Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Mais filtros

Base de dados
Intervalo de ano de publicação
Zhongguo Gu Shang ; 24(4): 295-8, 2011 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-21604524


OBJECTIVE: To compare the levels of STAT4 tyrosine phosphorylation in peripheral T-lymphocytes induced by IL-12 in rheumatoid arthritis (RA) and osteoarthritis (OA). METHODS: From May 2007 to August 2009, peripheral blood mononuclear cells (PBMCs) were isolated from RA patients [RA group, all the cases were female, the age was from 28 to 55 years with an average of (45.0 +/- 13.0) years] and OA patients [OA group, all the cases also were female; the age was from 55 to 75 years with an average of (67.0 +/- 9.6) years]. The purity of T-lymphocytes from PBMCs was accredited by flow cytometry. The IL-12 of 50 ng/ml added in T-lymphocytes, the levels of STAT4 tyrosine phosphorylation were detected by western blot after different time intervals (0, 10, 30, 60 min). RESULTS: The purity of T-lymphocytes were above 91% through diremption and depuration for peripheral blood monouclear cells. The levels of STAT4 tyrosine phosphorylation in T-lymphocytes from RA induced by IL-12 were higher than that from OA in the different times (10, 30, 60 min); after 30 min, its levels from RA and OA achieved to crest value. CONCLUSION: STAT4 in peripheral T-lymphocytes of rheumatoid arthritis was more easily to be activated than osteoarthritis.

Artrite Reumatoide/imunologia , Interleucina-12/farmacologia , Osteoartrite/imunologia , Fator de Transcrição STAT4/metabolismo , Linfócitos T/efeitos dos fármacos , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Fosforilação , Polimorfismo de Nucleotídeo Único , Fator de Transcrição STAT4/genética , Linfócitos T/metabolismo , Tirosina/metabolismo
Zhonghua Wai Ke Za Zhi ; 45(10): 708-11, 2007 May 15.
Artigo em Chinês | MEDLINE | ID: mdl-17688828


OBJECTIVE: To evaluate the clinical results and perioperative management of primary total knee arthroplasty (TKA) in hemophilic patients. METHODS: From February 1997 to February 2006, the data of 6 total knee arthroplasty performed in 4 hemophilic patients was reviewed retrospectively. The values of coagulation factor were maintained at suitable level by monitoring the activity of the factors and their inhibitors during perioperative period. The mean follow-up time was 4.4 years, knee society score and the last postoperative radiographs were recorded. RESULTS: After TKA, the hemophilic patients felt pain of knee relieved, the knee function was improved, but the range of motion increased limitedly. At the early post-operative stage, 3 knees in 2 patients with hemarthrosis or muscle bleeding, 1 of the 2 patients complicated with formation of inhibitor of factor VIII and healing problem in 1 knee after TKA, 1 patient with transient paralysis of the common peroneal nerve, 1 patient with venous circulation insufficiency crisis, but no compartment syndrome. In the late stage after TKA, 1 patient with hemarthrosis of both elbows, but no late infection, loosening, displacement and fracture of the prosthesis in the 6 knees. CONCLUSIONS: Total knee arthroplasty could alleviate knee pain and improve joint function in advanced severe hemophilic arthritic patients. It is important to monitor the activity and inhibitors of coagulation factor VIII or IX, which could decrease the early and late postoperative complications.

Artrite/cirurgia , Artroplastia do Joelho , Hemofilia A/complicações , Adulto , Idoso , Artrite/etiologia , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Assistência Perioperatória , Estudos Retrospectivos , Resultado do Tratamento
Zhonghua Wai Ke Za Zhi ; 45(6): 405-8, 2007 Mar 15.
Artigo em Chinês | MEDLINE | ID: mdl-17537328


OBJECTIVE: To discuss the outcomes and complications of total knee arthroplasty (TKA) for extension ankylosing deformity of the knee. METHODS: From January 1996 to June 2006, total knee arthroplasty was performed on 8 patients (9 knees) with extension ankylosing deformity. The preoperative ROM of all patients was 0 degrees . Preoperative knee and function score of KSS were 44 points (from 10 to 68) and 17 points (from -10 to 55) respectively. RESULTS: The complications of all TKAs included patellar tendon avulsion in 1 knee, partial fracture of inferior patella in 1 knee, hematoma in 1, superficial infection in 1. All patients were followed up for an average of 40.4 months (from 7.0 to 120.0). The average postoperative ROM was 89 degrees (from 50 degrees to 120 degrees ). Postoperative knee and function score of KSS were 81 points (from 55 to 93) and 79 points (from 50 to 90) respectively. Extension lag occurred in 2 knees, one was 10 degrees and the other was 25 degrees . One knee had undergone re-revision of changing the thicker tibial spacer for the reason of instability of joint 1 year after revision. CONCLUSIONS: TKA performed in extension ankylosing deformity can get less satisfactory clinical results comparing with fixed flexion deformity. Exposure of the knee joint and separation of the fused bones, providing a mobile joint space plays crucial procedure for the next step of surgery. Preservation of sufficient bone stock of patella, protection of patellar tendon and blood supply of the knee and proper soft tissue balance are the key to TKA for extension ankylosing deformity.

