1.One case of benzene induced acute leukemia.
Chang-ming REN ; Wen-da LUO ; Chang-wei FENG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(1):20-20
Acute Disease
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Adult
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Benzene
;
poisoning
;
Female
;
Humans
;
Leukemia
;
chemically induced
;
Occupational Exposure
;
adverse effects
2.Studies on chemical constituents in fresh fleshy scaleleaf of Lilium lancifolium.
Wen-yan HU ; Jin-ao DUAN ; Da-wei QIAN ; Da-wei WANG
China Journal of Chinese Materia Medica 2007;32(16):1656-1659
OBJECTIVETo study the chemical constituents in fresh fleshyscaleaf of Lilium lancifolium.
METHODThe constituents were separated. by various kinds of chromatography and their structures were identified on the basis of spectral analysis.
RESULTTen compounds were identified regaloside A (1), regaloside C (2), methyl-a-D-mannopyranosid (3), methyl-ca-D-glucopyranoside (4), (25R, 26R) -26-methoxyspirost-5-ene-3p-yl-O-ca-L-rhamnopyranosyl-(1-->2)-[beta-D-glucopyranosyl-(1-->6)]-beta-D-glucopyranoside (5), (25R)-spirost-5-ene-3beta-yl-O-alpha-L-rhamnopyranosyl-(1-->2)-[beta-D-glucopyranosyl-(1-->6)]-beta-D-glucopyranoside (6), (25R, 26R)-17alpha-hydroxy-26-methoxyspirost-5-ene-3beta-yl-O-alpha-L-rhamnopyranosyl-(1-->2)-[beta-D-glucopyra nosyl-(1-->6)]-beta-D-glucopyranoside (7), daucosterol (8), adenoside (9), berberine (10).
CONCLUSIONAll compounds except 1 and 3 were isolated from this species for the first time, and berberine was first reported in genus Lilium.
Berberine ; chemistry ; isolation & purification ; Lilium ; chemistry ; Plant Leaves ; chemistry ; Plants, Medicinal ; chemistry ; Saponins ; chemistry ; isolation & purification
3.Similarity between leaves of Nauclea officinalis and stems of Nauclea officinalis.
Yuan-pei LIAN ; Da-wen XIE ; Shao-wei YUAN ; Yan-jing LI ; Gang DING ; Wen-zhe HUANG ; Wei XIAO
China Journal of Chinese Materia Medica 2015;40(22):4433-4441
The study is to develop a method to determine 3 batches leaves of Nauclea officinalis and stems of N. officinalis by HPLC. The differences between strictosamide contents and fingerprints was compared, then chromatographic peak of fingerprints was validated with the assistance of LC-MS. The strictosamide contents in stems of N. officinalis were higher than leaves of N. officinalis. The main chemical composition in leaves of N. officinalis and stems of N. officinalis were alkaloid which revealed by LC-MS. There are 7 chemical compositions were same between them, but the chemical composition in leaves of N. officinalis is more than stems of N. officinalis. This provides a scientific basis for the development of the potential medicinal value of leaves of N. officinalis and the sustainable utilization of N. officinalis.
Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
;
isolation & purification
;
Molecular Structure
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Plant Leaves
;
chemistry
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Plant Stems
;
chemistry
;
Rubiaceae
;
chemistry
;
Spectrometry, Mass, Electrospray Ionization
4.Identification opportunity for several types of eye injuries.
Wen-tao XIA ; Da-an DONG ; Hong-wei YU
Journal of Forensic Medicine 2003;19(3):129-132
OBJECTIVE:
To study the stability duration of visual acuity after eye injuries in several types, in order to define the earliest and best opportunity for identification.
METHODS:
160 cases were divided into five groups, in which their stable visual acuity after injuries were divided into several ranges. Then the relationship between stability duration of visual acuity and their visual acuity level, as well as eye injury types were analyzed.
RESULTS:
Significant correlation existed between eye injury types, stable visual acuity level and stability duration of visual acuity after injuries.
CONCLUSION
The earliest and best opportunity for identification after eyes injuries related to injury types and visual acuity level.
Adolescent
;
Adult
;
Child
;
Eye Injuries/complications*
;
Female
;
Forensic Medicine
;
Humans
;
Male
;
Middle Aged
;
Time Factors
;
Trauma Severity Indices
;
Vision Disorders/etiology*
;
Visual Acuity
5.Analysis of pesticides in blood specimen by GC/MS with accelerated solvent extraction.
Wen-hai LI ; Da-wei LIN ; Hong-lei SUN ; Maimaitituxun MUTAILIFU ; Lei WANG
Journal of Forensic Medicine 2014;30(6):463-465
OBJECTIVE:
To develop the accelerated solvent extraction (ASE) for determining pesticides present in blood samples.
METHODS:
Pesticides were extracted by ASE with optimized parameters to study recovery rate affected by extraction temperature, time and agent. GC/MS was used to perform quantitative analysis.
RESULTS:
The recovery rates of eight pesticides were 70.6%-92.4%. The coefficient of variation was less than 5.0%. A good linear relationship was obtained at the concentration range of 0.5-5.0 microg/mL.
CONCLUSION
The method was fast and simple with high recovery rate and good repeatability. It can be applied to analyze pesticides present in the blood specimen.
Chromatography, Liquid
;
Gas Chromatography-Mass Spectrometry
;
Pesticides/blood*
;
Solvents
;
Temperature
;
Time Factors
6.Determination of five pesticides in fishpond by SPE-GC/MS.
Da-Wei LIN ; Yan ZHANG ; Hong-Lei SUN ; Wen-Hai LI ; Kai SHAO
Journal of Forensic Medicine 2015;31(1):41-43
OBJECTIVE:
To establish the solid phase extraction (SPE) with GC/MS technology for fish poisoning cases to determine five pesticides in fishpond.
