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This article focuses on the factors contributing to increased risk for malnutrition in juvenile rheumatoid arthritis patients, the methods of identifying and treating nutritional problems (including protein-energy malnutrition and obesity), and outlines national statistics demonstrating that the pediatric rheumatic patient population is nutritionally underserved. The dietitian, in conjunction with the interdisciplinary treatment team, should be involved in the initial evaluation of all juvenile rheumatoid arthritis patients to facilitate early detection of nutritional problems and initiate nutritional intervention strategies.
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PMID:Nutritional aspects of juvenile rheumatoid arthritis. 190 95

The hypothesis that their psychological adjustment is related in part to resources present in their families was investigated in 153 children, age 4-16, who had one of five chronic physical disorders: juvenile diabetes, juvenile rheumatoid arthritis, chronic obesity, spina bifida, or cerebral palsy. Their mothers completed standardized psychometric instruments to measure specific dimensions of family psychological and utilitarian resources and of child adjustment. Variation in children's psychological adjustment was related both to their psychological and utilitarian family resources. Psychological family resources contributed uniquely to the prediction of adjustment beyond that provided by utilitarian family resources. These results are discussed as having implications for the identification of chronically ill and handicapped children at risk for adjustment difficulties.
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PMID:Family resources as resistance factors for psychological maladjustment in chronically ill and handicapped children. 252 67

The relationship between social support and adjustment was investigated in children with a chronic physical illness or handicap. Mothers of 153 children with juvenile diabetes, juvenile rheumatoid arthritis, chronic obesity, spina bifida, or cerebral palsy reported on these children's family support, peer support, externalizing behavior problems, and internalizing behavior problems. Children reported as having high social support from both family and peers showed a significantly better adjustment than those with high social support from only one of these sources. Chronically ill or physically handicapped children without high support from both family and peers were reported to have significantly more behavior problems than children in general. Both family and peer support contributed negatively and independently to the variance in externalizing behavior problems, whereas only peer support did so for internalizing behavior problems. There were no interactions between type of support and either sex or age in predicting adjustment.
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PMID:Social support and adjustment in chronically ill and handicapped children. 252 86

While deficient exercise performance of sick children results from hypoactivity and detraining, it can also be caused by specific pathophysiological factors. These can affect one or more components of physical fitness. A low maximal aerobic power will result from a low maximal stroke volume, as in aortic stenosis or cardiomyopathy; a low maximal heart rate, as in congenital complete heart block or intake of beta-blockers; a low O2 content of the arterial blood, as in anemia or advanced cystic fibrosis; and a high O2 content of mixed-venous blood, as in muscle atrophy or severe malnutrition. A high O2 cost of locomotion, as in advanced obesity or cerebral palsy, will cause the patient to exert at a high percentage of his maximal aerobic power and thus fatigue easily. A subnormal muscle strength, as in progressive muscular dystrophy or juvenile rheumatoid arthritis, is sometimes the primary factor that limits the walking ability or other daily functions. Recent data suggest that local muscle endurance, as assessed by the Wingate anaerobic test, is particularly deficient in some neuromuscular diseases. Examples are muscular dystrophies and spastic cerebral palsy. The ratio of peak anaerobic power to peak aerobic power seems lower in such patients than in able-bodied controls.
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PMID:Pathophysiological factors which limit the exercise capacity of the sick child. 372 7

We report on two patients with velo-cardio-facial syndrome (VCFS) and juvenile rheumatoid arthritis (JRA). The first, a 9-year-old girl, presented with microcephaly, characteristic face, congenital heart disease, and velopharyngeal insufficiency. Fluorescence in situ hybridization (FISH) study showed deletion of D22S75 (N25), confirming the diagnosis of VCFS. At age 7, she developed joint pain, and polyarticular JRA was diagnosed. Awareness of this case led to the subsequent diagnosis of VCFS (also confirmed by FISH) in another, unrelated 12-year-old girl with characteristic face, hypernasal speech, and obesity. JRA was first diagnosed in this case at age 5 years, and she subsequently developed severe polyarticular disease. Neither patient had clinical or laboratory evidence of immunodeficiency. This observation represents the first report of the association of JRA with VCFS and raises the question of whether this is a coincidental association or a rare complication of this condition.
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PMID:Juvenile rheumatoid arthritis in velo-cardio-facial syndrome: coincidence or unusual complication? 928 62

Validation studies of bioelectric impedance analysis (BIA) were performed in children with obesity, Duchenne muscle dystrophy and juvenile rheumatoid arthritis. BIA allowed an accurate assessment of total body water in all groups (CV from 4.1 to 5.1%). However, the prediction of extracellular water by BIA was not always satisfactory (CV from 8.5 to 12.5%), being better in the groups of children with the lowest variability in body water distribution.
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PMID:Use of bioelectric impedance analysis (BIA) in children with alterations of body water distribution. 956 58

