Search for: rheumatoid arthritis methotrexate autoimmune disease biomarker gene expression GWAS HLA genes non-HLA genes
| ID | PMID | Title | PublicationDate | abstract |
|---|---|---|---|---|
| 2379957 | Auranofin-induced suppression of autoimmune antibody production and inflammation in geneti | 1990 Aug | The gold compound auranofin and lobenzarit (CCA) were compared in regard to effects on development of an autoimmune-like disease in MRL/1 mice, which normally develop elevated levels of serum anti-DNA antibodies and rheumatoid factor as well as joint lesions similar to those seen in patients with rheumatoid arthritis. MRL/1 mice, which are genetically prone to development of autoimmune disease, were given auranofin or lobenzarit by gavage for 15 weeks, starting at 6 weeks of age. Mice were examined periodically for immunological abnormalities as well as histologic changes in articular joints. The auranofin-treated mice showed marked diminution in development of anti-DNA antibodies and serum rheumatoid factor as compared to control animals. Although higher than in the auranofin-treated animals, CCA-treated mice also had lower levels of serum autoantibodies than those seen in the control animals. Examination of limb joints for histopathologic changes indicated that the auranofin-treated animals developed only the slightest evidence of lesions as compared to control animals. CCA-treated mice also had a lessening of lesion development compared to control animals, but lesions were more developed than in auranofin-treated mice. This study indicates that auranofin is more effective than CCA in diminishing development of autoimmunity in MRL/1 mice. | |
| 1747145 | Erosive arthritis in monoclonal gammopathy of uncertain significance: report of four cases | 1991 Dec | We report 4 case histories in which an erosive arthritis was associated with the presence of a monoclonal gammopathy of uncertain significance. In all 4 cases, the appearance of paraprotein was noted either before or during the development of the arthritis. Two patients had a rather atypical oligoarthritis, while the others had a rheumatoid-like, symmetric polyarthritis. A synovial amyloid deposit was present in 2 patients, while mild mixed mononuclear infiltrates were the main pathologic finding in the others. In 2 patients, immunohistochemical investigation demonstrated deposits of immunoglobulin-derived material of the same isotype as the monoclonal component in the synovial tissue. | |
| 3439555 | Distinct distribution of periarticular erosions of the bones of the hand in chronic renal | 1987 | The frequency of radiological changes of the bones of the hand in 142 patients on hemodialysis, 19 on CAPD, and 15 patients with advanced renal insufficiency not requiring dialysis was analyzed. Forty-seven percent of all patients had subperiostal cortical bone resorptions, 31% periarthritis calcarea, 22% periarticular erosions, 3% chondrocalcinosis and 1% aseptic necrosis. Sixty-six percent of the periarticular erosions were observed in the distal and proximal interphalangeal joints of fingers II, III, IV and V, whereas only 33% were found in the remaining joints (120 vs. 62, p less than 0.001). The distal interphalangeal joints showed about 70% more often periarticular erosions than the proximal interphalangeal joints (77 vs. 43, p less than 0.001). Since patients with chronic renal failure exhibit a decreasing incidence of periarticular erosions from the distal interphalangeal joints to the intercarpal joints, while patients with rheumatoid arthritis have their erosions preferentially localized in the proximal interphalangeal, metacarpophalangeal and wrist joints, it can be concluded that renal osteodystrophy causes a distinct distribution of periarticular erosions of the bones of the hand. | |
| 1747696 | Joint space in radiologically normal knees. | 1991 Dec | Joint space loss is a characteristic feature of rheumatoid arthritis and osteoarthritis. It cannot be fully evaluated, however, without knowledge of the normal variability of joint space size. We have measured joint space size using digital image analysis in a population of radiologically normal individuals. Anteroposterior films of the knee were studied from 685 consecutive patients attending Casualty with unexplained knee pain or following trauma, but with no clinical or radiological evidence of arthritis. Results show that in a radiologically normal population, men have larger joint spaces than women and there is a steady decline in joint space size with age. We found no significant difference in joint space size between weight bearing and non-weight bearing women. There was also no difference in patients presenting with pain and those presenting following an injury. Normal joint space size was not related to height, weight or body mass index in a subgroup of 213 patients. We suggest that patients lose joint space with increasing age and eventually reach a 'pain threshold' at which symptoms of osteoarthritis occur. This explains the increase in joint symptoms in those who begin with smaller joint spaces; that is in women and in the elderly. | |
