Abstract：
OBJECTIVE:To quantify the activated B cells in the peripheral blood and salivary glands of patients with Sjögren's syndrome (SS) by analyzing the expression of RP105 molecule on the B cells. METHODS:The expression of RP105 on the peripheral blood B cells of patients with SS (19 cases) was analyzed by flow cytometry. RP105-positive and negative B cells were sorted and cultured in vitro and the amount of immunoglobulins (IgG and IgM) produced in the supernatant was measured by enzyme-linked immunosorbent assay (ELISA). Salivary gland biopsy samples from 9 SS patients were histologically evaluated and the sequential frozen sections were separately immunostained by anti-RP105 and anti-CD20 monoclonal antibodies. RESULTS:A significantly higher proportion of peripheral blood RP105-negative B cells was found in SS patients than in healthy individuals. RP105-negative, but not positive, B cells from SS patients were capable of producing IgG and IgM spontaneously in vitro, which was enhanced by the addition of Staphylococcus aureus Cowan I strain (SAC) or IL-6. Salivary glands from 2 of 9 SS patients were found to have lymphoid follicles whose germinal centers consisted of RP105-negative B cells. Moreover, a larger proportion of B cells extensively infiltrating the area other than lymphoid follicles was also RP105-negative. CONCLUSION:RP105-negative B cells, a subset of highly activated and well differentiated B cells, which are increased in number in the peripheral blood and extensively infiltrate salivary glands, may be responsible for the production of class-switched immunoglobulin in SS. In addition, those cells might be associated with the inflammation and tissue damage of the salivary glands.
journal_name
Clin Exp Rheumatoljournal_title
Clinical and experimental rheumatologyauthors
Kikuchi Y,Koarada S,Nakamura S,Yonemitsu N,Tada Y,Haruta Y,Morito F,Ohta A,Miyake K,Horiuchi T,Nagasawa Ksubject
Has Abstractpub_date
2008-01-01 00:00:00pages
5-12issue
1eissn
0392-856Xissn
1593-098Xpii
2238journal_volume
26pub_type
杂志文章abstract：:An open-label, one-year study was conducted to evaluate the safety and clinical response to leflunomide and methotrexate combination therapy for rheumatoid arthritis. Study results revealed tolerable safety, no significant pharmacokinetic interactions between methotrexate and leflunomide, and suggested improved clinic...
journal_title：Clinical and experimental rheumatology
pub_type： 临床试验,杂志文章
doi：
更新日期：1999-11-01 00:00:00
abstract：OBJECTIVES:To determine the types and to assess the role of auditory evoked potentials and otoacoustic emissions in early detection of hearing abnormalities in Behçet's disease (BD) patients. Their correlations with disease activity were also considered. METHODS:Thirty patients with BD and thirty apparently sex- and a...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVES:To determine the clinical characteristics of simultaneous occurrence of antitopoisomerase (ATA) and anticentromere (ACA) autoantibodies in systemic sclerosis (SSc). METHODS:Data of patients (n=4,687) fulfilling the ACR criteria for SSc and followed in the EULAR Scleroderma Trials and Research (EUSTAR) cohor...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2013-03-01 00:00:00
abstract：OBJECTIVES:To investigate the efficacy and safety of low-dose etanercept treatment after clinical remission of ankylosing spondylitis (AS) in the real world. METHODS:Data on 134 AS patients who were treated with etanercept for more than 12 months and achieved clinical remission (BASDAI<4 and CRP<0.5 mg/dL) were extrac...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2016-07-01 00:00:00
abstract：OBJECTIVE:In patients with rheumatoid arthritis (RA) of longer duration, glucocorticoid receptor (GR) down-regulation has been reported without any change in cortisol levels. This phenomenon might play a role in the aetio-pathogenesis of RA. Therefore we studied GR expression, as well as the serum cortisol levels, in p...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：OBJECTIVES:The aim of this study is to compare clinical features and treatment of young onset rheumatoid arthritis with late-onset rheumatoid arthritis. METHODS:Nine thousand five hundred forty-one patients with rheumatoid arthritis (RA) enrolled in the national database of the German Collaborative Arthritis Centres i...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2013-03-01 00:00:00
abstract：:Neuropathic arthritis is a destructive arthropathy frequently associated with loss of proprioception. A third of patients, however, may have no demonstrable neurological deficit. Patients with diabetes, syphilis, syringomyelia and other neuropathies are particularly prone to developing this joint disease. The diagnosi...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,评审
doi：
更新日期：1994-05-01 00:00:00
abstract：OBJECTIVES:In systemic sclerosis (SSc), B cell hyperactivation and abnormality are considered to play an important role in the disease pathophysiology. We aimed to clarify if the abnormal activation of B cells involves inhibitory FcγRIIB on B cells in SSc patients. METHODS:Blood samples were collected from 76 SSc pati...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2019-07-01 00:00:00
