1.A randomized study comparing the efficacy and bleeding pattern of Implanon and Norplant hormonal contraceptive implant
Chinese Journal of Obstetrics and Gynecology 2001;0(07):-
Objective To compare the contraceptive efficacy, tolerability and bleeding patterns of Implanon and Norplant Methods One hundred healthy female volunteers received either Implanon (75 cases) or Norplant (25 cases) for 4 years, followed up with complain, bleeding patterns, hemoglobin, blood pressure, weight Record the time of insert and remove Results There were no pregnancies during the study Per 90 day reference period, the average number of bleeding spotting days with Implanon decreased from 33 day in the first period to 21 day in the last year, and Norplant decreased from 31 day to 20 day The average bleeding number of times was 2 25 of Implanon and 2 99 of Norplant per reference period( P
2.Nursing Management with a Scientific Management Conception
Caiqin WU ; Lihong SHI ; Xiaoying DU
Chinese Medical Ethics 1994;0(06):-
Behavior Science pays more attention to humanity,and regards the management of people as the key factor of management.Nursing management is the process targeting at the progress of nursing quality and work efficiency.Under the new circumstance,it is very important for the head nurse to supervise the nurses with a scientific management conception in the hospital howadays which will encourage the nurses to fully exert their abilities. and help to improve the nursing quality finally.
3.Bioinformatics analysis of OLFM1 epitope and preparation of polyclonal antibody
Xiaoying WANG ; Peige DU ; Chunfeng WU ; Xiao HAN
Chinese Journal of Immunology 2000;0(08):-
Objective:To analyze OLFM1 by bioinformatics and prepare its polyclonal antibody.Methods:According to the bioinformatics analysis and prediction of the possible high structure,hydrophobicity and antigenicity of OLFM1 and the principal of antibody project,a partial peptide of OLFM1 with 20-amino acid residues with was synthesized after homology search.The synthesized peptide was then used to immunize rabbit.The specificity and titer of polyclonal antibody against OLFM1 were identified via ELISA and Western blot.Results:Polyclonal antibody against OLFM1 was proved to recognize OLFM1 protein specifically,and its titers reached 1?32 000.Conclusion:By the bioinformatics analysis and prediction,the hydrophilicity and antigenicity of OLFM1 are analyzed.The polyclonal antibody against OLFM1 is successfully obtained.
4.Diagnosis of thyroid microcarcinoma using contrast-enhanced ultrasound
Jue JIANG ; Na LIU ; Qi ZHOU ; Xiaopeng DU ; Xiaoying LEI
Chinese Journal of Ultrasonography 2012;(7):595-597
Objective To evaluate the diagnostic value of thyroid microcarcinoma using contrastenhanced ultrasound(CEUS).Methods The CEUS characteristics of 31 lesions in patients with thyroid microcarcinoma which were confirmed by surgery and pathology were retrospectively analyzed.[Results]The enhancement features of 31 lesions were hypoenhancement,morphological irregularity,and lack of a complete envelope.The time intensity curve showed late washed in and late washed out.The start-time of the lesions was later than that of normal thyroid tissue.The enhancement intensities of the lesions were lower than that of normal thyroid tissue.Conclusions The contrast enhancement patternshypoenhancement,suggested that the CEUS might provide a useful,quantitative analysis method for the diagnosis of thyroid microcarcinoma,which can improve diagnostic confidence in thyroid microcarcinoma.
