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排序方式: 共有57条查询结果,搜索用时 31 毫秒
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Pamidronate is superior to ibandronate in decreasing bone resorption,interleukin-6 and beta 2-microglobulin in multiple myeloma 总被引:1,自引:0,他引:1
Terpos E Viniou N de la Fuente J Meletis J Voskaridou E Karkantaris C Vaiopoulos G Palermos J Yataganas X Goldman JM Rahemtulla A 《European journal of haematology》2003,70(1):34-42
OBJECTIVES: Bisphosphonates have been found to reduce skeletal events in patients with multiple myeloma (MM). This is the first randomised trial to compare the efficacy of pamidronate and ibandronate, a third-generation aminobisphosphonate, in bone turnover and disease activity in MM patients. METHODS: Patients with MM, stage II or III, were randomly assigned to receive either pamidronate 90 mg (group I: 23 patients) or ibandronate 4 mg (group II: 21 patients) as a monthly intravenous infusion in addition to conventional chemotherapy. Skeletal events, such as pathologic fractures, hypercalcaemia, and bone radiotherapy were analysed. Bone resorption markers [N-terminal cross-linking telopeptide of type-I collagen (NTX) and tartrate-resistant acid phosphatase type 5b (TRACP-5b)], bone formation markers (bone alkaline phosphatase and osteocalcin), markers of disease activity (paraprotein, CRP, beta 2-microglobulin), and interleukin-6 (IL-6) were also studied. RESULTS: In both groups, the combination of chemotherapy with either pamidronate or ibandronate produced a reduction in bone resorption and tumour burden as measured by NTX, IL-6, paraprotein, CRP, and beta 2-microglobulin from the second month of treatment, having no effect on bone formation. TRACP-5b also had a significant reduction in the pamidronate group from the second month of treatment and in the ibandronate group from the sixth month. However, there was a greater reduction of NTX, IL-6, and beta 2-microglobulin in group I than in group II, starting at the second month of treatment (P = 0.002, 0.001, and 0.004, respectively) and of TRACP-5b, starting at the fourth month (P = 0.014), that being continued throughout the 10-month follow-up of this study. There was no difference in skeletal events during this period. A significant correlation was observed between changes of NTX and changes of TRACP-5b, IL-6, and beta 2-microglobulin from the second month for patients of both groups. CONCLUSIONS: These results suggest that a monthly dose of 90 mg of pamidronate is more effective than 4 mg of ibandronate in reducing osteoclast activity, bone resorption, IL-6, and possibly tumour burden in MM. TRACP-5b has also proved to be a useful new marker for monitoring bisphosphonates treatment in MM. 相似文献
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Treatment of anemia in low-risk myelodysplastic syndromes with amifostine. In vitro testing of response 总被引:7,自引:0,他引:7
Viniou N Terpos E Galanopoulos A Kritikou-Griva E Akel S Michalis E Apostolidou E Georgiadou D Kouraklis A Parharidou A Kokkini G Symeonidis A Anagnostopoulos NI Christakis JI Tasiopoulou A Loukopoulos D Yataganas X 《Annals of hematology》2002,81(4):182-186
Amifostine (AMF) promotes in vitro growth and survival of hematopoietic progenitors. In this study we evaluated the efficacy of AMF in the treatment of anemia in patients with low-risk myelodysplastic syndromes (MDS) and the possible predicting value for response to AMF therapy of two types of in vitro clonogenic assays. Two different doses of AMF, 300 mg/m2 (group A, 11 patients) or 400 mg/m2 (group B, 16 patients), were studied. AMF was given three times weekly for 3 weeks, i.v., followed by 2 weeks off therapy. Patients were evaluated after two cycles of treatment. Partially or nonresponding patients of group A received 400 mg/m2 AMF and were reevaluated. An increase of hemoglobin (Hb) values of more than 2 g/dl and a 100% decrease in transfusion requirements for at least 6 weeks were defined as a complete response (CR) while an increase of Hb values of 1-2 g/dl or a 50% decrease in transfusion requirements was considered as a partial response (PR). In group A, two out of 11 (18.1%) patients achieved a CR with the initial dose and one of the nine that received 400 mg/m2 AMF achieved a PR. In group B, three out of 16 (18.7%) patients achieved a PR; the overall response rate in both groups was 22.2%. In group A, bone marrow progenitor assay was performed pre- and post-amifostine treatment. Erythroid burst-forming units (BFU-E) were increased in six out of 11 (54.5%) patients, and this increase preceded the rise in Hb levels in three of them. In group B, a clonogenic assay was performed in 11 out of 16 patients before AMF treatment. In vitro results after pretreatment with 500 microM amifostine confirmed the response of two MDS patients that achieved a PR. No response in vitro was observed in all eight nonresponding patients and in one PR patient. The lack of response in the clonogenic assays predicted for nonresponse to treatment with a predictive power of 91.8%. We conclude that 300 mg/m2 is an adequate initial treatment for low-risk MDS patients and both clonogenic assays have a strong predicting value for response to treatment. 相似文献
5.
