Search for: rheumatoid arthritis methotrexate autoimmune disease biomarker gene expression GWAS HLA genes non-HLA genes
| ID | PMID | Title | PublicationDate | abstract |
|---|---|---|---|---|
| 18563514 | A case of autoimmune hepatitis exacerbated by the administration of etanercept in the pati | 2008 Aug | A 50-year-old woman was admitted for active rheumatoid arthritis (RA). She was found to have RA 1 year prior to this admission. Past history was unremarkable and she had no family history for rheumatic diseases. As nonsteroidal anti-inflammatory drug (NSAID) and methotrexate were not effective, etanercept was started (25 mg, twice a week). Mild elevation of alanine transaminase (ALT) and aspartate transaminase (AST) was found as an outpatient, and it was considered to be NSAID-induced liver injury. Two weeks after the first dose of etanercept, she developed progressive elevation of AST and ALT with right upper quadrant tenderness and hepatomegaly. Etanercept was discontinued and liver biopsy was performed, which demonstrated portal-area-dominant lymphoplasmacytic inflammatory cell infiltration. She was diagnosed as autoimmune hepatitis (AIH). Glucocorticoid was started with normalized liver function and stable joint symptoms. AIH was thought to be acutely aggravated by the administration of etanercept. | |
| 19450107 | Productivity cost model of the treatment of rheumatoid arthritis with abatacept. | 2008 | BACKGROUND: The cost of the biological drug abatacept may be partly offset by reductions in the cost of productivity losses due to employee absences and reduced effectiveness at work because of rheumatoid arthritis (RA). METHODS: This was a 1-year productivity cost model based on epidemiologic and economic data. The setting was private industry in the US and the primary outcome measure was the difference in the costs of lost productivity and drug treatment with and without abatacept ('cost difference'). RESULTS: The lost productivity cost of RA for a firm of 10,000 was $1.69 million, largely due to the cost of RA-related absenteeism ($1.55 million) rather than to worker displacement ($0.12 million) or care-giving for spouses with RA ($0.02 million). In the base case analysis (excluding presenteeism), 37% of the acquisition cost of abatacept was offset by reductions in the cost of RA-related productivity losses. In some industry groups (Utilities and Finance), and in models that included presenteeism, reductions in lost productivity costs exceeded the abatacept cost. CONCLUSIONS: Much of the acquisition cost of abatacept may be offset by reductions in the cost of productivity losses due to RA. Abatacept treatment could be cost saving in some industry groups. | |
| 17075090 | Total elbow replacement with the Souter-Strathclyde prosthesis in rheumatoid arthritis. Lo | 2006 Nov | We assessed the long-term results of 58 Souter-Strathclyde total elbow replacements in 49 patients with rheumatoid arthritis. The mean length of follow-up was 9.5 years (0.7 to 16.7). The mean pre-operative Mayo Elbow Performance Score was 30 (15 to 80) and at final follow-up was 82 (60 to 95). A total of 13 elbows (22.4%) were revised, ten (17.2%) for aseptic loosening, one (1.7%) for instability, one (1.7%) for secondary loosening after fracture, and one elbow (1.7%) was removed because of deep infection. The Kaplan-Meier survival rate was 70% and 53% at ten and 16 years, respectively. Failure of the ulnar component was found to be the main problem in relation to the loosening. Anterior transposition of the ulnar nerve had no influence on ulnar nerve paresthaesiae in these patients. | |
| 18006541 | Genetic variations in the serotonin 5-HT2A receptor gene (HTR2A) are associated with rheum | 2008 Aug | OBJECTIVES: To analyse the association between the genetic polymorphisms within the HTR2A gene for the serotonin receptor and rheumatoid arthritis (RA). METHODS: HTR2A gene polymorphisms were analysed in patients with RA and controls from two study populations using PCR based restriction endonuclease mapping or TaqMan allelic discrimination with more than 4000 individuals included in the current study. RESULTS: At the discovery stage we detected significant differences in frequency of rs6313 (T102C polymorphism) between the patients with RA and controls (p = 0.006). Following validation with an extended set of single nucleotide