1.Determination of Strychnine and Brucine in the Decoction of Semen Strychni and Its Different Processed Products
Yihao JIANG ; Jing LI ; Qianfeng GONG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(04):-
Objective HPLC method was used to determine strychnine and brucine in the decoction of Semen Strychni and its processed products of Jiangxi methods and innovated methods.Methods SiO2 was used as the stationary phase,n-hexane∶dichloromethane∶methanol∶ammonia(47.5∶47.5∶5∶0.35) as the mobile phase,with detection wavelength at 254 nm.Result The contents of strychnine and brucine in the processed products of Jiangxi methods and innovated methods were low.The content of that in acetic acid-soaked product scalded with hot sand was the lowest.Conclusion Semen Strychni and its processed products of Jiangxi methods and innovated methods can lower the toxicity and improve the safety of clinical use.
3.Comparison on Intestinal Absorption of Pectolinarin and Pectolinarigenin by Everted Rat Intestinal Sac Method
Qi CHEN ; Feipeng GONG ; Zhaohua LIU ; Lingyun ZHONG ; Qianfeng GONG
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(2):352-357
This article was aimed to study the intestinal absorption about main active ingredients of pectolinarin and pectolinarigenin in Carboned Cirsium japonicum DC. The absorption rate and absorption rate constant were taken as indicators. The intestinal absorption of pectolinarin and pectolinarigenin were compared by everted rat intestinal sac method among different parts of the small intestine. The results showed that the absorption rate constant of pectoli-narin among duodenum, jejunum, ileum and colon parts were 0.505 1 ± 0.192 7, 0.936 0 ± 0.187 2, 0.732 0 ±0.133 5, 0.251 3 ± 0.027 6 (μg·h-1·cm-2). The absorption rate constant of pectolinarigenin among the duodenum, je-junum, ileum and colon were 0.059 1 ±0.008 3, 0.093 3 ±0.029 2, 0.112 3 ± 0.035 6, 0.029 4 ± 0.009 1 (μg·h-1·cm-2). It was concluded that the absorption of both ingredients increased over time. The absorption of both ingredi-ents in the jejunum and ileum was higher than other parts of the small intestine. The absorption rate of pectolinarin in the entire small intestine was much higher than the absorption rate of pectolinarigenin.
4.Discussion on the Strategy for Development of Authentic Medicinal Herbs
Renfu WAN ; Weiya XU ; Yujiao LI ; Qianfeng GONG
China Pharmacy 2001;0(09):-
OBJECTIVE:To discuss the strategy for development of authentic medicinal herbs for the promotion of their protection and prosperity.METHODS:An analysis was conducted on the formation and development of authentic medicinal herbs.RESULTS & CONCLUSION:Authentic medicinal herbs are the treasure of Traditional Chinese Medicine culture.It is of vital importance to protect and develop authentic medicinal herbs for the promotion of their harmonious,sustainable and healthy development.
5.Studies on HPLC Fingerprint of Triterpene Acids in Poria Peel
Shaojun WANG ; Qi DUAN ; Shilin YANG ; Qianfeng GONG ; Jihua ZHANG
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective To establish a method for HPLC fingerprint determination of the triterpene acids in poria peel.Methods Ethanol solvent and ultrasound method were used to extract the sample. The chromatographic conditions of RP-HPLC were:acefonitrile-0.5%phosphoric acid(linear gradient elution),the detection wavelength being 242 nm, temperature at 30℃and flow rate being 1.0mL?min-1. Ten batches of poria peel produced in different places were measured.The common model was set up to calculate the correlation coefficient, cos?between every batch vector and the total standard model vector, thus to define the similarity.Results There was much difference in the constituent content of poria peel produced in different places and batches.Conlusion The HPLC fingerprint of triterpene acids is stable and reprodacible,which is useful for standard cultivation and quality evaluation of the crud drug of poria peel.
