1.Importance of interventional neuroradiology curriculum in neurology standardizedresidency training
Xiaolei SHEN ; Rong ZHAO ; Shuo WANG ; Fengdi LIU ; Wenting LI ; Bo ZHENG ; Jianren LIU
Chinese Journal of Medical Education Research 2014;(8):763-766
After more than3 years of pilot (since 2010), standardized training of resident physicians in Shanghai has made great progress, however, it still needs to be improved. Cerebral and spinal vascular diseases are main types of neurological diseases and they seriously influence people's life and health. Interventional neuroradiology plays an important role in the diagnosis and treatment of cerebral and spinal vascular diseases. However, in the current residency training system in Shanghai or other provinces of China, the training of interventional neuroradiology is not included. In this paper, the authors analyzed the important role of interventional neuroradiology in diagnosis and treatment of cerebral and spinal vascular disorders and discussed the feasibility, method, and time arrangement of including interventional neuroradiology curriculum into the schedule of neurology standardizedresidency training and hoped to provide reference for the relevant departments to formulate a future policy.
2.Establishment of interfering RNA library of acetyltransferase genes and its infection of HepG2.2.15 cells
Fengdi LI ; Kehui LIU ; Haiqing WU ; Weikiang TANG ; Gangde ZHAO ; Xiaogang XIANG ; Yumin XU ; Qing XIE ; Hui WANG
Chinese Journal of Infectious Diseases 2014;(11):649-652
Objective To construct lentivirus vectors carrying 16 short hairpin RNA (shRNA) expression cassettes targeting histone acetyltransferases and provide a powerful research approach to explore the mechanism of epigenetic genes in regulating hepatitis B virus (HBV).Methods Following the rule of short shRNA primer design,eight-pair primers (A ~ H )for each gene,which had stable interfering efficiency,were designed.The annealed primers were connected to the empty lentiviral vectors of shRNA for transformation.In order to confirm the positive clones,clones were analyzed by real-time polymerase chain reaction (RT-PCR ).Then, qualified plasmids were verified by enzyme digestion technology.Four shRNA lentivirus plasmids against the same gene were mixed to build lentivirus respectively.After the virus transfected into 293T cells for 48 and 72 hours,supernatants were collected to infect HepG2.2.15 cells.The percentage of fluorescent cells were observed and assessed by microscope 72 hours after infection.Results One hundred and twenty-eight lentiviral vectors of RNA interference (RNAi)library were constructed against 16 histone acetyltransferases and more than 80% of HepG2.2.15 cells were infected with lentivirus 72 hours after infection.Conclusions Sixteen shRNA lentivirus vectors against histone acetyltransferase are successfully constructed.Thus,a solid foundation for the study of the effect of human histone deacetylase on HBV replication is established.
3.Correlative analysis on MRI and pathological characteristics findings of uterine carcinosarcoma
Jinzhi FANG ; Zhengxian LEI ; Renwei LIU ; Fengdi FENG ; Yuzhong ZHANG
Journal of Practical Radiology 2018;34(5):733-735
Objective To investigate the relationship between MRI and pathological features of uterine carcinosarcoma(UCS).Methods 13 cases of UCS which were confirmed by surgery and pathology were collected,MRI plain scan and enhanced scan were carried on all of the patients,the pathological tissue was got after operation for conventional HE and immunohistochemical staining.The MRI representation and pathological tissue composition of all the 13 cases were analyzed and summarized.Results 8 cases were occurred in uterine body,3 cases were in the cervix and 2 were involving the uterine body and cervix at the same time.The MRI manifestations of them were enlarged uterine size with irregular masses showed,intermediate or hypointensity intensity signal on T1 weighted and hyperintensity or intermediate intensity signal on T2 weighted,necrosis and cystic lesions were showed in 5 cases,2 cases hemorrhage were displaied which showed hyperintensity signal on T1 weighted,4 cases were endometrial thickening,all of the cases were heterogeneous enhancement;the pathological showed different proportion of carcinorma and sarcoma were visible in all the 13 cases of UCS.Conclusion UCS has complex components histopathologically,including both carcinoma tissue and sarcoma tissue.The heterogeneous signal of cystic degeneration,necrosis and hemorrhage within tumor in MRI could help the diagnosis of UCS.
