Objective:To explore the reversal effect of Docetaxel and Capecitabine on rat breast precancerous from angiogenesis and expression of related regulatory factors VEGF mRNA in rats.Methods: 350 SD rats were divided into 7 groups.Model of rats mammary was induced by DMBA and was treated by Docetaxel and Capecitabine for 4 weeks.All of them were killed from 8th week.The microvascular were detected in the specimens, examination of histopathology was performed and the expression of VEGF mRNA was measured by in situ hybridization.Results:The rat mortality and the incidence of precancerous lesions increased obviously, and the incidence of precancerous lesion of the high-dose group and the middle dose reduced.The positive rate of the expression of MVD,TGF-αand VEGF mRNA tend to increase in all the groups.The positive-cell rate of VEGF mRNA of Docetaxel,Capecitabine, Docetaxel and Capecitabine in ADH was lower than in the model group,and the positive-cell rate of VEGF mRNA of Docetaxel and Capecitabine was lower than Capecitabine and Docetaxel separately.Conclusion: Combination of Docetaxel and Capecitabinecan decrease the expression of VEGF mRNA in precancerouslesion of rats mammary.

The in vitro passage number and proliferation of non-immortalized cells are limited, which restrictions cell therapy or in vitro studies. Cells transfected with temperature sensitive simian virus 40 large T antigen (ts-SV40LT) gene could show the greatest proliferation. The cells can be amplified with compensating the lack of limited number of cells under the permissive temperature. Non-permissive temperature can be used in studying the cell therapy or its other physiological characteristics. This research field involves peritoneal stromal cells, satellite cells of urinary tract, oral epithelial cells, adre?nal medullary cells, bone marrow-derived endothelial cells, retinal progenitor cells, mesenchymal stem cells, hematopoietic stem cells, mast cells, podocytes and Kupffer cells. In this study, the current research on Ts-SV40-mediated temperature-sensitive cells was reviewed.

Objective To investigate the adherence mechanism of Candida albicans to host cells in molecular level. Methods and Results Yeast cell wall protein of Candida albicans were extracted, and purified fibronectin (Fn) adhesin was obtained from yeast cell wall extract. Fn adhesin was analyzed by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE), the molecular weights of Fn adhesin were 60kd and 105kd. In order to find out the effect of the protein on adherence to host cells, human buccal epithelial cells and Candida albicans cells were incubated at 37℃ for 2 hours on a rotator, and yeasts adhering to the surfaces of epithelial cells were assayed microscopically. The adherence rate of C.albicans to buccal epithelial cells was 44 7?6 28%, and after treating the epithelial cells with Fn adhesin, the adherence rate reduced to 28 3?6 18%, P

Objective To explore the causes,prevention and treatment of common complications in stone extraction by choledochoscopy after bile duct operation.Methods The clinical data of 165 cases with complications after stone extraction by choledochoscopy in 1379 treated cases during 7 years were analyzed.Results The common unfavorable reactions of nausea,vomiting,abdominal pain and diarrhea occurred in 107 cases,and were alleviated by controlling the amount and rapidity of the infused sterilized water during choledochoscopy.Chills and fever occurred in 25 cases and were controlled by adequate T tube drainage and antibiotics.Bile duct hemorrhage occurred in 11 cases,including automatic hemostasis in 5 cases,hemostasis after infusing thrombin by T tube in 5 cases and hemostasis after infusing thrombin by vein in 1 case.Biliary fistula from sinus tract perforation occurred in 3 cases,and in these,T tube was successtully re-inserted in 1 case and T tube was inserted by reoperation in 2 cases.T-tube tract could not admit the choledochoscope in 19 cases,and were treated by re-choledochoscopy after gradual T-tube dilataton in 12 cases,but the sinus tract close to common bile duct was completely obstructed in 7 cases.Conclusions Choledochoscopic removal of retained stones is a safe procedure but unfavorable reactions and complications are not uncommon.The severe complications,such as bile duct hemorrhage and biliary fistula,should be prevented and appropriately treated.

OBJECTIVE: To investigate the characteristics and regularity of adverse drug reactions (ADR) induced by fluoroquinolones. METHODS: 308 fluoroquinolones-induced ADR cases in 231 literatures were collected from domestic medical journals recorded in CHKD from Jan.1994 to Jun.2009 and analyzed statistically. RESULTS: There was no marked relation between the ADR induced by fluoroquinolones and the gender or age of the patients. 76.62% of ADR cases were mainly caused via intravenous drop infusion. 33.44% of ADR occurred within 2～5 days after medication, leading the first place in term of ADR incidence was levofloxacin (19.81%). ADR mainly appeared as injury of central nervous system (30.43%), followed by lesion of skin and appendants (20.58%). 6 severe ADR induced shock and death. CONCLUSION: Great importance should be attached to monitoring of ADR induced by fluoroquinolones and rational use of drug to guarantee safety and effectiveness of medication.

