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Biomedical subjects

H Isomäki

Publications and source records attributed to H Isomäki.

At least 109 records · Page 6Linked to original sources
PubMed1983

The value of the diagnostic criteria in rheumatoid arthritis.

The ARA and the New York diagnostic criteria for rheumatoid arthritis were studied in 411 patients with a recent inflammatory joint disease (100 with RA, 311 with other disease) in order to evaluate their value in distinguishing progressive rheumatoid arthritis from other joint diseases. Rheumatoid factor, symmetrical polyarthritis, morning stiffness, and X-ray changes were of the greatest value in diagnosing RA in the early stage of the disease. Other diagnostic criteria had either a poor specificity or sensitivity, and were thus of less importance as discriminators.

Arthritis, Rheumatoid↗
PubMed1982

Planning system's response to the challenge of rheumatic diseases.

The article will treat the following three sections of the national planning in regard to musculoskeletal diseases: research planning, planning of prevention, treatment and rehabilitation by specialists, and planning performed by political decision makers. The national planning system has reacted to the challenge created by the increasing social handicap due to musculoskeletal diseases.

Decision Making↗
PubMed1981

Fibronectin in synovial fluid and tissue in rheumatoid arthritis.

Fibronectin is a glycoprotein found in body fluids, loose connective tissue matrix and in basement membranes. Fibronectin in rheumatoid arthritis synovial fluid was immunologically indistinguishable from the plasma form, as shown by double-diffusion analysis. Fibronectin isolated from rheumatoid synovial fluid by affinity chromatography on gelatin--Sepharose had a polypeptide pattern similar to that of plasma fibronectin in SDS--polyacrylamide gel electrophoresis. In fifty-one patients with rheumatoid arthritis and related diseases fibronectin concentrations is synovial fluid were 445 +/- 103 micrograms/ml (mean +/- SD) and within normal range, 335 +/- 52 micrograms/ml, in plasma. Immunofluorescence staining showed a prominent increase of fibronectin in the proliferating synovial connective tissue in rheumatoid arthritis as compared to normal synovial membrane. The results suggest an increased local production of fibronectin in rheumatoid synovial tissue.

Arthritis, Rheumatoid↗
PubMed1981

Evaluation of six tests for circulating IgG complexes with special reference to IgM rheumatoid factors: analysis of systemic lupus erythematosus and rheumatoid arthritis series.

Six tests for circulating immune complexes (CIC) developed in four laboratories and representing four main principles [affinity of human platelets, Clq, of RF for aggregated IgG, and of conglutinin (Kg) for complex-bound C3] were evaluated on series of SLE and definite RA. All tests detected human model complexes in the presence of NHS and discriminated the patient series from the blood donor series, most powerful being the PIPA (platelet test). The high correlation between the RF-binding inhibition tests (RFbI) and the RF-latex test suggested interference due to intrinsic RFs. This received further support from experimental analyses in which RA sera mixed with varying doses of heat-aggregated IgG were assayed by the pRFbI test.

Antigen-Antibody Complex↗
PubMed1980

Early rheumatoid arthritis in the USSR and in Finland.

In 1974-76 patients with early rheumatoid arthritis (duration less than or equal to 6 months) were investigated at the Institute for Rheumatism, Moscow, and at the Rheumatism Foundation Hospital, Heinola, Finland. Of 200 patients in each centre, 142 sex- and age-matched patients were chosen and followed up for one year. Despite common selection criteria, appreciable differences were found in clinical involvement, X-ray findings and laboratory results. Many of these may be due to difficulties in the standardization of methods rather than to actual national differences in the clinical picture and course of the disease. In both institutions, almost every patient was given systemic antirheumatic drugs, but there were notable differences in the choice of drugs: gold was preferred at Heinola, chloroquine or cytostatics were more commonly used in Moscow. The use of both local and peroral corticosteroids was similar, while surgery was used only in Heinola and spa treatment only in Moscow.

Adolescent↗
PubMed1978

Gold treatment at an early stage of rheumatoid arthritis.

The progression of erosive X-ray changes over a period of 5--6 years was evaluated in 39 patients exposed to a mean dose of 2030 mg aurothiomalate during the maintenance period. The cause for the low dose was the initial high incidence of side-effects. The progression of erosions was highest in patients with the low dose of gold in the initial stages of the disease. The best result in preventing development of erosions was achieved in patients with the high dose of gold in the early phase of the disease. It appears that gold treatment prevents the progression of the erosoins. The earlier the inception of treatment, the better the result.

Adult↗
PubMed1978

Incidence of inflammatory rheumatic diseases in Finland.

The incidence of inflammatory joint diseases was estimated by using two patient series. Firstly, the total yearly incidence of all such diseases together was estimated in a population of 15 600 persons of 16 years of age or older. Secondly, this overall incidence was divided by the ratio of different diseases obtained from a larger series of patients. The incidence of all inflammatory joint diseases was 218/100 000/year, 182 in males and 250 in females. The incidence was highest in middle age and lowest in old age. The incidence of ill-defined arthritides was five times that of definite rheumatoid arthritis in the youngest age group but in the oldest their frequencies were equal. In the whole population, the proportion of ill-defined arthritides was 2/5, of definite RA 1/5, of HL-A B27 associated diseases 1/5, and of other diseases 1/5 of the total incidence of inflammatory joint diseases. Because the frequency of HL-A B27 in all patients surveyed was about 40%, only half of the patients with this antigen showed a clinical picture of ankylosing spondylitis, Reiter's disease, or reactive arthritis.

Adolescent↗
PubMed1978

Reversible renal side effects of intra-articular osmic acid injection.

In 101 patients treated for knee joint hydrops with intra-articular osmic acid injection, an increased incidence of proteinuria and microscopic haematuria was noted on the first day after injection. This increase subsided rapidly and had disappeared 3 days after the injection. Three patients showed transient glycosuria. No signs of permanent renal damage appeared in any patient.

Glycosuria, Renal↗