Terpos E Palermos J Tsionos K Anargyrou K Viniou N Papassavas P Meletis J Yataganas X 《European journal of haematology》2000,65(5):331-336
AIM: Bisphosphonates are potent inhibitors of osteoclastic activity and are used in the treatment of multiple myeloma (MM) in combination with chemotherapy. The effect of pamidronate on markers of bone resorption [cross-linked N-telopeptides of type I collagen (NTx)], markers of bone formation [serum alkaline phosphatase (BAP) and osteocalcin (OSC)], interleukin-6 (IL-6), beta2-microglobulin, CRP, paraprotein and disease-related pain and skeletal events has been evaluated in 62 newly diagnosed patients with MM. PATIENTS AND METHODS: The patients were randomly assigned to two groups: the first included 32 patients under chemotherapy and pamidronate (group I) and the second 30 patients on chemotherapy only (group II). Pamidronate was administered at a monthly dose of 90 mg iv, and the above parameters were evaluated at the beginning of this study and after 1, 3, 6, 9, 12 and 14 months of treatment. RESULTS: The addition of pamidronate to chemotherapy resulted in a significant reduction of NTx, IL-6 and paraprotein from the 3rd month and of beta2-microglobulin, CRP and pain from the 6th month of treatment. No changes of NTx, IL-6, beta2-microglobulin, CRP or skeletal events were observed in patients of group II, while paraprotein was significantly reduced after 6 months of treatment. The differences in NTx, IL-6, paraprotein and beta2-microglobulin were statistically significant between the two groups. Multivariate analysis revealed a significant correlation between changes of NTx, changes of IL-6 in both groups and reduction of pain and paraprotein in group I. CONCLUSIONS: These results suggest that pamidronate may have a synergistic action with chemotherapy in decreasing osteoclastic activity, in reducing markers of myeloma activity and myeloma related pain and in improving the quality of life in patients with MM. 相似文献
6.
J Meletis X Yataganas G Vayopoulos K Konstantopoulos D Kyriakou F Deligiannis P Fessas 《Scandinavian journal of infectious diseases》1989,21(3):343-344
A case of tropical pyomyositis in a 24-year-old Greek is reported. The patient presented with high fever and swelling of the left thigh, generalized lymphadenopathy and multiple infiltrations in both lung fields on X-ray of the chest. Multifocal muscle abscesses were detected by CT scan of the left thigh and gluteal area. Staphylococcus aureus was identified in cultures of the purulent material which was surgically drained. The patient was subsequently treated with appropriate antibiotics. Lack of familiarity with this disease caused diagnostic confusion and delayed the initiation of treatment. 相似文献
7.
