TY - JOUR T1 - Obez Hastalarda Proinflamatuvar Sitokinler ile Fibrinolitik Sistem Arasındaki İlişki TT - The Relationship Between Proinflammatory Cytokine Levels and Fibrinolytic System in Obese Patients AU - Gerenli, Murat AU - Gerenli, Murat AU - Tuğrul, ARMAĞAN AU - Demir, Muzaffer AU - Arıkan, Ender AU - Arıkan, Ender AU - Güldiken, Sibel AU - Azcan, Şennur PY - 2008 DA - January JF - Balkan Medical Journal PB - Trakya Üniversitesi WT - DergiPark SN - 2146-3123 SP - 44 EP - 51 VL - 2008 IS - 1 LA - tr AB - Amaç: Obez kişilerde proinflamatuar sitokinlerden TNF-a ve IL-6, fibrinolitik sistem parametrelerinden t-PA ve PAI-1 ve insülin direnci arasındaki ilişki araştırıldı. Hastalar ve Yöntemler: Çalışmaya obez (VKİ ≥30 kg/m2) olarak değerlendirilen 54 kişi (41 kadın, 13 erkek; ort. yaş 33.5) ve obezite sorunu olmayan (VKİ < 25 kg/m2) 30 kişi (19 kadın, 11 erkek; ort. yaş 22.3) alındı. Fibrinojen düzeyleri koagülometrik olarak ve TNF-a, IL-6, t-PA, PAI-1 düzeyleri ELISA yöntemiyle ölçüldü. Bulgular: Kontrol grubuyla karşılaştırıldığında, obez kişilerde fibrinojen (p < 0.01), PAI-1 (p < 0.001), TNF-a (p < 0.01) ve IL-6 düzeyleri (p < 0.001) anlamlı derecede yüksek, t-PA düzeyi (p < 0.001) ve t-PA/PAI-1 oranı (p < 0.001) anlamlı derecede düşük bulundu. Obezlerde TNF-a ile t-PA (p=0.007) ve t-PA/PAI-1 oranı (p=0.016) arasında ters ilişki saptandı. İnsülin direnci olan ve olmayan obez kişilerde parametreler arasında fark yoktu. Sonuç: Obezitede adipoz dokudan salgılanan özellikle TNF-a gibi inflamatuar sitokinlerin artması fibrinolizde azalmaya yol açar. Obez kişilerde görülen bu değişiklikler, insülin direncinden bağımsız olarak ateroskleroza neden olabilir. KW - Sitokinler KW - fibrinoliz KW - insülin direnci KW - obezite/komplikasyon N2 - Objectives: The aim of this study was to investigate the relationship between proinflammatory cytokines (TNF-α and IL-6), and fibrinolytic system parameters (t-PA, and PAI-1) and insulin resistance in obese individuals. Patients and Methods: The study included 54 obese subjects (BMI ≥30 kg/m2; 41 females, 13 males; mean age 33.5 years) and 30 non-obese healthy individuals (BMI <25 kg/m2; 19 females, 11 males; mean age 22.3 years). Fibrinogen levels were measured by the coagulometric method and the measurements of TNF-α, IL-6, t-PA and PAI-1 were carried out by the ELISA method. Results: Compared with non-obese subjects, obese individuals had significantly higher fibrinogen (p<0.01), PAI-1 (p<0.001), TNF-α (p<0.01), and IL-6 (p<0.001) levels, and significantly lower t-PA level (p<0.001) and t-PA/PAI-1 ratio (p<0.001). We also found an inverse relationship between TNF-α and t-PA levels (p=0.007) and t-PA/PAI-1 ratio (p=0.016) in obese individuals. The presence or absence of insulin resistance did not affect proinflammatory cytokines and fibrinolytic system parameters in obese individuals. Conclusion: Our findings indicate increased inflammatory cytokine levels especially in TNF-α level, and decreased fibrinolysis in obese individuals. These changes may contribute to atherosclerotic process independent from insulin resistance in obesity. Turkish Başlık: Obez Hastalarda Proinflamatuvar Sitokinler ile Fibrinolitik Sistem Arasındaki İlişki Anahtar Kelimeler: Sitokinler; fibrinoliz; insülin direnci; obezite/komplikasyon Amaç: Obez kişilerde proinflamatuar sitokinlerden TNF-α ve IL-6, fibrinolitik sistem parametrelerinden t-PA ve PAI-1 ve insülin direnci arasındaki ilişki araştırıldı. Hastalar ve Yöntemler: Çalışmaya obez (VKİ ≥30 kg/m2) olarak değerlendirilen 54 kişi (41 kadın, 13 erkek; ort. yaş 33.5) ve obezite sorunu olmayan (VKİ <25 kg/m2) 30 kişi (19 kadın, 11 erkek; ort. yaş 22.3) alındı. Fibrinojen düzeyleri koagülometrik olarak ve TNF-α, IL-6, t-PA, PAI-1 düzeyleri ELISA yöntemiyle ölçüldü. Bulgular: Kontrol grubuyla