polymorphisms (SNPs) and number of DNA samples, a trend in associations in allelic model for SNPs rs6314, rs1328674, rs6313 and rs6311 (p = 0.006, 0.002, 0.006, 0.009) was seen, although it was lost after correction for multi-comparison for all but rs1328674 (empirical p value = 0.021). However, haplotype frequency analysis based on these four SNPs showed significantly low representation of TCTT combination in patients with RA in comparison with controls (3.6% and 5.6%, p<0.001 on chi(2) test, empirical p = 0.004 after 100 000 permutations) and a significantly higher frequency of CTCC combination in patients with RA in comparison with controls (3.6% and 2.2%, p = 0.002 on chi(2) test, empirical p = 0.022 after 100 000 permutations). CONCLUSIONS: In our study, genetic polymorphisms at the HTR2A gene are associated with susceptibility for RA, suggesting possible links between the serotonergic system and development of the disease. | |
| 18503809 | Responsiveness of the Michigan Hand Outcomes Questionnaire--Dutch language version in pati | 2008 Jun | OBJECTIVE: To investigate the responsiveness of the Michigan Hand Outcomes Questionnaire (MHQ) in patients with rheumatoid arthritis (RA) who were treated in a multidisciplinary hand clinic. DESIGN: Observational study comparing the responsiveness of the MHQ with that of various other outcome measures for hand function. SETTING: Multidisciplinary hand clinic within a tertiary referral center for rheumatologic care. PARTICIPANTS: Twenty-eight patients with problems in hand function due to RA were assessed before and 3 months after conservative and/or surgical treatment. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Assessments included, apart from a previously validated Dutch language version of the MHQ, a visual analog scale for pain, grip strength, the Sequential Occupational Dexterity Assessment, the Arthritis Impact Measurement Scales (AIMS) hand and finger function scale, and each patient's rating of subjective change in hand function. Measurements of responsiveness included the standardized response mean (SRM), effect size, and responsiveness ratio. In addition, the Spearman rank correlations (rho) between the change scores of the MHQ and those of other measures of hand function were calculated. RESULTS: The mean MHQ total score improved significantly between baseline (mean +/- standard deviation, 48.3+/-12.2) and follow-up (mean, 54.7+/-16.9) (change score, -7.2; 95% confidence interval, -11.1 to -3.3). The SRM, effect size, and responsiveness ratio of the MHQ total score were -0.72, -0.52, and -1.99, respectively. Significant associations were found between the changes of the MHQ total score and each patient's rating of subjective change in hand function (rho=.64, P=.001) and the change score of the AIMS hand function scale (rho=-.24, P=.260). CONCLUSIONS: The MHQ proved to be a responsive measure of hand function in patients with RA who were treated in connection with a multidisciplinary hand clinic. | |
| 16956426 | Influence of anti-TNF-alpha infliximab therapy on adhesion molecules associated with ather | 2006 Jul | OBJECTIVE: Chronic systemic inflammation plays a pivotal role in the development of atherosclerosis in rheumatoid arthritis (RA). Soluble (s) adhesion molecules were found significantly increased in RA patients with active disease. Since increased levels of some adhesion molecules were closely linked to the development of endothelial dysfunction and atherosclerosis and administration of anti-TNF-alpha-infliximab resulted in a rapid and dramatic improvement of endothelial function in long-term infliximab treated RA patients, we assessed whether infusion of the chimeric anti-TNF-alpha infliximab might also yield a rapid and favorable effect on serum levels of soluble adhesion molecules in RA patients periodically treated with this drug because of severe disease. METHODS: We recruited patients with RA refractory to conventional therapy seen over a period of 2 months at Hospital Xeral-Calde, Lugo, Spain, who were on periodical treatment with infliximab for at least 14 weeks. Blood samples for determination of sICAM-1, sICAM-3, sVCAM-1, sE-selectin, and sP-selectin levels by ELISA were taken immediately before and after infliximab infusion. RESULTS: Thirty-four RA patients (25 women; mean age: 55.4 years; mean DAS28: 4.27) fulfilled the inclusion criteria. Following infliximab infusion a reduction of the overall mean values of the five adhesion molecules was observed. However, when a Wilcoxon signed-rank test was used, only significant differences for sICAM-3 and sP-selectin were observed. In this regard, sICAM-3 and sP-selectin levels fell in 26 (77%) and 28 (82%) of the 34 patients. CONCLUSION: Our study confirms a rapid and beneficial effect of infliximab infusion on expression of some adhesion molecules in RA patients treated periodically with this anti-TNF-alpha monoclonal antibody because of severe disease. | |