5.Estimation of glomerular filtration rate with different background region of interest for renography in severe renal insufficiency patients
Xiaoying DU ; Yangjun ZHU ; Linfa LI ; Qiang HE ; Jianghua CHEN
Chinese Journal of Nephrology 2008;24(4):282-286
Objective To evaluate the improvement of diagnostic accuracy with background region of interest(ROI)rectification for 99mTc-DTPA renography in patients with GFR≤plasma sampling method). Methods Thirty-three patients(age>20 years,male/female=13/20)dose of 111 MBq/0.5 ml of 99mTc-DTPA was injected into an antecubital vein.The background ROI was selected below the kidney(Gates method,method a)or around the kidney(method b),then these two different GFR(GFRa,GFRb)were automatically estimated by computer.Meanwhile,3 ml blood samples were collected 2 h and 4 h after injection respectively,and radioactivity of 1 ml plasma was measured.GFR was calculated by dual plasma sampling method(GFRp)and the results were all standardized with the body surface area.The accuracies and correlations of GFRa and GFRb were compared to GFRp respectively. Results The correlation coefficients were ra=0.602 and rb=0.834.The median of difference of GFRa and GFRb was 8.33,-4.41.The median of absolute difference of GFRa and GFRb was 8.33,4.49.The accuracies within±15%,±30%and±50%of GFRa were 24.2%,30.3%and 48.5%,and those of GFRb were 33.3%,51.5%and 81.8%.Conclusion The background ROI around kidney can obviously improve the diagnostic accuracy of 99mTc-DTPA renography in patients with severe renal insufficiency.
6.Pharmacokinetic profiles of lopinavir(LPV) in Chinese HIV-infected patients
Xiaoying ZHANG ; Zhengyin LIU ; Xiaoli DU ; Qiang FU ; Taisheng LI
Chinese Journal of Internal Medicine 2015;54(5):431-433
Objective To evaluate the pharmacokinetic profiles of lopinavir(LPV) in Chinese HIV-infected patients.Methods A total of 16 patients were enrolled in the LPV pharmacokinetic study.Blood samples were collected before LPV intake and 0.5,1.0,1.5,2.0,2.5,3.0,4.0,6.0,8.0,10.0,12.0 h after administration.Serum level of LPV was determined by the developed high performance liquid chromatography (HPLC) method.The pharmacokinetic profiles were assessed by WinNonlin software.Results The non-compartment model pharmacokinetic (PK) parameters were as follows:the peak time of LPV (Tmax) (3.88 ± 0.23) h,maximum plasma concentration (Cmax) (10.36 ± 3.42) mg/L,minimum plasma concentration (Cmin) (2.18 ± 0.34) mg/L,the 24 h area under plasma-concentration-time curve (AUC0-24) (116.22 ± 15.68) mg · h · L-1,half life(T1/2) (4.5 ± 0.13) h,and clearance rate (CL/F) (3.44 ± 1.34) L/h respectively.Conclusions The pharmacokinetic profiles of LPV in Chinese HIV-1 infected patients demonstrate lower Cmin than those of reported studies,while other parameters are similar.Patients should be educated for compliance based on the narrow gap between Cmin and minimum effect concentration.
7.Analysis of SCI paper publication of doctoral students of Capital Medical University in recent ;five years
Yiru DU ; Dengfeng XUAN ; Ling MA ; Xiaoying YANG
Chinese Journal of Medical Education Research 2013;(12):1214-1218
Objective To estimate the incentive and guidance of degree policy for the doctoral student's capacity-building. Methods Totally 1185 published SCI papers completed by 1 013 doc-toral students from 2008 to 2012 in Capital Medical University were filed and impact factors of these SCI journals taken as analysis objects were organized using Microsoft Office Excellsoftware. ANOVA was used for data procession and t-test was used for statistical analysis. P<0.05 signifies statistically significant difference. Results This study showed that 97%doctoral students can complete SCI paper publication in compliance with requirements of doctoral degree policy. Quality of SCI papers of aca-demic degree PhDs was higher than that of professional degree PhDs(P=0.00). Level of SCI papers of PhDs in basic disciplines was higher than that of PhDs in clinical disciplines (P=0.00). In addition, this study found that higher leveled SCI papers originated primarily from the national key disciplines and co-first authors. Conclusions The appropriate degree policies play an important guiding role in enhancing the quality of doctoral students' education. Degree-granting units should make more specific guidance policies according to different types of disciplines and cultures, such as raising published arti-cle requirements to the clinical professional PhDs, improving and standardizing relevant degree poli-cies about SCI papers published by co-first authors, strengthening disciplinary conditions building, etc.
