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1.
BACKGROUND: Antigen-specific lymphocyte proliferation of synovial fluid mononuclear cells (SF MNC) has been reported repeatedly in reactive arthritis and Lyme arthritis; however, less information is available on serial investigations of SF MNC in the same patients. METHODS: In this study, the synovial lymphocyte proliferation to Yersinia, Chlamydia, Shigella and Borrelia burgdorferi was investigated sequentially at different time points in 28 patients with reactive arthritis, undifferentiated oligoarthritis or Lyme arthritis responding to one of these bacteria. RESULTS: The same bacterium was always recognized in arthritis triggered by Chlamydia, Shigella or Borrelia, with much variation in the proliferative response. Only the Yersinia-specific responses changed specificity, suggesting that the proliferative response to Yersinia is non-specific in some patients. CONCLUSIONS: Our data support the concept of a local antigen-specific T-cell response in reactive arthritis or Lyme arthritis but not the concept suggested by others that a switch to an autoimmune response takes place in long- standing disease.   相似文献   

2.
Summary In the pathogenesis of late Lyme borreliosis the relative importance of the causative organism,Borrelia burgdorferi, and the immune response of the host, including autoimmune phenomena, is not yet known. We describe a 7-year-old boy with Lyme arthritis from whom two synovial fluid samples were obtained 5 months apart and up to 17 months after the first appearance of arthritis. Both synovial fluid specimens were shown to contain borrelial DNA by nested polymerase chain reaction for the amplification of portions of the genes for flagellin and OspA. Thus,Borrelia burgdorferi may persist within the joint even during late stages of the disease.  相似文献   

3.
A study was made to find out whether immunoglobulins are produced locally in synovial tissue in patients with Lyme borreliosis. Synovial fluid specimens from six patients with Lyme borreliosis were compared with those from 25 patients with rheumatoid arthritis, psoriatic arthritis, unspecified oligoarthritis or arthrosis (control group). Agarose electrophoresis revealed local oligoclonal IgG and IgM bands in the synovial fluid of two patients with Lyme borreliosis, but no local bands were observed in the control group. An index for local synthesis of immunoglobulins in synovial fluid was calculated in analogy with the IgG index for cerebrospinal fluid. The two patients with Lyme borreliosis in whom oligoclonal bands were seen in the synovial fluid showed the highest synovial fluid IgG indices and the highest concentrations of specific IgG antibodies against Borrelia spirochetes in synovial fluid. The presence of local oligoclonal immunoglobulin bands and a high synovial fluid IgG index suggest that immunoglobulins are produced locally within the synovial tissue in some patients with Lyme borreliosis. The increase in immunoglobulins may be a response to a local invasion of Borrelia spirochetes or may represent an immune reaction which continues after the spirochetes no longer are viable.  相似文献   

4.
We report herein the first known incidence of the emergence of borrelial arthritis following autologous chondrocyte transplantation for repair of a cartilage defect. The patient had no recent manifestation of Lyme borreliosis, but 15 years earlier had had an expanding erythematous lesion after a tick bite. The current infection resulted in massive joint swelling, elevated body temperature, dissemination of the graft, and transplant failure. Results of routine bacteriologic studies were negative. A diagnosis of Lyme arthritis was first considered following the detection of Borrelia-specific serum antibodies. Additional evidence was provided when borrelial DNA sequences were detected in the synovial fluid through polymerase chain reaction. The diagnosis was confirmed by culture of Borrelia burgdorferi from the synovial fluid. The possibility of a dormant borrelial infection should be considered in patients who undergo repair of cartilage defects with autologous chondrocyte transplantation. We recommend that synovial fluid and joint tissue be screened for the presence of viable Borrelia before transplantation of an autologous graft.  相似文献   

