index. [less ▲]

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See detailExpression analyses identify MLL as a prominent target of 11q23 amplification and support an etiologic role for MLL gain of function in myeloid malignancies
Poppe, B.; Vandesompele, J.; Schoch, C. et al

in Blood (2004), 103(1), 229-235

MLL amplification was recently recognized as a recurrent aberration in acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS), associated with adverse prognosis and karyotype complexity. Here we ... [more ▼]

MLL amplification was recently recognized as a recurrent aberration in acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS), associated with adverse prognosis and karyotype complexity. Here we present detailed results of fluorescence in situ hybridization (FISH) and expression analyses of MLL and 5 selected 11q candidate oncogenes (CBL, DDX6, ETS1, FLI1, and PLZF) in 31 patient samples and one cell line with 11q23 gain. FISH analyses revealed that the 11q23 amplicon invariably encompassed MLL, DDX6, ETS1, and FLI1, whereas expression analyses identified MLL and DDX6 as the most differentially expressed genes among samples with and without 11q23 copy gain or amplification. In MLL-amplified samples, a significant transcriptional up-regulation of MEIS1, PROML1, ADAM10, NKG2D, and ITPA was noted. Further analyses, designed to elucidate a possible role of the 11q overexpressed genes (MLL, DDX6, FLI1, and ETS1) in unselected MDS and AML samples, revealed a significant upregulation of MLL in MDS. Our findings confirm the MLL gene as a prominent target of 11q23 amplification and provide further evidence for an etiologic role for MLL gain of function in myeloid malignancies. In addition, our results indicate that the transcriptional program associated with MLL rearrangements and MLL overexpression displays significant similarities. [less ▲]

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See detailExpression And Activity Of Antioxidant Enzymes During Potato Tuber Dormancy
Rojas-Beltran, Ja.; Dejaeghere, F.; Kotb, Ma. et al

in Potato Research (2000), 43(4),

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See detailExpression and function of DRC-1 antigen.
Bosseloir, A. L.; Antoine, Nadine ULg; Heinen, Ernst ULg et al

in Advances in Experimental Medicine and Biology (1994), 355

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See detailExpression and function of the collagen receptor GPVI during megakaryocyte maturation.
Lagrue-Lak-Hal, A. H.; Debili, N.; Kingbury, G. et al

in Journal of Biological Chemistry (2001), 276(18), 15316-25

In this report, the expression and function of the platelet collagen receptor glycoprotein VI (GPVI) were studied in human megakaryocytes during differentiation and maturation of mobilized blood and cord ... [more ▼]

In this report, the expression and function of the platelet collagen receptor glycoprotein VI (GPVI) were studied in human megakaryocytes during differentiation and maturation of mobilized blood and cord blood derived CD34(+) cells. By flow cytometry, using an anti-GPVI monoclonal antibody or convulxin, a GPVI-specific ligand, GPVI was detected only on CD41(+) cells including some CD41(+)/CD34(+) cells, suggesting expression at a stage of differentiation similar to CD41. These results were confirmed at the mRNA level using reverse transcription-polymerase chain reaction. GPVI expression was low during megakaryocytic differentiation but increased in the more mature megakaryocytes (CD41(high)). As in platelets, megakaryocyte GPVI associates with the Fc receptor gamma chain (FcRgamma). The FcR gamma chain was detected at the RNA and protein level at all stages of megakaryocyte maturation preceding the expression of GPVI. The other collagen receptor, alpha(2)beta(1) integrin (CD49b/CD29), had a pattern of expression similar to GPVI. Megakaryocytic GPVI was recognized as a 55-kDa protein by immunoblotting and ligand blotting, and thus it presented a slightly lower apparent molecular mass than platelet GPVI (58 kDa). Megakaryocytes began to adhere to immobilized convulxin via GPVI after only 8-10 days of culture, at a time when megakaryocytes were maturing. At this stage of maturation, they also adhered to immobilized collagen by alpha(2)beta(1) integrin-dependent and -independent mechanisms. Convulxin induced a very similar pattern of protein tyrosine phosphorylation in megakaryocytes and platelets including Syk, FcRgamma, and PLC(gamma)2. Our results showed that GPVI is expressed early during megakaryocytic differentiation but functionally allows megakaryocyte adherence to collagen only at late stages of differentiation when its expression increases. [less ▲]

