3.Simultaneous determination of 56 organochlorine and pyrethroid pesticides in traditional Chinese medicines by GC coupled with dual-tower and dual-column.
Zhengwei JIA ; Xiuhong MAO ; Shui MIAO ; Jiwei LU ; Ke CHEN ; Ke WANG ; Shen JI
Acta Pharmaceutica Sinica 2010;45(3):353-8
The paper is to report the establishment of a method for the determination of multi-residue organochlorine and pyrethroid pesticides in traditional Chinese medicines (TCMs). Fifty-six pesticides were extracted by high-speed homogenization, and then purified through gel permeation chromatography (GPC) and solid phase extraction (SPE) cartridges. The residues were simultaneously identified and quantified by GC-ECD equipped with dual tower, dual column and two micro-ECD detectors. The analytical performance was demonstrated by the analysis of 3 TCMs samples' extracts, spiked at three concentration levels for each pesticide. In general, the recoveries ranging from 70% to 110%, with relative standard deviations (RSDs) better than 15%, were obtained. The limit of detection (LOD) for most of the targeted pesticides tested was below 0.01 mg kg(-1). The method had good extraction efficiency, purification effect and good reproducibility, which could be applied to the determination of organochlorine and pyrethroid pesticide residues in the routine analysis of TCMs.
4.Long-term follow-up of Dynesys system in clinical application for the treatment of multiple lumbar degenerative disease.
Hai-ting WU ; Guo-qiang JIANG ; Bin LU ; Ke-feng LUO ; Bing YUE ; Ji-ye LU
China Journal of Orthopaedics and Traumatology 2015;28(11):1000-1005
OBJECTIVETo explore the clinical effects of Dynesys system for the treatment of multiple segment lumbar degenerative disease.
METHODSA total of 28 patients with lumbar degenerative disc disease treated with Dynesys system from December 2008 to May 2011 were retrospectively reviewed. There were 16 males and 12 females, aged from 27 to 75 years old with an average of 49.1 years. Thirteen patients with multiple segmental lumbar intervertebral disc protrusion, including L3-L5 in 7 cases, L2-L4 in 1 case and L4-S1 in 5 cases. Fifteen patients with multiple segmental lumbar spinal stenosis, including L3-L5 in 10 cases, L4-L5 in 4 cases and L2-S1 in 1 case. The symptoms of lumbago and (or) intermittent claudication in all patients were treated with conservative treatments for more than 6 months and these methods did not work. Visual analogue scale (VAS) was used to analyze the lumbar and leg pain, imaging data were used to measure the intervertebral space height and intervertebral motion of fixed segment and upper adjacent segment, Oswestry Disability Index (ODI) was used to evaluate the clinical effect.
RESULTSAll operations were successful and the patients were followed up from 38 to 65 months with an average 50.6 months. At final follow-up, ODI and VAS of the low back pain and leg pain were (25.10±6.52)%, (1.25±0.70) points and (1.29±0.89) points, respectively and were decreased compared with preoperative (P<0.05). Postoperative intervertebral space heights were increased and intervertebral motions were decreased in fixed segment compared with preoperative (P<0.05). There were no significant differences in intervertebral space heights and intervertebral motions of upper adjacent segment between preoperative and postoperative (P>0.05).
CONCLUSIONDynesys system may obtain long-term clinical curative effect in treating multiple lumbar degenerative disease. It can partially preserve the intervertebral motions of the fixed segments, have little effect on adjacent segments. The long-term clinical effect of Dynesys still need longer time follow-up observation.
Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Degeneration ; pathology ; surgery ; Joint Instability ; Lumbar Vertebrae ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Visual Analog Scale
5.Clinical application of dynamic neutralization system (K-Rod) in treating multisegmental lumbar degenerative disease.
Bing YUE ; Guo-qiang JIANG ; Bin LU ; Jia OUYANG ; Ke-feng LUO ; Ji-ye LU ; Chao-lu SHI
China Journal of Orthopaedics and Traumatology 2015;28(11):988-993
OBJECTIVETo evaluate the clinical effects of dynamic neutralization system (K-Rod) in treating multisegmental lumbar degenerative disease.
METHODSFrom October 2011 to October 2013, 20 patients with multisegmental lumbar degenerative disease were treated with dynamic neutralization system (K-Rod). There were 8 males and 12 females with an average age of 45.4 years old (ranged from 31 to 65) and an average course of 3.8 years (ranged from 9 months to 6.25 years). All patients had the history of low back and legs pain. Among them, 10 cases were far lateral lumbar disc herniation, 7 cases were lumbar spinal stenosis, 3 cases were lumbar spondylolisthesis (degree I in 2 cases and degree II in 1 case). Every patient had only one responsible segment which causing the symptom would have to be rigidly fixed during operations, and the adjacent intervertebral disc of the responsible segments at least 1 segment has already obvious degenerated. All patients underwent the operation to relieve compressed nerves and reconstruct spinal stability with K-Rod system (the responsible segments were fixed with interbody fusion, and the adjacent segments were fixed with dynamic stabilization). Visual analogue scale (VAS), Japanese Orthopaedic Association Scores (JOA) and Oswestry Disability Index (ODI) were used to evaluate the clinical effects. Imaging data were used to analyze the range of motion (ROM), intervertebral disc height and intervertebral disc signal (according to modified Pfirrmann grading system) in degenerative adjacent segment.