6.Optimum Simmering Radix Puerariae with Wheat Bran Technology by Multi-index Orthogonal Experiment
Lingyun ZHONG ; Liangliang PAN ; Bingjie MA ; Qianfeng GONG ; Wenkai WANG
Chinese Journal of Information on Traditional Chinese Medicine 2014;(8):89-91,92
Objective To optimize the processing technology for Radix Puerariae simmered with wheat bran.Methods Orthogonal experiment L9(34) was chosen to optimize the technology. The external properties of Radix Puerariae simmered by wheat bran, the content of puerarin and the antidiarrheal effect on mice with diarrhea caused by folium sennae were used as indexes. Comprehensive weighted score was employed to optimize simmering Radix Puerariae with wheat bran technology.Results Processing time was the main affecting factor, while processing temperature had no significant effect. The optimum processing parameters were 100 g Radix Puerariae simmered with 30 g wheat bran at 160℃ for 2 minutes.Conclusion The optimum processing technology was simple and convenient, and with good reproducibility and operability. It is also helpful for the quality control of Radix Puerariae simmered with wheat bran.
7.The comparison of right ventricular structure and safety on intervening closure of atrial septal defects in congenital heart disease
Shangwu GU ; Qianfeng JIANG ; Liang GONG ; Hongyan ZHAO ; Jin SHENG ; Mingliang FANG ; Gehong PENG ; Wenhong TAO
Chongqing Medicine 2015;(25):3500-3502
Objective To observe the influence of congenital heart disease(atrial septal defect,ASD)to intervene closure on the right structure of children(<1 5 years)and adults(1 5-65 years)and to make the safety assessment.Methods Totally 1 1 1 un-derwent interventional treatment of complications in patients with ASD in our hospital from 2010 to 2013 were retrospective ana-lyzed.Closure on changing of right heart structure of child and adult were measured by ultrasonic cardiogram.Closure falls off,shut valve insufficiency,arrhythmia,residual shunt were recorded by ultrasonic cardiogram and electrocardiogram.making statistical a-nalysis.Results The inner diameter of the right atrium(RAD),right ventricle diameter(RVD),pulmonary artery diameter(PA) and right ventricular outflow tract(RVOT)were decreased compared with pre-operation(P < 0.05 ),during the follow-up 1,3,6 month,they was continue decreased in the aged between1 5-65 group(P <0.05),but was stable in less than 1 5 years old age group (P >0.05 ).The complication rate of children and adults were 25.0% and 21.3% respectively,and there were no significantly difference(P >0.05),and was no serious complications.Conclusion Congenital heart disease intervention of atria septal defects can improve heart right structure,which can benefit both children and adult,there is no difference in complication rates.All of these have less serious complications,high safety,curative effect affirmation.
8.Effect of nickel-titanium wire on the expression of sarcoplasmic reticulum Ca~(2+)-ATPase and ryanodine receptor in rat myocardial cells
Shangwu GU ; Qianfeng JIANG ; Yuanfu LU ; Qianhui SHANG ; Qin WU ; Liang GONG ; Mingliang FANG
Chinese Journal of Tissue Engineering Research 2015;(43):6924-6929
BACKGROUND:Although the nickel-titanium occluder in the treatment of congenital heart disease has a better clinical effect, arrhythmia wil be more likely to develop in late stage. OBJECTIVE:To investigate the effect of nickel-titanium wire on expression of sarcoplasmic reticulum Ca~(2+)-ATPase and ryanodine receptor of rat myocardial cels. METHODS:Thirty Sprague-Dawley rats were obtained and randomly divided into two groups: experimental and control groups. The nickel-titanium wire was implanted to the apex of heart of rats in the experimental group. Rats in the control group received no special treatment. Rat mycardial cels were harvested at the 1th, 3rdand 6th months after operation. The gene and protein expressions of sarcoplasmic reticulum Ca~(2+)-ATPase and ryanodine receptor of rat myocardial cels were detected using RT-PCR and immunohistochemistry, respectively. The inflammatory reactions were detected using hematoxylin-eosin staining. RESULTS AND CONCLUSION:After the nickel-titanium wire was implanted into the rat myocardium, inflammatory reaction was induced by inflammatory cel infiltration in the experimental group, with hyperplasia of fibrous tissue. The inflammatory reaction gradualy disappeared as the implanted time extended. No inflammatory cel infiltration was visible in the control group. There was no significant difference in the gene and protein expressions of sarcoplasmic reticulum Ca~(2+)-ATPase and ryanodine receptor of rat myocardial cels at different time points after operation between these two groups. It showed that nickel-titanium wire had no influence on the expressions of sarcoplasmic reticulum Ca~(2+)-ATPase and ryanodine receptor of rat myocardial cels. These results suggest that nickel-titanium occluder-related arrhythmia may have little relationship with abnormal protein expression of sarcoplasmic reticulum Ca~(2+)-ATPase and ryanodine receptor.
