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See detailVitamine D2 ou vitamine D3?
Mistretta, Virginie ULg; Delanaye, Pierre ULg; Chapelle, Jean-Paul ULg et al

in Revue de Médecine Interne (2008), 29(10), 815-20

PURPOSE: Nearly one billion people around the world are deficient in vitamin D and need to be supplemented. Vitamin D is available in medicines and fortified foods. It is available in two forms: vitamin ... [more ▼]

PURPOSE: Nearly one billion people around the world are deficient in vitamin D and need to be supplemented. Vitamin D is available in medicines and fortified foods. It is available in two forms: vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). KEY POINTS: The pharmacopeiae consider these steroid hormones as equivalent and interchangeable. However, several studies have showed that serum level of 25(OH)D is increased more effectively with vitamin D3 than vitamin D2. Vitamin D2 has shorter plasma half-life and a lower affinity for the vitamin D binding protein, the hepatic vitamin D hydroxylase and the vitamin D receptor. CONCLUSION: Vitamin D2 should not be regarded anymore as suitable for supplementation or fortification. Currently though, it is still the most used in some countries such as Portugal and Australia. [less ▲]

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See detailLa carence en vitamine d chez les femmes enceintes en region liegeoise: un probleme meconnu.
Cavalier, Etienne ULg; Delanaye, Pierre ULg; Morreale, Alessandro et al

in Revue Médicale de Liège (2008), 63(2), 87-91

We have evaluated the prevalence of the 25-hydroxy vitamin D (25VTD) deficiency in recently pregnant women and new mothers in the area of Liege, Belgium. The study took place in November 2006. Twenty four ... [more ▼]

We have evaluated the prevalence of the 25-hydroxy vitamin D (25VTD) deficiency in recently pregnant women and new mothers in the area of Liege, Belgium. The study took place in November 2006. Twenty four women who underwent a positive pregnancy test and 65 new mothers were enrolled. The level of 25VTD did not differ between the two groups. Only 12% of the pregnant women and 14% of the new mothers (>12 ng/ml) had an optimal level of 25VTD (>30 ng/ ml). We also observed a severe 25VTD deficiency in 21% of pregnant women and 32% of new mothers. Our results showed that more than 80% of pregnant women and new mothers in the area of Liege presented a deficiency in 25VTD. In Belgium, daily vitamin supplementation of pregnant women is common, but the level of vitamin D3 concentration range from 10 microg (400 UI) to zero microg. In our area, vitamin D production in the skin is not always important enough to achieve optimal levels. Our data show that vitamin D supplementation of pregnant women is not enough and that 25VTD deficiency is not diagnosed in this high-risk population. Children born from deficient mothers will present a higher risk of suffering from bone mineral diseases as well as other pathologies, as type 1 diabetes or neurological disorders. Of course, this insufficiency will also have an impact on mother's bone reserve, but these mothers will also be at higher risk for preeclampsia. [less ▲]

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See detailMisdiagnosis of vitamin D insufficiency in subjects who received vitamin D2
Cavalier, Etienne ULg; Wallace, Andrew Michael; Mistretta, Virginie ULg et al

in Clinical Chemistry (2008), 54(6), 110

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See detailVaccinia virus lacking the Bcl-2-like protein N1 induces a stronger natural killer cell response to infection.
Jacobs, Nathalie ULg; Bartlett, Nathan W; Clark, Richard H et al

in Journal of General Virology (The) (2008), 89(Pt 11), 2877-81

The vaccinia virus (VACV) N1 protein is an intracellular virulence factor that has a Bcl-2-like structure and inhibits both apoptosis and signalling from the interleukin 1 receptor, leading to nuclear ... [more ▼]

The vaccinia virus (VACV) N1 protein is an intracellular virulence factor that has a Bcl-2-like structure and inhibits both apoptosis and signalling from the interleukin 1 receptor, leading to nuclear factor kappa B activation. Here, we investigated the immune response to intranasal infection with a virus lacking the N1L gene (vDeltaN1L) compared with control viruses expressing N1L. Data presented show that deletion of N1L did not affect the proportion of CD4+ and CD8+ T cells infiltrating the lungs or the cytotoxic T-cell activity of these cells. However, vDeltaN1L induced an increased local natural killer cell activity between days 4 and 6 post-infection. In addition, in the absence of N1 the host inflammatory infiltrate was characterized by a reduced proportion of lymphocytes bearing the early activation marker CD69. Notably, there was a good correlation between the level of CD69 expression and weight loss. The implications of these findings are discussed. [less ▲]