Soluble receptor activator of nuclear factor kappaB ligand-osteoprotegerin ratio predicts survival in multiple myeloma: proposal for a novel prognostic index 总被引:12,自引:0,他引:12
Terpos E Szydlo R Apperley JF Hatjiharissi E Politou M Meletis J Viniou N Yataganas X Goldman JM Rahemtulla A 《Blood》2003,102(3):1064-1069
Interaction between receptor activator of nuclear factor kappaB ligand (RANKL) and RANK/osteoprotegerin (OPG) plays a dominant role in osteoclast activation and possibly in plasma cell survival in multiple myeloma (MM). We measured soluble RANKL (sRANKL), OPG, and bone remodeling markers in 121 patients with newly diagnosed MM to evaluate their role in bone disease and survival. Serum levels of sRANKL were elevated in patients with MM and correlated with bone disease. The sRANKL/OPG ratio was also increased and correlated with markers of bone resorption, osteolytic lesions, and markers of disease activity. The sRANKL/OPG ratio, C-reactive protein (CRP), and beta2-microglobulin were the only independent prognostic factors predicting survival in multivariate analysis. We generated a prognostic index based on these factors that divided our patients into 3 risk groups. The low-risk group had a 96% probability of survival at 5 years, whereas the intermediate-risk and the high-risk groups had probabilities of survival of 52% and 0%, respectively. Not only do these results confirm for the first time in humans the importance of sRANKL/OPG in the development of bone disease, they also highlight the role of this pathway in the biology of plasma cell growth as reflected by its influence on survival. 相似文献
8.
Tsimberidou AM Stavroyianni N Viniou N Papaioannou M Tiniakou M Marinakis T Skandali A Sakellari I Yataganas X;Hellenic Cooperative Group 《Cancer》2003,97(7):1721-1731
BACKGROUND: Postremission therapy is critical in maintaining complete remission (CR) in patients with de novo acute myelogenous leukemia (AML). The aim of this trial was to compare allogeneic stem cell transplantation (SCT), high-dose cytarabine (ara-C; HiDAC), and autologous SCT as postremission therapy in patients with de novo AML. METHODS: One hundred twenty patients age = 60 years with previously untreated AML (non-M3) and a performance status score of = 2 received induction therapy with 3 days of idarubicin and 7 days of ara-C (IA). Patients in CR received one course of HiDAC. Subsequently, patients age = 50 years with available HLA-compatible donors were assigned to receive allogeneic SCT; patients with "favorable" cytogenetics received a second course of HiDAC; and all others were randomized to a second course of HiDAC or autologous SCT. RESULTS: The IA combination induced CR in 99 patients (82.5%). With a median follow-up of 43 months (range, 18-64 years), the 3-year survival and failure-free survival (FFS) rates were 47% and 45%, respectively. The factors associated with longer survival were those identified for CR (i.e., age and cytogenetics). Forty-nine patients (49%) received the assigned postremission therapy. Fifteen patients underwent allogeneic SCT. Nineteen patients underwent autologous SCT and 15 patients received a second course of HiDAC, after randomization. In the allogeneic SCT group, both the 3-year survival and the FFS rates were 73%. In the autologous SCT and HiDAC groups, the 3-year survival rates were 58% and 46%, respectively (P = 0.80), and the 3-year FFS rates were 42% and 33%, respectively (P = 0.83). CONCLUSIONS: The three postremission treatment groups had comparable survival. Allogeneic SCT is associated with a prolonged FFS. 相似文献
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The effects of various concentrations of hydroxyurea (HU) on a human lymphoid cell line in exponential growth phase have been studied using a combination of methods, including determination of the total and viable cell counts; the cells relative DNA content, measured in a flow microfluorimeter after staining with a fluorescent Feulgen technique; the mitotic index; and the percentage of cells incorporating thymidine-3H (TdR-3H) during brief and continuous exposure to the isotope both in the presence and absence of colcemid. A significant redistribution of the cells in the various phases of the cell cycle occurred during the first 24 hr of continuous treatment with 10(-3) M and 10(-2) M HU as follows: (1) division of cells in G2; (2) depletion of mid and late S phase cells due to early cell death; (3) movement of most G1 cells at a normal rate into early S phase where they accumulate; and (4) arrest of the remaining cells in G1, which represented the surviving population after treatment for 96 hr or longer. After removal of the drug, the cell fraction blocked in early S phase progressed semisynchronously through S, but many of the cells were unable to complete division. Their capacity to recover depended on the drug concentration and duration of exposure, but in general the cellular injury caused by HU was more reversible than that caused by "equivalent" concentrations of arabinosylcytosine. 相似文献