1.Prognosis and Treatment Strategies of FIGO 2018 Stage ⅢC Cervical Cancer
Medical Journal of Peking Union Medical College Hospital 2024;15(6):1253-1260
Tumor stage and lymph node involvement are the most important prognostic factors for patients with locally advanced cervical cancer. For cervical cancer, gynecologic oncologists generally apply the criteria of the International Federation of Gynecology and Obstetrics(FIGO). However, in the current FIGO 2018 staging system, stage ⅢC is based only on the anatomical location of metastatic lymph nodes, without considering local tumor factors and other lymphatic status parameters, which limits its prognostic significance to a certain extent. The aim of this article is to summarize the influence of local tumor factors and different lymphatic status parameters on prognosis and treatment options for stage ⅢC cervical cancer.
2.Study on Effect of the Extracts of Polygonum lapathifolium on the Activity of ?-glucosidase
Jinfeng WEI ; Changqin LI ; Xing CHANG ; Yuxin LIU ; Wenyi KANG
China Pharmacy 2005;0(19):-
OBJECTIVE:To investigate the effect of the extracts of Polygonum lapathifolium on the activity of ?-glucosidase.METHODS:Soxhlet extraction was applied to extract overground part of P.lapathifolium,and the inhibition effect of extracts on ?-glucosidase was determined with 96-microplate-based method,and the inhibitory kinetic characteristics of methanol extract was investigated using Lineweaver-Burk method.RESULTS:The extracts from P.lapathifolium showed good inhibitory activity.The methanol extract had the highest inhibitory activity (IC50=2.13 ?g?mL-1)followed by ethyl acetate extract (IC50=3.826 ?g?mL-1),petroleum ether extract (IC50=230.86 ?g ? mL-1).And they were all higher than that of acarbose (IC50=1 103.01 ?g?mL-1) as positive control.Inhibitory kinetics test indicated that methanol extract was noncompetitive inhibitor.CONCLUSION:The extracts of P.lapathifolium have good inhibition effect on the activity of ?-glucosidase with a good prospect of development and utilization.
3.Evaluation of research quality for medical graduates
Danfei XU ; Xing CHANG ; Yuqing PEI ; Yan LIU ; Xin ZHOU
Chinese Journal of Medical Education Research 2017;16(8):777-779
Objective To investigate the research quality of present medical graduates and propose suggestions for improvement.Method A self-designed questionnaire entitled Investigating Questionnaire for Research Quality Analysis of Medical Graduates in Peking Union Medical College Hospital was distributed to the clinical and academic medical graduates in the hospital from July to August 2015.Among 276 collected questionnaires,270 were validated as effective.SPSS 18.0 software was used to statistically describe the result and to perform t test on different subgroups.Results The research quality average of the surveyed hospital was 10.28.Results revealed that in regard of the three aspects of research quality,research consciousness ranked first,followed by the research ability,while scientific spirit was the weakest.Academic medical graduates showed significantly higher scores than clinical graduates in terms of total research quality and every single aspect (P values less than 0.05).Conclusions To better cultivate the academic leaders in medical research,it is necessary to strengthen the research training for the graduates,practice their scientific thinking especially the clinical graduates,reinforce tutors' guidance,and promote communication and collaboration.
4.STUDY ON FERMENTATION CONDITIONS OF A 1.3-PD HIGH-PRODUCTION STRAIN FROM E. AEROGENES
Nai-Yu CHI ; Qing-Fang ZHANG ; Fu-You XING ; Yi LIU ; Chang-Jiang LIU ;
Microbiology 1992;0(06):-
The fermentation conditions of high 1.3 -propanediol-producing strain E. aero-N-56 were determined in this Paper. The optimum conditions of producing 1.3-PD were: initial pH 7.0, temperature 30℃, culture time 48 h, inoculum size 9% . Under the optimum conditions: the 1.3-PD productivity reached up to 23.68 g/L?d; the 1,3-PD yield of E. aero-N-56 up to 47.36 g/L in 30 L fermentor.
5.Design and implementation of medical insurance little catalogue warning function in HIS
Xing-Qiang WANG ; Chang-Xing LIU
Chinese Medical Equipment Journal 2017;38(10):45-47,61
Objective To execute medical insurance little catalogue warning in HIS to prevent the doctor from providing medical service beyond medical insurance coverage.Methods Medical insurance little catalogue was established to regulate the boundaries for medical services available for different patients,and corresponding software was embedded into the medical workstation to call medical insurance little catalogue so as to realize warning for the boundaries and reimbursement rate.Results The function decreased the doctor's workload and the patient's cost while enhanced the doctor's efficiency and the doctor-patient relationship.Conclusion The function is easy to realize with high feasibility,and thus is worthy promoting practically.
