Search for: rheumatoid arthritis methotrexate autoimmune disease biomarker gene expression GWAS HLA genes non-HLA genes
| ID | PMID | Title | PublicationDate | abstract |
|---|---|---|---|---|
| 1190701 | Osmic acid treatment for rheumatoid synovitis. | 1975 Jun | 47 patients with rheumatoid arthritis and synovitis were treated with intra-articular injection of hydrocortisone and 52 patients with both hydrocortisone acetate and osmic acid. In another series of 24 patients with synovitis in both knees were injected with osmic acid to the more seriously affected knee and with methylprednisoloneacetate to the other knee. Osmic acid gave better improvement than corticosteroid alone, although the difference between th groups of the latter series was not statistically significant. On the basis of previous investigations and this study osmic acid is one alternative to radiation or surgical synovectomy in rheumatoid synovitis. The therapeutic result is not always satisfactory but facility of treatment and minor side effects are the advantages of osmic acid therapy. | |
| 6351235 | [Pharmacology and mechanism of action of D-penicillamine in rheumatoid polyarthritis]. | 1983 May | The authors discuss current pharmacological knowledge of D-Penicillamine (DP) in man and its possible mechanism in the treatment of rheumatoid polyarthritis. Dosage by liquid phase chromatography enables study of intestinal absorption, reduced by meals, the distribution made according to a 2 compartment model, urinary and faecal excretion. Metabolism occurs mainly by oxidation of free D-Penicillamine. 20 percent of the plasmatic DP, not bound to proteins, appears in the form of disulphides and free DP. The only known metabolite is S-methyl DP, produced in small amounts. The DP mechanism remains hypothetical. The authors discuss its effects on the metabolism of copper and zinc, dismutatic super-oxide activity, the radical thiol level, collagen metabolism, cartilaginous destruction, prostaglandin synthesis, polynuclear chemotaxis and the immuno-system. | |
| 6649934 | The evaluation of bone changes in patients with rheumatoid arthritis. | 1983 Sep | Some biochemical and radiological parameters of bone loss associated with rheumatoid arthritis were compared with changes observed in patients suffering from osteoarthrosis. In patients with rheumatoid arthritis increased elimination of hydroxyproline correlated with hypercalciuria and elevated total serum alkaline phosphatase were found. It is suggested that in cases where special methods of assessment of bone changes are not available these biochemical values could serve as satisfactory screening method for detection of bone loss. | |
| 314964 | Characterization and measurement of anti-IgG antibodies in human sera by radioimmunoassay | 1979 | A sensitive direct binding radioimmunoassay (RIA) was developed which detected low avidity anti-IgG antibodies in sera negative in the latex fixation test (LFT). IgG class antibodies could be detected and were commonly found along with IgM class antibodies. Additionally, the RIA was more reproducible than the LFT, was easily adapted to measure relative avidities of anti-IgG antibodies, and had other technical advantages over the LFT. | |
| 6380722 | Salsalate for arthritis: a clinical evaluation. | 1984 | In an open-label trial, 182 patients with common forms of arthritis were treated with 3 gm of salsalate daily (two 750-mg tablets twice daily) for 15 days. Before entering the study, these patients had received a wide variety of antiarthritic medications. Five indices of disease severity (pain, stiffness, joint swelling, limitation of motion, and disability) were evaluated before and after salsalate therapy, the incidence of side effects was tabulated before and after treatment, and patient compliance with the salsalate regimen was assessed. A reduction in disease symptoms was noted in 79% of the treated patients. Median improvement, measured on a summary index, was 47%. The incidence of side effects experienced with previous therapy was reduced by 65% during salsalate administration. Patient compliance with the regimen was greater than 95%. The findings show salsalate to be effective and safe in ameliorating the symptoms of arthritic disease. The convenient twice-daily dosage regimen makes this drug particularly suitable for chronic use. | |
| 6797663 | Does the order of second-line treatment in rheumatoid arthritis matter? | 1982 Jan 9 | In a prospective study 88 patients, with rheumatoid arthritis who had stopped taking gold, penicillamine, or levamisole were randomly allocated to one of the alternative drugs and followed up for a minimum of one year. Concurrent studies of the effects of gold, penicillamine, and levamisole prescribed in 123 patients as the first second-line drug were used for comparison. No difference in toxicity or efficacy between primary and secondary use of gold or penicillamine was identified. Variation in the toxicity of levamisole could in part be accounted for by changes in the dose regimen over the four years of study. The length of the treatment-free interval between drugs did not influence subsequent development of toxicity. These results suggest that an adverse reaction to one of the three second-line drugs studied should not prejudice the selection of another. | |
