2.Effect of picrosideⅡon expression of myelin basic protein after cerebral ischemia injury in rats
Chinese Journal of Pathophysiology 2014;33(4):584-591
AIM: To verify the neuroprotective effect and optimize the therapeutic dose and time window of picroside Ⅱon cerebral ischemic injury in rats .METHODS:The forebrain ischemia model was established by the method of bilateral common carotid artery occlusion ( BCCAO ) .The successful model rats were randomly divided into 16 groups according to orthogonal design and treated by intraperitoneal injection of picroside Ⅱat different ischemic time poinis and different doses .The changes of the nerve fiber myelin were observed by fast green staining .The immunohistochemical assay and Western blotting were used to quantitatively and qualitatively determine the expression of myelin basic protein (MBP). The mRNA level of MBP in the brain tissues was tested by reverse transcription polymerase chain reaction (RT-PCR).RE-SULTS:Picroside Ⅱ increased the expression of MBP and decreased demyelination after cerebral ischemic injury .The best therapeutic time window and dose were:(1) ischemia for 2.0 h with picrosideⅡat dose of 10 mg/kg according to the results of fast green staining;(2) ischemia for 2.0 h with the dose of 10 mg/kg according to the results of immunohisto-chemical assay;(3) ischemia for 2.0 h with the dose of 10 mg/kg according to the analysis of Western blotting;(4) is-chemia for 1.5 h with the dose of 20 mg/kg according to the detection of RT-PCR.CONCLUSION:Given the principle of the lowest therapeutic dose with the longest time window , the optimized therapeutic dose and time window for rat cerebral ischemic injury is intraperitoneal injection of picroside Ⅱat the doses of 10~20 mg/kg and the time window of ischemia for 1.5~2.0 h.
3.Acupoint position and manipulation of needle knife treating shoulder bi syndrome.
Chinese Acupuncture & Moxibustion 2016;36(3):299-302
With Jianyu (LI 15), Jianliao (TE 14) and Jianzhen (SI 9) for instance, the three acupoints used to treat shoulder bi syndrome by needle knife, and through traceability and researching constant structure, the acupoint position, insertion trace, manipulation and clinical significance of needle knife medicine were discussed. Accurate position is one of the characteristics of acupoints selection of needle knife medicine. As for the acupoints selection method, the mean of body surface localization is always used. The phanerous or palpable bone processes, muscles and tendons are taken as positioning marks; pressing areas where appear sour, numb, or distensible and other sensations is considered as the principle of press positioning. So acupoints position method is the combination of observation and palpation. Different insertion methods can effectively relieve the accretive bursae synovialis, tendon, joint capsule and the compressed nerve, so that shoulder bi syndrome is relieved.
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Acupuncture Therapy
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instrumentation
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methods
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Humans
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Needles
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Periarthritis
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therapy
4.An experimental study of T cell vaccination in inducing heterologous antigen-specific immune tolerance
Zhenlin ZHAO ; Yongzhang GUO ; Li LI ;
Chinese Journal of Immunology 1985;0(06):-
Objective:To investigate the effect and the mechanism of T cell vaccination in inducing heterologous antigen specific immune tolerance Methods:T cell vaccination were made from the spleen cells of SD rats, which were induced by ConA and were challenged with the spleen cells of guinea pig (the heterologous specific antigen) Normal SD rats were vaccinated intraperitoneally with TCV or 1640 culture buffer(blank control) respectively One way mixed lymphocyte reaction(MLR)?the apoptosis of peripheral T cells and the rate of CD4/CD8 in peripheral blood were assayed before and after vaccination.Results:MLR showed that the response captivity of SD rat spleen cells in TCV group were suppressed significantly after vaccination(P
5.Clinical features of 414 childhood cases with infectious mononucleosis at different age groups.