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See detailExpression and functional properties of four slow skeletal troponin T isoforms in rat muscles
Kischel, Philippe ULg; Bastide, Bruno; Muller, Marc ULg et al

in American Journal of Physiology - Cell Physiology (2005), 289(2), 437-443

We investigated the expression and functional properties of slow skeletal troponin T(sTnT) isoforms in rat skeletal muscles. Four sTnT cDNAs were cloned from the slow soleus muscle. Three isoforms were ... [more ▼]

We investigated the expression and functional properties of slow skeletal troponin T(sTnT) isoforms in rat skeletal muscles. Four sTnT cDNAs were cloned from the slow soleus muscle. Three isoforms were found to be similar to sTnT1, sTnT2, and sTnT3 isoforms described in mouse muscles. A new rat isoform, with a molecular weight slightly higher than that of sTnT3, was discovered. This fourth isoform had never been detected previously in any skeletal muscle and was therefore called sTnTx. From both expression pattern and functional measurements, it appears that sTnT isoforms can be separated into two classes, high-molecular-weight ( sTnT1, sTnT2) and low-molecular-weight ( sTnTx, sTnT3) isoforms. By comparison to the apparent migration pattern of the four recombinant sTnT isoforms, the newly described low-molecular-weight sTnTx isoform appeared predominantly and typically expressed in fast skeletal muscles, whereas the higher-molecular-weight isoforms were more abundant in slow soleus muscle. The relative proportion of the sTnT isoforms in the soleus was not modified after exposure to hindlimb unloading (HU), known to induce a functional atrophy and a slow-to-fast isoform transition of several myofibrillar proteins. Functional data gathered from replacement of endogenous troponin complexes in skinned muscle fibers showed that the sTnT isoforms modified the Ca2+ activation characteristics of single skeletal muscle fibers, with sTnT2 and sTnT1 conferring a similar increase in Ca2+ affinity higher than that caused by low-molecular-weight isoforms sTnTx and sTnT3. Thus we show for the first time the presence of sTnT in fast muscle fibers, and our data show that the changes in neuromuscular activity on HU are insufficient to alter the sTnT expression pattern. [less ▲]

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See detailExpression and hormonal regulation of the rat growth hormone gene in transfected mouse L cells
Karin, M.; Eberhardt, N. L.; Mellon, S. H. et al

in DNA (1984), 3(2), 147-55

Expression of the rat growth hormone (rGH) gene in the pituitary and in cultured pituitary tumor cells is regulated by glucocorticoid hormones. After co-transfer of cloned DNA containing the rGH gene with ... [more ▼]

Expression of the rat growth hormone (rGH) gene in the pituitary and in cultured pituitary tumor cells is regulated by glucocorticoid hormones. After co-transfer of cloned DNA containing the rGH gene with the herpes simplex virus (HSV) thymidine kinase (tk) gene into mouse Ltk- cells, rGH gene transcripts were detected in eight of fifteen tk+ cell lines. However, in all eight clones, the predominant rGH gene transcript was only about 0.75 kb, 0.3 kb shorter than pituitary rGH mRNA. The 0.75-kb transcripts, examined from one clone, L-rGH-4, lacked sequences derived from exons 1 and 2 of the rGH gene. Although transcripts larger than 0.75 kb were detected, the normal 2.2-kb rGH gene primary transcript was present only at very low levels. Nuclease mapping studies also failed to reveal transcripts initiated at the normal rGH gene promoter, but instead revealed transcripts with 5' termini arising within intron B of the gene. These data suggest either that transcripts arise from internal promoters within the rGH gene or that a transcript initiated upstream from the normal promoter was processed abnormally. Dexamethasone increased the levels of the 0.75-kb rGH gene transcripts about fourfold in all eight clones expressing rGH mRNA. These data suggest that structural elements important for glucocorticoid-mediated influences on regulation of GH gene expression are contained within the transferred rGH gene fragment and can function even when the normal rGH gene promoter is not used and the pattern of expression is grossly abnormal. [less ▲]

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