1.Relationship Between Histone Modifications and Gastrointestinal Cancer
Chinese Journal of Bases and Clinics in General Surgery 2003;0(05):-
Objective To review the relationship between histone modifications and gastrointestinal cancer.Methods Literatures on histone modifications and the relationship between histone modifications and gastrointestinal cancer were collected and reviewed.Results Histone modifications played an important role in the establishment of gene silencing during tumorgenesis.DNA methylation and histone modifications might interact with each other and form a complex network to establish and maintain gene silencing.Restoring gene function silenced by epigenetic changes in cancer had the potential of 'normalizing' cancer cells,which was named epigenetic therapy.Epigenetic therapy was very promising in prevention and treatment of gastrointestinal cancer,but many unsolved issues remain which need to be addressed in future studies.Conclusion Histone modifications are associated with the pathogenesis of gastrointestinal cancer.Restoring gene function silenced by epigenetic changes may have a great role in the prevention and treatment of gastrointestinal cancer.
2.To observe the curative effect of Weifuchun combined Shenqifuzheng pills in the treatment of chronic atroph-ic gastritis
Chinese Journal of Primary Medicine and Pharmacy 2015;(19):2939-2940,2941
Objective To observe the curative effect of Weifuchun combined with Shenqifuzheng pills in the treatment of chronic atrophic gastritis.Methods 85 cases patients were divided into the control group of 42 cases and the treatment group of 43 cases.The control group were treated with omeprazole enteric -coated capsules and colloidal bismmth pectin,while the treatment group were treated with Weifuchun and Shenqifuzheng pills.The course of treatment was two months.The patients were treated by endoscopy and pathological review after the treatment,then the datas were comparedwith that before treatment.Results The total effective rate of the treatment group was 67.44%,which of the control group was 40.48%,the was statistically significant difference between the two groups (χ2 =6.22,P <0.05).The symptom scores of stomach tingling,stomach fullness,facial darkness,anorexia and melena in the two groups had statistically significant differences (t =6.14,P <0.05).Conclusion Weifuchun combined with Shenqi-fuzheng pills have good curative effect in the treatment of chronic atrophic gastritis.It should be popularized in clinic.
3.Research progress of relationship between inflammation anti heart failure
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(6):649-653
Accumulating studies have proved that systemic inflammation is one of the important pathophysiologic mechanisms of heart failure. This article focuses on the sources of inflammation mediators and the causes of inflammation activation in heart failure including hemodynamic changes and oxidative stress, Toll-like receptors, microbial antigens and microorganisms, endotoxin hypothesis and neurohormonal activation. Furthermore, the effects of inflammation mediators such as cytokines and chemokines on heart failure are introduced. All lead to the conclusion that heart failure is a process with complex inflammation.
4.Survivin variants' expression in gastric cancer cells and its relationshiop with proliferation and apoptosis
Hua MENG ; Yulei SUN ; Dejian DAI
Chinese Journal of Digestion 2001;0(08):-
Objective To study the expression of three survivin splicing variants in gastric cancer and normal gastric mucosa and to evaluate relationship among the survivin variants' expression and proliferation, apoptosis in gastric cancer. Methods Real time quantitative RT-PCR was used to analyze survivin variants expression in 77 paired tumors and normal gastric mucosa in frozen samples at the mRNA level. The cell proliferation and apoptosis were measured by Ki-67 immunoln's to chemical analysis and TUNEL method in paraffin-embedded block of same cases, respectively. Results The sarvivin splicing variants were remarkably up-regulated in gastic cancers compared with those in normal tissues (P
5.Color Doppler ultrasonography in the diagnosis of malignant mullerian mixed tumor
Meng YANG ; Yuxin JIANG ; Qing DAI
Chinese Journal of Ultrasonography 2010;19(3):241-244
Objective To investigate the correlation of ultrasonographic characteristics and pathologic features for malignant mullerian mixed tumor(MMMT)and determine the diagnostic value of ultrasonography.Methods The uItrasonographic features of 10 MMMTs were analyzed retrospectively and the sonographic findings were compared with histological results and discussed the correlation.Results The morphologic features of US and histology were well associated.Large,solitary lesion,ill-defined irregular shape,honeycombed heterogenous echo-pattern,scattered cystic areas and increased irregular peripheral/internal color flow were typical US findings.Logistic regression analysis showed the type of tumor liquefaction to be the most significant independent predictor of vascularity.Conclusions Ultrasonography is helpful for the diagnosis of MMMT,the uhrasonographic characteristics of MMMT are well correlated to its pathologic features.
6.Protective effect of nimodipine on neuron of rats with focal cerebral ischemia-reperfusion inj ury and its mechanism
Wei HAN ; Huiyi JIANG ; Shengnan WEI ; Zhaojie MENG ; Lijun DAI
Journal of Jilin University(Medicine Edition) 2014;(3):598-601
Objective To investigate the protective effect of nimodipine on neuron of the rats with focal cerebral ischemia-reperfusion injury and the expressions of Bax and Bcl-2,and to clarify their mechanisms.Methods The focal cerebral-ischemia reperfusion model was induced by the middle cerebral artery occlusion(MCAO)method. 30 male Wistar rats were randomly divided into sham operation,model,and nimodipine groups(n=10).The neurological deficit score was performed after 2 h ischemia following 2 h reperfusion.The infarction was observed by TUNEL staining and the expressions of Bax and Bcl-2 were detected by SP immunohistochemistry method. Results Compared with model group, the number of apoptotic cells of the rats in nimodipine group was significantly decreased(P<0.05),the expression of Bax was significantly decreased (P<0.05),and the Bcl-2 expression was increased significantly(P<0.05).The morphological examination showed that the neurons of the rats in model group had serious necrosis and edema while the number of dead cells in nimodipine treatment group was reduced and the edema was improved.Conclusion Nimodipine has a protective effect on brain tissue of the rats with focal cerebral ischemia-reperfusion inj ury, which is closely related to the down-regulation of Bax and up-regulation of Bcl-2 and inhibition of the apoptosis of neuron.
