Search for: rheumatoid arthritis methotrexate autoimmune disease biomarker gene expression GWAS HLA genes non-HLA genes
| ID | PMID | Title | PublicationDate | abstract |
|---|---|---|---|---|
| 2598530 | [Spastic paraplegia in Sjögren's syndrome associated with mixed connective tissue disease | 1989 Aug | A case of spastic paraplegia in Sjögren's syndrome associated with mixed connective tissue disease is reported. In this 49-year-old woman spastic gait and arthralgia developed at the age of 23 years and progressed chronically. On neurologic examination, supranuclear paresis of facial nerve was observed. Deep tendon reflexes were hyperactive in the jaw, upper and lower extremities. Serological tests showed that anti-nuclear, anti-RNP, and anti-SS-A antibodies were positive. Spinal fluid analysis showed that rate of de novo central nervous system (CNS) IgG synthesis was increased, and C3/C4 ratio was elevated. CT scans of the brain showed calcifications at bilateral basal ganglia, dentate nucleus and cerebellar vermis. An electroencephalogram revealed diffuse slowing, and 123I-IMP brain scans revealed decreased cerebral blood flow. MRI of brainstem and cervical cord were normal. These findings suggested that corticospinal tracts upper the brainstem were severely affected, and that there were multifocal latent lesions in the CNS. Mechanisms of the CNS involvement were supposed to be both autoimmune abnormality in the CNS, and vascular impairment. | |
| 3495875 | Antibodies against SS-B/La and SS-A/Ro antigens in patients with primary Sjögren's syndro | 1986 | An enzyme-linked immunosorbent assay for detection of serum antibodies against SS-B/La is described, and the frequency of anti-SS-B/La antibodies in 103 blood donors is tested. 67% of patients with primary Sjögren's syndrome (n = 21), verified by at least two abnormal tests for xerostomia as well as keratoconjunctivitis sicca (the Copenhagen criteria), were found to have IgG anti-SS-B antibodies, and 71% had anti-SS-A/Ro precipitating antibodies, when tested by Ouchterlony immunodiffusion. All patients with anti-SS-B/La antibodies had anti-SS-A/Ro antibodies. Anti-SS-A/Ro and -SS-B/La antibodies correlated with the presence of rheumatoid factor, antinuclear antibodies and hypergammaglobulinemia. The clinical manifestations of pseudolymphoma, Raynaud's phenomenon, fatigue and arthralgia, were more frequent in patients with anti-SS-B/La and/or -SS-A/Ro antibodies. | |
| 3348828 | Acquired immunodeficiency syndrome mimicking Sjögren's syndrome and systemic lupus erythe | 1988 Feb | We describe a patient in whom the diagnosis of transfusion-associated acquired immunodeficiency syndrome (AIDS) was delayed because her clinical symptoms were similar to those of systemic lupus erythematosus and Sjögren's syndrome and because of a false-negative result on a Western blot test for human immunodeficiency virus. The importance of using different diagnostic tests for AIDS and the pitfalls in diagnosing AIDS in patients who appear to have connective tissue disease are discussed. | |
| 2463667 | Whipple's disease in a patient with longstanding seronegative polyarthritis. | 1988 | We describe a middle-aged woman with Whipple's disease. She suffered from a seronegative rheumatoid-like polyarthritis for more than 20 years before the diagnosis of Whipple's disease was made. This case shows that arthritis may be a feature of occult Whipple's disease. Without gastrointestinal symptoms, diagnosis is very difficult. Diagnosis is important because treatment can rapidly improve this life-threatening disease. | |
| 3238362 | IgA and rheumatoid factor in ankylosing spondylitis. | 1988 | The elevated serum IgA in seronegative arthritis and psoriasis is not well understood. We examined 112 patients with ankylosing spondylitis for IgA RF, IgG RF and IgM RF by an ELISA method. Two, two and ten patients were RF positive in each Ig class, respectively. Presence of RF was not correlated with Ig concentrations, with presence of HLA-B27, nor with clinical disease signs. It was concluded that RF may be seen in ankylosing spondylitis, but the increased IgA concentrations in such patients are not IgA RF. | |
| 2070561 | Maintained pregnancy levels of oestrogen afford complete protection from post-partum exace | 1991 Jul | Pregnancy is known to influence the course of rheumatoid arthritis (RA) in women, as well as type II collagen-induced arthritis (CIA) in DBA/1 mice. A characteristic feature is the remission during gestation and the exacerbation of the diseases during the post-partum period. In the case of CIA in DBA 1 mice, two hormonal changes have been assumed to be critical for the induction of the post-partum flare: (i) the fall in steroid hormone levels from those present during pregnancy; and (ii) surges of prolactin (PRL) release at and after delivery. Our results show that treatment with oestradiol during a short period immediately after