8.Establishment and application of a fluorescence quantitative Taqman-PCR detection method of mouse poxvirus
Jiangtao DU ; Fangwei DAI ; Shasang ZHOU ; Xiaoming SONG ; Yu LV ; Xiaoying SA
Chinese Journal of Comparative Medicine 2015;(6):59-64
Objective To establish a fluorescence quantitative Taqman-PCR method for rapid and accurate detection of mouse poxvirus.Methods After sequence alignment and comparison, ERPV_027 gene was selected as the primer and probe design gene.Furthermore, the specificity, sensitivity, stability and reproducibility of these primers and probes were detected.Results The detection limitation of this method was 68 copies/μL.Data showed that this method has high specificity, which specifically amplifies mouse poxvirus, with no amplification signal of mouse hepatitis virus, Sendai virus, Salmonella and some other viruses and bacteria.This method also showed good stability and reproducibility. Conclusions This study has successfully established a fluorescence quantitative Taqman-PCR method for detection of mouse poxvirus, with high specificity, sensitivity, good stability and reproducibility, and a broad application potential.
9.Designation of gACE epitope and preparation of its polgclonal antibody
Liping AN ; Xiaoying WANG ; Xiao HAN ; Guangyu XU ; Beiying AN ; Song YANG ; Peige DU
Chinese Journal of Immunology 1985;0(03):-
Objective:To prepare gACE polyclonal antibody for functional study of gACE.Methods:According to the bioinformatics analysis and prediction of the possible conformational structure,hydrophobicity and antigenicity of gACE and the principal for antibody production,a partial peptide with 18-amino acid residues of gACE was synthesized after homology search.The synthesized peptide was then used to immunize after coupling with KLH.The properties of anti-gACE were analyzed by ELISA,Western blot and immunohistochemistry.Results:The antigenicity was repredicted by bioinformatics analysis.The polyclonal antibody against gACE was successfully obtained and its specificity and sensitivity we conformed by ELISA,Western blot and immunohistochemistry.Conclusion:By the bioinformatics analysis and prediction,the hydrophilicity and antigenicity of gACE are analyzed.The antibody of gACE is successfully obtained.
10.Diagnostic value of contrast-enhanced ultrasound in calcified thyroid nodules
Yongbo XU ; Hua WANG ; Qi ZHOU ; Jue JIANG ; Wenqi MA ; Xiaopeng DU ; Xiaoying LEI
Chinese Journal of Ultrasonography 2013;(1):55-58
Objective To evaluate the diagnostic value of conventional ultrasound and contrastenhanced ultrasound(CEUS) in calcified thyroid nodules.Methods 122 cases of calcified thyroid nodules confirmed by pathology were underwent conventional ultrasound and CEUS.The sensitivity,specificity,positive predictive,negative predictive and diagnostic coincidence rate of conventional ultrasound and CEUS were evaluated.Receiver operating characteristic (ROC) curve was constructed to assess the differential diagnosis value of conventional ultrasound and CEUS in calcified thyroid nodules.Results There were 73 benign and 49 malignant nodules among 122 calcified thyroid nodules.The sensitivity,specificity,positive predictive,negative predictive and diagnostic coincidence rate of conventional ultrasound were 49.98%,76.71%,58.54%,69.14% and 65.57%,while for CEUS were 89.80%,91.78%,88.00%,93.06% and 90.98%,respectively.There was statistical difference for each index between the two methods (all P <0.05).The area under ROC curve of CEUS was 0.908,which was bigger than conventional ultrasound.Conclusions Compared with conventional ultrasound,CEUS has higher value in differential diagnosis of benign and malignant calcified thyroid nodules.