Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0003873 (rheumatoid arthritis)
 53,068 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Heterophile, Hanganutziu-Deicher (H-D) antigen was studied in pathologic sera by means of inhibition of agglutination of bovine erythrocytes by H-D antibodies. H-D antigen was demonstrated in 38% of random cancer sera, 25% of lymphoma or leukemia sera, 25% of leprosy sera, 8% of infectious mononucleosis sera, 6% of rheumatoid arthritis sera, and 27% of synovial fluids of rheumatoid arthritis patients. None of 134 normal human sera gave positive results. Some of the inhibition-positive cancer sera formed precipitation lines with H-D antibody-containing sera. Over 50% of various extracts of cancer tissues as well as spleens of lymphoma or leukemia patients were shown to contain H-D antigen by means of the inhibition test.
 ...
PMID:Hanganutziu-Deicher antigen and antibody in pathologic sera and tissues. 10 27

Immune complexes were detected in 51 sera from patients with a variety of immunological diseases; 14 systemic lupus erythematosus (SLE); 14 infectious mononucleosis (IM); 12 rheumatoid arthritis (RA) and 11 subacute bacterial endocarditis (SBE). Three methods were used to detect complexes: the fluid--phase Clq binding assay (Clq.BA); the solid--phaseClq binding assay (Clq.SP) and the Raji cell radio-immunoassay (RIA). Modification of the Clq.SP and the Raji cell RIA by use of monospecific antisera to immunoglobulins G, A and M enabled the class of antibody in the immune complexes to be determined. Antibodies of all three classes were found in each disease, the predominant ones being IgG and IgM in SLE and SBE, IgM and IgA in RA and IgM in IM.
 ...
PMID:The detection of immune complexes of different immunoglobulin class. 29 21

A characteristic alkaline phosphatase (orthophosphoric monoester hydrolase, alkaline pH optimum, EC 3.1.3.1) was detected in the sera of most patients with infectious mononucleosis, acute and chronic lymphatic leukaemia, non-Hodgkin's lymphoma, Burkitt's lymphoma and nasopharyngeal carcinoma. The enzyme was also present in the sera of nine out of 26 patients with cancer of the cervix. N-APase in these cases counted 30-100% of the total alkaline phosphatase activity. N-APase was absent from the sera of healthy individuals and of patients with acute and chronic granulocytic leukaemia, breast cancer, colon cancer, rheumatoid arthritis, ulcerative colitis, systemic lupus erythematosis, hepatitis and obstructive jaundice. Only three of 22 patients with Hodgkin's disease showed n-apase activity in the serum. In infectious mononucleosis the presence of N-APase activity was well correlated with the clinical course. In 13 cases studied, the clinical improvement was associated with the decrease or disappearance of N-APase activity. N-APase activity could not be detected in white cells of acute myeloid leukaemic patients, nor in the cells of myeloid blastic crisis of chronic granulocytic leukaemia. It was present in the cells of lymphoid blastic crisis of chronic granulocytic leukaemia.
 ...
PMID:N-alkaline phosphatase: a potential disease marker for lymphoproliferative disorders. 43 2

Pleural tissues from a group of 36 consecutive patients comprised of 15 malignancies, 3 tuberculous, 2 rheumatoid arthritis, 3 procainamide-induced systemic lupus erythematosus (SLE) syndromes, 1 infectious mononucleosis, and 12 nonspecific pleural effusions undergoing needle biopsy were studied by immunofluorescent techniques for antibody deposition. Specific nuclear fluorescence was detected only in procainamide-induced SLE and was characterized by in vivo staining with either IgG, IgM, and in one case, also C3. C1q could not be detected. Two other patients who had antinuclear antibodies (ANA) in their peripheral blood did not have detectable in vivo antinuclear staining in their pleural tissue. The presence of in vivo fixation of ANA in the pleura may be of etiologic and diagnostic significance in procainamide-induced SLE syndrome.
 ...
PMID:Antibody deposition in the pleura: a finding in drug-induced lupus. 65 31

Antiglobulins are a heterogenous group of antibodies specific for a large number of antigenic determinants on the heavy chains of various classes and on light chains. They are capable of reacting with hidden antigenic determinants of gamma globulins after they have been exposed by the action of proteolytic enzymes or after antigen-antibody reaction during which changes occur in the spatial configuration of the Fc fragments of immunoglobulin causing that they assume immunogenic properties. Antiglobulin antibodies against episomes in the Pab fragment of other antibodies have a strong regulatory influence on the immune response in view of their ability of specific interference with the response to a specific antigen. Antiglobulin antibodies may exert a protective effect but also a pathogenic effect. The latter has been demonstrated in atopic diseases, in IgA glomerulonephritis, in rheumatoid arthritis, in infectious mononucleosis, cryoglobulinaemia, in patients with IgA deficiency associated with presence of antiglobulin antibodies to IgA after transfusion of plasma or intravenous infusion of gamma globulins containing IgA.
 ...
PMID:[The role of antiglobulin antibodies in pathophysiology of various internal diseases]. 129 35

