AIM: To investigate the angiogenesis in the process of sarcoma 180 (S_(180)) tumor transplantation and changes of regulator factors, and explore the possible mechanism. METHODS: The S_(180) transplanted tumor in the Km mouse was used to detect the tumor angiogenesis by immunohistochemical examination of FⅧ. The levels of VEGF (V) and endostatin (E) in serum and the homogenate of tumor tissue were measured by ELISA and EIA, and the correlation between tumor weight and microvessel count (MVC) and morphology in tumor was also analyzed by multiple ANNOVA method. RESULTS: MVC, the relative count of total vessels and relative total vessel area increased with the development of transplanted S_ 180 . VEGF level in tumor tissue were higher at the 10th and 15th day than the 5th day after tumor transplantation. Endostatin in the tumor tissue and serum both reached the highest level at the 15th day, V/E ratio did not changed in this process. Furthermore, MVC, average vessel area and relative total area had a significant correlation with tumor weight. CONCLUSION: MVC increases in the development of S_(180) transplantation tumor and is related with the tumor weight; the positive regulator of angiogenesis in the tumor tissue is up-regulated during tumor growth, and the regulators in the tumor tissue maintains a relative balance.

Since the HLA system is one of the most complex human genetic polym- orphisms,its application in forensic medicine included disputed paternity and criminal identification,have been fairly recognized. The present paper reported the results of our study about the HLA typing in human blood stain,serum and saliva,it was concluded that:(1).The existed strong anti-complementary activity in human blood stain when the amount of complement used in microlym-phocytotoxicity inhibition test(MLIT) was incresed to 10?l,it was found that the results of HLA-All,-B 5 typing in bloodstains were all correct,and the detectable period was at least 90 days; (2).The soluble HLA-A antigens in human serum could reliable detected with MLIT;(3).The soluble HLA-A antigens were also present in the human siliva.

Objective: To study the preparation and quality control methods of Yuanhu Zhitong HBS Tablet. Methods: the suitable excipients and formulation process of Yuanhu Zhitong HBS Tablet is sieved by means of testing quantity of tetrahydropalmatine through TLC UV. Results: the beginning floating time of HBS Tablet is 3min; relative dissolution of main component tetrahydropalmatine is 32% within 3hr, 86% within 9 hr. Conclusions: the study is found to be effective in the process of Yuanhu Zhitong HBS Tablet.

Denture stomatitis is one of the most common problems appearing after patients wearing removable dentures,which appears more frequently in maxillary complete dentures. The clinical symptom is that the mucosa of the stress-bearing area of denture base broadly gets red,and forms the boundary diffusion erythema. Sometimes when the surface of denture base and the mucosa of stress-bearing area are not close well,some granules will be found at the surface of the erythema. With the world's gradually stepping into the aging society,the number of people who have to wear removable dentures is increasing,because dentition defect or edentulous affected by any reasons. As a result,how to solve the secondary disease such as denture stomatitis is becoming a hot spot which more and more researchers concern about. This paper summaries the development of prevention of denture stomatitis in prosthetic area via selection of base materials,manufacture of denture,sterilization of denture,and improvement of base.

Objective To compare the result of T2/T3 transitional cell carcinoma (TCC) of the urinary bladder after segmental cystectomy, treated by postoperative radiation plus intravesical chemotherapy and postoperative intravesical chemotherapy alone.Methods From 1985 to Dec.1995 patients with T2/T3 TCC bladder cancer who had been treated by segmental cystectomy were eligible for this retrospective analysis. Fifty-eight patients received postoperative radiotherapy plus intravesical chemotherapy (RT+IVC) and 35 patients were given postoperative intravesical chemotherapy (IVC) with thio-TEPA or calmette-Gue'rin bacilli (BCG). For radiation,8 or 18 ?MV X-ray was given with total dose of 50-60 ?Gy. Vesicoclysis was performed on 50-60 mg thio-TEPA twice per week and 0.5 mg BCG per week.Results The 3-year local control rates of RT+IVC and IVC groups were 68.6% and 48.2% showing a difference statistically significant (? 2=4.08,P=0.044).The 3- and 5-year survival rates of RT+IVC and IVC groups were 70.7%,49.5% and 59.9%,35.7% ,showing no significant difference (? 2=1.77,P=0.184). Among the 5 year survivors of the RT+IVC patients, 78.6% had their bladder preserved. Though untoward radiation reactions were severer, they were tolerated well.Conclusions Combined radiation therapy plus intravesical chemotherapy is indicated for T2/T3 bladder cancer after segmental cystectomy. Multimodality therapy is more favored to improve both the local control and the possibility of preserving the bladder.