6.The cytogenetic characteristics of 178 acute myeloid leukemia patients
Hui LIU ; Naibai CHANG ; Lei PEI ; Shangyong NING ; Jiangtao LI ; Baoli XING ; Xiaodong XU
Chinese Journal of Internal Medicine 2011;50(8):683-686
Objective To explore the cytogenetic characteristics of acute myeloid leukemia(AML) patients.Methods The karyotype analysis was performed in 178 AML using the short-term culture of bone marrow cell and G-banding technique.Results Among the 178 patients,171 had enough metaphases for analysis and 128(74.9%)had clonal karyotypic abnormalities.Twenty-seven patients were secondary to myelodysplastic syndrome (MDS-AML),with 25 (92.6%) patients carrying clonal karyotypic abnormalities.Among the remaining 144 patients of de novo AML,103(71.5%)had clonal karyotypic abnormalities.The rate of abnormal clonal karyotype was higher in MDS-AML than that of de novo AML (P=0.021).Among the 171 patients,41(24.0%)were in favorable risk group,80(46.8%)in intermediate risk group and 50(29.2%)in adverse risk group.t(15;17)was the most common chromosomal aberration.The maiority intermediate risk chromosomal aberration was;normal karyotype.The most common cytogenetic abnormality among adverse group was a complex karyotype.Adverse cytogenetic aberrations,such as -5/5q-,-7/7q-,frequently occurred in conjunction with one another as part of a complex karyotype.Totally 75 patients were 60 years or older,among them,16.0%were in favorable risk group,48.0%in intermediate risk group and 36.0%in adverse risk group.Among 96 younger patients,30.2%were in favorable risk group.45.8%in intermediate risk group and 24.0%in adverse risk group.The rate of favorable risk chromosomal aberration was lower in elder patients than in younger(P=0.03 1).The rate of adverse risk chromosomal aberration and the rate of monosomal karyotype were higher in MDSAML than in de novo AML patients(P<0.001).Conclusions The most common favorable,intermediate and adverse chromosomal aberrations were t(15;17),normal karyotype and complex karyotype respectively.The karyotype was poor in MDS-AML and elder AML patients.
7.Q-analysis real-time ultrasonic elastography quantitative analysis in the diagnosis of breast benign and malignant lesions
Yu, ZHANG ; Chun-bo, LIU ; Yao, FU ; Ping, XING ; Chang-jun, WU
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(6):494-499
Objective To evaluate the value of GE′s Q-analysis real-time ultrasonic elastography quantitative analysis software in the diagnosis of breast diseases and explore the best cutoff point of the breast diseases diagnosis.Methods The elastograms of 71 breast lesions(66 patients)were evaluated by using the GE LOGIQ E9 with the Q-analysis software.All the 71 lesions were diagnosed as malignant and benign lesions by surgery or biopsy.The receiver operating characteristic (ROC)curves of the entirety elasticity rate and local elasticity rate was performed.We compared the areas under ROC curves ( AUC) of the two modalities and confirmed the best cutoff point of the breast diseases diagnosis .We also assessed the sensitivity and specificity of the two modalities .Lastly we assessed the ROC curves with Z test to determine whether the difference between the two modalities was significant .Results Among the 71 leisions (66 patients),there were 37 benign lesions and 34 malignant ones.The elastograms of the leisions showed that the elasticity of 37 benign leisions was good ,the hardness value was low and the texture was even .As for the 34 malignant leisions,the elasticity was bad,the hardness value was high and the texture was uneven .The AUC of the local modality was 0.899 ( >0.5).The AUC of the entire modality,was 0.985 ( >0.5).Both modalities were accurate for the diagnosis of breast diseases .When the cutoff point of entirety elasticity rate was set as 3.60,the sensitiveness was 82.4%and the specificity was 86.5%.When the cutoff point of local elasticity rate was set as 2.60,the sensitiveness was 97.1% and the specificity was 91.9%.The difference between the two modalities was significant (Z =2.621,P=0.0088).Conclusions Q-analysis real-time ultrasonic elastography quantitative analysis is able to evaluate the rigidity and texture of tissue and is valuable to distinguish benign breast lesions between malignant breast lesions .The sensitiveness and specificity of local modality are higher than that of entirety modality .
8.Clinical study of magnetic resonance diffusion tensor tractography on the evaluation of prognosis in patients with cerebral infarction
Jing ZHAO ; Wenlong CHANG ; Yunhe XU ; Xiaomei ZHAO ; Zhenyu XING ; Yonggang LIU
Clinical Medicine of China 2014;30(9):925-928
Objective To investigate application of diffusion tensor tractography (DTT) on evaluating motor dysfunction degree of patients with cerebral infarction and explore the relationship between infracted focus and cortical spinal tract(CST).Methods Forty patients with cerebral infarctions in the different periods and 30 healthy volunteers were enrolled our study.They all underwent DTT check and then established CST.Meantime,all the patients were measured ADL score according to activities of daily living (ADL) on admission and two months after the onset.Results DTT image was made for both in patients and health control people.The CST was built in people in control group and its shape was like the adults'.Its shape was from the precentral gyrus down to internal capsule and continued to pontine and medulla oblongata.Each successive was form good consistency.The DTT image of patients' health side was like normal and injury corticospinal tract was affected by influence of infarction area at different level,manifested as loss of discontinuity and anatomical configuration consistency.Based on the degree of CST,there were 9 cases in grade Ⅰ,20 cases in grade Ⅱ and 11 cases at grade Ⅲ.DTT image showed that the damage level of CST had an negative relation with ADL score at 2 month after therapy (r =-0.914,P < 0.05).Conclusion DTT can show the spatial positions of infarctions and CST at non-invasive lesion and analyze the influence of infarctions and corticospinal tract.Therefore,it can serve as the objective proof for judging the injury of the motor function and evaluating prognosis.
