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1.
ACR Open Rheumatol ; 6(5): 312-320, 2024 May.
Article in English | MEDLINE | ID: mdl-38456334

ABSTRACT

OBJECTIVE: We performed a scoping review of the relevant literature on home-based telehealth in rheumatology to understand its appropriate application in rheumatology practice. METHODS: We searched the Cochrane Library, PubMed, Web of Science, and scientific meeting abstracts to identify articles that specifically addressed telehealth suitability, barriers to telehealth, patient-reported outcomes (PROs) collected in telehealth settings, and telehealth satisfaction. From the initial search of 4,882 studies, 23 reports were included. In addition, 10 abstracts were also eligible for analysis, resulting in a total of 33 articles: 2 randomized clinical trials, 9 prospective cohort studies, and 22 retrospective studies. RESULTS: We found that triage appointments or predictive models could be helpful in selecting patients for telehealth and that telehealth interventions were appropriate for follow-up of patients with systemic lupus erythematosus and inflammatory arthritis, but that conducting new patient visits over telehealth was not ideal. Barriers to telehealth include patient factors (age, technology access) and need for physician/process factors (eg, physical examinations). PROs collected in regular practice can be incorporated into telehealth. Several small, single-center studies suggest that telehealth does not lead to negative outcomes compared with in-person visits, and overall, patients report high patient satisfaction with telehealth. In several scenarios, home-based telehealth was equivalent to in-person visits with regard to patient outcomes and satisfaction. CONCLUSION: The widespread potential of telehealth to manage and deliver care for people with rheumatic disease is significant. As such, further research in the form of randomized controlled trials can help contribute to growing evidence that shapes telehealth implementation for patients with rheumatic diseases.

2.
Rheum Dis Clin North Am ; 48(2): 537-547, 2022 05.
Article in English | MEDLINE | ID: mdl-35400377

ABSTRACT

Rheumatoid arthritis (RA) is a chronic, progressive inflammatory disorder that manifests as a symmetric polyarthritis of small and large joints that may lead to joint and periarticular structural damage and the consequences of systemic inflammation. This overview of early RA examines the unmet needs and challenges in RA, how to best diagnose RA, and pitfalls in early diagnosis and treatment. The rules for referral to a rheumatologist are reviewed. Primary care physicians are at the front line of early diagnosis and need to start disease-modifying therapy as soon as a diagnosis of RA is established.


Subject(s)
Antirheumatic Agents , Arthritis, Rheumatoid , Antirheumatic Agents/therapeutic use , Arthritis, Rheumatoid/diagnosis , Arthritis, Rheumatoid/drug therapy , Early Diagnosis , Humans , Inflammation , Referral and Consultation , Rheumatologists
4.
Med Clin North Am ; 105(2): 355-365, 2021 Mar.
Article in English | MEDLINE | ID: mdl-33589108

ABSTRACT

Rheumatoid arthritis (RA) is a chronic, progressive inflammatory disorder that manifests as a symmetric polyarthritis of small and large joints that may lead to joint and periarticular structural damage and the consequences of systemic inflammation. This overview of early RA examines the unmet needs and challenges in RA, how to best diagnose RA, and pitfalls in early diagnosis and treatment. The rules for referral to a rheumatologist are reviewed. Primary care physicians are at the front line of early diagnosis and need to start disease-modifying therapy as soon as a diagnosis of RA is established.


Subject(s)
Arthritis, Rheumatoid , Early Medical Intervention/methods , Arthritis, Rheumatoid/diagnosis , Arthritis, Rheumatoid/therapy , Early Diagnosis , Humans , Primary Health Care/methods
5.
Clin Rheumatol ; 40(3): 949-954, 2021 Mar.
Article in English | MEDLINE | ID: mdl-32797363