5.
Objective. To compare the detection rates of chromosomal flagellin gene from Borrelia burgdorfen in synovial tissue (ST) and synovial fluid (SF) using polymerase chain reaction (PCR) techniques. Methods. B burgdorferi DNA was sought in SF and ST from 12 consecutive patients with Lyme arthritis and from 29 patients with noninfectious diseases (controls). Results. No DNA amplification was observed in samples obtained from the 29 control patients, whereas B burgdorferi DNA was detected in all ST and/or SF samples from the 12 patients with Lyme arthritis. Results from 1 ST sample were not interpretable because of PCR inhibitors. Among the 11 remaining patients, 10 had positive ST samples, whereas only 4 had positive SF samples (P < 0.05). Conclusion. These data suggest that detection of chromosomal B burgdorferi DNA may be more efficient in ST than SF.  相似文献   

6.
OBJECTIVE: To determine whether Borrelia burgdorferi DNA may be detected in synovial tissue from patients with Lyme arthritis who have persistent synovial inflammation after antibiotic treatment. METHODS: Synovial specimens obtained at synovectomy from 26 patients with antibiotic treatment-resistant Lyme arthritis and from 10 control subjects were tested for B burgdorferi DNA using 3 primer-probe sets that target genes encoding outer surface proteins A or B or a flagellar protein (P41) of the spirochete. RESULTS: The 26 patients with Lyme arthritis, who had received antibiotic therapy for a mean total duration of 8 weeks prior to synovectomy, and the 10 control subjects each had negative polymerase chain reaction (PCR) results in synovial samples. When the samples were spiked with approximately 1-10 B burgdorferi, all but 1 had positive PCR results, suggesting that spirochetal DNA could have been detected in most of the unspiked samples if it had been present. CONCLUSION: These results indicate that synovial inflammation may persist in some patients with Lyme arthritis after the apparent eradication of the spirochete from the joint with antibiotic therapy.  相似文献   

7.
Brucellosis is an important cause of paediatric septic arthritis in endemic areas. Because the Gram stain is frequently negative and culture results are unavailable at the time of the patient’s admission, the diagnosis of brucellar arthritis is usually entertained on the bases of epidemiological considerations and cytological examination of the synovial fluid aspirate. The aim of this study was to assess the sensitivity of a synovial fluid leukocyte count >50 000 WBC/mm3 for detecting culture-proven brucellar arthritis in children. The medical records of all children with brucellar arthritis diagnosed since 1994 in a hospital serving an endemic area for brucellosis in southern Israel were reviewed. Nine patients (six males and three females), aged 3–14 years, were identified. A single joint was affected in all patients. The median leukocyte count in the synovial fluid was 9500 WBC/mm3 (range 300–61 500 WBC/mm3), and in eight of the nine patients it was less than 50 000 WBC/mm3. Brucella melitensis was recovered from the synovial fluid culture in all patients. The diagnosis of brucellar septic arthritis cannot be excluded on the basis of a low leukocyte count in the joint aspirate. A high index of suspicion and use of modern culture techniques are recommended to improve the diagnosis of brucellar arthritis. Received: 24 March 2001 / Accepted: 29 October 2001  相似文献   

8.
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10.
Summary Using a limiting dilution system, frequencies of Borrelia burgdorferi-reactive T cells were determined in the blood and synovial fluid of four patients with chronic Lyme arthritis (LA), one patient with acrodermatitis chronica atrophicans (ACA), two patients with other inflammatory joint diseases, and two healthy individuals. B. burgdorferi-reactive precursor T cells ranged from 1/750 to 1/8 220 in case of LA and ACA patients and from 1/820 to 1/31 400 in case of controls. In vivo activated B. burgdorferi-reactive T cells were almost absent in control subjects. With one exception, they were detected in LA patients at frequencies ranging from 1/1 300 to 1/15 400. Interestingly, even after successful antibiotic therapy of LA patients, similar frequencies of in vivo activated B. burgdorferi-reactive T cells were observed in the peripheral blood, provided that low cell concentrations were used for culture. At higher cell numbers, the fraction of B. burgdorferi-reactive T cells apparently dropped, suggesting regulatory phenomena.  相似文献   