4.Real world study of ixazomib combined with lenalidomide and dexamethasone in treatment of multiple myeloma
Fengdi WANG ; Jianming YU ; Fei ZHAO ; Haiming KOU ; Lin LIU ; Fang LIU ; Chun ZHANG
Journal of Leukemia & Lymphoma 2022;31(2):87-91
Objective:To investigate the efficacy and safety of ixazomib combined with lenalidomide and dexamethasone (IRd) regimen in treatment of multiple myeloma (MM) patients in the real world practice.Methods:The clinical data of 24 MM patients treated with IRd regimen from January 2019 to January 2021 in the Union Hospital, Tongji Medical College, Huazhong University of Science and Technology were retrospectively analyzed, and their efficacy and adverse reactions were analyzed. Among the 24 patients, 5 patients were relapsed and refractory (relapsed/refractory group), and 19 newly treated patients (conversion group) who responded to bortezomib induction therapy but converted to IRd regimen due to adverse reactions or other reasons.Results:The 24 patients were treated for a median of 4 cycles (2-7 cycles), with 8 cases of complete remission (CR), 6 cases of very good partial remission (VGPR), 8 cases of partial remission (PR), 1 case of disease progression (PD), 1 case of minimal response (MR), and the overall response rate (ORR) was 91.7% (22/24); the median progression-free survival (PFS) time was 15 months (95% CI 6.6-23.4 months); 6 CR patients were negative for minimal residual disease (MRD). The common adverse reactions were hematological adverse reactions, peripheral neuropathy, fatigue, gastrointestinal reactions, and infections. The incidence rate of grade 3-4 adverse reactions was 25.0% (6/24). In the relapsed/refractory group, the best efficacy was VGPR in 1 case, PR in 3 cases, and MR in 1 case, all patients withdrew from the IRd regimen therapy due to PD after transient remission or poor effect; in the conversion group, the best efficacy was CR in 8 cases, VGPR in 5 cases, PR in 5 cases, and PD in 1 case, 57.9% (11/19) patients maintained their original best response, and 36.8% (7/19) patients improved their best response to CR; the difference in median PFS time between the two groups was statistically significant (7 months vs. not reached, P = 0.018). Conclusions:The IRd regimen is safe and effective for MM patients, especially for the conversion patients after effective bortezomib induction therapy. Although patients with relapsed/refractory MM who have previously used multi-line therapy respond to IRd regimen, the duration of remission is limited.
5.A survey concerning the knowledge of the Chinese Guidelines of Diabetes Prevention and Treatment among medical staff from hospitals at different levels in Shanghai
Yingxia ZHOU ; Liebin ZHAO ; Luo LU ; Bin DONG ; Lizhen SU ; Jingyan TIAN ; Zhiqin CUI ; Aiping MA ; Min LIU ; Huiqun HUANG ; Jialin YANG ; Ling CHEN ; Hongguang SHENG ; Fengdi LU ; Yingyao CHEN ; Guang NING
Chinese Journal of Endocrinology and Metabolism 2011;27(8):636-638
To analyze and evaluate the knowledge of Chinese Guidelines of Diabetes Prevention and Treatment in Shanghai medical staff. 175 medical staff working in endocrinology or community health were enrolled and evaluated by a questionnaire of guidelines about the state of professional, training, and related knowledge. Only 16. 6% medical staffwere trained about the guidelines( 46. 67% from the general hospitals, 14. 75% from secod-level hospital and 7. 14% persons from the community hospitals, P<0. 01 ). The total correct answer rate of the guidelines was 37. 36%. The correct rate of community hospitals was lower than others( P<0. 05 ). The rate of doctors' was higher than nurses'( P<0. 05 ). There were difference between doctors and nurses with the key point of diabetes care knowledge in different level hospitals. The effective method of clinical training in diabetes care should be explored. We still have to work hard to promote the effect of diabetes control and prevention. Effective training about the guidelines should be enhanced. The cooperation between general hospitals and community health institutions in diabetes prevention and treatment should be enhanced.
6.Adult multisystem Langerhans cell histiocytosis involving parathyroid glands and pancreas.
Wolin HOU ; Ming LI ; Fang LIU ; Jing SHEN ; Jun YIN ; Songhua WU ; Fengdi LU ; Weiping JIA
Chinese Medical Journal 2014;127(8):1597-1597