1.Effect of Different Compatibilities of Shuangxia Soup on Extraction Yield of Trigonelline and Uracil
Junyi ZHANG ; Xiaojing ZHANG ; Yikun SUN
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(10):2223-2226
This article was aimed to study the effect of pinellia combined with prunella vulgarisin of different ratios on the extraction yield of trigonellin and uracil, in order to investigate the changing disciplines and reasonable com-bination of Shuangxia Soup. A Welch Ultimate AQ-C18 column (4.6 mm×250 mm, 5 μm) was used in the study. The mobile phase, consisting of solvent A (water) and solvent B (acetonitrile) was programmed as a linear gradi-ent. The flow rate was 1.0 mL·min-1. And the detection wavelength was 265 nm. The column temperature was 25℃. HPLC was used in the determination of extraction yield of trigonellin and uracil for the comparison among different compatibilities. The results showed that the linearity was achieved in the range of 0.872-4.36 ng for trigonelline, and 10.8-50.4 ng for uracil. The average recoveries were 96.53%-101.48%, with RSD of 0.18%-4.26%. Com-pared with pinellia, the extraction yield of trigonelline was reduced and the extraction yield of uracil was increased after the compatibility. It was concluded that different compatibilities of Shuangxia Soup had effects on the extrac-tion yield of trigonelline and uracil. The best compatibility ratio still requires in-depth study.
2.Study on HPLC Fingerprint of Smilacis Rhizoma
Lei LI ; Honggui ZHANG ; Yikun SUN ; Yanjiang QIAO ;
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(04):-
Objective:Adopting RP-HPLC method,to study and establish the fingerprint of smilacis rhizome.Methods: YMC-Pack ODS-A(5 ?m,4.6 mm?250 mm) chromatographic column,acetonitrile-0.05% phosphoric acid solution gradient elution were applied;with flow rate of 0.8 ml/min and UV detector at 290 nm.Results: Technology investigation indicated that the analytical method this study established has a better reproducibility.The similarity of smilacis rhizoma fingerprints from different sources is better;smilacis rhizome and its three confusions fingerprints are apparently different.Conclusion: HPLC fingerprint analysis can be a method for quality control of medical material of smilacis rhizoma.
3.Study on Enantiomer Separation for Atropine by Capillary Electrophoresis
Xiongfei WANG ; Yikun SUN ; Yuezhu DING ; Shanshan QIAO ; Ruijuan YUAN
China Pharmacist 2016;19(7):1293-1295,1304
Objective:To investigate the enantiomer separation for atropine by capillary electrophoresis .Methods:Capillary elec-trophoresis was used with an elastic quartz capillary column (60 cm ×75 mm, effective length of 40 cm).The concentration of phos-phate buffer was 30 mmol· L-1 .The high and time of injection was 10 cm and 5 s, respectively.The detection wavelength was 225 nm.The best separation conditions were selected including the type and concentration of chiral resolving agent , pH of the buffer solu-tion, operating voltage and organic solvent.Results:The optimum conditions of separation were as follows:the pH of buffer solution was 7.0, the concentration of S-β-CDP was 10 mg· ml-1 , and the operating voltage was 12 kV.Conclusion: The method is simple and fast, which can be used to se parate the optical isomers of atrpo ine.
4.Dosimetry Study of IMRT and 3D-CRT Radiotherapies for Patients with Upper Esophageal Carcinoma
Xiaolin GE ; Xinchen SUN ; Wenzhang CHEN ; Yikun LI
Chinese Journal of Medical Physics 2010;27(2):1708-1711,1720
Objective: To compare the difference of intensity modulated radiation therapy (IMRT),3-D imensional conformal radiation therapy (3DCRT) for patients with upper esophageal carcinoma. Methods: Ten patients with upper esophageal carcinoma were treated by intensity modulated radiation therapy and 3-D imensional conformal radiation therapy at the same TPS, the difference of exposure dose between target area and critical organ was compared by dose volume histogram(DVH) with the plan target volume (PTV) must reach 95% of the prescription dose. Results: There was significant difference in dose of 95% plan target volume (PTV) (P <0.05) IMRT better than 3D-CRT. For two target conformal index and the prescription dose coverage of GTV percentage IMRT was better than 3DCRT. IMRT reduced maximum dose of spinal cord (P <0.05). There was no difference in the dose of lung and heart (P >0.05). Compared with 3D-CRT, IMRT planning has better dose distribution and protection of normal tissue. Conclusions: IMRT was better than 3DCRT, IMRT is the best radiation therapy.