| 2784740 | Arthritogenic actions of recombinant IL-1 and tumour necrosis factor alpha in the rabbit: | 1989 Feb | Intra-articular injection of highly purified or recombinant interleukin 1 (IL-1) into the rabbit knee induces a transient synovitis with leucocytic infiltration into the synovial lining and joint cavity and loss of proteoglycan from articular cartilage. Tumour necrosis factor alpha (TNF-alpha), which has many of the actions of IL-1, in the dose range 50-5,000 ng induced infiltration of leucocytes into the joint but failed to cause significant proteoglycan loss from cartilage. The nature of the leucocytic infiltrate induced by intra-articular TNF-alpha was predominantly monocytic compared with the mixed polymorphonuclear (PMN)/monocytic infiltrate induced by IL-1. Neither cytokine induced the accumulation of significant numbers of lymphocytes. In addition, on a molar basis, TNF-alpha was significantly less active than IL-1 in causing cell accumulation in the joint. Injection of submaximal doses of IL-1 and TNF into the rabbit resulted in a marked synergy with respect to the accumulation of PMN. The conclusion from these studies is that TNF-alpha could contribute to the PMN accumulation in the human joint in rheumatoid arthritis but is unlikely to be important in the destruction of articular cartilage. | |
| 2692128 | Mechanisms involved in the pathogenesis of Yersinia infections. | 1989 | Yersinia enterocolitica and Yersinia pseudotuberculosis are food-borne enterobacterial pathogens which may initiate rheumatoid diseases. By molecular genetic analysis of the pathogenicity of these species virulence gene loci could be identified on the chromosome and on a plasmid. Plasmid-encoded proteins mediate cell adherence, phagocytosis resistance, survival in serum, cytotoxicity, and collagen binding. Y. enterocolitica of serotype 0:8 is mouse-lethal and arthritogenic for Lewis rats. Mouse lethality is closely associated with the expression of a chromosome-encoded high-affinity iron transport system which enables the pathogen to acquire iron for growth in iron-deficient environments. The antibody response to virulence-associated antigens of arthritis-susceptible Lewis rats differed from that of arthritis-resistant Fisher rats: Lewis rats respond strongly to the collagen-binding protein Yop1 and weakly to the iron-transport receptor protein FyuA, whereas the reverse is found with Fisher rats. This specific antibody response of Lewis rats is suggested to be important for induction of arthritis. | |
| 3373422 | Role of lysosomes in hepatic accumulation of chloroquine. | 1988 Mar | At therapeutic free concentrations (120-360 nM in rheumatoid arthritis), the accumulation ratio for chloroquine (7-chloro-4-[[4-(diethylamino)-1-methylbutyl]amino]-quinoline; CQ) in viable isolated rat hepatocytes is 795 +/- 33, which is of the same order of magnitude as in vivo hepatic uptake in the rat. The accumulation ratio is much lower in nonviable hepatocytes (12.4 +/- 0.5), showing that accumulation in membranes of hepatocytes accounts for a negligible proportion (less than 3%) of total accumulation at therapeutic free concentrations. This also indicates that the predominant mechanism of accumulation is dependent on structural integrity of cells and/or organelles. The accumulation ratio for CQ in viable hepatocytes is markedly reduced by NH4Cl and the metabolic inhibitors KCN and NaF. Since intralysosomal pH is known to be elevated in the presence of some weak bases (including NH4Cl and CQ) and metabolic inhibitors, this suggests that hepatic accumulation of CQ is a consequence of ion trapping in the acidic interior of lysosomes. Accumulation is linear at therapeutic free CQ concentrations; however, at CQ concentrations well above the therapeutic range, the accumulation ratio is markedly reduced. This is consistent with the known capacity of CQ to raise intralysosomal pH at these concentrations. | |
| 3492856 | Alpha 1-antitrypsin in acute anterior uveitis and rheumatic diseases. | 1986 Oct | To test the pathogenetic role of the phenotype MZ of alpha 1-antitrypsin/alpha 1-protease inhibitor (PI) in acute anterior uveitis (AAU) and in different rheumatic diseases we examined 360 unrelated patients including 93 with AAU alone, 24 patients with AAU and ankylosing spondylitis (AS), 21 patients with AAU and Reiter's disease (RD), 26 patients with AAU, AS, and RD 54 patients with AS alone, 16 patients with RD alone, 115 patients with rheumatoid arthritis (RA) alone, and 11 patients with psoriatic arthritis (PA) alone. Of the 164 AAU patients, 80 had a single attack, and 84 had repeated episodes. There were neither significant differences between different groups of the patients and 120 healthy controls nor between patients with AAU alone and patients with AAU and AS or RD in the frequencies of the PI phenotypes tested. The results indicate that the PI MZ type is not closely associated with AAU, AS, RD, RA and PA and that it does not play any role in determining whether AAU shows a pattern of a single attack or repeated episodes, and whether AAU occurs alone or together with AS or RD. | |
