Search for: rheumatoid arthritis    methotrexate    autoimmune disease    biomarker    gene expression    GWAS    HLA genes    non-HLA genes   

ID PMID Title PublicationDate abstract
7362475 [Morphological changes in the nervous system in rheumatoid arthritis]. 1980 The central and peripheral nervous systems were subjected to morphologic study in 16 patients suffering from rheumatoid arthritis. The following pathological stages characteristic for collagenous diseases were revealed in the connective tissue and vascular walls: mucoid swelling, fibrinoid changes, sclerosis and amyloidosis. The intensity of acute degenerative changes in the connective tissue of the nervous system was largely dependent on the clinical and immunologic activity of the disease.
294903 Difficulties in the use of D-penicillamine in the treatment of rheumatoid arthritis. 1979 Oct The difficulties encountered in administering D-penicillamine to 40 patients with rheumatoid arthritis (RA) over a six to 24 month period are recorded. Side-effects were frequent. Proteinuria occurred in 13 patients (33%) mainly in the fourth to the sixth month. Renal biopsies were performed in six patients and all showed light microscopy abnormalities. Electron microscopy performed in five patients revealed subepithelial deposits in all and in addition some had mesangial and subendothelial deposits. Seven patients (17.5%) developed eight episodes of thrombocytopaenia which was quickly reversed on cessation of treatment or reduction in dosage. On the positive side, there was significant improvement in most parameters of disease activity at six, 12 and 18 months compared to the pretreatment levels, but the results at two years were less impressive. Reduction in steroid dosage was considerable and was greater than half the mean pretreatment dose after two years but the absence of a control group makes the full significance of these uncertain. Patients on high and low dosage regimens were compared over a 12 month period of treatment. Although the differences were not statistically significant, withdrawals and side-effects were less frequent in the low dose group.
154829 Low responsiveness of synovial and peripheral blood lymphocytes stimulated by either PHA-P 1978 Dec Lymphocytes were highly purified from synovial fluid and peripheral blood of 10 rheumatoid arthritis patients and assessed for responsiveness to PHA-P and Con-A. In all cases, both synovial and blood lymphocytes showed a marked reduction in response to these mitogens compared with normal blood lymphocytes. The factors responsible for this low T cell responsiveness are discussed.
804599 [Shoulder pain and shoulder stiffness: causes, differential diagnosis and therapy:]. 1975 Mar 7 Like lumbago, pains and stiffness of the shoulder are a crux medicorum. Here, however, unlike lumbago, promising treatment is possible if a correct diagnosis made. The cardial symptoms are classified for the diagnosis; conservative and surgical treatment of the individual disease pictures are described.
6301567 Epstein-Barr virus and rheumatoid arthritis: are rheumatoid arthritis associated nuclear a 1982 In order to investigate the relationship between antibodies to RANA and other Epstein-Barr virus induced antigens, we have tested 50 sera from subjects without rheumatoid arthritis and with various EBV serology patterns for aRANA, aEA, aVCA, aEBNA. Patients were either suffering from Burkitt's lymphoma, infectious mononucleosis, nasopharyngeal carcinoma, Hodgkin's disease or immunodeficiencies, or were healthy controls. RANA was detected by indirect immunofluorescence on G1 synchronized Raji cells. The correlation was very strong between aEBNA and aRANA (r = 0.86) without any correlation between aRANA and aVCA. These data not only strongly support the opinion that aRANA is frequently found in non-rheumatoid diseases but cast doubt on the distinction between RANA and EBNA.
7083638 Rapid single-step method for purification of polymorphonuclear leucocytes from blood of pa 1982 Mar Previous studies have shown that blood samples from healthy subjects and patients with a variety of different diseases separate into distinct mononuclear leucocyte (MNL) and polymorphonuclear leucocyte (PMNL) bands when centrifuged on a Ficoll-Hypaque medium of density 1.114 g/ml. Results from the present study showed that blood samples from patients with rheumatoid arthritis (RA) failed to separate into discrete cellular fractions under the same conditions. In particular, the PMNL were not recoverable because the erythrocytes only partially sedimented. However, following modification of the separation medium involving (a) reduction in the final Ficoll concentration from 8% to 7%, and (b) an alteration in the ratio of meglumine Hypaque:sodium Hypaque from 5.7:2.8 to 2.0:7.5, a clear band of PMNL of high purity could be obtained with blood samples from patients with RA. The modification of this previously described, simple, brief, one-step, density gradient centrifugation method achieved separation of peripheral blood PMNL required for studies of leucocyte function in patients with RA.
6971936 Incidence of atopy in rheumatic disease. 1981 Mar The incidence of hay fever, positive skin tests to grass pollen and specific IgG and IgE antibodies to a pollen allergen was found to be the same in a group of 40 patients with juvenile chronic arthritis as that expected in a normal population. The geometric mean total serum IgE of this group was also normal. In sera from patients with adult rheumatoid arthritis the incidence of IgG an IgE antibodies to pollen appeared to be low and the geometric mean total IgE was also low.
