1.Study on Preparing Curcumin Liposomes by Different Methods
Hanlin XU ; Yun SUN ; Jizheng SHAO
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(07):-
Objective To study on preparation and encapsulation of Curcumin liposomes. Method Liposome was prepared by five kinds of methods, determining the encapsulation efficiency by Visible Spectrophotomery on 424 nm. Result The envelopment ratio of Curcumin liposome made by the method of ethanol injection was 73.5%. Conclusion The preparation process of ethanol injection is simple and apt to control. The new form of prepared drug can improve bioavailability of Curcumin.
2.The contrast between 12 faculties of dentistry in America and our college in stomatology educa-tion
Yun SUN ; Xia CAO ; Yuanjin XU
Chinese Journal of Medical Education Research 2003;0(04):-
The beginning of stomatology education in China is much later than America,and the education model is different from each other. This article compares the educational system,the requirements of enrollment and teaching between College of Stomatology of Shanghai Jiao Tong University and 12 Faculties of Dentistry in America,so as to find both the similarities and the dif-ferences,and then give some advice to improve the education system of stomatology in China.
3.Mechanism of hypoxia inducing factor-1α in low endometrial receptivity
Bufang XU ; Xiaoxi SUN ; Yun FENG ; Aijun ZHANG ; Linan CHENG
Chinese Journal of Obstetrics and Gynecology 2011;46(5):355-359
Objective To study the mechanism of hypoxia inducing factor-1α(HIF-1α)pathway in establishment of hypoxia inducing low endometrial receptivity.Methods RL95-2 cell lines.the ideal model of study ER,were cultured in hypoxia condition induced by CoCl2,and the expression of mRNA and protein of HIF-1α and tumor necrosis factor like weak inducer of apoptosis(TWEAK)were measured by reverse transcription-PCR and western blot. The apoptosis rate was analyzed by flow eytometry.Then the mechanism confirmed by comparing the two factors in endometrium and the ultra-appearance of inflammatory reaction and apoptosis between recurrent spontaneous abortion women and control women.Results (1)On difierent time point(0,12,24,48 hour),mRNA expression of HIF-1α were 0.272±0.010,0.354±0.020,0.591±0.020.0.890±0.020,while the expression of TWEAK were 0.104±0.010,0.510±0.020,1.021±0. 020, 1. 237 +0. 040, respectively, the expression level between 12, 24, 48 and 0 hour all showed significant differences (P<0. 05 ). (2) Protein expression of HIF-1α were 0. 853 +0. 010, 0. 931 ±0. 030,1. 124±0.010, 1.317±0.0 20 respectively, while was 0.042±0.010, 0.091 ±0.010, 0. 131±0.020,0. 205 ±0. 030 in TWEAK expression, the different level were statistically significant ( P<0. 05 ). ( 3 )With longer culture under hypoxia, the cell apoptosis rate increased obviously. The apoptosis rate of each time point were ( 3.2±1.4 ) %, ( 16. 2 ±3.2 ) %, ( 26. 3±3.5 ) %, ( 31.8±3.5 )%, the differences between 12, 24, 48 and 0 hour had significance (P <0. 05). (4) The positive rate of HIF-1α stained in epithelium cells and stroma cells of test group were 32. 3%, 8.4% and 16. 7%, 7. 3% in control group. The positive rate of TWEAK were 28. 3%, 3.9% in recurrent spontaneous abortion group and 11.6%, 2. 7% in control group ( P <0. 05 ). The ultra-appearance of inflammatory cell infiltrated and apoptosis were obvious in test group. Conclusions Cell inflammation reaction and apoptosis induced by HIF-1α pathway may participate the mechanism of hypoxia inducing low endometrial receptivity. HIF-1α might become a novel target for improving poor endometrial receptivity.
