References of "Cavalier, Etienne"
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See detailVascular calcification: from pathophysiology to biomarkers
EVRARD, Séverine ULg; DELANAYE, Pierre ULg; Kamel, S et al

in Clinica Chimica Acta (2015), 438

The link between vascular calcification (VC) and increased mortality is now well established. Over time, as clinical importance of this phenomenon has begun to be fully considered, scientists have ... [more ▼]

The link between vascular calcification (VC) and increased mortality is now well established. Over time, as clinical importance of this phenomenon has begun to be fully considered, scientists have highlightedmore and more physiopathological mechanisms and signaling pathways that underlie VC. Several conditions such as diabetes, dyslipidemia and renal diseases are undoubtedly identified as predisposing factors. But even if the process is better understood,many questions still remain unanswered. This reviewbriefly develops the various theories that attempt to explain mineralization genesis. Nonetheless, the main purpose of the article is to provide a profile of the various existing biomarkers of VC. Indeed, in the past years, a lot of inhibitors and promoters, which form a dense and interconnected network, were identified. Given importance to assess and control mineralization process, a focusing on accumulated knowledge of each marker seemed to be necessary. Therefore, we tried to define their respective role in the physiopathology and how they can contribute to calcification risk assessment. Among these, Klotho/fibroblast growth factor-23, fetuin-A, Matrix Gla protein, Bone morphogenetic protein-2, osteoprotegerin, osteopontin, osteonectin, osteocalcin, pyrophosphate and sclerostin are specifically discussed. [less ▲]

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See detailKDIGO Guidelines and Kidney Transplantation: Is the cystatin-C Based Recommendation relevant?
Masson, I; Maillard, N; CAVALIER, Etienne ULg et al

in American Journal of Transplantation (2015), 15(8), 2211-4

The KDIGO guidelines propose a new approach to diagnose chronic kidney disease (CKD) based on estimated glomerular ®ltration rate (GFR). In patients with a GFR value comprised between 45 and 59 mL/ min/1 ... [more ▼]

The KDIGO guidelines propose a new approach to diagnose chronic kidney disease (CKD) based on estimated glomerular ®ltration rate (GFR). In patients with a GFR value comprised between 45 and 59 mL/ min/1.73m2 as estimated by the CKD-EPI creatinine equation (eGFRcreat), it is suggested to con®rm the diagnosis with a second estimation using the CKD-EPI cystatin C-based equations (eGFRcys/eGFRcreat-cys). We sought to determine whether this new diagnostic strategy might extend to kidney transplant recipients (KTR) and help to identify those with decreased GFR. In 670 KTR for whom a measured GFR was available, we simulated the detection of CKD using the two-steps approach recommended by the guidelines in comparison to the conventional approach relying on creatinine equation. One hundred forty-®ve patients with no albuminuria had eGFRcreat between 45 and 59 mL/ min/1.73m2. Among them, 23% had inulin clearance over 60 mL/min/1.73m2 and were thus incorrectly classi®ed as CKD patients. When applying the Kidney Disease: Improving Global Outcomes (KDIGO) strategy, 138 patients were con®rmed as having a GFR below 60 mL/min with eGFRcreat-cys. However, 21% of them were misclassi®ed in reference to measured GFR. Our data do no not support the use of cystatin C as a con®rmatory test of stage 3A CKD in KTR. [less ▲]

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See detaila phase IV, two-armed, randomized, cross-over study comparing compliance with once-a-month administration of vitamin D3 to compliance with daily administration of a fixed-dose combination of vitamin D3 and calcium during two 6-month periods
Bruyère, Olivier ULg; DEROISY, Rita ULg; Dardenne, Nadia ULg et al

in Osteoporosis International (2015)

Summary In a randomized, cross-over study, once monthly administration of vitamin D3 was preferred over a once daily administration of a fixed-dose combination of vitamin D3 and calcium, with a better ... [more ▼]

Summary In a randomized, cross-over study, once monthly administration of vitamin D3 was preferred over a once daily administration of a fixed-dose combination of vitamin D3 and calcium, with a better compliance but without any significant difference in the increase in vitamin D levels. Introduction The aim of the present study was to compare a once-monthly administration of vitamin D3 to a daily administration of a fixed-dose combination of vitamin D3 and calcium during two treatment periods of 6 months. Methods One hundred volunteers aged 50 years old or older were randomized to receive either one drinkable ampoule containing 25,000 IU vitamin D3 (D-Cure®, SMB) once monthly (group VD) or one chewable tablet containing 1000 mg calcium carbonate+800 IU vitamin D3 (Steovit Forte®, Takeda) once daily (group VDCa) during 6 months. After the first 6 months of treatment, the groups were reversed according to the randomized cross-over design. Treatment compliance (i.e. the primary outcome), preference, acceptability and vitamin D levels and adverse events were all collected. Results For the two periods, the patients had a significantly higher compliance in the VD group than in the VDCa group (p<0.0001). During the study, 50 (56.8 %) patients preferred the VD treatment, 16 (18.2 %) patients preferred the VDCa, and for 22 (25.0 %) patients, neither treatment was preferred. At the end of the first 6 months of treatment, the mean (SD) increase of 25(OH)D was 6.57 ng/mL (8.19) in the VD group and 3.88 ng/mL (10.0) in the VDCa group (p=0.16 between groups). Conclusion In this study, a once-monthly administration of vitamin D3 was preferred over a once-daily administration of a fixed-dose combination of vitamin D3 and calcium, with a better compliance but without any significant difference in the increase in vitamin D levels. [less ▲]

