1.Development of epigenetic treatment in myelodysplastic syndromes
Journal of Leukemia & Lymphoma 2009;18(11):690-693
It have been known that many epigenetic alterations palyed an important role in development of myelodysplastic syndromes (MDS). In contrast to genetic alterations, epigenetic alterations could be in principle pharmacologically reversed. Application of epigenetic drugs can reactivate inactivated suppressor genes. Epigenetic drugs mainly include demethylating agents and histone deacylase (HDAC) inhibitors, which are available in treatment. 5-AZA and decitabine as DNA demethylation agents have been approved by FDAof treatment in intermediate or high risk MDS, especially those old patients who are resistant to chemotherapy.HDAC inhibitors such as valproic acid are mostly employed in phase I trial, probably effective in treating low risk MDS, but treatment schedules and curative effects still have to be evaluated. The combination of demethylation agents and HDAC inhibitors may result in synergistic activity, but its therapeutic effect seems not to be superior to monotherapy of demethylation agents in current clinical trials, and it still need new clinical trials containing more cases and rational treatment schedules to identify safety and effect of combination.
2.Study of the efficacy and safety of diacerhein in the treatment of knee osteoarthritis
Jianglin ZHANG ; Dong-Feng LIANG ; Feng HUANG ; Xiao-Hu DENG ; Sheng-Guang LI ; Xiao-Feng LI ;
Chinese Journal of Rheumatology 2003;0(12):-
Objective To evaluate the efficacy and safety of diacerhein in the treatment of patients with knee osteoarthritis.Methods The efficacy and safety of diacerhein was randomly investigated in 42 pa- tients with knee osteoarthritis using parallel group methodology and a double-dummy technique to ensure dou- ble blind status with respect to diacerhein and control drugs diclofenac.Results Significant changes were ob- served in 20 meters walk pain,knee joint tenderness scale,WOMAC index scale,5F-36 health survey,knee joint swelling scale,compared with baseline(P>0.05)in both diacerhein and diclofenac group respectively.No difference was found between diacerhein group and diclofenae group.The patient global assessment and physi- cian's global assessment were similar in diacerhein group and diclofenac group(P>0.05).The side effect was similar in two groups.All of these side effects in gastrointestinal tract appeared to be transient.Conclusion Diacerhein can effectively relieve pain and swelling of knee osteoarthritis,and provides us a new effective and safe approach for treating knee osteoarthritis.
4.Analysis of Bilingual Teaching in Seven-year Program
Xiao-Feng LI ; Xiao-Hong GAO ; Li MA ; Bo SONG ;
Chinese Journal of Medical Education Research 2006;0(10):-
An investigation and analysis on the effect of current bilingual teaching has been done among the 2002rd seven-year program students by using questionnaire.The result can provide basic foundation for improving the quality of bilingual teaching.
6. The expressions of B7-H1 and Bcl-2 in human colorectal cancer and their clinical significance
Tumor 2012;32(7):555-558
Objective: To investigate the expressions of B7-H1 and Bcl-2 proteins in human colorectal cancer, and to explore the association of the expressions of B7-H1 and Bcl-2 with clinicopathological features. Methods: The expressions of B7-H1 and Bcl-2 proteins were detected by immunohistochemistry in colorectal cancer tissues and their corresponding para-cancerous normal tissues from 57 cases of colorectal cancer. The association of the expressions of B7-H1 and Bcl-2 with the clinicopathological features was analyzed. Results: The positive expression rates of B7-H1 and Bcl-2 in colorectal cancer tissues were both higher than those in para-cancerous normal tissues (P <0.05). Both of Bcl-2 and B7-H1 expressions in colorectal cancer tissues were negatively correlated with the degree of differentiation of colorectal cancer (P <0.01). The positive expression rate of B7-H1 was significantly elevated in patients with lymph node metastasis (Dukes' stage C-D) compared to the patients without lymph node metastasis (Dukes' stage A-B) (P <0.05). For the patients with colorectal cancer classified as well or moderately differentiated, the expression rate of Bcl-2 in patients with negative expression of B7-H1 was significantly higher than that in patients with positive expression of B7-H1 (P <0.01). Short-term followup showed that the B7-H1 was expressed in colorectal cancer tissues from the patients died of colorectal cancer. Conclusion: The expression of B7-H1 was correlated with the invasion and metastasis of colorectal cancer as well as the survival. The detection of B7-H1 combined with Bcl-2 may have an important clinical significance in the diagnosis, treatment and prognostic prediction for patients with well/moderately differentiated colorectal cancer. Copyright © 2012 by TUMOR.
