1.Transcription factors as new targets for cancer therapy
Journal of China Pharmaceutical University 2010;41(2):97-103
Mechanism studies in the gene regulation in the eukaryotic cells is one of the momentous areas in molecular biology.Regulation at transcription level is a complex progress with multiple steps with the presence of the gene functions.There exist ubiquitous occurrence of transcription factors in mammalian tissues and biodiversity in the factors.These transcription factors are found to relate closely to various carcinogeneses,including cell proliferation,apoptosis,invasion and angiogenesis.Understanding of transcription factors and their action mechanisms,through the activation and inhibition of transcription factors,would potentially lead to the discovery of new entities in the targeting treatment and prevention of the cancer diseases.
2.Recent advances of human epidermal growth factor receptor 2/neu in biliary tract carcinoma
Runfa BAO ; Yijun SHU ; Yingbin LIU
Chinese Journal of Digestive Surgery 2015;14(5):434-437
Biliary tract carcinoma (BTC) is a common malignancy in human digestive system.The lethality of BTC is essentially attributed to the asymptomatic growth of BTC and the lack of effective diagnostic options.The disease is therefore usually detected at an advanced stage and lost the opportunity of surgical therapy.Conventional chemotherapy and radiation therapy have been notably ineffective against BTC.There is now a real and urgent need to focus on developing novel and potent therapeutic strategies against BTC.Human epidermal growth factor receptor 2/neu (HER2/neu) is a member of the ErbB receptor tyrosine kinase family.HER2/neu is associated with tumor proliferation,invasion,and metastasis that would impact in a significant way on clinical outcome.HER/neu may become a new therapy target of BTC.
3.Treatment of Prostatic Hyperplasia by Plum-blossom-magnet-needle Synthetic Therapy:A Report of 149 Cases
Qingguo LIU ; Heyu GAO ; Yijun CUI
Journal of Acupuncture and Tuina Science 2005;3(2):55-58
Purpose: To observe the therapeutic effect of plum-blossom-magnet-needle synthetic therapy on benign prostatic hyperplasia (BPH). Method: 219 cases of BPH patients were randomly divided into two groups. There were 149 cases in treatment group, which treated by pressing, needling with plum-blossom-magnet-needle and putting effect-increasing pads on Prostate Reflex Area, bilateral Zhongliao (BL 32), Neck 1, Neck 7, Mingmen (GV 4) and Yongquan (KI 1). There were 70 cases in control group, which treated by orally taken Terazosin Hydrochloride (Gaoteling) tablets, 2 mg/time, twice a day. The therapeutic course was 4 weeks.After one therapeutic course, the therapeutic effect was evaluated. Results: The marked effect rate was 63.3% and total effective rate was 91.8%; in the control group, there were no markedly effective cases and the total effective rate was 72.7%. There was a significant difference between two groups (P<0.05). Conclusion: The plum-blossom-magnet-needle synthetic therapy had a significant therapeutic effect for the treatment of benign prostatic hyperplasia (BPH), so it was a safe and effective therapy for BPH.
4.Mesenchymal stem cells-stents complex in repair of meniscus injury in knee joint
Yijun LIU ; Qiuxia ZHANG ; Jing TIAN
Chinese Journal of Tissue Engineering Research 2014;(7):1088-1093
BACKGROUND:Meniscus injury is a common disease, whose curative effect is not obvious. The clinical application of tissue engineering technology is gradual y rising, and mesenchymal stem cells-stents complex is expected to be used for the treatment of meniscus injury.
OBJECTIVE:To review the application process of mesenchymal stem cells-stents complex in meniscus injury, in order to provide reference for further study and clinical practice.
METHODS:A computer-based online search of PubMed database, VIP database, Wanfang database and China National Knowledge Infrastructure between 1980 and 2013 was performed to search related articles on mesenchymal stem cells-stents complex in meniscus injury. The key words were“mesenchymal stem cell, meniscus injury, tissue engineering, scaffold, stent”in English and“mesenchymal stem cell, meniscus injury, tissue engineering”in Chinese. For the articles in the same field, we preferred the ones published recently or in authorize journals. Meta-analysis and repetitive studies were excluded. 282 articles were included, and final y 59 articles were included according to inclusion criteria.
RESULTS AND CONCLUSION:Nowadays, numerous experiments showed that mesenchymal stem cells could differentiate into chondrocytes both in vivo or vitro. Mesenchymal stem cells-stents complex could be effective to meniscus injury. Although this technique is stil in exploratory stage, it has promising application prospects in treatment of meniscus injury, because it is characterized by convenience to col ect samples, vitality and no antigenicity.
5.Apotosis-inducing effect of Tongbu-Xiaoji decoction on A549 cells
Yijun LI ; Jianqiu LIU ; Tao XU
International Journal of Traditional Chinese Medicine 2013;35(4):323-325
Objective To investigate the apoptosis-inducing effect of the Tongbu-Xiaoji decoction on A549 cells.Methods A549 cell lines were cultured with normal serum and different concentration of serum containing Tongbu-Xiaoji decoction.The cells were stained with PI and Annexin V,and were evaluated by flowcytometry.Resnlts A549 cells were treated by Tongbu-Xiaoji decoction with low、median and high dose medicated serum,the rate of apoptosis in 24h were (5.92±2.04)%,(12.57±1.96)%,and (16.51±1.52)%respectively; the rate of apoptosis in 48h were (13.15±1.60)%,(26.42±2.30)%,and (31.47±2.08)%respectively and the rate of apoptosis in 72 h were (18.73 ± 1.89) %,(31.72± 1.99) %,and (36.92± 1.38) %respectively,all were lower than compared with the model control group in 24 h were (0.40±0.08)%,48 h were (0.58± 0.16)%,72 h were (0.85 ± 0.13)%.Conclusion Tongbu-Xiaoji decoction has the apoptosis-inducing effect on A549 cells.