Objective To elucidate the role of insulin receptor and its ?-subunit autophosphorylation in evoking insulin resistance in non-obese type 2 diabetes. Methods 14 patients with non-obese type 2 diabetes and 12 healthy subjects were enrolled in this study. Insulin receptor numbers and its insulin affinity in erythrocytes were measured using radio-labelled ligand binding assay described by Comi et al. Insulin receptor autophosphorylation in erythrocytes membrane was initiated by adding insulin and ?- 32 P ATP. Then the membrane proteins were resolved on 7 5% SDS-PAGE and subjected to autoradiography. Results The numbers of high and low affinity receptors in erythrocytes of type 2 diabetes were 21?13 and 955?427 per cell respectively, and they showed no significant difference as compared with control. The high affinity constant(K 1) and low affinity constant(K 2) of insulin receptors in erythrocytes of type 2 diabetes were (1 70?0 93)?10 -9 LM -1 and (1 44?0 86)?10 -7 LM -1 respectively, also displaying no significant difference in comparison with the control. Insulin-induced receptor ? subunit autophosphorylation was 8 02?5 6△A/mg protein in type 2 diabetes, which was lower than that (28 38?15 24)△A/mg protein) in control(P

Objective To study the effect of labeling esophageal carcinoma with sliver clips on two sides by esophagoscopy in mapping the target for conformal radiotherapy (CRT). Methods Eighty patients with esophageal carcinoma (28 patients in early stage, 52 patients in late stage), who were eligible for CRT, were collected and the tumor volume was detected by three methods: CT (A),CT combined with X-ray (B) and CT combined with sliver clip labeling by esophagoscopy (C). The differences of the tumor length and position in head-foot site (Y-axsis) among three methods were compared. Results The comparison of average length of tumor in early stage patients showed significant difference among three methods in all types of tumor (F= 4.07 ～ 7.43, P＜0.05 ) except papillary type (F= 1. 71, P＞0. 05). There was difference (ranged from 0. 5 cm to 2. 0 cm) in detection of position in head-foot site between A and B methods and C method. Significant difference was found in determining the displacement on head-foot site among three methods (F = 34. 36 ～193.50,P ＜0.01). The comparison of average length of tumor in middle or terminal stage patients showed significant difference among three methods in all types of tumor (F=4. 07～30.10 ,P＜0.05) except mushroom type (F = 2.44, P＞ 0. 05). Significant difference was found in determining the displacement on head-foot site among three methods (F= 12.00 ～ 21.16, P ＜ 0. 01 ). Conclusion These findings indicate that C method is more sensitive and correct in mapping the target for CRT in comparison with other two methods.

Objective To explore the effect of Eight-Section Brocadeon improving extrapulmonary performance and lung function in elderly stable chronic obstructive pulmonary disease (COPD) patients. Methods A total of 120 elderly stable COPD patients were divided into experimental group and control group by random digits table method with 60 cases each. The experimental group received Eight-Section Brocade and the control group took a walk both based on the routine health education. The World Health Organization Quality of Life (WHOQOL)-BREF, 6 min walking test and lung function were conducted before and after intervention 12, 24 and 36 weeks. Results After intervention, the score of each field of WHOQOL-BREF were higher than those before intervention, comparison of two groups of physiological fields Ftime=57.112, Fgroup=10.510, Finteractive=13.653, all P<0.01; psychological field Ftime=240.209, Fgroup=6.201, Finteractive=6.902, all P<0.05;field of social relations Ftime=34.957, Fgroup=7.265, Finteractive=11.554, all P<0.01; environmentfield Ftime=66.431, Fgroup=8.197, Finteractive=18.413, all P<0.01, and there were significant differences in time, groups and interactive. Comparison of two groups of the result of 6 min walking test after intervention, Ftime=327.697, Fgroup=37.181, Finteractive=61.420, all P<0.01. Comparison of two groups of the result of lung function indexforced expiratory volume in one second, Fgroup=5.083, P<0.05, there was significant difference;after intervention the index of Forced expiratory volume in 1 second take up of the expected value, Fgroup=4.141, P<0.05, there was significant difference. Conclusions Eight-Section Brocade can effectively improve the elderly stable COPD patients with exercise endurance and quality of life, improve the extrapulmonary performance, delay the progressive decline of lung function.

Objective To investigate the optimal time of termination of pregnancy for patients with hemolysis elevated liver enzymes and low platelet (HELLP) syndrome Methods 57 patients with HELLP syndrome admitted from October 1992 to September 2001 were enrolled According to the length from the time diagnoses confirmed to the time of delivery,patients were divided into 3 groups; group Ⅰ,within 24 hours, group Ⅱ,24 to 48 hours and group Ⅲ,over 48 hours Complications,maternal and perinatal mortality were analyzed retrospectively between different groups Results Maternal and perinatal mortality were 7% and 11% in group Ⅰ, 16% and 21% in group Ⅱ, 64% and 73% in group Ⅲ with significant differences between group Ⅲ and group Ⅰ or group Ⅲ and group Ⅱ ( P

Objectvies:To investigate the role of vascular endothelial growth factor(VEGF) in the pathogenesis of endometriosis(EMs). Methods:A total of 70 specimens of endometriosis and 30 specimens of the normal controls were evaluated by immunohistologically techique with polyclonal antibody against VEGF. Results:The expression levels of VEGF in endometriotic tissues was higher than that in the normal endometrium( P