1.An imaging study on hippocampal vein structure and cognitive function in Alzheimer disease patients
Min XU ; Dongqing WANG ; De HUAI
Chinese Journal of Behavioral Medicine and Brain Science 2013;(2):116-119
Objective To research the Alzheimer disease(AD) patients' hippocampal structure and cognitive function with the susceptibility weighted imaging (SWI) and morphological measurement,and explore the changing regularity and correlation.Methods Sixty patients (divided equally into mild,moderate and major group as the condition of the severity of the AD) and 20 healthy control groups were scanned with SWI and T1MR,then the differences between AD and healthy controls were analyzed.Results The hippocampal volumes of AD patients were smaller than that of control group.The biggest variability occured in the major group(the left was Dunnett-t =-7.03,P < 0.01 ;the right was Dunnett-t =-7.52,P < 0.01),the moderate group was next(the left was Dunnett-t =-6.71,P < 0.01 ; the right was Dunnett-t =-6.62,P < 0.01) ;and the least variability occurred in the mild group.They did not achieve statistical significance (the left was Dunnett-t =-0.86,P> 0.05 ;the right was Dunnett-t =-0.68,P > 0.05).The hippocampus vein' s length,diameter had reduced significantly in the mild group(Dunnett-t were-5.62,-7.02,P< 0.001),but the number of the branches was slightly increased,which was close to the statistical significance.(Dunnett-t =1.86,P > 0.05).With the progress of the AD,all of the hippocampus vein's length,diameter,and branches were reduced significantly(the Dunnett-t of the moderate were-10.10,-11.40,-2.83,P<0.05;the Dunnett-tofthe major were-11.69,-14.68,-5.74,P< 0.001).AD patients blood vessel diameter,length and cognitive have correlation(r =-0.034 ~-0.517,P <0.05,P < 0.01).Conclusion The hippocampus vein and cognitive function function change in AD patients happened in the mild stages of disease.An important supplement to the MRI conventional sequences.
2.Experimental Study of Human Esophageal Carcinoma Cells Eca 109 Apoptosis Induced by Sodium Cantharidinate in Vitro
Feng LIANG ; Mingyan WANG ; Dongqing XU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(03):-
Objective To study sodium cantharidinate induced apoptosis of human esophageal carcinoma Eca109 in vitro. Methods The change of human esophageal carcinoma Eca109 treated with sodium cantharidinate were analyzed by MTT and FCM assay. Results Human esophageal carcinoma Eca109 were treated with sodium cantharidinate for 24 h,the cell proliferation was obviously inhibited(P
3.Multiple endocrine neoplasia type 2b(report of a case)
Dongliang YAN ; Chunxiao XU ; Dongqing ZHANG
Chinese Journal of Urology 2001;0(11):-
Objective To study the diagnosis and trea tm ent of multiple endocrine neoplasia type 2b. Methods On e case of MEN2b was reported.The clinical features,the diagnosis and treatment o f MEN2b were reviewed and presented. Results The diagno sis was established on B-ultrasonography and CT scanning,and the patient was cu red by operation. Conclusions MEN2b has been rare.Endoc rine check up,imaging procedures,family investigation and DNA analysis are very important to early diagnosis.Surgical removal of the tumors is effective.
4.Experimented gene therapy for prostate cancer with HSV-TK/GCV system
Dongqing ZHANG ; Chunxiao XU ; Daoxin MA
China Oncology 2000;0(06):-
Purpose: To investigate the effect of HSV-TK/GCV system on human prostate cancer. Methods: MTTassay, flow cytometry( FCM), optical and electron microscopy were used to determine the sensitivity of GCV on prostate cancer cell( PC-3m) after being tranfected with HSV-TK gene. Results: It was found that GCV had significant cytotoxic activity on HSV-TK gene-transduced prostate cancer cells, but little effect on the non-transduced cells. Conclusions: The experiment indicates that HSV-TK/GCV system has significant antitumor activities on the TK gene-transduced prostate cancer cells in vitro.
5.Primary extragonadal seminoma(report of five cases and review of literature)
Dongqing ZHANG ; Chunxiao XU ; Al ET ;
China Oncology 2001;0(02):-
Purpose:To improve the knowledge of primary extragonadal seminoma.Methods:Five cases proved by histopathology were reported in this article, every patient received surgical operation plus subsequent chemotherapy or radiotherapy . Results:all of them are alive now. the histogenesis, clinical features, principle of treatment of primary extragonadal seminoma are discussed with review of literature.Conclusions:Primary extragonadal seminoma is rare, histopathology is very important for diagnosis and selection of therapy.
