1.Clinical study of prevention of oxaliplatin-induced acute neurotoxicity by calcium and magnesium infusions
Jian-Hua YU ; Hui-Ping WAN ; Jian-Yong YU ;
Cancer Research and Clinic 2000;0(06):-
Objective To evaluate the efficacy of calcium(Ca)and magnesium(Mg)infusions in pre- vention of oxaliplatin-induced acute neurotoxicity.Methods Fourty-two patients with advanced colorectal carcinoma were eligible for the study:21 were assigned to the Ca/Mg ann and 21 to the control arm.The Ca/ Mg arm and the control arm were comparable for patients'characteristics.Chemotherapy regimen were al- most the same in both arms.Chemotherapy regimen consisted of oxaliplatin 130 mg/m~2 on day 1,given as a 3-hour infusion in 500 ml of 5% glucose,concurrent with rahitrexed 3 mg/m~2 as a 15-minute intravenous (Ⅳ)infusion or calcium folinate(CF)200 mg?m~(-2)?d~(-1),days 1~5,5-Fluorouracil(5-Fu)500 mg?m~(-2)?d~(-1),days 1~5.Therapy was repeated every 3 weeks.The treatment consisted of Ca gluconate and Mg sulfate,1 g each, delivered i.v.over 15 min just before the oxaliplatin infusion and repeated at the same dose after the comple- tion of the oxaliplatin infusion.A specific neurotoxicity scale was used for oxaliplatin-related neurotoxicity. Results Ten patients(47.62%)had acute neurotoxicity in the Ca/Mg arm compared with 19 patients (90.48%)in the control arm(P0.05).Conclusion Ca/Mg infusions seem to reduce incidence and intensity of oxaliplatin-induced acute neurotoxicity,and they do not reduce the clinical activity of oxaliplatin,but dosage and administration schedule could be optimized.
2.Study on extraction technics and variety trends of the flavonoids in Sarcandrae glabra.
China Journal of Chinese Materia Medica 2007;32(4):307-309
OBJECTIVETo study on extraction technics and variety trends of the flavonoids in Sarcandrae glabra.
METHODBy using S. glabra in Guizhou as materials and the experiment of L9 (3(4)) by ethanol as extracting way, The variety trends of the flavonoids from S. glabra are studied under the optimum extracting conditions during different raw stored times, different gathering season, different S. glabra position.
RESULTThe flavonoid's contains was more low when the raw material was stored more long and descended average 24.74% annually. The flavonoid's contains had the tallest in 10-12 month by gathering indifferent season. The flavonoids contains were the tallest in the leaf of S. glabra in Guizhou than in the root and stem, and the contains were the lowest in stem.
CONCLUSIONThe optimum conditions of extracting flavonoids from S. glabra are obtained when the condition is 60% of density of ethanol at 10 times of volume, 80 degrees C of extracting temperature, 3 h of extracting hours, 3 times of extracting number of times in 10-12 month, in the leaf, the raw material was stored more shortest, the flavonoid's contains had the tallest.
Ethanol ; chemistry ; Flavonoids ; analysis ; isolation & purification ; Magnoliopsida ; chemistry ; Plant Leaves ; chemistry ; Plant Roots ; chemistry ; Plant Stems ; chemistry ; Plants, Medicinal ; chemistry ; Seasons ; Technology, Pharmaceutical ; methods ; Temperature ; Time Factors
3.Separation and purification of flavonoids from chrysanthemum indicum with macroporous resin.
China Journal of Chinese Materia Medica 2007;32(20):2123-2127
OBJECTIVEA method for separation and purification of flavonoids from C. indicum with macroporous resin was studied.
METHODBy using C. indicum in Guizhou as the materials and with the content and recovery rate of flavonoids as indexes, the static and dynamic adsorption tests were employed to investigated effects and affective factors of separation and purification of flavonoids from C. indicum with macroporous resin.
RESULTResults show that the static adsorption capacity of AB-8 type resin was 114.65 mg x g(-1), the static elution ratio were 94.9%, the dynamic adsorption capacity of AB-8 type resin was 94.5 mg x g(-1), the recovery rate was more than 92.6% and the purity of flavonoids was more than 90%. AB-8 type resin is the best for separating and purificating C. indicum in flavonoids.
