2.The clinical value of double collagenase injection in treating patients with lumbar intervertebral disc herniation
Da-Peng YU ; Xirong-Hua ;
Journal of Interventional Radiology 1994;0(02):-
Objective To explore the clinical value of double collagenase injection in treating patients with lumbar disc herniation. Methods Thirty one patients with lumbar disc herniation to whom DCI had been applied were analyzed with 15 to 31 months follow-up. Results The therapeutic effects were excellent in 27, good in 3, fail in 1. The total effective rate was 96.7%.Conclusions DCI is a good method in treating lumbar disc herniation with high effectiveness, extensive indications, low complications and profitable clinical application prospectively.
3. Phenolic glycosides and lignans components in Curculigo orchioides Gaertn
Academic Journal of Second Military Medical University 2010;30(2):194-197
Objective: To isolate and identify phenolic glycosides and lignans from the rhizomes of Curculigo orchioides Gaertn. Methods: Phenolic glycosides and lignans were isolated by silica gel, Sephadex LH-20 chromatography and semi-preparative HPLC methods. The structures of the isolated compounds were identified by physiochemical and spectral analysis/ Results: Five phenolic glycosides,one lignan and one sitosterol were isolated and identified from Curculigo orchioides Gaertn, namely, 2,6-dimethoxy benzolic acid(1), curculigoside A(2), curculigoside B(3), curculigine A(4), 4-dichlorine-5-hydroxyl-3-methylphenol-1-O-β- D-glucopyranosyl-(1→-6)-β-3-D-gluco-pyranosede(5), 3,3′,5,5′-tetramethoxy-7,9′:7′,9 -diepoxylignan -4, 4′-di-O-β-D-glucopyranoside(6),and β-sitosterol(7). Conclusion: Seven compounds have been isolated from Curculigo orchioides Gaertn; compound 5 is a new chlorine-containing phenol, and is named as curculigine D.
5.Breeding Selenium-Enriched Yeast by Protoplast Mutagenesis.
Microbiology 1992;0(02):-
This paper studied on breeding selenium-enriched yeast by protoplast mutagenesis. A strain which the content of selenium is the highest is selected from thirteen strains yeast. The optimum conditions to form protoplast are lysed by 1 g/100 mL lywallzyme for 120 min, the formation and regeneration being 95.2% and 21.8% respectively. By mutating breed a strain of A1 which the content of selenium is 821 mg/kg and the amount of dry cell of 0.84 g/100 mL is obtained.
6.Biocompatibility of polycaprolactone with bone marrow stromal cells
Ahmat ; Da-Peng LIU ; Zhen-Bin WANG ;
Chinese Journal of Tissue Engineering Research 2006;10(33):-
BACKGROUND: Bone defect repair is a difficulty in orthopedic field all the time, researches on the tissue engineered bone tissue have provided completely new thoughts and methods for bone defect repair, and it is an important link to detect the biocompatibility of the biomaterials.OBJECTIVE: To investigate the biocompatibility of PCL with bone marrow stromal cells (BMSCs).DESIGN: A controlled observation.SETTING: Department of Orthopaedics, the First Affiliated Hospital of Xinjiang Medical University.MATERIALS: The experiments were carried out in the orthopedic laboratory of the First Affiliated Hospital of Xinjiang Medical University. Healthy 4 to 8-week-old New Zealand rabbits of about 2 kg were used.METHODS: ① Bone marrow was extracted from bilateral femurs of the rabbits, then mixed into 10 mL RPMI1640 complete medium, and then entered the passage culture. ② The cells were inoculated and then divided into PCL group and control group, the cells were only inoculated in the control group, and the BMSCs were co-cultured with PCL in vitro in the PCL group. The morphological observed, cell proliferation, protein content and enzymological determinations were conducted.MAIN OUTCOME MEASURES: The growth and the adhesion of BMSCs on PCL biomaterials were mainly observed.RESULTS: In the control group, most of the BMSCs changed to the shape of fusiform or multi-angles. In the PCL group, the BMSCs could adhere and proliferate on PCL, and the growth and function were not affected, PCL also played a certain role in promoting the cell proliferation.CONCLUSION: PCL possess satisfactory biocompatibility, and it is possible to be used as the carrier of BMSCs in tissue engineering.
