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During exercise, energy comes mainly from carbohydrates and lipids. The relative contribution of lipids and glucose as energy substrates to exercise depends on the parameters of the exercise (duration, intensity and level of training) and the physiological conditions of the subject.
Inflammatory diseases such as juvenile idiopathic arthritis (JIA) are treated, for the most severe forms, by biotherapies. These treatments target certain pro-inflammatory cytokines including TNFα. In adults with rheumatoid arthritis several studies have shown that treatment with anti-TNFα increases insulin sensitivity. To our knowledge there is no data on the oxidation of energy substrates during exercise in children and adolescents with AJI, nor on the impact of anti-TNFα treatments on the oxidation of energetic substrates in children.
We hypothesize that, compared to healthy children, children with JIA should exhibit altered oxidation of energy substrates at rest and submaximal physical exercise due to physical deconditioning and inflammation. In addition, those treated with anti-TNFα should have an oxidation profile of energy substrates at exercise different from that of patients not treated with anti-TNFα. We also hypothesize that anti-TNFα treatments modify the contribution of energy chains (aerobic, anaerobic and anaerobic alactic) during the exercise.
Annual evaluation by Lipoxmax test and Wingate anaerobic test (WAnT) during 3 years or until the transition from pediatric to adult care.
For healthy volunteer, only one lipaxmax and Wingate test.
Allocation: Non-Randomized, Intervention Model: Crossover Assignment, Masking: Open Label
Juvenile Idiopathic Arthritis
University Hospital, Clermont-Ferrand
Published on BioPortfolio: 2016-12-01T16:08:22-0500
Polyarticular juvenile idiopathic arthritis (Poly JIA) is a form of juvenile arthritis, which is a chronic disease affecting approximately 250,000 people younger than 16 years of age. Poly...
This is a multicenter, Phase 3 randomized, placebo-controlled study designed to evaluate adalimumab in subjects with polyarticular juvenile idiopathic arthritis (JIA) who are either methot...
The purpose of this study is to compare two aggressive drug regimens for children with poly-juvenile idiopathic arthritis (JIA) and extended oligo JIA.
Growth retardation is well known in patients with severe forms of juvenile idiopathic arthritis. Especially those who were under additional treatment with glucocorticoids for high disease ...
This multi-center observational Registry will collect long-term safety data on patients treated with celecoxib or non-selective nonsteroidal anti-inflammatory drugs (nsNSAIDs) as used in c...
Juvenile Idiopathic Arthritis is the most common chronic pediatric rheumatic disease. The announcement of Juvenile Idiopathic Arthritis poses for parents a number of challenges that make it hard to ac...
Juvenile idiopathic arthritis (JIA) encompasses a group of diseases of unknown etiology having in common arthritis in at least 1 joint that persists for 6 weeks and begins before 16 years of age, with...
This study was designed to determine the clinical profile of juvenile idiopathic arthritis (JIA) and its morbidity using the juvenile arthritis damage index (JADI) score at a tertiary care center in n...
To investigate the frequency of ultrasound (US)-detectable involvement of subtalar joint (STJ), to compare clinical versus US assessment of STJ, and to compare different scanning approaches to the STJ...
To determine the efficacy of differing biologic therapies amongst individual juvenile idiopathic arthritis (JIA) subtypes rather than JIA overall.
Rheumatoid arthritis of children occurring in three major subtypes defined by the symptoms present during the first six months following onset: systemic-onset (Still's Disease, Juvenile-Onset), polyarticular-onset, and pauciarticular-onset. Adult-onset cases of Still's disease (STILL'S DISEASE, ADULT-ONSET) are also known. Only one subtype of juvenile rheumatoid arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.
A serious complication of childhood systemic inflammatory disorders that is thought to be caused by excessive activation and proliferation of T-LYMPHOCYTES and MACROPHAGES. It is seen predominantly in children with systemic onset JUVENILE IDIOPATHIC ARTHRITIS.
A butyl-diphenyl-pyrazolidinedione that has anti-inflammatory, antipyretic, and analgesic activities. It has been used in ANKYLOSING SPONDYLITIS; RHEUMATOID ARTHRITIS; and REACTIVE ARTHRITIS.
A variable mixture of the mono- and disodium salts of gold thiomalic acid used mainly for its anti-inflammatory action in the treatment of rheumatoid arthritis. It is most effective in active progressive rheumatoid arthritis and of little or no value in the presence of extensive deformities or in the treatment of other forms of arthritis.
Human immune-response, D-related antigen encoded by the D locus on chromosome 6 and found on lymphoid cells. It is strongly associated with rheumatoid arthritis and juvenile diabetes.
Arthritis Fibromyalgia Gout Lupus Rheumatic Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Diction...
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...
Cytokine Tumour Necrosis Factor (TNF)
TNF is a compound that is classified as a cytokine which plays a central role in the cellular mechanisms of apoptosis or cell death. However, there are a number of different kinds of TNF, just under twenty, but the family of molecules have very similar a...