References of "BOUQUEGNEAU, Antoine"
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See detailL'éveil de la matrix-gla-protéine sonnera le glas des calcifications vasculaires
DELANAYE, Pierre ULg; Liabeuf, Sophie; BOUQUEGNEAU, Antoine ULg et al

in Néphrologie & Thérapeutique (2015), 11(4), 191-200

La matrix-gla-protéine (MGP) est principalement sécrétée par les chondrocytes et les cellules musculaires lisses des parois vasculaires. Son rôle est d’inhiber localement le développement des ... [more ▼]

La matrix-gla-protéine (MGP) est principalement sécrétée par les chondrocytes et les cellules musculaires lisses des parois vasculaires. Son rôle est d’inhiber localement le développement des calcifications vasculaires. MGP doit bénéficier de deux processus post-transcriptionnels avant d’être pleinement active : une phosphorylation de résidus sérine et une carboxylation de résidus glutamate. Cette carboxylation ne peut se faire qu’en présence de quantité suffisante de vitamine K. Plusieurs formes de MGP circulent donc dans le plasma, certaines étant totalement inactives (la MGP déphosphorylée et décarboxylée), d’autres possédant une activité biologique variable en fonction du nombre de sites carboxylés ou phosphorylés. Il existe un lien théorique étroit entre MGP, vitamine K, calcifications vasculaires et maladies cardiovasculaires et ce, particulièrement chez les patients souffrant d’insuffisance rénale chronique, a fortiori s’ils sont dialysés. Si l’existence de ce lien a été démontrée via de nombreuses et solides données fondamentales, les données cliniques restent, à ce jour, observationnelles et doivent donc être interprétées avec prudence. Mesurer une fraction de MGP dans le plasma pour estimer le degré de calcification d’un patient donné n’est pas encore d’actualité . La forme inactive pourrait être utile pour juger des réserves en vitamine K au niveau vasculaire. Dans cet article de revue, nous reviendrons sur les bases théoriques du rôle de MGP dans le processus de calcification vasculaire, sur le défi analytique que représente sa détermination dans le plasma, ainsi que sur les liens entre MGP, vitamine K et calcifications vasculaires en population géne´ rale et chez les patients insuffisants rénaux. [less ▲]

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See detailBiomarkers and physiolpathology in the cardiorenal syndrome
BOUQUEGNEAU, Antoine ULg; KRZESINSKI, Jean-Marie ULg; DELANAYE, Pierre ULg et al

in Clinica Chimica Acta (2015), 443

Acute cardiorenal syndrome (CRS) corresponds to an association of acute heart failure and a worsening of renal function. The detection of acute kidney injury (AKI) unfortunately occurs at a late stage of ... [more ▼]

Acute cardiorenal syndrome (CRS) corresponds to an association of acute heart failure and a worsening of renal function. The detection of acute kidney injury (AKI) unfortunately occurs at a late stage of CRS, leading to an increased mortality of the patients. In this review, we described the pathophysiology of CRS and discussed the potential interest of biochemical biomarkers (namely creatinine, cystatin C, NGAL, KIM-1, fatty acid binding protein, Nacetyl-β-D-glucosaminidase and IL-18) that could potentially help to detect AKI earlier and thus reduce the morbi-mortality of the patients suffering from CRS. [less ▲]

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See detailPlace de la vitamine D native en dialyse
DELANAYE, Pierre ULg; BOUQUEGNEAU, Antoine ULg; KRZESINSKI, Jean-Marie ULg et al

in Néphrologie & Thérapeutique (2015), 11(1), 5-15

Chronic kidney disease is frequent and usually responsible of mineral and bone disorder. These abnormalities lead to increased morbidity and mortality. To become active, native vitamin D needs a first ... [more ▼]

Chronic kidney disease is frequent and usually responsible of mineral and bone disorder. These abnormalities lead to increased morbidity and mortality. To become active, native vitamin D needs a first hydroxylation in the liver, and a second one in the kidney. Next to its action on bone metabolism, vitamin D also possesses pleiotropic actions on cardiovascular, immune and neurological systems as well as antineoplastic activities. End-stage renal disease (ESRD) is also associated with a decrease in vitamin D activity by mechanisms including the increase of plasma phosphate concentration, secretion of FGF- 23 and decrease in 1a-hydroxylase activity. The prevalence of 25 hydroxy-vitamin D deficiency depends on the chosen cut-off value to define this lack. Currently it is well established that a patient has to be substituted when 25 hydroxy-vitamin D level is under 30 ng/mL. The use and monitoring of 1.25 hydroxy-vitamin D is still not recommended in routine practice. The goals of vitamin D treatment in case of ESRD are to substitute the deficiency and to prevent or treat hyperparathyroidism. Interest of native vitamin D in first intention is now well demonstrated. This review article describes the vitamin D metabolism and physiology and also the treatment for vitamin D deficiency in ESRD population. [less ▲]