11.
Borrelia burgdorferi in joint fluid in chronic Lyme arthritis   总被引:15,自引:0,他引:15  
Although indirect evidence suggests that chronic Lyme arthritis is caused by persistent infection with Borrelia burgdorferi, direct visualization has been lacking. We report the demonstration of B. burgdorferi from synovial fluid aspirated from the right knee of a 31-year-old man with Lyme arthritis for more than 1 year. After 6 days, culture medium inoculated with synovial fluid showed one motile and several nonmotile spirochetes. Direct immunofluorescence staining showed reactivity with anti-B. burgdorferi serum. Spirochetes were not seen in subcultured material. The patient's arthritis improved with high-dose intravenous penicillin. Identification of B. burgdorferi from the joint fluid of a patient with long-standing arthritis supports the concept that the arthritis is due to persistent infection.  相似文献   

12.

Objective

More than 50% of patients with synovitis involving 1–4 joints remain classified as having undifferentiated oligoarthritis (UOA) after 1 year of disease. The clinical presentation is often similar to that of reactive arthritis (ReA) and other spondylarthropathies or to Lyme arthritis. We therefore determined how often Chlamydia trachomatis (Ct) and Borrelia burgdorferi (Bb) can be identified in patients with UOA, by using an extensive laboratory approach.

Methods

We prospectively studied 52 patients with UOA who presented at an early synovitis clinic in a region highly endemic for Lyme disease. Patients were examined by standardized clinical and immunoserologic procedures. Synovial fluid was screened for the presence of Ct and Bb DNA by polymerase chain reaction (PCR). Urine was tested for Ct DNA by ligase chain reaction, and serum was tested for Ct antibodies by enzyme‐linked immunosorbent assay and Bb antibodies by hemagglutination test and Western blotting. PCR results in the UOA patients were compared with the results in cohorts of patients with definite rheumatoid arthritis (RA), Lyme arthritis, and Chlamydia‐induced arthritis (CIA).

Results

In the synovial fluid of 9 of 52 patients with UOA (17%), we found Ct DNA, and in 6 of the 52 patients (12%), Bb DNA was found. The frequency of bacteria‐specific DNA was 50% (7 of 14) in CIA patients and 69% (11 of 16) in patients with Lyme arthritis. No Bb or Ct DNA was found in the synovial fluid of the 31 RA patients.

Conclusion

With optimized PCR protocols, it is possible to detect considerable levels of Bb and Ct DNA in the synovial fluid of patients with UOA. Although the presence of bacterial DNA does not unequivocally prove its etiologic significance, we suggest that at least one‐third of patients with UOA may have a form of ReA that involves asymptomatic primary infection.
  相似文献   

13.
OBJECTIVES—To identify possible sites of bacterial persistence in patients with treatment resistant Lyme arthritis. It was determined whether Borrelia burgdorferi DNA may be detectable by polymerase chain reaction (PCR) in synovial membrane (SM) when PCR results from synovial fluid (SF) had become negative after antibiotic therapy.
METHODS—Paired SF and SM specimens and urine samples from four patients with ongoing or recurring Lyme arthritis despite previous antibiotic therapy were investigated. A PCR for the detection of B burgdorferi DNA was carried out using primer sets specific for the ospA gene and a p66 gene of B burgdorferi.
RESULTS—In all four cases, PCR with either primer set was negative in SF and urine, but was positive with at least one primer pair in the SM specimens. In all patients arthritis completely resolved after additional antibiotic treatment.
CONCLUSIONS—These data suggest that in patients with treatment resistant Lyme arthritis negative PCR results in SF after antibiotic therapy do not rule out the intraarticular persistence of B burgdorferi DNA. Therefore, in these patients both SF and SM should be analysed for borrelial DNA by PCR as positive results in SM are strongly suggestive of ongoing infection.