| 2082178 | [Sjögren's syndrome in childhood. Description of a clinical case]. | 1990 Nov | A case is reported of Sjögren's syndrome in childhood. According to Fox's classification, this patient presented all four inclusion criteria for the diagnosis of the disease. The Authors report the satisfactory evolution of the disease using therapy with FANS and corticosteroids and immunosuppressors during acute exacerbations. | |
| 2736832 | Anti-La (SS-B): a diagnostic criterion for Sjögren's syndrome? | 1989 Mar | We examined the diagnostic sensitivity and specificity of antibodies to Ro (SS-A) and La (SS-B) in Sjögren's syndrome (SS) by counterimmunoelectrophoresis and immunodiffusion. Anti-Ro was found in 56% and anti-La in 42% of patients with SS and in 38% and 6% respectively in SLE. Anti-La was rare (less than 1%) in other connective tissue diseases. As a more stringent test of diagnostic specificity, 88 patients whose sera contained anti-La and/or anti-Ro were carefully examined for evidence of Sjögren's syndrome. Of 35 patients whose sera contained anti-La, 29 (83%) fulfilled criteria for SS, and four out of 6 of the remainder showed some evidence of early disease. Of 53 patients with anti-Ro (without anti-La), only 42% had Sjögren's syndrome, 45% had SLE and 13% other connective tissue diseases. These data confirm that anti-La, but not anti-Ro, has a high diagnostic specificity for Sjögren's syndrome and merits inclusion as separate diagnostic criterion for the disease. | |
| 2704982 | Fibromyalgia features in patients with primary Sjögren's syndrome. Evidence of a relation | 1989 | The prevalence of musculoskeletal complaints suggestive of the fibromyalgia syndrome (FS) was evaluated in 30 patients with primary Sjögren's syndrome (1 degree SS) and in two control groups of patients with osteoarthritis (OA) and diabetes mellitus (DM). In addition, the presence of depressive state was investigated in patients and controls using the Hamilton rating scale and an Italian self-evaluating test. Fibromyalgia features were found in 14 1 degree SS patients (47%), in 21 OA (70%) and in 10 DM (33%) controls. 1 degree SS patients showed the highest prevalence (47%) of moderate-severe depression with respect to OA (20%) and DM (7%) groups (p less than 0.01). Furthermore, while FS features correlated closely with both tests for depression in 1 degree SS (p less than 0.001), this correspondence was absent or much less significant in the other disease groups. Finally, neither psychopathological features nor FS complaints appeared to be related to the other clinical and serological findings of 1 degree SS. | |
| 2660136 | Treatment of xerostomia through use of dentures containing reservoirs of saliva substitute | 1989 | A 53-year-old woman was referred to the University Dental Clinic because of ocular and oral dryness during the previous year. She also had urticaria and was receiving medication for postmenopausal hormonal problems. The patient was wearing full dentures. Resting saliva flow rate (RSFR) and stimulated saliva flow rate (SSFR) were 0 ml/5 minutes and 0.5 ml/10 minutes, respectively. The patient was given Sulfarlem (trithioparamethoxyphenylpropene), tablets (25 mg) for six months. There was no significant improvement in flow rate. Medication was terminated as ineffective. Seven months later, full dentures with reservoirs of saliva substitute were constructed according to Vissink. The reservoir of the upper denture functioned satisfactorily for two weeks, after which the latex membrane valve became detached. The valve system was replaced with a Gerber matrix housing, which functions even without a latex membrane. The dentures were further improved by making a stainless steel plug constructed from a burr fitting into the matrix housing. This was found to effective in reducing the discharge of saliva substitute from the reservoir. Symptomatic treatment may be the treatment of choice in cases of xerostomia where no functional salivary gland tissue is present. | |
| 2095612 | Sjögren's syndrome with bronchial gland involvement and multiple bullae. | 1990 | A 52-year-old woman with Sjögren's syndrome presented with a dense lymphocytic infiltrate around the bronchial gland disclosed by a transbronchial lung biopsy specimen. Two and a half years after the initial evaluation, her pulmonary status had deteriorated and multiple bullae had developed at both lung bases. | |