| 16395745 | Human endogenous retrovirus HERV-K(HML-2) Rec expression and transcriptional activities in | 2006 Jan | OBJECTIVE: Despite abundance in the genome, the possible functions of human endogenous retrovirus (HERV) sequences are not well understood. The involvement of HERV in various disease conditions, such as germ cell tumors or autoimmune diseases like rheumatoid arthritis (RA), has been suggested. We investigated expression of HERV-K(HML-2) env-derived transcripts in normal and RA synovia. METHODS: We analyzed HERV-K(HML-2) expression on the mRNA and protein level by RT-PCR analysis and immunofluorescence labeling of the HERV-K(HML-2) Rec (formerly cORF) protein. We examined synovial cell cultures from normal synovia (n = 9), from patients with RA (n = 26), and osteoarthritis (OA, n = 4), and uncultured synovial tissues (RA, n = 12; normal synovia, n = 1). RESULTS: HERV-K Rec protein was expressed in all normal synovial specimens, and in the majority of RA and OA cases. We demonstrate for the first time expression of HERV-K protein in synovial tissue. RT-PCR and sequence analysis of cloned RT-PCR products confirmed expression of spliced HERV-K(HML-2) env transcripts in normal and in arthritic synovia. In addition to rec mRNA, several alternatively spliced transcripts, including np9, were identified. However, different amounts of the various RT-PCR products indicate different expression levels of HERV-K(HML-2) env-derived transcripts in RA compared to normal synovia, with apparently lower expression levels in arthritic synovia. CONCLUSION: These findings imply a physiological role of HERV-K(HML-2) Rec in synovial tissue. Differences in the expression of HERV-K env-derived transcripts in RA synovia may be caused by disease-specific changes in the general expression pattern. | |
| 19015210 | Influence of age on the outcome of antitumour necrosis factor alpha therapy in rheumatoid | 2009 Sep | OBJECTIVE: To investigate the influence of age on the effectiveness and tolerance of antitumour necrosis factor alpha (TNFalpha) therapy in rheumatoid arthritis (RA). METHODS: 730 patients of the Dutch Rheumatoid Arthritis Monitoring (DREAM) register were categorised into three groups according to their age at initiation of anti-TNFalpha therapy (<45, 45-65 and >65 years). Effectiveness of anti-TNFalpha therapy was primarily assessed by longitudinal analysis of the DAS28 during the first 12 months of treatment. RESULTS: Improvement in disease activity and physical functioning was significantly less in elderly patients, correcting for relevant confounders. Elderly patients reached the EULAR categories of good responders and remission less often than younger patients. Drug survival, co-medication use and tolerance were comparable between the three age groups. CONCLUSION: Anti-TNFalpha therapy significantly reduced disease activity in all age groups of patients; however, it appeared less effective in elderly compared with younger RA patients. | |
| 17419316 | [Levels of hormones in plasma and in synovial fluid of knee joint of patients with rheumat | 2007 | BACKGROUND: Dysfunction of endocrine system is very likely one of the important risk factors involved in the pathogenesis of rheumatoid arthritis. The aim of the present study was to investigate the levels of selected hormones in plasma and in synovial fluid of knee joint of patients with rheumatoid arthritis or with osteoarthritis, which could affect the inflammatory processes. METHODS AND RESULTS: Thirty nine patients with rheumatoid arthritis (22 females and 17 males) and 12 patients with osteoarthritis (6 females and 6 males) were investigated. Concentrations of the following hormones were determined in plasma and synovial fluids: cortisol, 