Levels of Serum and Urine Catecholaminergic and Apelinergic System Members in Acute Ischemic Stroke Patients

Abstract

Objective: To compare levels of catecholaminergic system members, renalase, cerebellin, and their substrates, epinephrine, norepinephrine, and dopamine, and apelinergic system members, apelin, elabela, and nitric oxide in the blood and urine of patients with acute ischemic stroke and healthy controls. Materials and Methods: 42 patients with acute ischemic stroke and 42 age and sex-matched healthy controls were included in the study. Blood and urine samples were collected simultaneously and within the first 24 hours after the onset of acute stroke clinical manifestations and were measured using an ELISA method. Results: The levels of serum and urine cerebellin, renalase, epinephrine, norepinephrine, dopamine, apelin, elebela, and nitric oxide were similar in ischemic stroke and in control groups (P>0.05). Strong correlations were found between renalase, cerebellin, and catecholamine levels in serum and urine (p <0.001) both in stroke patients and controls. There were also strong correlations between apelin, elabela, and NO levels in serum and urine (p <0.001) in the two groups. Conclusion: Serum and urine cerebellin, renalase, epinephrine, norepinephrine, dopamine, apelin, elebela, and nitric oxide levels do not significantly change in the acute phase of ischemic stroke. Strong correlations among renalase, cerebellin, and catecholamines emphasize that these substances act together in healthy individuals and ischemic stroke patients. Similarly, strong correlations between apelin, elabela, and NO indicate that these agents act together in healthy subjects and patients with ischemic stroke.