The heterogeneous nature of juvenile rheumatoid arthritis is further defined in publications from the past year. Decreased IL-10 production, an anti-inflammatory cytokine, and soluble IL-6 receptor are associated with systemic juvenile rheumatoid arthritis (JRA). IL-4 may have an anti-inflammatory role in the pathogenesis of pauciarticular JRA and may protect, along with IL-10, against the development of joint erosions. Active JRA is associated with lower levels of platelet activating factor acetylhydrolase, which may contribute to the loss of anti-inflammatory activity and increased risk of atherogenesis. The phase 3 clinical trial of etanercept confirmed its efficacy and safety in JRA. Intra-articular steroids are safe and effective in the treatment of JRA. Methotrexate does have disease-modifying effects. The risk of hepatotoxicity with methotrexate use increases with serial transaminase abnormalities and with obesity. Osteoclasts are responsible for joint erosions. Cyclosporine A, mycophenolate mofetil, and methotrexate are effective in the treatment of refractory uveitis. During the past year a number of scientific publications have contributed significantly to our understanding and treatment of juvenile rheumatoid arthritis.
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PMID:Juvenile rheumatoid arthritis. 1050 57

Adrenal androgens dehydroepiandrosterone (DHEA; prasterone) and its sulphated form (DHEA-S) are among the most abundant hormonal steroids in men and nonpregnant women. Deficiencies of these adrenal androgens are associated with autoimmune disorders such as rheumatoid arthritis (RA). Recent studies from our laboratory have also identified low levels of adrenal androgens in the serum and synovial fluid of patients with juvenile rheumatoid arthritis (JRA). These findings support and complement those already published for RA and other autoimmune diseases. Because of the paucity of data on the hormonal status of patients with JRA, studies on the relationship between hypoandrogenicity and predisposition to develop JRA, and/or disease progression have not been conducted. In addition, despite the rapid expansion of research in the clinical use of these adrenal androgens in hyperlipidaemia, atherosclerosis, obesity, diabetes mellitus, insulin resistance and hypertension, their potential beneficial effects in JRA/RA have not been fully investigated. In fact, clinical trials of adrenal androgens in RA have only been conducted for the treatment of systemic lupus erythematosus. Further studies using prospective approaches are necessary to provide a unified consensus on the hormonal status of patients with JRA (as well as those with RA). This overview of our knowledge of the putative role(s) of hormones in arthritis will hopefully stimulate researchers in basic science and rheumatologists to synergistically collaborate in the effective translation of such knowledge to new clinical approaches.
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PMID:Could hormones make a difference in the treatment of juvenile rheumatoid arthritis? 1803 14

Juvenile idiopathic arthritis (JIA) is the most prevalent chronic arthropathy in childhood and adolescence. The prevalence of metabolic syndrome, as well as obesity, is increasing rapidly in all age groups, including children. Metabolic syndrome is defined as a cluster of risk factors for cardiovascular disease and type 2 diabetes mellitus, including abdominal obesity, insulin resistance, dyslipidemia and hypertension. Besides those components, inflammation has been increasingly considered as a significant component of metabolic syndrome and obesity, and patients with diseases characterized by the presence of chronic inflammation, such as JIA, could represent special risk groups. Glucocorticoids are used routinely in the management of the inflammation of JIA, in high doses and long-term. Long-term use of the glucocorticoids can cause to insulin resistance, hypertension, and obesity, increasing the risk of metabolic syndrome. The aim of this study is to review the literature on the prevalence of different components of metabolic syndrome in patients with JIA. We observed that the data on metabolic syndrome and its components in those patients are very scarce and more studies needed, in view of the potential increased risk of cardiovascular disease.
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PMID:Metabolic syndrome and juvenile idiopathic arthritis. 2112 54

Many studies show that Juvenile Idiopathic Arthritis (JIA) is associated with early subclinical signs of atherosclerosis. Chronic inflammation per se may be an important driver but other known risk factors, such as dyslipidemia, hypertension, insulin insensitivity, a physically inactive lifestyle, obesity, and tobacco smoking may also contribute substantially. We performed a systematic review of studies through the last 20 years on early signs of subclinical atherosclerosis in children and adolescents with JIA with the purpose of investigating whether possible risk factors, other than inflammation, were considered.We found 13 descriptive cross sectional studies with healthy controls, one intervention study and two studies on adults diagnosed with JIA. Only one study addressed obesity, and physical activity (PA) has only been assessed in one study on adults with JIA and only by self-reporting. This is important as studies on PA in children with JIA have shown that most patients are less physically active than their healthy peers, and as physical inactivity in several large studies of normal schoolchildren is found to be associated with increased clustering of risk factors for cardiovascular disease. It is thus possible that an inactive lifestyle in patients with JIA is an important contributor to development of the subclinical signs of atherosclerosis seen in children with JIA, and that promotion of an active lifestyle in childhood and adolescence may diminish the risk for premature atherosclerotic events in adulthood.
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PMID:Premature subclinical atherosclerosis in children and young adults with juvenile idiopathic arthritis. A review considering preventive measures. 2673 63


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