Keywords: Lyme arthritis; polymerase chain reaction; synovial membrane; synovial fluid  相似文献   

14.
We examined synovial fluid samples from 14 patients with Lyme arthritis for the presence of neutrophil chemotactic factors. Thirteen of the synovial fluids stimulated chemotaxis of normal human neutrophils. The chemotactic activity was heat-sensitive and was not inhibited by antibody to C5a or antibody to interleukin-8, or by a competitive inhibitor of the chemotactic peptide f-Met-Leu-Phe. A culture supernatant of Borrelia burgdorferi also contained neutrophil chemoattractants. Chromatography demonstrated that the chemoattractants in the synovial fluid samples were different from those in the B burgdorferi culture supernatant. One of the major chemotactic factors in Lyme disease synovial fluid had a calculated molecular weight of 13,900. We conclude that a novel, host-derived chemoattractant is present in the synovial fluid of patients with Lyme disease.  相似文献   

15.
ObjectivesTo describe the clinical and microbiological characteristics and outcomes after antibiotic treatment of a national cohort of patients with Lyme arthritis confirmed by PCR testing on synovial fluid and by serology, when available.MethodsUsing the French National Reference Center for Borrelia database, patients with a positive PCR on synovial fluid for Borrelia were identified. Patient clinical and biological characteristics were reviewed from patient records. Long-term outcomes after treatment were studied through a questionnaire and with follow-up data.ResultsAmong 357 synovial fluid testing by PCR between 2010 and 2016, 37 (10.4%) were positive for Borrelia. Patients’ median age was 36 years (range 6–78) with 61% of men and 28% patients under 18. The presentation was monoarticular in 92% and the knee was involved in 97%. Contrary to the Borrelia species repartition in European ticks, B. burgdorferi sensu stricto was the most prevalent species found in synovial fluid (54%) followed by B. azfelii (29%) and B. garinii (17%). Antibiotic treatments were mainly composed of doxycycline (n = 24), ceftriaxone (n = 10) and amoxicillin (n = 6), for a median duration of 4 weeks (range 3–12). Despite a properly conducted treatment, 34% of patients (n = 12) developed persistent synovitis for at least 2 months (median duration 3 months, range 2–16). Among those, 3 developed systemic inflammatory oligo- or polyarthritis in previously unaffected joints with no signs of persistent infection (repeated PCR testing negative), which mandated Disease-Modifying Antirheumatic Drugs (DMARD) introduction, leading to remission.ConclusionIn France and contrary to ticks ecology, Lyme arthritis is mainly caused by B. burgdorferi sensu stricto. Despite proper antibiotic therapy, roughly one third of patients may present persistent inflammatory synovitis and a small proportion may develop systemic arthritis. In such cases, complete remission can be reached using DMARD.  相似文献   

16.
We report on three children with pauciarticular arthritis in whom the clinical picture and serology were compatible with both arthritis reactive to infection with Yersinia or Salmonella and with Lyme arthritis. Results of analysis of synovial fluid by polymerase chain reaction for enterobacterial or borrelial sequences were negative. Immunofluorescence with specific antibodies revealed the presence of amorphous enterobacterial antigens in synovial fluid cells. Since this staining did not reveal enterobacterial morphology, we infected synovial fluid cells of two children with juvenile rheumatoid arthritis in vitro with Yersinia or Salmonella. After 24 h typical rods were observed, but after about 1 week amorphous antigen similar to what had been found in the three patients was seen. In cases of reactive arthritis with ambiguous results of serological testing the diagnosis may be confirmed by demonstration of enterobacterial antigens in synovial fluid.  相似文献   

17.

Objective

: To assess the role of matrix metalloproteinases (MMPs) in cartilage and bone erosions in Lyme arthritis

Methods

We examined synovial fluid from 10 patients with Lyme arthritis for the presence of MMP‐2, MMP‐3, MMP‐9, and “aggrecanase” activity using gelatinolytic zymography and immunoblot analysis. We developed an in vitro model of Lyme arthritis using cartilage explants and observed changes in cartilage degradation in the presence of Borrelia burgdorferi and/or various protease inhibitors.