7.Application of Lean Management in Hospital Drug Storehouse Management
Honghui TAO ; Zheng CHEN ; Hongbo MENG ; Jialin DAI
China Pharmacy 1991;0(04):-
OBJECTIVE:To consummate the flow sheet in drug storehouse management so as to improve the management efficiency.METHODS:5S management,visible management and demand-oriented management stated in lean management were applied in drug storehouse management.RESULTS:Due to the application of the methods in lean management,the storage capability of hospital drug storehouse was increased,medicine circulation was accelerated,and the work efficiency was enhanced.CONCLUSIONS:The application of lean management theory is conducive to the upgrading of scientific management as well as the enhancing of both efficiency and performance of hospital drug management.
8.Individualized teaching mode in course of Digital Signal Processing
Ruigang LIU ; Feng FU ; Meng DAI ; Xiuzhen DONG
Chinese Medical Equipment Journal 2015;36(5):143-145
The communication between the students and the teacher was introduced from three aspects of foregone course, communication channel as well as homework and experiment. The individualized teaching mode was described involving expounding common difficulty, assigning and reading over the homework, individualized tutoring after school, on-line responding to the student's question, prompting the student to complete programming and answering questions in evening classes. It's pointed out that the individualized teaching has to take both common knowledge and student difference into considerations. Individulized mode enhances the teaching efficacy greatly.
9.Analysis of ultrasonographic misdiagnosis of intravenous leiomyomatosis
Meng YANG ; Yuxin JIANG ; Qing DAI ; Jianchu LI
Chinese Journal of Medical Imaging Technology 2009;25(12):2261-2263
Objective To observe the ultrasonographic features of intravenous leiomyomatosis (IVL). Methods Ultrasonographic features, pathological results and the clinical manifestations of 7 patients with IVLs were analyzed retrospectively, and the causes of misdiagnosis were discussed as well. Results The median age of 7 IVL patients was 40 years old. Five patients underwent previously hysterectomy due to probable diagnosis of leiomyoma with the mean recurrent time of 13.8 months. Three lesions extended into the right atrium, 3 involved the inferior venous cava and 1 was confined in the pelvis venous. Ultrasonographic findings of IVL included uterine solid lesions with intravascular disease, solid occupied lesions in the pelvis with intravascular disease after hysterectomy, solid occupied lesions in the pelvis, large abdominal vessels and cardiac chambes with intravascular disease after hysterectomy. The main misdiagnosis cause was that IVL had similar ultrasonographic features with hysteromyoma, and intravascular lesions of IVL was hard to detect in the early stage. Conclusion Color Doppler ultrasonography is a valuable imaging mortality for detection and follow-up of IVL.
10.Effects of VEGF/bFGF sustained release microspheres combined with hyperbaric oxygen therapy on survival of uhralong random pattern flaps in rats
Xueguan XIE ; Mei ZHANG ; Mingsheng DING ; Yankun DAI ; Shengdong MENG
Clinical Medicine of China 2014;30(11):1152-1155
Objective To explore the effects of VEGF/bFGF sustained release microspheres combined with hyperbaric oxygen therapy on survival rates of uhralong random pattern flaps in rats.Methods Modified McFarlane flap rat models were randomly divided into 4 groups,VEGF/bFGF microspheres + hyperbaric oxygen group,VEGF/bFGF microspheres group,hyperbaric oxygen group and control group.At the end of 7 days,survival rates of flaps were calculated (Survival rate =Survival area/total area × 100%).The tissue samples were taken from middle portion of flaps to detect the neovascularization.Immunohistochemistry was used to detect the differential expression of VEGF.Results Seven days after the random pattern flap operation in rats,the survival rates of VEGF/bFGF microspheres combined with hyperbaric oxygen therapy experimental group,VEGF/bFGF microspheres experimental group,hyperbaric oxygen therapy experimental group,and control group were (89.54 ± 3.23) %,(73.54 ± 4.57) %,(71.89 ± 2.26) %,(50.36 ± 2.37) % respectively.The neovascularization counts of each group in part Ⅱ were (35.14 ± 4.21)/mm2,(23.34 ± 2.53)/mm2,(25.22 ±2.73)/mm2 and (17.37 ± 5.73)/mm2 respectively.VEGF cumulative absorbance in VEGF/bFGF microspheres + hyperbaric oxygen group,VEGF/bFGF microspheres group,hyperbaric oxygen group and control group were 78.39 ± 9.12,52.42 ± 13.59,49.84 ± 12.93,29.24 ± 10.35 respectively.In each experimental result group,there were significant difference between the combination group and the other groups (F =189.956,P < 0.05),but there was no significant difference between VEGF/bFGF microspheres experimental group and hyperbaric oxygen therapy experimental group.Conclusion VEGF/bFGF sustained release microspheres combined with hyperbaric oxygen therapy can promote flap neovascularization,increase the flap blood supply and then improve the survival of random pattern skin flaps.