ABSTRACT

OBJECTIVES: This study aims to assess rheumatologists' perceptions, utilization patterns, and attitudes towards the modified New York (mNY) criteria for ankylosing spondylitis (AS) and Assessment of SpondyloArthritis International Society (ASAS) criteria for axial spondyloarthritis (axSpA). METHODS: Members of the national rheumatology societies in five countries (United States of America (USA), Canada, India, Turkey, and Brazil) were invited to participate in a survey containing questions regarding rheumatologists' familiarity, and use of AS and axSpA classification criteria in daily practice, perceived specificity of spondyloarthritis features in making the diagnosis, patterns of imaging tests performed in daily practice, and their opinion about the need for modification of current classification criteria. The responses were analyzed by gender, age, years in practice, as well as by country of practice. Descriptive statistics, t test, and chi-square test were used for comparison of groups. RESULTS: Approximately 6% rheumatologists (478 out of 8021 professional association members) from five countries completed the survey. The country-specific response rates were Brazil 4%, USA 4.3%, India 11%, Canada 14%, and Turkey 29%, though the overall contributions from individual countries were USA 47%, India 14.9%, Brazil 13.8%, Turkey 12.8%, and Canada 8.8%. The mean age of respondents was 50 years (± 11.8), 31% were females and 90% spent majority (> 75%) of their time in clinical practice. The mNY and ASAS criteria were regularly used in clinical practice by 44 and 66% of responders, respectively. Those reporting "always" using ASAS criteria were more likely to be women (p = 0.006), and within 5 years of completing rheumatology training. Vast majority (74%) regarded Inflammatory Back Pain (IBP) as a specific feature for axSpA. Majority (50 and 60%, respectively) regarded uveitis and dactylitis as "very specific" features helping them make the diagnosis of axSpA, whereas heel enthesitis, peripheral inflammatory arthritis, and response to NSAIDs were considered "somewhat specific" by 50% of the responders. Less than half (47%) of the responders used the mNY grading for X-ray of SI joints. In the case of normal X-ray of SI joint, the use of MRI was more frequent than CT scan (83.6 vs. 10.9%) in assessing for sacroiliitis. If sacroiliitis was not seen on X-rays, the likelihood of ordering MRI was significantly higher among rheumatologists completing training within < 15 years versus > 25 years prior (90 vs. 75%, p = 0.007). Overall, 70% thought that ASAS criteria were adequately specific for clinical trials. However, 42% respondents still felt a need to modify ASAS classification criteria for axSpA. Also, 46% respondents felt that mNY criteria should be modified. CONCLUSIONS: In the absence of diagnostic criteria, majority of rheumatologists are using the classification criteria for diagnosis of axSpA. Though axSpA classification criteria are perceived to be specific for clinical trials, 40% rheumatologists feel the need to modify these criteria. Key Points • This study informs how rheumatologists in five countries spread over four different continents diagnose axSpA in clinical practice. • Since majority rheumatologists among survey respondents across the countries use ASAS criteria for diagnosis of axSpA, more specific criteria may be required to avoid overdiagnosis. • MRI is commonly used to rule out sacroiliitis in case of normal X-ray of sacroiliac joints.


Subject(s)
Spondylarthritis , Spondylitis, Ankylosing , Attitude , Brazil , Canada , Cohort Studies , Female , Humans , India , Magnetic Resonance Imaging , Male , Middle Aged , New York , Rheumatologists , Spondylarthritis/diagnosis , Spondylitis, Ankylosing/diagnosis , Turkey
6.
Arthritis rheumatol. (Malden. Online) ; 72(4): [461-488], Apr. 4, 2020.
Article in English | BIGG - GRADE guidelines | ID: biblio-1117247

