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Öğe The correlation between adiposity and adiponectin tumor necrosis factor ?, interleukin-6 and high sensitivity C-reactive protein levels.: Is adipocyte size asssociated with inflammation in adults?(Springer, 2007) Bahceci, M.; Gokalp, D.; Bahceci, S.; Tuzcu, A.; Atmaca, S.; Arikan, S.Objective: Hypertrophic obesity correlates with metabolic complications of obesity. We evaluated adipocyte volume and its relationship with tumor necrosis factor ct (TNF-ct), interleukin-6 (IL-6), adiponectin and high sensitivity C-reactive protein (hs-CRP) levels. Subjects and methods: Patients were divided into 4 groups; lean healthy controls [body mass index (BMI): 24.2 +/- 1.4 kg/m(2)], non-diabetic obese patients (30.2 +/- 2.9), obese (30.1 +/- 3.2) and non-obese (22.2 +/- 11.5) Type 2 diabetic patients. TNF-a., hs-CRP, adiponectin and IL-6 levels were measured preoperatively and sc fat specimens were obtained during operation. Semi-thin sections were stained with toluidine-blue and evaluated by light microscopy. Fat volumes were calculated by Goldrick's formulation. Results: Mean adipocyte volumes were higher in obese diabetic patients than in other groups (p<0.0001). Mean TNF-alpha, hs-CRP and IL-6 levels were higher in obese diabetic patients than in control subjects, obese non-diabetic and non-obese diabetic patients (p<0.0001, p<0.02 and p<0.01, respectively). Mean TNF-alpha levels of non-diabetic obese patients were higher than the control group (p<0.05). Mean IL-6 levels of diabetic and non-diabetic obese patients were higher than control subjects (p<0.02 and p<0.0001, respectively). Mean adiponectin levels of control subjects were higher than non-diabetic obese, non-obese diabetic and obese-diabetic subjects (p<0.0001). Mean adiponectin levels of obese diabetic patients were lower than non-diabetic obese subjects (p<0.008). Mean hs-CRP levels were higher in diabetic patients whether they were obese or not. There was a positive correlation between adipocyte size and TNF-a. (p<0.01), IL-6 (p<0.03) and hs-CRP levels (p<0.004), and negative correlation between adipocyte size, adiponectin levels (p<0.0001). Conclusions: TNF-cc, IL-6 and hs-CRP levels were positively, adiponectin negatively correlated with adipocyte size. Therefore, adiposity may be an inflammatory condition.Öğe The effect of periodontal therapy on serum TNF-? and HbA1c levels in type 2 diabetic patients(Wiley, 2009) Dag, A.; Firat, E. T.; Arikan, S.; Kadiroglu, A. K.; Kaplan, A.Background: To determine the effect of non-surgical periodontal therapy on serum TNF-alpha and HbA1c levels in poorly and well-controlled type 2 diabetic patients. Methods: In total, 45 patients were enrolled in the study; 30 patients with type 2 diabetes mellitus with periodontitis (15 with poorly controlled diabetes, HbA1c >= 7%, group 1A and 15 with well-controlled diabetes, HbA1c < 7%, group 1B) and 15 patients that were systemically healthy with periodontitis (group 2). The plaque index, gingival index, probing depth, clinical attachment loss, gingival bleeding index, HbA1c value, and circulating TNF-alpha concentration were measured at baseline and three months after the non-surgical periodontal therapy. Results: All periodontal parameters and serum TNF-alpha levels were significantly decreased three months after the nonsurgical periodontal therapy compared to the baseline values in all groups. The HbA1c values were significantly decreased only in well-controlled diabetic patients. We found no significant differences in the periodontal parameters or TNF-alpha levels at baseline and after three months between the two groups. Conclusions: Although non-surgical periodontal therapy eliminates local/systemic infection and inflammation via decreases in TNF-alpha, it is insufficient for significantly reducing HbA1c levels without strict glycaemic control in poorly controlled diabetic patients in a short time period.