References of "Delcour, Jean-Pierre"
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See detailDevelopment and validation of the French version of a tool assessing patient's expectations in lower limb osteoarthritis
NEUPREZ, Audrey ULg; Delcour, Jean-Pierre; Fatemi, Firouzeh et al

in Journal of Orthopaedics (2015), 12

Objective: The Hospital for Special Surgery (HSS) Hip Replacement Expectations Survey and <br />Knee Replacement Expectations Survey are validated tools developed to measure patients' <br />preoperative ... [more ▼]

Objective: The Hospital for Special Surgery (HSS) Hip Replacement Expectations Survey and <br />Knee Replacement Expectations Survey are validated tools developed to measure patients' <br />preoperative expectations for hip and knee arthroplasty. These instruments have possible <br />uses in both daily practice and research. Our objective was to assess the test-retest reliability <br />and the construct validity of the French version of the surveys. <br />Methods: Patients scheduled for total hip (n ¼ 82) or knee replacement (n ¼ 61) aged 38e90 <br />years were included. All completed the HSS Hip or Knee Replacement Expectations Survey <br />and the Expectation WOMAC to determine concurrent validity. <br />The test-retest reliability was assessed using the intraclass coefficient correlation (ICC), <br />the Bland and Altman Method and the coefficient of variation; the internal consistency was <br />assessed by the Cronbach a coefficient. The construct validity was investigated using the <br />Pearson correlation coefficient and floor and ceiling effects by percentage frequency of <br />lowest or highest possible score achieved by respondents. <br />Results: 143 patients scheduled for hip or knee arthroplasty were included. <br />The reliability was excellent between the test and the rested total score, with an ICC of <br />0.902 (0.853e0.936) and CV of 4.06% for the French Hip Replacement Expectations Survey <br />and 0.865 (0.786e0.917) and CV of 7.7% for the French Knee Replacement Expectations <br />Survey, without bias. <br />The Cronbach a coefficient was 0.72 for hip Survey and 0.82 for knee Survey showing a <br />good internal consistency. <br />Pearson correlation coefficients of 0.45 and 0.48 between Expectations WOMAC and <br />HSS, respectively for hip Survey and knee Survey, were observed but with systematic bias. <br />The lowest possible score was not reported by any patient and only three patients <br />(3.66%) scheduled for hip arthroplasty reported the highest possible score. Conclusions: The French version of the HSS Hip or Knee Replacement Expectations Survey is <br />a reliable and valid questionnaire and compares favourably with the original English <br />version. Therefore, this new version may help French-speaking clinicians to evaluate expectations <br />before lower limb arthroplasty. [less ▲]

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See detailBone sialoprotein as a potential key factor implicated in the pathophysiology of osteoarthritis
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Walsh, David et al

in Osteoarthritis and Cartilage (2014), 22(4), 547-56

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See detailASSOCIATION BETWEEN CHONDROCYTE HYPERTROPHY AND ANGIOGENESIS OF CARTILAGE IN OSTEOARTHRITIS
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

Conference (2013, November)

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See detailBONE SIALOPROTEIN AS A KEY FACTOR IN THE PATHOPHYSIOLOGY OF OSTEOARTHRITIS
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Walsh, David et al

Conference (2013, November)

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See detailLa bone sialoproteine: un facteur clé dans la pathogénie de l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

Conference (2012, December)

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See detailAssociation entre l'hypertrophie du chondrocyte et l'angiogenèse du cartilage dans l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

Conference (2012, December)

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See detailAssociation between chondrocytes hypertrophy and angiogenesis of cartilage in osteoarthritis
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

Poster (2012, November 13)

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See detailAssociation between chondrocytes hypertrophy and angiogenesis of cartilage in osteoarthritis
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

in Arthritis and Rheumatism (2012, October), 64(10 (Suppl)), 760

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See detailLa bone sialoproteine: un facteur clé dans la pathogénie de l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

in Revue du Rhumatisme (2012), 79(S), 106

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See detailAssociation entre l'hypertrophie du chondrocyte et l'angiogenèse du cartilage dans l'arthrose
Pesesse, Laurence ULg; Sanchez, Christelle ULg; Delcour, Jean-Pierre et al

in Revue du Rhumatisme (2012), 79(S), 105-106

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See detailRegulation of subchondral bone osteoblast metabolism by cyclic compression.
Sanchez, Christelle ULg; Pesesse, Laurence ULg; Gabay, Odile et al

in Arthritis and Rheumatism (2012), 64(4), 1193-203

OBJECTIVE: Recent data have shown that abnormal subchondral bone remodeling plays an important role in osteoarthritis (OA) onset and progression, and it was suggested that abnormal mechanical pressure ... [more ▼]