ABSTRACT

To develop an evidence-based guideline on contraception, assisted reproductive technologies (ART), fertility preservation with gonadotoxic therapy, use of menopausal hormone replacement therapy (HRT), pregnancyassessment and management, and medication use in patients with rheumatic and musculoskeletal disease (RMD). We conducted a systematic review of evidence relating to contraception, ART, fertility preservation,HRT, pregnancy and lactation, and medication use in RMD populations, using Grading of Recommendations Assessment, Development and Evaluation methodology to rate the quality of evidence and a group consensus process todetermine final recommendations and grade their strength (conditional or strong). Good practice statements wereagreed upon when indirect evidence was sufficiently compelling that a formal vote was unnecessary.. This American College of Rheumatology guideline provides 12 ungraded good practice statements and131 graded recommendations for reproductive health care in RMD patients. These recommendations are intended toguide care for all patients with RMD, except where indicated as being specific for patients with systemic lupus erythematosus, those positive for antiphospholipid antibody, and/or those positive for anti-Ro/SSA and/or anti-La/SSBantibodies. Recommendations and good practice statements support several guiding principles: use of safe andeffective contraception to prevent unplanned pregnancy, pre-pregnancy counseling to encourage conception during periods of disease quiescence and while receiving pregnancy-compatible medications, and ongoing physicianpatient discussion with obstetrics/gynecology collaboration for all reproductive health issues, given the overall low level of available evidence that relates specifically to RMD. Guidelines and recommendations developed and/or endorsed by the American College of Rheumatology (ACR) are intended to provide guidance for patterns of practice and not to dictate the care of a particular patient. The ACR considers adherence to the recommendations within this guideline to be voluntary, with the ultimate determination regarding their application to be made by the clinician in light of each patient's individual circumstances. Guidelines and recommendations are intended to promote beneficial or desirable outcomes, but cannot guarantee any specific outcome. Guidelines and recommendations developed and endorsed by the ACR are subject to periodic revision, as warranted by the evolution of medical knowledge, technology, and practice. ACR recommendations are not intended to dictate payment or insurance decisions. These recommendations cannot adequately convey all uncertainties and nuances of patient care. The American College of Rheumatology is an independent, professional, medical and scientific society that does not guarantee, warrant, or endorse any commercial product or service. This guideline provides evidence-based recommendations developed and reviewed by panels of experts and RMD patients. Many recommendations are conditional, reflecting a lack of data or low-level data. We intend that this guideline be used to inform a shared decision-making process between patients and their physicians on issues related to reproductive health that incorporates patients' values, preferences, and comorbidities.


Subject(s)
Humans , Rheumatic Diseases/prevention & control , Rheumatic Diseases/therapy , Musculoskeletal Diseases/prevention & control , Musculoskeletal Diseases/therapy , Reproductive Health
7.
Arthritis Care Res (Hoboken) ; 72(4): 461-488, 2020 04.
Article in English | MEDLINE | ID: mdl-32090466

ABSTRACT

OBJECTIVE: To develop an evidence-based guideline on contraception, assisted reproductive technologies (ART), fertility preservation with gonadotoxic therapy, use of menopausal hormone replacement therapy (HRT), pregnancy assessment and management, and medication use in patients with rheumatic and musculoskeletal disease (RMD). METHODS: We conducted a systematic review of evidence relating to contraception, ART, fertility preservation, HRT, pregnancy and lactation, and medication use in RMD populations, using Grading of Recommendations Assessment, Development and Evaluation methodology to rate the quality of evidence and a group consensus process to determine final recommendations and grade their strength (conditional or strong). Good practice statements were agreed upon when indirect evidence was sufficiently compelling that a formal vote was unnecessary. RESULTS: This American College of Rheumatology guideline provides 12 ungraded good practice statements and 131 graded recommendations for reproductive health care in RMD patients. These recommendations are intended to guide care for all patients with RMD, except where indicated as being specific for patients with systemic lupus erythematosus, those positive for antiphospholipid antibody, and/or those positive for anti-Ro/SSA and/or anti-La/SSB antibodies. Recommendations and good practice statements support several guiding principles: use of safe and effective contraception to prevent unplanned pregnancy, pre-pregnancy counseling to encourage conception during periods of disease quiescence and while receiving pregnancy-compatible medications, and ongoing physician-patient discussion with obstetrics/gynecology collaboration for all reproductive health issues, given the overall low level of available evidence that relates specifically to RMD. CONCLUSION: This guideline provides evidence-based recommendations developed and reviewed by panels of experts and RMD patients. Many recommendations are conditional, reflecting a lack of data or low-level data. We intend that this guideline be used to inform a shared decision-making process between patients and their physicians on issues related to reproductive health that incorporates patients' values, preferences, and comorbidities.


