Use of a phosphodiesterase 9a inhibitor for preventing and treating ischemic stroke
A technology for ischemic cerebral stroke and phosphodiesterase, applied in the field of medicine, can solve problems such as no PDE9A inhibitor, and achieve the effect of reducing behavioral damage and reducing volume
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Embodiment 1
[0024] Example 1. Effect of LW33 on Acute Cerebral Ischemia in Mice
[0025] (1) Experimental materials
[0026] Experimental animals: 60 SPF grade KM mice, male, weighing 16-20 g, purchased from the Experimental Animal Center of Sun Yat-sen University (permit number: SCXK (Guangdong) 2016-0029), free to eat and drink.
[0027] Main instruments: stopwatch (Shanghai Xingzuan Stopwatch Co., Ltd.), ACS-3H electronic balance (Zhongshan Jinli Electronic Scaling Instrument Co., Ltd.), surgical instruments (Beijing Seinong Technology Co., Ltd.).
[0028] Main reagents: LW33 (School of Pharmacy, Sun Yat-Sen University), Nimodipine Tablets (Guangdong South China Pharmaceutical Group Co., Ltd.), sodium carboxymethylcellulose (Tianjin Zhiyuan Chemical Reagent Co., Ltd.).
[0029] (2) Experimental method
[0030] 60 male KM mice were randomly divided into 5 groups according to weight balance: control group (0 mg / kg), LW33 low dose group (1 mg / kg), LW33 medium dose group (3 mg / kg), LW33 ...
experiment example 2
[0038] Experimental example 2. Effect of LW33 on model mice resistant to normal pressure and hypoxia
[0039] (1) Experimental materials
[0040] Experimental animals: 72 SPF grade KM mice, male, weighing 16-20 g, purchased from the Experimental Animal Center of Sun Yat-sen University (permit number: SCXK (Guangdong) 2016-0029), free to eat and drink.
[0041] Main instruments: stopwatch (Shanghai Xingzuan Stopwatch Co., Ltd.), ACS-3H electronic balance (Zhongshan Jinli Electronic Scaling Instrument Co., Ltd.), 1mL syringe (Jiangsu Zhengkang Medical Instrument Co., Ltd.), surgical instruments (Beijing Seinong Technology Co., Ltd.).
[0042] Main reagents: LW33 (School of Pharmacy, Sun Yat-sen University), Nimodipine Tablets (Guangdong South China Pharmaceutical Group Co., Ltd.), Sodium Carboxymethylcellulose (Tianjin Zhiyuan Chemical Reagent Co., Ltd.), Isoproterenol Hydrochloride Injection (Shanghai He Feng Pharmaceutical Co., Ltd.), soda lime (Tianjin Damao Chemical Reagent F...
Embodiment 3
[0052] Example 3. The acute phase protective effect of LW33 on MCAO model rats
[0053] (1) Experimental materials
[0054] Experimental animals: 48 SPF grade SD rats, male, weighing 200-240 g, purchased from the Experimental Animal Center of Sun Yat-sen University (permit number: SCXK (Guangdong) 2016-0029), free to eat and drink.
[0055] Main instruments: ACS-3H electronic balance (Zhongshan Jinli Electronic Weighing Apparatus Co., Ltd.), LDZ5-2 centrifuge (Beijing Medical Centrifuge Factory), HH-W600 digital display three-purpose constant temperature water tank (Jiangsu Jintan Ronghua Instrument Manufacturing Co., Ltd. Company), 1mL syringe (Jiangsu Zhengkang Medical Devices Co., Ltd.), surgical instruments (Beijing Xinong Technology Co., Ltd.).
[0056] Main reagents: LW33 (School of Pharmacy, Sun Yat-sen University), Nimodipine Tablets (Guangdong South China Pharmaceutical Group Co., Ltd.), sodium carboxymethylcellulose (Tianjin Zhiyuan Chemical Reagent Co., Ltd.), 2% s...
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