1.Callus induction and cultivation of Phyllanthus urinaria
Chinese Traditional and Herbal Drugs 1994;0(11):-
Objective To establish culture method for Phyllanthus urinaria. Methods To study the possible effective factors of culture condition by comparing with different explants,sucrose,plant growth substance,and its ratio. Results The inductivity of stem was the highest about 55.56%,but callus of leaves could not be induced.6-BA was the most important factor on callus induction,followed by 2,4-D NAA and sucrose. Conclusion The optimal medium to induce and subculture is MS+2,4-D 0.5 mg/L+6-BA 1.0 mg/L+NAA 0.1 mg/L+sucrose 10 g/L.
4.Efficacy of cerebral protection devices during carotid artery stenting
Deyou XUE ; Derang JIAO ; Binge CHANG
Chinese Journal of Tissue Engineering Research 2007;0(22):-
BACKGROUND: There is yet no evidence about whether internal carotid artery stenting with cerebral protection devices is beneficial to reducing neurological complications. OBJECTIVE: To explore the safety and efficacy of carotid angioplasty and stenting with cerebral protection devices for carotid stenosis. DESIGN, TIME AND SETTING: Non-randomized concurrent control trial was performed at Hospital Affiliated to Medical College of Chinese People’s Armed Police Force from June 2005 to January 2007. PARTICIPANTS: Seventy-four patients with carotid artery stenosis underwent stenting, including 21 with cerebral protection devices (16 males and 5 females; average age of 66.4 years, range 50-79 years), and 53 with no protection devices (36 males and 17 females; average age of 69.2 years, range 52-83 years). METHODS: Size of cerebral protection devices was confirmed according to the diameter of normal vessel at distal carotid artery stenosis. The guide wire was sent into distal stenosis under guidance of pathway picture followed by cerebral protection device release. The stent passed over the stenosis and released to appropriate site. The protection device was removed when the stenosis was relieved confirmed by routine angiography. MAIN OUTCOME MEASURES: Features of stenting process; frequency of stroke attack perioperatively and during 12-month follow-up. All of them took periprocedual anticoagulation treatment, cerebral vascular angiograpgy. RESULTS: Seventy-six self-expandable stents were delivered in 74 patients with carotid stenosis. Twenty-one cerebral protection devices were employed including 8 Angioguard and 13 Filterwire. The patients without cerebral protection devices were predilated 20 times (37.7%) with the balloons, and all were postdilated; 3 cases (5.6%) developed brief decreased heart rate and hypotension after stent release. The patients with cerebral protection devices were predilated 6 times (28.5%) with balloons, and all were postdilated; 2 cased (9.5%) developed brief decreased heart rate and hypotension after stent release and 2 (9.5%) developed angiospasm. One patient (4.7%) with cerebral protection devices had cerebral infarction (4.7%) perioperatively and another had cerebral infarction (4.7%) during the follow up. While four patients in the group without cerebral protection devices had cerebral infarction (7.5%) perioperatively, and five had cerebral infarction (9.4%) during the follow up. There were no significant differences between two groups. CONCLUSION: The results of the study show that cerebral protection devices are not helpful to reduce neurological complications in patients with carotid artery stenosis after stenting.
5.Utilization of the Oral Stasis-eliminating Chinese Patent Medicines in Our Hospital During 2006~2008
Jianzhong XUE ; Lili CHANG ; Yuzhen LI
China Pharmacy 2007;0(30):-
OBJECTIVE:To probe into the status quo and the trend of the utilization of the oral stasis-eliminating Chinese patent medicine in our hospital in order to provide scientific basis for rational use of this medicine.METHODS:The consumption amount and consumption sum of the oral stasis-eliminating Chinese patent medicine in our hospital during 2006-2008 were reviewed in respect of the DDDs and DDC using DDDs ranking method.RESULTS:During 2006~2008,the consumption amount of the oral stasis-eliminating Chinese patent medicine in our hospital had a steady increase,and the DDDs showed a good synchronism.CONCLUSION:The use of stasis-eliminating Chinese patent medicine is rational in our hospital.