7441653 Disturbance of gait due to rheumatoid disease. 1980 Sep An alteration in the orientation of ankle and subtalar axes appears to cause 2 primary abnormalities in patients with rheumatoid disease involving the subtalar joint: a lack of plantar flexion at heel strike and a late heel rise. Movement at the thigh, the knee and the ankle is altered to compensate for these changes. It has been shown that the kinematics of gait of such rheumatoid patients does differ substantially from the normal pattern. A precise descriptive language of these changes has been employed in this study.
5017445 Haem biosynthesis studied in patients with rheumatoid arthritis. 1972 Feb In a study of the urinary excretion of haem precursors in patients with rheumatoid arthritis, iron-deficiency anaemia, and in healthy controls, certain differences were found. In iron-deficiency anaemia the excretion of both porphobilinogen and delta-aminolevulinic acid was increased, whereas in patients with rheumatoid arthritis only the porphobilinogen excretion was increased.A further study on the erythrocyte activity of delta-aminolevulinic acid dehydrase showed a higher activity in the erythrocytes from patients with rheumatoid arthritis compared with healthy controls.
3921034 Human rheumatoid arthritic cartilage and its neutral proteoglycan-degrading proteases. The 1985 Apr Measurements were made of the neutral proteoglycan-digesting protease activity in the cartilage matrix breakdown observed in the rheumatoid arthritic process. Normal knee (tibial plateau) cartilage specimens were obtained from 7 fresh cadavers and 29 cartilage specimens were obtained from 23 patients diagnosed as having rheumatoid arthritis (RA). The total neutral metalloproteoglycan-degrading enzyme (NMPE) activity in RA cartilages exhibited roughly an eightfold elevation over that of control subjects. The active form of the NMPE for diseased cartilage was higher than that observed for normal cartilage, but was not statistically different. A very low level of activity was detected for serine proteases and no variation was observed between normal and diseased cartilages. Data obtained from RA cartilages were also analyzed with respect to the relationship between enzyme activities and the patients' medications. Four groups of patients were then selected according to their drug treatments: S + G patients received steroid and gold therapy; S patients received steroids only; NS + NG patients did not receive steroid or gold therapy; G patients received gold therapy alone. The total NMPE activity for each of these groups remained at a very high level. The active enzyme activity measured in S + G and S patients was decreased to a level not different from that of normal controls. Specimens from NS + NG patients presented a significantly higher level of the active form of the enzyme (P less than 0.05) when compared with either normal controls, S + G, or S patients. No significant difference was noted in the level of serine protease activity between the RA cartilage and normal cartilage.(ABSTRACT TRUNCATED AT 250 WORDS)
743828 Rheumatoid synovial cyst of the hip joint: a case report. 1978 Nov Rheumatoid synovial cyst of the hip joint in a 52-year-old man including iliopsoas bursal extension was demonstrated by arthrography and excision biopsy. Surgical excision of the cyst and femoral head replacement were carried out. There was no recurrence for 15 months postoperatively. The condition should be suspected in patients with degenerative changes in the hip joint and adjacent unexplained palpable mass.
6334907 DR4 related antisera pattern differences in insulin dependent diabetes mellitus and rheuma 1984 Oct Three allosera patterns of reactivity are described which appear to define subtypes of DR4 and segregate in families with different DR4 bearing haplotypes. There appears to be a preponderance of one particular subtype (termed DR4.3) occurring in type I insulin dependent diabetes mellitus, while in rheumatoid arthritis the distribution of subtypes within DR4 individuals is similar to that seen in controls. Although we refer to DR4 subtypes the proof that these sera are detecting a determinant on the DR molecule and not a product of another locus, an allele of which is linkage disequilibrium with DR4, awaits immunochemical confirmation.
1056448 Screening in a dental clinic for adult rheumatoid arthritis involving the temporomandibula 1975 Apr The radiological features seen on the temporomandibular joint radiographs of ninety-nine cases of adult rheumatoid arthritis were used to distinguish this group from a group of eighty-three control subjects using the method of logistic discrimination. A readily calculable diagnostic score, whose value was verified by a second study involving thirty-two patients, sixteen of whom suffered from adult rheumatoid arthritis, was estimated. This second study was further used to illustrate how this scoring system would be modified to take account of extra information. Although a long term evaluation of the method is envisaged its clinical application is indicated and its practical value demonstrated.
6602364 [Study of a sub-population of T-lymphocytes with the HLA-DR molecule in rheumatoid polyart 1983 Feb The sub-population of T-lymphocytes which express the DR antigen was studied in 48 patients with rheumatoid arthritis and in 42 controls. The sub-population of T-lymphocytes which express DR was found to be larger in the patients with rheumatoid arthritis. This increase is even more marked in cases of rheumatoid arthritis with high erythrocyte sedimentation rates and with a high level of immune complexes.