17-beta-estradiol, progesterone, dehydroepiandrosterone, aldosterone, testosterone, prolactin, insulin and C-peptide by using radioimmunoassay kits. Increased levels of 17-beta-estradiol and insulin were found in patients with rheumatoid arthritis as compared to those with osteoarthritis. The plasma concentrations of other hormones under study were not significantly different in these groups of patients. Higher levels of 17-beta estradiol, progesterone and aldosterone were noted in inflammatory knee exudate of patients with rheumatoid arthritis. The levels of other hormones in exudates of patients with rheumatoid arthritis and those with osteoarthritis were not significantly different. The ratio of 17-beta estradiol / cortisol, 17-beta estradiol / testosterone and 17-beta estradiol / dehydroepiandrosterone showed increased proportions of estrogens over androgens or glucocorticoids in exudate from patients with rheumatoid arthritis. CONCLUSIONS: These results demonstrated that steroid and peptide hormones are transferred to synovial fluid of knee. The presence of insulin, C-peptide and aldosterone was described for the first time in synovial fluid. In patients with rheumatoid arthritis a predomination of the levels of proinflammatory estrogens over androgens was found in knee exudate. Also the levels of aldosterone and progesterone were elevated in inflammation knee exudate. This suggests that these hormones present in synovial fluid may affect the local rheumatoid inflammatory processes. | |
| 18415765 | Using SELDI-TOF MS to identify serum biomarkers of rheumatoid arthritis. | 2008 Mar | OBJECTIVES: No satisfactory biomarkers are currently available to screen for rheumatoid arthritis (RA). We have developed and evaluated surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS) for detection and analysis of multiple proteins for distinguishing individuals with RA from control individuals. METHODS: A total of 156 serum samples from 90 RA patients, 30 patients with ankylosing spondylitis (AS), and 36 healthy individuals were examined by SELDI technology. Spectral data were analysed by the support vector machine (SVM) approach and potential biomarkers were chosen for system training and were used to construct a diagnostic model. RESULTS: Pattern 1, consisting of four protein peaks with m/z values of 3899, 4594, 7566, and 13,842, distinguished RA from the healthy samples with sensitivity of 90.0% and a specificity of 91.7%. Pattern 2, consisting of m/z peaks 4287 and 6471, distinguished RA from AS with a sensitivity of 86.7% and a specificity of 85.0%. CONCLUSION: The combination of SELDI-TOF MS and SVM could facilitate the discovery of better biomarkers for RA and also provide a useful tool for molecular diagnosis in the future. | |
| 17659759 | Acute lower respiratory tract infections in patients with rheumatoid arthritis. | 2007 Sep | OBJECTIVE: To determine whether drugs used in the treatment of rheumatoid arthritis (RA) contribute to the increased risk of respiratory infection or influence its outcome. METHODS: We identified all episodes of lower respiratory tract infection (LRTI) in our RA population over a 12 month period. A detailed drug history was recorded in each case, together with the clinical outcome. Premorbid illnesses and admission data were collected and analyzed to assess the influence of oral steroids and disease modifying antirheumatic drugs (DMARD) on outcome. RESULTS: The overall annual incidence of LRTI in patients with RA was 2.3% with a mortality rate of 22.5%. Demographic factors predicting LRTI included older age and male sex. Oral steroids and not taking DMARD were also associated with an increased risk of hospital admission with LRTI. Being male and having RA for over 10 years trended to the prediction of death as a result of infection. Taking DMARD was not associated with any adverse outcome. CONCLUSION: Respiratory infection is common in patients with RA and carries a high mortality. Oral steroids predispose to infection, while DMARD do not. Increasing age and male sex also predispose to respiratory tract infection. | |
