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See detailCould indolic glucosinolates root profiling be correlated to Brassica napus L. cadmium stress tolerance?
Durenne, Bastien ULiege; Blondel, Alodie; Druart, Philippe et al

Poster (2017, September)

Glucosinolates profiling among Brassicaceae and Brassica napus L. especially is largely studied regarding biotic stress. Nevertheless literature review could lead to suppose that theses secondary ... [more ▼]

Glucosinolates profiling among Brassicaceae and Brassica napus L. especially is largely studied regarding biotic stress. Nevertheless literature review could lead to suppose that theses secondary metabolites hugely produced within Brassicaceae family can interact in regards to cadmium stress as well. Sulfate primary metabolism plays an important role to Brassica napus L. cadmium stress tolerance and glucosinolates could serve as sulfate pool under such stress conditions. We describe here an in vitro experiment performed under sterile and controlled conditions showing the relationship between Brassica napus L. var. Es Astrid tolerance to a low concentration of cadmium and a decrease of a major indolic glucosinolates produced by the roots of this variety. Phenotyping results obtained from these cadmium stress conditions confirm also that Brassica napus L. remains a highly cadmium tolerant species probably due to glucosinolates root metabolism particularly. [less ▲]

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See detailComparaison entre infiltrations de plasma riche en plaquettes et d’acide hyaluronique pour le traitement des tendinopathies patellaires
Kaux, Jean-François ULiege; Roberjot, Mathieu; Samson, Antoine

in 10ème Congrès Commun SFMES-SFTS (2017, September)

Introduction : Le traitement des tendinopathies patellaires reste difficile. C’est la raison pour laquelle de nouveaux traitements ont été développés, parmi lesquels les injections de plasma riche en ... [more ▼]

Introduction : Le traitement des tendinopathies patellaires reste difficile. C’est la raison pour laquelle de nouveaux traitements ont été développés, parmi lesquels les injections de plasma riche en plaquettes (PRP) ou d’acide hyaluronique (AH). Certaines séries cliniques ont précédemment évalué l’effet du PRP dans le traitement des tendinopathies patellaires proximales. Une revue systématique récente a conclu que les PRP pouvait être recommandé comme traitement dans cette indication. Récemment, l’AH en injection a été proposé comme traitement des tendinopathies. Certaines études fondamentales montrent des résultats encourageants sur la capacité de l’AH à promouvoir le glissement du tendon, de réduire les adhérences et améliorer son organisation architecturale. Quelques observations cliniques confirment également son impact sur la douleur et la fonction de patients avec tendinopathies. Méthodes : Trente-trois sportifs avec tendinopathies patellaires proximales non soulagés après plus de trois mois de traitements rééducatif classique ont été inclus dans l’étude. Dix-huit d'entre eux (groupe 1) ont reçu une injection de PRP pauvre en leucocytes (obtenu à l’aide d’un appareil d’aphérèse) et 15 autres sujets (groupe 2) ont bénéficié de 2 injections d’AH à 1 semaine d’intervalle; les 2 groupes ont bénéficié d’une rééducation standardisée post-infiltration. Concernant le suivi de la pathologie, une évaluation de la douleur par une échelle visuelle analogique (EVA), des scores algo-fonctionnels (IKDC, VISA-P), un algomètre de pression, un test isocinétique (associé à une EVA)) ainsi qu’une échographie du tendon patellaire (US) ont été réalisés à 3 reprises (avant injection, après 6 semaines, 3 mois après les injections). Résultats : Les résultats de l’EVA (p < 0,01), de l’algomètre de pression (p < 0,01), les scores IKDC (p < 0,01) et VISA-P (p < 0,01) montrent une amélioration significative dans les deux groupes, mais pas pour les résultats US. Pour le groupe 1, les tests isocinétiques montrent des résultats significatifs pour les ischio-jambiers à C60 °/ s, avec une amélioration de son couple de pointe maximale (p = 0, 01) pour le membre pathologique et une amélioration des différences bilatérales (p = 0,0002). Pour le groupe 2, l’amélioration du couple de pointe maximale du quadriceps à C240 ° /s est significative (p < 0,01) pour le genou pathologique après les injections après 6 semaines seulement. L’EVA associé aux tests isocinétiques diminue considérablement pour tous les modes de contraction au terme des trois mois d’études. Conclusions : Les infiltrations de PRP et d’HA peuvent toutes les 2 améliorer les symptômes de tendinopathie patellaire proximale, même si les résultats sont légèrement meilleurs au sein du groupe PRP. [less ▲]