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See detailExperimental dissociations between memory measures: Influence of retrieval strategies.
Willems, Sylvie ULg; Van der Linden, Martial

in Consciousness & Cognition (2008)

The objective of this study was to explore the participants' processing strategies on the mere exposure effect, object decision priming and explicit recognition. In Experiments 1, we observed that ... [more ▼]

The objective of this study was to explore the participants' processing strategies on the mere exposure effect, object decision priming and explicit recognition. In Experiments 1, we observed that recognition and the mere exposure effect for unfamiliar three-dimensional objects were not dissociated by plane rotations in the same way as recognition and object decision priming. However, we showed that, under identical conditions, prompting analytic (part-based) processing at testing produced a large plane rotation effect on recognition and the mere exposure effect similar to that observed for object decision priming (Experiment 2). Furthermore, inducing a non-analytic (whole-based) processing strategy at testing produced a reduced plane rotation effect on recognition and object decision (Experiments 3 and 4), similar to that observed for the mere exposure effect. These findings suggest that participants' processing strategies influence performance on the three tasks. [less ▲]

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See detailBaulicher Brandschutz
Schneider, Ulrich; Franssen, Jean-Marc ULg; Lebeda, Christian

Book published by Bauwerk Verlag, GmbH - 2nd edition (2008)

This book contains: fire safety concepts as a base for fire safety of building constructions; fire safety requirements ; etc

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See detailLe syndrome métabolique, physiopathologie et traitement
Scheen, André ULg

in Athérosclérose, athérothrombose. Quoi de neuf? (2008)

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See detailUnitarisation and black-disk limit at the LHC in the presence of a hard pomeron
Cudell, Jean-René ULg; Selyugin, Oleg Viktorovich

in Physics Letters B (2008), 662(5), 417-423

Recent models of soft diffraction include a hard pomeron pole besides the usual soft term. Such models violate the black-disk limit around Tevatron energies, so that they need to be supplemented by a ... [more ▼]

Recent models of soft diffraction include a hard pomeron pole besides the usual soft term. Such models violate the black-disk limit around Tevatron energies, so that they need to be supplemented by a unitarisation scheme. Two standard schemes are considered in this Letter, and we show that they lead to an uncertainty at the LHC much larger than previously estimated. We also examine the signature of unitarisation on various small-t observables, the slope in t of the elastic cross section, or the ratio of the real to imaginary parts of the scattering amplitude, and show that the existence of a unitarised hard pomeron in soft scattering may be confirmed by LHC data. (C) 2008 Elsevier B.V. All rights reserved. [less ▲]

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See detailDineren onder vrienden (en rivalen). Literaire prijzen, netwerken en consecratiestrategieën
Dozo, Björn-Olav ULg; Lacroix, Michel

in Freespace Nieuwzuid (2008), 32

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See detailNeural networks for short-term memory for order differentiate high and low proficiency bilinguals
Majerus, Steve ULg; Belayachi, Sanaa ULg; De Smedt, Bert et al

in NeuroImage (2008), 42

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See detailDissociation of perceptual and motor inhibitory processes in young and elderly participants using the Simon task.
Germain, Sophie ULg; Collette, Fabienne ULg

in Journal of the International Neuropsychological Society (2008), 14(6), 1014-21

Deficits in inhibitory abilities are frequently observed in normal aging. However, few studies have explored the generality of these deficits in a single group of participants. Here, we used an adaptation ... [more ▼]