parturition protects the mouse from a post-partum flare of the disease, and that treatment with bromocriptine, a drug known to inhibit the endogenous PRL release, has a significant though less marked effect. Studies of lactating (i.e. animals with physiological stimulation of endogenous PRL release) and non-lactating arthritic mice revealed no clear-cut differences, indicating that PRL is of minor importance for the induction of the post-partum flare. Some steroids other than oestradiol, which may be implicated in the exacerbation of arthritis, namely progesterone and hydrocortisone, had no clinical effect. Analyses of agalactosyl IgG levels in mice with CIA, and anti-collagen II antibodies in sera collected at the end of the experiments revealed no significant differences between the oestradiol and the control groups. The successful oestradiol treatment of the mice indicates that the drop in endogenous oestradiol levels prior to delivery ends the oestrogen-mediated protection against arthritis during pregnancy. | |
| 3295108 | Lipopolysaccharide induces recurrence of arthritis in rat joints previously injured by pep | 1987 Jun 1 | Rat ankle joints injected intraarticularly with 5 micrograms of group A streptococcal peptidoglycan-polysaccharide (PG-APS) developed an acute course of arthritis. Recurrence of arthritis was induced in 100% of these joints by intravenous injection of as little as 10 micrograms of Salmonella typhimurium lipopolysaccharide (LPS) 3 wk after intraarticular injection. This reaction was similar in athymic and euthymic rats. Buffalo rats were less susceptible than Lewis or Sprague-Dawley rats. Neisseria gonorrhoeae, Yersinia enterocolitica, and Escherichia coli LPS, and S. typhimurium Re mutant LPS, were also active. Re mutant LPS activity was greatly reduced by mixing with polymyxin B. E. coli lipid A was weakly active. An acute synovitis of much less incidence, severity, and duration was seen in contralateral joints injected initially with saline, and in ankle joints of naive, previously uninjected rats after intravenous LPS injection. The intravenous injection of the muramidase mutanolysin on day 0 or 7 after intraarticular PG-APS injection prevented LPS-induced recurrence of arthritis. These studies suggest that the phlogistic activities of lipid A and peptidoglycan might interact in an inflammatory disease process, and that LPS may play a role in recurrent episodes of rheumatoid arthritis or reactive arthritis. | |
| 1862238 | Dietary therapy for arthritis. | 1991 May | Patients believe that dietary manipulation may help their arthritic symptoms, and because they have--until recently--not felt that their doctors were interested in diet, they have been vulnerable to commercial exploitation. In the past decade, scientific studies have shown that dietary manipulation may help at least a sub-group of rheumatoid patients. Mechanisms of improvement are understood incompletely, but many theories have been proposed. Further, careful studies are needed so that doctors may understand the subject and advise patients appropriately. | |
| 2317111 | Infective endocarditis, rheumatoid factor, and anticardiolipin antibodies. | 1990 Feb | Serum samples from 22 patients with infective endocarditis were analysed for the presence of antibodies to cardiolipin, false positive Venereal Disease Research Laboratory (VDRL) test, and rheumatoid factor in order to determine the prevalence of anticardiolipin antibodies, their level, and to ascertain whether there was any correlation with the presence of rheumatoid factor. Although the latex test was positive in 10/22 (45%) patients, anticardiolipin antibodies, usually of a low level, were raised in only four (18%), and the VDRL test was positive in two patients in whom other antibodies were negative. These results show a clear discordance between these three tests, indicating that B cell production of these antibodies is separate and distinct. As with other infections which result in anticardiolipin antibody production, no thrombotic events were encountered. | |
| 3499815 | Gastroduodenal mucosa and dyspeptic symptoms in arthritic patients during chronic nonstero | 1987 Nov | Gastroduodenal intolerance is one of the major factors limiting the use of aspirin and other nonsteroidal anti-inflammatory drugs (NSAID) in patients with arthritic conditions. We evaluated the endoscopic appearance of the gastroduodenal mucosa in 65 patients (63 men and two women) taking regular daily doses of NSAIDs over a long period for osteoarthritis or rheumatoid arthritis. Eight different drugs (indomethacin, ibuprofen, naproxen, sulindac, piroxicam, aspirin, salsalate, and tolmetin) had been taken continuously for at least 6 wk. Seven patients took two different NSAIDs. No other drug known to damage the mucosa was used. Twenty-one patients (32%) had an endoscopically completely normal stomach and duodenum, and 44 (68%) had evidence of