Objective To study the clinical therapeutic effect of acupuncture in the treatment of depressive neurosis.Methods The 60 selected patients of depressive neurosis were randomized into treatment group(acupuncture regulating the liver group)and con- trol group(near-by sham-point acupuncture group),with 30 in each.The scores of Symptom Checklist 90(SCL-90),Self-rating De- pression Scale(SDS),and Hamilton Depression Scale(HAMD),and the total effective rate after treatment were observed.Results The total effective rate of the treatment group and the control group was 92.6% and 56.0% respectively,and the difference was sig- nificant(P

Objective To investigate the expression of paired box2(Pax2),proliferation cell nuclear antigen(PCNA) and cell apoptosis in steroid-sensitive and steroid-resistant groups with primary nephrotic syndrome(PNS) and to find out the action of Pax2 expression in PNS with steroid-resistance.Method The expressions of Pax2,PCNA were evaluated by immunohistochemistry and cell apoptosis by fluorescence micoscope.Results Pax2 expression in renal tubule had a positive correlation with PCNA expression in steroid-sensitive group.In steroid-resistant group,Pax2 expression had no correlation with PCNA.Pax2 had a negative correlation with cell apoptosis.Conclusions Pax2 proper expression facilitate PCNA expression and repair tubulointerstitial lesions in steroid-sensitive group.Renal tubular epithelial cell proliferation coordinated with cell apoptosis.Pax2 overexpression in steroid-resistant group lead to the decrease of cell proliferation and cell apoptosis and lead to the severe tubule lesions,which made to glucocorticoid resistance.

BACKGROUND: Changes of elastic fibers in middle cerebral artery(MCA)is close related withthe aged cerebrovascular disease.OBJECTIVE: To observe the changes of elastic fibers of MCA in different aging rats.DESIGN: A descriptive and controlled study based on experimental animals.SETTING: Department of anatomy and central laboratory in a university.MATERIALS: Totally 36 healthy Wistar rats with either gender, weighing 200 - 280 g, were selected from the Animal Institute of the third medical military university of Chongqing[certification SCXX (army) 2002-007].INTERVENTIONS: Changes of elastic fibers of MCA of different aging rats were observed with light microscope, transmission electron microscope and image analysis system. MAIN OUTCOME MEASURES: ①) Major outcome: changes of elastic lamella in MCA of different aging rats; ②) Secondary outcome: ultramicrostructural changes of internal lamella under the transmission electron microscope. RESULTS: With the increase of age, the folded extent and quantity of internal elastic lamella were decreased, and the content of elastic fibers were also decreased significantly( P ＜ 0.01 ). However, the ratio of collagen fibers to elastic fibers was increased significantly( P ＜ 0.01 ) . In the aging group above 24 months, the internal elastic lamina thinned, delaminated and disrupted, and the lipid deposited in it. Endothelial cells and smooth muscle cells passed through the internal elastic lamina. CONCLUSION: Changes of elastic fibers may be related with the increased susceptibility to the cerebrovascular disease in aged people.

Objective:To construct an eukaryotic expression vector of enhanced green fluorescence protein(EGFP) gene driven by telomerase catalytic subunit(hTERT) gene promoter and observe the specific expression of EGFP in lung cancer cell lines.Methods:The 1100bp promoter fragment was obtained by enzyme digestion from a recombinant plasmid of pGL3-hTERTp containing the hTERT promoter.The hTERT promoter was then subcloned into the upstream of the report gene EGFP of pEGFP-1 without promoter.The expression vector pEGFP-hTERTp was successfully constructed.The vector pEGFP-N1 containing cytomegalovirus(CMV) promoter was used as a positive control.The vector pEGFP-1 without promoter was used as a negative control.The vectors were transfected into human lung cancer cell lines 95D,NCI-H446,A2,A549,LTEP-a-2,YTMLC and normal MRC-5 through lipofectamine respectively.EGFP expression was detected under the fluorescence microscope.Results:pEGFP-hTERTp was confirmed by enzyme digestion with correct result.That the EGFP expression was detected in all of eight lung cancer cells transfected with pEGFP-hTERTp,but not in MRC cells.By contrast,high intensity EGFP expression was observed in both lung tumor cells and normal cells,which were transfected with pEGFP-N1.Conclusion:The EGFP controlled by hTERT promoter can be expressed specifically in lung cancer cell lines.hTERT promoter may be used as an excellent regulation element in tumor-targeting gene therapy.

