Objectives. Our aim was to determine the effect of chronic regular exercise on ischemia-modified albumin (IMA) levels and oxidative stress in type 2 diabetes mellitus (DM). Design and methods. Sixty patients with type 2 DM were randomly divided into two groups as exercise (17 M, 13 F) and non-exercise (12 M, 18 F) groups, each consisting of 30 patients. The exercise group underwent a 3-month aerobic regular exercise consisting of moderate-intensity power walking. The non-exercise subjects remained sedentary throughout the study period. Serum total antioxidant status (TAS), total oxidant status (TOS), and IMA levels of the groups were determined at baseline and 3 months later. Results. There was no significant change in TOS and IMA levels of exercise group but TAS levels were significantly increased (p < 0.05). Also, postexercise systolic (p < 0.001) and diastolic (p < 0.05) blood pressures of the exercise group were significantly lower than the baseline values. In addition, there was no significant change in TAS and TOS levels of the non-exercise group; however, IMA levels were significantly increased (p < 0.01). Conclusion. We have shown, for the first time, that exercise prevents increase in IMA levels in type 2 DM which might have resulted from increased levels of TAS and reduces the risk of ischemia in these patients. These findings show that chronic exercise is beneficial in the prevention of oxidative stress in patients with type 2 DM as documented by decreased IMA levels.
ÖzetAmaç: Obezite, özellikle gelişmiş ülkelerde çok yaygın olan bir sağlık problemidir. Vücutta fazla miktarda yağ dokusunun olması sebebiyle gelişir. Etyolojide birçok faktör sorumlu tutulmaktadır ve tedavi gerektirir. Konjuge linoleik asit (KLA), bir omega-6 esansiyel yağ asidi olan linoleik asitin geometrik ve pozisyonel izomerlerini kapsar. KLA'in kanser riskini azalttığı, kalp hastalıklarını önlediği ve bağışıklık fonksiyonlarını geliştirdiği gibi insan sağlığı üzerine faydalı etkileri olduğu bildirilmiştir. Bu çalışmada obez ve sağlıklı kişilerde KLA izomerleri içinde biyolojik aktivite yönünden önemli bulunan plazma 10-trans, 12-cis KLA (t10,c12 KLA) ve 9-cis,11-trans KLA (c9,t11 KLA) düzeylerinin araştırılması hedeflenmiştir. Gereç ve Yöntem: Çalışma 18-70 yaşları arasında 105 (erkek: 22, kadın: 83) obez ve 18-70 yaşları arasında 80 (erkek: 20, kadın: 60) sağlıklı normal kilolu bireyler üzerinde gerçekleştirildi. Obez kişilerde vücut kitle indeksi (VKİ) değeri 35 kg/m2' den büyük, sağlıklı kontrollerde VKİ değeri 25 kg/m2' den küçüktü. Plazma t10,c12 KLA ve c9,t11 KLA düzeyleri gaz kromatografisi/kütle spektrofotometresi yöntemi ile ölçül-dü. Bulgular: Obez kişilerin plazma t10,c12 KLA ve c9,t11 KLA seviyeleri sıra-sı ile 13.42±3.94 ve 9.23 ±5.61 mg/L olarak bulundu. Aynı parametreler kontrol grubunda sırası ile 13.15±3.67 ve 9.80+5.06 mg/L olarak bulundu. Sonuç: Obez ve kontrol grubunda KLA izomerlerinin plazma düzeyleri arasında önem-li bir fark bulunamadı. Fakat, plazma t10,c12 KLA ve c9,t11 KLA seviyeleri ile vücut yağ dağılımının iyi bir göstergesi olarak kabul edilen bel-kalça oranı arasında istatistiki açıdan anlamlı düzeyde negatif bir korelasyon bulundu. Bulgularımıza dayanarak obez kişilerde plazma KLA izomerlerinin vücut yağ kitlesi ile ters ilişki gösterdiği söylenebilir. Anahtar KelimelerObezite; Konjuge Linoleik Asit; Vücut Kitle İndeksi; Bel-Kalça Oranı Abstract Aim: Obesity is very widespread health problem especially in developed countries. It occurs due to more body fat accumulation than normal levels, it implicates with many factors in the etiology and it needs to treatment. Conjugated linoleic acid (CLA) refers to a class of positional and geometric conjugated isomers of the omega-6 essential fatty acid, linoleic acid. An array of purposed beneficial effects of CLA, such as capability of reducing or eliminating cancer, preventing heart disease and improving immune function on human healthy have been reported. This study has aimed to investigate biologically active isomers of CLA (10-trans, 12-cis CLA and 9-cis,11-trans CLA ) in obese and healthy subjects. Material and Method: The study was performed on 105 obese people (22M, 83F) aged 18-70 years and 80 control subjects (20M,60F) aged 18-70 years. Body mass index of the obese subjects was more than 35 kg/m2 and that of healthy controls was less than 25 kg/m2. Plasma 10-trans, 12-cis CLA (t10,c12 CLA) and 9-cis,11-trans CLA (c9,t11 CLA) levels were measured by GS-MS technique. Results: t10,c12 and c9,t11 isomers of CLA levels of the ob...
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