injury (mucosal hemorrhage 44.6%, erosions 53.8%, both mucosal hemorrhage and erosions 34%). Ten patients had ulcers detected (seven gastric, two pyloric channel, one duodenal bulb) for a point prevalence of 15.4%. Ulcers were found in patients taking naproxen, indomethacin, tolmetin, sulindac, and ibuprofen, either alone, or in combination with aspirin. Dyspeptic symptoms were present in 19% of those with completely normal endoscopy and in only 9% of those with abnormal endoscopic findings. Only three of the 10 patients with ulcer had dyspeptic symptoms. There was no significant difference between drugs in tendency to cause gastroduodenal injury. We confirm that fairly severe gastroduodenal injury occurs in asymptomatic patients with rheumatoid and osteoarthritis, and that symptoms do not predict the presence of damage. | |
| 3264338 | The relationship of anticardiolipin antibodies to disease manifestations in pediatric syst | 1988 Sep | To determine the prevalence of anticardiolipin antibodies (aCL) in pediatric systemic lupus erythematosus (SLE) and their possible association with clinical manifestations, aCL were measured in sera of 32 patients with the onset of SLE before age 16. IgM and IgG aCL were determined by ELISA and values compared to those of 12 patients with juvenile rheumatoid arthritis (JRA), 15 age matched asthmatics, and 32 adult controls. aCL were demonstrated in sera of 16 of 32 (50%) children with SLE, 5 of 12 (42%) patients with JRA, 1 of 15 (7%) asthmatics, and in none of the 32 adult controls. Serial samples on 11 patients with SLE showed fluctuations in aCL levels that often corresponded to disease activity; the highest levels occurred in patients during periods of seizure activity and other neurologic events. The antibodies were not crossreactive anti-DNA antibodies as shown by the failure of DNA to inhibit binding to cardiolipin. These data suggest that the prevalence of aCL is similar in pediatric and adult SLE and that aCL levels may vary with disease activity, especially neurologic disease. | |
| 3537128 | CS-A therapy in MRL-lpr/lpr mice: amelioration of immunopathology despite autoantibody pro | 1987 Jan 1 | MRL-lpr/lpr mice spontaneously develop massive T cell lymphadenopathy, autoantibodies, and immune-mediated pathology. These mice are thought to be models of various human autoimmune diseases, including systemic lupus, Sjogren's syndrome, and rheumatoid arthritis. We have used cyclosporin A (CS-A) treatment as a tool by which the mechanisms of immune-mediated pathology might be dissected. CS-A was used because of its known preferential inhibition of T cell function and the marked expansion in MRL-lpr/lpr mice of an unusual L3T4-, Lyt-2-, 6B2+ T cell population. CS-A prevented lymphadenopathy and expansion of L3T4-, Lyt-2-, 6B2+ T cells in the peripheral lymph nodes, and also in the thymus. The increased expression of the c-myb and T cell receptor beta-chain genes associated with these unusual cells was also corrected. The finding of increased numbers of L3T4-, Lyt-2-, 6B2+ thymocytes in untreated mice suggests abnormal intrathymic differentiation in lpr/lpr mice, a defect that was corrected by CS-A. Treated mice had a marked decrease in arthritis and glomerulonephritis and significantly prolonged survival. These beneficial effects of CS-A occurred despite a lack of reduction in antibodies reactive with DNA, circulating immune complexes, rheumatoid factor titers, or immunoglobulin concentrations. These results demonstrate that the B cell hyperactivity of MRL-lpr/lpr mice can proceed without the T cell proliferative disease. | |
| 15493255 | Herpes simplex type 1-induced Fc receptor binds to the Cgamma2-Cgamma3 interface region of | 1989 Jan | The binding site of immunoglobulin G (IgG) to herpes simplex virus (HSV) type 1-induced Fc receptor was investigated using human IgG Fc intermediate (Fc(i)) fragments, fragment D of staphylococcal protein A (SPA) and chemically modified human IgG. Human IgG Fc(i) fragment composed of one Cgamma2 and two Cgamma3 domains, bound strongly to HSV-1-infected cells. Fragment D, a monovalent subunit of SPA, inhibited the binding of radiolabelled human IgG Fc fragments to the HSV Fc receptor. Reductively methylated human IgG reacted equally well to HSV-infected cells, as did chemically unmodified IgG in contrast to N-acetylimidazole-modified and diethylpyrocarbonate-modifed human IgG, which were unreactive. These results suggest a similar binding site on human IgG for SPA and the HSV-1 Fc receptor with involvement of the amino acid residues Tyr and His but not Lys. The similarities of binding sites on the IgG molecule for the HSV-1 Fc receptor and rheumatoid factors (RF) may be important for understanding the mechanism of RF production in rheumatoid arthritis or other disease states. | |