5.Determination of berberine hydrochloride in Fuyanping capsules by HPLC
Ying ZHAI ; Xu CHEN ; Weiyi LIU ; Yikun SUN
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(11):-
Objective:To establish the quality standard of berberine hydrochloride in Fuyanping capsules by HPLC. Methods:HPLC with Phenomenex C18(250?4.6mm,5?m)column was used.Acetonitrile-0.033mol/l potassium dihydrogen phosphate(30:70)was used as a mobile phase,flow rate was 1.0ml/min and detection wavelength was set at 346nm.Results: Berberine hydrochloride showed a good linear relationship at a range of 0.16-0.83?g,r=0.9999.The average recovery was 99.09%,and RSD was 0.20%.Conclusion:This method is simple,fast and accurate for the quality control of Fuyanping capsules.
6.Influence of Qizhi Yifei Containing Serum on Regulating Expression of MMP-9 and TIMP-1 mRNA in Rat Ffibroblasts Stimulated by TGF-β1
Zhikun LIU ; Mingjing ZHAO ; Yajing HOU ; Yonghong GAO ; Yikun SUN ; Cuiling FENG
Chinese Journal of Information on Traditional Chinese Medicine 2014;(3):50-52,57
Objective To observe the influence of Qizhi Yifei containing serum on the expression of MMP-9 and TIMP-1 mRNA in lung fibroblasts, and explore its mechanism. Methods Trypsin digestion method was used to extract fibroblasts from lung tissue in rats. All fibroblasts were cultured and trained to the fourth generation. Then they were randomly divided into control group, model group and drug serum group. The model group and drug serum group were firstly treated by DMEM with 0.002 5 μg/mL TGF-β1. The control group was treated by DMEM only. The control group and model group were then treated by DMEM with blank drug serum in concentration of 5%, and the drug serum group was treated by DEME with Qiahi Yifei containing serum in same concentration. After 48 and 72 hours, RT-PCR was performed to test the expression of MMP-9 mRNA and TIMP-1 mRNA of each group. Results After 48 hours, MMP-9 and TIMP-1 mRNA were significantly increased in model group and drug serum group compared with control group. There was no difference between model group and drug serum group. After 72 hours, MMP-9 mRNA was up-regulated in model group and was decreased in drug serum group compared with control group. There was no significant difference among the three groups on the expression of TIMP-1 mRNA. Conclusion Qizhi Yifei containing serum can decrease the up-regulated expression of MMP-9 mRNA in lung fibroblasts stimulated by TGF-β1.
7.Effects of Panax Notoginseng Saponins on Expression of ZO-1 of Brain Microvascular Endothelial Cells Caused by Aβ42
Likun YANG ; Lulu MANA ; Haiyan ZHU ; Tao MA ; Yikun SUN ; Yizhou ZHAO ; Yonghong GAO
Chinese Journal of Information on Traditional Chinese Medicine 2014;(8):57-59
Objective To study the effects of Panax Notoginseng Saponins (PNS) on the damaged expression of ZO-1 of brain microvascular endothelial cells caused by Aβ42.MethodsBrain microvascular endothelial cells were divided into normal control group, model group, PNS low-, medium- and high concentration groups. They were incubated for 24h in 5% CO2 incubator at 37℃ . Then cell vitality was detected by MTT colorimetric method and ZO-1 protein expression was tested by Western blot.Results Stimulation of Aβ42 reduced the activity of microvascular endothelial cells (P<0.01) and suppressed the expression of ZO-1 protein (P<0.01). Compared with the model group, the activity of microvascular endothelial cells of PNS groups, especially the high and medium dose groups (P<0.05), and increased the ZO-1 protein expression. Conclusion PNS can partly recover the barrier function of blood brain barrier through inhibiting the decrease of the activity of microvascular endothelial cells caused by Aβ42.
