2.Not Available.
Yi XU ; Yuan yuan CHEN ; Min CHEN ; He wen DONG ; Kai fei DENG ; Feng ping YAN ; Jian hua ZHANG
Journal of Forensic Medicine 2022;38(2):295-297
3.Effects of Ginsenoside Re on MDA Content and SOD Activity in Rats with Exercise-induced Fatigue
Yichong FENG ; Ziming ZHAO ; Yuan CHEN ; Huashan PAN ; Jiahong LI ; Bogao BIAN ; Xi WEN
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(06):-
Objective This report describes the mechanism of Ginsenoside Re to resist Exercise-induced fatigue based on the observation of effects on MDA content and SOD activity.Methods Thirty male SD rats were divided into 3 groups randomly:Ginsenoside Re group,model group and control group,10 rats in each group.Rats in Ginsenoside Re group were given gastric gavage of Ginsenoside Re once a day,while rats in model and control groups were given the same volume of normal saline.One hour after administration,rats of Ginsenoside Re groups and Model groups received medium-intensity treadmill exercise for 20 minutes at the speed of 15m/min,with a slope of 0 degree,and after 40-mimute break repeated it for another 20minutes.Fourteen days later,MDA content and SOD activity have been tested.Results MDA content in the serum,liver tissue and muscle tissue of Ginsenoside Re group was obviously lower than that in the model group (P
4.Determination of trans-1,1,1,4,4,4-hexafluoro-2-butene in workplace air by gas chromatography
HU Jia wen CHEN Jia chun YUAN Jing WU Fan RONG Wei feng SHAO Jun li
China Occupational Medicine 2022;49(05):582-
Objective - ,,,,,- - -
To establish a gas chromatographic method for the determination of trans 1 1 1 4 4 4 hexafluoro 2
[ - ()] Methods - ()
butene HFO 1366mzz E in workplace air. HFO 1366mzz E in air was directly collected with aluminum foil
, , ,
composite plastic bag separated by dimethylpolysiloxane capillary column detected by flame ionization detector and
Results - () - 3,
quantified with external standard method. The linear range of HFO 1366mzz E was 6.82 68 200.00 mg/m with the
3,
correlation coefficient of 0.999 9. The detection limit and the lower limit of quantitation were 0.59 and 1.98 mg/m respectively.
- - -
The recovery rate was within 95.45% 103.05%. The relative standard deviation of within batch precision and between batch
- - ,
precision were 2.26% 5.07% and 4.09% 6.82% respectively. The samples can be stored at room temperature for at least seven
Conclusion , ,
days. This method is simple to use with a wide linear range low detection limit high accuracy and precision and
- ()
good sample stability. It can be used for the detection of HFO 1366mzz E in the air of workplace
5.Temperament characteristics of children with cerebral palsy
Feng LI ; Zhen WANG ; Rong-an ZHAO ; Xiangshu WEN ; Jun CHEN ; Yuan LI ; Lei XU
Chinese Journal of Rehabilitation Theory and Practice 2004;10(4):215-217
ObjectiveTo explore temperament characteristics of children with cerebral palsy.Methods364 children with cerebral palsy, ages from four months to seven years, were tested with modified Carey\'s Children Temperament Questionnaires. Temperament characteristics of children with different types of cerebral palsy, able and unable walk independently were compared.ResultsChildren with cerebral palsy had negative temperament including less active, low persistence, high distractibility and negative mood. Approach was different between children with diplegia and athtosis. There were no different temperaments among children with different lever of IQ. Children they could not walk independently had an obvious negative temperament.ConclusionChildren with cerebral palsy have significantly negative temperament.
6.Optimum harvest study of Gentiana crassicaulis in Ludian.
