1.The predictive value of DWI for progression free survival in patients with cervix cancer after neoadjuvant chemotherapy
Hong ZHU ; Li ZHU ; Shiyu HAN ; Fang FANG ; Yang YU
Practical Oncology Journal 2014;(6):519-523
Objective To evaluate the predictive value of diffusion weighted imaging ( DWI) for progres-sion free survival(PFS)in patients with cervix cancer after neoadjuvant chemotherapy (NACT).Methods Thirty two consecutive patients with pathologically confirmed cervical cancer underwent MRI including DWI before and after NACT.Pathologic results and MR images were reviewed .Univariate analysis was applied by Kaplan -Meier method.The Cox proportional hazard model was used to evaluate prognostic variables for multivariate analysis .Re-ceiver operating characteristic ( ROC) curves were used to find optimal cutoff values of independent prognostic fac -tors for disease progression.Results Of 32 patients,10 had disease progression during follow -up period.In uni-variate analysis,FIGO stage,tumor size,the depth of tumor invasion,lymph node metastasis and ADC changes be-tween before and after neoadjuvant chemotherapy (ΔADC) were significantly associated with the disease progres-sion.In multivariate analysis , FIGO stage and ΔADC were the independent prognostic factors for PFS .Optimal cutoff values that determined by ROC curves analyses were FIGO stage ⅡandΔADC 0.31.Area under the ROC curve(AUC)of FIGO stage and ΔADC were 0.841(sensitivity 90.0%,specificity 68.2%)and 0.864(sensitivity 80.0%,specificity 81.8%),respectively.Conclusion In patients with cervix cancer after NACT ,FIGO stage andΔADC are significant predictive values for PFS .
2.Analysis of anesthesia residency training program dropout of West China Hospital
Liqun FANG ; Qian LI ; Tao ZHU
Chinese Journal of Anesthesiology 2011;31(9):1143-1145
One hundred forty-four residents registered at department of anesthesia of West China Hospital from 1999 to 2010.The duration of residency training is 5 years (3 + 2).The residents enrolled during 1999-2002 were on the staff.They were assigned to work at this hospital after graduation from medical school and became staff anesthesiologist of this hospital after 5 year training.The residents enrolled during 2003-2010 were trainees and not on the staff.They had to apply for a job as anesthesiologist somewhere after 5 year training.After 3 year training the residents are qualified to undergo subspecialty training.Thirty-nine of the 144 residents dropped out of the training program.The reasons for their withdrawing from the program included finding a regular job,failing the qualifying examination,changing profession studying abroad and death.In order to reduce dropout rate,correct public opinion on the importance of residency training,raising the quality of the residents and improving income of the residents are needed.
3.Determination of drug release in vitro of atractylenolide Ⅰ liposome by RP-HPLC
Zhihao LI ; Xuesong ZHU ; Fang ZHENG
International Journal of Traditional Chinese Medicine 2010;32(6):533-534
Objective To establish a RP-HPLC method for the determination of drug release in vitro of atractylenolide Ⅰ liposomes. Methods The release behavior of the drug from liposomes was studied by the third method for dissolution. ZORBAX C18 column (4.6 mm × 250 mm, 5 μm) was used with a mobile phase of Methanol-Acetonitrile-0.2% from liposomes in vitro fitted the log-normal distribution equation and had a property of sustained release. Conclusion The method is simple, fast and selective. It is suitable for the determination of release profile in vitro of atractylenolide Ⅰ liposomes.
4.Value of Three-dimensional Interactive Localization of the Anterior Ethmoidal Canals in Minimally Invasive Nasal Surgery
Li ZHU ; Haibo WU ; Gaoli FANG
Chinese Journal of Minimally Invasive Surgery 2005;0(12):-
Objective To explore the value of three-dimensional interactive localization of the anterior ethmoidal canals(AECs)in minimally invasive nasal surgery.Methods Thin-section three-dimensional CT images of the paranasal sinus in 80 patients(160 sides)were analyzed by using interactive localization system.The length and angulation of the AECs were recorded.The relationship between the positions of the AECs and anatomical landmarks were viewed in coronal and sagittal planes.Results The length and angulation of the AECs were(6.9?1.8)mm and(126.6?16.0)?,respectively.The distance between the anterior ethmoidal foramen and the anterior ethmoidal canal to the roof was(7.0?2.2)mm and(2.8 ? 2.0)mm,respectively.The AEC was identified as a suspending separate canal in 35.0%(56/160)sides.In the AECs plane on coronal images,the sagittal part of middle turbinate was found as 74.4%(119/160),the basal lamella of middle turbinate was 25.0%(40/160),and the superior turbinate was 0.6%(1/160).While on the sagittal planes,the position of AECs located on the basal lamella of ethmoida,on the basal lamella of middle turbinate,between the basal lamella of uncinate process and the basal lamella of ethmoida,between the basal lamella of ethmoida,and the basal lamella of middle turbinate were found in 23.8%(38/160),45.0%(72/160),1.2%(2/160)and 30.0%(48/160)of the cases,respectively.Conclusion AECs can be measured and located correctly by three-dimensional interactive system.