| 17162380 | Influenza vaccination of patients with systemic lupus erythematosus (SLE) and rheumatoid a | 2006 Jun | The role of influenza vaccination in patients suffering from autoimmune diseases, including systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA), has long been a subject of discussion. The risk of exacerbation of the main disease following vaccination is of particular concern, and needs to be carefully evaluated against the risk of disease flares as a result of infections. Our study included 69 SLE patients and 54 RA patients, all in stable condition. We split the groups into two subgroups each: patients in SLE1 (23 patients) and RA1 (23 patients) received the flu vaccine ("Vaxigrip", Aventis Pasteur) in November 2003. Patients in SLE2 (46 patients) and RA2 (31 patients) were not vaccinated. Throughout the following year, we studied parameters of disease activity and the occurrence of viral respiratory and bacterial infections in our patients. The vaccine was well tolerated in all cases. Vaccinated patients had significantly fewer occurrences of infections. Every viral and bacterial infection resulted in the worsening of the main disease. We believe that influenza vaccine is indicated for SLE and RA patients in stable condition. However, this decision must be made on a patient-by-patient basis. We plan to continue our study with the goal of formulating a better protocol for the clinical practice. | |
| 16947780 | Association of HLA-C3 and smoking with vasculitis in patients with rheumatoid arthritis. | 2006 Sep | OBJECTIVE: To compare HLA-C genotypes and smoking habits in patients with vasculitis or other severe extraarticular manifestations of rheumatoid arthritis (ExRA) with those in RA patients without extraarticular disease. METHODS: Patients were recruited from a large research database of patients with RA at the Mayo Clinic, from 2 Swedish cohorts of prevalent RA cases, and from a regional Swedish early RA cohort. Patients with severe ExRA (n = 159) and control patients with RA but no history of ExRA (non-ExRA controls) (n = 178) were matched for duration of RA and for clinical center. Data on smoking at RA onset, rheumatoid factor (RF) status, and antinuclear antibodies (ANAs) were extracted from the medical records. Polymerase chain reaction-based HLA-C genotyping was performed using a sequence-specific primer kit. RESULTS: The distribution of HLA-C alleles was significantly different between patients with RA-associated vasculitis and non-ExRA controls (P = 0.014). This was mainly due to a positive association of the HLA-C3 allele with vasculitis (allele frequency 0.411 in vasculitis patients versus 0.199 in non-ExRA controls; P < 0.001) and a decreased frequency of HLA-C7 (0.122 and 0.243, respectively; P = 0.018). The association between HLA-C3 and vasculitis was not due to linkage disequilibrium with HLA-DRB1. Smoking (P = 0.001), RF positivity (P < 0.0001), and presence of ANAs (P < 0.0001) were all associated with ExRA. HLA-C3 and smoking were both significant predictors of vasculitis in a multivariate model. CONCLUSION: Vasculitis in RA is associated with HLA-C3. Smoking is an independent predictor of vasculitis and other types of severe ExRA. Our results suggest that these variables are among the genetic and environmental factors that contribute significantly to the pathomechanisms of systemic RA. | |
| 18688916 | Short-term influence of adalimumab on work productivity outcomes in patients with rheumato | 2008 Sep | OBJECTIVE: To evaluate the shortterm effect of adalimumab on work productivity in patients with moderate to severe active rheumatoid arthritis (RA). METHODS: In a substudy of the Canadian Adalimumab Clinical Trial (CanAct), clinical, health status, and productivity outcomes were measured at baseline and 12 weeks. Patients were classified as responders and nonresponders by the 20% American College of Rheumatology (ACR20) improvement criterion and the minimum clinically important difference (MCID) of the Health Assessment Questionnaire (HAQ) score (0.22), respectively. The Health and Labour Questionnaire (HLQ) was used to measure productivity outcomes and costs. RESULTS: Included in the analysis were 389 patients completing both baseline and 12-week HLQ questionnaire. Absenteeism (a decrease of 0.5 workdays per 2 weeks) and unpaid work productivity (3.5 fewer hours unpaid help per 2 weeks) were improved significantly after 12 weeks. Improvements in productivity outcomes were associated with clinical response. Bootstrapping results suggest that responders achieved statistically significant improvement in presenteeism (ACR20) and unpaid work productivity (ACR20 and HAQ) versus nonresponders. The costs saved by responders were up to $155.04 per 2 weeks more than those by nonresponders. CONCLUSION: The costs of adalimumab were partially offset, even in the short term, by cost savings induced by clinical response among Canadian patients with moderate to severe RA. These findings complement results of other study analyses that demonstrate early and sustained benefits of adalimumab. | |
