Mice[1]
Male Kunming mice (KM, weighing 35-40 g) are maintained on standard laboratory conditions with free access to water and food. Mice are randomly divided into five groups: vehicle control group (CON, 0.9% saline, n=10), scopolamine group (SCOP, n=10), low dose Sodium Tanshinone IIA sulfonate group (Sodium Tanshinone IIA sulfonate L, SCOP 3 mg/kg + Sodium Tanshinone IIA sulfonate 10 mg/kg, n=10), high dose Sodium Tanshinone IIA sulfonate group (Sodium Tanshinone IIA sulfonate H, SCOP 3 mg/kg + Sodium Tanshinone IIA sulfonate 20 mg/kg, n=10), and Donepezil group (DON, SCOP 3 mg/kg + ARI 3 mg/kg, n=10). Mice are treated with saline, Sodium Tanshinone IIA sulfonate, and Donepezil, respectively, by gavage, once per day for two weeks. SCOP is injected from the eighth day for one week (intraperitoneally, IP). The SCOP is injected 0.5 h before the Morris water maze test.
Rats[2]
Male Sprague-Dawley rats (200-250 g) are randomly divided into four groups by the random number table: 1) normoxia control group, 2) normoxia + Sodium Tanshinone IIA sulfonate group, 3) hypoxia control group, and 4) hypoxia + Sodium Tanshinone IIA sulfonate group. Groups 1 and 2 are placed in normoxic condition and groups 3 and 4 in a hypoxic cabin with normal pressure, as previously reported, where the oxygen concentration is maintained at 10±1%, in a sustained hypoxic condition for 21 days. Groups 2 and 4, starting from the first day of hypoxia, are, respectively, intraperitoneally injected with 30 mg/kg tanshinone IIA sulfonate; meanwhile, groups 1 and 3 receive the same dose of saline.
Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.