Morphological adaptation of muscle collagen and receptor of advanced glycation end product (RAGE) in osteoarthritis patients with 12 weeks of resistance training: influence of anti-inflammatory or glucosamine treatment
| Autor: | Abigail L. Mackey, Susanne Germann Petersen, Ana Claudia Mattiello-Sverzut, Michael Kjaer |
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| Rok vydání: | 2013 |
| Předmět: |
Male
medicine.medical_specialty Vastus lateralis muscle Biopsy Immunology Receptor for Advanced Glycation End Products Osteoarthritis Placebo RAGE (receptor) 03 medical and health sciences Type IV collagen chemistry.chemical_compound 0302 clinical medicine Rheumatology Double-Blind Method Glucosamine Internal medicine medicine Immunology and Allergy Humans Receptors Immunologic Muscle Skeletal 030304 developmental biology Aged 0303 health sciences business.industry Anti-Inflammatory Agents Non-Steroidal Skeletal muscle Resistance Training Middle Aged Osteoarthritis Knee medicine.disease Immunohistochemistry Surgery Endocrinology medicine.anatomical_structure chemistry Advanced glycation end-product Female Collagen business TREINAMENTO FÍSICO 030217 neurology & neurosurgery |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Rheumatology International; Vol 33 |
| Popis: | The aim of this study was to investigate the effect of 12-week resistance training on morphological presence of collagen and RAGE (receptor for advanced glycation end products) in skeletal muscle of patients with knee osteoarthritis (OA). Little is known about the influence of exercise on the skeletal muscle matrix that supports joints affected by OA mainly when it is associated with medication taken by OA patients (non-steroid anti-inflammatory drugs (NSAID) and glucosamine). A biopsy was collected from the vastus lateralis muscle in all patients before and after 12-week period of training. The patients (age 55-69 years) were divided into three groups, treated with NSAID, glucosamine or placebo. In addition, the muscle samples were analysed by immunohistochemistry for collagen types, RAGE and capillaries ratio. An increment in immunoreactivity for type IV collagen after the training period was observed in 72 % of all biopsies when compared with their respective baseline samples. Reduced immunoreactivity of collagen type I was observed in all patients treated with glucosamine. A significant increase with training in the amount of RAGE was detected in the placebo group only (p < 0.05). Comparison of post-treatment states indicated significant differences between the placebo and glucosamine group data, demonstrating increased levels in the placebo group (p < 0.05). These findings suggest a basement membrane remodelling in favour of a strengthened extracellular matrix surrounding individual muscle fibres after 12 weeks of resistance training. Glucosamine with training appeared to attenuate RAGE accumulation more than was seen with NSAID or placebo in skeletal muscle of OA patients. |
| Databáze: | OpenAIRE |
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