4.Preliminary results of intraoperative radiation therapy for cervical carcinomaⅡb
Chinese Journal of Obstetrics and Gynecology 2000;0(09):-
0.05). However, there were quite improvements of survival rate and survival quality for cervical adenocacinoma. Their 5-year survival rates were 91% and 33% (P
7.Correlation between integrated pharmacokinetics and pharmacodynamics of bile processed Rhizoma Coptidis in febrile rats.
Jing WANG ; Yue CHEN ; Zi-min YUAN
Acta Pharmaceutica Sinica 2016;51(1):127-131
This study was designed to validate the correlation between integrated pharmacokinetic and therapeutic effects of alkaloids using bile processed Rhizoma Coptidis (BRC). Rats were divided into three groups: normal, disease model, model+BRC. Rats were induced to have an excessive heat syndrome. Rectal temperatures were collected at 0, 3, 6 and 9 h after single oral administration of the drugs. The plasma concentrations of three alkaloids were quantified at different times by UPLC-MS/MS after the administration of BRC. An approach of self-defined weighting coefficiency was created to the holistic pharmacokinetic profiles of alkaloids in BRC. The classified and integrated synthetic concentrations were obtained, and then the pharmacokinetic parameters of alkaloids were calculated from non-compartmental model analysis. The potential relationship between the integrated mean concentration of alkaloids and the antifebrile efficacy was investigated. The holistic t(max) of alkaloids was 1.11 h, the antifebrile effect of BRC at 3 h was improved over the model group. Double peaking appeared in the integrated blood concentration-time curve, the second t(max) of alkaloids was 4.82 h. The antifebrile effects of BRC at 3-6 h were significant, and the antifebrile effects at 6-9 h was decreased significantly. Dynamic variation of alkaloids of BRC in the body exhibited the similarity to the pattern of its antifebrile effect.
Administration, Oral
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Alkaloids
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pharmacokinetics
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Animals
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Bile
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Coptis
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chemistry
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Drugs, Chinese Herbal
;
chemistry
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pharmacokinetics
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Rats
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Rats, Sprague-Dawley
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Rhizome
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chemistry
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Tandem Mass Spectrometry
9.A more accurate and efficient fluorescent probe of Caspase-8 activity based on flow cytometric fluorescence resonance energy transfer.
Acta Pharmaceutica Sinica 2015;50(3):291-297
As a classic fluorescent detect technique, fluorescence resonance energy transfer (FRET) has been widely used in biological researches. Researchers have developed a series of fluorescence detect probes which were based on FRET. Caspase family plays an important role in apoptosis pathway, especially Caspase-8 which located, at the initial of death receptor mediated apoptosis pathway, whose its activation can trigger subsequent precaspases' activation and lead to apoptosis. So it is of great significance to detect the activation of Caspase-8 in apoptosis assay. In this study, a fluorescent probe based on FRET has been designed which can detect the activity change of Caspase-8 in cells. To identify the effectiveness and specificity of the probe, we measure the Caspase-8 activity under the Caspase-8 specifically activated apoptosis inducer RGD-TRAIL with the flow cytometry FRET detection platform. The results show that the probe can respond to the activity change of Caspase-8 in apoptotic cells, and the change can be quantified rapidly by flow cytometry. The study provides a more efficient and convenient detection method of Caspase-8 activity in living cells.
Apoptosis
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Caspase 8
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metabolism
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Flow Cytometry
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Fluorescence Resonance Energy Transfer
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Fluorescent Dyes
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Humans
10.Effect of symptoms of posttraumatic stress disorder on the psychological states among high school students in the earthquake regions
Zi CHEN ; Min SHEN ; Yanzhang LI
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(2):152-155
Objective To investigate the effect of posttraumatic stress disorder(PTSD) on the psychological healthy state among high school students in the earthquake regions.Method The samples were consisted of 666 high school students who had experienced the Wenchuan Earthquake.The Impact of Event Scale-Revised (IES-R) and Self Description Questionnaire (SDQ) were used to rate symptoms of PTSD and psychological states of high school students.Data were analyzed using correlation analysis and structural equation model analysis for male or female separately.Results (1) Because their scores of IES-R were higher than 35,22.67% participants were considered as PTSD patients,girls accounted for 83 or 25.31% of the total female;and boys accounted for 68 or 21.72% of the total male.(2) Among female,avoid and awake systems of PTSD were correlated significantly with their psychological state significantly (r=0.101-0.181,P<0.05).The result of structural equation model analysis was similar to correlation analysis,corresponding coefficients of path ranged 0.11 to 0.18 (P<0.05).(3) Among male,intrude and awake systems were correlated with their psychological state significantly (r=0.111-0.313,P<0.05).Corresponding coefficients of path ranged from 0.11 to 0.31 (P< 0.05).Conclusion Systems of PTSD effect clearly on the psychological state of high school students,and there are the gender difference among these relationships.The symptoms of PTSD influence interpersonal relationships,emotion,conduct,appearance and self-evaluation,but school work and stamina are not influenced in this study.