| 18092262 | Intensifying treatment of rheumatoid arthritis with combinations of traditional disease-mo | 2007 Nov | OBJECTIVE: To analyse how treatment of patients with rheumatoid arthritis (RA) influenced the duration of the disease before the first large joint surgery, arthrodesis or arthroplasty, in two patient cohorts 10 years apart. METHODS: Data on patients with RA having an arthrodesis or arthroplasty of a large joint from 1990 to 1992 and from 2000 to 2002 and the type of medication used among all patients with RA in 1988-2002 were extracted from the data set of Kuopio University Hospital. RESULTS: The median duration of the disease before the decision of arthrodesis was 6.0 (range 1-25) years in 1990-92 and 9.0 (1-31) years (p = 0.307) in 2000-02, and of arthroplasty 10.5 (0-27) and 12.5 (0-59) years (p = 0.820), respectively. A significant shift from only symptomatic treatment or one disease-modifying anti-rheumatic drug (DMARD) to the more common use of immunosuppressants and/or combinations of at least two DMARDs occurred between 1992 and 2002. CONCLUSIONS: Treatment of RA at diagnosis and during the first years after diagnosis was traditional. Intensifying treatment later in the disease course did not reduce the need for large joint surgery as it occurred in the same time range in both cohorts. | |
| 16755651 | SUMO4 and MAP3K7IP2 single nucleotide polymorphisms and susceptibility to rheumatoid arthr | 2006 Jun | OBJECTIVE: To explore the role of single nuclear polymorphisms (SNP) in 2 candidate genes, SUMO4 and MAP3K7IP2, in susceptibility to rheumatoid arthritis (RA). METHODS: Two cohorts from different Spanish towns totalling 635 patients with RA and 826 controls were studied. Six SNP were genotyped by matrix assisted laser desorption-ionization time-of-flight (MALDI-TOF) with the MassARRAY SNP genotyping system. RESULTS: We found no association with susceptibility to RA for any of the SNP including a previously described functional variant in the SUMO4 gene (163A-->G). RA susceptibility was independent of the haplotypes defined by the 6 SNP and there was also no association with clinical features of RA. Conclusion. SUMO4 and MAP3K7IP2 SNP did not significantly influence predisposition to and features of RA, in contrast to previous genetic and functional evidence that suggested their involvement. | |
| 16920747 | MHC2TA promoter polymorphism (-168*G/A, rs3087456) is not associated with susceptibility t | 2007 Mar | OBJECTIVE: To investigate the association of a single-nucleotide polymorphism (SNP) in the promoter region of MHC2TA gene (-168*G/A, rs3087456), which has previously been described in a Swedish rheumatoid arthritis (RA) cohort, in British Caucasian RA patients. METHODS: We genotyped 733 RA patients and 613 healthy controls for MHC2TA -168*G/A SNP by amplification-refractory mutation system (ARMS). Data were analysed using SPSS version 13.0 software and the chi-square test was applied where appropriate. RESULTS: The MHC2TA -168*G/A SNP was not associated with increased susceptibility to RA in our patients. Stratifying the patients according to the presence or absence of rheumatoid factor (RF) showed the SNP to be more common in RF negative patients, but this did not reach statistical significance. CONCLUSION: We did not confirm the previously reported association of this MHC2TA polymorphism with RA in our UK population despite its ethnic similarities with the Swedish population in which it was first described. | |
