1.Thoughts on the Construction and Sustainable Development and Utilization of Germplasm Resources of Chinese Medicinal Herbs
Chinese Journal of Information on Traditional Chinese Medicine 2015;(6):5-8
This article analyzed the construction, experience and enlightenment of agriculture and forestry germplasm resources and TCM production and marketing bases based on current situation of construction of germplasm resources of Chinese medicinal herbs and market demand for high-quality Chinese medicinal herbs. It proposed that systems should be established first;plans should be improved;work division should be scientific;staple Chinese medicinal herbs demanded by the society should be set as focus;species should be set as basic units. Germplasm resource collection, quality identification and improved variety breeding should be carried out simultaneously, with a purpose to provide references for the construction and exploitation and utilization of TCM germplasm resources.
2.Curative effect analysis of D2 lymphadenectomy for distal gastric cancer with pancreas as the central landmark
Yongcheng WEI ; Tianwei LIANG ; Yi SUN
Journal of Regional Anatomy and Operative Surgery 2013;(6):650-651
Objective To investigate the feasibility and clinical significance of D2 lymphadenectomy for distal gastric cancer in which the pancreas were regarded as the central landmark. Methods 26 patients of advanced distal gastric cancer were performed D2 lymphade-nectomy centered on the pancreas from March 2012 to February 2013. The operation time, amount of bleeding,number of lymph nodes,and postoperative complications were recorded. Results All the 26 patients underwent the operation successfully. The amount of bleeding was 50~200 mL(averagely 110 mL),and the number of lymph nodes which were cleaned was 16~35 (averagely 26). One patient had intra-ab-dominal hemorrhage and one patient had lymphorrhagia after the operation,and they were cured finally. There was no local recurrence,no dis-tant metastasis,and no death case occurred during the follow-up. Conclusion D2 lymphadenectomy for distal gastric cancer with pancreas as the central landmark is safe and feasible, and it is of lower incidence of complications .
3.Establishment of a model of rabbit auricular hematoma and its application
Wenlang WEI ; Hui LIN ; Xuanyu WEI ; Xingxing DI ; Yongcheng LIU
Chinese Journal of Medical Aesthetics and Cosmetology 2012;(5):376-378
Objective To establish a rabbit auricular hematoma model,to observe the process of production and absorption,and to study the location of hematoma and method of its removal Methods Ten health New Zealand rabbits were divided randomly into control group and experimental group.A weight was dropped onto particular locality of auricles 3-6 times until a big hematoma appeared.The pathological processes of hematoma were observed,and the hematoma was formed 1 hour and the hematoma was almost absorbed after 4 days.The drainage experiment was conducted to observe the effect of needle aspiration or incision and drainage on the hematoma.Results All experimen tal auricles formed hematoma.The histopathological study showed that hematoma located between skin and cartilage,did not involve the cartilage.After 4 days,new-formed capillaries and fibroblasts were found,and then hematoma mostly absorbed; fibrous hyperplasia was been found.By cutting the hematoma,the blood clot could be thoroughly removed.Conclusions The auricular hematoma model can be established easily by striking with a heavy weight.Hematoma locates in subcutaneous connective tissue.A large hematoma should be early removed for prevention of auricular deformity.
4.Application of spleen-preserving splenic hilar lymph nodes dissection in radical resection for advanced proximal gastric cancer
Yi SUN ; Tianwei LIANG ; Yongcheng WEI ; Jinghua LI
Journal of Regional Anatomy and Operative Surgery 2014;(1):66-67,68
Objective To investigate the feasibility of spleen-preserving splenic hilar lymph nodes dissection on the radical resection for advanced proximal gastric cancer. Methods Six patients with advanced proximal gastric cancer were performed D2 lymphadenectomy from May 2012 to May 2013 in our hospital. The operation time,bleeding quantity,the number of lymph nodes,postoperative complications were re-corded. Results The surgery was successful. The intraoperative blood loss was 50 ~250 mL,with the average of 120 mL. The number of lymph nodes was 3~9 after the operation with the average of 5. One patient supervened with lymphorrhagia and recovered after treatment. During the follow-up period from one month to one year, no local recurrence and distant metastasis occurred, nor the death. Conclusion Conducting theD2 lymphadenectomy for the patients with the advanced proximal gastric cancer can preserve the spleen while safely and throughly dissect the splenic hilar lymph nodes.
