1.Penetration needling for 32 cases of ptosis.
Chinese Acupuncture & Moxibustion 2015;35(5):427-427
Acupuncture Points
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Acupuncture Therapy
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instrumentation
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methods
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Adult
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Blepharoptosis
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therapy
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Female
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Humans
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Male
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Needles
2.Determination of hyperoside in Zhidai tablet by HPLC
Zhihao LI ; Xinjian SUN ; Peng LI
International Journal of Traditional Chinese Medicine 2014;36(2):135-137
Objective To establish a HPLC method for the determination of hyperoside in Zhidai tablet.Method The HPLC system used the Phenomenex LUNA-C18 (4.6 mm× 250 mm,5 μm)column,the mobile phase consisted of acetonitrile (10)-0.1% H3PO4 (90),the flow rate was 1.0 ml/min,the column temperature was set at 30℃,the detection wavelength was set at 360 nm.Results The linear response range was 1.2~24.0 μg/mL(r=0.9998).The average recovery of mangiferin was 98.4%,and RSD was 0.93%.Conclusions The method is simple,rapid,accurate and repeatable.It can be applied in the determination of hyperoside in Zhidai tablet.
3.A finite element model based on medical image for evaluating biomechanical stability of percutaneous vertebroplasty
Xiang CHEN ; Haiyun LI ; Xinjian YANG
Chinese Journal of Tissue Engineering Research 2007;11(9):1796-1800
BACKGROUND: Researches on vitodynamics present that percutaneous vertebroplasty (PVP) can strengthen hardness and intension of single osteoporosis vertebral body after injection of bone cement; however, the infused volume and site of bone cement for maintaining mechanical stability of vertebral body should be further studied.OBJECTIVE: A numerical calculation method on finite element models (FEM) for biomechanical analysis has been developed, while a boundary condition describing the relative L1 -L2 displacement is imposed on the FEM to account for three-dimensional physiological states.DESIGN: Non-randomized control study.SEITING: Beijing Neurosurgical Institute.MATERIALS: One female patient aged 54 years with compressibility fracture at lumbar vertebrae L1-L2 induced by osteoporosis was diagnosed with CT examination, and the patient was told the fact. Based on CT scanning before and after PVP, 90 serial sections with the thickness of 1 mm were obtained and the size of each pixei was 0.33 mm.METHODS: The experiment was carried out Beijing Neurosurgery Institute from October 2005 to June 2006. ①Establishment of three-dimensional FEM: Integrating the anatomical structure from the spine CT and MRI image of a patient, a novel three-dimensional geometric model of lumbar functional spinal units (FSUs) has been built. Meanwhile, 90 serial sections were obtained to exchange data of CT sections and divide imagings. Based on the geometric model, two kinds of three-dimensional FEM of L1-L2 segments for preoperative and postoperative vertebrae were created. ② Model evaluation: The lcad of (500 N, 1 000 N, 1 500 N, 2 000 N, 2 500 N) axial compression were applied to the superior surface of the model in the form of a uniformly concentrated lcad over all L1 superior surface nodes respectively. We could observe the stress distribution of L1-L2 segment by applying the load and clue on the high stress concentration region as the most likely areas fracture.MAIN OUTCOME MEASURES: ① Changes of displacement, stress and strain distributions of FEM at L1-L2 segment of lumbar vertebrae under various loads; ② Effect of increase of bone cement volume on displacement, stress and strain distribution.RESULTS: ① The increase in displacement, stress and strain of FE model with the increase of loading in the postoperarive cases. The tendency was approximately linear which also illustrates the spine have flexible biomechanical characteristics. The region was a common place for injures due to loading. The magnitude of stress in the intervertebral disc depended on the proportion of load applied to the superior surface of the motion segment. The heavier the lcad was, the stronger the stress was. ② With the increase of stress on intervertebral disc, the increasing volume of bone cement could induce transfusion of load of nearby vertebral body.CONCLUSION: Building three-dimensional FEM of L1-L2 segments for preoperative and postoperative PVP can explain three-dimensional physiological status of vertebral body based on calculating relative shift of L1-L2 segment of lumbar vertebrae. Meanwhile, simulative calculation can clearly express distribution of stain and stress and preoperative and postoperative deformity of vertebral body.
