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PMID	Title	PublicationDate	abstract
539846	Changes in load bearing in the rheumatoid foot.	1979 Dec	A study of peak force exerted under areas of the foot was made in 27 patients with rheumatoid disease and in 30 normal persons. Patients were found to exert considerably less force under their toes and under the first metatarsal head and more force under the 3 outer metatarsal heads. It was possible to correlate these changes with increasing clinical and radiological severity.
694928	Serum vitamin B12 levels of patients with rheumatoid arthritis.	1978 Jul	To elucidate the role of vitamin B12 in the formation of anemia in patients with rheumatoid arthritis serum B12 levels were investigated in patients with rheumatoid arthritis, patients with osteoarthritis and normal subject. Serum B12 level in patients with rheumatoid arthritis was significantly higher than that in patients with osteoarthritis and normal subjects. Serum B12 level increased in proportion to Steinbrocker's stages, and was related more closely to hemoglobin concentration than to erythrocyte count and had a high correlation with alpha1- and alpha2-globulin.
4026884	Suppression of rheumatoid factor synthesis by antiidiotypic antibody in rheumatoid arthrit	1985 Aug	The effect of antiidiotypic antibody on the in vitro production of rheumatoid factor was studied in rheumatoid arthritis patients with cross-reactive idiotypic determinants. Antiidiotypic antibodies (ascites IgG) were developed against monoclonal rheumatoid factor (Ka m-RF) by a cell fusion procedure. These antibodies were idiotype-specific, since: 1) they reacted only with F(ab')2 fragment of Ka m-RF; 2) they failed to react with normal IgM without rheumatoid factor activity; and 3) their F(ab')2 fragment inhibited the rheumatoid factor activity of Ka m-RF. The antiidiotypic antibody strongly suppressed the in vitro production of rheumatoid factor by lymphocytes from unrelated rheumatoid arthritis patients with cross-reactive idiotypes. The suppression was specific, since ascites IgG failed to suppress in vitro anti-keyhole limpet hemocyanin antibody production by the lymphocytes. These results indicate that antiidiotypic antibody may influence the regulation of rheumatoid factor production in patients with rheumatoid arthritis.
7377866	Polyarthritis due to Mycobacterium kansasii in a patient with rheumatoid arthritis.	1980 Feb	A case of destructive polyarthritis due to infection by Mycobacterium kansasii is described in a 68-year-old patient with long-standing rheumatoid arthritis (RA) receiving prednisone and azathioprine therapy. Superimposed infection was suggested by positive Ziehl-Neelsen stains of synovial fluid from the patient's right shoulder and wrists, with confirmation on culture. Histological examination of synovium revealed abundant noncaseating granulomata within subsynovial cellular infiltrates. Treatment with triple antituberculous chemotherapy resulted in substantial extra-articular improvement within 3 months. However, articular destruction progressed unabated. A high index of suspicion is needed to diagnose joint infections in patients with underlying polyarthritis who are receiving immunosuppressive therapy. The progressive joint damage, despite periarticular resolution, may suggest the need for a combination of surgical synovectomy and antituberculous chemotherapy.
1198078	A comparative study of the protein pattern in serum and synovial fluid.	1975	A routine program for evaluation of the protein pattern in serum and synovial fluid has been tested on 25 patients in a consecutive study. The program comprised agar gel electrophoresis, total protein and albumin determination, and immunochemical determination of antitrypsin, orosomucoid, haptoglobin, IgR, and IgA. Linear correlation analysis of corresponding data in serum and synovial fluid gave r-values for the five latter components which varied from 0.74 to 0.87. On this basis reference intervals in synovial fluid could be established. Total protein, haptoglobin and IgG were elevated in rheumatoid arthritis, compared with osteoarthritis.
303392	beta2-glycoprotein I in rheumatoid arthritis.	1977 Jul	Serum beta2-glycoprotein I of the patients with rheumatoid arthritis was studied by means of single radial immunodiffusion method. There was a significant lowering of beta2-glycoprotein I concentration in patients with rheumatoid arthritis. An inverse proportional correlation was seen between the concentrations of beta2-glycoprotein I and of alpha1-antitrypsin, and between the former and C-reactive protein (CRP) rates in individual specimens. Slightly positive relationship was observed between the concentrations of beta2-glycoprotein I and of alpha2-HS glycoprotein. The beta2-glycoprotein I concentrations in healthy adults were significantly higher than those of previous reports.
