1.Experimental research on non-invasive near-infrared detection of early hepatocirrhosis.
Xiaofang ZHANG ; Jianjun LIU ; Zeping XIE
Journal of Biomedical Engineering 2005;22(4):795-797
This experiment was carried out to make an exaluation on the non-invasive near-infrared detection of early hepatocirrhosis. The model of early hepatocirrhosis was established by injecting carbon tetrachloride in mice. Blood and oxygen content in liver tissue were detected with Runman System. The undulated forms of blood and oxygen variation were extracted and analyzed under the software MATLAB. Non-invasive near-infrared detection was found to react sensitively to the variation of the blood and oxygen content in the early hepatocirrhosis. The rhythm of the undulated forms of blood and oxygen in the early hepatocirrhosis was irregular. The main frequency peak of auto-power spectrum was found to move back to the rang 1.0-1.5 Hz and multi-peak was seen. These show that the non-invasive near-infrared detection is of some value in detecting early hepatocirrhosis.
Animals
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Carbon Tetrachloride
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Carbon Tetrachloride Poisoning
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Early Diagnosis
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Liver
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blood supply
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Liver Cirrhosis
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chemically induced
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diagnosis
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Mice
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Oximetry
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methods
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Oxygen
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blood
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Regional Blood Flow
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Spectroscopy, Near-Infrared
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methods
2.Effect of Motomed Gracile on Function of Lower Limbs in Children with Spastic Cerebral Palsy
Min SHEN ; Zeping LI ; Yan CUI ; Lihong KANG ; Zhijiao XIE ; Xuehua YAO ; Qiuyan GU
Chinese Journal of Rehabilitation Theory and Practice 2009;15(9):828-829
Objective To observe the effect of Motomed Gracile on spastic cerebral palsy. Methods 48 cerebral palsy children were divided into two groups: intervention group (n=24) and control group (n=24). The children in the control group accepted comprehensive rehabilitation, while the children in the intervention group were trained with Motomed Gracile in addition. They were evaluated with Ashworth Assessment and manual muscle testing (MMT) 6 months after treatment. Results The scores of intervention group improved more significantly than those in control group (P<0.05). Conclusion Motomed Gracile can facilitate the recovery of children with spastic cerebral palsy.
3.The relation of metabolic electrolyte disturbance and multi-organ functional disturbance on severe actue mountain sickness patients
Bihai ZHENG ; Suzhi LI ; Xun LI ; Yue HUANG ; Chuncheng YAN ; Jianbao ZHEN ; Xiaobo ZHOU ; Xiaomian XIE ; Zeping SUN ; Shangshi LI
Chinese Journal of Endocrinology and Metabolism 2009;25(3):306-307
Electrolyte disturbance was prominent in patients with severe acute mountain sickness. In these patients hypoxia caused water and salt retension together with vasoactive substances and excessive free radicals might play important roles in the development of multiple organ dysfunction syndrome (MODS). More attention should be given to electrolyte monitoring in dealing with these severe mountain sickness in field.
4.Development and validation of near-infrared brain blood-oxygen monitor.
Zhao QIN ; Kaiyang LI ; Xuandong YANG ; Lijun LIU ; Zeping XIE
Journal of Biomedical Engineering 2007;24(6):1220-1223
The main purpose of this paper is to describe the design and development of the near-infrared blood-oxygen monitor which is based on the theory of detecting the blood-oxygen parameters of tissue by near-infrared, and the monitor can detect the blood-oxygen parameters of two sides of the local brain tissue. The monitor uses two wavelength ultra-high light LED as lamp-house, and two sensors detect the light scattered by two sides of the local brain tissue, which make the monitor achieve the function of dual detector. The appearance of the monitor's detector is designed to reduce effectively the noise brought by the background and alleviate the discomfort feelings of the patient. At the same time, this apparatus can monitor continuously the brain blood-oxygen parameters of the patients in real time, and output the curves of the blood-oxygen and oxygen concentration of two sides of brain tissue. At last, the biological model experiments and the tests in clinical setting validate the monitor.
Blood Gas Analysis
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instrumentation
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methods
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Brain
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blood supply
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Humans
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Monitoring, Physiologic
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instrumentation
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Oximetry
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instrumentation
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methods
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Oxygen
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blood
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Spectroscopy, Near-Infrared
5.The overall progress and challenges of Shanghai health care for the last 30 years since reform and opening up
Tiehui WENG ; Lingfang WU ; Xuefeng LIU ; Jun LIU ; Mingzhong YE ; Shuqiong WANG ; Zeping XIAO ; Weijun HAN ; Jianguang XU ; Longxing WANG ; Guangwen GAO ; Chunyan XIE
Chinese Journal of Hospital Administration 2011;27(7):490-493
Marked by the Third Plenary Session of the Eleventh Central Committee of the CPC, Shanghai health care started a journey of reform and opening up as with other sectors. This essay reviews various stages Shanghai health care experienced and the achievements for the last 30 years since reform and opening up, and analyzes the challenges Shanghai health care faces currently. On this basis, the essay summaries the experiences and lessons learned from Shanghai health care reform and development.
6.Determination of Related Substances in 20(S)-Protopanaxadiol Bulk Drug by HPLC
WANG Jingmin ; FU Xinzhen ; QU Guiwu ; KOU Lijuan ; GUO Lin ; ZHANG Shumin ; LIU Ke ; XIE Zeping
Chinese Journal of Modern Applied Pharmacy 2023;40(18):2562-2568
OBJECTIVE To establish a high-performance liquid chromatographic method for the detection of 10 related substances in 20(S)-protopanaxadiol bulk drug. METHODS Used an ACQUITY UPLC BEH C18 chromatographic column with ultrapure water(A)-acetonitrile(B) as mobile phase. The flow rate was 0.20-0.25 mL·min-1, the detection wavelength was set at 203 nm, the column temperature was maintained at 35℃, and the injection volume was 5 μL. RESULTS 20(S)-protopanaxadiol and various impurities had reached an effective separation with a good linear relationship; the sample recovery(n=9) was ranging from 94.8% to 102.2%. The RSD values were <2.0%; the intra-day and inter-day precision RSD values were<2.0%, with a good precision; the related substances C, F, H, and I were stable in solution with RSD values<2.0% in 48 h at the room temperature; while impurities A, B, D, E, G and J were unstable under the same condition with RSD>2.0%. CONCLUSION The method is simple, sensitive and accurate, which can simultaneously determine 10 related substances in API 20(S)-protopanaxadiol, which can effectively identify the relevant substances in API and provide reference for the improvement of its production process and quality control.