Xia GUO ; Qiang LI ; Ya-ning ZHAO
Chinese Journal of Pediatrics 2008;46(11):870-871
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Child
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Child, Preschool
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Female
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Herpesvirus 4, Human
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Humans
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Infant
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Infectious Mononucleosis
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diagnosis
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pathology
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virology
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Liver
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pathology
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Male
6.Application of annular plane systolic excursion z-score in evaluation of heart systolic function of fetus with heart failure
Xianfeng GUO ; Bowen ZHAO ; Yilin LI
Chinese Journal of Ultrasonography 2017;26(2):121-125
Objective To establish z-score model for fetal tricuspid annular plane systolic excursion(FAM-TAPSE) and mitral annular plane systolic excursion(FAM-MAPSE) based on gestational age(GA),then to evaluate the ventricle systolic function of fetus with heart failure.Methods One thousand and twelve normal fetuses and 24 fetuses with heart failure were involved. FAM-TAPSE and FAM-MAPSE were measured by free angle M-mode echocardiography,and FAM-TAPSE and FAM-MAPSE z-score models of normal fetuses were constructed by using first standard regression analysis with GA as independent variable.The fetuses with heart failure were divided into left heart failure (LHF) group and right heart failure (RHF) group by Tei index.Subsequently,the two parameters between normal and fetuses with heart failure were compared. Results The models used to calculate z-score for FAM-TAPSE and FAM-MAPSE were constructed,and GA had close correlation with them. Compared with normal fetuses,the mean z-scores of FAM-TAPSE and FAM-MAPSE were statistically different in fetuses with heart failure(P<0.001). The FAM-MAPSE z-scores of LHF and the FAM-TAPSE z-scores of RHF were all less than-2 z-scores.Conclusions The FAM-TAPSE and FAM-MAPSE z-scores decline in fetuses with heart failure and they can provide quantitative evidence in evaluation of heart systolic function,FAM-TAPSE and FAM-MAPSE z-score would be markers for assessing heart systolic function in fetuses with heart failure.
7.Value of annular plane systolic excursion difference in evaluation of heart systolic function of normal fetuses in ;the second and late trimester with echocardiography
Xianfeng GUO ; Bowen ZHAO ; Yilin LI
Chinese Journal of Ultrasonography 2015;(8):665-670,674
Objective To obtain the annular plane systolic excursion difference (APSED)of fetuses in second and late trimester by free angle M-mode (FAM)and tissue motion of annular displacement (TMAD)in order to assess the fetal ventricular function.Methods The mitral annular plane systolic excursion(MAPSE)and tricuspid annular plane systolic excursion(TAPSE)of four hundred and fifty five normal fetuses from 20 to 41 weeks were measured by FAM echocardiography,and the difference between them were calculated.Early diastolic velocities (Em)of the mitral annular and early diastolic velocities (Em')of the tricuspid annular were estimated by pulsed-wave tissue Doppler imaging (TDI),meanwhile systolic velocities (Sm)of the mitral annular and systolic velocities (Sm')of the tricuspid annular were also estimated by TDI.Fifty normal fetuses in the second and late trimester were choosed randomly,two-dimension imaging was obtained at the apical four-chamber view,then mitral annular plane and tricuspid annular plane displacement curve were acquired at the same time by using off-line QLab 8.1 software,and the differences in the peak time between them were compared.The trace of annular displacement were recorded by color tissue tracking technology.Results There was a significant difference between FAM-TAPSE and FAM-MAPSE in different gestational weeks (P <0.05),FAM-TAPSE was growing with the increase of gestational weeks,FAM-APSED showed significant positive correlations with gestational week, Em,Sm,Em' and Sm'.Annular plane displacement curve showed that TMAD-TAPSE was higher than TMAD-MAPSE in the entire cardiac cycle,and there was no statistically significant difference in time to peak of the annular plane displacement curve between them(P >0.05).Conclusions The APSED existed in the second and late trimester continually.It was considering associated with fetal ventricular torsion.As the growth of gestational weeks,the increase of APSED reflected the enhanced reserve capacity of the fetal ventricular torsion.APSED can reflect the longitudinal motion and torsion movement of fetal ventricle quantitatively,and can be used as a new index to assess the fetal cardiac function.