Objective To investigate the CT features of pulmonary sarcoidosis.Methods Ninety patients with histologically proved pulmonary sarcoidosis were retrospectively studied by using CT scans and clinical recording.Results The main CT findings of pulmonary sarcoidosis were nodules which were seen in 69 cases(76.7%),and the nodules mostly distributed around the bronchovascular bundle(n=37, 41.1%).Other abnormalities included consolidation(n=31,34.4%),ground-grass(n=39,43.3 %), thickening of bronchovascular bundle(n=30,33.3%),interlobular septal lines(n=58,64.4%), fibrosis(n=17,18.9%)including bronchial distortion(n=8,8.9%),linear shadow(n=5,5.6%), and honeycombing shadow(n=4,4.4%),air-trapping(n=3,5.3%),bronchial straitness(n=8, 8.9%),pleural thickening(n=42,46.7%),and hilar and mediastinal adenopathy(n=76,84.4%). Two or more abnormal findings co-existed in 83 cases.The pulmonary lesions co-existed with hilar and mediastinal adenopathy in 76 cases.The nodules(n=25),consolidation(n=9),ground-grass(n=11), thickening of bronehovascular bundle(n=10)were improved after therapy.Ten cases of the interlobular septal(10/22),0 of bronchial distortion(0/4),1 case of diffuse linear(1/3),and 0 case of honeycombing(0/2)were improved.Conclusion CT manifestations of pulmonary sarcoidosis are varied, but has some specific radiographic features.A correct diagnosis can be made.combined with hilar and mediastinal adenopathy.

Acute Kidney Injury ; chemically induced ; enzymology ; Animals ; Disease Models, Animal ; Gentamicins ; Peptidyl-Dipeptidase A ; metabolism ; Rats

The computerized imitating system constructed by the Second Affiliated Hospital of Guangzhou Medical University contains four blocks:administration of student infomation,administration of question bank,on-line tests and administration of score inquiry.It's designed to imitate typical pediatric cases,so that the medical students may put themselves into the practical clinical scenario and solve the challenges step by step in one-direction procedure.Teaching with computerized clinical scenario imitating patients can improve students' test resuhs and activate students' learning enthusiasm significantly.It not only helps to solve the contradiction between increasing number of medical students and clinical typical teaching case shortage but also improves the clinical thinking ability of the medical students.This system can also be used as a test bank for pediatric technical skills examination.

Objective To evaluate the efficacy of intermittent pneumatic compression or sequential compression device in prevention of deep venous thrombosis in long-term bedridden patients.Methods We searched Pubmed (1996～),The Cochrane Library (1997～),CLNAHL (1980～),CNKI (1994～),EM-BASE,Science Direct,Oxford Journals,Wanfang Data(1998 ～),and randomized controlled trials (RCTs) in which IPC or SCD was used as an intervention to prevent DVT,and all the trials were published in English or Chinese.The methodological quality of the included studies was assessed according to the standard of Cochrane systematic review.RevMan 5.0 software was used for Meta-analysis.Results Seven RCTs were included.The results of Meta-analysis showed that the incidence of DVT in the IPC or SCD group was lower than that in the control group.Conclusions IPC or SCD shows an effective tendency in DVT prevention,but because of the low quality and the small sample of the included studies,this conclusion needs to be verified by protocols of more samples and higher quality.

Animals ; Calcitriol ; pharmacology ; Diabetes Mellitus, Experimental ; complications ; Diabetes Mellitus, Type 2 ; complications ; Liver ; drug effects ; Liver Diseases ; complications ; drug therapy ; Male ; Rats ; Rats, Sprague-Dawley

In order to investigate the expression of nerve growth factor (NGF) and hypoxia inducible factor-1α (HIF-1α) and its correlation with angiogenesis in non-small cell lung cancer (NSCLC), paraffin-embedded tissue blocks from 20 patients with NSCLC were examined. Twenty corresponding para-cancerous lung tissue specimens were obtained to serve as a control. The expression of NGF, HIF-1α, and vascular endothelial growth factor (VEGF) in the NSCLC tissues was detected by using immunohistochemistry. The microvascular density (MVD) was determined by CD31 staining. The results showed that the expression levels of NGF, HIF-1α and VEGF in the NSCLC tissues were remarkably higher than those in the para-cancerous lung tissues (P<0.05). There was significant difference in the MVD between the NSCLC tissues (9.19±1.43) and para-cancerous lung tissues (2.23±1.19) (P<0.05). There were positive correlations between NGF and VEGF, between HIF-1α and VEGF, and between NGF and HIF-1α in NSCLC tissues, with the spearman correlation coefficient being 0.588, 0.519 and 0.588, respectively. In NSCLC tissues, the MVD had a positive correlation with the three factors (P<0.05). Theses results suggest that NGF and HIF-1α are synergically involved in the angiogenesis of NSCLC.