CONCLUSIONThe optimum conditions is AB-8 type macroporous resin, 70% alcohol as the eluant and 2 to approximately 3 times volume of the resin as the eluant volume, the ratio of flavonoids to the volume of the resin as 1:10.6, concentration of flavonoids of sample as 19.8 mg x mL(-1) and current velocity as 2 to approximately 3 mL x min(-1), pH value of sample as 4 to approximately 5. [Key words]' macroporous resin; Chrysanthemum indicum; flavonoids; separation; purification
Adsorption ; Chrysanthemum ; chemistry ; Ethanol ; Flavonoids ; isolation & purification ; Plants, Medicinal ; chemistry ; Resins, Synthetic ; Technology, Pharmaceutical ; methods
4.Changes of oxygen function of workers of long-term exposure of toluene, methanol, dimethylformamide.
Yu-feng LOU ; Xin-ping SHI ; Li-jian LOU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2010;28(7):527-528
Adult
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Dimethylformamide
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adverse effects
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Glutathione
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blood
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Humans
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Male
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Methanol
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adverse effects
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Nitric Oxide
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blood
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Occupational Exposure
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Oxygen
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metabolism
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Superoxide Dismutase
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blood
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Surveys and Questionnaires
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Toluene
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adverse effects
5.Guideline for technique of coronary artery bypass.
Qing-yu WU ; Jian-ping XU ; Chang-qing GAO
Chinese Journal of Surgery 2006;44(22):1517-1524
6.Standardization of HER2 testing in gastric cancer.
Xiao-yu LONG ; Hong BU ; Jian-ping LIU
Chinese Journal of Pathology 2011;40(9):645-648
7.A new alkaloid from Salsola collina
Yu XIANG ; Youbin LI ; Jian ZHANG ; Ping LI ; Yuanzhang YAO
Acta Pharmaceutica Sinica 2007;42(6):618-620
Salsola collina is widely distributed in droughty and semi-droughty area, which is used as a kind of folk remedy in traditional Chinese medicine for treatment of hypertension. The study is on the chemical constituents of this herb from its aerial parts to obtain its active constituents. Dried and crushed aerial parts of this herb were extracted three times with 95% EtOH at reflux. The ethanol extracts were combined and concentrated under reduced pressure at 70 ℃ to yield residue, which was suspended in water and successively partitioned with light petroleum, chloroform and n-butanol. The chloroform and n-butanol fractions were treated by various chromatographic techniques, such as silica gel, C18 reversed-phase silica gel and macroporous resin column chromatography. Compounds were elucidated by their physicochemical properties and spectroscopic analysis. In the course of our study on searching biological active components from this herb, a new alkaloid together with three known alkaloids were isolated and identified as N-transferuloyl-3-methyldopamine (1), 3-[4-(β-D-glucopyranosyloxy)-3- methoxyphenyl]-N-[2-(4-hydroxyl-3-methoxyphenyl)ethyl]-2-propenamide (2), salsoline A (3), salsoline B (4). Compound 4 is a new compound and named as salsoline B, while compound 2 was obtained in Salsola collina for the first time.
9.Guidelines for evidence-based Chinese medicine clinical pathway report.
SiCheng WANG ; Jian-Ping LIU ; Hui LI ; He YU
Journal of Integrative Medicine 2010;8(9):819-23
Clinical pathway (CP), as a standardized approach and clinical management process for disease diagnosing and treating, is being widely used with more relevant publications reported gradually. But different forms of CP reports may prevent the evaluation and spreading of CP. The authors recommend guidelines for evidence-based Chinese medicine CP report, including 18 items which form 5 big sections, by precise item selection and rigorous expert consensus. All these items can embody the principles of Chinese medicine and comply with the requirements of the clinical practice of Chinese medicine. All above are based on synthesizing the published literature systematically and analyzing the current status in this field, also according to the characteristics of Chinese medicine and methodology requirement of evidence-based medicine.
10.Study on the acute toxicity of Tripterygium Hypoglaucum (Levl) Hutch solution in mice
Lujun YANG ; Houyong YU ; Ping HUANG ; Jian YUAN ; Jia CAO ;
Journal of Third Military Medical University 2003;0(17):-
Objective To explore the acute toxicity and LD 50 of Tripterygium Hypoglaucum (Levl) Hutch(THH) solution to provide information for safe clinical application. Methods After oral administration of THH solution in mice, the mortality and the physiological and pathological changes were observed. Results The LD 50 (95% confidence limit) of THH in male and female mice was 79 g/kg(69~89 g/kg) and 100 g/kg (90~112 g/kg), respectively. No marked pathological change of the organs was found. Conclusion According to the standard of grading of acute toxicity, THH solution belongs to the moderate class. Therefore, it is safe in clinical practice and has a wide application.