893972	Differential diagnosis of the thrombophlebitis.	1977 Summer	Thrombophlebitis is a disease which is increasing in incidence because of increased longevity and because the effect on the clotting factor by modern drugs is difficult to diagnose, and the rate of accuracy in clinical diagnosis seldom exceeds 50%. In this paper, the authors present a clinical review of thrombophlebitis and discuss clinical findings of other diseases which may mimic thrombophlebitis. It is their hope that their findings may help practitioners to diagnose the disease with a greater degree of accuracy.
641914	Arthritis inflammation monitored by subcutaneous millimeter wave thermography.	1978 Spring	A new technique for remote, noninvasive mapping of temperature elevations of the human joints is described; it uses the mm wave radiation emitted by the human body. A solid state switched scanner for 68 GHz is described which overcomes the depth limitations of conventional, infrared thermographs and can measure to subcutaneous depths of several mm with a temperature resolution of 0.25 degrees C. Measurements on rheumatoid arthritic knee joints are presented which show little correlation with simultaneously measured skin temperatures. Significant longterm thermographic changes induced by steroid injection indicate a potential for objective patient monitoring and development of new treatment methods.
7253791	[Nodular lymphoid hyperplasia of the small intestinal, hypogammaglobulinemia and rheumatoi	1981 Jun	A case report is given of a patient with intestinal nodular lymphoid hyperplasia, hypoimmunoglobulinemia and seronegative rheumatoid arthritis with extensive deformation of joints, who was diagnosed and followed for 10 years clinically and by repeated endoscopic and bioptic examinations. It could be shown for the first time by temporary omission of corticosteroids that continuous therapy with corticosteroids is indispensable in this disease.
6745012	Problems of rheumatoid arthritis and ankylosing spondylitis patients in their labor and li	1984	The results of a sociomedical study performed in a representative group 715 patients of productive age comparising 545 cases of rheumatoid arthritis (RA) and 170 cases of ankylosing spondylitis (AS), are presented in this paper. The set was constituted by means of a stratified selection from 6 districts in Slovakia. Data about the patients were obtained by medical examination accompanied by a sociological survey carried out in the form of a semi-standardized interview. Among the 545 RA patients women prevailed (80.4%), while in the AS group it was men (83.5%). In so far as the age was concerned, most of the RA patients were in their 5th and 6th decades while the AS patients were 10 years younger. 2/3 of the patients with RA had but a primary grade education, a significantly higher level of education could be found among the AS patients. When taking into account the degree of advancement of the disease there was a marked preponderance of medium grade stages among the RA cases (71.3% of the cases were of grades II and III), while among the AS 2/3 of the cases were of grades IV and V. Notwithstanding the more advanced stages of the disease the AS patients were more efficient functionally: 61.2% of them remained in their original employment (while the RA patients only in 45.5% of the cases) and 2.9% of them were entirely dependent upon help of others in self-care (among the RA patients it was in 9.5%). 36.4% of the RA patients and 51.1% of the AS patients whose disease was active were exposed to the effect of the weather in their work. A full invalid rent had to be given to 46.8% of the productive age RA patients and only to 28.8% of those suffering from AS. There was a direct relationship between the patients' labour activity and their eventual relegation to an invalid rent reception state and the degree of their education. In environmental conditions of life the narrow space of the apartment influenced negatively the activity of the rheumatoid process. Understanding and a favourable atmosphere in the family had a positive influence upon the course of the disease and this, not only from the subjective viewpoint but also upon the degree of functional efficiency of the patients, their activity and the dynamics of the inflammatory rheumatoid process (P less than 0.001). A feeling of loneliness was reported by 51.5% of the RA patients even in the productive age and in 35.2% of the AS cases.(ABSTRACT TRUNCATED AT 400 WORDS)
6981434	The asymptotic efficiency of tests using misclassified data in contingency tables.	1982 Jun	A simple expression is given for the approximate upper bound of the asymptotic relative efficiency of tests between nested loglinear models using misclassified data versus those using data with no classification errors. This efficiency depends on the probabilities of data being misclassified into the wrong cells of the contingency table. An example demonstrates that the loss of efficiency due to misclassification can be substantial.
