1.Effect of different intraoperative insulation methods on hypothermia and surgical site infection in patients with gastrointestinal surgery
Jun-Shuo ZHANG ; Zhong-Hua CHU ; Xi FANG ; Huai-Du PENG
The Chinese Journal of Clinical Pharmacology 2015;(18):1834-1836
Objective To evaluate the effect of different intraoperative insulation methods on hypothermia and surgical site infection in patients with gastrointestinal surgery .Methods A total of 200 patients with gas-trointestinal surgery were randomly divided into control group ( n=100 ) and experiment group ( n =100 ) .The patients in control group were given to cover with quilts.The experiment group patients were given to cover with quilts combined with inflatable warm .The body temperature changes , hypothermia rate , prothrombin time ( PT ) , thrombin time (TT), activated partial thromboplastin time ( APTT), bleeding volume and surgical site infection rate were compared between the two groups . Results In the process of operation , the body temperature of observation group had no obvious change , but compared with the control group , significantly different ( P <0.05 ) .The hypothermia rate of experiment group significantly lower than that of control group ( 10.0%vs 67.0%) , (P<0.05).The PT, APTT and TT of experiment group had no obvious change , statistically different from those of the control group (P<0.05).The bleeding volume of experiment group significantly less than control group ( P<0.05 ) . The surgical site infection rate of experiment group significantly lower than that of control group ( 3.0% vs 17.0%, P <0.05 ) .Conclusion Using inflatable warm nursing on patients with gastrointestinal surgery can effectively maintain body temperature , decrease hypothermia , improve coagulation function , reduce bleeding volume and surgical site infection rate .
2.HPLC-electrospray ionization ion trap tandem mass spectrometry analysis of oxymatrine and its metabolites in rat urine.
Yong CHEN ; Huai-xia CHEN ; Peng DU ; Feng-mei HAN
Acta Pharmaceutica Sinica 2005;40(8):740-745
AIMTo identify the main metabolites of oxymatrine (OMT) in rats.
METHODSTo optimize the conditions of LC/ESI-ITMS' chromatograms and spectra by oxymatrine and matrine (MT), and summarize their ionization and cleavage rules in ESIMS, then serving as the basis for the metabolite analyses of oxymatrine in rats. To collect the 0-24 h urine samples of the rats after ip 40 mg x kg(-1) oxymatrine, the samples were enriched and purified through C18 solid-phase extraction cartridge. The purified samples were analyzed by LC/ESI-ITMS. The structures of OMT metabolites were identified according to their retention times and ESI-ITMSn rules.
RESULTSSix phase I metabolites and the parent drug OMT were found in the rat urine, and the main metabolite was MT. No phase II metabolites were found.
CONCLUSIONThe developed LC/ESI-ITMSn methods to identify the metabolites of oxymatrine in rats is not only simple and rapid but also sensitive and specific. This technology is one of the most efficient methods for the analysis of drug metabolites.
Alkaloids ; isolation & purification ; pharmacokinetics ; urine ; Animals ; Chromatography, Liquid ; methods ; Plants, Medicinal ; chemistry ; Quinolizines ; isolation & purification ; pharmacokinetics ; urine ; Rats ; Rats, Wistar ; Sophora ; chemistry ; Spectrometry, Mass, Electrospray Ionization ; methods
3.Analysis of anisodine and its metabolites in rat plasma by liquid chromatography-tandem mass spectrometry.
Huai-Xia CHEN ; Peng DU ; Feng-Mei HAN ; Yong CHEN
Acta Pharmaceutica Sinica 2006;41(6):518-521
AIMTo identify anisodine and its metabolites in rat plasma after ingestion of anisodine by combining liquid chromatography and tandem mass spectrometry (LC-MS(n)).
METHODSPlasma samples from rats after a single orally administration of 20 mg anisodine were added with methanol to precipitate protein. Then, it was analyzed by LC-MS(n). Identification and structural elucidation of the metabolites were performed by comparing their changes in molecular masses, retention-times and full scan MS(n) spectra with those of the parent drug and blank plasma.
