Effect of heparin on the expressions of serum intercellular adhesion molecule-1 and hippocampus S100β protein after cardiopulmonary resuscitation in rabbits

Abstract

ObjectiveUse heparin during cardiac arrest (CA) in rabbits and observe the serum intercellular adhesion molecule-1 (ICAM-1) and hippocampal S100β protein expressions after cardiopulmonary resuscitation (CPR).MethodsThirty-two New Zealand rabbits were randomly divided into, Group I, control group; Group II, saline group; Group III, heparin group. Each animal underwent continuous hemodynamic monitoring including mean arterial pressure (MBP), heart rate (HR), and the end-tidal carbon dioxide partial pressure (PetCO2). Twenty-four hours after resuscitation, serum and hippocampal neurons were collected from all animals. Enzyme linked immunosorbent assay was used to detect serum ICAM-1 and immunohistochemistry to detect the S100β protein in hippocampal neurons. According to the rate of positive cells, each hippocampal specimen was categorized into four expression levels.ResultsThe differences in the serum ICAM-1 concentration in the three groups were statistically significant. The expression of S100β protein in...