7308953	[Comparative study of piroxicam and indomethacin retard in arthroses].	1981 Nov 26	Indomethacin retard and piroxicam (Felden) were compared in an open, randomized parallel study in the treatment of osteoarthritis. Improvement of the symptoms of the disease was highly significant for both drugs. A statistical difference in the efficacy was not proved. Number and duration of the side effects were significantly lower with piroxicam than with indomethacin retard. Piroxicam was only applied once a day. Indomethacin retard was always (43% of the cases) or sometimes (14%) applied twice daily.
373436	Amyloid deposition in a renal allograft in a case of amyloidosis secondary to rheumatoid a	1979 Mar	A case of amyloidosis secondary to rheumatoid arthritis is presented in which renal transplantation was performed. Five years after transplantation the patient died following an episode of acute pancreatitis. During the intervening period the rheumatoid arthritis was considered quiescent, but his course was marked by several infectious processes caused by unusual organisms. The allograft function remained normal. Apart from renal amyloid the autopsy showed extensive generalized amyloidosis, most marked in vessel walls and endocrine organs. Amyloid deposits were located exclusively in the vessel walls of the transplanted kidney.
6242483	Rheumatoid non-lymphoid synovial cells and the induction of mixed leukocyte reactions. Low	1984	Interactions of autologous or allogeneic T cells with non-lymphoid synovial cells were investigated to study the mechanisms of T-cell activation in rheumatoid arthritis. The synovial cell fraction obtained by Percoll gradients contained an average of 31% cells positive for monocyte antigens and 62% intensely Ia-positive cells. Tissue cultures demonstrated large numbers of cells with a dendritic morphology. Mixed leukocyte reaction (MLR) cultures between these synovial cell preparations and autologous or allogeneic peripheral blood T cells as responder cells revealed low T-cell responsiveness with an average of 3900 dpm or 17 800 dpm, respectively, in contrast to 16 900 dpm or 79 600 dpm, using rheumatoid peripheral blood non-T cells (P less than 0.01), despite equivalent amounts of Ia antigens on both stimulator populations, as determined by cell-sorter analysis. The addition of indomethacin to these synovial cell/T cell co-cultures resulted in an enhancement of T-cell responsiveness; however, this increase did not reach statistical significance due to large test variations. Co-cultures of non-lymphoid synovial cells and PHA-stimulated autologous T cells induced a marked inhibition of T-cell proliferation that could partially be reversed by the addition of indomethacin. The reduction of monocyte-antigen-positive cells by depletion of iron phagocytic cells did not result in a significant enhancement of T-cell responsiveness. These data demonstrate that the majority of non-lymphoid synovial cells, despite the presence of large amounts of Ia-antigens, are not potent inducers of T-cell proliferation and strong suppressing cells in polyclonal T-cell activation. These effects do not appear to reside in the macrophage fraction alone and can only partly be attributed to the action of prostaglandins.
6480030	Antigenicity of proteins from cultured synovial fibroblasts.	1984 May	We were able to characterize about 25 antigenic proteins of cultured synovial fibroblasts with apparent molecular weights of 15-230 kd by SDS-electrophoresis and immunoblotting using guinea pig antiserum. Some of these proteins were bovine-serum-derived, adsorbed onto fibroblasts from culture medium. Both rheumatoid and normal sera contained natural antibodies reacting with synovial fibroblast as well as bovine serum antigens when studied with immunoblotting. The amounts of antibodies were quantitated with enzyme immunoassay, measuring IgG and IgA class antibodies against plasma membrane preparations of rheumatoid and normal synovial fibroblasts. No rheumatoid arthritis-related changes were detected in synovial fibroblast protein antigens or antibodies against them in rheumatoid patient specimens.