4.Bioinformatical analysis of the specific allergen pTSX1 cDNA clone of Humulus pollen in allergic asthma
Jing XU ; Xiuzhen SUN ; Yun LIU ; Yonghong ZHANG ; Wei LI
Journal of Xi'an Jiaotong University(Medical Sciences) 2010;31(2):151-155
Objective To make a bioinformatical analysis of the specific allergen pTSX1 cDNA clone obtained from Humulus pollen in allergic asthma by immunological screening and gene cloning. Methods Bioinformatical approaches, including sequence analysis, sequence alignment, genetic makeup, protein structure and function prediction, were used. Results The analysis of the specific allergen pTSX1 cDNA showed that the gene had no reading frame and coded a protein with 204 amine acids. The analysis of amine acids sequence coded by the pTSX1 cDNA showed that the protein identity of this gene product might be one of ribosomal proteins. Conclusion The pTSX1 cDNA cloned from Humulus pollen in allergic asthma is a new gene, and the protein coded by pTSX1 gene may be one of ribosomal proteins.
5.The expremental research of sodium ferulate on asthmatic guinea pig
Yun SUN ; Feng XU ; Dejun WANG ; Hongquan ZHANG
Chinese Pharmacological Bulletin 2003;0(11):-
Aim To evaluate the pharmacological effects of sodi um ferulate on asthmatic guinea pigs. Methods Guinea pigs were sensit ized by ovalbumin. Two weeks later,ment of Sodium ferulate were injected every d ay five minutes before inhale, the guinea pigs were killed 7 days later. Granul ocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-4 (IL-4), interleukin-5(IL-5), Eosinophil cationic protein (ECP) in serum were measured by Enzyme-linked immunosorbent assay(ELISA) and fluoroimmunoassay method, the e osinophils (EOSs) were counted and the phosphodiesterase (PDE) in the bronchoalv eolar lavage fluid(BALF) were determined by inverse high-performance liquid chr omatography (HPLC) method. Result After treatment with sodium f erulate for one week at the dose of 25,50,100 mg?kg -1 respectively, th e GM-CSF, IL-4, IL-5 contents were inhibited as compared with the untreated g roup in a dose dependent manner.The count of eosinophil was decreased.The activi ty of PDE of cell in BALF and the level of ECP were decreased.Conclusion Sodium ferulate attenuates the GM-CSF, IL-4, IL-5 in serum and eosi nophils and the activity of PDE and ECP and has protective effect in asthmatic g uinea pig.
6.Nursing care of 7 patients with liver cirrhosis during pregnancy and childbirth
Weihong SHAO ; Yuehong HU ; Huilian SUN ; Yun LIU ; Xinfen XU
Chinese Journal of Nursing 2010;45(5):427-429
This paper reports the nursing care of 7 patients with liver cirrhosis during pregnancy and childbirth. During the pregnancy period,nursing care focused on integrated management,monitoring of the dynamic changes of liver cirrhosis and individualized care. During delivery and perioperative period,supportive treatment was implemented and complications such as upper gastrointestinal hemorrhage,postpartum hemorrhage and infections were prevented. The 7 patients got through the perinatal period safely.
7.Intra-sinus thrombolysis by using urokinase may improve the outcomes in patients with cerebral venous sinus thrombosis
Chengmei SUN ; Keju JU ; Mingchao LI ; Yun XU
International Journal of Cerebrovascular Diseases 2014;22(9):645-649
Objective To compare the effects of intra-sinus thrombolysis by using urokinase and heparin anticoagulation alone for cerebral venous sinus thrombosis (CVST).Methods Consecutive inpatients with CVST were enrolled retrospectively.Their demographic and clinical data were collected.The treatment mainly consists of intra-sinus thrombolysis by using urokinase and heparin anticoagulation alone.The outcomes were evaluated according to the modified Rankin scale (mRS) at 6 months.The mRS score < 2 was defined as good outcome,and ≥2 was defined as poor outcome.Results A total of 36 patients were enrolled,including intra-sinus thrombolysis by using urokinase (n =18) and heparin anticoagulation alone (n =18).Twenty-one had good outcomes and 15 had poor outcomes.After treatment,the recanalization rate (94.4% vs.66.7% ;x2 =3.850,P=0.041) of the urokinase thrombolysis group and the good outcome rate at 6 months (72.2% vs.44.4% ; x2 =3.827,P =0.046) were significantly higher than those of the heparin anticoagulation group.The proportion of the patients receiving intra-sinus thrombolysis by using urokinase of the good outcome group was significantly higher than that of the heparin anticoagulation group (60.0% vs.18.2 % ; x2 =5.360,P =0.021).Multivariate logistic regression analysis showed that the intrasinus thrombolysis by using urokinase was an independent protective factor for good outcomes in patients with CVST (odds ratio,1.085,95% confidence interval 1.024-1.361; P=0.023),and the high coagulation state was its independent risk factor (odds ratio,0.185,95% confidence interval 0.049-0.611;P=0.004).None of the patients occurred symptomatic cerebral hemorrhage.Conclusions Intra-sinus thrombolysis with urokinase may improve the outcomes for patients with CVST,and it is superior to the heparin anticoagulation alone.
