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See detailSIRT1-deficient mice exhibit an altered cartilage phenotype
Gabay, Odile; Sanchez, Christelle ULg; Dvir-Ginzberg, Mona et al

in Arthritis and Rheumatism (2011), 63(10), 702

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See detailLevels of C-reactive protein are associated with response to infliximab therapy in patients with Crohn's disease.
Jurgens, Matthias; Mahachie John, Jestinah ULg; Cleynen, Isabelle et al

in Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of The American Gastroenterological Association (2011), 9(5), 421-71

BACKGROUND & AIMS: Infliximab is an antibody against tumor necrosis factor-alpha that is used to treat patients with moderate to severe Crohn's disease (CD). C-reactive protein (CRP) is a marker used to ... [more ▼]

BACKGROUND & AIMS: Infliximab is an antibody against tumor necrosis factor-alpha that is used to treat patients with moderate to severe Crohn's disease (CD). C-reactive protein (CRP) is a marker used to identify and follow individuals with CD. We analyzed changes in levels of CRP in a large cohort of patients with CD undergoing treatment with infliximab. METHODS: Serial levels of CRP were analyzed in 718 CD patients. Blood was collected before each infusion; a total of 8845 CRP levels were available for analysis. The correlations between CRP levels and need for dose adjustment, outcomes, and mucosal healing (based on endoscopic analysis of 253 patients) were evaluated. Therapy adjustment was considered successful if therapy continued without need for change. Subgroup analysis was performed by using data from 268 patients who received 8 weeks of maintenance therapy. RESULTS: More patients with high baseline levels of CRP responded to infliximab than patients with normal levels (90.8% vs 82.6%; P = .014). Early normalization of CRP levels correlated with sustained long-term response (P < .001). CRP levels remained significantly higher among patients who lost their response to infliximab, compared with those with a sustained response (P = .001). At time of loss of response, CRP levels were significantly increased (median, 11.2 mg/L) and did not return to baseline levels (median, 18.2 mg/L; P = .039). CRP correlated with mucosal healing (P = .033). CONCLUSIONS: CRP is a good marker of disease activity in patients treated with infliximab. Increased levels of CRP indicate mucosal inflammation and a likelihood of clinical relapse. [less ▲]

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See detailRelaxed skin tension lines imaging.
CAUCANAS, Marie ULg; PIERARD, Gérald ULg; FRANCHIMONT, Claudine ULg

in Treatment Strategies. Dermatology (2011)

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See detailAssessment of Crohn’s disease activity by FDG-PET/CT through a novel quantitative approach.
SABOURY, B.; HUSTINX, Roland ULg; BROTHERS, B. et al

in Journal of Nuclear Medicine (The) (2011), 52(SUPPL), 284

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See detailFibulin-3 fragments (FIB3-1 and FIB3-2) are potential new biomarkers for the diagnosis of osteoarthritis
Gharbi, M; Dubuc, JE; Deberg, Michelle ULg et al

in Annals of the Rheumatic Diseases (2011), 70(Suppl 3), 354

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See detailLeukemic cell xenograft in zebrafish embryo for investigating drug efficacy.
Pruvot, Benoist ULg; Jacquel, Arnaud; Droin, Nathalie et al

in Haematologica (2011), 96(4), 612-6

Zebrafish were proposed as an alternative to mammalian models to assess the efficacy and toxicity of antileukemic drugs. Due to the limited number of transgenic zebrafish leukemia models, we explored ... [more ▼]

Zebrafish were proposed as an alternative to mammalian models to assess the efficacy and toxicity of antileukemic drugs. Due to the limited number of transgenic zebrafish leukemia models, we explored human leukemic cell xenograft in zebrafish embryos. Human leukemic cell lines and blast cells sorted from patients with acute myelogenous leukemia were injected 48 hours post-fertilization and remained in the circulation of zebrafish embryos for several days without affecting their development. Imatinib and oxaphorines did not demonstrate any toxicity on normal zebrafish embryos and decreased the leukemic burden in animals xenografted with sensitive leukemic cell lines. Two other molecules, all-trans retinoic acid and the translation inhibitor 4EGI-1, demonstrated teratogenic effects at concentrations shown to be efficient in vitro, which precluded investigation of their antileukemic activity in such models. Altogether, xenografted leukemic cells in zebrafish embryos are a pharmacologically relevant model for screening non-teratogenic drugs. [less ▲]

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See detailDensity of states of chaotic Andreev billiards
Kuipers, Jack; Engl, Thomas; Berkolaiko, Gregory et al

in PHYSICAL REVIEW B (2011), 83(19), 195316-21

Quantum cavities or dots have markedly different properties depending on whether their classical counterparts are chaotic or not. Connecting a superconductor to such a cavity leads to notable proximity ... [more ▼]

