AIM: To assess the degree of oxidative damage during acute myocardial infarction and reperfusion, and to clarify the protective effect of Tongxinluo in mini-swine model. METHODS: Thirty mini-swines were randomized into 5 study groups: sham group, model group, low dose (0.05 g·kg~(-1)·d~(-1)), medium dose (0.2 g·kg~(-1)·d~(-1)) and high dose (0.5 g·kg~(-1)·d~(-1)) of Tongxinluo groups (pretreated with Tongxinluo for 3 d). Animals except in sham group were subjected to 3 h of coronary occlusion followed by 1 h of reperfusion. Concentrations of total antioxidative capability (T-AOC), total superoxide dismutase (T-SOD), reduced glutathione (GSH) and malondialdehyde (MDA) in blood sample and the myocardium were measured. RESULTS: (1) T-AOC, T-SOD and GSH in serum significantly decreased (all P<0.05), while MDA significantly increased (P<0.01) at 3 h after AMI in comparison with those at baseline. Compared to those at 3 h after AMI, the contents of T-AOC, T-SOD and GSH at 1 h after reperfusion significantly decreased (all P<0.01), accompanied by increase of MDA (P<0.01). (2) Compared to those in normal area, levels of T-AOC, T-SOD and GSH in reperfusion myocardium decreased significantly (all P<0.01) and MDA increased significantly (P<0.01). T-AOC, T-SOD and GSH in no-reflow myocardium further decreased (all P<0.01) and MDA increased (P<0.01) as compared to those in reperfusion myocardium. (3) Compared to model group, medium dose of Tongxinluo increased the contents of T-AOC and T-SOD and reduced MDA production in serum at 3 h after AMI (all P<0.05), while medium dose of Tongxinluo increased T-SOD level at 1 h after reperfusion (P<0.05). High dose of Tongxinluo increased the levels of T-AOC and T-SOD and decreased MDA content in serum at 3 h after AMI and 1 h after reperfusion (all P<0.05). (4) The medium dose of Tongxinluo increased T-AOC content (P<0.05) and reduced MDA (P<0.05) in reperfusion myocardium, while high dose of Tongxinluo increased T-AOC, T-SOD and GSH (all P<0.05), reduced MDA (P<0.01) in reperfusion myocardium, and also increased T-AOC, T-SOD (all P<0.05), reduced MDA (P<0.01) in no-reflow area as compared to those in model group. CONCLUSION: Impairment of antioxidant defense system in vivo and imbalance of redox homeostasis in myocardium region might play an important role in the pathogenesis of no-reflow after myocardial acute infarction following reperfusion. Tongxinluo protects myocardium from reperfusion injury by improving antioxidant defense and attenuating oxidative damage.

By consulting the relevant literature and historical herbal literature,the name,origin and harvesting,efficacy and indications,as well as nature,taste,and meridians of Bunge pricklyash seed were reviewed."Jiaomu"as a medicinal herb name was first recorded in the"Compendium of Materia Medica Annotations",and later generations also used"Jiaomu"as a proper name.Bunge pricklyash seeds are the seeds of the Rutaceae plant Sichuan Bunge pricklyash seed or green Bunge pricklyash seed.They are harvested when they mature in autumn from August to October,and can be processed by net,stir-frying or salt.It can promote diuresis and reduce swelling,treat kidney deficiency and tinnitus,and is mainly used to treat bloating in the abdomen.It is non-toxic or slightly toxic.This article traced the origin of Bunge pricklyash seed,studied the history of medicine,clarified the original traditional Chinese medicine properties of Bunge pricklyash seed,and provided scientific basis for the correct clinical use and the national formulation of quality standards for this herb.

To effectively introduce and utilize global advanced educational resources, the implementation of Chinese-foreign joint education program in medical universities and the establishment of an internal quality assurance system with Chinese characteristics and substantially equivalent to international standards of medical education is crucial for improving the quality of Chinese medical talent cultivation and achieving high-quality development of education opening up to the outside world in the new era. Using the Chinese-Foreign Joint Education Program jointly run by Chongqing Medical University and University of Leicester as an example, this paper proposes a plan for the development of an internal quality assurance system with three core indicators of management mechanism, team building, and student services. This plan provides experience and a reference for domestic universities to carry out cross-border medical education and improve the quality and efficiency of Chinese-foreign joint education programs.