8.Construction of humulus scandens pollen major allergen pcDNA3.1-LC2 DNA vaccine and study of its immunogenicity in mice
Yonghong ZHANG ; Xiuzhen SUN ; Yun LIU ; Jing XU
Journal of Xi'an Jiaotong University(Medical Sciences) 2010;31(1):51-53,78
Objective To construct humulus scandens pollen major allergen DNA vaccine pcDNA-LC2 and evaluate its immunogenicity. Methods Humulus scandens pollen allergen gene was digested from recombinant plasmid pTripIEx2-LC2 by EcoRⅠ and HindⅢ of restriction endonuclease, and then inserted into expression vector pcDNA3.1(-). A large amount of endotoxin pcDNA3.1-LC2 purified plasmid was extracted after successful construction, and animal experiment was carried out to study its immunocompetence. Results Sequencing results showed that 672bp in the coding sequence of frames of recombinant pcDNA3.1-LC2 was in line with the original base line, without deletion or mutation. pcDNA3.1-LC2 of pollen allergen humulus scandens allergen vaccinated BALB/c mice. Double immunodiffusion test showed that pcDNA3.1-LC2 could be expressed and produce antibodies in mice. Conclusion Humulus scandens grass pollen major allergen DNA vaccine pcDNA3.1-LC2 has been successfully constructed. It can be expressed in mice, produces humulus scandens grass pollen allergen specific antibody and has a good immunogenicity.
9.Effects of cistanche desertica polysacchrides on the nitric oxids and apoptosis of lung in aging mice
Yun SUN ; Feng XU ; Xuanxuan YANG ; Dejun WANG ; Hongquan ZHANG
Chinese Pharmacological Bulletin 1986;0(06):-
AIM To evaluate the effect of METHODS 2 month-old mice were fed routinelycistanche desertica polysacchrides(CDP) on the ni- for 11 mounths to establish the model of naturallytric oxids(NO) ,superoxide dismutase(SOD) in se- aging mice. The cistanche desertica polysacchridesrum and apoptosis of lung cell in aging mice. 25, 50, 100 mg ?kg~' were administrated respec- lively to the mice po. then investigated the concentration of NO, SOD and the morphological changes of apoptosis by fluoromicroscope. RESULTS Aging could induce the lung cell apoptosis, decrease the level of SOD, and increase the level of NO as well. The cistanche desertica polysacchrides signif- icantly ameliorated the lung cell apoptosis; decreased the level of NO, improved the activity of SOD. CONCLUSION Cistanche desertica polysac-chrides have ameliorating and postponing effects on the regressive changes in the lung of aging mice.
10.Preparation of rhubarb lactobacillin dispersible tablets
Hanlin XU ; Jizheng SHAO ; Jun CHEN ; Yun SUN ; Chizhi ZHANG
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(01):-
Objective: To obtain the optimum prescription of the rhubarb lactobacillin dispersible tablets.Methods: The kind and amount of the excipient were investigated by using the disintegrating time to establish the optimum prescription and preparation process.Results: The tablets were prepared by compressing moist granulation with the PVPP and CMS-Na as the disintegrant,MCC as diluent,sodium alginate as sweller,magnesium stearate as lubricant and 80% alcohol as adhesive agent.The preparation complied with the requirement of Pharmacopeia of the People's Republic of China(2005edition).Conclusion: This prescription of the tablet is reasonable and the preparation process is feasible.