The International Journal of Romanian Society of Endocrinology / Registered in 1938

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  • Endocrine Care

    Kacso IM, Lenghel A, Rusu CC, Rahaian R, Nita C, Craciun M, Luculescu N, Negru D, Hancu N, Bondor CI, Gherman Caprioara M

    Determinants of plasma adiponectin levels in patients with type 2 diabetes mellitus and microalbuminuria or low grade proteinuria

    Acta Endo (Buc) 2010 6(2): 181-189 doi: 10.4183/aeb.2010.181

    Background. Recent experimental data show that increased plasma adiponectin in chronic kidney disease could be a response to inflammation.\r\nObjective. To identify factors influencing adiponectinemia in patients with type 2 diabetes (T2DM) and microalbuminuria or low grade proteinuria.\r\nDesign. 32 patients with urinary albumin excretion rate (UAER)> 30 mg/g creatinine but without significant proteinuria (< trace COMBUR) were included and compared to 59 normalbuminuric T2DM controls. History, anthropometric measurements, laboratory analysis, total plasma adiponectin were obtained.\r\nResults. In our patients with UAER of 273.51?57.26 mg/g creatinine and estimated glomerular filtration rate (eGFR) 64.92?4.56 mL/min, in simple regression, adiponectinemia\r\ncorrelates inversely to eGFR (p=0.02, r= -0.38), triglyceridemia (p=0.03, r=-0.37) and hemoglobin\r\n(Hb -p= 0.01, r=-0.45) and positively to HDL cholesterol (p=0.001, r=0.54) and UAER (p<0.0001, r=0.71); the two latter parameters remain significant in multiple regression. In controls, adiponectinemia correlates inversely to age (p=0.04, r=-0.26) and BMI (p=0.04, r=-0.24); these and UAER predict adiponectinemia in multiple regression. 11 patients have UAE superior to 300 mg/g creatinine and 21 are strictly microalbuminuric (mean UAER 653.16?97.02 and 83.68?10.28mg albumin/g creatinine respectively). In microalbuminuric patients serum C reactive protein (CRP) correlates positively (p=0.0008, r=0.68) and Hb negatively (p=0.04, r=-0.41) to adiponectinemia; in multiple regression adiponectinemia only depends on CRP. In proteinuric patients CRP and\r\nglycated Hb correlate to adiponectinemia in stepwise multiple regression.\r\nConclusion. Adiponectinemia is mainly predicted by UAER in our cohort whereas it depends on age and BMI in normalbuminuric T2DM controls; in strictly microalbuminuric\r\npatients CRP is a major predictor of adiponectinemia.
  • Endocrine Care

    Orasan R, Awon R, Racasan S, Patiu IM, Samasca G, Kacso IM, Gherman Caprioara M

    Effects of L-Carnitine on Endothelial Dysfunction, Visfatin, Oxidative Sterss, Inflammation and Anemia in Hemodialysis Patients

    Acta Endo (Buc) 2011 7(2): 219-228 doi: 10.4183/aeb.2011.219

    Background Supplementation of Lcarnitine is associated with improvement in some abnormalities present in hemodialysis (HD) patients. Objective. The study aim was to analyze the effect of oral L-carnitine supplementation on endothelial dysfunction (ED), oxidative stress (OS), inflammation and anemia in HD patients. Design. A prospective, longitudinal and observational study was performed in a single dialysis unit. Subjects and methods.We studied 31 HD patients: 21 patients formed the Lcarnitine supplementation group (group 1) and 10 entered the control group (group 2). At baseline and after 3 months of L-carnitine supplementation (500mg/day) we determined endothelial-dependent flow-mediated vasodilatation (FMD) and nitroglycerin induced endothelium independent vasodilatation, involving ultrasonographic brachial artery measurements, serum visfatin, malondialdehyde, body mass index, systolic blood pressure, diastolic blood pressure, interdialytic body weight gain, C-reactive protein, albumin, cholesterol, HDL-cholesterol, LDL-cholesterol, triglycerides, ferritin, transferrin saturation, hemoglobin, erythropoietin dose, calcium (Ca), phosphorus (P), parathormone and Kt/V . Results. In group 1, FMD (8.9 (4.5-12.5) to 10.6 (6.7-18), p=0.04) and Ca (8.4±0.6 to 8.8±0.5 mg/dL, p<0.001) significantly increased after L-carnitine supplementation, while visfatin (1.0 (0.2-1.3) to 0.4 (0-0.9) pg/mL, p=0.03), malondialdehyde (2.8 (2.4- 3.2) to 1.3 (1.2-1.5) nmol/mL, p<0.001) and P (5.6±1.3 to 5.0±1.2 mg/dL, p=0.005) significantly decreased. Albumin increased significantly in both groups (3.9±0.3 to 4.2±0.3 mg/dL, p<0.001 in group 1 and 3.7±0.3 to 4.0±0.3 mg/dL, p=0.02 in group 2). There were no other significant variations of the studied parameters. Conclusions. L-carnitine supplementation reduces ED, visfatin levels and markers of OS, but has no effect on inflammation, nutrition and anemia in HD patients.