8.Prognostic significance of lymphatic density and mircovessel vessel density in breast invasive ductal carcinoma
Yingchun ZHAO ; Yong LI ; Guo SANG
Journal of Endocrine Surgery 2013;7(5):371-375
Objective To investigate tumor lymphatic and mircovascular densities as prognostic markers in 69 cases of invasive breast cancer treated with partial or total mastectomy and lymph node dissection.Methods 69 cases of untreated primary unilateral invasive ductal breast carcinomas were selected.All cases were immunostained with D2-40 and CD31.Positively stained microvessels were counted in densely vascular/lymphatic foci (hot spots).The relationship between lymphatic vessel density (LVD),microvessel density(MVD) and prognosis was analyzed.Results The mean ± SD peritumoral lymphatic vessel density (P-LVD) was significantly higher than intratumoral LVD(I-LVD) (P < 0.01).There was a positive correlation of D2-40 LVD(peritumoral) counts with lymph node metastasis (P =0.003) and clinical stage (P =0.026),and CD31 microvessel density was found significantly associated with clinical stage(P =0.038).No significant association was found between above variants with I-LVD (P > 0.05).Univariate analysis showed that survival time was impaired by higher MVD and higher peritumoral LVD(P =0.007,P =0.008,P =0.014,P =0.024,log-rank test),but not I-LVD.Multivariate survival analysis showed that MVD,peritumoral LVD,TNM stage and lymph node metastasis were independent prognostic factors for overall survival.Conclusions Peritumoral LVD and MVD were significantly correlated with survival status of patients with breast cancer.This is the first attempt to predict prognosis of breast cancer patients by quantifying the peritumoral LVD and MVD.
9.Advances of Src kinase family and paclitaxel resistance
Lu LU ; Qinglong GUO ; Li ZHAO
Journal of China Pharmaceutical University 2017;48(4):377-383
Src family kinase (SFK) highly expresses in many types of cancers,broadly adjusting their malignant behaviors.Paclitaxel is a widely used chemical agent.However,because of constant resistance,the effect of paclitaxel has been greatly attenuated.The present review summaries the recent research progress of the structure and adjustment of SFK and the molecular mechanism of paclitaxel resistance,as well as the regulation of SFK on paclitaxel resistance,in order to provide new references and evidences upon the paclitaxel-based tumor therapy.
10.Comparison of efficacy of different doses of remifentanil combined with propofol for colonoscopy
Bing GUO ; Hongwei ZHAO ; Jincheng LI
Chinese Journal of Anesthesiology 2013;(4):459-461
Objective To compare the efficacy of different does of remifenanil combined with propofol for colonoscopy.Methods Ninety ASA Ⅰ or Ⅱ patients,aged 35-63 yr,weighing 45-72 kg,scheduled for elective painless outpatient colonoscopy,were randomly divided into 3 groups (n =30 each):remifentanil 0.2 μg/kg group (group Ⅰ),remifentanil 0.5 μg/kg group (group lⅡ) and remifentanil 1.0 μg/kg group (group Ⅲ).In groups Ⅰ-Ⅲ,remifentanil 0.2,0.5 and 1.0μg/kg were injected over 60 s,respectively,and then propofol 1.0 mg/kg was injected intravenously for induction.The colonoscope was inserted after loss of eyelash reflex.When body movement appeared during examination,remifentanil 0.1 μg/kg + propofol 0.5 mg/kg,remifentanil 0.25 μg/kg + propofol 0.5 mg/kg,and remifentanil 0.5μg/kg+ propofol 0.5 mg/kg were added in groups Ⅰ,Ⅱ and Ⅲ,respectively.The operation time,induction time,emergence time,examination room discharge time,and body movement,hypotension,bradycardia,hypoxemia and respiratory depression during operation were recorded.Results There was no significant difference in the operation time,induction time,emergence time,and examination room discharge time between the three groups (P > 0.05).Compared with group Ⅰ,the incidence of body movement was significantly decreased,and the incidences of hypotension and respiratory depression were increased in group Ⅱ,and the incidence of body movement was significantly decreased,and the incidences of hypotension,hypoxemia,bradycardia and respiratory depression were increased in group Ⅲ (P < 0.05).The incidences of hypoxemia,bradycardia and respiratory depression were significantly higher in group Ⅲ than in group Ⅱ (P <0.05).Conclusion The optimum dose of remifentanil is 0.5 μg/kg when combined with propofol for colonoscopy.