The human herpes virus 6 (HHV 6) may induce not only the wellknown condition of exanthem subitum, but also a number of more common (cf. Part 1) or rare, even previously unknown, clinical manifestations. Part 2 of this paper deals with the more rarely observed manifestations. These include complications of ARD (sinusitis, otitis media, bronchial pneumonia) hepatitis, encephalitis or Pfeiffer's disease (mononucleosis-like syndrome). In individuals with a relevant disposition (genetic HLA/DR type?) initiation or (re-)activation of rheumatoid arthritis (JCA = juvenile chronic arthritis) or chronic iridocyclitis may occur. Although, on account of the high prevalence of vaccination in our population (approximately 95%), prenatal infections are extremely rare, they may manifest in a severe "septic" form (fatalities have occurred) or may lead to neurological deficits (comparable with cytomegalovirus infection). To date, no specific therapy (e.g. gammaglobulin, virostatics) or reliable preventive measures (e.g. vaccination) are available.
 ...
PMID:[Infections with herpesvirus 6--really only "exanthema subitum"? Part 2: Rare or unknown disease pictures]. 133 53

Pseudohyperkalemia, defined as serum to plasma potassium difference of more than 0.4 mmol/l, occurs when platelets, leukocytes or erythrocytes release intracellular potassium in vitro, leading to falsely elevated serum values. Pseudohyperkalemia has been observed in myeloproliferative disorders [1], including leukemia [2] and infectious mononucleosis [3] as well as in rheumatoid arthritis [4]. We present 2 patients with renal disease and thrombocytosis in whom pseudohyperkalemia was recognized only after common therapeutic measures and/or dialysis failed to effect a decrease in serum potassium. In patients with renal disease and thrombocytosis, plasma as well as serum potassium should be routinely measured prior to instituting aggressive therapy or altering dialysis prescription in order to avoid potentially dangerous overtreatment with resulting hypokalemia.
 ...
PMID:Unrecognized pseudohyperkalemia as a cause of elevated potassium in patients with renal disease. 141 52

Sensitive ELISA were devised to examine the specificity of circulating IgM and IgA autoantibodies for whole human IgG, Fc and Fab fragments of human IgG. Sera from patients with autoimmune and infectious conditions such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), tuberculosis (TB), infectious mononucleosis (IM) and cystic fibrosis (CF) were studied. Results of the ELISA assays using whole human IgG as antigen revealed that a proportion of patients in each of the groups studied had circulating IgM and IgA rheumatoid factors (RF). Fifteen normal individuals studied were negative. In the latex positive RA group, IgM RF and IgA RF had primarily anti-Fc reactivity (100% and 93% respectively), although 3/15 patients also showed IgM anti-Fab reactivity and one patient had high IgA anti-Fab activity. Patients with SLE and TB who had detectable RF levels also revealed predominantly anti-Fc specificity. In contrast, examination of 25 patients with IM showed positivity for IgM RF activity in 8% of patients using whole IgG as antigen, 24% positivity using purified Fc fragments as antigen and 45% positivity when plates were coated with Fab fragments. Similarly, a large number of CF patients (54%) also showed predominantly IgM anti-Fab activity. Of interest, 69% of the CF patients who were all studied at the time of bacterial infection had detectable IgA RF levels, with 46% of these patients showing both IgA anti-Fc and anti-Fab activity. These findings suggest that autoantibody specificities in autoimmune and infectious diseases are different.
 ...
PMID:Prevalence of anti-Fab antibodies in patients with autoimmune and infectious diseases. 151 58

Few doctors routinely examine the epitrochlear glands as part of their physical examination of a patient. No palpable epitrochlear nodes were detected in 140 healthy subjects, but palpable epitrochlear nodes were present in 27% of 184 patients with diseases in which lymphadenopathy occurs. Whilst epitrochlear nodes are commonly enlarged in specific acute, subacute, and chronic infections, they are not enlarged in the mild, transient, non-specific febrile illnesses with cervical lymphadenopathy of children and young adults. Enlarged epitrochlear glands provide a useful discriminatory sign in the diagnosis of glandular fever. Enlargement of these nodes is common in most of the lymphoproliferative disorders except Hodgkin's disease. In rheumatoid arthritis their palpability indicates activity of hand joints. The examination of epitrochlear nodes should form part of the routine physical assessment of any ill patient.
 ...
PMID:Enlarged epitrochlear lymph nodes: an old physical sign revisited. 158 23

Human adenosine deaminase (ADA; EC 3.5.4.4) consists of three isoenzymes: ADA1, ADA1+CP, and ADA2. We developed an electrophoretic technique to distinguish between these three isoenzymes. The isoenzyme pattern was studied in tissue and cell homogenates, as well as in serum from normal subjects and from patients with increased serum ADA who had either hepatitis, infectious mononucleosis, tuberculosis, pneumonia, rheumatoid arthritis, or acute lymphoblastic leukemia (ALL). The highest ADA activity was found in lymphocytes and monocytes. ADA2 could be detected only in monocytes (18% of total ADA activity). It was also the predominant isoenzyme in the sera of controls and all disease groups, except for ALL--the only condition evaluated that is not of an inflammatory nature. We conclude that serum ADA reflects monocyte/macrophage activity or turnover in most diseases studied. The exception is ALL, where serum ADA most probably originates from lymphocyte precursors.
 ...
PMID:Serum adenosine deaminase: isoenzymes and diagnostic application. 162 98


1 2 3 4 5 6 7 Next >>