8.Progress of Xingnaojing injection on the treatment of ischemic stroke
Lijun WU ; Xiaomeng REN ; Yikun SUN ; Yizhou ZHAO ; Yonghong GAO ; Lina TAN
International Journal of Traditional Chinese Medicine 2016;38(7):667-669
Xingnaojing injection has been widely used in the treatment of cerebral vascular diseases, through the following mechanisms: improving the blood-brain barrier (BBB) permeability, anti-oxidant free radical damage, inhibition of excitatory amino acids (EAA) toxicity and calcium overload, inhibition of apoptosis, reducing cerebral edema and inhibition of autophagy. Thus, the paper summarized its progress.
9.Research on Promotion of Wound Healing by Amputated lumbricus Extract
Wenqi WANG ; Haicong HU ; Zhiqian ZHANG ; Huaqi TANG ; Shuofeng ZHANG ; Yikun SUN
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(7):1449-1453
On the basis of pre-experiment research and the hypothesis of“amputated lumbricus”, this research was aimed to explore mechanism of active components of the amputated lumbricus to promote wound healing. Skin excision was used to establish the mice model. The amputated lumbricus extract was prepared. HE staining and immunohistochemistry techniques were used in the determination of the wound healing rate and changes of VEGF, bFGF, TGF-β1 expression during wound healing period. The results showed that compared with the blank control group, the healing rate of the amputated lumbricus extract group was better. And the HE staining showed better improvement of traumatic tissues. There was no statistic differences on the expression of VEGF and TGF-β1 between the amputated lumbricus extract group and the normal saline group (P> 0.05). The expression of bFGF in amputated lumbricus extract group reached peak earlier than the control group and also lasted a longer time. The amputated lumbricus extract group reached peak on the first day, which had a significant difference (P < 0.05) compared with the control group at the same timepoint. It was concluded that the external application of amputated lumbricus extract had wound healing effect on traumatic skin of mice. Its mechanism may be irrelevant to the expression of VEGF and TGF-β1. However, it may be related to the increasing of bFGF expression in the injured regions during the inflammation stage and proliferation stage.
10.Study on Sedative and Hypnotic Effects of Different Eluents of Shuangxiatang
Wenhui PEI ; Yikun SUN ; Junyi ZHANG ; Ran WANG ; Juanjuan DUAN ; Aixian HE ; Guilin ZOU ; Fang FANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(8):1713-1716
This article was aimed to study the sedative and hypnotic effects of different eluents of Shuangxiatang (SXT). The effects of SXT water decoction, water eluent, 20%, 70% and 95% alcohol eluent on spontaneous ac-tivity and the sleeping induced by subthreshold dose of pentobarbital sodium were measured. The results showed that the SXT decoction, 20% and 95% alcohol eluent can significantly decrease the number of rearing in mice with the percentage of 78.5%, 78.3% and 62.5%, respectively. SXT water eluent and 70% alcohol eluent can significantly decrease the spontaneous activity of mice (P < 0.01), the number of rearing (P < 0.01) and grooming time (P < 0.05). SXT water decoction can significantly shorten sleep latency (P < 0.05), prolong sleep time (P <0.05), and increase rates of sleeping in mice. SXT water eluent can significantly shorten sleep latency in mice (P< 0.05), increase rates of sleeping in mice. SXT water decoction and water eluent have the sedative and hypnotic effects. And the effects are more than alcohol eluents.