1.Progresses of TGF-β-Smad signaling pathways and epithelial-mesenchymal transition in stented blood vessel stenosis
Chinese Journal of Interventional Imaging and Therapy 2017;14(3):182-185
There is a high risk of re-stenosis after implanting blood vessels stent,the processes involves the transforming growth factor-β (TGF-β)-Smad signaling pathways,epithelial-mesenchymal transition (EMT) and so on.The function of TGF-β-Smad signal pathways and EMT in vascular stent re-stenosis and the relevant mechanism were reviewed in this paper.
2.Advances in parallel artificial membrane permeability assay and its applications.
Yifan WU ; Hui LIU ; Jingman NI
Acta Pharmaceutica Sinica 2011;46(8):890-5
With the development of drug discovery, more and more candidate compounds need to be studied. Methods that can screen compound rapidly received significant attention. Parallel artificial membrane permeability assay (PAMPA) as a powerful tool has been applied to drug studies. It uses an artificial lipid membrane to mimic the barrier for drug permeability studies. This article introduces the establishment and characteristics of PAMPA, as well as its applications in screening compounds. It can be used as models (e.g. predicting the ability of compound in gastro-intestinal absorption, blood-brain barrier transportation and skin penetration) by changing the component of artificial lipid membrane. PAMPA has advantages in high throughput selection of valuable compound with low cost, versatile, low dose, and good reproducibility.
3.Nursing care of 5 patients with Charcot's arthropathy undergoing rotating hinge prosthesis knee replacement
Guofeng YE ; Aidong JIN ; Yifan WU
Chinese Journal of Nursing 2010;45(1):19-20
This paper reports the nursing experience of 5 cases of Charcot's arthropathy undergoing rotating hinge prosthesis knee replacement. The nursing care focused on psychological nursing, preoperative examinations, control of blood glucose and treatment of syphilis during preoperative period, as well as wound care, management of drainage tube, prevention of complications and early functional exercise during the postoperative period. All cases were followed up through 6 to 60 months. The short-term outcomes were satisfying. One patient suffered from periprosthetic femoral fracture at 23-month after the operation, and healed up eventually after open reduction and internal fixation.
4.Determination of MIL50, a humanized antibody, in different tissues of rats by a sandwich enzyme-linked immunosorbent assay
Yifan WU ; Peiyuan JIA ; Junhua WU ; Jianping ZHOU ; Haixia LI
Military Medical Sciences 2013;(11):827-830
Objective To develop a sandwich enzyme-linked immunosorbent assay ( ELISA) for the determination of a humanized antibody MIL50.Methods RiVax, a mutant of RTA (a chain of ricin) expressed in E.coli, was used as the coating protein.Horseradish peroxidase (HRP) labeled IgG of goats against humans was used to determine MIL 50 captured by RiVax coated on the plate.Results Compared with ricin, RiVax could bind well with MIL50,indicating it could be used as a coating protein to determine MIL50 instead of holotoxin.Using this method, the detective limit of MIL50 in PBST (PBS containing 0.1%Tween 20) could be as low as 0.030 mg/L.The absorbance value of ELISA for MIL50 in the ser-um and homogenate of the liver , spleen, lung, kidney, muscle of rats was lower than that in PBST .Conclusion The sandwich ELISA is a sensitive method for the analysis of distribution of MIL 50 in rat tissues.
5.The effects of natural static magnetic fields on the proliferation of three human hepatocarcinoma cell lines
Jianhua LI ; Yanping CAO ; Tao WU ; Yifan ZHU
Chinese Journal of Physical Medicine and Rehabilitation 2012;34(2):99-102
Objective To observe the effects of a natural static magnetic field (NSMF) on the proliferation of human hepatocarcinoma cells. Methods Three human hepatocarcinoma cell lines ( BEL-7402,HEP G-2 and QGY-7701 ) were cultured under standard conditions and then exposed to NSMFs of 0.1 Tesla at 600 Hz,0.2 Tesla at 250 Hz,0.2 Tesla at 400 Hz or 0.2 Tesla at 500 Hz for 30 minutes daily for 3 or 6 days.Flow cytometry and the XTT cell proliferation assay were used to check apoptosis and the proliferation of cells all groups. Results Only exposure to 0.2 Tesla magnetism at 400 Hz induced apoptosis of the BEL-7402 cell line.None of the NSMFs induced apoptosis in the other 2 hepatocarcinoma cell lines. Conclusions Different reactions of the three hepatocarcinoma cell lines to the same NSMF implies that each cell line has its own features,and that individualized NSMF treatment protocols should be adopted for better clinical outcomes.
