Development of rapid setting-drying device for herbarium specimens and its application in survey of Chinese materia medica resources in Anhui / 中国中药杂志

Herbarium specimens are the basis for the plant classification and indispensable media in teaching, scientific research and resources investigation. They have also played an important role in identifying and producing traditional Chinese medicine. High-quality herbarium specimens shall meet high requirements for integrity, smoothness, color and fabricating efficiency. Therefore, we designed a rapid setting and drying device for herbarium specimens, which could make the herbarium specimens smooth, colorful and not easy to mildew. In this paper, we pointed out the deficiency of traditional methods in making herbarium specimens, and introduced the structure and working principle of the device. Besides, we also discussed the effect of the device in setting and drying herbarium specimens and its application in the fourth national survey of the Chinese material medica resources (CMMR) in Anhui province. As a result, the device provides new ideas for producing herbarium specimens, with a reasonable design, good uniformity, high efficiency, safety and portability, and so is worthy of promotion and application in the national survey of CMMR.

New records of distribution of medical plants in Anhui province / 中国中药杂志

During the fourth national survey of Chinese material medica resources inventory, 9 species of medical plants in Huangshan area of Anhui Province were newly recorded, including Microlepia calvescens, Dryopteris hangchowensis, Fatoua pilosa, Girardinia chingiana, Lecanthus peduncularis, Galium kamtschaticum, Carpesium minus,Cirsium racemiforme, Globba racemosa, which belong to seven families and nine genera. Among these, 3 genera (Girardinia, Lecanthus, Globba) are new geographical distribution in Anhui Province. All of voucher specimens are preserved in ACM. These discoveries enrich the content of flora in Anhui and provide fundamental materials for studying the plants of Anhui.

Historical evolution and development countermeasures of uncommon-territorial herbs / 中国中药杂志

As an important part of Chinese medicinal materials, uncommon-territorial herbs are also the most complex parts in the herbal medicine markets. Through years of investigation on the key markets of Chinese herbal medicine, the meaning of uncommon-territorial herbs, their historical evolution, origin and characteristics were clarified in this paper, and some countermeasures were put forward for its development.

Relationship between Tpeak-Tend interval and coronary artery stenosis and effects of percutaneous transluminal coronary angioplasty on Tpeak-Tend / 南方医科大学学报

<p><b>OBJECTIVE</b>To explore the relationship between Tpeak-Tend interval (Tpe) and the extent and severity of coronary artery stenosis, and evaluate the effect of percutaneous transluminal coronary angioplasty and stent implantation (PCI) on Tpe in the patients with coronary heart disease (CHD).</p><p><b>METHODS</b>The ECG data were collected from 187 CHD patients undergoing coronary angiography and PCI to evaluate the extend and severity of coronary artery stenosis before and after the interventions.</p><p><b>RESULTS</b>The Tpe of patients with severe stenosis increased significantly as compared with that in patients with moderate stenosis (138.9-/+16.2 ms vs 116.5-/+13.7 ms, P<0.05), and a significant difference was also noted between the moderate stenosis and mild stenosis (86.4-/+12.9 ms) groups (P<0.05). The Tpe decreased significantly in the patients in the order of multi-vessel involvement (140.7-/+17.8 ms), double vessel involvement (118.6-/+14.9 ms), singly vessel involvement (100.5-/+13.2 ms), and stenosis-free (84.3-/+12.4 ms) groups (P<0.05). Tpe was correlated to the extent and severity of coronary artery stenosis (r>0.4). In patients with severe stenosis, the Tpe was significantly reduced at 1 h, 24 h, and 1 week after PCI (115.8-/+14.5, 92.7-/+12.9, and 88.2-/+11.3 ms, respectively, P<0.05).</p><p><b>CONCLUSION</b>The Tpe can reflect the severity and range of coronary artery stenosis, which can be reduced by PCI. Tpe can be a new index for evaluating myocardial ischemia in CHD patients.</p>

Clinical assessment of Tpeak-end interval for prediction of myocardial infarction / 南方医科大学学报

<p><b>OBJECTIVE</b>To assess the value of Tpeak-end interval (Tpe) in predicting myocardial infarction (MI).</p><p><b>METHODS</b>Tpe and Tpeak-end internal after correcting the heart rate (TpeRR) were measured and analyzed in 234 MI patients, who were followed-up for an average of 32 ± 10 months.</p><p><b>RESULTS</b>Clinical events occurred in 45 (19.2%) patients at the end TpeRR of the follow-up. Tpe and of the patients with clinical events were significantly higher than those in patients without the clinical events (P < 0.001). The incidence of clinical events in patients with Tpe > 140 ms were significantly higher than that in patients with Tpe ≤ 140 ms by Kaplan-Meier analysis (P < 0.001). With clinical event as the end point, the proportional hazards rate was 2.48 in univariate COX analysis (P < 0.01). After controlling for risk factors, the hazards rate was 2.66 by multvariate COX regression (P < 0.01).</p><p><b>CONCLUSION</b>Tpe is positively correlated to the prognosis of MI and serves as an new index for predicting the clinical events in MI patients.</p>