7.Study of the damage effects of Helicobacter pylori on dopaminergie cell line SH-SY5Y in vitro
Renkai LIU ; Li FENG ; Bo XIAO
Journal of Clinical Neurology 1988;0(02):-
Objective To study the damage effects and its mechanism of Helicobacter pylori(HP) on dopaminergie cell line SH-SY5Y in vitro.Methods The cellular survival rate,the level of cellular activated oxygen and the activity of mitochondrion respiratory chain complexes were measured in dopaminergic cell line SH-SY5Y after adding secretory components of HP(HP group),MPP+(PD group) and culture solution(control group).Results The cellular survival rates in the HP group and PD group were decreased,the cellular survival rate of high concentration HP subgroup was dramatically decreased than those in the middle and low concentration subgroups(all P
8.Comparison of sufentanil and fentanyl in total intravenous anesthesia for liver resection: A double blind randomized clinical trial
Feng XIAO ; Jin LI ; Junmei XU
Journal of Chinese Physician 2011;13(7):917-918,922
Objective To compare fentanyl and sufentanil in total intravenous anesthesia for liver resection. Methods 100 patients undergoing liver resection were randomly received either sufentanil (group S, n = 50) anesthesia or fentanyl (group C, n = 50). Hemodynamic variables, time to spontaneous eye opening and extubation were recorded. VAS-scale was used to assess postoperative pain. The incidence of nausea & vomiting, agitation and respiratory depression was recorded and compared. Results Patients in group S had a more stable hemodynamic variables, and the incidence of postoperative pain (VAS: group S 4. 2± 1.1, group C 6. 1 ± 1.2), agitation (group S 2 cases, group C 11 cases) and respiratory depression (group S 1 case, group C 5 cases)was lower. Conclusions Both sufentanil and fentanyl were safe and efficacious in total intravenous anesthesia for liver resection. Compared with fentanyl, Sufentanil had higher hemodynamic stability, and lower incidence of postoperative pain, respiratory depression and agitation.
9.Peri-operative Depression and Anxiety of Coronary Artery Bypass Grafting
Xihui LI ; Zhongjie WANG ; Feng XIAO
Chinese Mental Health Journal 1989;0(03):-
Objective: To investigate the peri-operative incidence of depression and anxiety symptoms of coronary artery bypass grafting (CABG). Methods: 73 patients,who underwent scheduled consecutive CABG between July 2005 and May 2006,were assessed with self-rating depression scale( SDS) and self-rating anxiety scale(SAS)before operation and before leaving hospital.Results: 21 patients (28.8%) had depression and/or anxiety symptoms before CABG, including 11 patients with depression, 7 patients with both depression and anxiety and the other 3 patients had anxiety symptoms. 34 patients (46.6%) had depression and/or anxiety symptoms after CABG, including 18 patients who had depression, 13 patients had both depression and anxiety symptoms and the other 3 patients had anxiety symptoms. The SDS score(47.9?10.0)after surgery was significantly higher than that before surgery(43.7?10) ,t=3.55, P=0.001. The SAS score after surgery (41.6?8.5) was significantly higher than that before surgery (39.3?7.4),t=2.20, P=0.031. Patients with bad mood before operation had lower educational levels (8?3/10?3,t=2.18,P=0.032). Four patients had multiple myocardial infarctions, all of them were in the anxiety-depression group postoperatively (4/34 vs 0/39,P=0.043). There was no difference in post-operative length of hospital stay between the two groups.Conclusions: The peri-operative incidence of depression and anxiety of CABG patients was very high and even higher after surgery. Less education is a risk factor for preoperative depression and anxiety states, multiple infarctions is a risk factor of post operative anxiety and depression.
10.Therapy for malignant glioma
Feng XIAO ; Honglin WANG ; Yunhai LI
Journal of International Oncology 2012;39(4):262-264
Therapies for malignant glioma include surgery,radiotherapy and chemotherapy.In recent years,the overall effective rate of temozolomide is better than other chemotherapy drugs,but partly patients have resistance to temozolomide.Angiogenesis inhibitors show promising activity,but it is expensive.Celecoxib has antiangiogenic activity,which has become a new option.