Results

Synovial fluid from patients with Lyme arthritis was found to contain at least 3 MMPs: gelatinase A (MMP‐2), stromelysin (MMP‐3), and gelatinase B (MMP‐9). In addition, there was evidence in 2 patients of “aggrecanase” activity not accounted for by the above enzymes. Infection of cartilage explants with B burgdorferi resulted in induction of MMP‐3, MMP‐9, and “aggrecanase” activity. Increased induction of these enzymes by B burgdorferi alone was not sufficient to cause cartilage destruction in the explants as measured by glycosaminoglycan (GAG) and hydroxyproline release. However, addition of plasminogen, which can act as an MMP activator, to cultures resulted in significant GAG and hydroxyproline release in the presence of B burgdorferi. The MMP inhibitor batimastat significantly reduced the GAG release and completely inhibited the collagen degradation.

Conclusion

MMPs are found in synovial fluids from patients with Lyme arthritis and are induced from cartilage tissue by the presence of B burgdorferi. Inhibition of MMP activity prevents B burgdorferi–induced cartilage degradation in vitro.
  相似文献   

18.
We report the case of a 62-yr-old man who presented with Lymepericarditis leading to cardiac tamponade shortly followed byan arthritis. IgM and IgG antibodies to Borrelia burgdorferiwere demonstrated in serum by indirect immunofluorescence. Borreliaburgdorferi was demonstrated and identified in pericardial fluidby indirect immunofluorescence using serum from a patient withproven Lyme disease and by a monoclonal antibody immuno-goldsilver stain. Spirochetes were also found in synovial biopsiesusing a silver stain. The tamponade was treated with pericardiocentesis;the arthritis was treated with intravenous ceftriaxone (2 gonce daily) for 14 days. The patient recovered completely withindays of commencing treatment. This case report demonstratesthat borrelial infection may lead to pericarditis and cardiactamponade. KEY WORDS: Borrelia burgdorferi infection, Arthritis, Pericarditis, Tamponade  相似文献   

19.
In 27 patients with early Lyme disease, the mean response of peripheral blood mononuclear cells (PBMC) to Lyme spirochetal Borrelia burgdorferi antigens (723 counts per minute) was similar to that of control subjects. During convalescence, 2-3 weeks later, the patients' mean response was significantly higher (2,075 cpm, P less than 0.008). Compared with those with early disease, the PBMC of 22 patients with Lyme arthritis reacted even more to B burgdorferi (2,923 cpm, P less than 0.0004), and, by far, the greatest response was in concomitantly obtained synovial fluid mononuclear cells (15,238 cpm, P less than 0.001). The PBMC of patients with early Lyme disease reacted slightly less to phytohemagglutinin and pokeweed mitogen than those of normal control subjects, but patients with arthritis had greater than normal mitogen responses. In contrast, mitogen reactivity among synovial fluid cells was markedly decreased and correlated inversely with the response to antigen. Thus, in patients with Lyme disease, the antigen-specific responses of mononuclear cells increase as the disease progresses, and in those with arthritis, the greatest reactivity to antigen is found in cells in the inflamed joint.  相似文献   

20.
Lyme-Arthritis is one of the most frequent manifestations of Lyme disease. Transient arthritides may already develop in the early disease stage. However, typical Lyme arthritis manifests weeks to months after the infection as intermittent mon- or oligoarthritis predominantly affecting the knees. Massive knee effusions may lead to popliteal cysts that often rupture. Chronic arthritides are rare.The diagnosis of Lyme arthritis mainly is based on clinical grounds and confirmed by laboratory tests. Direct detection of the causing agent by culture is difficult and not suitable for clinical use. With polymerase chain reaction based assays in up to 80% of untreated patients with Lyme arthritis B. burgdorferi DNA can be detected in joint fluid or synovial membrane specimens. While this method is not widely available yet it will become a routine diagnostic tool in Lyme arthritis in the near future.Borrelia serology is still the most important laboratory test. A negative serology almost certainly rules out Lyme arthritis. A positive serology alone, however, does not proof Lyme disease and must be critically interpreted in context with clinical symptoms.  相似文献   

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