5.Segmental resection of involved portal vein for the treatment of advanced pancreatic carcinoma
Jubo FANG ; Jianping ZHU ; Hongsheng LI
Chinese Journal of General Surgery 2001;0(10):-
Objective To evaluate segmental resection of involved portal vein (PV) in the surgical treatment of advanced pancreatic carcinoma (PC). MethodsIn our 22 advanced PC patients involving PV and/or superior mesenteric vein (SMV) extended pancreaticoduodenectomy or distal pancreatectomy plus extensive regional lymph node clearance were performed and cancer involved PV and/or SMV segment were resected enbloc. Results Among 22 cases, 6 underwent wedge resection and repairment of PV or SMV. Eight underwent segmental resection of PV or SMV followed by end-to-end anastomosis in 5,autotransplantation of great saphenous vein in 2, mesocaval shunt in one. The mean operation time was 7 5?h, the average blood transfusion was 600?ml, and there was no mortality in all cases. All 22 patients were followed up with a postoperative survival of 6 mos in one, 12 mos in 3, 18 mos in 6 cases, 24 mos in 8 and 36 mos in 4 cases. ConclusionsIt is rationale to resect the advanced PC en bloc with the cancer involved segment of PV and/or SMV in terms of low morbidity and long postoperative survival.
6.Application value and significance analysis of transcranial color-coded duplex examination and serum insulin-like growth factor-1 and neuron-specific enolase detection in the evaluation of the condition of cerebral infarction
Jun ZHU ; Zhenpeng LI ; Kaifeng FANG
Chinese Journal of Postgraduates of Medicine 2021;44(4):367-371
Objective:To explore the value and significance of transcranial color-coded duplex (TCCD) parameters, serum insulin-like growth factor-1 (IGF-1), neuron-specific enolase (NSE) levels in the evaluation of the condition of cerebral infarction.Methods:One hundred and ten patients with cerebral infarction in Anhui Wanbei Coal-Electricity Group General Hosptial were selected from April 2018 to February 2020, and TCCD examination was performed after admission. Blood samples were taken to determine the levels of serum IGF-1 and NSE, and corresponding treatment was given. The TCCD parameters and serum IGF-1 and NSE levels were compared in patients with different disease severity, plaque nature and different prognosis after 3 months′ follow-up. The correlation between the above indicators and the condition and plaque nature and the predictive value of the prognosis of patients with cerebral infarction were analyzed.Results:The level of IGF-1 were negatively correlated with the severity of disease ( r=- 0.650) and the nature of plaques ( r=- 0.711); and the level of NSE and resistance index (RI), pulsatility index (PI) were positively correlated with the severity of the disease ( r=0.609, 0.613, 0.645) and the nature of plaques ( r=0.589, 0.579, 0.608), and the differences were statistically significant ( P<0.05). After 3 months′ follow-up, the level of IGF-1 in the favourable prognosispatients was higher than that in the unfavourable prognosis patients, the levels of NSE, RI and PI in the favourable prognosis patients were lower than those in the unfavourable prognosis patients: (9.01 ± 2.64) μg/L vs. (25.13 ± 3.82) μg/L, 1.05 ± 0.19 vs. 1.32 ± 0.22, 0.69 ± 0.06 vs. 0.89 ± 0.07, and the differences were statistically significant ( P<0.05). The area under the curve (AUC) of RI, PI, IGF-1 and NSE in predicting the prognosis of cerebral infarction was less than that of combined diagnosis. Conclusions:The early use of TCCD parameters, serum IGF-1 and NSE combined detection can provide evidence-based guidance for evaluating the condition and prognosis of cerebral infarction.