5.Determination of Mannitol and Meglumine in Diterpene Lactones of Ginkgo Injection by HPLC-ELSD
Qinglong WU ; Yongcheng SUN ; Xuefeng LI ; Wei WANG ; Zhenzhong WANG ; Yuan BI ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(9):1985-1989
This study was aimed to develop the method for determination of mannitol and meglumine in diterpene lactones of Ginkgo Injection. The HPLC-ELSD was used to determine mannitol and meglumine in diterpene lactones of Ginkgo Injection. The analysis was carried out on Waters XBridge Amide (4.6 mm í 150 mm, 3.5 μm) column. The mobile phase was the mixture of acetonitrile, and 50 mmol·mL-1 ammonium acetate with a linear gradient elu-tion at a flow rate of 1.0 mL·min-1. The column temperature wad maintained at 30℃. The operating conditions of the ELSD were a nebulizer nitrogen with the flow rate of 2.0 L·min-1 and an evaporator tube at the temperature of 90℃. The results showed that mannitol had a good linear relationship in a range of 1.9665 μg - 19.665 μg. The average recovery rate was 100.57% (RSD = 0.92%, n = 9). The meglumine showed a good linear relationship in a range of 0.4838 μg - 4.638 μg. The average recovery rate was 100.67% (RSD = 0.72%, n = 9). It was concluded that this method was simple and accurate with good reproducibility. It met with the requirement of the determination of the contents of mannitol and meglumine in diterpene lactones of Ginkgo Injection.
6.Screening and Fingerprint Analysis of Active Site to Reduce Blood Lipid from Xin-Mai Capsule
Yinhua DING ; Wei SHI ; Yongcheng SUN ; Xinyong LYU ; Jun ZHOU ; Zhenzhong WANG ; Yuan BI ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(11):2487-2492
This study was aimed to screen main active site to reduce blood lipid from Xin-Mai (XM) capsule and establish HPLC fingerprint of the site, in order to study the correlativity between active site and relevant fractions of its herbs. Solvent extraction was used to separate XM capsule into different polar fractions. Intraperitoneal injection of 75% egg-yolk emulsion was used to establish mice hyperlipidemia models. And the active site was screened. Chromatographic fingerprints of the site and relevant fractions of its herbs were configured by HPLC analysis. The
retention time of peaks was utilized as index to evaluate the correlativity. The results showed that lipid-lowering effect of ethyl acetate extract and garlic essential oil was significant (P<0.01). Fingerprint of the active site in XM capsule was established with 28 fingerprint peaks and the assignment results of 27 peaks were indicated. It was concluded that the active sites to reduce blood lipid of XM capsule were ethyl acetate extract and garlic essential oil. The established fingerprint method can effectively determine the correlativity between the active site and its relevant fractions, which contributed to pharmacodynamic material foundation and quality standard.