Öğe N-terminal pro-brain natriuretic peptide in newly diagnosed acromegaly(Editrice Kurtis S R L, 2010) Arikan, S.; Bahceci, M.; Tuzcu, A.; Gokalp, D.Introduction and aim: The mechanisms of acromegalic cardiomyopathy are not clearly understood. Brain natriuretic peptide (BNP) and N-terminal fragment of its pro-hormone (NT-proBNP) are released by the cardiac ventricles and increase in heart failure. In the present study, we aimed to evaluate serum NT-proBNP levels in acromegalic patients and determine a relationship between NT-proBNP levels and echocardiographic parameters. Subjects and methods: Twenty-two newly diagnosed acromegalic patients [mean age 38.85 +/- 11.06 yr; body mass index (BMI): 28.51 +/- 3.48 kg/m(2)] and 26 age- and BMI-matched healthy control subjects (mean age 32.9 +/- 12.6 yr; BMI: 26.2 +/- 5.3 kg/m2) were included in the study. Standard oral glucose tolerance test (OGTT) was performed. Serum NT-proBNP and GH were measured at the beginning of the OGTT (0 min). Body fat analyses were measured by bioelectrical impedance. Echocardiography was used in cardiac evaluations. Results: The mean NT-proBNP level in the acromegalic group was not significantly different from the control subjects (55.89 +/- 46.64 pg/ml in acromegaly vs 28.76 +/- 22.13 pg/ml in control subjects). There were no correlations between the serum NT-proBNP, GH, and IGF-I levels. Echocardiography revealed significantly increased left ventricular end-diastolic diameter (p=0.008), interventricular septum thickness (p=0.009), left atrium (p=0.029), and right ventricle diameter (p=0.027) in the acromegalic group. Conclusion: NT-proBNP levels were found to be slightly higher in acromegalic patients as an indicator of heart failure, but the increase was not statistically significant. Although these cardiac structural changes in newly diagnosed acromegalic patients are present, the normal level of NT-proBNP shows that NT-proBNP may not be a good indicator in acromegaly. (J. Endocrinol. Invest. 33: 571-575, 2010) (C) 2010, Editrice KurtisÖğe Resistin may not associate with gestational diabetes mellitus although insulin resistance(I R O G Canada, Inc, 2011) Akdeniz, N.; Kuyumcuoglu, U.; Kale, A.; Arikan, S.; Kale, E.; Erdemoglu, M.Objective: Resistin is a potent regulator of glucose homeostasis which is thought to oppose the action of insulin in peripheral tissues. The aim of this study was to determine changes in resistin levels in gestational diabetes mellitus (GDM). Material and Method: Twenty women with GDM (mean age 32.28 +/- 5.01 years old, and gestational age 32.2 +/- 4.8 weeks) matched with 22 non diabetic pregnant women (NGDM) (mean age 30.30 +/- 4.5 years old, and gestational age 34.8 +/- 3.5 weeks) were included in the study. Body mass index (BMI) was calculated. Serum resistin levels were measured and insulin resistance was calculated with HOMA-IR. The Mann Whitney U test was used for statistical analysis. Results: BMI was 33.8 +/- 6.2 kg/m(2) in the GDM group and 28.4 +/- 6.2 kg/m(2) in the NGDM group (p = 0.04). Serum resistin levels were 8.7 +/- 2.1 ng/ml in the GDM group and 8.1 +/- 2.5 ng/ml in the NGDM group. Mean resistin level was not different between the two groups. HOMA-IR in GDM was higher than in the NGDM group (13.2 +/- 12.2 vs 5.8 +/- 5.1, p = 0.02, respectively). Conclusion: Although mean BMI in GDM was higher than in NGDM and insulin resistance in GDM was more marked than in NGDM, serum resistin levels in GDM were not found to be any different from NGDM.
