1.Analysis on the prognosis effect after health management intervention of chronic prostatitis
Chinese Journal of Health Management 2008;2(3):143-145
Objective To investigation the relationship between health management and prognosis of chronic prostatitis. Methods Three hundied and forty-six cases of chronic prostatitis were divided into two groups. The control group treatment was local washing and medicine for three months. The experiment group treatment was local washing, medicine, and health management for three months. NIH-CPSI was used for the results. Results There was no significant different between the experimental group(165 cases)and the control group(154 cases)before treatment in NIH-CPSI. The effective rate of the the experimental group was 88.5%, and that of the control group was 64.9% after treatment. It is effective for cure and the prognosis of the experiment was better than the control (P<0.05). Conclusion It is suggested that it is more effective for the prognosis of chronic prostatitis after the intervention of health management.
2.Study on volume-pressure relationship during the progression of an acute intracranial space-occupying lesion in dogs
Journal of Third Military Medical University 1988;0(05):-
An inflatable liquid epidural balloon was used to simulate an intracranial space-occupying lesion.Two groups of dogs with 8 in each were employed.Under different conditions and time intervals,intracranial pressure(ICP)was continuously recorded,and pressure-volume index(PVI),volume-pressure response(VPR),and cerebrospinal fluid pulse pressure(CSFPP)were measured silmutaneously.It was found that PVI was in significant negative linear correlation with ICP,while VPR and CSFPP in significant positive linear correlation with IVP(P
3.Presentation and DSP Implementation of Wavelet Zero-cross Stimulation Strategy for Cochlear Implants
Chinese Medical Equipment Journal 2003;0(11):-
Objective To introduce the wavelet zero -cross stimulation algorithm and based on which to design and implement the cochlear implants. Methods Through DSP and ICETEK-VC5416, the WZS speech coding strategy was simulated, and also the presented WZS strategy was compared to CIS strategy by hardware implementation and computer simulation. Results The processed audio signals, output from eight channels, were synthesized and played through loudhailer and could be heard with high fidelity. Conclusion The wavelet zero-cross stimulation(WZS) strategy, which generates stimulating pulsatile series at zero-cross points in the domain of wavelet transform, can keep the temporal correlation and coherence of speech remained in stimulating pulsatile series and reflects the characteristic of temporal coding for cochlea.
4.Application of LeFort I osteotomy in the treatment of old maxillary fracture
Jiawu LIU ; Lei LIU ; Weidong TIAN
Journal of Practical Stomatology 2001;0(01):-
Objective:To study the effects of LeFort I osteotomy in the treatment of old maxillary fracture.Methods:30 patients with old maxillary fracture were treated with LeFort I osteotomy,the rehabilitation of occluding relation and masticatory function were observed after operation.Results:28 patients had well-pleasing occluding relation and masticatory function; 2 patients dissatisfied with their masticatory function, because of unbalance of nerve-muscle after their occlusal plane were rebuilt.Conclusion:LeFort I osteotomy can be a method in the treatment of old maxillary fracture.
5.Research on influence of different syringe types on quality control of syringe pump.
Hongyun LIU ; Hao HUANG ; Weidong WANG
Journal of Biomedical Engineering 2014;31(6):1316-1324
To evaluate the influence of different brands of syringes on performance parameters and application quality of syringe pump, we carried out matching experiment of infusion/syringe pump analyzer Rigel Multi-Flo, made by ALK Co. in Sweden, for 3 different types of syringes to measure the flow rate, occlusion alarm pressure, occlusion time and bolus volume of 26 syringe pumps. Data of quality control were analyzed with statistical method. The results demonstrated that there were significant differences in the flow rate, occlusion alarm pressure, occlusion time and bolus volume (P<0. 01) between those of common syringes and original syringes. This study points out that the health care providers should select compatible syringes for syringe pumps, which provides evidence and guidance to assure the reasonable and safe application of syringe pumps in clinical practice.
Infusion Pumps
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Quality Control
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Syringes
6.Effect of insulin-like growth factor Ⅰ and basic fibroblast growth factor on proliferation and differentiation of human dental papilla mesenchymal cells
Jiamin XIE ; Weidong TIAN ; Lei LIU
Chinese Journal of Tissue Engineering Research 2010;14(1):70-74
BACKGROUND: Previous research has indicated that both insulin-like growth factor Ⅰ (IGF-Ⅰ) and basic fibroblast growth factor (bFGF) play an important role in cell proliferation and differentiation. However, the effect on biological characteristics of human dental papilla mesenchymal cells (hDPMCs) still remains unclear. OBJECTIVE: To research the effect of IGF-Ⅰ and bFGF on the proliferation and differentiation of hDPMCs.METHODS: hDPMCs were isolated and cultured in DMEM/F12 culture media containing 1% or 10% fetal bovine serum. The fourth-passaged hDPMCs were incubated in culture media containing 0, 0.1, 1, 10 and 100 μg/L bFGF and 0, 25, 50, 75 and 100 μg/L IGF-Ⅰ(0 μg/L as control group), respectively. At 96 hours after culture, proliferative activity was measured with MTT assay. The corresponding growth factor culture media were used in 10 μg/L bFGF group, 100 μg/L IGF-Ⅰgroup, bFGF + IGF-Ⅰ group, and control group, respectively. At days 1, 3, 5, and 7 after culture, the proliferative activity was detected using MTT assay, and alkaline phosphatase (ALP) activity was measured using modified enzyme kinetics method. RESULTS AND CONCLUSION: At the 0-100 μg/L mass concentration scope, both bFGF and IGF-Ⅰcould accelerate proliferation of hDPMCs, and the proliferation ability of bFGF was superior to that of IGF-Ⅰ; moreover, the combination of bFGF and IGF-Ⅰcaused a synergetic action to proliferation of hDPMCs. The maximal valid concentration of bFGF was 10 μg/L, and the maximal action concentration of IGF-Ⅰwas 100 μg/L. At 0-7 days, the effect of bFGF on the ALP activity of hDPMCs was not obvious, but the effect of IGF-Ⅰon ALP activity of hDPMCs became greater with the time passing; furthermore, the combination of bFGF and IGF-Ⅰcould generate a synergetic action on increasing the ALP activity.
7.Exploration on the construction of 'grid type' pharmacy teaching comprehensive laboratory in newly-built university
Juanjuan YUE ; Weidong LIU ; Zhenwei WANG
Chinese Journal of Medical Education Research 2012;11(8):822-824
The construction of on campus practice base is crucial for improving the quality of practical teaching.We put forward a construction pattern of‘grid type' pharmacy teaching comprehensive laboratory.It covers three-leveled experimental platform and professional teaching laboratory according to the research and development process of new drug.It also forms the communication network between learning and working demand of students.This provides new ideas for the construction of pharmacy teaching laboratory in newly-built university.
10.Determination of N,N-Dimethylformamide in oligosaccharide of medicine by Gas Chromatography
Li LIU ; Yuqin WANG ; Weidong ZHANG
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: The quantitative determination of N,N-dimethylf in olgosaccharide was carried out. METHODS: Gas Chromatographic was employed. RESULTS: Experimental results showed that a good separation of DMF with other contents of sample was achieved on FFAP(50 m?0.32 mm) column,and the separation degree was more than 1.5.The linear range was 3.58~0.000358 mg/mL with r=0.999 9 and the relative standard deviation was 1.52%(n=5).and the limit of detection was 1.0 mg/mL.The recovery of the method was in the range of 95.7%~98.4%. CONCLUSION: The method is simple,rapid,accurate and precise.