METHODS:
By three solid phase extraction column including Oasis HLB cartridge, Bond Elut C18 and SampliQ C18, the recovery rate was compared to extract and purify five pesticides in fishpond. The effects of different kinds and dosages of eluents on extract rate were also reviewed.
RESULTS
Using Bond Elut C18 as solid phase extraction column and 3 mL benzene as eluent, the linear range of mass concentration of five pesticides in fishpond was 1-50 μg/mL, and the correlation coefficient was 0.996 2-0.999 6. The limit of detection was 3.4-26 μg/L and the recovery was 61.49%-102.48%. The relative standard deviations was less than or equal to 3.01%. CONCLU-SION: With high sensitivity, good accuracy and precision, SPE-GC/MS has simple and quick operation and less solvent. It can be applied to determination of five pesticides in fishpond.
Gas Chromatography-Mass Spectrometry/methods*
;
Pesticides/isolation & purification*
;
Solid Phase Extraction
;
Solvents
;
Water Pollutants, Chemical/isolation & purification*
7.Inhibitory impacts of Niaoluqing on urogenital Chlamydia trachomatis in vitro.
Xiao-Qing ZHANG ; Yuan LU ; Da-Can CHEN ; Wen HE ; Yi WENG ; Da-Yun XU ; Guo-Wei XUAN
National Journal of Andrology 2005;11(11):870-872
OBJECTIVETo explore the inhibitory effects of Niaoluqing, an oral liquid of traditional Chinese medicine, on the growth of urogenital chlamydia trachomatis (Ct).
METHODSNiaoluqing's applying concentration was 1 g/ml and 10 serologically untyped strains of Ct from the STD clinic were used. And the inhibitory effects of Niaoluqing on Ct was evaluated by McCoy cell microculture technique in vitro.
RESULTSNiaoluqing had inhibitory activity for urogenital Ct, and was capable of reducing inclusion numbers notably in the concentrations of 50 to 200 mg/ml. The number and volume of Ct inclusions reduced gradually and disappeared finally with the rising of the medicinal concentration.
CONCLUSIONThe traditional Chinese medicine Niaoluqing has inhibitory effects on the growth of urogenital Ct.
Chlamydia trachomatis ; drug effects ; isolation & purification ; Dose-Response Relationship, Drug ; Drugs, Chinese Herbal ; pharmacology ; Female ; Humans ; Male ; Microbial Sensitivity Tests ; Urogenital System ; microbiology
9.Experimental study on the Sanxiansinli capsule against fatigue and viability of mice.
Zai-ling SUN ; Da-wen WEI ; Jun-mei ZHAO ; Xiao-jun SHEN
China Journal of Chinese Materia Medica 2006;31(5):416-418
OBJECTIVETo investigate the effect of the Sanxianxinli capsule against fatigue and viability of mice.
METHODThe mouse shinning, burden swimming, heat-resistant, cold resistant and tolerating anoxia were detected by experiment.
RESULTThe results showed that the Sanxansinli capsule have function of improveing the stamina, cold resistant, heat-resistant and tolerating anoxia,and prolonging were the survival time in cold, high temperature and anoxia.
CONCLUSIONThe Sanxianxinli capsule have function against fatigue and can also improve the resistibility of body.
Animals ; Capsules ; Cold Temperature ; Curculigo ; chemistry ; Drug Combinations ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Epimedium ; chemistry ; Fatigue ; physiopathology ; Hot Temperature ; Hypoxia, Brain ; physiopathology ; Male ; Mice ; Oxygen Consumption ; drug effects ; Physical Endurance ; drug effects ; Plants, Medicinal ; chemistry
10.Clinical effect of circumcision stapler in the treatment of phimosis and redundant prepuce.
Zhong-chao HUO ; Gang LIU ; Wei WANG ; Da-guang HE ; Hai YU ; Wen-ju FAN ; Zheng ZHONG
National Journal of Andrology 2015;21(4):330-333
OBJECTIVETo observe the clinical effect and safety of circumcision stapler in the treatment of phimosis and redundant prepuce.
METHODSWe treated 120 patients with redundant prepuce or phimosis using circumcision stapler and another 60 by conventional dorsal-incision circumcision. We observed intraoperative blood loss, operation time, postoperative pain, wound healing time, cosmetic appearance of the penis, and postoperative complications and compared them between the two groups of patients.
RESULTSStapler circumcision showed obvious advantages over the conventional method in intraoperative blood loss ([2. 3 ± 1. 3] vs [15.6 ± 2.9] ml), operation time ([7.1 ± 1.4] vs [22.6 ± 4.6] min), wound healing time ([12.0 ± 2.9] as [16.3 ± 3. 1] d), postoperative pain score (1. 9 ± 1. 3 vs 5. 2 ± 1. 7), incision edema, and cosmetic appearance of the penis (all P <0. 05). Besides, stapler circumcision exempted the patients from stitch-removal pain. However, the incidence rate of postoperative local ecchymosis was significantly higher in the circumcision stapler group than in the conventional circumcision group (20. 8% vs 8. 3% , P <0. 05).
CONCLUSIONCircumcision stapler, with its advantages of easier manipulation, shorter operation time, better cosmetic penile appearance, less pain, and fewer complications, is superior to conventional circumcision in the treatment of phimosis and redundant prepuce.
Blood Loss, Surgical ; Circumcision, Male ; instrumentation ; methods ; Ecchymosis ; etiology ; Humans ; Male ; Pain, Postoperative ; Penis ; abnormalities ; Phimosis ; therapy ; Postoperative Complications ; Postoperative Period ; Surgical Staplers ; adverse effects ; Wound Healing