6.Mean platelet volume in patients with type 2 diabetes mellitus and coronary artery disease
Wenliang XU ; Yifan CHI ; Yue WU ; Xu WANG ; Yibing SHAO
Chinese Journal of Endocrinology and Metabolism 2013;29(7):586-588
Mean platelet volume (MPV) in patients with type 2 diabetes mellitus (DM) and coronary artery disease was increased significantly.In those with acute coronary syndrome,multi-vascular disease,obesity,and highvalue of HbA1C(>7%),the MPV was much higher.Gisini coronary score,fasting blood glucose,high density lipoprotein cholesterol and HbA1C were the independent predictors of MPV in patients with DM and coronary artery disease.
7.UPLC-Q-TOF/MS analysis of phospholipids metabolite profiling in plasma of type 2 diabetes mellitus rat.
Pingyan ZENG ; Yu ZHANG ; Wen RUI ; Xia WU ; Yifan FENG
Acta Pharmaceutica Sinica 2015;50(7):882-6
This study reported the analysis of plasma phospholipid metabolism of the rats and the pathological biomarkers between the type 2 diabetes model control group (MC) and the normal control group (NC). SD rats were randomly divided into 2 groups: NC and MC. To investigate state of plasma metabolite profiling in normal body, type 2 diabetes mellitus (T2DM) model group using UPLC-Q-TOF/MS which was used as analysis tool in this research. The compounds were identified by UPLC-Q-TOF/MS based on MS/MS fragment ions information, element composition in MassLynx 4.1 and the Lipid Maps database. The sign of two groups of samples in specific markers for screening was through a software package in R software (BioMark software). The results show that the pathological markers were mainly phosphatidylcholine (PC) and triglycerides (TG); the 2-acyl PC in the MC group was less more obviously than that in the NC group; high carbon number and high degree of unsaturation of the TG was reduced under the condition of type 2 diabetes. In the state of type 2 diabetes, metabolic changes occurred in rat plasma phospholipids obviously, which had a close relationship with the occurrence and development of T2DM.
9.Cancer-related fatigue in non-small cell lung cancer patients treated with transcutaneous electrical acupoint stimulation during periods of chemotherapy:an experimental pilot study
Yifan WU ; Lili HOU ; Fen GU ; Ying YU
Chinese Journal of Practical Nursing 2017;33(9):693-698
Objective To explore the effectiveness of transcutaneous electrical acupoint stimulation (TEAS) approach in treating patients with cancer- related fatigue during periods of chemotherapy in non-small cell lung cancer (NSCLC) patients in China. Methods A total of 162 participants who treated with GP chemotherapy were randomly assigned to three groups: 66 cases in control group, 61 cases in TEAS group, 67 cases in Sham TEAS group. The following acupoints were used in this study: Qihai (CV 6), Keshu (UB 17), and Zusanli (ST 36). Participants in TEAS group and Sham TEAS group received eight 30-min sessions of TEAS over 28 days. The Revised Piper Fatigue Scale (RPFS) and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC-QLQ-C30) were used to measure cancer related fatigue (CRF) on the day before chemotherapy days 8 and 28 separately. The differences among three groups were analyzed. Results Finally, 167 patients were included in this study, 56 cases in control group, 57 cases in TEAS group, 49 cases in Sham TEAS group. At the 28th day, the outcomes of the RPFS for TEAS group, Sham TEAS group and control groupscored 2.06 ± 0.90, 2.80 ± 1.34, 3.00 ± 1.29 respectively. There were significantly different among three groups (F=9.784,P<0.01). At the 28th day, the outcomes of the EORTC-QLQ-C30 for TEAS group, Sham TEAS group and control groupscored 64.56 ± 5.00, 54.90 ± 6.25, 54.48 ± 9.68 respectively. There were significantly different among three groups (F=34.119, P<0.01). Conclusions TEAS could help to relived cancer-related fatigue.
10.Steroid 5?-reductase and 5?-reductase type 2 deficiency
Xueyan WU ; Jiangfeng MAO ; Yifan SHI ; Jieying DENG
Basic & Clinical Medicine 2006;0(03):-
Two types of steroid 5?-reductase isozymes were found in human and rats.5?-reductase type 2 deficiency in male lead to male pseudohermaphroditism and other related phenotypes.The content of this review includes:① The progress in the fields of 5?-reductase research;②Biochemical characteristics and physiological effects of 5?-reductase.③ Gene structure and mutation in 5?-reductase genes,clinical and chemical features of 5?-reductase type 2 deficiency syndrome.④Inhibitory agents of 5?-reductase and their mechanism and clinical use.The investigation in 5?-reductase help to illuminate physiological effect and sexual differentiation of androgen.The development of new inhibitory agents for 5?-reductase creats new strategy for diseases caused by imbalance of androgen action.Their mechanism and long effects of clinical use need further investigation and observation.