2.Application quantitative thermal sensory test in facial palsy
Ou-Mei CHENG ; Wei-Wei DONG ; Yong YAN ; Xiu-Shu WU ; Jun YANG ; Qin YANG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(06):-
Objective To investigate quantitatively the thermal sensation characteristics of the patients with facial palsy and the value of quantitative thermal test (QTT) in prognostication.Methods The QTT threshold of the fore ear and cheek of 30 patients with peripheral facial palsy was tested,their facial nerve conduction velocity was measured,and House-Brackmann facial nerve grading system was used to estimate facial nerve function at 2~3 weeks,a month,two months and half a year post onset.Results It was found that 12 out of 30 patients had abnor- mal QTT threshold value;the majority of them suffered from herpes virus and diabetes.In those with abnormal QTT, 8 were with diabetes mellitus (account for 66.7%),3 with partial shingles (account for 25%),and 1 with positive serum virus infection (account for 8.3%).Those with normal QTT were significantly different from those with abnor- mal QTT,with regard to the House-Brackmann rating scores after 2 and 6 months post onset (P
3.Change of ?-amyloid precursor protein processing in platelet of Alzheimer's disease patients
Xiao-Qin HUANG ; Jian-Ping JIA ; Chun-Qiu FAN ; Xiu-Min DONG
Chinese Journal of Neurology 1999;0(06):-
Objective To investigate the characteristic of ?-amyloid precursor protein (A?) processing in activated platelet in AD.Methods Thirty-six sporadic AD patients and 30 control subjects were included in this study.Blood was collected from the subjects to separate platelets.After treated by thrombin,the soluble amyloid precursor protein (APP) level in the snpernatants of platelets from 36 were analyzed by means of western blot with a specific antibody recognizing soluble APP.Meanwhile A? level was measured by radioimmunoassay.Results After treated with thrombin,the level of soluble APP in the supernatants of platelets in patients with AD decreased by 31.0% (P
5.The ability of pleth variability index to predict fluid responsiveness in mechanically ventilated patients under general anaesthesia.
Qin-fang CAI ; Wei-dong MI ; Wei-xiu YUAN
Chinese Journal of Surgery 2010;48(21):1628-1632
OBJECTIVETo evaluate the ability of pleth variability index (PVI) in predicting fluid responsiveness in mechanically ventilated patients under general anesthesia.
METHODSFrom August to November 2009, 25 patients were enclosed in this study following anesthesia induction. PVI was continuously displayed by the Masimo Radical 7. All patients were also monitored with Vigileo/FloTrac system. Haemodynamic data such as cardiac index (CI), stroke volume variability (SVV), mean arterial pressure, heart rate, central venous pressure, PVI, perfusion index were recorded before and after volume expansion (hetastar 6%, 7 ml/kg). Fluid responsiveness was defined as an increase in CI ≥ 15% (ΔCI ≥ 15).
RESULTSSVV and PVI were significantly higher in the responders (16.0% ± 2.6% and 20.5% ± 3.7%) than those in non-responders (11.6% ± 1.4% and 13.8% ± 2.6%) respectively (P < 0.05). The SVV threshold of 13.5% before volume expansion was able to discriminate the responders from the non-responders with a sensitivity of 88.2% and a specificity of 87.5%. The threshold for PVI was 15.5%, the same sensitivity of 88.2% and specificity of 87.5% were obtained. There was a significant relationship between PVI before volume expansion and change in CI after volume expansion (r = 0.683, P < 0.01), the same as the changes of SVV (r = 0.600, P < 0.01).
CONCLUSIONPVI as a new dynamic indices can predict fluid responsiveness non-invasively in mechanically ventilated patients during general anesthesia.
Abdomen ; surgery ; Adult ; Aged ; Anesthesia, General ; Female ; Fluid Therapy ; Hemodynamics ; physiology ; Humans ; Male ; Middle Aged ; Monitoring, Intraoperative ; Respiration, Artificial
6.Screening and analysis of coagulation factor VIII inhibitor in patients with hemophilia A.
Ao-Li ZHANG ; Lin-Hua YANG ; Xiu-Er LIU ; Hua ZHAO ; Jian-Hua ZHANG ; Chun-Xia DONG ; Xi-Lin QI ; Xiu-Yu QIN
Journal of Experimental Hematology 2011;19(4):968-970
In order to detect coagulation factor VIII (FVIII) inhibitor in patients with severe hemophilia A (HA) and preliminarily study the genetic mutation in patients with inhibitor positive. Totally 58 patients with HA (FVIII: C < 1%) were enrolled. FVIII: C activity was measured by one-stage coagulation assay. FVIII inhibitor was screened by using APTT method and FVIII inhibitor in screened positive patients with HA was quantitatively analyzed by using Bethesda method. Using genomic DNA as template, 12, 14, 16 exons of FVIII in screened positive patients were amplified, and the mutations of amplified products were detected by direct sequencing. The results indicated that the FVIII inhibitor could be detected in 4 patients (6.9%) from 58 HA patients, no gene mutations in 12, 14, 16 exons of FVIII were found. It is concluded that the positive rate of FVIII inhibitor in HA patients is lower than that reported in literature. The causes of inhibitor production needs to further investigate.
Adolescent
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Adult
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Blood Coagulation Factor Inhibitors
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isolation & purification
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Blood Coagulation Tests
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Child
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Child, Preschool
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Exons
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Factor VIII
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antagonists & inhibitors
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genetics
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Genetic Testing
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Hemophilia A
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diagnosis
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genetics
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Humans
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Infant
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Middle Aged
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Mutation
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Young Adult
7.Synthesis and antitumor activity of novel tetrahydro-beta-carboline derivatives as KSP inhibitors.