Subject(s)
Contraception/methods , Fertility Preservation/methods , Musculoskeletal Diseases/physiopathology , Reproductive Health , Rheumatic Diseases/physiopathology , Rheumatology/standards , Antirheumatic Agents/therapeutic use , Female , Humans , Male , Musculoskeletal Diseases/drug therapy , Pregnancy , Rheumatic Diseases/drug therapy , United States
8.
Arthritis Rheumatol ; 72(4): 529-556, 2020 04.
Article in English | MEDLINE | ID: mdl-32090480

ABSTRACT

OBJECTIVE: To develop an evidence-based guideline on contraception, assisted reproductive technologies (ART), fertility preservation with gonadotoxic therapy, use of menopausal hormone replacement therapy (HRT), pregnancy assessment and management, and medication use in patients with rheumatic and musculoskeletal disease (RMD). METHODS: We conducted a systematic review of evidence relating to contraception, ART, fertility preservation, HRT, pregnancy and lactation, and medication use in RMD populations, using Grading of Recommendations Assessment, Development and Evaluation methodology to rate the quality of evidence and a group consensus process to determine final recommendations and grade their strength (conditional or strong). Good practice statements were agreed upon when indirect evidence was sufficiently compelling that a formal vote was unnecessary. RESULTS: This American College of Rheumatology guideline provides 12 ungraded good practice statements and 131 graded recommendations for reproductive health care in RMD patients. These recommendations are intended to guide care for all patients with RMD, except where indicated as being specific for patients with systemic lupus erythematosus, those positive for antiphospholipid antibody, and/or those positive for anti-Ro/SSA and/or anti-La/SSB antibodies. Recommendations and good practice statements support several guiding principles: use of safe and effective contraception to prevent unplanned pregnancy, pre-pregnancy counseling to encourage conception during periods of disease quiescence and while receiving pregnancy-compatible medications, and ongoing physician-patient discussion with obstetrics/gynecology collaboration for all reproductive health issues, given the overall low level of available evidence that relates specifically to RMD. CONCLUSION: This guideline provides evidence-based recommendations developed and reviewed by panels of experts and RMD patients. Many recommendations are conditional, reflecting a lack of data or low-level data. We intend that this guideline be used to inform a shared decision-making process between patients and their physicians on issues related to reproductive health that incorporates patients' values, preferences, and comorbidities.


Subject(s)
Contraception , Fertility Preservation , Musculoskeletal Diseases/drug therapy , Rheumatic Diseases/drug therapy , Disease Management , Humans , Reproductive Health , Rheumatology/standards
9.
Rheumatology (Oxford) ; 59(7): 1505-1513, 2020 07 01.
Article in English | MEDLINE | ID: mdl-31628482

ABSTRACT

OBJECTIVES: 3-hydroxy-3-methylglutaryl coenzyme-A (HMG Co-A) reductase inhibitors (statins) are standard treatment for hyperlipidaemia. In addition to lipid-lowering abilities, statins exhibit multiple anti-inflammatory effects. The objectives of this study were to determine whether treatment of patients with RA with lovastatin decreased CRP or reduced disease activity. METHODS: We conducted a randomized double-blind placebo-controlled 12 week trial of lovastatin vs placebo in 64 RA patients with mild clinical disease activity but an elevated CRP. The primary efficacy end point was the reduction in mean log CRP. Secondary end points included disease activity, RF and anti-CCP antibody titres. Mechanistic end points included levels of serum cytokines. Safety was assessed; hepatic and muscle toxicities were of particular interest. RESULTS: Baseline features were similar between groups. No significant difference in mean log CRP reduction between the two groups was observed, and disease activity did not change from baseline in either treatment group. Mechanistic analyses did not reveal significant changes in any biomarkers. A post hoc analysis of subjects not using biologic therapy demonstrated a significantly greater proportion achieving ⩾20% reduction in CRP from baseline in the lovastatin group compared with placebo (P-value = 0.007). No difference was observed in subjects receiving biologics. Lovastatin was well tolerated with no serious safety concerns. CONCLUSION: This study showed no anti-inflammatory or clinical effects on RA disease activity after 12 weeks of treatment with lovastatin. Lovastatin had a modest effect on CRP in subjects not using biologics, suggesting statins may be anti-inflammatory in selected patients. TRIAL REGISTRATION: ClinicalTrials.gov, http://clinicaltrials.gov, NCT00302952.