4.Effect of propofol on the first spike latency-amplitude curve of rat inferior colliculus neurons
Xinjian ZHANG ; Li SHENG ; Yuanxin ZHANG
Chongqing Medicine 2013;(35):4299-4301
Objective To evaluate effect of propofol on the first spike latency-amplitude curve of rat inferior colliculus neurons and to find out mechanisms that propofol leds to the disappearance of auditory nerve electrophysiological .Methods 43 healthy specefic pathogen free(SPF) grade sprague dawley(SD) rats(weighing 200-250 g) were used to established wakeful animal models by ventilating with animal respirator after infusing vecuronium .A microelectrode was penetrated in the inferior colliculus (IC) ,and then research first spike latency-amplitude(FSL-A) using a Tucker-Davis Technologies System 3(TDT3) before and after intraper-itoneal injection of propofol 100 mg/kg of each 10 minutes interval .Results CFs ranging from 2 .5 to 44 kHz .An acoustic response of neurons showed offset response ,the remaining 42 neurons showed onset response .r2 of FSL-A curve equations are significant difference between administered propofol before and after 10 minutes(P<0 .05) ,all of them are larger than 0 .95(P<0 .05) .FSL-A curve after administration can shift the lower curve and coincident with the previous administration in the same rat .Conclusion Propofol affect auditory information transmission by convert localization of FSL-A curve of rat inferior colliculus neurons ,but does not change the meaning of the information encoded .
5.Effect of several anti-ulcer drugs on the apoptosis and proliferation of gastric mucosa cells in development of stress ulcer in rat
Jing LIU ; Zhaoshen LI ; Xinjian WAN
Medical Journal of Chinese People's Liberation Army 2001;0(11):-
Objective To investigate the effect of antiulcer agents Omeprazole, Misoprostol and Talcid on the gastric mucosa lesion by analyzing the gastric mucosa cell apoptosis and proliferation and CX43 transcriptional expression. Methods Mucosa lesion were evaluated by UI, 32 mice were randomly divided in equal numble into Omprazole (O), Misoprostol (M), Talcid (T), Comparison (C). Apoptosis cells in gastric mucosa were quantitated by terminal deoxynucleatidyl transferase mediared dUTP nick and labelling (TUNEL) techniques, while the expression of PCNA proteins were detected by immunohistochemical staining, CX43 mRNA was detected by In situ hyberdization. at 2h after WRS. Results We found that in comparison with control group, the group of pretreatment with Omeprazole, Misoprostol and Talcid showed a significant reduction in damaged mucosa and epithelial cell apoptosis and increase in the expression of PCNA proteins, and the effect of Omeprazole and Misoprostol was better than Talcid. All three antiulcer agents increased CX43 mRNA expression, the effect of Misoprostol and Talcid was better than Omeprazole. Conclusions Omeprazole, Misoprostol and Talcid can attenuate the multiple gastric mucosa lesion induced by WRS. It may be the ultimate way to prevent and cure stress ulcer by exerting direct cytoprotective effect to improve the cell ability and inhibit stress injury.
6.Study on Smoking-related Health Knowledge and Attitudes and their Association with Smoking Behaviors among High School Students in Shanghai
Xinjian LI ; Haihong YAO ; Jiying XU
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(01):-
Objective To explore smoking -related health knowledge and attitudes and their association with smoking behaviors among high school students in Shanghai. Methods With stratified random sampling, 9239 students aged 11~20 years old from 57 high schools (19 from each of primary, secondary and professional schools) distributing in whole city were investigated with questionnaire which self -completed anonymously by the students. The contents of the questionnaire included smoking behavior, relation between smoking and health, and attitude to tobacco control policies. Results Of those 9 239 students, there were 19.5% (male 28.2%, female 10.2%) of them who ever smoked; the total mean score of their knowledge and attitude to smoking and health-related issues was 54.42?7.274 (the maximum was 65), and the ratio of total mean score and the maximum score was 0.8065, the highest ratio (0.9767) was found in awareness that smoking was harmful and the lowest (0.3825) in awareness of tobacco control rules and regulations. The scores of each smoking and health -related knowledge and attitude were decreased with increase of cigarette number smoked by students. Compared with other high schools, the lowest scores of each indexes and the highest rate of smoking were found in vocational schools. Conclusion It was found that the smoking behavior was related with their knowledge and attitude that smoking was harmful among high school students in Shanghai. And the tobacco control and intervention should be mainly developed in students of vocational schools.
