Sibel Yilmaz Oner1, Omur Volkan2, Can Oner3, Alperen Mengi2, Haner Direskeneli1, Demet Ataman Tasan4. 1. Marmara University, School of Medicine, Department of Rheumatology. 2. Fatih Sultan Mehmet Training and Research Hospital, Department of Rheumatology. 3. Istanbul Bilim University, School of Medicine, Department of Family Medicine. 4. Medical Park Goztepe Hospital, Department of Rheumatology.
Abstract
OBJECTIVES: Leptin, is a fat tissue hormone which effects energy expenditure, food intake , hematopoiesis, osteogenesis, angiogenesis, reproductive and immune systems. We aimed to determine serum leptin levels and investigate the association between disease activity and other parameters in RA patients. METHODS: Patients with RA (n=106) as the study group, healthy controls (n=52) and osteoarthritis (OA) patients (n=37) as a control group were enrolled to the study. RA patients were categorized in four different groups according to DAS28 scores: remission ,low (LDA), moderate (MDA) or high (HDA) disease activity . RESULTS: No differences were present between the body mass indices of the three groups. Mean leptin levels in RA patients, OA group and healthy individuals were 25,60 ± 13,41, 23,03 ± 11,51 and 23,81 ± 12,85 ng/ml, respectively and no significant difference was present between the groups. Nine of (8,5%) RA patients were in remission, 16 (15,1%) were in LDA, 40 (37,7%) in MDA and 41 (38,7%) were in HDA. Leptin levels did not correlate with DAS28 scores of RA patients (r=-0,12, p=0,11). Mean leptin levels in RA patients with remission was 32,65 ± 7, 28 in LDA 23,94 ± 10,94 in MDA 26,73 ± 14,92 and in HDA 23,59 ± 13,50 ng/ml (p=NS). No associations were observed between leptin levels and CRP, ESR, RF positivity and disease duration. CONCLUSIONS: Our study revealed no correlation of disease activity and serum leptin levels. Therefore leptin does not seem to be an appropriate biomarker to monitorize inflammation in RA.
OBJECTIVES:Leptin, is a fat tissue hormone which effects energy expenditure, food intake , hematopoiesis, osteogenesis, angiogenesis, reproductive and immune systems. We aimed to determine serum leptin levels and investigate the association between disease activity and other parameters in RApatients. METHODS:Patients with RA (n=106) as the study group, healthy controls (n=52) and osteoarthritis (OA) patients (n=37) as a control group were enrolled to the study. RApatients were categorized in four different groups according to DAS28 scores: remission ,low (LDA), moderate (MDA) or high (HDA) disease activity . RESULTS: No differences were present between the body mass indices of the three groups. Mean leptin levels in RApatients, OA group and healthy individuals were 25,60 ± 13,41, 23,03 ± 11,51 and 23,81 ± 12,85 ng/ml, respectively and no significant difference was present between the groups. Nine of (8,5%) RApatients were in remission, 16 (15,1%) were in LDA, 40 (37,7%) in MDA and 41 (38,7%) were in HDA. Leptin levels did not correlate with DAS28 scores of RApatients (r=-0,12, p=0,11). Mean leptin levels in RApatients with remission was 32,65 ± 7, 28 in LDA 23,94 ± 10,94 in MDA 26,73 ± 14,92 and in HDA 23,59 ± 13,50 ng/ml (p=NS). No associations were observed between leptin levels and CRP, ESR, RF positivity and disease duration. CONCLUSIONS: Our study revealed no correlation of disease activity and serum leptin levels. Therefore leptin does not seem to be an appropriate biomarker to monitorize inflammation in RA.
Authors: Maria Fernanda Brandão de Resende Guimarães; Marcus Vinícius Melo de Andrade; Carla Jorge Machado; Érica Leandro Marciano Vieira; Maria Raquel da Costa Pinto; Antônio Lúcio Teixeira Júnior; Adriana Maria Kakehasi Journal: Rheumatol Int Date: 2018-06-11 Impact factor: 2.631
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