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See detailA Techno-Functional Study of the Aterian Technocomplex at Ifri n'Ammar
Tomasso, Sonja ULiege; Rots, Veerle ULiege

Poster (2017, September)

The tanged tools of the Aterian technocomplex have generally formed the central point in debates on early indications of hafting (Clark, 1970). However, in order to obtain a true understanding of the ... [more ▼]

The tanged tools of the Aterian technocomplex have generally formed the central point in debates on early indications of hafting (Clark, 1970). However, in order to obtain a true understanding of the specificity of this technocomplex, it is essential to study entire assemblages and understand the characteristics of and the relation between the tanged and non-tanged tool component, both on a technological and on a functional level. Until today no functional studies were yet undertaken on complete Aterian tool assemblages. We present the results of the technological and use-wear analysis of the non-tanged tool component of the Aterian assemblage of Ifri n’Ammar (Morocco) and focus on aspects of tool use and hafting. The rock shelter of Ifri n’Ammar, located in the eastern Moroccan Rif, is known for its rich stratified lithic assemblages, dating to 83 ± 6 ka to 130 ± 8 ka for the upper levels and to 145 ± 9 to 171 ± 12 ka for the lower levels (Richter et al., 2010). In the framework of the recently published dating results of other maghrebian sites (Dörschner et al., 2016), Ifri n’Ammar takes an important position within discussions on the chronological attribution of the Aterian: a large time span extended from MIS 6 to MIS 3 [3]. The sequence has provided a large diversity of tool morphologies which offer the possibility to contribute to the discussion about use and hafting of tanged and non-tanged tools. Aside from the tanged tools and foliates, the material from comparable Aterian assemblages can be defined by the presence of side scrapers, end-scrapers, denticulates, such as blades, bladelets or Levallois cores (Bouzouggar and Barton, 2012). Despite the frequent presence of post-depositional surface alterations, reliable functional interpretations could be identified on a large number of tools. Previous studies had already confirmed that the tanged tools were used while hafted for hunting and animal processing activities (Tomasso and Rots, 2017). Also a variety of tasks and gestures could be identified on the non-tanged tools based on a combination of diagnostic macro- and microscopic wear traces. Interestingly, also the non-tanged tool component shows evidence of hafting, indicating the existence of a variety in hafting techniques. The integration of the functional results on the non-tanged and tanged tool component allows addressing questions on tool variability, diversity in tool morphology and site function. We argue that the results highlight the importance of the site for improving our understanding of the North African MSA. [less ▲]

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See detailGenuinely entangled symmetric states with no N-partite correlations
Designolle; Giraud, Olivier; Martin, John ULiege

in Physical Review A (2017), 96

We investigate genuinely entangled N-qubit states with no N-partite correlations in the case of symmetric states. Using a tensor representation for mixed symmetric states, we obtain a simple ... [more ▼]

We investigate genuinely entangled N-qubit states with no N-partite correlations in the case of symmetric states. Using a tensor representation for mixed symmetric states, we obtain a simple characterization of the absence of N-partite correlations. We show that symmetric states with no N-partite correlations cannot exist for an even number of qubits. We fully identify the set of genuinely entangled symmetric states with no N-partite correlations in the case of three qubits, and in the case of rank-2 states. We present a general procedure to construct families for an arbitrary odd number of qubits. [less ▲]

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See detailWhy Customers do not Participate in Collaborative Consumption?
Zwienenberg, Thijs; Hazee, Simon ULiege; Van Vaerenbergh, Yves et al

Scientific conference (2017, September)

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See detailUp-scalable spray-drying synthesis of Na2Ti3O7
Piffet, Caroline ULiege; Vertruyen, Bénédicte ULiege; Mahmoud, Abdelfattah ULiege et al

Poster (2017, September)

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See detailStatistiques et méthodes de recherche (Biostatistiques)
Vander Haegen, Marie ULiege

Learning material (2017)

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See detailCrossoads ( septembre 2017) - chaque mercredi de 18h à20h - rediffusion: samedis de 22h à minuit
Sacré, Robert ULiege

Diverse speeche and writing (2017)

Programme radio hebdomadaire consacré aux musiques africaines-américaines ; streaming : www.equinoxefm.be ; podcasts www.mixcloud.com/robertsacre9

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See detailTraduction de l'article de Scott M. Bock : CLASSIE BALLOU "Classy" Swamp Blues
Sacré, Robert ULiege

in ABS Magazine (2017), (ABS MAG # 57),

Biographie de Classie Ballou, un musicien noir de Louisiane ; photos

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See detailVariétés - 1. Froment d'hiver
Meza Morales, Walter ULiege; Dumont, Benjamin ULiege; Jacquemin, Guillaume et al

in Watillon, Bernard; Bodson, Bernard (Eds.) Livre Blanc Céréales (2017, September)