Subject(s)
Arthritis, Rheumatoid/drug therapy , C-Reactive Protein/immunology , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Lovastatin/therapeutic use , Adult , Anti-Citrullinated Protein Antibodies/immunology , Arthritis, Rheumatoid/immunology , Arthritis, Rheumatoid/physiopathology , Double-Blind Method , Female , Humans , Male , Middle Aged , Rheumatoid Factor/immunology , Severity of Illness Index , Treatment Outcome
10.
J Rheumatol ; 47(1): 149-154, 2020 01.
Article in English | MEDLINE | ID: mdl-30936282

ABSTRACT

OBJECTIVE: The Pregnancy and Lactation Autoimmune Network (PLAN) registry was established to evaluate the concerns of women with autoimmune or inflammatory rheumatic diseases (AIRD) pertaining to pregnancy and lactation. METHODS: The registry was started as a survey of patients with AIRD at a single rheumatology specialty center in November 2016 and included questions regarding fertility, pregnancy, miscarriages, and lactation before and after diagnosis. RESULTS: The study included 154 subjects from the PLAN registry. More than half (52%) of respondents indicated that their diagnosis negatively changed their views on pregnancy and nearly a third (30%) decided not to have children after AIRD diagnosis. Most (66%) women were concerned that medication use during the childbearing process would affect the baby. One-third (34%) indicated their views on breastfeeding negatively changed as a result of their disease diagnosis. The rates and duration of breastfeeding did not differ significantly for babies born before or after the mothers' diagnosis (p = 0.50 and p = 0.21, respectively). Eighteen women in our study avoided breastfeeding or stopped breastfeeding earlier than planned to start a medication (including etanercept, adalimumab, hydroxychloroquine, and certolizumab) they believed to be contraindicated during lactation. The PLAN registry included 19 women who breastfed 22 babies while being exposed to a disease-modifying antirheumatic drug or biologic. None of these 19 women reported a delay in their children's developmental milestones or higher infection rates. CONCLUSION: This study highlights an unmet need in patients with AIRD of childbearing potential for data and education regarding pregnancy and lactation.


Subject(s)
Autoimmune Diseases/psychology , Breast Feeding/psychology , Lactation/psychology , Perception , Registries , Rheumatic Diseases/psychology , Adolescent , Adult , Antirheumatic Agents/adverse effects , Autoimmune Diseases/diagnosis , Autoimmune Diseases/drug therapy , Biological Products/adverse effects , Child Development/drug effects , Female , Health Surveys , Humans , Infant , Infant, Newborn , Middle Aged , Milk, Human , Pregnancy , Retrospective Studies , Rheumatic Diseases/diagnosis , Rheumatic Diseases/drug therapy , Treatment Outcome , Young Adult
11.
Arthritis Rheumatol ; 70(9): 1399-1407, 2018 09.
Article in English | MEDLINE | ID: mdl-29623679

ABSTRACT

OBJECTIVE: Anti-tumor necrosis factor (anti-TNF) medications are effective in controlling chronic inflammatory diseases, but information about their use and safety in pregnancy is limited. Consequently, anti-TNF agents are often discontinued early in gestation. Certolizumab pegol (CZP), a PEGylated, Fc-free anti-TNF agent approved for the treatment of rheumatic diseases and/or Crohn's disease, has minimal to no active placental transfer. This analysis was undertaken to evaluate pregnancy outcomes in women receiving CZP, especially those exposed during early pregnancy. METHODS: Prospective and retrospective data on maternal CZP exposure were extracted from the UCB Pharma safety database through March 6, 2017. Analysis was limited to prospective reports to avoid potential bias associated with retrospective submissions. The numbers of live births, miscarriages, elective abortions, stillbirths, and major congenital malformations were ascertained. RESULTS: Of 1,137 prospectively reported pregnancies with maternal exposure to CZP, 528 (including 10 twin pregnancies) had 538 known outcomes: 459 live births (85.3%), 47 miscarriages (8.7%), 27 elective abortions (5.0%), and 5 stillbirths (0.9%). There were 8 major congenital malformations (1.7%) among the 459 infants. First trimester exposure occurred in 367 (81.2%) of 452 pregnancies resulting in 459 live births. Exposure during all 3 trimesters occurred in 201 (44.5%) of 452 pregnancies. CONCLUSION: This analysis represents the largest cohort of pregnant women exposed to an anti-TNF agent for management of chronic inflammatory diseases. Analysis of pregnancy outcomes does not indicate a teratogenic effect of CZP, compared to the general population, nor an increased risk of fetal death. The data are reassuring for women of childbearing age considering treatment with CZP.


