With the child behavioral questionnaire developed by Rutter,39 Chinesechildren(group 1-C),27 Japanese children(group 1-J)and 87 South Korean children(group1-S)were identfied as with behavioral problems,together with matched norman children of27 from China(group 2-C),30 from Japan(group 2-J)and 26 from South Korea(group 2-S)respectively,to engage in this EEG study.In a comparison between behavioral problemschildren and normal ones in each country no significant difference was found in EEG data.However,in the comparison among group 1s,group 2s and ADD-H children(group 3s:41from China as group 3-C,21 from Japan as group 3-J and,29 from South Korea as group3-S)diagnosed clinically with DSM-Ⅲ,significant difference among groups was found inEEG analyses in each country respectively.Some index of slow wave of group 3s'EEG weremuch higher than that of normal ones(group 2s).EEG data from group 3-C and gruop 3-Jshowed that the frequency-peak moved to slow frequency area.This indicates the develop-ment of ADD-H may associate with some functional abnormalities of nervious system.

Objective To compare the curative effects between one‐stage anterior debridement bone graft fusion and posteri‐or fixation fusion combined with anterior debridement bone graft fusion in the treatment of multiple lower thoracic spinal tuberculo‐sis .Methods A total of 62 patients with multiple lower thoracic spinal tuberculosis in our hospital from March 2002 to March 2010 were treated by the anterior debridement bone graft fusion ,including 32 cases of anterior internal fixation by one screw‐rod system (group A) and 30 cases of posterior internal fixation by two nail‐stick systems(group B) .The cure rate ,operation time ,bleeding volume ,the Cobb′s angle and recovery situation of spinal cord injury were compared between the two groups .Results All patients were followed up for 24-36 months (average 28 months) and showed successful bone graft fusion .In the Frankel classification e‐valuation at postoperative 12 months ,the improvement rate of spinal cord injury was 76 .92% (10/13) in the group A and 81 .82%(9/11) in the group B ,showing no statistically significant difference (χ2 =0 .087 ,P>0 .05) .The total cure rate was 84 .38% (27/32) in the group A and 85 .48% (26/30) in the group B ,showing no statistically significant difference (χ2 =0 .066 ,P>0 .05) .The Cobb′s angles before operation ,immediately after operation and at the last follow‐up were (28 .16 ± 4 .16)° ,(5 .03 ± 3 .24)° and (8 .81 ± 2 .44)° in the group A and (26 .83 ± 5 .41)° ,(5 .50 ± 3 .03)° and(8 .06 ± 2 .45)° in the group B ,showing no statistically sig‐nificant difference (t=1 .038 ,t=0 .588 ,t=1 .200 ,all P>0 .05) .The operation time was (171 .31 ± 12 .84)min in the group A and (219 .23 ± 21 .44)min in the group B ,showing statistically significant difference (t=10 .754 ,P<0 .05) .The bleeding volume was (341 .25 ± 76 .10)mL in the group A and (440 .67 ± 67 .16)mL in the group B ,showing statistically significant difference (t=5 .439 ,P<0 .05) .Conclusion One‐stage anterior debridement ,and anterior or posterior internal fixation for treating multiple lower thoracic spinal tuberculosis can obtain the better curative effect ,but selecting case is very important .

Objective To illustrate the relationship between the temporary alteration of renal functions of rats with obstructive jaundice due to ischemia reperfusion injury(RI) and lipid peroxidation and the expression of heat shock protein 70 in rat kidney. Methods Wistar rats were divided into 4 groups of sham operation group(S group), sham operation and renal RI group(SRI group), common bile duct ligation group(J group), common bile duct ligation and renal RI group(JRI group). One week after bile duct ligation, rat bilateral renal arteries were transiently occluded for 10 minutes. The variations of renal function were observed at different time phases after renal reperfusion. Simultaneously, the expression of heat shock protein 70 in kidney was evaluated by immunohistochemistry. Results In JRI group, endogenous creatinine clearance rate(Ccr) decreased progressively along with the prolongation of the duration of reperfusion. In J and JRI groups, the level of malondealdehyde(MDA) in renal tissue increased but superoxide dismutase(SOD) decreased. In JRI group, the expression of heat shock protein 70 reached its peak at the 4th hour after reperfusion and began to decrease at the 12 th hour and became lowest at the 24 th hour. No expression of HSP70 was found in other groups. Conclusion The sensitivity of rat kidneys with obstructive jaundice to ischemia reperfusion injury is significantly elevated. Ischemia reperfusion injury, as well as lipid oxidative stress, may be involved in acute renal failure(ARF) after obstructive jaundice surgery. The expression of heat shock protein 70 is a protective response to RI.