| 6472875 | The use of the McGill Pain Questionnaire in assessing arthritis pain. | 1984 Jul | Responses to the McGill Pain Questionnaire (MPQ) were described in two samples of arthritis patients, an inpatient group (n = 94) and an outpatient group (n = 94). Subjects in both samples used a similar set of sensory words to describe their arthritis pain. The inpatient sample, however, used affective words of higher intensity than the outpatient sample. Because the two samples came from a common population, they were combined and exploratory factor analyses using principal component analysis with first oblique and then orthogonal rotations were performed. The analysis yielded 6 factors that accounted for 58.3% of the variance in the sample. Clear sensory factors, an affective factor and an evaluative factor were identified. The study provides preliminary evidence that a substantial affective dimension underlies the MPQ responses of arthritis patients and confirms the parsimony of a 3-factor solution for the questionnaire. | |
| 6100920 | Intercellular messengers in joint tissues in rheumatoid arthritis. How disturbed control m | 1981 | Although the cause of rheumatoid arthritis is uncertain, the mechanisms by which destruction of joint tissues may occur have been studied extensively. The inflammatory responses in rheumatoid arthritis are probably mediated by a variety of different agents which include prostaglandins, leukotrienes, kinins and other peptide mediators, complement components, and immune complexes. The ultimate destruction of proteoglycans and collagen within cartilage similarly depend upon the release of the appropriate degradative enzymes. At one time these were thought to be predominantly lysosomal acid proteinases but emphasis has recently shifted to neutral metallo-proteinases which include specific enzymes capable of degrading collagen or proteoglycans at neutral pH. Under normal conditions these proteinases are in latent form due in part to the presence of a tissue inhibitor of metallo-proteinases (TIMP). During studies of human joint tissues in culture, it has become apparent that products of one cell type may influence the behaviour of other cells. Thus, monocytes and macrophages may produce mediators, such as interleukins, one of which has been called mononuclear cell factor (MCF), which when added to cultures of human articular chondrocytes or synovial cells, markedly enhances production of prostaglandins and metallo-proteinases while depressing the amount of TIMP. Cultured human synovial tissue produces factors with similar properties, which may in turn be related to mediators such as catabolin, which can be produced by synovium and other connective tissues and which stimulate chondrocytes to degrade their own matrix. The production of these mediators may not only be relevant to rheumatoid arthritis but also to other diseases. Thus, MCF is capable of stimulating prostaglandin production by gingival cells and cells derived from human bone. Moreover MCF is itself capable of inducing bone resorption. Since both normal and diseased tissues are capable of producing and responding to these mediators, these potential degradative interactions must be kept in check in vivo. Glucocorticosteroids may play a role in the natural suppression of these mechanisms, since in vitro they are capable of inhibiting the production of factors as well as their effects on target tissues. Since these factors probably have anabolic activity as well, they may be involved in connective tissue repair after injury. Such intercellular mediators may play important roles in the control of connective tissue turnover, not only in disease states but also in the normal processes of growth and differentiation. | |
| 819382 | Effect of degradation of the arabinogalactan portionof a water-soluble component from M. t | 1976 | In order to explore a possible role of the arabinogalactin (AG) portion of the water-soluble arthritogenic component (WAC) from M. tuberculosis wax D for induction of adjuvant arthritis (AA) in the rat, this component was digested with an AG-degrading enzyme. The enzyme-digested WAC was able to produce AA. The severity of AA was almost comparable to that of the nondigested WAC. This finding suggests that the AG portion of the WAC does not seem to be essential for AA induction and indirectly points the importance of the peptidoglycan portion. | |
| 114644 | Trace elements and acute phase reactants in gold treated rheumatoid arthritis patients. | 1979 | Abnormal concentrations of trace elements, sulfhydryl groups, amino-acids and serum proteins were found in patients with rheumatoid arthritis similar to other chronic inflammatory conditions. These changes have been called the phase reaction. In this study, a systematic profile of the phase reactants was established in rheumatoid arthritis at the onset and during its modulation by chrysotherapy (gold sodium thiomalate 25 mg i.m. weekly). It was shown that this treatment, if successful, is capable of reverting to normal measures of the phase reaction. It was also found that the pattern of the profile varied in individuhe eventual beneficial or toxic effects. In these preliminary studies, no parameters or group of parameters of the phase reaction were predictive of the therapeutic outcome. Extended observations (over 6 months) and more individual profiles are being analyzed to gain insight into these features of inflammation and their modulation by chrysotherapy. | |