6608183 [Recently discovered mechanisms of action of non-steroidal antirheumatic agents: possible, 1983 Dec 23 Non-steroidal antirheumatic agents are assumed to exert their therapeutic effects by inhibiting biosynthesis of prostaglandins at the level of cyclo-oxygenase. This effect leads to a reduction of inflammatory symptoms caused or potentiated by prostaglandins. Recently, some new further effects (partly also induced by inhibition of prostaglandin synthesis) of non-steroidal antirheumatic drugs have been discovered. These effects influence functions and interactions of white blood cells involved in pro-inflammatory and immunological processes, and appear to be causal rather than symptomatic. Furthermore, there are differences in the mode of action of some antirheumatic agents, in particular with regard to inhibition of generation of inflammatory superoxide anions.
1096276 A double-blind cross-over trial of Prenazone (DA 2370) and phenylbutazone in rheumatoid ar 1975 May A short-term double-bind cross-over trial of prenazone 600 mg daily and phenylbutazone 300 mg daily was carried out in twenty out-patients with rheumatoid arthritis. Ten patients preferred prenazone, and eight preferred phenylbutazone. No significant difference in analgesic and antiinflammatory potency was demonstrated under the conditions of the trial, and no serious adverse effects, either clinical or laboratory, were encountered. These findings support other claims that prenazone may be a useful alternative in the treatment of rheumatoid arthritis.
6331966 A controlled study of the exocrine pancreatic function in Sjögren's syndrome and rheumato 1983 Jun The exocrine pancreatic function has been estimated using the N-benzoyl-L-Tyrosyl para-amino-benzoic acid test (NBT PABA test) and by measuring the trypsinemia by radio-immunoassay (RIA trypsinemia) in nonselected cases of Sjögren's syndrome (SS) and seropositive rheumatoid arthritis (RA) in comparison with normal controls. The NBT PABA test was pathological in 37,5% of SS and 35% of RA patients but in none of the controls. The RIA trypsinemia was found to be high in 6,2% of SS and 45% of RA patients. These findings suggest that exocrine pancreatic function is impaired in some SS and RA cases. However, this exocrine pancreatic defect was clinically silent in all patients.
6228587 Reduced in vitro immune responses of purified human Leu-3 (helper/induced phenotype) cells 1984 Feb Patients treated with total lymphoid irradiation (TLI) for intractable rheumatoid arthritis showed marked decreases in the in vitro proliferative responses of peripheral blood mononuclear cells (PBM) to antigens and mitogens. To determine whether an intrinsic deficit in helper/inducer cell proliferation contributed to decreased responses, cells of the helper/inducer phenotype were purified from the PBM of treated patients by using monoclonal anti-Leu-3 antibody and a modified panning procedure. The purified Leu-3 cells obtained after TLI showed a marked reduction in [3H]thymidine incorporation in response to allogeneic lymphocytes, PHA, Con A, and several protein antigens, as compared with that of cells from the same patients obtained before TLI. In addition, the quantity of Leu-3 surface antigen on the panned cells was reduced after TLI. The results suggest that TLI induces prolonged qualitative as well as quantitative changes in circulating Leu-3 T cells. These changes may contribute to the clinical effects of TLI.
312046 Rheumatoid meningitis: a localized immune process. 1979 May Rheumatoid pachymeningitis is a rare complication of rheumatoid arthritis. This disease was confined to the dura and pia-arachnoid of the lumbar cord in our patient. Her neurologic deficits responded to surgical decompression and corticosteroid therapy. Radiologic evidence and the differences in cell count, protein, and glucose content between lumbar and cisternal cerebrospinal fluid indicate that rheumatoid pachymeningitis can be localized to a discrete region of the central nervous system. Elevated immunoglobulins, IgM and IgG rheumatoid factors, low molecular weight IgM, and immune complexes were found in the cerebrospinal fluid and implicate an immune reaction in the pathogenesis of this disease, which is probably similar to inflammatory processes involving other organs in rheumatoid arthritis.
6659891 The EOG in rheumatoid arthritis. 1983 Oct In untreated rheumatoid arthritis 20% of the patients has a EOG Lp/Dt ratio lower than the lower 5% limit calculated for normal patients. The EOG is more often disturbed in a long-standing chloroquin-induced retinopathy than in the acute phase of intoxication, the reason being progression from a maculopathy to a tapeto-retinal degeneration. The subnormal EOG in rheumatoid arthritis might be due to an auto-immune process against rhodopsin and uveal pigment. Withdrawal of synthetical antimalarial agents in cases suspected of an early drug-induced retinopathy based on EOG subnormality may enhance the underlying rheumatoid process thus causing a further decrease of the EOG. The EOG therefore is not a method of choice in detecting an early chloroquin-induced retinopathy.