karşılaştırıldığında, obez kişilerde fibrinojen (p<0.01), PAI-1 (p<0.001), TNF-α (p<0.01) ve IL-6 düzeyleri (p<0.001) anlamlı derecede yüksek, t-PA düzeyi (p<0.001) ve t-PA/PAI-1 oranı (p<0.001) anlamlı derecede düşük bulundu. Obezlerde TNF-α ile t-PA (p=0.007) ve t-PA/PAI-1 oranı (p=0.016) arasında ters ilişki saptandı. İnsülin direnci olan ve olmayan obez kişilerde parametreler arasında fark yoktu. Sonuç: Obezitede adipoz dokudan salgılanan özellikle TNF-α gibi inflamatuar sitokinlerin artması fibrinolizde azalmaya yol açar. Obez kişilerde görülen bu değişiklikler, insülin direncinden bağımsız olarak ateroskleroza neden olabilir. CR - Caballero Ae. endothelial dysfunction in obesity and insulin resistance: a road to diabetes and heart disease. Obes res 2003;11:1278-89. CR - Festa A, d’Agostino r Jr, Howard G, mykkänen l, Tracy rP, Haffner Sm. Chronic subclinical inflam- mation as part of the insulin resistance syndrome: the Insulin resistance Atherosclerosis Study (IrAS). Circulation 2000;102:42-7. CR - marckmann P, Toubro S, Astrup A. Sustained improvement in blood lipids, coagulation, and fibri- nolysis after major weight loss in obese subjects. eur J Clin nutr 1998;52:329-33. CR - Charles mA, morange P, eschwège e, André P, Vague P, Juhan-Vague I. effect of weight change and metformin on fibrinolysis and the von Willebrand factor in obese nondiabetic subjects: the BIGPrO1 Study. Biguanides and the Prevention of the risk of Obesity. diabetes Care 1998;21:1967-72. CR - Scelles V, raccah d, Alessi mC, Vialle Jm, Juhan- Vague I, Vague P. Plasminogen activator inhibitor 1 and insulin levels in various insulin resistance states. diabete metab 1992;18:38-42. CR - mcCarty mF. Interleukin-6 as a central mediator of cardiovascular risk associated with chronic inflam- mation, smoking, diabetes, and visceral obesity: down-regulation with essential fatty acids, ethanol and pentoxifylline. med Hypotheses 1999;52:465-77. CR - Hotamisligil GS. mechanisms of TnF-alpha-induced insulin resistance. exp Clin endocrinol diabetes 1999;107:119-25. CR - Yudkin JS, Stehouwer Cd, emeis JJ, Coppack SW. C- reactive protein in healthy subjects: associations with obesity, insulin resistance, and endothelial dysfunc- tion: a potential role for cytokines originating from adipose tissue? Arterioscler Thromb Vasc Biol 1999; 19:972-8. CR - World Health Organization. Obesity: Preventing and managing the global epidemic. report of a WHO consultation on obesity. Geneva, World Health Organization. WHO/nuT/nCd/ 98.1. 1997. CR - World Health Organization. definition, diagnosis and classification of diabetes mellitus and its com- plications. report of a WHO Consultation. Geneva; WHO/nCd/nCS/99.2. 1999. CR - matthews dr, Hosker JP, rudenski AS, naylor BA, Treacher dF, Turner rC. Homeostasis model assess- ment: insulin resistance and beta-cell function from fasting plasma glucose and insulin concentrations in man. diabetologia 1985;28:412-9. CR - Gokcel A, Baltali m, Tarim e, Bagis T, Gumurdulu Y, karakose H, et al. detection of insulin resistance in Turkish adults: a hospital-based study. diabetes Obes metab 2003;5:126-30. CR - mertens I, Van Gaal lF. Obesity, haemostasis and the fibrinolytic system. Obes rev 2002;3:85-101. CR - Gillum rF, mussolino me, madans JH. Body fat distribution and hypertension incidence in women and men. The nHAneS I epidemiologic Follow-up Study. Int J Obes relat metab disord 1998;22:127-34. CR - eckel rH, krauss rm. American heart associa- tion call to action: obesity as a major risk factor for coronary heart disease. AHA nutrition Committee. Circulation 1998;97:2099-100. CR - Conlan mG, Folsom Ar, Finch A, davis Ce, Sorlie P, marcucci G, et al. Associations of factor VIII and von Willebrand factor with age, race, sex, and risk fac- tors for atherosclerosis. The Atherosclerosis