7.Therapeutic effect observation on acupuncture plus medication for post-stroke depression
Da-Rui ZHANG ; Xin PENG ; Yong ZHI
Journal of Acupuncture and Tuina Science 2019;17(1):31-36
Objective:To observe the clinical efficacy of acupuncture with medication for post-stroke depression.Methods:A total of 96 patients with post-stroke depression were randomized into an observation group and a control group,with 48 cases in each group.The control group was treated with oral fluoxetine hydrochloride capsules,and the observation group was treated with acupuncture on the basis of the treatment of the control group.After 6 months of treatment,the traditional Chinese medicine (TCM) symptom scores,and Hamilton depression scale (HAMD) component scores and total scores of the two groups before and after treatment were observed,and the clinical efficacy and adverse reaction rate were compared between the two groups.Results:The total effective rate was 95.8% in the observation group and 83.3% in the control group,and the difference between the two groups was statistically significant (P<0.05).After treatment,the intra-group differences in TCM symptom scores and HAMD score of both groups were statistically significant (all P<0.01).In the observation group,the scores of indifferent expression,emotional restlessness,and sentimentality in the TCM symptoms were statistically different from those in the control group (all P<0.01).The scores of desperate factor and sleep disorder factor and total score in HAMD in the observation group were significantly different from those in the control group (all P<0.01).The incidence of adverse reactions was 6.3% in the observation group and 4.2% in the control group,and the difference was not significant between the two groups (P>0.05).Conclusion:Acupuncture plus medication is an effective method for post-stroke depression,and it can further improve the patient's bad mood.
8.A perspective on medical robotics.
Tian-Miao WANG ; Da-Peng ZHANG ; Da LIU
Chinese Journal of Medical Instrumentation 2008;32(4):235-238
Medical robotics has played an increasingly important role in the recent years in robotics field. An overview of the minimally invasive surgery robots, rehabilitative robots and hospital service robots are offered here, and relevant tendencies are also referred to.
Minimally Invasive Surgical Procedures
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instrumentation
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trends
9.Correlation between anterior chamber angle diameter and ciliary sulcus distance measured by Suowei panoramic 50-MHz digital ultrasound blomicroscopy
De-jiao, LI ; Ning-li, WANG ; Da-peng, MU
Chinese Journal of Experimental Ophthalmology 2011;29(10):918-921
Background Measurement of ciliary sulcus distance is important for phakic intraocular lens implantation.Suowei panoramic 50-MHz digital ultrasound biomicroscopy makes it possible for the direct measurement of ciliary sulcus distance.Objective The aim of this study was to investigate the correlation between anterior chamber(AC)angle diameter and ciliary sulcus distance in different AC depth population and offer a clinical guide.Methods The anterior chamber angle diameter and ciliary sulcus distance were measured in 30 right eyes with shallow anterior chamber caused by suspect glaucoma and 30 right eyes with deep anterior chamber dut to the high myopia with Suowei panoramic 50-MHz digital ultrasound biomicroscopy.Three horizontal B-scans with the focal plane approximately at a depth corresponding to the iris plane were acquired for each eye.The differences of the anterior chamber angle diameter and ciliary sulcus distance were calculated and compared between the two groups.The correlation of the anterior chamber angle diameter and ciliary sulcus distance were evaluated in respective group.Results In shallow AC group,the mean angle diameter was(11.49+0.75)mm,the mean ciliary sulcus distance was (10.97±0.86)mm with the mean standard deviation of the difference of(-5.14± 0.55)mm,showing a statistically significant difference(t =-5.092,P =0.000).In shallow AC group,linear regression analysis showed a statistically significant correlation between ciliary sulcus distance and angle diameter(R2=0.593,P=0.000)and the Pearson's correlation coefficient was 0.767.In deep AC group,the angle diameter was(12.69±0.67)mm;while ciliary sulcus distance was(12.31 ± 0.61)mm with the mean slandard deviation(-0.38 ± 0.17)mm,which was statistically significantly different(t=-5.531,P=0.000).The ciliary sulcus distance was found to be linear correlation with the angle diameter(R2 =0.699,P=0.000)and Pearson' s correlation coefficient of 0.836.Conclusions Panoramic ultrasound biomicroscopy is an useful tool to the measurement of ciliary sulcus distance.This study exhibited that the ciliary sulcus distance is significant associated with the anterior chamber angle diameter,which may offer a guide for phakic intraocular lens implantation.