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- W2002539807 abstract "The effects of ethane hydroxy diphosphonate (EHDP) on quantitative bone histology have been studied in 43 pagetic patients treated for 6 months at a dose of 5 mg/kg/day. To determine the therapeutic effects on pagetic bone and to appreciate the side effects in non-pagetic bone, the patients were biopsied either in pagetic or non-pagetic areas of the ilium before the beginning of the treatment and at 3, 6 and 9 months (i.e. 3 months post-therapy) after the inception of treatment. Tetracycline double labelling of bone was performed before biopsies in each patient to measure the calcification rate. The results demonstrate that 5 mg/kg/day EHDP given for 6 months has a marked antiosteoclastic effect which is prolonged after the cessation of treatment. Pagetic osteoclasts appear more sensitive to EHDP than normal osteoclasts. The new bone formed during treatment has a regular lamellar texture. At the same time, the high appositional rate of pagetic bone is reduced to a normal value. Marrow fibrosis is reduced along with the reduction in the osteoclast population. Thus, pagetic bone changes to bone normal in quantity, quality and metabolism. Dynamically, in nonpagetic areas, a transitory decrease of calcification rate Is noted at the end of the treatment, without morphological evidence of osteomalacia, except for 2 out of 43 cases. Histologically, EHDP given at a dose of 5 mg/kg/day for 6 months appears to be an effective and safe treatment for Paget's disease of bone. Les effets de l'éthane-1-hydroxy-1, 1-diphosphonate (EHDP) sur lea param`etres histologiques osseux quantitatifs ont étéétudiés chez 43 pagétiques traités pendant 6 moss par 5 mg/kg/jour d'EHDP. Afin de déterminer lea effets thérapeutiques sur l'os pagétique et d'éventuels effets secondaires our l'os non pagétique, les malades ont tous subi deux biopsies transiliaques, l'une avant le debut du traitement, l'autre 3, 6 ou 9 mols plus tard (soit, dons ce dernler cas, 3 mols après l'arrêt du traitement). Les prélèvements ont port́e soit en territolre pagétique, soit sur i'os non pagétique, et ont été effectués après double marquage par la tétracycline, qui permet la mesure de la vitesse de calcification. que celu!-c! se poursuit au-delà de l'arrêt du traltement. Les ostéoclastes pagétiques semblent plus sensibles à l'EHDP qua les ostéociastes normaux. L'os nouveau formé sous traitement a une texture lameflaire régulière, on même temps qua la vitesse d'apposition en os pagdtique est ramenée à la normale. La fibrose médullaire diminue avec la population ostéoclastique. Donc I'os pagdtique tend à devenir normal de par sa quantité, sa qualité et son métabolisms. Dynamiquement, on note en os non pagétique une réduction trensitoire de la vitesse de calcification on fin de traitement, mais sans signe morphologique d'ostéomalacle, sauf dons 2 cas sur 43. D'un point de vue histologique, l'EHDP, prescrit à la dose de 5 mg/kg/jour pendant 6 mois, apparaft comme un traltement efficace et sans danger de is maladie osseuse de Paget." @default.
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- W2002539807 title "Effects of ethane-1 hydroxy-1, 1-Diphosphonate (5 mg/kg/day dose) onquantitative bone histology in paget's disease of bone" @default.
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- W2002539807 doi "https://doi.org/10.1016/0221-8747(81)90047-3" @default.
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