Subject(s)
Antirheumatic Agents/adverse effects , Certolizumab Pegol/adverse effects , Maternal Exposure/adverse effects , Pregnancy Complications/drug therapy , Rheumatic Diseases/drug therapy , Abnormalities, Drug-Induced/epidemiology , Abnormalities, Drug-Induced/etiology , Adult , Databases, Factual , Female , Humans , Infant, Newborn , Pharmacovigilance , Pregnancy , Pregnancy Outcome , Prospective Studies , Retrospective Studies , Teratogenesis , Young Adult
12.
J Rheumatol ; 45(1): 40-44, 2018 01.
Article in English | MEDLINE | ID: mdl-29142029

ABSTRACT

OBJECTIVE: The aim of our study was to examine why real-world practices and attitudes regarding quantitative measurements of rheumatoid arthritis (RA) have received limited attention. METHODS: An e-mail survey asked US rheumatologists to self-report on their use of quantitative measurements (metric). RESULTS: Among 439 respondents, metric rheumatologists (58%) were more likely to be in group practice and to use tumor necrosis factor inhibitors. The quantitative tools most commonly used were the Health Assessment Questionnaire (35.5%) and the Routine Assessment of Patient Index Data 3 (27.1%). Reasons for not measuring included time needed and electronic availability. Based on simulated case scenarios, providing more quantitative information increased the likelihood that a patient would change to a different disease-modifying antirheumatic drug or biologic. CONCLUSION: Routine use of quantitative measurement for patients in the United States with RA is increasing over time but remains low.


Subject(s)
Arthritis, Rheumatoid/diagnosis , Attitude of Health Personnel , Disease Management , Health Knowledge, Attitudes, Practice , Quality of Health Care , Rheumatologists/psychology , Aged , Database Management Systems , Female , Group Practice , Humans , Male , Middle Aged , Multivariate Analysis , Practice Patterns, Physicians' , Self Report , Severity of Illness Index , United States
14.
J Rheumatol ; 42(12): 2270-8, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26523031

ABSTRACT

OBJECTIVE: To provide information on pregnancy outcomes in women receiving certolizumab pegol (CZP). METHODS: The UCB Pharma safety database was searched for pregnancies through to September 1, 2014. Reports for maternal and paternal CZP exposure were included and outcomes examined, and data on CZP exposure, pregnancy, comorbidities, and infant events were extracted by 2 independent reviewers. Concomitant medications and disease activity were reviewed for clinical trial patients. RESULTS: Of 625 reported pregnancies, 372 (59.5%) had known outcomes. Paternal exposure pregnancies (n = 33) reported 27 live births, 4 miscarriages, 1 induced abortion, and 1 stillbirth. Maternal exposure pregnancies (n = 339) reported 254 live births, 52 miscarriages, 32 induced abortions, and 1 stillbirth. Almost all reported pregnancies had exposure to CZP in the first trimester, when organogenesis takes place, and a third of them continued the drug into the second and/or third trimesters. The most frequent indications for maternal CZP use were Crohn disease (192/339) and rheumatic diseases (118/339). Twelve cases of congenital malformation and a single neonatal death were reported. CONCLUSION: Analysis of pregnancy outcomes after exposure to CZP supports previous reports, suggesting a lack of harmful effect of maternal CZP exposure on pregnancy outcomes. However, additional data from a larger number of outcomes after exposure and studies including an unexposed comparison group are required to fully evaluate CZP safety and tolerability in pregnancy.


Subject(s)
Arthritis, Rheumatoid/drug therapy , Certolizumab Pegol/adverse effects , Pregnancy Complications/chemically induced , Pregnancy Outcome , Abortion, Spontaneous/chemically induced , Abortion, Spontaneous/epidemiology , Adult , Antirheumatic Agents/adverse effects , Antirheumatic Agents/therapeutic use , Arthritis, Rheumatoid/diagnosis , Certolizumab Pegol/therapeutic use , Congenital Abnormalities/epidemiology , Congenital Abnormalities/etiology , Databases, Factual , Female , Gestational Age , Humans , Infant, Newborn , Pregnancy , Pregnancy Complications/epidemiology , Pregnancy Complications/physiopathology , Pregnancy, High-Risk , Reference Values , Retrospective Studies , Risk Assessment
18.
J Exp Med ; 210(13): 2903-19, 2013 Dec 16.
Article in English | MEDLINE | ID: mdl-24277153

