1.Research on Etherification Reaction of Three Kinds of Isoflavones from Chickpeas
Bo LI ; Yongqiao LIU ; Haoxia SHI ; Tunhai XU ; Tonghua LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(5):786-790
This study was aimed to improve the drug activity of three kinds of isoflavones from Chickpeas.Biochanin A,formononetin and genistein were used as raw materials.Acetone was used as solvent.Potassium carbonate was used as catalyst.The etherification reaction was with 1,3-dibromopropane,1-bromopropane and 3-bromopropene.The results showed that 9 isoflavone ramifications were synthesized.This method was simple,easy to control with high yield.It was concluded that the product structure was confirmed by 1H-NMR,13C-NMR and ESI-MS analysis.It laid a foundation for the structural study basis in the further research of its drug activity.
2.Preliminary analysis of differentially expressed genes in esophageal carcinoma tissues
Wei LIU ; Ruihua SHI ; Hong ZHU ; Bo HAO
Chinese Journal of Digestion 2009;29(7):455-458
Objective To analyze the differentially expressed genes in esophageal squamons cell carcinoma (ESCC), para-cancerous tissue (PCT) and normal esophagus tissue (NET) using oligomicroarray and to identify the target genes related to the development and progression of esophageal carcinoma. Methods The total RNAs isolated from ESCC, PCT or NET using one step Trizol method were purified and reversely transcribed into cRNAs. The cRNAs were then fluorescence labeled and hybridized with Agilent oligomicroarray (21 074 probes). The fluorescence intensity features were detected by Agilent scanner and quantified by feature extraction software. The selected candidate genes were confirmed by real time real time fluorescent quantitative RT-PCR immunohistochemistry andWestern blotting.Results ① The oligomicroarray demonstrated that there were 38 up-regulated genes and 61 down-regulated genes. ② The real time fluorescent quantitative RT-PCR revealed that five genes (CTHRC1, INHBA, SPP1 ,LUM, HRK)were more differentially expressed in up-regulated genes. Of which, CTHRC1 displayed more disparity.③ Immunohistochemistry examination showed that the higher expression of CTHRC1 (56.5 %, 26/46) was observed in ESCC. There was significantly difference in expression of CTHRC1 between patients with or without lymph node metastasis (P<0.05). ④ CTHRC1 protein was expressed in both TE-13 and Eca-109 cell lines. Conclusion CTHRC1 is probably one of the most significant biomolecules in ESCC.
4.Vascular maps with dynamic contrast-enhanced MRI for diagnosis of breast cancer
Bo YIN ; Li LIU ; Meng SHI ; Daoying GENG ; Yadi LI
Chinese Journal of General Practitioners 2009;8(10):744-745
Total 52 patients with breast lesions underwent dynamic contrast-enhanced breast MRI; and the breast vascularization was scored on the MRI vascular maps with a range of 0 to 3. The mean number of vessels per ipsilateral breast in malignant cases was higher than that of benign cases (3.8±2.0 vs. 1.3± 1.0; P=0.000). When the breast vascularity score 0-1 was defined as benign and 2-3 was defined as malignant, the sensitivity and specificity was 79% and 83%, respectively. Results indicate that dynamic contrast-enhanced breast MRI is of value in diagnosis of malignant breast lesions.
5.Preoperative diagnosis and microsurgery of the optic gliomas:retrospective analysis of 7 patients
Bo LIU ; Yeshi LIANG ; Xiangen SHI ; Qingjun ZHANG
Journal of Peking University(Health Sciences) 2003;0(06):-
Objective: To summarize the clinical characteristics and therapeutic experience of optic gliomas. Methods: The clinical data of 7 patients of our department in the past 3 years were analyzed. Results: In this series of optic glioma patients, the average age was 18.7 years, the ratio of men to women was 4∶3,and 100% of the tumors were sub-totally removed. Diabetes inspidus was the most comman postoperative complication. Conclusion: The optic glioma is benign intracranial tumor with good prognosis. The key point of treatment is surgical resection combined with proper postoperative radiotherapy.
6.Study on non-enzymatic separation and culture method of adipose-derived stem cells
Ping LIU ; Chunmeng SHI ; Lingli HU ; Bo ZHANG ; Zhengguo WANG
Chongqing Medicine 2014;(10):1153-1156,1160
Objective To explore a separation and culture method of human adipose-derived stem cells(ADSCs) suitable for the clinical application .Methods The non-enzymatic method and the collagenase digestion method were adopted to isolate and culture the cells from the human adipose tissue in the individuals with liposuction .The characteristics of isolated mesenchymal stem cells were comparatively analyzed .Results The required time in the non-enzymatic method was one third of that in the collagenase di-gestion method and the cellular morphology ,reproductive capacity ,immunophenotype and differentiation potential of the isolated cells were consistent to those isolated by the collagenase digestion method .Conclusion The no-enzymatic method may isolate and culture ADSCs from the adipose tissue in the individual with liposuction ,which is a safety and reliable isolation and culture method of human adipose tissue-derived stem cells suitable for clinical application .
7.Three-dimensional reconstruction visualization system enhances the accuracy of lower cervical pedicle screw implantation
Bo LIU ; Yongqiang SUN ; Tongming WANG ; Zhongjie YANG ; Dapeng SHI
Chinese Journal of Tissue Engineering Research 2016;20(17):24479-24485
BACKGROUND:Pedicle screw implantation is a common method to repair many kinds of diseases of the lower cervical spine. Three-dimensional (3D) reconstruction visualization system can be used in order to improve the accuracy of the implant and improve the prognosis.