| 2591077 | Stimulated eccrine gland function in primary Sjögren's syndrome. | 1989 May | Sweat secretion rate, stimulated by iontophoresis of pilocarpine, was measured in 22 patients with primary Sjögren's syndrome and 22 age- and sex-matched normal control subjects. There was no significant difference in measured sweat rates (P = 0.45). We conclude that the complaint of dryness of the skin in patients with Sjögren's syndrome is not due to decreased eccrine gland secretion. | |
| 3736979 | [Sarcoidosis of oculo-parotid onset. Differential diagnostic considerations]. | 1986 Jul 31 | Two cases of sarcoidosis, presenting with parotid gland enlargement and keratoconjunctivitis sicca, are here described. The difficulty encountered in making correct diagnosis is then stressed. The diagnostic value of invasive and non invasive techniques in the study of parotid gland pathology and function in sarcoidosis is then reviewed. | |
| 1938076 | Annular erythema. A comparative study of Sjögren syndrome with subacute cutaneous lupus e | 1991 Sep | Annular erythema developed in 22 patients with Sjögren syndrome. Clinically, the annular erythema was subdivided into three forms: Sweet disease-like annular erythema with an elevated border (14 cases); subacute cutaneous lupus erythematosus (SCLE)-like marginally scaled erythema (5 cases); and papular erythema (3 cases). Histopathologically, features commonly seen in annular erythema are deep perivascular and/or periappendageal infiltration of the lymphocytes with an admixture of neutrophils or plasma cells and less frequent epidermal changes suggestive of cutaneous lupus erythematosus. Immunoglobulin or complement deposition along the dermoepidermal junction of lesional skin was observed in 8 of 18 cases, and most of the dermal infiltrates consisted of CD4(+), 4B4(+) cells. The appearance of anti-SS-A(Ro) (100%) and anti-SS-B(La) (77%) was significantly higher in patients with annular erythema. These results suggest that patients with Sjögren syndrome might have a distinct annular erythematous lesion that is both clinically and histopathologically different from SCLE, although close immunologic abnormalities exist in these two diseases. | |
| 1797783 | Ultrasonography of the salivary glands in the evaluation of Sjögren's syndrome. Compariso | 1991 | Ultrasonography (US) was evaluated as noninvasive method to determine salivary gland involvement and compared with sialography in patients with Sjögren's syndrome (SS) and patients with only objective xerostomia and/or xerophthalmia. Patients with complaints of dry eyes and dry mouth but with no objective abnormalities served as control group. Ultrasound revealed a decreased parotid gland reflectivity in most of the patients with SS, compared with only 2 patients in the other group (p = 0.002). Our study suggests that US can be a useful, noninvasive method in the diagnostic work-up of patients with sicca complaints. | |
| 2749787 | [Clinical and x-ray characteristics of the periodontium in Sjögren's disease]. | 1989 Jan | Clinical and X-ray examination of parodont was performed in 35 patients with Sjögren disease and 35 control patients. Osteal parodont X-ray examination was performed using the techniques of panorama and orthopantomography. As a result of clinical and X-ray investigation, the patients showed a lesser degree of the diffuse osseal parodont resorbtion as compared to controls that was evidenced by a lack of clinical manifestations of the parodont inflammation. This is possibly due to the absence, in a majority of the patients, of the mineralized dental concrements. The focal inflammatory disorders were connected to local trauma factors. | |
| 1999301 | Dry mouth: diagnosing and treating its multiple causes. | 1991 Mar | Dry mouth in the elderly is a common occurrence with multiple etiologies. It is not a normal phenomenon of aging and, therefore, an attempt at elucidating its cause should be made. Sjögren's syndrome may occur, and it is diagnosed by labial biopsy. Medications are also frequently associated with dry mouth, and dosages may need to be adjusted or the drug discontinued if symptoms are severe. Strategies for management of dry mouth are explored. | |
| 3396429 | Sjögren's syndrome with multiple bullae and pulmonary nodular amyloidosis. | 1988 Aug | We treated a patient with Sjögren's syndrome associated with multiple bullae and pulmonary nodular amyloidosis, both of which were identified by open lung biopsy. The mechanism of bullae formation appeared to be narrowing of the airway, as a result of extensive inflammatory cell infiltration to the bronchiolar wall, which acted as the check valve mechanism. We believe this to be the first reported case of Sjögren's syndrome accompanied by these two pulmonary manifestations. |