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See detailDO MESENCHYMAL STROMAL CELLS PROMOTE HLA SPECIFIC ANTIBODIES FORMATION AFTER INFUSION IN LIVER TRANSPLANT RECIPIENTS?
VANDERMEULEN, Morgan ULiege; MAGGIPINTO, Gianni ULiege; JOURET, François ULiege et al

in Transplant International (2017, September), 30(S2), 548051

Background: Mesenchymal stromal cells (MSC) immunogenicity is debated. We recently published a prospective, controlled, phase I study evaluating a single administration of third-party MSC in 10 liver ... [more ▼]

Background: Mesenchymal stromal cells (MSC) immunogenicity is debated. We recently published a prospective, controlled, phase I study evaluating a single administration of third-party MSC in 10 liver transplant recipients (LTR). Here, we focus on the development of antibodies (Ab) against MSC-donor HLA (MSCDSA) in LTR following MSC infusion. Methods: Ten LTR under standard immunosuppression received 3rd-party unrelated MSC on postoperative day 3, and were prospectively compared to 10 control LTR. Recipients and donor of either liver or MSC were genotyped for HLA A/B/C/DR/DQ. Recipients were tested for HLA Ab before and 1, 3 and 6 months after transplant by Luminex". Ab were considered as positive in case of MFI >1500 and in accordance with the manufacturer’s recommendations. Results: In MSC-treated group, 2 patients showed pre-transplant MSCDSA. During follow-up, MSCDSA were detected in 6 additional patients who had received multiple red blood cell allo-transfusions before and/or rapidly after transplant. These patients also developed Ab against various MSC-unrelatedHLA. Two patients did not develop any MSCDSA throughout the follow-up, and one of them did not receive any allo-transfusion. MFI of detected MSCDSA were not significantly different from MFI of other detected HLA Ab. In control group, 3 patients were sensitized pre-transplant, and 6 patients developed de novo multiple HLA Ab. Four of these had received multiple allo-transfusions. Conclusion: In the large pool of HLA Ab identified in LTR post transplant, the detection of MSCDSA is most likely caused by allo-transfusions rather than related to MSC infusion. Further studies are required to confirm that MSC are “immune privileged”. [less ▲]

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See detailAdministration of mesenchymal stromal cells before renal ischemia/reperfusion attenuates kidney injury and modulates renal lipid metabolism in rats
ERPICUM, Pauline ULiege; Rowart, Pascal ULiege; POMA, Laurence ULiege et al

in Transplant International (2017, September), 30(S2), 9004

Background: Mesenchymal stromal cells (MSC) have been demonstrated to attenuate renal ischemia/reperfusion (I/R) damage in rodents. The mecha- nisms of such nephroprotection remain unclear. Materials and ... [more ▼]

Background: Mesenchymal stromal cells (MSC) have been demonstrated to attenuate renal ischemia/reperfusion (I/R) damage in rodents. The mecha- nisms of such nephroprotection remain unclear. Materials and Methods: Male Lewis rats aged of 8–10 weeks received tail i.v injection of 1.5x106 MSC in 1 mL saline (MSCD-7, n = 11) or saline alone (SD- 7, n = 6) 7 days before renal I/R. Left renal ischemia (by clamping the renal pedicle) lasted 45 min. Right nephrectomy was simultaneously performed. Blood sample was collected from inferior vena cava 48 h post reperfusion. Renal function was assessed by measuring serum creatinine (SCr) levels. Expressions of inflammatory and apoptotic markers by real-time (RT)-qPCR were comparatively quantified. High-throughput RNA sequencing was applied to MSCD-7 vs. SD-7 non-ischemic right kidneys. Relevant pathways were detected using an Over-Representation Analysis with WebGestalt, and confirmed by RT-qPCR. Results: Scr levels reached 1.4 ` 0.7 vs. 2.4 ` 0.8 mg/dL in MSCD-7 vs. SD-7 group (p < 0.05). MSC infusion significantly reduced mRNA expression of Casp3, Hsp 70, Kim-1, Mcp-1 and Il-6 and increased mRNA expression of Bcl compared to saline. Among 25 908 genes, 748 were identified as significantly differentially expressed (False Discovery Rate (FDR), <0.05) between MSCD-7 and SD-7 non-ischemic kidneys. Among the most affected metabolic pathways, renal lipid metabolism was significantly altered, with down-regulation of fatty acid biosynthesis and an up-regulation of PPARa pathway in MSCD-7 vs. SD-7 groups. By immunoblotting, PPARa and phosphorylated-PPARa were significantly increased in MSCD-7 vs. SD-7 kidneys, in both non-ischemic and ischemic conditions. Moreover, levels of malondialdehyde-derived lipid peroxidation products were decreased in MSCD-7 ischemic kidneys in comparison to SD-7 ischemic kidneys. Conclusion: MSC infusion at day 7 prior injury critically impacts renal lipid metabolism, which may condition kidney parenchyma against I/R. [less ▲]