Yu ZENG ; Xing-Fu CHEN ; Yuan-Feng ZOU ; Jiu-Hua SONG ; Wen-Yu YANG ; Tao CHENG
China Journal of Chinese Materia Medica 2014;39(14):2635-2639
The paper is aimed to study the difference in yield and quality at different harvest time and determine the optimum harvest of planting Gentiana in Ludian traditional harvest period. The authors analyzed the variation in fresh weight, dry weight, dry discount rate, length, diameter, volume and the content of gentiopicroside, loganin acid, alcohol-soluble extract and total ash and made a comprehensive appraisal of yield, appearance quality and intrinsic quality by gray relational distance ideal Comprehensive Evaluation method. The results showed that there is a big difference in yield and quality both 2-year-old and 3-year-old Gentiana harvested in traditional harvest period and the comprehensive evaluation more better when harvested more later. It can be seen, Gentiana harvested the later had a better yield and quality in Ludian traditional harvest period. The harvest of Gentiana can be appropriate delayed depending on the particular circumstances of production.
Agriculture
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methods
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China
;
Gentiana
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anatomy & histology
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growth & development
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metabolism
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Iridoid Glucosides
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metabolism
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Organ Size
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Quality Control
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Time Factors
7.Simultaneous determination of alizarin and rubimaillin in Rubia cordifolia by ultrasound-assisted ionic liquid-reversed phase liquid chromatography.
Hong-shuai YANG ; Ju WANG ; Cui GUO ; Wei LIU ; Yuan-yuan CHEN ; Jin-feng WEI ; Wen-yi KANG
China Journal of Chinese Materia Medica 2015;40(13):2617-2623
Four kinds of ionic liquids were adopted to analyze the content of rubimaillin and alizarin in Rubia cordifolia roots with ultrasonic-assisted extraction coupled with HPLC. The chromatographic column, Purospher star RP-C18 (4.6 mm x 250 mm, 5 microm), was used. Methanol and 0.4% acetic acid-water as mobile phase with flow rate at 0.85 mL min(-1), gradient elution, detection wavelength at 250 nm, chromatographic column temperature was controlled at room temperature. The result showed that rubimaillin and alizarin had the highest extraction yield when the [ HMIM] PF6methanol solution concentration of 0.6 mol x L(-1) as extraction solvent and the conditions were solid-liquid ratio of 1:80 (g x mL(-1)). Under the optimal extraction conditions, the content of alizarin from 0.01 to 0.04 microg showed a good linearity (r = 0.9999), the average recovery was 97.12%, the content of rubimaillin from 0.41 to 1.35 microg showed a good linearity (r = 0.9999), the average recovery was 98.10%. This experiment adopted environmentally friendly reagent as extraction solvent, the extraction efficiency was improved, and the environmental pollution caused by organic solvent was avoided, the harm of human body aslo was reduced. This method was simple and reliable, its repeatability was also very good, which had an important significance in the study of traditional Chinese medicine active ingredient extraction methods.
Anthraquinones
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analysis
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Chromatography, Reverse-Phase
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methods
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Ionic Liquids
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chemistry
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Pyrans
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analysis
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Rubia
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chemistry
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Ultrasonics
8.Determination of oleanic acid and paeoniflorin in Paeonia lactiflora by ultrasound-assisted ionic liquid-reversed phase liquid chromatography.
Wei LIU ; Dong-dong LI ; Hong-shuai YANG ; Yuan-yuan CHEN ; Jin-feng WEI ; Wen-yi KANG ; Xiu-chun GUO
China Journal of Chinese Materia Medica 2015;40(3):443-449
Four kinds of ionic liquids [BMIM] Br, [BMIM] BF4, [BMIM] PF6, [HMIM] PF6 were used to analyze the content of oleanic acid and paeoniflorin in Paeonia lactiflora with ultrasonic-assisted extraction coupled with HPLC. The chromatographic column, Purospher star RP-C18 (4.6 mm x 250 mm, 5 μm), was used. Acetonitrile and water (90:10) as mobile phase was used to determine the content of oleanic acid with a gradient elution and flow rate at 1.00 mL · min(-1), detection wavelength at 210 nm, chromatographic column temperature at room temperature. Paeoniflorin content was determined using acetonitrile and water (18:82) as mobile phase with a gradient elution and flow rate at 1.00 mL · min(-1), detection wavelength at 250 nm, the chromatographic column temperature at room temperature. The result show that oleanic acid has the highest extraction yield when the conditions are solid-liquid ratio of 1:80 (g · mL(-1)), and the [BMIM] Br methanol solution concentration of 0.6 mol · L(-1). Under the optimal extraction conditions, the content of oleanic acid from 0.24 to 3.76 μg showed a good linearity (r = 0.9999), the average recovery was 97.20%. Paeoniflorin has the highest extraction yield when the conditions are solid-liquid ratio of 1:130 (g · mL(-1)), and the [C4 MIM] PF6 methanol solution concentration of 0.6 mol · L(-1). Under the optimal extraction conditions, paeoniflorin content from 0.42 to 4.20 μg showed a good lin- earity (r = 1.000), the average recovery was 98.84%. This method is simple and reliable, its repeatability is also very good. It has important significance in the study P. lactiflora of ionic liquid microextraction.