risk in Communities (ArIC) Study. Thromb Haemost 1993; 70:380-5. CR - de Pergola G, de mitrio V, Sciaraffia m, Pannacciulli n, minenna A, Giorgino F, et al. lower androgenicity is associated with higher plasma levels of prothrom- botic factors irrespective of age, obesity, body fat dis- tribution, and related metabolic parameters in men. metabolism 1997;46:1287-93. CR - Folsom Ar, Wu kk, rosamond Wd, Sharrett Ar, Chambless le. Prospective study of hemostatic fac- tors and incidence of coronary heart disease: the Atherosclerosis risk in Communities (ArIC) Study. Circulation 1997;96:1102-8. CR - Giltay eJ, elbers Jm, Gooren lJ, emeis JJ, kooistra T, Asscheman H, et al. Visceral fat accumulation is an important determinant of PAI-1 levels in young, nonobese men and women: modulation by cross-sex hormone administration. Arterioscler Thromb Vasc Biol 1998;18:1716-22. CR - lyon CJ, Hsueh WA. effect of plasminogen activator inhibitor-1 in diabetes mellitus and cardiovascular disease. Am J med 2003;115 Suppl 8A:62S-68S. CR - Vague P, raccah d, Scelles V. Hypofibrinolysis and the insulin resistance syndrome. Int J Obes relat metab disord 1995;19 Suppl 1:S11-5. CR - eliasson mC, Jansson JH, lindahl B, Stegmayr B. High levels of tissue plasminogen activator (tPA) antigen precede the development of type 2 diabetes in a lon- gitudinal population study. The northern Sweden mOnICA study. Cardiovasc diabetol 2003;2:19. CR - kockx m, leenen r, Seidell J, Princen Hm, kooistra T. relationship between visceral fat and PAI-1 in overweight men and women before and after weight loss. Thromb Haemost 1999;82:1490-6. CR - Thögersen Am, Jansson JH, Boman k, nilsson Tk, Weinehall l, Huhtasaari F, et al. High plasminogen activator inhibitor and tissue plasminogen activator levels in plasma precede a first acute myocardial infarction in both men and women: evidence for the fibrinolytic system as an independent primary risk factor. Circulation 1998;98:2241-7. CR - lowe Gd, Yarnell JW, Sweetnam Pm, rumley A, Thomas HF, elwood PC. Fibrin d-dimer, tissue plas- minogen activator, plasminogen activator inhibitor, and the risk of major ischaemic heart disease in the Caerphilly Study. Thromb Haemost 1998;79:129-33. CR - Ziccardi P, nappo F, Giugliano G, esposito k, marfella r, Cioffi m, et al. reduction of inflamma- tory cytokine concentrations and improvement of endothelial functions in obese women after weight loss over one year. Circulation 2002;105:804-9. CR - Wellen ke, Hotamisligil GS. Obesity-induced inflam- matory changes in adipose tissue. J Clin Invest 2003;112:1785-8. CR - Chan JC, Cheung JC, Stehouwer Cd, emeis JJ, Tong PC, ko GT, et al. The central roles of obesity- associated dyslipidaemia, endothelial activation and cytokines in the metabolic Syndrome-an analysis by structural equation modelling. Int J Obes relat metab disord 2002;26:994-1008. CR - Bastard JP, Jardel C, Bruckert e, Blondy P, Capeau J, laville m, et al. elevated levels of interleukin 6 are reduced in serum and subcutaneous adipose tissue of obese women after weight loss. J Clin endocrinol metab 2000;85:3338-42. CR - Pradhan Ad, manson Je, rifai n, Buring Je, ridker Pm. C-reactive protein, interleukin 6, and risk of developing type 2 diabetes mellitus. JAmA 2001; 286:327-34. CR - ridker Pm, rifai n, Stampfer mJ, Hennekens CH. Plasma concentration of interleukin-6 and the risk of future myocardial infarction among apparently healthy men. Circulation 2000;101:1767-72. CR - Hotamisligil GS. The role of TnFalpha and TnF receptors in obesity and insulin resistance. J Intern med 1999;245:621-5. CR - Yki-Järvinen H. role of insulin resistance in the pathogenesis of nIddm. diabetologia 1995;38:1378- 88. UR - https://dergipark.org.tr/tr/pub/bmj/article/49921 L1 - https://dergipark.org.tr/tr/download/article-file/42588 ER -