9.Hemocompatible coating of expanded polytetrafluoroethylene vascular graft based on cross-linked alginate/recombinant hirudin multilayer
Chang JIANG ; Xiuli YUE ; Fang MA ; Meng LIU ; Lei XING ; Nanqi REN
Chinese Journal of Tissue Engineering Research 2008;12(19):3765-3769
BACKGROUND: Thrombus formation and neointimal hyperplasia limit its use for revascularization of small-caliber vessels (<6mm diameter) in the coronary or peripheral circulation.OBJECTIVE: To improve hemocompatibility, the luminal surface of a small diameter expanded polytetrafluoroethylene (Eptfe) vascular prosthesis was modified with alginate and recombinant hirudin.DESIGN: Observational experiment.SETTING: This study was performed in Nanomedicine and Biosensor Laboratory, Bio-X Center, Harbin Institute of Technology from Marcy 2006 to June 2007.MATERIALS: The GORE-TEX Epife vascular grafts (W. L Gore & Associates, Inc., Flagstaff, AZ) used in this study were 4mm in internal diameter. rHir was obtained from Calbiochem, Germany. Sodium alginate (also called alginic acid sodium salt; medium viscosity) was purchased from Sigma.METHODS: A p-diazonium diphenyl amine polymer (PA) was used as an interlayer between alginate and recombinant hirudin (rHir). The diazonium moieties were capable of covalently coupling with electron-rich aromatic systems such as histidine and tyrosine residues of hirudin. No need for chemical pretreatment took all advantage by preserving the bulk properties with almost no effect on stability and elasticity of the Eptfe vascular graft. rHir amount on Epife surface Was determined by the Micro BCA (Bicinchoninic acid) Protein Assay kit.MAIN OUTCOME MEASURES: ① Determination rHir amount on Eptfe surface; ② Static water contact angles; ③ Attenuated total reflectance fourier transform infrared spectroscopy (ATR-FTIR) was employed to confirm the change taking place in the Eptfe graft surface modification process; ④ Characterization of the surface morphology and platelet adhesion by SEM; ⑤ APTT and PT; ⑥ Percent hemolysis.RESULTS: ① The amount of rHir adsorbed onto the Eptfe vascular was deduced to be 16.35 μg/cm2. ② Surface analysis ATR-FTTR revealed the presence of new functional groups on the modified graft surfaces. ③ The water contact angle of the modified graft surface decreased. ④ The longer APTT and PT value lower than 5% hemolysis level and dramatically decrease of platelet adhesion assay showed that rHir modified graft had great improved blood compatibility.CONCLUS10N: Cross-linked Alg/rHir onto Eptfe can improve luminal surface and hemocompatibility.
10.Effect of a modified culture method on detection rate of karyotype anomalies in elderly patients with multiple myeloma
Lei PEI ; Jiangtao LI ; Hui LIU ; Shangyong NING ; Baoli XING ; Naibai CHANG
Chinese Journal of Geriatrics 2013;32(12):1312-1315
Objective To evaluate the effect of a modified culture method on the karyotype anomalies detection rate in elderly patients with multiple myeloma (MM),and to explore the relationship between clinical characteristics and chromosome anomalies in multiple myeloma.Methods Two culture methods were applied on the bone marrow samples which obtained from 28 MM patients.One method was used to culture cells for 24 hours with interleukin 6 (IL-6) 10 μg/L and granulocyte-macrophage colony-stimulating factor (GM-CSF) 40 μg/L,and the other for 6 days.Karyotype was analyzed by G-banding technique.Results In the 24-hour culture group,no metaphases cell was found in 4 cases (14.3 %),karyotype anomalies were found in 6 cases in the other 24 cases,and the detection rate was 25.0% (6/24).In the 6-day culture group,no metaphases cell was found in 1 patient (3.6%),karyotype anomalies were found in 15 cases in the other 27 patients,and the detection rate was 55.6% (15/27).There was a significant difference in the detection rate of karyotype anomalies between the two groups (x2 =4.89,P < 0.05).In 27 cases with enough metaphases in the 6-day culture group,20 cases were newly diagnosed or in progression,among whom karyotype anomalies were found in 14 cases (70.0%,14/20),and 7 cases were in stable phase,among whom karyotype anomalies were found in 1 case (14.3%,1/7).The detection rate of abnormal karyotype was higher in newly diagnosed or in progressive patients than in stable patients (P <0.05).Conclusions 6-day culture method can improve the detection rate of karyotype anomalies in elderly patients with multiple myeloma,which is better than 24-hour culture method.The detection rate of karyotype anomalies is higher in newly diagnosed or in progressive patients than in stable patients.