Objective Study on apoptosis and acid phosphatase(ACP) expression in hippocampal neurons in Rats with Single-prolonged stress(SPS) animal model of PTSD(posttraumatic stress disorder).Methods Establishment of SPS Model in Rat,Materials were gained at the 6h,12h,1d,7d,14d after exposed to SPS.The same to the normal rats for control.Annexin V-FITC/PI double-labeled flow cytometry,transmission electron microscopy and enzyme histochemistry were used to detect the changes of ACP expression and apoptosis quantitat...