Anquilose/cirurgia , Artroplastia do Joelho/métodos , Deformidades Articulares Adquiridas/cirurgia , Articulação do Joelho , Adulto , Idoso , Anquilose/fisiopatologia , Artroplastia do Joelho/efeitos adversos , Feminino , Humanos , Deformidades Articulares Adquiridas/fisiopatologia , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/prevenção & controle , Amplitude de Movimento Articular , Estudos Retrospectivos , Resultado do Tratamento
Apoptosis ; 12(8): 1433-41, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17468978


Apoptosis is reduced in the synovial tissue of patients with rheumatoid arthritis (RA), possibly due to decreased expression of pro-apoptotic genes. Programmed Cell Death 5 (PDCD5) has been recently identified as a protein that mediates apoptosis. Although PDCD5 is down-regulated in many human tumors, the role of PDCD5 in RA has not been investigated. Here we report that reduced levels of PDCD5 mRNA and protein are detected in RA synovial tissue (ST) and fibroblast-like synoviocytes (FLS) than in tissue and cells from patients with osteoarthritis (OA). We also report differences in the PDCD5 expression pattern in tissues from patients with these two types of arthritis. PDCD5 showed a scattered pattern in rheumatoid synovium compared with OA, in which the protein labeling was stronger in the synovial lining layer than in the sublining. We also observed increased expression and nuclear translocation of PDCD5 in RA patient-derived FLS undergoing apoptosis. Finally, overexpression of PDCD5 led to enhanced apoptosis and activation of caspase-3 in triptolide-treated FLS. We propose that PDCD5 may be involved in the pathogenesis of RA. These data also suggest that PDCD5 may serve as a therapeutic target to enhance sensitivity to antirheumatic drug-induced apoptosis in RA.

Proteínas Reguladoras de Apoptose/fisiologia , Apoptose , Artrite Reumatoide/genética , Fibroblastos/patologia , Proteínas de Neoplasias/fisiologia , Membrana Sinovial/metabolismo , Membrana Sinovial/patologia , Anti-Inflamatórios não Esteroides/farmacologia , Apoptose/genética , Proteínas Reguladoras de Apoptose/genética , Proteínas Reguladoras de Apoptose/metabolismo , Artrite Reumatoide/metabolismo , Artrite Reumatoide/patologia , Caspase 3/metabolismo , Células Cultivadas , Diterpenos/farmacologia , Compostos de Epóxi/farmacologia , Fibroblastos/metabolismo , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo , Fenantrenos/farmacologia , Distribuição Tecidual , Transfecção
Zhonghua Wai Ke Za Zhi ; 43(8): 499-501, 2005 Apr 15.
Artigo em Chinês | MEDLINE | ID: mdl-15938905


OBJECTIVE: To examine the two to eight-year results associated with the use of this hip system. METHODS: Between November 1996 and January 2001, 56 revision total hip arthroplasties with insertion of a Zweymüller BICON-PLUS cup and a cementless SLR-PLUS stem were performed in 55 consecutive patients (average age, fifty-nine years old, range, thirty to eighty years old). RESULTS: At the time of the latest follow-up, 23 patients (24 hips) had lost to follow-up, leaving 32 patients for a minimum of 2 years of clinical and radiographical follow-up. The mean follow-up time was 4 years. Only 3 peri-operative complications occurred, including 1 great trochanter fracture during implant removal, 1 dislocation 2 d after operation with successful closed reduction, and 1 deep wound infection which necessitated reentry and debridement. No femoral stems or cups needed re-revision surgery. The average Harris hip score increased from 40.6 points preoperatively to 80.4 points at final follow-up. Radiographic analysis demonstrated that the position of stems and cups was unchanged and all showed radiographic evidence of bone ingrowth. CONCLUSION: The favourable medium-term clinical results with the cementless Zweymüller hip system show that it is suitable as a revision system for total hip failures of both cemented and cementless primary fixation.

Artroplastia de Quadril , Substitutos Ósseos , Prótese de Quadril , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação
Zhonghua Wai Ke Za Zhi ; 41(1): 37-40, 2003 Jan.
Artigo em Chinês | MEDLINE | ID: mdl-12760756


OBJECTIVE: To study the early diagnosis and treatment of pulmonary embolism (PE) after total joint replacement (TJR). METHODS: >From April 1987 to December 2001, we performed 1,336 total knee replacements (TKR(s)) in 926 patients and 1,745 total hip replacements (THR(s)) in 1,566 patients. In this group there were 5 PE patients after operation. Two patients died (all after TKR), and 3 patients salvaged successfully (2 after TKR, 1 after THR). RESULTS: The total incidence of PE after TJR was 0.2% (5/2,492), the incidence of PE after TKR was 0.4% (4/926), and the incidence of PE after THR was 0.06% (1/1,556). In the patients who suffered PE, 2 died. The incidence of PE before 2000 was 0%. CONCLUSIONS: Death after total joint replacement is due to pulmonary embolism (PE), especially massive PE. The incidence of PE after TKR is higher than that after THR. Pulmonary angiography is the gold standard for the diagnosis of PE. With more understanding on PE and more popularity of joint replacement, the diagnosis of PE after TJR is increased. More attention should be paid to PE in the patients with high risk after TJR.

Artroplastia do Joelho/efeitos adversos , Embolia Pulmonar/diagnóstico , Idoso , Feminino , Humanos , Incidência , Pessoa de Meia-Idade , Embolia Pulmonar/epidemiologia , Embolia Pulmonar/terapia