7.Investigation on Purification Process of Intermediate Product ofCaulis Sinomenii fromTong-An Injection
Xiaodong KANG ; Xufang YANG ; Feng LI ; Junchao LIU ; Yun WU ; Yongcheng SUN ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(5):1090-1094
This study was aimed to improve the transfer rate of sinomenine in the intermediate product of Caulis Sinomenii in order to optimize the purification process of intermediate product ofCaulis Sinomenii fromTong-An (TA) injection. The transfer rate of sinomenine and the stability of fingerprints in the intermediate product of Caulis Sinomenii were used as indexes for the investigation on the impact from different pH ofCaulis Sinomenii extract before extraction. The transfer rate of sinomenine was used as an index for the investigation on the impact by different pH of hydrochloric acid created to dry extract solution. The transfer rate of sinomenine was used as an index for the investigation of four separation ways, which included the vacuum filtration, plate and frame filters, high-speed tube separator, and flat direct centrifuge, on the liquid separation of sinomenium acutum acid. The results showed that the pH ofCaulis Sinomenii extract before extraction was 10-11; the transfer rate of sinomenine was the highest in the extraction process and the fingerprints of TA injection was stable. The pH of hydrochloric acid was 2.0-2.5; and the highest transfer rate of sinomenine in acid dissolution process was 92.94%. The high-speed tube separator had the best separation to sinomenium acutum acid-dissolving liquid. The highest transfer rate of sinomenine was 93.34%. It was concluded that the optimized process can effectively improve the transfer rate of sinomenine in the intermediate product ofCaulis Sinomenii. Meanwhile, fingerprints of the product were stable. The process was simple with good repeatability.
8.Determination of Five Heavy Metals in Chuanxiong Rhizoma and Gastrodiae Rhizoma by ICP-MS
Dawen XIE ; Yuanpei LIAN ; Wenlin LIANG ; Gang DING ; Yongcheng SUN ; Yanjing LI ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;17(3):740-743
This article is aimed to provide a method for the simultaneous analysis of five heavy metals, including Cu, As, Pb, Cd, and Hg, in Chuanxiong Rhizoma and Gastrodiae Rhizoma through ICP-MS. Five heavy metals were determined by an inductively coupled plasma-mass spectrometry method after microwave-assisted digestion. The linear correlation coefficients were all better than 0.999. The lowest limits of quantification for all target elements were 0.003 0.134 ug·L-1, while the recovery values ranged from 80.04% 118.34%. This method was accurate, convenient, rapid, and highly sensitive, and can be applied to determine five heavy metals, including Cu, As, Pb, Cd, and Hg in Chuanxiong Rhizoma and Gastrodiae Rhizoma.
9.Determination of Macroporous Resin Residues in Ginkgo Leaf Tablets by Headspace Capillary Gas Chromatography
Wenlin LIANG ; Gang DING ; Yongcheng SUN ; Yanjing LI ; Junping KOU ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(8):1772-1776
This study was aimed to establish the determination method of nineorganic solvent residues of macrop-orous resin. Headspace capillary gas chromatography (GC) was used in the content determination of hexane, benzene, methyl-benzene, o-xylene, m-xylene, p-xylene, styrene, diethyl-benzene and divinyl-benzene of macroporousresin residues in Ginkgo leaf tablets. The results showed that ninemacroporous resin residues in Ginkgo leaf tablets were completely separated. The calibration curves were in good linearity (r=0.9992-0.9998). The average recoveries were 80%-110%. It was concluded that themethod was accurate, quick, and sensitive, which can be used to determine the macroporous resin residues in Ginkgo leaf tablets.
10.Optimization of Ethanol Extraction Technology forXiao-Xu-MingDecoction by Orthogonal Design with Multi-target
Renjie WANG ; Enli ZHOU ; Miao LI ; Jianping QIN ; Yun WU ; Yongcheng SUN ; Guanhua DU ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(9):1795-1800
This study was aimed to optimize the ethanol extraction technology ofXiao-Xu-Ming (XXM) decoction. The extraction rates of paeoniflorin, ferulic acid, tetrandrine and yield extract were used as comprehensive evaluation indexes. The amount of ethanol, extraction times, extraction time and concentration of ethanol were selected as factors. The orthogonal design was used to optimize ethanol reflux extraction technology of XXM decoction. The results showed that the optimum extraction conditions were as follows: refluxing extracted 3 times with 10 folds, 70% ethanol, 1.5 h for each time. It was concluded that the optimized extraction process was objective, practical, reasonable and stable, which provided experimental basis for industrial production of XXM decoction.