OBJECTIVE: Recent data have shown that abnormal subchondral bone remodeling plays an important role in osteoarthritis (OA) onset and progression, and it was suggested that abnormal mechanical pressure applied to the articulation was responsible for these metabolic changes. This study was undertaken to evaluate the effects of cyclic compression on osteoblasts from OA subchondral bone. METHODS: Osteoblasts were isolated from sclerotic and nonsclerotic areas of human OA subchondral bone. After 28 days, the osteoblasts were surrounded by an abundant extracellular matrix and formed a resistant membrane, which was submitted to cyclic compression (1 MPa at 1 Hz) for 4 hours. Gene expression was evaluated by reverse transcription-polymerase chain reaction. Protein production in culture supernatants was quantified by enzyme-linked immunosorbent assay or visualized by immunohistochemistry. RESULTS: Compression increased the expression of genes coding for interleukin-6 (IL-6), cyclooxygenase 2, RANKL, fibroblast growth factor 2, IL-8, matrix metalloproteinase 3 (MMP-3), MMP-9, and MMP-13 but reduced the expression of osteoprotegerin in osteoblasts in both sclerotic and nonsclerotic areas. Colalpha1(I) and MMP-2 were not significantly affected by mechanical stimuli. Nonsclerotic osteoblasts were significantly more sensitive to compression than sclerotic ones, but after compression, differences in messenger RNA levels between nonsclerotic and sclerotic osteoblasts were largely reduced or even abolished. Under basal conditions, sclerotic osteoblasts expressed similar levels of alpha5, alphav, beta1, and beta3 integrins and CD44 as nonsclerotic osteoblasts but 30% less connexin 43, an important mechanoreceptor. CONCLUSION: Genes involved in subchondral bone sclerosis are mechanosensitive. After compression, nonsclerotic and sclerotic osteoblasts expressed a similar phenotype, suggesting that compression could be responsible for the phenotype changes in OA subchondral osteoblasts. [less ▲]

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See detailMatrix metalloproteinase-3 is a highly mechanosensitive gene in human subchondral osteoblasts
Sanchez, Christelle ULg; Pesesse, Laurence ULg; Delcour, Jean-Pierre et al

in Osteoarthritis and Cartilage (2010), 17(suppl 2), 217

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See detailPhenotypic Characterization of Osteoblasts from the Sclerotic Zones of Osteoarthritic Subchondral Bone
Sanchez, Christelle ULg; Deberg, Michelle ULg; Bellahcene, Akeila ULg et al

in Arthritis and Rheumatism (2008), 58(2), 442-55

OBJECTIVE: To determine the phenotype of osteoblasts from the sclerotic zones of human osteoarthritic (OA) subchondral bone. METHODS: Human osteoblasts were isolated from sclerotic or nonsclerotic areas ... [more ▼]

OBJECTIVE: To determine the phenotype of osteoblasts from the sclerotic zones of human osteoarthritic (OA) subchondral bone. METHODS: Human osteoblasts were isolated from sclerotic or nonsclerotic areas of subchondral bone and cultured for 14 days in monolayer. The expression of 14 genes was investigated by real-time reverse transcription-polymerase chain reaction. The activities of alkaline phosphatase (AP) and transglutaminases (TGases) were quantified by enzymatic assays. C-terminal type I procollagen propeptide (CPI), interleukin-1beta (IL-1beta), IL-6, IL-8, transforming growth factor beta1 (TGFbeta1), osteocalcin (OC), and osteopontin (OPN) were assayed in the culture medium by immunoassay. RESULTS: Gene expression levels of matrix metalloproteinase 13, COL1A1 and COL1A2, OPN, tissue-nonspecific AP, OC, vascular endothelial growth factor, ANKH, TGase 2, factor XIIIA, and dentin matrix protein 1 were significantly up-regulated in sclerotic osteoblasts compared with nonsclerotic osteoblasts. In contrast, parathyroid hormone receptor gene expression was depressed in sclerotic osteoblasts, but bone sialoprotein levels were unchanged. The activities of AP and TGases were increased in sclerotic osteoblasts, while matrix mineralization, revealed by alizarin red staining, was decreased. In parallel, protein synthesis of CPI, OC, OPN, IL-6, IL-8, and TGFbeta1 was significantly higher in sclerotic osteoblasts than in nonsclerotic osteoblasts, while IL-1beta production was similar in both groups. CONCLUSION: These findings contribute to a better understanding of the mechanisms involved in subchondral bone sclerosis and identify osteoblasts with an altered phenotype as a potential target for future OA therapies. [less ▲]

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See detailInterleukin-6 mediates subchondral osteoblasts-induced cartilage degradation
Sanchez, Christelle ULg; Kaut, Elisabeth; Deberg, Michelle ULg et al

in Osteoporosis International (2006, March), 17(Suppl. 1), 53

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See detailInterleukin-6 mediates subchondral osteoblasts-induced cartilage degradation
Henrotin, Yves ULg; Kaut, Elisabeth; Deberg, Michelle ULg et al

Poster (2005)

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See detailEtude in vitro de l’axe physiopathologique os-cartilage dans l’arthrose : implication de l’interleukin-6
Henrotin, Yves ULg; Kaut, Elisabeth; Deberg, Michelle ULg et al

in Revue du Rhumatisme (2005), 72(10-11), 958-986

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See detailLigamentoplasties du genou : Intérêt d'un renforcement musculaire préopératoire
Croisier, Jean-Louis ULg; Delcour, Jean-Pierre; Crielaard, Jean-Michel ULg

in Actes du 8ème Congrès National de la Société française de Médecine de Rééducation et de Réadaptation (1993, September)

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