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See detailSurgical factors and not donor type per se are risk factors for acute kidney injury after liver transplantation
MEURISSE, Nicolas ULiege; Smet, Heloise ULiege; LEDOUX, Didier ULiege et al

in Transplant International (2017, September), 30(S2), 106-107298

Background: Because Liver Transplantation (LT) using DCD has been shown to be risk factor for Acute Kidney Injury (AKI), we reviewed results at our center. Patients and Methods: AKI was defined as ... [more ▼]

Background: Because Liver Transplantation (LT) using DCD has been shown to be risk factor for Acute Kidney Injury (AKI), we reviewed results at our center. Patients and Methods: AKI was defined as decrease >50% eGFR (CKD- EPI) within 48 h postreperfusion (RIFLE). 106 first LT-only [63 DBD (59%) & 43 DCD (41%)] without pre-existing renal dysfunction (eGFR>60 ml/min/1,73 m2, no renal replacement therapy) were performed from 2012 to 2016. Incidence/ risk factors for AKI were assessed. Data: mean (IQR). Results: Incidence of AKI was 33% (35/106). AKI-patients were more hospitalized before LT [9/16 (56%) vs 26/89 (29%), p < 0.01], with higher labMELD [16 (10–23) vs 12 (8–16), p = 0.01]. Donor type [11/43 DCD (25%) vs 24/63 DBD (39%), p = 0.16], donor hepatectomy time [38 min (26–50) vs 35 (25–42), p = 0.37], cold ischemic time [6 h (4.1–7.6) vs 5.1 (3.4–6.4), p = 0.21], time for anastomosis [44 min (35–49) vs 42 (38–48), p = 0.53], postreperfusion syndrome [19/46 (42%) vs 27/46 (58%), p = 0.07] were similar between AKI & non-AKI groups. AKI was more frequent if lungs were procured first in the donor [23/48 (48%) vs 11/56 (19%), p < 0.01]. Recipient surgery was longer in the AKI group [5.2 h (3.9–6.3) vs 4.3 (3.4–4.8), p < 0.01]. AKI was more frequent if platelets were transfused during LT [19/42 (56%) vs 15/59 (44%), p = 0.03]. Blood volume administrated from the cellsaver was larger in the AKI-patients [834 ml (300–750) vs 408 (0–550), p = 0.03]. AKI-patients have a higher peak AST [1235 U/L (310–1858) vs 812 (429–978), p = 0.04]. Haemoglobin [8.8 g/dl (7.4–9.9) vs 10 (8.5–11.7)] & platelets [69x103 (50 9 103–87 9 103) vs 89 9 103 (50 9 103–118 9 103)] at day 1 postreperfusion were significantly lower if AKI occurred. After multivariable analysis, thoracic procurement before liver [OR 5.75 (1.76–18.77), p = 0.004] & recipient surgery duration [OR 1.64 (1.15–2.32), p = 0.006] were only risk factors for AKI. Conclusion: Rapid donor/recipient surgery and not donor type are key factors to prevent AKI-post-LT. [less ▲]

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See detailRecycling of silicon used in solar cells to prepare silicon-carbon composite powders as anode material in li-ion batteries
Eshraghi, Nicolas ULiege; Mahmoud, Abdelfattah ULiege; Berardo, Loris ULiege et al

Poster (2017, September)

Currently, silicon (Si) coming from the recycling of solar cells is a non-valued fraction. The principal aim of this work is the development of silicon recovered during the dismantling of solar panels as ... [more ▼]