| 7013467 | Fluorescent enzyme immunoassay for antibody to single- or double-stranded DNA. | 1981 Apr | Fluorescent enzyme immunoassays have been developed for antibody to either single-stranded (ssDNA) or double-stranded (dsDNA) DNA. Preliminary testing of several clinically distinct groups of persons is consistent with the suggestion that the former assay (anti-ssDNA antibody) has sufficient sensitivity and specificity to be used as a generalized test for the detection of possible systemic lupus erythematosus in a heterogeneous clinical population. Further evaluation may ultimately establish its utility in the diagnosis of other related disorders. The sensitivity and specificity of the anti-dsDNA antibody fluorescent enzyme immunoassay are compatible with its use as a confirmatory test in the laboratory diagnosis of systemic lupus erythematosus. Qualitative comparisons between both assays and the more classic laboratory procedures involved in the diagnosis and treatment of systemic lupus erythematosus were quite favorable. The enzyme immunoassay method appears to be acceptably reproducible, and rheumatoid factor has neither a suppressive nor an enhancing effect on test values. | |
| 2416060 | Perturbation of protease inhibitors and substrates in inflammatory arthritis. | 1985 Oct | Defective systemic fibrinolysis and articular persistence of fibrinlike material are well recognized in RA. Perturbation of the major plasma protease inhibitors, A1AT, A2MG, and AT III, was explored in RA, psoriatic arthritis, and Reiter's syndrome. Experimental evidence is presented and assessed with respect to the potential role of serine esterases and their inhibitors in the pathophysiology of inflammatory arthritis. | |
| 3155932 | Lymphocytes bearing Fc gamma receptors in rheumatoid arthritis. II. Phenotypic characteris | 1985 Jan | We have previously reported an increased proportion of Facb-rosette forming cells in the peripheral blood of patients with rheumatoid arthritis in comparison with healthy controls. The present study investigates the surface phenotype of these cells by means of monoclonal antibodies and a variety of rosetting and lymphocyte fractionation techniques. Facb-R+ cells were found to lack surface markers characteristic of T and B lymphocytes. Studies with monoclonal reagents showed a positive reaction with OKIa1, OKM1, and another monocyte-specific antibody. Fac-R+ cells were recognised by anti-HLA-DR reagents but did not bind the monoclonal antibody 17.15 that recognises a determinant on HLA-DR antigens expressed by lymphocytes but not monocytes. These results show that Facb-R+ cells share certain surface characteristics with monocytes, though they are not phagocytic. These observations are consistent with an accessory role for Facb-R+ cells in the immune response. | |
| 6983710 | Interleukin 1 activity in the synovial fluid of patients with rheumatoid arthritis. | 1982 | The synovial fluids (SF) of patients with rheumatoid arthritis (RA) were investigated for their effects on thymocytes of C3H/HeJ mice. Of the 20 SF tested, 17 (85%) showed an augmentation of the phytohaemagglutinin (PHA) induced thymocyte stimulation. Out of 16 SF of patients with osteoarthrosis, such an activity was detected in only one (6.25%). Further characterisation of the amplification factor revealed that (1) the SF of RA patients augmented both the PHA and the Concanavalin A response of the thymocytes (2) in the absence of mitogens, SF-treated thymocytes showed an increased uptake of 3H-thymidine, (3) the SF did not propagate the growth of an interleukin 2 dependent ovalbumin specific T cell clone, but (4) the SF were found to be required for optimal interleukin 2 release by spleen cells stimulated with suboptimal doses of lectin. Based on these biological effects the factor in the SF of RA patients is suggested to represent an interleukin 1 (IL-1). IL-1 produced in cultures by activated macrophages has been shown to stimulate T and B cell functions and to induce the production of collagenase and prostaglandins by cultured synovial cells. Both properties of IL-1 could be relevant in the pathogenesis of RA. | |
| 6266206 | Free light chains of immunoglobulins in serum from patients with rheumatoid arthritis, sar | 1981 | Free light chains of immunoglobulins were measured in serum from 181 patients with rheumatoid arthritis (RA), sarcoidosis, pulmonary tuberculosis, pulmonary cancer and chronic bronchitis, i.e. patients with long-term stimulation of the immune system. Increased concentrations of light chains were found in patients with active sarcoidosis, and the light chain level appeared to be a marker of disease activity in sarcoidosis. The mean (+/- S.D.) concentration of kappa plus lambda chains in active sarcoidosis of more than two years' duration was 38.3 +/- 13.7 mg/l, that is twice the concentration of 19.4 +/- 5.5 mg/l found in normals. Some patients with seropositive RA also had increased serum values. The light chain concentrations in seropositive RA were correlated to the severity of the disease measured by clinical staging and laboratory tests. A modest increase in light chains was observed in one patient with tuberculosis, and in two patients each with chronic bronchitis and pulmonary cancer. | |