636670	The photometric latex test for rheumatoid factors in patients with rheumatoid arthritis. I	1978 Mar	The photometric latex test (PLT) for the detection of rheumatoid factors (RF) has been correlated with the sensitized sheep cell test (SSC) and the latex slide test (LST). A total of 377 sera from patients with rheumatoid arthritis (RA) and 120 sera from control subjects were examined. When the PLT was carried out on the native sera at a lower buffer ionic strength (0.05 M), agglutination was noted in over 99% of cases, indicating interaction of complement with human immunoglobulin bound to the latex particle surface. Although thermal inactivation eliminated most of the complement agglutination, an increase in ionic strength (0.5 M) was found to be essential for measuring only RF agglutination. The serologic data were analysed statistically by computer. A highly significant correlation was found between all serologic tests and RA sera, but there was no such correlation with the control sera. The specificity of all tests was generally over 90% and did not vary significantly, but the sensitivity varied from 52.0% to 71.1%, confirming that about one-third of all RA patients are seronegative. The tests were analysed for their total diagnostic capability. The PLT with native sera at higher ionic strenght proved to be the most sensitive, but with thermally inactivated sera it had a better diagnostic capacity. The SSC test appeared to be less sensitive and of lower diagnostic validity. Rapid LST tests were clearly inferior to PLT tests. The PLT can be used as a reliable and straightforward serologic method of diagnosis in RA, especially when carried out at a higher ionic strength and with thermally inactivated sera. It should be given preference over other serologic tests for RF and could well become standard practice in rheumatologic serology as a substitute for the SSC test.
7320201	Immunoglobulin E-rheumatoid factor in the serum of patients with rheumatoid arthritis, ast	1981 Dec	A solid-phase radioimmunoassay was developed to detect immunoglobulin (Ig)E antibodies that bound to human IgG. IgE-rheumatoid factor activity was found in the serum of 18 of 20 patients with seropositive rheumatoid arthritis, 1 of 4 patients with seronegative rheumatoid arthritis, 3 of 32 patients with seronegative rheumatoid arthritis, 3 of 32 patients with asthma, and in 1 patient with hypocomplementemic vasculitis and iodide sensitivity. Immunopathologic implications of IgE-rheumatoid factor are discussed.
6830043	Obstructive sleep apnea associated with adult-acquired micrognathia from rheumatoid arthri	1983 Feb	The onset of severe obstructive sleep apnea occurred in one patient as he developed adult-acquired micrognathia from destruction of the temporomandibular joints by rheumatoid arthritis. Despite the anatomic deformity, nearly normal upper airway patency was maintained during wakefulness, as measured by upper airway resistance during peak tidal flow rates. Adult-acquired micrognathia from rheumatoid arthritis may be associated with obstructive sleep apnea. Anatomic deformity of the upper airway in patients with obstructive sleep apnea is not necessarily associated with marked decreases in airway patency during wakefulness.
1275675	Medical recommendations--followed or ignored? Factors influencing compliance in arthritis.	1976 May	Physiatrists are frequently confronted by the failure of patients to follow medical advice, with resultant adverse effects on rehabilitation outcomes. This paper examines the compliance of arthritis patients with an exercise regimen. A number of factors are examined in this study in assessing elements related to patient compliance. Included are patient attributes and perceptions, professional home visits and form of instruction in the regimen and selected features of the patient's social environment. Age, activity status and marital status, use of medications, patient understanding of arthritis and professional home visits appear to have a bearing upon patient compliance. Careful attention to factors likely to influence patient compliance will prove helpful in efforts designed to enhance rehabilitative progress and, ultimately, improve the lives of patients.
6867589	[Assay of rheumatoid factor by laser nephelometry. A study of 1,000 sera].	1983 Mar	The detection and assay of Rheumatoid Factor (RF) are possible using laser nephelometry as the reaction between circulating RF and aggregated human IgG results in the formation of soluble immune complexes which scatter the light emitted by the laser. The use of this new method in 1,000 sera shows that this test is more sensitive, positive earlier and more reproducible than the usual reactions of passive agglutination. Its complete automation makes it very rapid and very reliable.