6.Study on Extraction Process of Polysaccharides from Elaeagnus angustifolia L. by Enzymatic- assisted Ultrasonic Methods
Yijun LIAN ; Bingqi LI ; Hong LIU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(06):-
Objective To optimize the technological conditions of polysaccharide extraction from Elaeagnus angustifolia L. by enzymatic-assisted ultrasonic. Methods The effects of different enzymes, enzymolysis temperature, enzyme dosage, enzymolysis time, material-water ratio, crushing degree, ultrasonic time and ultrasonic temperature on the extraction rate of Elaeagnus angustifolia L. polysaccharide was analyzed. Results The optimal technological condition was as follows:1.5% cellulase, 1.5% pectic enzyme, enzymolysis time 40 min, enzymolysis temperature 55 ℃, ultrasonic time 25 min, ultrasonic power 400 W, material- water ratio 1∶30, and temperature 60 ℃. In these conditions, the extraction efficiency of polysaccharide was 12.35%. Conclusion The process is simple and practicable, and can be used for the extraction of Elaeagnus angustifolia L. polysaccharide.
7.Achievements of urban hospitals′ support for county-level public hospitals
Yijun LIU ; Xue BAI ; Pengqian FANG
Chinese Journal of Hospital Administration 2017;33(7):547-549
The counterpart support by urban hospitals to rural hospitals is an important measure of the healthcare reform and health poverty alleviation, especially useful for reform of county-level public hospitals.A study of the policy development and an analysis on the development status quo of 16 county-level public hospitals following their acceptance of such support in Hunan and Hubei province, confirmed the practical significance of such counterpart support.The authors also found defects in personnel training, technology innovation and policy fine-tuning, in need of improvements.
8.Expression of IRS-2 in the Liver of High Fat and Sugar Diet Induced NAFL Mice
Cong LIU ; Yijun ZHOU ; Li LI
Chinese Journal of Practical Internal Medicine 2001;0(09):-
Objective To investigate the expression of insulin receptor substrate-2(IRS-2)in the liver of nonalcoholic fatty liver(NAFL)mice.Methods Ten female C57BL6J mice fed with normal diet were served as controls,while fifteen fed with high fat and sugar diet for either 8 weeks(group-A)or 16 weeks(group B)were as NAFL mice models.Abdominal fat mass,total cholesterol(TC),triglycerides(TG),high density lipoprotein cholesterol(HDL-C),fasting blood glucose(FBG)insulin(INS)and liver function,liver weight were measured.And the expression of IRS-2 and the content of lipid in the liver were also detected.Results The abdominal fat mass serum TC,and FBG were significantly higher in high fat and sugar diet fed mice than that in controls(P
9.Rapid and sensitive high-throughput determination method for alanine-dependent transaminase
Huan LIU ; Xuri WU ; Yijun CHEN
Journal of China Pharmaceutical University 2018;49(4):490-495
A new method for determining transaminase activity based on the color change of the reaction solution was established, by using alanine-dependent transaminase VfTA from Vibrio fluvialis JS17 as the research object coupled with pyruvate oxidase and horseradish peroxidase. After the optimization of the conditions, the linear relationship between VfTA activity units and the absorbance at 400 nm was investigated. This method was also applied to determine the activity of commercial transaminase ATA117. The results showed that the detection limit of transaminase VfTA activity was up to 0. 45 U/mL and the detection limit of ATA117 activity was up to 0. 5 U/mL. The transaminase activity could be quickly judged according to the color depth of the reaction solution.
10.HRCT diagnosis of Goodpasture syndrome
Jing LIU ; Mei XU ; Xiuli LIU ; Jingwang LIU ; Yijun GAO
Journal of Practical Radiology 2017;33(5):726-728,749
Objective To analyze the imaging features and follow-up changes of high-resolution CT(HRCT) in Goodpasture syndrome.Methods HRCT imaging features and follow-up findings of 15 cases Goodpasture syndrome confirmed by clinical were analyzed retrospectrively.The imaging features included extent,forms and follow-up changes.Results The lung lesion of Goodpasture syndrome involved two lobes(n=1), three lobes(n=2), four lobes(n=5) and five lobes (n=7).Upper lobe of the right lung was the most common involved region.Centered on the hilum of lung consolidations confused ground glass opacity (GGO) were showed in 7 cases, GGO distribution of pulmonary leaflets in 5 cases.On follow-up observation, lobar or segmental consolidation could change into GGO,GGO could disappear in short times.Conclusion Multiple lobar or segmental consolidations confused GGO without the lung bottom and periphery involvement is the imaging characteristics of Goodpasture syndrome patients with anemia and hemoptysis.HRCT is a helpful method for the diagnosis and following up of Goodpasture syndrome.