| 17025376 | Adalimumab: a review of its use in adult patients with rheumatoid arthritis. | 2006 | Adalimumab (Humira) is a recombinant, fully human anti-tumor necrosis factor (TNF) monoclonal antibody approved in the US and Europe for the treatment of adult patients with moderate to severe, active rheumatoid arthritis (RA). In combination with methotrexate or standard antirheumatic therapy or as monotherapy, adalimumab effectively reduced signs and symptoms of RA, induced remission, improved physical function and inhibited the progression of structural damage in several randomized, double-blind, placebo-controlled phase III trials. The drug was generally well tolerated, with most adverse events being mild to moderate, and the serious adverse events profile being similar to that generally seen in patients with RA not receiving anti-TNF agents. Adalimumab was at least as cost effective as other anti-TNF agents used in the therapy of RA, and provided significant improvements in patients' health-related quality of life. Overall, adalimumab in combination with methotrexate or standard antirheumatic therapy is valuable as a first-line therapeutic option in patients with early, aggressive RA, and a second-line therapeutic option in patients with long-standing, moderate to severe RA. For the latter indication, adalimumab may also be used as monotherapy. | |
| 16040164 | [Atherosclerosis and rheumatoid arthritis]. | 2006 Feb | AIMS: To identify studies which have shown that rheumatoid arthritis (RA) is associated with an increase in cardiovascular morbidity and mortality. To identify the different factors that may be involved. To consider what management would decrease the cardiovascular morbidity and mortality of RA. RESULTS: Epidemiological studies have shown that the risk of a cardiovascular event is increased twofold in RA patients irrespective of the traditional cardiovascular risk factors. Non-invasive methods have shown that RA patients have endothelial dysfunction, decreased arterial compliance and increased intima-media thickers, predictive factors for cardiovascular events in comparison to controls after controlling for traditional cardiovascular risk factors. The increased cardiovascular risk is directly mediated by inflammatory syndrome, which also indirectly increases the risk by inducing dyslipidemia and insulin resistance. Treatments also have a hamful effect, whether it be corticosteroid therapy, non-steroidal anti-inflammatory drugs (NSAIDs), or methotrexate (MTX), which leads to hyperhromocysteinemia. CONCLUSION: It should be possible to decrease cardiovascular morbidity and mortality by a strict control of the disease's activity. We should also take measures to combat other cardiovascular risk factors: as low a dose as possible for corticosteroid therapy, limited prescription of NSAIDs, systematic supplementation of MTX with folic acid encouragement of smoking cessation, regular lipid tests and prescription of statins treatment for hyperlipemia in accordance with current recommendations. | |
| 17543153 | The relationship of disease duration to foot function, pain and disability in rheumatoid a | 2007 Mar | OBJECTIVE: To assess the relationship between disease duration and foot function (expressed as pressure and gait parameters), foot pain and disability, in patients with foot complaints secondary to rheumatoid arthritis (RA). METHODS: Sixty-two patients with RA-related foot complaints were included. Disease duration was defined as the time since RA was diagnosed. A pressure platform was used to measure both pressure parameters (i.e. pressure-time integrals and peak pressures in the forefoot) and gait parameters (i.e. total loading time and loading time in different foot regions). In addition, measurements of foot pain, disability (i.e. walking time and self reported disability), forefoot joint damage and disease activity were obtained. Data were analysed using partial correlations (Spearman), correcting for age. RESULTS: Disease duration was significantly correlated with the maximum pressure-time integral (PTI) measured under the forefoot (r = 0.330, p = 0.01). Disease duration was also significantly correlated with gait parameters, i.e. total loading time (r = 0.265, p = 0.04), duration of heel loading and duration of toe loading (r = 0.326, p = 0.01 and r = -0.288, p = 0.03 respectively), and walking time (r = 0.297, p = 0.02). Disease duration did not correlate with self-reported foot pain or disability. CONCLUSION: In patients with RA-related foot complaints, longer disease duration is associated with impaired foot function and reduced walking speed. These findings are interpreted as an alteration in pressure distribution and gait pattern during the course of disease, with a shift from a heel-to-toe roll-over process to a more shuffling gait. |
