Fig. 4From: Gao-Zi-Yao improves learning and memory function in old spontaneous hypertensive ratsNissl staining results in each group. A Representative Nissl-staining of CA1, CA2 and DG area in each group, B Number of neurons at CA1 area in each group, C Number of neurons at CA2 area in each group, D Number of neurons at DG area in each group. n = 6. *P < 0.05 young SHR group compared with young SHR groupBack to article page