7.An Investigation on Prevalence of Chronic Diseases,and the Awareness and the Demands for Healthcare in Residents aged ≥18 yrs in Shanghai Communities
Minna CHENG ; Sun MIAO ; Xinjian LI
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(02):-
Objective To investigate prevalence of chronic diseases, and the awareness & attitudes, and the health demand of residents aged ≥18 yrs in Shanghai communities. Methods 2 320 residents aged over 18 yrs were selected from 19 communities by multiple stage cluster sampling and questioned by face to face survey. Results The standardized self-reported prevalence rate of whole chronic diseases was 28.4%, hypertension was 21.8%, osteoporosis was 7.0%, diabetes mellitus was 6.3%, respectively, which were ranked the top three. The awareness of the hypertension and diabetes mellitus were accounted to 89.3% and 86.0%. The demands for the convenient and comfortable clinical environment in residents accounted to 80.6%. Conclusion The prevalence of chronic diseases in Shanghai was high. It's suggested to enhance the control and prevention of chronic diseases, particularly on hypertension, and to do more health education in suburbs.
8.Effect of recombinant growth hormone on the aged patients after abdominal surgery
Zhaohui ZHANG ; Xi LI ; Xinjian GONG ;
Parenteral & Enteral Nutrition 1997;0(02):-
Objectives: To research the effects of recombinant human growth hormone(rhGH) with total parenteral nutrition(TPN) on the old patients following abdominal surgery. Methods: 26 old patients receiving TPN after major abdominal surgery were selected and distributed to study group(rhGH+TPN, n =13) and control group(TPN only, n =13).For 7 days after operation, rhGH (8 U/d) or normal saline(in control group) were used. The patients' weight, serum albumin, right hand grip, sleep time and the time of incision cicatrized were determined. Results: The increase of weight, level of plasma albumin, grip power of right hand and sleep time were improved more in study group than those in control group. The incision cicatrized time was also shortened in study group. Conclusions: Growth hormone can promote protein synthesis, accelerate incision healing and reduce the postoperative fatigue syndrome.
9.Study on Quality Standard of Oleanolic Acid Dripping Pills
Xiang LI ; Ying LIANG ; Xinjian YANG
China Pharmacy 2017;28(21):2994-2996
OBJECTIVE:To establish the quality standard of Oleanolic acid dripping pills. METHODS:The property of the preparation was identified,and weight difference and dissolution time limit were detected. UPLC method was adopted to determine the content of oleanolic acid in the preparation. The determination was performed on ACQUITY UPLC BEH C18 column with mo-bile phase consisted of acetonitrile-water (70:30,V/V) at the flow rate of 0.30 mL/min. The detection wavelength was set at 206 nm,the column temperature was 30 ℃,and the sample was 5 μL. RESULTS:The characteristics of the preparation was significant;weight difference ranged 37.62%-46.56%;dissolution time limit was 24 min. Linear range of oleanolic acid ranged 0.006-0.06 mg/mL (r=0.9998). RSDs of precision,stability and reproducibility tests were all lower than 2.0%. The recoveries were 99.34%-100.40%(RSD=0.4%,n=6). CONCLUSIONS:Established standard can be used for quality control of Oleanolic acid dripping pills.
10.Construction of the Medical Field Oriented Retrieval Thesaurus
Yanchao LI ; Yan WANG ; Xinjian JIN
Journal of Medical Informatics 2017;38(5):80-84
The paper analyzes the problems of the specialized databases and search engines during document retrieval and the reasons for constructing retrieval thesaurus in the field of medical field,and establishes a retrieval thesaurus jointly reviewed by sci-tech novelty assessment and subject specialists by taking sci-tech novelty report of the sci-tech novelty station of the Ministry of Education since 2014 as the data sources.The thesaurus applies to sci-tech novelty assessment,document retrieval teaching and other fields,which can also be promoted in other fields.