LEVEL OF GLYCATION END PRODUCTS AND GALACTIN-3 IN PATIENTS WITH CHRONIC HEART FAILURE AND ATRIAL FIBRILLATION IN DEPENDENCE ON THE AGE AND RENAL FUNCTIONAL
Authors: Kuryata Olexander , Muhammad Muhammad , Mytrokhina Olga 
Published: May 2018

Aim. To analyze the changes of advanced glycation end products (AGE) and galectin-3, their relationship in patients with chronic heart failure (CHF) and atrial fibrillation (AF), depending on the renal functional and age.

Material and methods. 30 patients with CHF II-III FC according to the classification of the New York Heart Association (NYHA) with preserved systolic function were examined (EF >45 %, mean 58.73 [45.38, 88.00] %), mean age 66.86 [46.00, 85.00] years who were on treatment in the Regional Hospital after
I.I. Mechnikov. Men accounted for 60 % (18 people), women - 40 % (12 people). All patients were with AF: 17 (56.7 %) - with a permanent form, 13 (43.3 %) - with persistent. The serum creatinine level was determined and the GFR was calculated by CKD-EPI. The level of galectin-3 in the blood was determined by immunofermentive analis using the “Human Galectin-3 Platinum ELISA” kit (GmbH, Austria) on the Stat Fax 2100 (USA) immunofermentive plate analyzer. The fluorescent AGEs in plasma were analysed by quantitative autofluorescence (fluorimeter Hoefer DQ 2000, USA) with fixed spectrum of excitation at 460 nm with 20 % quinine solution as a standard with results expressed with conversion to glycated albumin.

Results. AGE (mean 1.579 [0.884, 2.796]) and galectin-3 (mean 8.542 [2.72, 17.73]) levels increased in 83.3 % (25 patients) and 23.3 % (7 patients) respectively. The level of galectin-3 increased with age (by 33.18 %, p<0.05), while the level of AGE did not have significant changes. Levels of AGE and galectin-3 increased with a decrease in GFR (by 18.9 %, p<0.05 and 18.44 %, p<0.05, respectively). The level of AGE and serum creatinine correlated to GFR (r=0.25, p<0.05 and r=-0.22, p<0.05, respectively), while the level of galectin-3 correlated to GFR (r=-0.16, p<0.05). Intake of irbesartan reduced the level of galectin-3 (by 21.66 %) and AGE (by 4.9 %). The level of serum creatinine was decreased (by 4.89 %) and GFR was increased (by 6.3 %) compared with the intake of ACE inhibitors (by 2.9 % and 1.02 %, respectively).

Discussion. The results showed changes in AGE with a decrease in GFR in patients with CHF and AF, which makes it possible to consider AGE, as a marker of cardiorenal syndrome and makes it promising to further study it. Galectin-3 showed itself not only as a diagnostic marker, but also as a dynamic (positive effect of using irbesartan). Irbesartan had comparable clinical efficacy with ACE inhibitors in patients with CHF and AF.

Conclusions. Among patients with CHF and AF, the level of AGE was increased 83.3 % of patients, galectin-3 - in 23.3 %. Depending on the age, priority was given to galectin-3 (an increase of 33.18 %, p<0.05). The levels of AGE and galectin-3 depends of GFR and were increased (by 18.9 % and 18.44 %, p <0.05 respectively). The use of irbesartan showed a more significant positive effect on the level of galectin-3 and AGE with GFR in the range <60≥30 ml/min/1.73 m2.