| 2026813 | Fat intensity within the hypointense zone on MR imaging of avascular necrosis of the femor | 1991 May | In some patients with avascular necrosis of the femoral head (ANFH), an area of signal intensity similar to that of subcutaneous fat tissue is found within or proximal to the hypointense zone of spin echo MR images. We refer to these MR findings as the "fat intensity" sign. This fat intensity sign was positive in 62 (47%) of 133 MR examinations of femoral heads with radiographically proven ANFH; this sign was negative in all hips with other diseases including degenerative joint disease, transient osteoporosis, rapidly destructive coxoarthrosis, and rheumatoid arthritis. | |
| 10171108 | The clinical use of aluminium oxide bioceramic implants for mandibular condyle replacement | 1991 | In a 6-year period, six bilateral and five unilateral compact aluminium oxide ceramic condyle fixed with titanium screws were implanted. During the years following the operation, it was not necessary to remove any ceramic condyle. In only one case (rheumatic polyarthritis) was it necessary to reoperate on the patient because of bilateral reankylosis. Ceramics can be recommended in a wide field application because of the simplicity, uniformity, durability, and good tissue-enduring ability. The danger of postoperative ankylosis occurs only in patients suffering from rheumatoid arthritis. | |
| 2190435 | [The value of magnetic resonance tomography (MRT) in inflammatory rheumatic diseases]. | 1990 Mar | As compared to other imaging modalities, magnetic resonance imaging (MRI) is characterized by superior soft tissue contrast, multiplanar display, and lack of ionizing radiation and other hazards. Contrast media, including paramagnetic substances, (e.g., gadolinium-DTPA) are useful for further improvement of diagnostic capabilities of MRI. In this paper the results of MRI in rheumatoid arthritis and related disorders, as well as the potentials of its clinical use are discussed. | |
| 2803210 | [Spontaneous and simultaneous rupture of the right patellar ligament and avulsion fracture | 1989 Sep | Bilateral simultaneous and spontaneous patellar tendon ruptures are exceedingly rare. The diagnosis is established by clinical examination. Early diagnosis and surgical repair is essential to provide a satisfactory functional result. A case of patella tendon rupture on the right side and a fracture of the tuberositas tibiae on the other one after minor trauma in an 31-year-old woman with osteomalacia is presented. In case of spontaneous and bilateral tendon ruptures other diseases, especially generalized bone diseases, systemic lupus erythematodes, metabolic diseases and rheumatoid arthritis should be excluded. | |
| 2789313 | [A new immunogenetic marker of rheumatism]. | 1989 Jun | Use of monoclonal D8/17 antiserum was studied for identification of B-cell antigen in 44 rheumatic fever patients. The control group comprised healthy subjects (30) and patients suffering from rheumatoid arthritis (30), ischemic heart disease (IO); chronic tonsillitis (12) and different neoplasma of the brain (10). The preliminary genetic analysis of these patients has shown that monoclonal antiserum D8/17 can identify B-cell marker in 88-100 per cent of rheumatic fever cases. | |
| 2645322 | Red lunulae revisited: a clinical and histopathologic examination. | 1989 Mar | Red lunulae are associated with rheumatoid arthritis, systemic lupus erythematosus, alopecia areata, cardiac failure, hepatic cirrhosis, lymphogranuloma venereum, psoriasis, carbon monoxide poisoning, twenty-nail dystrophy, and reticulosarcoma. We examined four patients with red lunulae. Three had chronic obstructive pulmonary disease. Two of these three were alcohol abusers and were without any of the conditions previously associated with red lunulae. Two of the four also had palmar erythema. Histopathologic examination of the red lunula in one of the four cases did not show signs of neovascularization. We report our findings in these patients, which suggest that red lunulae result from increased arteriolar blood flow, a vasodilatory capacitance phenomenon, or changes in the optical properties of the overlying nail so that normal blood vessels become more apparent. | |
| 3146940 | Acquired factor VIIIC deficiency due to circulating factor VIIIC inhibitors. | 1988 Oct | The management of patients with Factor VIIIC inhibitor is frequently a therapeutic challenge. Treatment is often individualized. We describe 3 patients, nonhaemophilic adults, with bleeding diatheses caused by a circulating inhibitor to Factor VIIIC. One patient had long standing rheumatoid arthritis. The other two did not have any apparent underlying disease, although one of them had an antecedent antecedent phenylbutazone injection for arthralgias. Prednisolone was prescribed for two patients which resulted in rapid clinical improvement and the eventual normalization of Factor VIIIC activity. The role and rationale of immunosuppressive therapy in Factor VIIIC inhibitor is reviewed. |