6. Intension research on influencing factors of medicinal properties formation of Lonicera japonica and cause hypothesis in explaining medicinal properties of Chinese materia medica single herb
Chinese Traditional and Herbal Drugs 2020;51(11):3090-3096
The four natures are the basic properties of Chinese materia medica (CMM). At present, it is one of the research hotspots to reveal the scientific connotation of CMM property theory. Clarifying the formation process and influencing factors of the medicinal properties of each single herb in a long historical period is the basic condition for the induction and summary of common characteristics of TCM property theory. Through the textual research of ancient books and documents, combined with the research results of modern Chinese medicine science, this paper combs the influence factors in the formation of the medicinal properties of Lonicera japonica, and reveals its scientific connotation. That is to say, the formation of the medicinal properties of each single herb of TCM is the result of its efficacy material base, the efficacy reflected in the process of clinical treatment and the tendency of clinical medication in previous dynasties. Based on the above research, the cause hypothesis of single herb property is put forward for the first time. The hypothesis provides a reference for the theoretical study of medicine property of TCM.
9.In vitro stability of Endostar
Xue YUAN ; Chang ZOU ; Liping JIANG ; Yun ZHANG ; Yali CHEN
Journal of China Pharmaceutical University 2009;40(4):359-363
Aim: To compare the stability of Endostar~(TM) and endostatin under different temperatures and pH using polyacrylamide gel electrophoresis( PAGE) and Western blot and to compare the activity of Endostar kept at 4 ℃ and 37 ℃ by inhibition of endothelial cell proliferation. Methods: Endostar and endostatin expressed by Phicha pastoris were kept at 4 ℃, and 37 ℃ for 96 hours, respectively. The electrophoresis of the samples was detected by reduced and non-reduced PAGE. The results were further confirmed by Western blot with rabbit anti-Endostar polyclonal antibody. The inhibitory effect of Endostar stored at different temperatures on HUVEC was also exam-ined by cell-based assay. Results: Single band at 20 kD was detected in all lanes of SDS-PAGE gel loaded with endostatin and Endostar samples under reducing condition. In acidic native PAGE with three different pH values, endostatin showed a smear characteristic, whereas Endostar showed a unique band in acidic non-continuous native PAGE. Although the smear phenomenon was also observed under two conditions of constant native elec-trophoresis, the major band of Endostar could be detected. Similar electrophoretic behavior was found for endosta-tin and Endostar stored at both 37 ℃ and 4 ℃ . Western blot showed similar results to those by PAGE. Furthermore, Endostar stored at these two temperatures also had identical inhibitory effect on proliferation of HUVEC. Conclusion: Endostar and endostatin exhibit similar thermostability at regular conditions, but Endostar was more stable than endostatin expressed in P. pastoris under acidic condition.
10.Research on the process control method of active pharmaceutical ingredient in pituitrin
Hongbao XUE ; Hualan CHANG ; Lili LIANG ; Chengshan ZHANG ; Wenwu GONG
Chinese Journal of Biochemical Pharmaceutics 2017;37(1):55-59
Objective A novel Active Pharmaceutical Ingredient (API) pituitrin efficacy component content analysis method was explored, and the method is conformed to the requirements of the pharmaceutical production enterprise testing standard. Methods The reverse phase high performance liquid chromatography (RP-HPLC) was performed on a Zorbax Eclipse XDB-C18(250mm×4.6mm, 5 μm) (P/N 993967-902/ 5063-6600) Column, the column temperature was 25℃, the wavelength of detector was set at 220 nm, flow rate was 1.2 mL/min, 50% Acetonitrile- 0.13mol/L sodium dihydrogen phosphate aqueous solution was used as mobile phase for gradient elution. 20 μL sample solution was injected in each perform. Results The content of oxytocin and vasopressin as pituitrin efficacy components were analyzed by this method with advantage of simple and easy operation, good reliability and high precision. Different biological extraction technology process A and B was used on pituitrin injection production, the content of medicinal ingredients in the product: oxytocin and vasopressin is slightly different, but concentration level is different, which process B concentration is higher than that of A. Conclusion In this study, an effective determination the levels of oxytocin and vasopressin in pituitrin API method was established for a pharmaceutical production enterprise, can provide API pituitrin purification process control. Relevant technical information can be provided in the above, which worked on the biological API pituitrin research and development.