Deficits in inhibitory abilities are frequently observed in normal aging. However, few studies have explored the generality of these deficits in a single group of participants. Here, we used an adaptation of the Simon task to differentially assess perceptual and motor inhibition using the same stimuli and task design and to determine whether these processes use separate or shared cognitive resources. We were interested in determining whether (1) normal aging is associated with the use of separate (as previously evidenced in young participants) or similar cognitive resources to perform perceptual and motor inhibition tasks; (2) older participants present a specific impairment in one of these two processes. Analyses of reaction times indicated that motor and perceptual inhibitory processes share some cognitive resources and both are impaired in normal aging. These results can be interpreted by considering that a dedifferentiation process is responsible for the inhibitory deficits presented by older participants. [less ▲]

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See detailCystatin C, renal function, and cardiovascular risk.
Delanaye, Pierre ULg; Cavalier, Etienne ULg; Krzesinski, Jean-Marie ULg

in Annals of Internal Medicine (2008), 148(4), 323

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See detailCystatin C-based equations: don't repeat the same errors with analytical considerations.
Delanaye, Pierre ULg; Cavalier, Etienne ULg; Krzesinski, Jean-Marie ULg et al

in Nephrology Dialysis Transplantation (2008), 23(3), 10651065-6

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See detailCreatinine calibration in NHANES: is a revised MDRD study formula needed?
Delanaye, Pierre ULg; Cavalier, Etienne ULg; Maillard, Nicolas et al

in American Journal of Kidney Diseases (2008), 51(4), 709709-10

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See detailStructure development of resorcinol-formaldehyde gels: either microphase separation or colloid aggregation
Gommes, Cédric ULg; Roberts, Anthony

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2008), 77

Time-resolved small-angle x-ray scattering (SAXS) is used to follow the formation of resorcinol-formaldehyde (RF) gels. An existing morphological model based on Gaussian random fields, and validated on RF ... [more ▼]

Time-resolved small-angle x-ray scattering (SAXS) is used to follow the formation of resorcinol-formaldehyde (RF) gels. An existing morphological model based on Gaussian random fields, and validated on RF aerogels, is generalized to analyze the data. The generalization is done in two different ways, one being relevant to colloid aggregation and the other to microphase separation. The SAXS data do not enable discrimination between the two mechanisms of gel formation, which shows that aggregation and microphase separation can generate very similar morphologies at the length scales explored by SAXS. Furthermore, physical arguments suggest that, in the case of RF gels, aggregation and microphase separation can be regarded as two idealizations of the same complex physical process. [less ▲]

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See detailImpact of different spectroscopic datasets on CH4 retrievals from Jungfraujoch FTIR spectra
Duchatelet, Pierre ULg; Mahieu, Emmanuel ULg; Demoulin, Philippe ULg et al

(2008)

Due to its high warming potential and its relatively long chemical lifetime (~9 years), atmospheric methane (CH4) plays a major role in the radiative forcing responsible of the greenhouse effect. Methane ... [more ▼]

Due to its high warming potential and its relatively long chemical lifetime (~9 years), atmospheric methane (CH4) plays a major role in the radiative forcing responsible of the greenhouse effect. Methane also affects climate by influencing tropospheric ozone and stratospheric water. High quality methane data sets are needed to understand its cycle and evaluate its budget of sources and sinks. Methane vertical distribution as well as total and partial column time series can be retrieved from high-resolution ground-based FTIR spectra, using, e.g., the SFIT-2 algorithm which implements the Optimal Estimation Method of Rodgers . However, although several retrieval approaches characterized by relatively high information content exist, methane retrieved profiles very often present large oscillations in their tropospheric range, which might result partly from inappropriate or inconsistent parameters. Significant improvements on retrieval quality should therefore be reached by using more accurate or compatible CH4 spectroscopic data. The main purpose of this contribution is to test and compare three different sets of CH4 spectroscopic parameters and to quantify their impact on CH4 retrieved products as well as on the fitting quality. [less ▲]

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See detailComment je traite...La leucémie myéloblastique aiguë (LMA) du sujet age en bon état général.
Lejeune, Marie ULg; Beguin, Yves ULg; De Prijck, Bernard ULg et al

in Revue Médicale de Liège (2008), 63(2), 59-63

This article describes the treatment of acute myeloid leukemia in older patients with good performance status, and then discusses briefly some future therapeutic perspectives.

Detailed reference viewed: 212 (18 ULg)