Currently, silicon (Si) coming from the recycling of solar cells is a non-valued fraction. The principal aim of this work is the development of silicon recovered during the dismantling of solar panels as an electrode material for lithium or sodium batteries. The main technological challenge associated with the use of silicon in this type of application is to control the volume expansion during charge/discharge cycles. This problem could be solved through the synthesis of Silicon/carbon composites in which the size of the silicon particles and their dispersion must be controlled [1–4]. We develop a carbon matrix consisting of graphene or carbon nanotubes (CNT) that allow the incorporation of silicon particles coated with a carbon layer (Si@C/C). The process is divided in two main steps. In the first step, Si wafer pieces are ground to prepare Si powder and then a mixed suspension of Si and an organic carbon source (Acetic acid, Ascorbic acid or Lactose) is spray-dried followed by heat treatment to generate the coverage of silicon particles with carbon (Si@C). In the second step, aqueous suspension of Si@C and graphene/CNT is spray dried and heat treated to obtain the final composite structure. The morphology of composite materials is analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Electrochemical performance of Si@C/C composites are characterized by galvanostatic charge-discharge cycling and electrochemical impedance spectroscopy (EIS). [less ▲]

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See detailL'(ir)responsabilité du pouvoir judiciaire : fondement et mise à l'épreuve de l'immunité judiciaire en droits québécois et belge
Bouhon, Frédéric ULiege; Lacroix, Mariève

in Revue de Droit International et de Droit Comparé (2017), 2017/3

Ce long article compare les régimes juridiques belge et québécois sur la question de la responsabilité civile pour les fautes commises par les juges dans l'exercice du pouvoir judiciaire. Bien que les ... [more ▼]

Ce long article compare les régimes juridiques belge et québécois sur la question de la responsabilité civile pour les fautes commises par les juges dans l'exercice du pouvoir judiciaire. Bien que les solutions retenues de part et d’autre de l’Atlantique semblent divergentes a priori – absolutisme de l’immunité du juge au Québec et relativisation de celle-ci en Belgique –, un examen plus approfondi révèle que les incidences pratiques ne sont pas aussi radicalement opposées. Certes, l’État belge peut engager sa responsabilité civile en présence d’une faute du juge, ce qui ne saurait être admis au Québec , mais les modalités de l’action civile que la jurisprudence belge a retenues (spécialement la condition de recevabilité et la notion de faute caractérisée) limitent fortement l’ampleur du contentieux dans ce domaine. Par ailleurs, au Québec, on relève un infléchissement – purement théorique, car aucun cas concret où la responsabilité civile du juge a été retenue n’existe à l’heure actuelle – du principe de l’immunité absolue du juge dans le cadre de sa responsabilité civile personnelle, lorsqu’il agit sans compétence, tout en sachant ne pas avoir compétence d’agir ainsi. [less ▲]

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See detailPreparation and characterization of Silicon-carbon composite powders using recycled Silicon from solar cells as anode material in Li-ion batteries
Eshraghi, Nicolas ULiege; Mahmoud, Abdelfattah ULiege; Berardo, Loris ULiege et al

Poster (2017, September)

Currently, silicon (Si) coming from the recycling of solar cells is a non-valued fraction. The principal aim of this work is the development of silicon recovered during the dismantling of solar panels as ... [more ▼]

Currently, silicon (Si) coming from the recycling of solar cells is a non-valued fraction. The principal aim of this work is the development of silicon recovered during the dismantling of solar panels as electrode material for Li-ion batteries. The main technological challenge associated with the use of silicon in this type of application is to control the volume expansion during charge/discharge cycles. This drawback could be avoided through the formation of Silicon/carbon composites in which the size of the silicon particles and their dispersion must be controlled. In this research, we develop a carbon matrix consisting of graphene or carbon nanotubes (CNT) that allow the incorporation of silicon particles coated with a carbon layer (Si@C/C). The process is divided in two main steps : I) the grinding of leached Si wafer pieces in order to extract pure Si powder and then a mixed aqueous suspension of this recycled Si and an organic carbon source (Acetic acid, Ascorbic acid or Lactose) is spray-dried followed by heat treatment to generate the coating of silicon particles with carbon (Si@C). Then, II) aqueous suspension of Si@C and graphene/CNT is spray dried and calcined to obtain the final composite structure (Si@C/C). The morphology of composite materials is analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Electrochemical performance of Si@C/C composites are characterized by galvanostatic charge-discharge cycling and electrochemical impedance spectroscopy (EIS). [less ▲]

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See detailReliability of a standardized protocol for bedside quadriceps strength measurement in critically ill patients
ROUSSEAU, Anne-Françoise ULiege; Freycenon, Gaëlle ULiege; KELLENS, Isabelle ULiege et al

in Intensive Care Medicine Experimental (2017, September), 5(S2), 327

Detailed reference viewed: 49 (11 ULiège)