abstract：OBJECTIVES:To determine the prevalence of and risk factors for avascular necrosis (AVN) in systemic lupus erythematosus (SLE). METHODS:MEDLINE, CINAHL, Web of Science, EMBASE and Cochrane Library were searched from inception to July, 2015 and a random effects model was used to combine frequencies; study quality was as...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,meta分析,评审
doi：
更新日期：2017-07-01 00:00:00
abstract：:Primary Sjögren's syndrome (pSS) is often considered a B cell-mediated disease, yet the precise role of B cells in the pathogenesis is not fully understood. This is exemplified by the failure of multiple clinical trials directed at B cell depletion or inhibition. To date, most prognostic markers for severe disease out...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,评审
doi：
更新日期：2020-07-01 00:00:00
abstract：:Herewith we provide a critical digest of the recent literature on systemic sclerosis. The most relevant studies published over the last two years have been reviewed, with particular focus on the diagnosis, pathogenesis and treatment of the disease. ...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,评审
doi：
更新日期：2013-03-01 00:00:00
abstract：OBJECTIVE:To determine the incidence and clinical presentation of Wegener's granulomatosis (WG) in Finland during the 20-year period 1981-2000. METHODS:We performed a study with retrospective data retrieval using the hospital discharge register in Finland. All available hospital case reports were reviewed. We included...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2008-05-01 00:00:00
abstract：:A meta-analysis showed that methodological differences in prevalence studies such as a sample survey design or census design may be responsible for some of the variance in BS prevalence reported across countries, in addition to a true geographic variation. Efforts towards developing a data driven core set of outcome m...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,评审
doi：
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVES:Histone H3 lysine 4 trimethylation(H3K4me3) is an important epigenetic modification and associated with active transcription in multiple organisms. In systemic lupus erythematosus (SLE), global and gene-specific DNA methylation changes have been demonstrated to occur. However, to date, our knowledge about th...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2010-03-01 00:00:00
abstract：OBJECTIVE:We evaluated the cost-effectiveness of infliximab therapy in Finnish RA patients in a real-life clinical setting and identified factors influencing it, using the national register of biological treatment (ROB-FIN). METHODS:A cost-utility analysis was performed, derived from EQ-5D, and related to HAQ score an...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2008-11-01 00:00:00
abstract：OBJECTIVES:To determine the preferred treatment for patients with Behçet's syndrome. METHODS:A questionnaire was given to all participants of the 2010 meeting of the International Society for Behçet's Disease. RESULTS:Forty-one respondents from 6 different subspecialties. In the case of a patient with (severe) poster...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2012-05-01 00:00:00
abstract：:Patients with alkaptonuria lack homogentisate 1,2-dioxygenase leading to retention of homogentistic acid (HGA) in body fluids and eventually to tissue deposition of oxidation products, giving rise to the clinical picture of ochronosis. Ascorbic acid is a known inhibitor of the enzyme which catalyses the oxidation of h...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：1988-07-01 00:00:00
abstract：OBJECTIVES:Familial Mediterranean fever (FMF) is characterised by recurrent attacks of fever and serositis. It may affect the peritoneum, pleura, synovia and the skin. Usually the liver is intact in FMF. Recently, this concept was challenged by some groups which claimed that hepatitis is a feature of FMF and that non-a...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,评审
doi：
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVES:The Systemic Lupus International Collaborating Clinics (SLICC) group has recently proposed a new set of criteria for the classification of systemic lupus erythematosus (SLE). We aimed to compare the sensitivity and specificity of the new SLICC criteria with those of the American College of Rheumatology (ACR)...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章,多中心研究
doi：
更新日期：2014-05-01 00:00:00
abstract：OBJECTIVES:To evaluate by ultrasound (US) the frequency and reliability of peritenon extensor tendon inflammation (PTI) and intra articular synovitis (IAS) in metacarpophalangeal joints (MCPj) of psoriatic arthritis (PsA) patients. METHODS:27 PsA patients with clinical involvement of MCPj were consecutively included. ...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVES:Limited data exist regarding the incidence rate and relative risks of major adverse cardiovascular events in women with lupus who have successfully delivered compared to those who have not been pregnant. METHODS:A retrospective, population-based matched cohort study was performed on women with lupus from 20...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVE:To evaluate if methotrexate (MTX) can slow disease progression, as determined radiographically, in comparison to other disease modifying drugs in rheumatoid arthritis (RA) patients. MATERIALS AND METHODS:Pairs of hand and wrist radiographs from 30 patients treated with MTX and 30 treated with D-penicillamine...