RESULTSThe results revealed that the parent drug and its four metabolites (norscopine, scopine, hydroxyanisodine, N-oxide anisodine) existed in rat plasma.
CONCLUSIONThis method is sensitive, rapid, simple, and it is suitable for the rapid identification of drug and its metabolits.
Administration, Oral ; Animals ; Chromatography, Liquid ; methods ; Plants, Medicinal ; chemistry ; Rats ; Rats, Wistar ; Scopolamine Derivatives ; isolation & purification ; metabolism ; Sensitivity and Specificity ; Solanaceae ; chemistry ; Tandem Mass Spectrometry ; methods
4.Detection of anisodamine and its metabolites in rat feces by tandem mass spectrometry.
Huai-Xia CHEN ; Peng DU ; Feng-Mei HAN ; Yong CHEN
Acta Pharmaceutica Sinica 2006;41(12):1166-1169
AIMTo establish a LC-MS(n) method for the identification of anisodamine and its metabolites in rat feces.
METHODSFeces samples were collected after single administration of 25 mg x kg(-1) anisodamine to rats, and dipped in water for 1 h. Samples were then extracted by ethyl acetate. The pretreated samples were separated on a reversed-phase C18 column using a mobile phase of methanol / 0.01% triethylamine (adjusted to pH 3.5 with formic acid) (60 : 40, v/v) and detected by LC-MS". Identification of the metabolites and elucidation of their structures were performed by comparing their changes in molecular masses (deltaM), retention-times and full scan MS(n) spectra with those of the parent drug and blank feces.
RESULTSThe parent drug and its seven metabolites (6beta-hydroxytropine, nor-6beta-hydroxytropine, aponoranisodamine, apoanisodamine, noranisodamine and hydroxyanisodamine, tropic acid) were found in rat feces.
CONCLUSIONThis method is sensitive, rapid, simple, effective, and suitable for the rapid identification of drug and its metabolites in biologic samples.
Animals ; Feces ; chemistry ; Rats ; Rats, Wistar ; Solanaceous Alkaloids ; analysis ; metabolism ; Tandem Mass Spectrometry ; methods
5.Multi-central clinical evaluation of ginger-partitioned moxibustion for treatment of leukopenia induced by chemotherapy.
Xi-Xin ZHAO ; Mei LU ; Xia ZHU ; Ping GAO ; Yan-Li LI ; Xue-Mei WANG ; Dong-Yang MA ; Xian-Hui GUO ; Bo-Ying TONG ; Xiao-Li YANG ; Wei-Wei DU ; Shi-Fan ZHOU ; Huai-Min LIU ; Peng-Fei RAN ; Xiao-Rui LÜ
Chinese Acupuncture & Moxibustion 2007;27(10):715-720
OBJECTIVETo prove the therapeutic effect of ginger-partitioned moxibustion on leukopenia induced by chemotherapy and effect on life quality of the patient with tumor after chemotherapy.
METHODSRandomized, controlled, multi-central cooperative method was used and the patients confirmed to the enrolled criteria were divided in-to two groups. The test group were treated with ginger-partitioned moxibustion at Dazhui (GV 14), Geshu (BL 17), Pishu (BL 20), etc.; and the control group with oral administration of Chinese patent medicine.
RESULTSOut of the 221 cases confirmed to program analysis, 113 cases were in the test group and 108 cases in the control group. After 10 days, the cured rate and the effective rate were 84.1% and 66.4% in the test group and 35.2% and 33.3% in the control group, respectively, with very significant differences between the two groups (both P < 0.01); fifteen days later, the therapeutic effects in the two groups were maintained. The two methods could improve clinical symptoms, with the test group being better than the control group. Any adverse response was not found in the two groups, and the injuries of functions of the heart, lung and kidney induced by chemotherapy had some improvement.
CONCLUSIONThe therapeutic effect of ginger-partitioned moxibustion on luekopenia induced by chemotherapy is reliable and is better than oral administration of Chinese patent medicine, with a better duplication.
Adult ; Aged ; Antineoplastic Agents ; adverse effects ; Female ; Ginger ; Humans ; Leukopenia ; therapy ; Male ; Middle Aged ; Moxibustion ; methods