| 7361026 | Choline magnesium trisalicylate versus ibuprofen in rheumatoid arthritis. | 1980 Feb | A double-blind study compared choline magnesium trisalicylate (Trilisate tablets, Purdue Frederick) (CMT) and ibuprofen (IPF) in the treatment of rheumatoid arthritis. The seven-week trial in 134 ambulatory patients, of whom 68 received CMT and 66 received IPF, was conducted as a multicentre study. Both CMT and IPF were highly effective in reducing significantly all symptoms that had worsened following the discontinuance of previous therapy. The anti-inflammatory effect of CMT produced a significantly (P less than 0.05) greater reduction in the number of swollen joints, compared to IPF, in patients completing all required visits. Further clinical study will be required before the full clinical significance of this observation emerges. Incidence of adverse effects for each drug did not differ significantly. | |
| 74138 | [Immune complexes and their pathogenetic significance]. | 1977 Oct 15 | The specific binding of antigens by antibodies leads to the development of antigen-antibody-complexes. Apart from the connected with this and desirable immunological protection immune complexes, however, may also have an pathogenic effect on certain conditions (e. g. transmission of the capacity of phagocytosis), depositing themselves in the vascular regions concerned, activating complement and after binding to cell membranes causing the release of unspecific mediators. Finally these lead through increased vascular permeability, local ischaemia and hyperaemia, respectively, and the release of proteolytic enzymes to a lesion of the tissues. In a series of in most cases chronic inflammatory diseases depositions of immune complexes may be proved in the tissues concerned. However, it is difficult to establish exactly in the individual case, whether they considerably participated in the development of the clinical picture. By analogies to experimentally produced immune complex diseases at least some entities of diseases (e. g. lupus erythematodes disseminatus) or defined local alterations of the tissues (e. g. glomerulonephritis of immune complex type) may be defined pathogenetically. | |
| 927397 | Design of total hip prosthesis: the femoral stem. | 1977 Sep 29 | This report is a summary of the research carried out in an effort to improve the reliability of total hip replacement procedures. The current state of knowledge of hip mechanics was examined and found adequate in its description of the normal hip, but totally lacking in any but qualitative terms in its description of the diseased hip, or the load transfer between prosthesis and bone in reconstructed hips. The mechanics of the hip joint and femur indicate that the positioning of the femoral head is crucial in achieving a correct balance between muscle force and joint load. Consequently, it is recommended that a great deal more attention be devoted to the positioning of the prosthesis at hip surgery. Experimental and theoretical studies were directed to one aspect of total hip replacement - the design of the femoral stem. Results indicate that all current designs should be adequate if set in acrylic, and provided subsequent bone resorption is small. Further results indicated satisfactory load transfer from a long thick prosthesis stem, fitted without acrylic cement. | |
| 3886567 | Linoleic acid treatment in inflammatory arthritis. | 1985 Feb | Ten patients with chronic rheumatic diseases were treated either with sunflower oil (linoleic acid 66%; n = 6) or with olive oil (linoleic acid 4%; n = 4) for 21 days. Sunflower oil but not olive oil increased the serum concentrations of linoleic acid in all fractions studied. In cholesteryl esters, both arachidonic acid and dihomo-gamma-linolenic acid concentrations were slightly diminished. The changes in all these fatty acids were already seen on the first days of treatment. Plasma arachidonic acid metabolites showed no uniform changes during the treatment. Excretions of the main metabolite of prostacyclin (6-keto-PGF1 alpha) and thromboxane B2 into urine were slightly increased in most patients on sunflower oil. No marked improvement was seen in the clinical or conventional laboratory parameters in either treatment. | |
| 6896920 | How are women sicker than men? An overview of psychosomatic problems in women. | 1982 | An overview is presented of psychosomatic problems in women - the epidemiology, physiology and psychology. Surveys of sickness rates in women and psychological studies are used as a basis of speculation about higher female morbidity rates. Theories of psychosomatic illness, the somatic concomitants of hysteria and alexithymia are reviewed as they pertain to observations of gender differences in disease phenomena. A clinical case is presented of thyrotoxicosis, one of the illnesses predominantly found in women. |