journal_title：Clinical and experimental rheumatology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1997-05-01 00:00:00
abstract：OBJECTIVES:To assess the efficacy and safety of tacrolimus in combination with corticosteroids in patients with immune-mediated necrotising myopathy. METHODS:The medical records of 20 hospitalised patients with immune-mediated necrotising myopathy (IMNM) who had received tacrolimus combined with oral prednisone from J...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2019-09-01 00:00:00
abstract：OBJECTIVE:To evaluate the applicability of the WHO densitometric criteria for the diagnosis of spinal osteoporosis in men and to compare it with women with vertebral fractures, as well as to analyze the role of vertebral dimensions in the development of spinal fractures. METHODS:For these purposes we analyzed, using D...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：:There is a clear need to assess patients presenting with a new onset of inflammatory peripheral arthritis and/or back pain early. Indeed, the clinical presentation of rheumatoid arthritis (RA) is not always characteristic but its early diagnosis is crucial to prevent irreversible structural damage. Likewise low back p...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2009-07-01 00:00:00
abstract：:Prostaglandin (PG)E2, cyclic adenosine monophosphate (cAMP), white blood cells (WBC), total protein (TP), total complement activity (CH50) and beta-2-microglobulin (beta-2-m) were measured at baseline and after eight days in the synovial fluid (SF) of 16 patients affected with knee-joint effusion due to various arthro...
journal_title：Clinical and experimental rheumatology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1989-05-01 00:00:00
abstract：OBJECTIVE:This work studies the effects of Cyclosporine A (CsA) upon the activation and proliferation of mononuclear cells (MNC) from the peripheral blood (PB) of patients with chronic autoimmune arthritis and from healthy controls, and from the synovial fluid (SF) of patients. METHODS:In vitro studies of activation, ...
journal_title：Clinical and experimental rheumatology
pub_type： 临床试验,杂志文章
doi：
更新日期：1996-03-01 00:00:00
abstract：OBJECTIVE:Earlier studies have shown that patients suffering from juvenile arthritis (JA) have reduced serum concentrations of antioxidants compared with healthy controls. The aim of this study was to investigate whether the lower serum concentration of antioxidants found in these patients could be explained by a low d...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:We report herein the results of the cross-cultural adaptation and validation into the Czech language of the parent's version of two health related quality of life instruments. The Childhood Health Assessment Questionnaire (CHAQ) is a disease specific health instrument that measures functional ability in daily living a...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：OBJECTIVES:The Schnitzler syndrome is a rare inflammatory disorder, with a chronic urticaria-like rash and an IgM (rarely IgG) monoclonal gammopathy as cardinal features. Interleukin-1 β is regarded as the key mediator and the interleukin-1 receptor antagonist anakinra has been proposed as first-line treatment. This ca...
journal_title：Clinical and experimental rheumatology
pub_type： 杂志文章
doi：
更新日期：2017-01-01 00:00:00