8.Akt pathway and its regulatory mechanism in the peripheral blood mononuclear cells in patients with systemic lupus erythematosus
Dongyu CHEN ; Fang LI ; Guangting ZHU
Chinese Journal of Rheumatology 2016;20(6):368-371
Objective To explore the expression of Akt in peripheral blood mononuclear cells (PBMCs) and its regulatory role on its downstream molecules forkhead box transcription factor O1 (FOXO1) and Bim in patients with systemic lupus erythematosus (SLE).The role of Akt/FOXO1/Bim signaling pathway on PBMCs apoptosis was clarified.Methods Sixty-three SLE patients and 23 healthy controls were enrolled.PBMC were separated from the peripheral blood specimen.Western blot technique was applied to analyze the expression of Akt,FOXO1 and Bim.Flow cytometry was applied to analyze PBMCs apoptosis.The t-test was used for statistical analysis.Results The apoptosis of PBMCs in patients with active SLE [(16.3±4.0)%] was significantly higher than that of patients with inactive SLE [(5.6 ±2.9)%] and normal controls [(5.2 ±4.2)%,t=4.83,5.05;P<0.05].The levels of phosphorylation of Akt,FOXO1 and Bim expression was significantly decreased in patients with active SLE as compared with controls and patients with inactive SLE (P<0.05).However,these indicators had no significant difference between the controls and patients with inactive SLE (P>0.05).Conclusion ① The results of this study suggest that the expression level of Akt may be a good indicator for disease activity of SLE.Decrease of Akt may promote the occurrence and development of SLE.② Akt activity decline may lead to increased apoptosis of PBMCs.In this process,Akt may regulate its downstream FOXO1 and Bim phosphorylation levels which can enhance their ability to pro-apoptotic.
9.Minimally invasive transanal surgery in the treatment of cancerate rectal adenoma and early rectal cancer by using CUSA:a report of 15 cases
Jianming FANG ; Yuejun FANG ; Songtai ZHU ; Junda LI
Chinese Journal of Primary Medicine and Pharmacy 2009;16(12):2129-2130
Objective To evaluate the curative effect and superiority of minimally invasive transanal surgery in the treatment of cancerate rectal adenoma and early rectal cancer by using CUSA.Method Local resection was clone in 15 patients with cancerate rectal adenoma or early rectal cancer,the tumours were excised intactly by 5 mm CUSA(submucosal or superficial muscularis),the incisions were closed by continuous suture in the lumen.Results All of the tumours were excised intactly,the incisal edges and funduses were all negative.The operation time was 30~180 min,average:60 min,the amount of bleeding during operation was 0~30 ml,average:10 ml.Complications:temporary fecal incontinence in 2 cases,acute urinary retention in 1 case.Pathology after operation:villous adenoma accompanied by high grade intra epithelial neoplasia in 8 cases,mixed adenoma in 2 cases,intra-mucosal carcinoma in 5 cases.15cases were followed up 4~48 months,averge 18 months,no tumour recur in original place.Conclusion Minimally invasive transanal surgery by CUSA is a safe and effective operation in the treatment of cancerate rectal adenoma and early rectal cancer.It can keep the anus and improve the quality of life.
10.Expression and purification of rat brain NT-3 fusion protein and its antibody preparation
Zhiquan LI ; Yunyu HU ; Qingsheng ZHU ; Jinyu ZHU ; Fang LIU
Basic & Clinical Medicine 2006;0(03):-
Objective To clone NT-3 gene from normal rat brain and to purify its fusion protein and to prepare specific high titer antibody so that to provide a foundation for further study for peripheral nerve injury.MethodsWe amplified target gene by RT-PCR and cloned it into the vector of pMD-18T,then analyzed its sequence and compared it with the sequence from GenBank.We subcloned it into pRSET-A vector and introduced it into Escherichia coli BL21.The expression was induced by IPTG,and identified by SDS-PAGE.The fusion protein was purified by niccolum purify kit.We immuned rabbits with immunological adjuvant for specificity antibody preparation.Results We got a 777 bp gene segment by RT-PCR.The DNA sequence was identical to rat NT-3 gene sequence in GenBank.It proved that the target gene was correctly inserted into the vector.A new protein band of about 34 ku appeared on SDS-PAGE after induction of IPTG.A specific high titer antibody of 1∶64000 was gained by immunizing rabbits with adjuvant.