Xiu-Qin RUAN ; Ming CHEN ; Wu-Tong WU ; Qi-Dong YOU
Acta Pharmaceutica Sinica 2013;48(7):1119-1123
Inhibitors of kinesin spindle protein (KSP) are a promising class of anticancer agents that cause mitotic arrest and induce apoptosis of tumor cells. A series of novel tetrahydro-beta-carboline derivatives were synthesized as kinesin spindle protein inhibitor and evaluated as potential antitumor agents. All compounds showed promising KSP inhibitiory activity. Compounds 8 and 9 exhibited better antitumor activity (Lung/A549, Stomach/AGS) than CK0106023 with GI50/IC50 values (1.07/1.62 and 1.46/3.27 micromol x L(-1), 1.09/>10 and 1.22/6.33 micromol x L(-1), respectively).
Antineoplastic Agents
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chemical synthesis
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chemistry
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pharmacology
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Carbolines
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chemical synthesis
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chemistry
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pharmacology
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Cell Line, Tumor
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Cell Proliferation
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drug effects
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Humans
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Inhibitory Concentration 50
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Kinesin
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antagonists & inhibitors
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pharmacology
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Molecular Structure
8.Determination of mosapride in human plasma by high performance liquid chromatography tandem mass spectrometry.
Feng QIN ; Ling-Yun CHEN ; Yuan-Yuan MA ; Dong WANG ; Juan LIU ; Xiu-Mei LU ; Fa-Mei LI
Acta Pharmaceutica Sinica 2007;42(8):882-885
To develop a sensitive and specific high performance liquid chromatography-tandem mass spectrometric (HPLC-MS/MS) method for the determination of mosapride in human plasma, mosapride and internal standard tamsulosin were extracted from plasma with liquid-liquid extraction, then separated on a Waters ACQUITY UPLC BEH C18 column (50 mm x 2.1 mm, 1.7 microm ID) with gradient elution at flow-rate of 0.25 mL x min(-1). The mobile phase was water (containing 0.3% formic acid) and acetonitrile under gradient conditions. Electrospray ionization (ESI) source was applied and operated in the positive ion mode. Multiple reaction monitoring (MRM) mode with the transitions of m/z 422 --> m/z 198 and m/z 409 --> m/z 228 were used to quantify mosapride and the internal standard, respectively. The linear calibration curve was obtained in the concentration range of 0.17 - 68.00 ng x mL(-1). The lower limit of quantification was 0.17 ng x mL(-1). The inter- and intra-day precision (RSD) was less than 13%, and the accuracy (RE) was within +/- 6.3% calculated from QC samples. The method was used to determine the concentration of mosapride in plasma after a single oral dose of 5 mg mosapride citrate to 20 healthy male Chinese volunteers. The method has been proved to be selective, sensitive, rapid and suitable for pharmacokinetic study of mosapride.
Administration, Oral
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Area Under Curve
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Benzamides
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administration & dosage
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blood
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pharmacokinetics
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Chromatography, High Pressure Liquid
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methods
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Gastrointestinal Agents
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administration & dosage
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blood
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pharmacokinetics
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Humans
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Male
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Morpholines
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administration & dosage
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blood
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pharmacokinetics
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Sensitivity and Specificity
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Serotonin Receptor Agonists
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administration & dosage
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blood
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pharmacokinetics
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Spectrometry, Mass, Electrospray Ionization
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Tandem Mass Spectrometry
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methods
9.Synthesis and biological evaluation of tetrahydro-beta-carline derivatives.
Xiu-Qin RUAN ; Qi-Dong YOU ; Lei YANG ; Wu-Tong WU
Acta Pharmaceutica Sinica 2008;43(8):828-832
Kinesin spindle protein (KSP/Eg5) is essential for the formation and maintenance of bipolar spindles during mitosis. Inhibition of this protein leads to cell cycle arrest and apoptosis without interfering other microtubule-dependent processes. Therefore, it is a potential target in cancer therapy. Here, a series of tetrahydro-beta-carboline derivatives 5a - k were synthesized as kinesin spindle protein inhibitor. Their structures were confirmed with 1H NMR, ESI-MS and elemental analysis. The synthesized compounds were evaluated for their inhibition of KSP.
Antineoplastic Agents
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chemical synthesis
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chemistry
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pharmacology
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Carbolines
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chemical synthesis
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chemistry
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pharmacology
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Kinesin
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antagonists & inhibitors
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metabolism
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Molecular Structure
10.Simultaneous determination of four constituents in Liujing Toutong Tablets by HPLC
Hong-Ling DONG ; Qin-Qing LI ; Jin-Miao CHAI ; Wen-Bin HE ; Xiu-Ying LI
Chinese Traditional Patent Medicine 2018;40(2):355-358
AIM To establish an HPLC method for the simultaneous content determination of four constituents in Liujing Toutong Tablets (Angelicae dahuricae Radix,Magnoliae Flos,Ligustici Rhizoma et Radix,etc.).METHODS The analysis of 30% ethanol extract of this drug was performed on a 35 ℃ thermostatic Waters C18 column (4.6 mm × 250 mm,5 μm),with the mobile phase comprising of methanol-4% acetic acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 320 nm.RESULTS Puerarin,ferulic acid,imperatorin and isoimperatorin showed good linear relationships within the ranges of 60.6-303 μg/mL (r=0.999 9),1.59-7.95 μg/mL (r =0.999 9),1.57-7.85 μg/mL (r =0.999 9) and 0.752 5-3.762 5 μg/mL (r =0.999 7),whose average recoveries (RSDs) were 97.75% (1.7%),97.68% (2.3%),97.94% (1.0%) and 98.29% (1.6%),respectively.CONCLUSION This stable and reliable method can be used for the quality control of Liujing Toutong Tablets.