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See detailCritical evaluation of promising markers for sarcopenia
CAVALIER, Etienne ULg; GADISSEUR, Romy ULg; GEBOES, Séverine ULg et al

in Osteoporosis International (2015), 26(S1), 49-50

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See detailVitamin D status in critically ill patients: back to basics!
ROUSSEAU, Anne-Françoise ULg; CAVALIER, Etienne ULg

in Critical Care (2014), 18(6), 611

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See detailSystematic Analysis of two cystatin C assays using samples of 2057 older adults - The Berlin initiative study
Ebert, natalie; DELANAYE, Pierre ULg; Martus, Peter et al

Poster (2014, November)

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See detailImpact of the dialysis membrane on the Vitamin D metabolims markers
CAVALIER, Etienne ULg; DUBOIS, Bernard ULg; Urena, Pablo et al

Poster (2014, November)

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See detailCase report : Rhabdomyolysis following acute alcohol intoxication
HALENG, Jeanine ULg; CAVALIER, Etienne ULg

Poster (2014, October 18)

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See detailÉpidémiologie de la lithiase urinaire en Province de Liège
Castiglione, Vincent ULg; JOURET, François ULg; Bruyère, Olivier ULg et al

Conference (2014, October 17)

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See detailVitamine D: métabolisme, sources, modes d'action.
CAVALIER, Etienne ULg

Conference (2014, October 16)

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See detailLes biomarqueurs du remodelage osseux
CAVALIER, Etienne ULg

Conference (2014, October 02)

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See detailÉpidémiologie de la lithiase urinaire en Province de Liège
Castiglione, Vincent ULg; Jouret, François ULg; Bruyère, Olivier ULg et al

in Néphrologie & Thérapeutique (2014, October 01)

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See detailCalibration and precision of serum creatinine and plasma cystatin C measurement: impact on the estimation of glomerular filtration rate
DELANAYE, Pierre ULg; CAVALIER, Etienne ULg; Cristol, Jean-Paul et al

in Journal of Nephrology (2014), 27(5), 467-75

Serum creatinine (SCr) is the main variable for estimating glomerular filtration rate (GFR). Due to interassay differences, the prevalence of chronic kidney disease (CKD) varies according to the assay ... [more ▼]

Serum creatinine (SCr) is the main variable for estimating glomerular filtration rate (GFR). Due to interassay differences, the prevalence of chronic kidney disease (CKD) varies according to the assay used, and calibration standardization is necessary. For SCr, isotope dilution mass spectrometry (IDMS) is the gold standard. Systematic differences are observed between Jaffe and enzymatic methods. Manufacturers subtract 0.30 mg/dl from Jaffe results to match enzymatic results (‘compensated Jaffe method’). The analytical performance of enzymatic methods is superior to that of Jaffe methods. In the original Modification of Diet in Renal Disease (MDRD) equation, SCr was measured by a Jaffe Beckman assay, which was later recalibrated. A limitation of this equation was an underestimation of GFR in the high range. The Chronic Kidney Disease Epidemiology (CKD-EPI) consortium proposed an equation using calibrated and IDMS traceable SCr. The gain in performance was due to improving the bias whereas the precision was comparable. The CKD-EPI equation performs better at high GFR levels (GFR[60 ml/ min/1.73 m2). Analytical limitations have led to the recommendation to give a grade ([60 ml/min/1.73 m2) rather than an absolute value with the MDRD equation. By using both enzymatic and calibrated methods, this cutoff-grade could be increased to 90 ml/min/1.73 m2 (with MDRD) and 120 ml/min/1.73 m2 (with CKD-EPI). The superiority of the CKD-EPI equation over MDRD is analytical, but the precision gain is limited. IDMS traceable enzymatic methods have been used in the development of the Lund– Malmo¨ (in CKD populations) and Berlin Initiative Study equations (in the elderly). The analytical errors for cystatin C are grossly comparable to issues found with SCr. Standardization is available since 2011. A reference method for cystatin C is still lacking. Equations based on standardized cystatin C or cystatin C and creatinine have been proposed. The better performance of these equations (especially the combined CKD-EPI equation) has been demonstrated. [less ▲]

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