Quantum cavities or dots have markedly different properties depending on whether their classical counterparts are chaotic or not. Connecting a superconductor to such a cavity leads to notable proximity effects, particularly the appearance, predicted by random matrix theory, of a hard gap in the excitation spectrum of quantum chaotic systems. Andreev billiards are interesting examples of such structures built with superconductors connected to a ballistic normal metal billiard since each time an electron hits the superconducting part it is retroreflected as a hole (and vice versa). Using a semiclassical framework for systems with chaotic dynamics, we show how this reflection, along with the interference due to subtle correlations between the classical paths of electrons and holes inside the system, is ultimately responsible for the gap formation. The treatment can be extended to include the effects of a symmetry-breaking magnetic field in the normal part of the billiard or an Andreev billiard connected to two phase-shifted superconductors. Therefore, we are able to see how these effects can remold and eventually suppress the gap. Furthermore, the semiclassical framework is able to cover the effect of a finite Ehrenfest time, which also causes the gap to shrink. However, for intermediate values this leads to the appearance of a second hard gap-a clear signature of the Ehrenfest time. [less ▲]

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See detailAnalyse des pigments des dessins pariétaux de la grotte Chauvet à Vallon-Pont-d'Arc
Laval, Eric; Salomon, Hélène ULg; Vignaud, Colette et al

Conference (2011)

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See detailThe use of micro-CT to correlate in-vitro cell behaviour with the surface roughness of Ti6Al4V scaffolds for tissue engineering
Pyka, Grzegorz; Kerckhofs, Greet ULg; Chai, Yoke Chin et al

in Abstract book SkyScan User Meeting 2011 (2011)

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See detailA computational solid and fluid mechanical analysis of CAD-versus micro-CT-based models of regular Ti6Al4V scaffolds for bone tissue engineering
Truscello, Silvia; Kerckhofs, Greet ULg; Moesen, Maarten et al

in Histology and Histopathology (2011)

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See detailInventaire des archives de la Société Cockerill Sambre (Groupe Arcelor). Siège de Seraing (1806-2005)
Delvaux, Anne-Catherine ULg

Book published by Archives générales du Royaume (2011)

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See detailAtomic oxygen distributions in the Venus thermosphere: Comparisons between Venus Express observations and global model simulations
Brecht, A.; Bougher, S. W.; Gérard, Jean-Claude ULg et al

in Icarus: International Journal of Solar System Studies (2011)

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See detailEvolution and predictive factors of relapse in ulcerative colitis patients treated with mesalazine after a first course of corticosteroids.
Bello, C.; Belaiche, Jacques ULg; Louis, Edouard ULg et al

in Journal of Crohn's & colitis (2011), 5(3), 196-202

INTRODUCTION: Mesalazine remains the first line treatment for the induction and the maintenance of remission in mild to moderate ulcerative colitis (UC). Its efficacy as a maintenance treatment after a ... [more ▼]

INTRODUCTION: Mesalazine remains the first line treatment for the induction and the maintenance of remission in mild to moderate ulcerative colitis (UC). Its efficacy as a maintenance treatment after a first flare treated with corticosteroids has not been specifically studied. The aims of our work were to study a cohort of UC patients treated with mesalazine after a course of oral systemic corticosteroids and to identify predictive factors of relapse and of colectomy. MATERIAL AND METHOD: We studied retrospectively a cohort of 143 UC patients, who never received immunosuppressive drugs, and treated for the first time with oral corticosteroids for a flare. Among patients responding to corticosteroids, we studied the group treated by mesalazine after the flare. RESULTS: Fifty% (n=52) achieved a complete clinical remission with steroid weaning. In this group, 67% (n=35) received oral mesalazine. Seventy-five % of patients treated by mesalazine relapsed (median 29 months, range: 1-156). Fourteen % required a colectomy (median 11 months, range: 1-24). Kaplan Meier curve showed a relapse rate and a colectomy rate over one year of 26% and 11% respectively. In multivariate analysis, male gender and short duration of disease were predictive factors of the time-to-relapse. No factor was predictive of time-to-colectomy. CONCLUSION: Maintenance efficacy of mesalazine over one year after a first course of corticosteroids for a disease flare is reasonably high. The longer-term relapse rate becomes higher in male patients with a short disease duration. An immunosuppressive treatment could be discussed in case of further relapse despite improved medication-adherence. Medication-adherence should first be assessed and promoted. An immunosuppressive treatment could be discussed in case of further relapse despite improved medication-adherence. [less ▲]

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See detailFluorescent microparticle incorporation in chondrogenic cell aggregates to monitor local oxygen tension
Lambrechts, Dennis; Kerckhofs, Greet ULg; Roberts, Scott et al

in Histology and Histopathology (2011)

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See detailCou de pied douloureux de l'enfant sportif
Kaux, Jean-François ULg

Learning material (2011)

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