9.Effect of Different Package and Storage Conditions on Effective Components of Astragalus Pieces
Shuqi YU ; Bingxue YI ; Jinlian ZHANG ; Zhaojun ZENG ; Zhiqiang LI ; Qianfeng GONG
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(6):1364-1371
This experimental study was aimed to find the effect of different package and storage conditions on the content of effective components of A stragalus pieces. A stragalus pieces were stored under different storage conditions by using different packaging materials and packaging methods. Every three months, the contents of Calycosin-7-glu-coside and astragaloside were determined according to the 2010 version of Chinese Pharmacopoeia. With the extend-edstorage time, the contents of two effective components were significantly decreased. After six-monthstorage, the contents were not consistent with the standard of the pharmacopoeia standards. Room temperature had relatively big influence on the loss of content. The plastic and aluminum paperpackagingwere better than kraft paper packaging. The content ofastragaloside using non vacuum packaging method was relatively higher than the vacuum packaging. Contentunder the conditions of cool storehouse and nonvacuum plastic bags was higher than other packagingmethod. And the changes of both contents were relatively stable. It was concluded that the A stragaluspieces should be packed with non vacuum plastic bags, and stored in a cool and dry place.
10.Analysis of Chemical Composition in Puerariae Thomsonii Stem Base and Investigation of Its Effect on Liver Metabolites in Mice Based on UPLC-Q-TOF-MS/MS
Lingbang MENG ; Huan YU ; Xiaoying WU ; Yijing GUO ; Fei QU ; Qianfeng GONG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):174-182
ObjectiveTo systematically compare the chemical compositional differences between Puerariae Thomsonii stem base(PTSB) and Puerariae Thomsonii Radix(PTR), and to explore the potential hepatoprotective effects of PTSB by liver metabolomics. MethodUltra performance liquid chromatography-quadrupole-time-of-flight mass spectrometry(UPLC-Q-TOF-MS/MS) was used to analyze the chemical compositions of PTSB and PTR. Twenty Kunming mice aged 6-8 weeks, half male and half female, were randomly divided into the blank group(sterile water) and PTSB group(1.95 g·kg-1), with 10 mice in each group, and the drug was administered by gavage for 14 d, and the body mass was weighed once a day. After the last administration, mice were anesthetized, organs such as heart, liver, spleen, lungs and kidneys were collected, and the organ index was calculated. Enzyme-linked immunosorbent assay(ELISA) was used to measure the levels of aspartate aminotransferase(AST), alanine aminotransferase(ALT), total cholesterol(TC) and triglyceride(TG) in the serum of mice from each group, the morphological changes of heart, liver, spleen, lung and kidney tissues were observed by hematoxylin-eosin(HE) staining, and the regulation of PTSB for the hepatic metabolic profiles of mice was analyzed by UPLC-Q-TOF-MS/MS, then the differential metabolites between the blank group and PTSB group were designated, and the metabolic pathways was enriched by Kyoto Encyclopedia of Genes and Genomes(KEGG). ResultA total of 19 common chemical constituents were identified from PTSB and PTR, all of which were the main pharmacodynamic substances of PTR. The pharmacodynamic results showed that PTSB could control the growth of body mass of mice and reduce the contents of TC, TG, ALT and AST in serum of mice. HE staining observations and organ indexes showed that there was no significant effect of PTSB on all major organs at the highest clinically equivalent dose. A total of 38 differential metabolites were identified by metabolomics, of which 35 were up-regulated and 3 were down-regulated. These differential metabolites were mainly compounds such as amino acids, fatty acids, vitamins, steroids, nucleosides, pyrimidines and alkaloids. Three key metabolic pathways, including tyrosine metabolism, vitamin B6 metabolism and tryptophan metabolism, were screened by metabolic pathway analysis. ConclusionPTSB has a similar chemical composition to that of PTR, and it may regulate the metabolism of amino acids and vitamins through the flavonoids and isoflavonoids, thus exerting a potential hepatoprotective effect. This study provides an experimental reference for the clinical application and product development of PTSB.