Gastrointestinal stromal tumor (GISTs) are a new recognized tumor entity. The incidence increases with time for the greater awareness of GISTs. Latest reports of the epidemiology of GISTs have been collected and sorted. Besides, it is still a controversy on the management of GISTs. While surgical en-bloc resection is the treatment of choice, imatinib is still optimal for patients with recurrent or metastatic GISTs. Preliminary promising effects have been showed on neo-adjuvant and post-operational adjuvant therapies. Imatinib-resistant GISTs become common and more targeted medication have been investigated and tested.
Gastrointestinal Stromal Tumors ; epidemiology ; therapy ; Humans ; Incidence

Germinating conditions of Glycyrrhiza uralensis Fisch. including temperature, water, pH and salt were studied. The results showed that tne suitable germinating conditions were:temperature from 15～30℃, soil water content above 7.5 per cent, pH range 7 to 9, salt (sodium chloride) helow 0.05 per cent.

Objective To study the feasibility of transplanting autologous venous endothelial cells, as the liner, to the allogenic vein and to investigate the patency rate after such transplantation. Methods Autologous endothelial cells were gained after the administration of 0.2% collagenase and the centrifugalization of the enzyme liquid. The cells were not cultivated in a 60 ml plastic culture until the presence of the second generation. The cultivated cells were confirmed as endothelial cells by factor Ⅷ related antigen. The multiplied cells were lined in vitro onto the luminal surface of allogenic vein that was disposed by freeze-drying and radiation. The orthotopic transplantation of autologous venous endothelial cells was performed after the 9-day incubation. Results (9.47?0.35)?10~6 endothelial cells were obtained after the cultivation. Three hours after cell seeding, the luminal surface of allogenic vein was covered with vast endothelial cells but still had not formed an intact endomembrane. On day 9, the luminal surface was covered with a continuous endothelial monolayer and the arrangement and the shape of the cells all showed the perfect condition of endothelial cells. Eight weeks later, all the transplanted veins kept unobstructed. Conclusion The approach of lining allogenic vein with autologous endothelial cells in vitro may keep the vein unobstructed in the long term.

Objective To investigate whether p53 expression is involved in human telomerase reverse trans-criptase (hTERT) regulation. Methods HepG2 cells and pPUR/U6/hTERT HepG2 cells were treated with the p53 antisense oligonucleotide respectively and p53 expression plasmid were introduced to HepG2 cells. The decreased or increased p53 level and the hTERT expression levels were analyzed by Western blotting. Results Down-regulation of p53 expression had no obvious effect on hTERT expression, but over-expression of p53 could significantly repress hTERT level. Conclusion p53 interacts with hTERT and inhibits hTERT expression in HepG2 cells.

OBJECTIVE: To study the equilibrium solubility of aesculin and its apparent oil/water partition coefficient,and to provide basis for absorption mechanism study.METHODS: Equilibrium solubility of aesculin at the pH of 1.2～8.0 was determined by saturation method.The apparent oil/water partition coefficients of aesculin were determined by shaking flask method.RESULTS: The equilibrium solubility of aesculin at the pH of 1.2～6.8 was fluctuated slightly;it increased rapidly at the pH of 7.4;the maximum equilibrium solubility of aesculin was obtained at the pH of 8.0(10.58 g?L-1).The oil/water partition coefficient of aesculin changed slowly at the pH of 1.2～6.0;it decreased significantly at the pH of 6.0;the minimum oil/water partition coefficient was obtained at the pH of 8.0(0.03).CONCLUSIONS: The equilibrium solubility of aesculin and its apparent oil/water partition coefficient are associated with the pH of medium.The reason that aesculin has no effect on uric acid after oral administration is relevant to poor gastrointestinal tract absorption ability.

OBJECTIVE:To establish a RP-HPLC method for the determination of the concentration of moxifloxacin in human serum.METHODS:The separation of sample was performed on Gemini C18 column with a fixed sample injection volume of 20?L.The mobile phase was methanol-water-triethylamine(112.5∶208.9∶0.06) at a flow rate of 1mL?min-1.The UV detective wavelength was set at 289nm;the column temperature was 25℃ and the sensitivity was 0.01AUFS.RESULTS:In the range of 0.312 5～10?g?mL-1(r=0.999 8),moxifloxacin showed a good linear relation in HPLC.The recoveries of moxifloxacin at three concentrations(10,2.5,0.625?g?mL-1) were 99.46%,103.12%,and 96.14%,respectively,with intra-day RSD at 3.27%,3.35%,0.92%,respectively and inter-day RSD at 7.19%,6.25%,6.68%,respectively.CONCLUSION:This method is simple,rapid,accurate and sensitive,and it can be used for the concentration determination and the pharmacokinetic study of moxifloxacin.