Levent Ozgonenel

Kanuni Sultan Süleyman Training and Research Hospital Istanbul, İstanbul, Istanbul, Turkey

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Publications (4)7.76 Total impact

  • Article: Home-based exercise therapy in patients with ankylosing spondylitis: effects on pain, mobility, disease activity, quality of life, and respiratory functions.
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    ABSTRACT: The home-based exercise therapy recommended to the patients with ankylosing spondylitis (AS) is a simply applicable and cheap method. The aim of this study was to investigate the effects of home-based exercise therapy on pain, mobility, function, disease activity, quality of life, and respiratory functions in patients with AS. Eighty patients diagnosed with AS according to the modified New York criteria were included in the study. Home-based exercise program including range of motion, stretching, strengthening, posture, and respiratory exercises was practically demonstrated by a physiotherapist. A training and exercise manual booklet was given to all patients. Patients following home-based exercise program five times a week at least 30 min per session (exercise group) for 3 months were compared with those exercising less than five times a week (control group). Visual analog scale pain (VASp) values at baseline were significantly higher in the exercise group. The exercise group showed improvements in VASp, tragus-wall distance, morning stiffness, finger-floor distance, modified Schober's test, chest expansion, the Bath Ankylosing Spondylitis Disease Activity Index, the Bath Ankylosing Spondylitis Functional Index, Ankylosing Spondylitis Quality of Life Questionnaire (ASQoL), forced expiratory volume in first second, and forced vital capacity at third month. There was significant difference in ASQoL scores between the two groups in favor of the exercise group at third month. Regular home-based exercise therapy should be a part of main therapy in patients with AS. Physicians should recommend that patients with AS do exercise at least five times a week at least 30 min per session.
    Clinical Rheumatology 06/2011; 31(1):91-7. · 2.00 Impact Factor
  • Article: Rheumatoid arthritis risk associates with DNA repair gene XRCC1 Arg399Gln polymorphism in Turkish patients.
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    ABSTRACT: Rheumatoid arthritis (RA) is an autoinflammatory disease with a genetic background. The synoviocytes in RA shows cellular transformation with tumor-like features, and RA patients have genomic instability and relaxation of DNA repair mechanisms. The polymorphisms in BER repair pathway genes, XRCC1 and OGG1, may change the response to inflammation via altered DNA repair capacity. In this study, we aimed to investigate the relationship between the risk of RA and XRCC1 Arg194Trp, Arg399Gln, and OGG1 Ser326Cys polymorphisms in a group of Turkish RA patients. XRCC1 Arg194Trp, Arg399Gln, and OGG1 Ser326Cys polymorphisms were investigated by PCR-RFLP method in 100 RA patients and 158 healthy control subjects. The results were statistically analyzed by calculating the odds ratios (OR) and their 95% confidence intervals (95% CI) using the χ(2)-tests. RA patients in this study had significantly higher frequencies of XRCC1 Arg399Gln polymorphism in both homozygote (GG) (35%, OR: 7.78 [95% CI: 3.65-16.59], P < 0.001) and heterozygote (AG) forms (41%, OR: 2.17 [95% CI: 1.19-3.96], P < 0.01) and also increased frequency of 399Gln (G) allele (55%, OR:2.99 [95% CI: 1.67-5.37], P < 0.001). We conclude that XRCC1 Arg194Trp, and OGG1 Ser326Cys polymorphisms are not associated with RA; however, Arg399Gln polymorphism is a significant risk factor of RA, and carriers of 399Gln (G) allele have greater risk of RA.
    Rheumatology International 01/2011; 32(5):1265-9. · 1.88 Impact Factor
  • Article: The relation of serum vascular endothelial growth factor level with disease duration and activity in patients with rheumatoid arthritis.
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    ABSTRACT: Vascular endothelial growth factor (VEGF) is known to be involved in the pathogenesis of rheumatoid arthritis (RA). In order to elucidate the association between VEGF levels and RA disease activity, VEGF concentrations were measured in RA patients at different phases and severity levels. Thirty-eight healthy subjects and 40 patients with RA were prospectively included in the study. Subjects were further categorized into four subgroups (high, moderate, low, or remission) using the disease activity score-28 (DAS28) scoring system. VEGF levels were significantly higher in patients than controls (p < 0.001). VEGF levels differed significantly in controls, early and late-phase RA patients (p = 0.002). A significant difference was found between controls and patients with high RA disease activity scores (p < 0.0001). VEGF levels were not correlated with age (r = -0.016; p = 0.921) or sex (r = 0.209; p = 0.921). VEGF values were correlated with erythrocyte sedimentation rate (r = 0.445; p = 0.004), but was not correlated with serum rheumatoid factor levels (r = -0.130; p = 0.424) in the patient group. In conclusion, higher VEGF levels are associated with late phase and high disease activity in RA, independent of age and sex.
    Clinical Rheumatology 05/2010; 29(5):473-7. · 2.00 Impact Factor
  • Article: Two rare involvement sites: synovial chondromatosis.
    Sule Tutun, Levent Ozgonenel, Esra Cetin, Ebru Aytekin
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    ABSTRACT: Synovial chondromatosis (SC) is a rarely encountered benign disease of unknown etiology characterized by multiple joint mouse, as well as metaplastic cartilage points in the joint, bursa and tendon sheaths. Although single joint involvement is frequently encountered, multiple joint involvements may also occur. In this study, two patients with SC in the right shoulder joint and in both ankles were presented, reviewed according to literature.
    Rheumatology International 10/2009; 31(5):687-9. · 1.88 Impact Factor