Effects of intracoronary or intravenous tirofiban administration in patients with acute ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention / 中华心血管病杂志

<p><b>OBJECTIVE</b>To compare the effects on MACE of intracoronary or intravenous tirofiban bolus administration in patients with acute ST-elevation myocardial infarction (STEMI).</p><p><b>METHODS</b>A total of 60 consecutive STEMI patients ready to receive primary PCI were randomly assigned to intracoronary tirofiban bolus (10 microg/kg) prior to the first balloon inflation (Group IC) or to intravenous tirofiban bolus at the same dose prior to coronary angiography (Group IV), followed by a 36-hours IV tirofiban (0.15 microg . kg(-1) . min(-1)) infusion for all patients. Clinical and angiographic features between 2 groups before and after PCI were analyzed.</p><p><b>RESULTS</b>Fifty-four out of 60 STEMI patients accomplished the study. Group IC was superior to Group IV in terms of TIMI flow grade, TIMI myocardial perfusion grade, ST-segment resolution, the distal embolism of IRA immediately after PCI and ejection fraction at 5 - 7 days after the PCI. The in-hospital MACE rate and bleeding complications were similar between the groups while, the combined incidence of MACE during follow-up was significantly lower in the Group IC compared with Group IV (7.1% versus 30.8%; P = 0.02).</p><p><b>CONCLUSION</b>Intracoronary bolus application of tirofiban is associated with superior clinical prognosis compared with the standard intravenous bolus application of tirofiban in patients with STEMI undergoing primary PCI.</p>

Determination of gentiopicroside in different morphological types of cultivated Gentiana manshurica population / 中国中药杂志

<p><b>OBJECTIVE</b>To study the correlation between morphological variation and gentiopicroside content in cultivated Gentiana manshurica roots and to investigate the feasibility of breeding new varieties of high effective constituent content.</p><p><b>METHOD</b>Gentiopicroside was determined in 5 morphological types of cultivated G. manshurica roots by HPLC, which are normal (or wild) type, white-flowered type, thick-rooted type, broad-leaved type I and broad-leaved type II.</p><p><b>RESULT</b>Among different types gentiopicroside content is the highest in the roots of thick-rooted type, the contents decrease as following order: normal type, broad-leaved type I white-flowered type and broad-leaved type II, and the gentiopicroside contents in the same type root system are a positive correlation with root ages, as 3-years-age roots > 2-years-age roots > 1-year-age varied with roots.</p><p><b>CONCLUSION</b>The contents of effective constituent vary with the morphological variation in cultivated G. manshurica. It is feasible to breed a new variety with high effective constituent with the morphological character as a selecting index.</p>