Objective Study of peripherally inserted central catheter (PICC) for low birth weight infant parenteral nutrition effect. Methods A total of 100 low birth weight infants were selected, and then divided into the study group and the control group with 50 cases in each group according to random number table method. The study group used PICC for intravenous nutrition support treatment, the control group using external support for the treatment of indwelling needle for nutrition week vein. Comparing the two groups of one-time success rate of catheterization, average operation time, indwelling time, incidence of complications and nutritional support before and after the treatment, the children of weight. Results The one-time success rate of catheterization between the two groups had no significant difference (P >0.05). The operation time and the indwelling time in the study group was(30.65±9.87) d, (23.47±6.38) d respectively, while in the control group was (3.26±1.09) d, (4.15±1.52) d respectively, the difference was significant between the two groups (t=19.054 and 20.829, P<0.01). The incidence of complications in the study group was 8.00%(4/50), while in the control group was 24.00%(12/50), the difference was significant between the two groups (χ2=4.76, P<0.05). There was no significant difference about weight between the two groups before and after the nutritional support treatment (P > 0.05). Conclusions Parenteral nutritional support by PICC for low birth weight infant is a more ideal way with longer indwelling time and fewer complications.

Objective To investigate the effect of comfort nursing on dysphoria patients in neurosurgical department.Methods Thirty-six patients with dysphoria in the neurosurgical department were treated with comfort nursing. The degree of dysphoria after implementation of comfort nursing and the incidence of nursing-related adverse events were investigated.Results The degree of dysphoria in the patients after implementation of comfort nursing was lower than that after the implementation(P<0.05).There were 3 cases(8.33%)of nasogastric tube slippage and skin injury,2 cases(5.56%)of urinary catheter slippage and no case of falling out of bed.Conclusions The implementation of comfort nursing can stabilize the mood of patients and comfort the patients. It is helpful for abating the degree of dysphoria of patients,reducing the adverse effects of nursing work and ultimately improving the quality of nursing.

Objective To explore the role of Color Doppler Flowing Imaging(CDFI) in assessing metastatic lymph node for nasopharyngeal carcinoma (NPC). Methods Neck lymph node were detected by CDFI in 206 patients who received the initial course radiotherapy in our hospital. The characteristic of neck node, such as position, figure, number, size, its relation to surrounding soft tissue, the ratio of longitudinal diameter over trnsverses′(L/T) and blood flow resistance index (RI), were recorded detailedly. Fine needle aspiration biopsy was performed on some of patients under the guide of ultrasound. Results The clinical N-stage was changed markedly after CDFI plus biopsy, with up-staging in 25 from N0 to N1 , 6 N0 to N2, 20 N1 to N2, 3 N1 to N3, 4 N2 to N3; and down-staging in 14 from N2 to N1, 7 from N3 to N2. The misdiagnosis rate of node involvement by palpation was 38.3% (79/206). The sizes of lymph node detected by palpation were larger than those by CDFI (P0.6, and the value would reached to 92.9%(182/196) and 95.5%(107/112)when such criteria combined with the diameter and growth behavior of lymph node. Conclusion Color Doppler Flowing Imaging is useful in N-staging for nasopharyngeal carcinoma by providing more reliable evidence.

Objective To explore the mechanism of Shema Zhichuan Liquid (SZL) for asthma. Methods Forty rats were allocated to normal control group (Group A), model group (Group B),western medicine group (Group C) and SZL group (Group D). Radioimmunoassay was used to observe the levels of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) and the ratio of cAMP/cGMP.Results After treatment, cAMP level and cAMP/cGMP ratio were increased and cGMP level decereased in Group C and Group D as compared with Group B (P

Objective To investigate the effects of sevoflurane on inhibition of growth of human lung adenocarcinoma A549 cells by cisplatin and γ ray.Methods The human lung adenocarcinoma cell line A549 was seeded in culture plate.After being cultured for 24 h,the cells were randomly divided into 6 groups (n =6each):control group (group C),sevoflurane group (group S),cisplatin group (group D),cisplatin + sevoflurane group (group DS),γ ray group (group R) and γ ray + sevoflurane group (group RS).A549 cells were exposed to 2.5% sevoflurane for 4 h in group S.Cisplatin with the final concentration of 3 mg/L was added to the culture medium and the cells were then incubated for 4 h in group D.Cisplatin with the final concentration of 3 mg/L was added to the culture medium and the cells were then exposed to 2.5 % sevoflurane for 4 h in group DS.A549 cells were exposed to γ irradiation (2 Gy) for 4 h in group R.A549 cells were exposed to γ irradiation (2Gy) and to 2.5% sevoflurane for 4 h in group RS.The cells were cultured for another 24 h after the end of treatment,the colony formation was detected and the rate of colony formation was calculated by colony formation assay.Proliferation of A549 cells was measured by plate colony formation and MTF assay and the rate of proliferation inhibition was calculated.Cell apoptosis was detected with flow cytometer.The expression of X-linked inhibitor of apoptosis protein (XIAP) and caspase-3 was detected by Western blot.Results Compared with group C,the rate of colony formation was significantly decreased,the rate of proliferation inhibition and percentage of apoptotic cells were increased,XIAP expression was down-regulated and caspase-3 expression was up-regulated in groups S,D,DS,R and RS (P ＜ 0.05).The rate of colony formation was significantly lower,the rate of proliferation inhibition and percentage of apoptotic cells were higher,XIAP expression was lower and caspase-3 expression was higher in group DS than in groups S and D,and in group RS than in groups S and R (P ＜ 0.05).Conclusion Sevoflurane can enhance cisplatin and γ ray-induced inhibition of growth of human lung adenocarcinoma A549 cells,and downregulation of XIAP expression and up-regulation of caspase-3 expression may be involved in the mechanism.