RESULTSAll patients were followed up for more than 1 year, and preoperative symptoms obviously relieved. There were significant differences in VAS, JOA, ODI between preoperative and postoperative (postoperative at 1 week and 1 year) (P<0.05). Radiological examination showed that all responsible segments had already fused, and no looseness, displacement and breakage of internal fixations were found. Postoperative at 1 year, the ROM of adjacent segments were decreased (P<0.05). There was no significant difference in intervertebral disc height between preoperative and postoperative at 1 year (P>0.05). According to modified Pfirrmann grading system to classification for the 25 disks of adjacent segment, 8 disks (32%) got improvement, 15 disks (60%) got no change and 2 disks (8%) got aggravation at 1 year after operation.
CONCLUSIONDynamic neutralization system (K-Rod) combined with interbody fusion could obtain short-term clinical effects in the treatment of multisegmental lumbar degenerative disease.
Adult ; Aged ; Female ; Humans ; Intervertebral Disc Displacement ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Range of Motion, Articular ; Spinal Diseases ; surgery ; Spinal Fusion ; methods ; Spinal Stenosis ; surgery ; Spondylolisthesis ; surgery
7.Solid phase extraction-gas chromatography with dual tower and dual column for the simultaneous determination of 53 organophosphorus pesticides in traditional Chinese herbal medicines
Jiwei LU ; Shui MAO ; Xiuhong MAO ; Zhengwei JIA ; Ke WANG ; Shen JI
Chinese Traditional Patent Medicine 2010;(1):94-99
AIM: The multi-residues method was used to determine organophosphorus pesticides in traditional Chinese herbal medicines (TCHMs).METHODS: Fifty three pesticides were extracted by high-speed homogenization,and then cleaned sequentially by C_(18) and Carb/NH2 solid phase extraction (SPE) cartridges.The residues were simultaneously identified and quantified by GC-FPD equipped with dual tower,dual column and two FPD detectors.RESULTS: The analytical performance was demonstrated by the analysis of 6 TCHMs samples extracts,spiked at three concentration levels for each pesticide.In general,the recoveries ranging from 70% to 120%,with relative standard deviations (RSDs) less than 15%,were obtained.The limit of detection (LOD) for most of the targeted pesticides tested was below 0.01 mg/kg.CONCLUSION: The method has good extraction efficiency,purification effect and good reproducibility,which can be applied to the determination of organophosphorus pesticide residues in the routine analysis of TCHMs.
8.HPLC for the simultaneous determination of 13 pesticides in traditional Chinese herbal medicines
Xiuhong MAO ; Zhengwei JIA ; Shui MIAO ; Jiwei LU ; Ke WANG ; Shen JI
Chinese Traditional Patent Medicine 2010;(3):454-459
AIM:To study a method for the determination of 13 N-methylcarbamate peticides in traditional Chinese herbal medicines(TCHMs).METHODS:Thirteen pesticides were extracted by acetonitrile,and purified through solid phase extraction(SPE)cartridges,then detected by HPLC with post-column derivatization and Fluorescense Detector excited wavelength was 330 nm,emissive wavelength was 465 nm.RESULTS:The analytical performance was demonstrated by the analysis of 6 TCHMs samples' extracts,spiked at three concentration levels for each pesticide.In general,the recoveries ranging from 74.1 to 108.8%,with relative standard deviations(RSDs)better than 15%,were obtained.The limit of quantification(LOD)of 13 pesticides from 0.000 3 to 0.06 mg/kg.CONCLUSION:The method has good extraction efficiency and purification effect,which could be standard of N-methylcarbamate peticides residues in the routine analysis of TCMs.
9.Pondering on syndrome differentiation of diseases.
Chinese Journal of Integrated Traditional and Western Medicine 2005;25(9):843-845
The disease classification in Western medicine and syndrome differentiation in traditional Chinese medicine were comparatively analyzed in this paper. It is proposed that the research on syndrome differentiation of disease classification is one of the cut-in points in integrative medicine research, and indicated that the research may be deepened by way of TCM syndrome classification based on diagnosis and on therapeutic efficacy.
Diagnosis, Differential
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Disease
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classification
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Humans
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Medicine, Chinese Traditional
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methods
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trends
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Research Design
10.Situation of integrative medicine in China: results from a national survey in 2004.
Chinese journal of integrative medicine 2006;12(3):161-165
Integrative medicine (IM), usually called integrated traditional and Western medicine in China, which came into being in the 1950s as a new form of medicine, although is now developing quickly, little is known about its status and existing problems. So a national survey in China was conducted through questionnaire in 2004 by Chinese Association of Integrative Medicine with the support of State Administration of Traditional Chinese Medicine (SATCM). The results show that, of all the medical professionals investigated in this survey, 91.21% and 93.52% respondents respectively favored IM as the best diagnostic and therapeutic method. Of all the patients who once went through TCM, Western medicine (WM) and IM therapies, 68.85%, 65.45% and 71.2% respondents respectively most appreciated IM, IM hospitals and IM therapeutic treatments. Most of the 6 595 respondents held that the optimal scientific research strategy in TCM should be integrating modern medical research method (n = 2 380) or modern scientific method (n = 2 920). However, many hospitals exposed the problems in the aspects of governmental supports and funding supports, human resources, and domestic or international academic activities. These results indicated that IM is the patients' social needs and doctors' aspiration in China. For further development of IM, the enhancement of scientific research construction and assistance by policies and finance from the government and other institutions are urgently needed in China.
Attitude of Health Personnel
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China
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Delivery of Health Care, Integrated
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Health Care Surveys
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Humans
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Medicine, Chinese Traditional
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National Health Programs
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Patient Satisfaction
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Physicians
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psychology
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Surveys and Questionnaires