6.Effects of Recipes for Tonifying and Supplementing on Apoptosis of Splenocytes in Mice of Injected by Cyclophosphamide
Dongqing XU ; Mingyan WANG ; Fengming ZHAO ;
Journal of Traditional Chinese Medicine 1993;0(02):-
Objective:To study effects of 5 recipes for tonifing and supplementing on apoptosis and splenocytes in mice treated with cyclophosphamide.Methods:Apoptosis and cellular cycles of splenocytes were detected by flowcytometric analysis.Results:Sijunzi Decoction,Liuwei Dihuang Pill,Shengmai Powder,Jingui Shenqi Pill could antagonize the decline of proliferation induced by cyclophosphamide,and Sijunzi Decoction and Liuwei Dihuang Pill could resist the apoptosis of splenocytes caused by cyclophosphamide;and the recipes all could inhibit atrophy of the spleen induced by cyclophosphamide Conclusion:The 5 recipes for tonifying and supplementing all can improve the injury of the spleen induced by cyclopbosphamide in varying degrees,Sijunzi Decoction and Liuwei Dihuang Pill being the best.
7.Influence of the serum of Radix Ophiopogonis on the apoptosis related gene expression and intracellular Ca~(2+) in vascular endothelial cells treated with LPS
Xu ZHANG ; Chaoying ZHANG ; Wen WANG ; Dongqing XU ; Ji YANG
Chinese Journal of Pathophysiology 1989;0(06):-
AIM: To explore the molecular mechanism of Radix Ophioponis against vascular endothelial cell (VEC) apoptosis induced by LPS. METHODS: The apoptosis of human umbilical vascular endothelial cells(HUVEC) was induced by lipopolysaccharide(LPS). The influence of Radix Ophiopogonis on the expression of bcl-2 and intracellular Ca 2+ was detected by flow cytometry and laser confocal microscope. RESULTS: The serum containing Radix Ophiopogonis suppressed the increase in bcl-2 expression and overloading of Ca 2+ induced by LPS in HUVEC.CONCLUSION: The mechanism of Radix Ophiopogonis against HUVEC apotosis may be related with its regulatory effect on bcl-2 expression and remission of Ca 2+ overloading.
8.Detection of soluble vascular cell adhesion molecule-1 and soluble intercellular adhesion molecule-1 in the sera of patients with systemic lupus erythematosus
Weiheng ZHOU ; Dongqing CHENG ; Weisong HONG ; Jin XU ; Aie XU
Chinese Journal of Rheumatology 2003;0(09):-
Objective To detect the levels of soluble vascular cell adhesion molecule-1 (sVCAM-1) and soluble intercellular adhesion molecule-l (sICAM-1) in the sera of patients with systemic lupus erythe-matosus (SLE) and their clinical significance was analysed. Methods Serum level of sVCAM-1 and sICAM-1 of 30 controls and 60 SLE patients were measured by enzyme linked immunosorbent assay (ELISA). Results 1 Serum levels of sVCAM-1 were significantly increasd in patients with SLE compared with those in normal controls (P
9.Serum Soluble Adhesion Molecule and Its Relation with the Disease Activity in Systemic Lupus Erythematosus
Weiheng ZHOU ; Dongqing CHENG ; Weisong HONG ; Jin XU ; Aie XU
Chinese Journal of Dermatology 1995;0(01):-
Objective To investigate the relationship between the serum level of soluble vascular cell adhesion molecule-1(sVCAM-1) and soluble intercellular adhesion molecule-1(sICAM-1) and the disease activity in systemic lupus erythematosus(SLE). Methods The serum concentrations of sVCAM-1 and sICAM-1 were measured by ELISA in 60 SLE patients and age- and sex-matched normal controls. Results ① Serum levels of sVCAM-1 and sICAM-1 were significantly increased in SLE patients compared with those in normal controls (P
10.The antidepressant and neuroprotective effect mediated by TREK-1 potassium channel
Hua XU ; Dongqing YE ; Xiaoli LI ; Zhijun ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(12):1144-1146
Objective Recently, the role of TREK-1 in anti-depression and neuroprotection was demonstrated definitely.In this paper,a systematic review about the functional structure of TREK-1 as well as the underlying mechanisms which involved in depression resistance and nerve protection was made for purpose of providing new ideas for the treatment of clinical diseases.Methods The electronic search of Medline/PubMed,CNKI,CBM and Wanfang Data were performed to collect the introduction of TREK-1 and the studies of depression and nerve protection in which TREK-1 participated from inception of each database to October 2015 ,besides the relevant references of the included studies were also retrieved.Results 30 studies were included in this paper.14 studies were about the interpretation of TREK-1's structure, distribution and the regulatory factors, and the number of researches regarding the involvement of TREK-1 in anti-depression and neuroprotection was 13 and 7 respectively.Based on these studies,it was easily to conclude that inhibition or blocking of TREK-1 channels can produce obvious antidepressant effect, however, activation of TREK-1 channels will induce the dilation of local cerebral vascular and silence hyperactive neurons.Conclusion Some achievements about the antidepressant and neuroprotective effect of TREK-1 channels in vivo have been made gratifyingly,thus future research should focus on exploring the best TREK-lactivation ratio in different brain regions to gain the best balance between anti-depression and neuroprotection.