Primary study of skin wound healing in rats for Loropetalum chinens / 中国中药杂志

<p><b>OBJECTIVE</b>Cutaneous wound is a common health problem of humans. Loropetalum chinens, a medicinal plant, is widely used to treat wounds among the people. The research aims to observe whether L. chinens can promote the rats' wounds healing process, isolate the extracts primarily and commit the wound healing selection, which provide work basis for wound healing research of L. chinens.</p><p><b>METHOD</b>First we analyzed the possible components with HC-MS/MS, then committed our wound healing experiments for L. chinens in the rat incision wound model and excision wound model, which are commonly used worldwide. After that, we carried on the preliminary isolation of the L. chinens and we screened the heal-promoting effects of the isolations in incision wound model.</p><p><b>RESULT</b>L. chinens significantly accelerates the wound healing of rat's skin, shortens the healing period, enhances the healing intensity and promotes the cell proliferation and blood vessels formation around the wounds. The isolations, which are petroleum ether layer, ethyl acetate layer and n-butyl alcohol layer, exert heal-promoting effects. It indicates that the possible morphon that promotes wound healing may exist in these three components, with small polar.</p><p><b>CONCLUSIONS</b>L. chinens possesses strong wound healing promoting effects, and the active constituent, with small polar, exists in petroleum ether layer, ethyl acetate layer and n-butyl alcohol layer, and we should focus on these three layers when carrying on further studies.</p>

Chemical constituents from roots of Distylium myricoides / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents from the roots of Distylium myricoides.</p><p><b>METHOD</b>The chemical constituents were isolated and separated with chromatographic techniques, and structures were identified by spectroscopic methods.</p><p><b>RESULT</b>Eight phenolic compounds were isolated and identified as: 4-hydroxy-2-methoxyphenol 1-O-beta-D-(6'-O-galloyl) glucopyranoside (1), 4-hydroxy-3-methoxy-phenol 1-O-beta-D-(6'-O-galloyl) glucopyranoside (2), 3,4,5-tri methoxyphenol 1-O-beta-D-(6'-O-galloyl) glucopyranoside (3), 1,2,3,4,6-penta-O-galloyl-beta-D-glucopyranoside (4), methyl gallate (5), ethyl gallate (6), 3,4-dihydroxybenzoic acid (7), gallic acid (8).</p><p><b>CONCLUSION</b>All compounds were isolated from the genus Distylium for the first time.</p>