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See detailModification of diet in renal disease versus chronic kidney disease epidemiology collaboration equation to estimate glomerular filtration rate in obese patients
BOUQUEGNEAU, Antoine ULg; Vidal-Petiot, Emanuelle; Vrtovsnik, François et al

in Nephrology Dialysis Transplantation (2013), 28(4), 122-130

Background Obesity is a recognized risk factor for both the development and progression of chronic kidney disease (CKD). Accurate estimation of glomerular filtration rate (GFR) is thus important in these ... [more ▼]

Background Obesity is a recognized risk factor for both the development and progression of chronic kidney disease (CKD). Accurate estimation of glomerular filtration rate (GFR) is thus important in these patients. We tested the performances of two creatinine-based GFR estimates, the Modification of Diet in Renal Disease (MDRD) and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations, in an obese population. Methods Patients with body mass index (BMI) > 30 kg/m2 were included. The reference method for measured GFR (mGFR) was 51Cr-EDTA (single-injection method, two blood samples at 120 and 240 min). Both indexed and non-indexed results were considered. Serum creatinine was measured using the IDMS-traceable compensated Jaffe method. Mean bias (eGFR–mGFR), precision (SD around the bias) and accuracy within 30% (percentage of estimations within 30% of mGFR) were calculated for both equations. Results The population included 366 patients (185 women) from two different areas. Mean age was 55 ± 14 years, and mean BMI was 36 ± 7 kg/m2. Mean mGFR was 56 ± 26 mL/min/1.73 m2 (71 ± 35 mL/min without indexation). In the total population, mean bias was +1.9 ± 14.3 and +4.6 ± 14.7 mL/min/1.73 m2 (P < 0.05), and accuracy 30% was 80 and 76% for the MDRD and CKD-EPI equations (P < 0.05), respectively. In patients with mGFR > 60 mL/min/1.73 m2, mean bias was +4.6 ± 18.4 and +9.3 ± 17.2 mL/min/1.73 m2 (P < 0.05), and accuracy 30% was 81 and 79% (NS) for the MDRD and CKD-EPI equations, respectively. Conclusions The CKD-EPI equation did not outperform the MDRD study equation in this population of obese patients [less ▲]

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See detailMDRD VERSUS CKD-EPI EQUATIONS TO ESTIMATE GLOMERULAR FILTRATION RATE IN OBESE PATIENTS
BOUQUEGNEAU, Antoine ULg; CAVALIER, Etienne ULg; Krzesinski, Jean-Marie ULg et al

in Nephrology Dialysis Transplantation (2013, April 18), 28(supplément 1), 117-139

Introduction and Aims: Obesity is recognized as a risk factor both for the development and progression of chronic kidney disease (CKD). Estimating glomerular filtration rate (GFR) is thus especially ... [more ▼]

Introduction and Aims: Obesity is recognized as a risk factor both for the development and progression of chronic kidney disease (CKD). Estimating glomerular filtration rate (GFR) is thus especially important to follow these patients. We have tested the performances of two creatinine-based equations, namely the MDRD and CKD-EPI equations, in an obese population. Conclusions :Both in the global and subgroup analyses, the CKD-EPI equation did not outperform the MDRD study equation. The performances of both equations were worse in CKD patients. These two conclusions were still valid if indexed GFR was considered. [less ▲]

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See detailMalabsorption des hormones thyroïdiennes... ou simple manque de compliance ?
Benoit, Arnaud ULg; BOUQUEGNEAU, Antoine ULg; PETROSSIANS, Patrick ULg et al

in Revue Médicale de Liège (2013), 68(3), 118-121

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See detailLe médicament du mois : Fébuxostat (Adenuric®)
DELANAYE, Pierre ULg; BOUQUEGNEAU, Antoine ULg; DUBOIS, Bernard ULg et al

in Revue Médicale de Liège (2012), 67(4), 202-209

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See detailAnorexia Nervosa and the Kidney
BOUQUEGNEAU, Antoine ULg; DUBOIS, Bernard ULg; Krzesinski, Jean-Marie ULg et al

in American Journal of Kidney Diseases (2012), 60(2), 299-307

Anorexia nervosa is a common psychiatric disorder that disproportionately affects adolescents and young adults and is associated with high rates of morbidity and mortality. Anorexia nervosa can affect the ... [more ▼]

Anorexia nervosa is a common psychiatric disorder that disproportionately affects adolescents and young adults and is associated with high rates of morbidity and mortality. Anorexia nervosa can affect the kidney in numerous ways, including increased rates of acute kidney injury and chronic kidney disease, electrolyte abnormalities, and nephrolithiasis. Additionally, the diagnosis and treatment of anorexia nervosa–associated kidney diseases are challenging, reflecting complications such as refeeding syndrome, as well as the limitations of serum creatinine level in this population to estimate kidney function and the psychosocial challenges inherent with treating systemic manifestations of psychiatric conditions. In this review, we discuss kidney diseases and kidney-associated conditions that occur in individuals with anorexia nervosa, summarizing many of the challenges in treating patients with this disease [less ▲]

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