ABSTRACT

Studies on the role of the RNA receptor TLR8 in inflammation have been limited by its different function in human versus rodents. We have generated multiple lines of transgenic mice expressing different levels of human TLR8. The high copy number chimeras were unable to pass germline; developed severe inflammation targeting the pancreas, salivary glands, and joints; and the severity of the specific phenotypes closely correlated with the huTLR8 expression levels. Mice with relatively low expression levels survived and bred successfully but had increased susceptibility to collagen-induced arthritis, and the levels of huTLR8 correlated with proinflammatory cytokines in the joints of the animals. At the cellular level, huTLR8 signaling exerted a DC-intrinsic effect leading to up-regulation of co-stimulatory molecules and subsequent T cell activation. A pathogenic role for TLR8 in human diseases was suggested by its increased expression in patients with systemic arthritis and the correlation of TLR8 expression with the elevation of IL-1ß levels and disease status. We found that the consequence of self-recognition via TLR8 results in a constellation of diseases, strikingly distinct from those related to TLR7 signaling, and points to specific inflammatory diseases that may benefit from inhibition of TLR8 in humans.


Subject(s)
Arthritis, Juvenile/metabolism , Autoimmunity , Inflammation/pathology , RNA/chemistry , Toll-Like Receptor 8/metabolism , Animals , Arthritis, Experimental/metabolism , Arthritis, Experimental/physiopathology , Arthritis, Juvenile/physiopathology , Child , Collagen/chemistry , Female , Gene Expression Profiling , Humans , Male , Mice , Mice, Inbred C57BL , Mice, Transgenic , Randomized Controlled Trials as Topic , Signal Transduction , T-Lymphocytes/immunology , Toll-Like Receptor 7/metabolism , Toll-Like Receptor 8/genetics , Transgenes
19.
Dermatol Clin ; 31(3): 471-80, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23827249

ABSTRACT

Autoinflammatory syndromes comprise a diagnostically challenging group of systemic inflammatory disorders uniquely related by (1) dysregulation of innate immunity, (2) inflammasome activation, (3) dramatic clinical features (high fevers, neutrophilic rashes, and bone or synovial involvement), (4) impressive acute phase responses, and (5) effective treatment with cytokine inhibitors. This review details some of the more common autoinflammatory disorders, their distinguishing features and dermatologic manifestations, and how an accurate diagnosis can be established in patients presenting with periodic or intermittent febrile disorders.


Subject(s)
Arthritis, Juvenile/immunology , Autoimmune Diseases/immunology , Cytokines/therapeutic use , Hereditary Autoinflammatory Diseases/immunology , Still's Disease, Adult-Onset/immunology , Arthritis, Juvenile/diagnosis , Arthritis, Juvenile/drug therapy , Autoimmune Diseases/diagnosis , Autoimmune Diseases/drug therapy , Diagnosis, Differential , Fever/drug therapy , Fever/immunology , Hereditary Autoinflammatory Diseases/diagnosis , Hereditary Autoinflammatory Diseases/drug therapy , Humans , Immunity, Innate/immunology , Inflammation/drug therapy , Inflammation/immunology , Still's Disease, Adult-Onset/diagnosis , Still's Disease, Adult-Onset/drug therapy , Syndrome
20.
Semin Arthritis Rheum ; 42(6): 667-73, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23731828

ABSTRACT

Advances in rheumatology occur at a rapid pace and staying abreast of important changes is a challenge for all. Both novel drug development and enhanced understanding of conventional or historic therapies have molded current day rheumatologic practice. Rheumatology has led the way in the use of outcome measures and imaging modalities in common disorders like rheumatoid arthritis, osteoarthritis, and gout. The expertise of the rheumatologist has widened such that knowledge of economics, legal issues, related disorders and extraarticular disease is essential. In February 2013, the 6th annual Rheumatology Winter Clinical Symposium was held. At this meeting, faculty and participants held discussions and exchanged knowledge about new scientific data and how it may impact the care of rheumatology patients. Excerpts from some of the lectures from the Rheumatology Winter Clinical Symposium 2013 are included in this review. These and other presentations can be viewed in their entirety at http://www.r-w-c-s.com.


Subject(s)
Rheumatic Diseases/drug therapy , Rheumatology , Humans
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