Effects of Tongguan Capsule on post-myocardial infarction ventricular remodeling and cardiac function in rats / 中国结合医学杂志

<p><b>OBJECTIVE</b>To observe the effects of Tongguan Capsule (TGC) on post-myocardial infarction ventricular remodeling and heart function in rats.</p><p><b>METHODS</b>A rat model of acute myocardial infarction (AMI) was established by coronary ligation. Experimental rats were randomized to 4 groups including three model groups (Group A: captopril 5 mg/kg * day, n=7; Group B: TGC 10 g/kg * day, n=7; and Group C: placebo, n=8), and a sham-control group (Group D: blank control, n=6). Animals were treated for 4 weeks. The cardiac function of rats was assessed at the end of the experiment based on left ventricular ejection fraction (LVEF) and left ventricular short axis fractional shortening (LVFS) detected by colored echocardiography; meanwhile, the condition of ventricular remodeling was observed through the levels of left ventricular mass (LVM), plasma aldosterone (ALD), myocardial angiotensin II (Ang II) and myocardial collagen measurements.</p><p><b>RESULTS</b>At the end of the experiment, LVEF and LVFS in Group A and B were improved significantly, while those in Group C were unchanged, the LVEF in Group A, B, C, and D was 0.57+/-0.46, 0.61+/-0.08, 0.36+/-0.55 and 0.76+/-0.02, respectively; and their LVFS was 0.31+/-0.52, 0.34+/-0.04, 0.23+/-0.57 and 0.45+/-0.03, respectively. The difference was statistically significant when comparing the two indexes in Group A and B with those in Group C and D (P<0.05). LVM, levels of plasma ALD and myocardial Ang II were lower in Group A and B than in Group C, but a comparison between Group A and B showed an insignificant difference in lowering LVM and ALD, while the lowering of Ang II was more significant in Group B than in Group A (754.7 +/- 18.7 pg/mL vs 952.6+/-17.6 pg/mL, P<0.05). Morphological examination showed that in Group A and B the swollen myocardial cells had shrunk, with regularly arranged myocardial fibers and decreased collagen proliferation, but the improvements in Group B were more significant.</p><p><b>CONCLUSION</b>TGC could markedly improve the post-infarction ventricular remodeling and cardiac function in rats, showing that the efficacy was better than or equal to that of captopril.</p>

Study on changes of TCM syndrome in patients with coronary heart disease before and after intervention treatment / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To observe the changing laws of TCM syndrome type in patients with coronary heart disease (CHD) before and after intervention treatment (IT) and to explore the influence of IT on TCM syndrome type.</p><p><b>METHODS</b>The TCM syndrome type of 71 patients with "Chest-Bi" was differentiated before and after percutaneous coronary intervention (PCI) treatment, of which the most common syndrome types were qi deficiency, yang deficiency, yin deficiency, qi stagnation, blood stasis, phlegm, cold coagulation, heat-syndrome, etc.</p><p><b>RESULTS</b>Before PCI treatment, syndrome types of blood stasis (53 cases, 74.6%), qi deficiency (46 cases, 64.8%), and phlegm (28 cases, 39.4%) were the commonest, while there were 12 cases of qi stagnation (16.9%) and 12 cases of cold coagulation (16.9%); One week after PCI treatment, the most commonly seen types were blood stasis (47 cases, 66.2%), qi deficiency (39 cases, 54.9%) and phlegm (23 cases, 32.4%), while qi stagnation (2 cases, 2.8%) and cold coagulation (1 case, 1.4%) were also found; One month after PCI, qi deficiency (47 cases,85.4%), blood stasis (40 cases,72.7%), phlegm (31 cases, 56.4%) were the most commonly seen types. Comparison of the syndrome types between before and after PCI showed that the syndromes of qi deficiency and phlegm were progressively aggravating, while syndromes of qi stagnation and cold coagulation were alleviated after PCI.</p><p><b>CONCLUSION</b>Although PCI treatment could relieve patients' symptoms of excess in superficiality, it can't radically change the pathogenetic nature of CHD, namely, the deficiency in origin and excess in superficiality, which indicates that one should pay full attention to the importance and necessity of CHD after PCI treatment.</p>