Chromatography, Reverse-Phase
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methods
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Glucosides
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analysis
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Ionic Liquids
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chemistry
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Monoterpenes
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analysis
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Oleanolic Acid
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analysis
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Paeonia
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chemistry
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Ultrasonics
9.Investigation on anti-hepatitis B virus active components and mechanism of Salvia miltiorrhiza based on network pharmacology
Hai-mei WEN ; Si-yuan WANG ; Ya-ru WANG ; Feng-li XING ; Yong CHEN ; Wen-tao CAI
Acta Pharmaceutica Sinica 2022;57(5):1375-1386
We predicted the anti-hepatitis B virus (HBV) active components and mechanism of
10.Clinical observation on acupoint sticking therapy plus electroacupuncture for treating peripheral facial paralysis
Li-Mei FENG ; Ting-Ting ZENG ; Wen-Guang HOU ; Yu-Dan ZHU ; Kang WANG ; Feng-Hui JIANG ; Wen-Min YUAN ; Hui CHEN ; Jin-Chao LUO
Journal of Acupuncture and Tuina Science 2020;18(6):445-451
Objective: To observe the clinical effect of acupoint sticking therapy with Mian Tan Gao (facial paralysis paste) plus electroacupuncture (EA) for treating peripheral facial paralysis and its influence on patients' facial nerve functions, facial disability index and clinical symptoms and signs. Methods: A total of 96 peripheral facial paralysis patients were allocated into an observation group, a medicine group and an EA group by simple randomization, with 32 cases in each group. Patients in the medicine group were treated with oral mecobalamine and prednisone acetate; patients in the EA group were treated with EA on the basis of the medicine treatment; while patients in the observation group were treated with acupoint sticking therapy with Mian Tan Gao (facial paralysis paste) plus EA. After 4-week treatment, the clinical efficacy, the adverse events, and the scores of House-Brackmann (H-B) facial nerve function grading scale, visual analog scale (VAS), clinical symptoms and signs, and facial disability index (FDI) were compared. Results: After 4-week treatment, the total effective rate was 96.9% in the observation group, higher than 68.7% in the medicine group and 75.0% in the EA group (both P<0.05). After 4-week treatment, the scores of H-B grading scale, VAS and clinical symptoms and signs in the three groups dropped significantly compared with those before treatment, and the scores in the observation group were lower than those in the medicine group and EA group (all P<0.05). After 4-week treatment, the facial disability index-physical function (FDIP) in the FDI in the three groups increased significantly, with a higher value in the observation group compared with that in the medicine group and EA group (both P<0.05). The facial disability index-social function (FDIS) in the FDI dropped significantly, with a lower score in the observation group compared with that in the medicine group and EA group (both P<0.05). However, the comparisons of the items above between the medicine group and the EA group showed no statistical significance (all P>0.05). The between-group comparison of the adverse event across the three groups showed no statistical significance (P>0.05). Conclusion: Acupoint sticking therapy with Mian Tan Gao (facial paralysis paste) plus EA can decrease H-B grade, reduce pain severity and improve clinical symptoms and signs as well as the facial disability condition in peripheral facial paralysis patients. This method produced more significant efficacy compared with oral medicine and medicine plus EA.