OBJECTIVE:To investigate the effect of 3D reconstruction visualization system on the accuracy of cervical pedicle screw implantation.
METHODS: The clinical data of 89 patients with cervical spine dislocation, who underwent cervical pedicle screw implantation, were analyzed retrospectively. Patients were divided into control group (46 cases) and observation group (43 cases) according to the navigation method. Patients in the control group underwent C arm X ray two dimensional navigation. Patients in the observation group underwent three-dimensional reconstruction visualization system navigation. Intraoperative placement time was observed, and the accuracy of screw placement was assessed in both groups. The cases were folowed up for 12 months, and the adverse events were recorded and compared.
RESULTS AND CONCLUSION: (1) Intraoperative implantation time was shorter in the observation group than in the control group, but no significant difference was found (P> 0.05). (2) Accuracy rate: There were no three types of nail cases in the observation group, and the accuracy rate was 93% (40/43). In the control group, two cases affected three types of nailing, and the accuracy rate was 81% (37/46). The accuracy rate was significantly higher in the observation group than in the control group (P < 0.05). (3) Postoperative folow-up: None suffered from nerve tissue injury to vertebral artery, blood vessel and spinal cord. The screws of the two groups were in stable condition, without screw breakage or loosening. (4) Results suggested that in lower cervical pedicle nail implantation, 3D reconstruction navigation system can effectively improve the accuracy of screw placement, and does not increase nailing time or lead to adverse events. It is a safe and effective navigation mode.
8.DRGs-based medical performance evaluation of tertiary hospitals in Yunnan
Yi SHI ; Hongyu XIN ; Haiyun LIU ; Xin GU ; Bo KANG
Chinese Journal of Hospital Administration 2014;30(3):217-220
Objective To identify objective methods for medical service performance evaluation,and means to improve the efficiency of medical services.Methods By means of collection of medical records from 10 tertiary hospitals in Yunnan in 2012,and Diagnosis-related groups of Beijing version(BJDRGs)as a risk-adjustment tool,medical service performance was made to such hospitals.Results The capacity,efficiency and medical safety of hospital of the hospitals were subject to a comprehensive evaluation of their medical service capabilities.In terms of discharged inpatients and total weight,hospital A were found to be the highest(77 458 cases,104 227.5 respectively),and hospital I the lowest(25 450 cases,38 162.28)among these hospitals in 2012; compared with other hospitals,DRG groups of hospitals A,b and D were found higher,while the case mix index(CMI)of hospitals e and I were higher.The expenditure index of hospital C is the lowest(0.9359,0.8514); the mortality in cases of low risk of hospitals B,c and D were the lowest,while hospital F was the highest.Conclusion DRGs as a risk adjustment tool,can significantly improve the reliability,science and continuity of medical service performance evaluation,providing reliable basic data for hospitals accreditation in Yunnan.
9.The diagnostic value of diffusion tensor imaging for gliomas grading at 3 .0T MRI
Bo LIU ; Hui XIE ; Wufei SHI ; Lian FENG ; Dengwei LI
Chongqing Medicine 2014;(15):1875-1877
Objective To explore the diagnostic value of axial diffusion tensor imaging(DTI) for gliomas grading at 3 .0T MRI , analyze the characteristics of different grades gliomas of axial DTI in order to improve diagnostic accuracy .Methods A retrospec‐tive analysis was performed involving a group of 37 cases of high grade glioma and 26 cases of low grade glioma confirmed by the pathological results in affiliated hospital of Luzhou medical college ,observation analysis was obtained in axial DTI ,peritumoral neu‐rofibrillary was divided into three types :displacement ,interruption and neurofibrillary tangles(NFT) .Results among the 26 cases of low grade glioma ,there were 18 cases of displacement ;8 cases of interruption ,no NFT ;among the 37 cases of high grade glio‐mas ,there were 9 cases of displacement ,21 cases of interruption ,and 7 cases of NFT (1 case of frontal lobe ,6 cases of temporal lobe);ordinal variables rank sum test in two independent samples between high grade glioma group and low grade glioma showed significant differences(Z= -3 .756 ,P<0 .05);χ2 test showed no significant difference(P>0 .05) ,frontal lobe appeared NFT in 1 case ,accounting for 2 .7% (1/37) ,temporal lobe appeared NFT in 6 cases ,accounting for 16 .2% (6/37) .Conclusion Peritumoral neurofibrillary of the low grade gliomas more performed displacement ,the high grade gliomas show more interrupts and NFT at 3 .0T MRI ,NFT in high grade gliomas is often seen in the temporal and frontal lobe .
10.Analysis and study on the factors of degenerative lumbar spondylolisthesis by multi-slice spiral CT
Bo HONG ; Jiguo SHI ; Heliang ZHAO ; Houning ZHANG ; Zhencui LIU
Chinese Journal of Postgraduates of Medicine 2014;37(17):9-11
Objective To explore the influencing factors of degenerative lumbar spondylolisthesis (DLS).Methods Sixty-one DLS patients (DLS group) were enrolled in this study.The control group was formed by 61 patients with same gender and age matched.The lesion position was L4 in two groups.The correlation of intervertebral joint angle,degeneration degree,lumbosacral angle and lumbar spondylolisthesis were analyzed.Results The intervertebral joint and sagittal angle in DLS group was less than that in control group[(37.11 ± 7.52)° vs.(42.44 ± 7.61)°] (P < 0.01).The lumbosacral angle between two groups had no significant difference (P > 0.05).The degeneration degree between two groups had significant difference (P < 0.01).Conclusion Intervertebral joint and sagittal angle and intervertebral joint degeneration degree have important roles in DLS.