Antibodies to extractable nuclear antigens (ENAS) in systemic lupus erythematosus patients: correlations with clinical manifestations and disease activity

The aim was to explore possible correlations of antibodies to extractable nuclear antigens (ENA) with clinical manifestations and disease activity indices in systemic lupus erythematosus (SLE) patients. A total of 70 consecutive SLE patients (64 females) were included. Disease activity was assessed by SLE activity index (SLEDAI), and British Isles Lupus Assessment Group (BILAG). Anti-Ro/SSA correlated positively with, headache (r=0.24, p=0.04), blurring of vision (r=0.25, p=0.03) and SLEDAI (r=0.25, p=0.04) and negatively with C3 (r=-0.35, p=0.003). Anti-Ro/SSA correlated with anti La/SSB antibodies (r=0.69, p<0.001), but not with anti-DNA, anti-RNP and anti-Sm antibodies. Anti-La/SSB antibodies correlated with headache (r=0.26, p=0.03), SLEDAI (r=0.25, p=0.03) and negatively with C3 (r=-0.34, p=0.004). Anti-La/SSB did not correlate with anti-RNP or anti-Sm antibodies. Anti-Sm antibodies correlated with disease duration (r=0.34, p=0.003), 24 hours urinary proteins (r=0.31, p=0.008), SLEDAI (r=0.31, p=0.009), BILAG renal score (r=0.29, p=0.02) and negatively with age at onset (r=-0.27, p=0.02), WBCs (r=-0.29, p=0.014) and C4 (r=-0.25, p=0.049). In multivariate analyses, anti-Ro/SSA antibodies remained associated with headache, blurring of vision and C3 and anti-La/SSB antibodies remained associated with C3 and with headache. Anti-Sm antibodies were independently associated with disease duration and total SLEDAI scores, while anti-RNP antibodies remained significantly associated with BILAG mucocutaneous scores only. Antibodies to ENAs are associated with clinical aspects of SLE and may play a role in the assessment of disease activity. Insight into these ENAs may lead to new approaches to diagnostic testing, accurate evaluation of disease activity and lead to target approach for SLE.

Determinants of compliance with medication in patients with rheumatoid arthritis: the importance of self-efficacy expectations

In this study we examine which factors are related to compliance with medication in patients suffering from rheumatoid arthritis (RA).

PATIENTS

persons suffering recently developed, active RA, who cooperated in a randomized study on the effect of patient education. We analyzed the relation between adherence to Sulphasalazine therapy and personal factors, environmental influences, demographic factors, disease-related factors, and barriers to compliance. Moreover, a logistical regression analysis was performed on these factors, considering > or = 80% a high compliance, both with compliance as dependent factor. Only self-efficacy correlated with compliance (r = 0.58; P < 0.001). The logistical regression analysis identified self-efficacy as the only factor determining > or = 80% adherence (P = 0.01). Self-efficacy regarding the use of prescribed medication is related to compliance with this treatment. Further study is needed to determine the test characteristics of self-efficacy as a predictor for compliance with medication.

Compliance in rheumatoid arthritis and the role of formal patient education

OBJECTIVE

This study was performed to determine the compliance with the basic treatments for rheumatoid arthritis (RA; medication, physical therapy, and ergonomic measures), to study psychological factors that influence compliance in light of the social learning theory, to learn whether patient education positively influences compliance and health, and to find an approach to patient education that improves compliance.

METHODS

A MEDLINE search of the English language literature was performed.

RESULTS

Few studies have dealt with compliance in RA patients; levels of adherence are generally low. According to the social learning theory, human function involves a continuous interaction between behavior, personal factors, and external environment. Self-efficacy is a personal factor that refers to the belief in one's capabilities and opportunities for being compliant with treatment advice. Patient education may improve ergonomic performance and compliance with physical exercise programs.

CONCLUSIONS

Compliance with medication was infrequently studied. Whether improved compliance leads to better health status could not be determined. Compliance with RA treatments are generally low. Systematic study of the effect of patient education on treatment and health is warranted. Self-efficacy enhancing techniques in patient education may improve compliance.

Lyme arthritis in The Netherlands: a nationwide survey among rheumatologists

A nationwide survey among all 118 Dutch rheumatologists (response rate 85%) yielded 42 patients with Lyme arthritis. The arthritis was nonpersistent in all these patients. A tick bite was reported by 23 of these 42 patients (55%). Erythema migrans was recalled by 19 patients (45%). Cardiac manifestations occurred in 4 patients (9%) and neurologic symptoms in 14 patients (33%). By immunoabsorbent assay or immunofluorescence technique 37 patients (88%) had positive IgG antibodies to Borrelia burgdorferi. The distribution of HLA-DR alleles of 28 of these patients was not different from the healthy population. The response to antibiotic treatment was considered good in 34 patients (81%). The clinical features of the Dutch patients with Lyme arthritis closely resemble the description of the disease reported from the United States.

Changing pattern of drug use in relation to disease duration of rheumatoid arthritis

The prevalent use of antirheumatic drugs in a cohort of 311 middle aged female patients with seropositive and seronegative rheumatoid arthritis (RA) was investigated. Seropositive patients used a greater amount and more aggressive drugs during each decade of disease duration. The overall use of drugs decreased with disease duration, except for a subgroup of seropositive patients with RA who, with increased disease duration, used more aggressive drugs.