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See detailWhen should we measure Vitamin D in Clinical Practice
CAVALIER, Etienne ULg

Conference (2012, September 29)

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See detailDiagnosis of parathyroid carcinoma: potential role of PTH laboratory assays
CAVALIER, Etienne ULg

Conference (2012, September 08)

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See detailVitamin D and Diabetes
CAVALIER, Etienne ULg

in Watson, Ronald Ross (Ed.) Bioactive Foods in Chronic Disease States (2012)

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See detailThe thyrogastric syndrome : an under diagnosed etiology for acquired gastric neuroendocrine tumors. A case report
VALDES SOCIN, Hernan Gonzalo ULg; LOLY, Jean ULg; GAST, Pierrette ULg et al

in Abstract Book - 13th International Workshop on Multiple Endocrine Neoplasia (2012, September)

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See detailNormal reference values for glomerular filtration rate: what do we really know?
DELANAYE, Pierre ULg; Schaeffner, E; Ebert, N et al

in Nephrology Dialysis Transplantation (2012), 27(7), 2664-72

In nephrology, chronic kidney disease is defined by both proteinuria and measurement of glomerular filtration rate (GFR). This article focuses on GFR and different ways to define its normal reference ... [more ▼]

In nephrology, chronic kidney disease is defined by both proteinuria and measurement of glomerular filtration rate (GFR). This article focuses on GFR and different ways to define its normal reference values. In this context, we compare two perspectives: first the reference values defined by measuring GFR in normal individuals (the 'classical way') and secondly a fixed cut-off value at 60 mL/min/1.73 m(2) according to the associated mortality risk (the 'prognostic way'). Following the classical way, we can assert that normal GFR values are largely over 60 mL/min/1.73 m(2) in healthy subjects, at least before the age of 70 years. However, we know that GFR physiologically decreases with age, and in adults older than 70 years, values below 60 mL/min/1.73 m(2) could be considered normal. Following the 'prognostic way', the fixed cut-off of 60 mL/min/1.73 m(2) has been retained in the K-DIGO guidelines. However, we challenge this concept and the fact that the variable 'age' is poorly taken into account in these data. There is an obvious discrepancy between the reference values defined either by the 'classical way' or by the 'prognostic way' which we think could be largely reduced, if age was better taken into consideration in these definitions. [less ▲]

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See detailPTH in Chronic Kidney Disease - What do the KDIGO Guidelines Change
CAVALIER, Etienne ULg

Conference (2012, June 14)

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See detailVitamin D and primary hyperparathyroidism (PHPT)
Souberbielle, Jean-Claude; Bienaimé, Frank; CAVALIER, Etienne ULg et al

in Annales d'Endocrinologie (2012), 73(3), 165-169

Vitamin D deficiency and primary hyperparathyroidism (PHPT) are two common conditions, especially in postmenopausal women. Vitamin D deficiency is said to be even more frequent in PHPT patients than in ... [more ▼]

Vitamin D deficiency and primary hyperparathyroidism (PHPT) are two common conditions, especially in postmenopausal women. Vitamin D deficiency is said to be even more frequent in PHPT patients than in the general population due to an accelerated conversion of 25-hydroxy vitamin D (25OHD) into calcitriol or 24-hydroxylated compounds. Although several studies have reported worsening of PHPT phenotype (larger tumours, higher parathyroid hormone [PTH] levels, more severe bone disease) when vitamin D deficiency coexists whereas vitamin D supplementation in PHPT patients with a serum calcium level less than 3 mmol/L has been shown to be safe (no increase in serum or urinary calcium) and to decrease serum PTH concentration, many physicians are afraid to give vitamin D to already hypercalcemic PHPT patients. It is possible that, in some patients, a persistent vitamin D deficiency induces, in the long-term, an autonomous secretion of PTH (i.e. tertiary hyperparathyroidism). The mechanism by which this could occur is unclear however. Finally, as many, otherwise normal, subjects with vitamin D insufficiency may have an increased serum PTH level we believe that those with vitamin D insufficiency should be excluded from a reference population for serum PTH levels. By doing that, we found that the upper normal limit for serum PTH was 25–30% lower than in the whole population. [less ▲]

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See detailMétabolisme phosphocalcique: prescription et impact économique
CAVALIER, Etienne ULg

Conference (2012, May 12)

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