Objective To explore the expression of Aurora-A in breast carcinoma and the relationship with breast carcinoma treatment efficacy of paclitaxel. Methods The expression of Aurora-A were tested by immunohistochemical SP method in 67 cases of breast carcinoma. The relationship of Aurora-A with treatment efficacy of paclitaxel was analysed. Results The expression rate of Aurora-A was 73.13%(49/67)in breast carcinoma. The treatment effective rate of breast carcinoma was 77.78%(14/18) and the rate of nonresponder was 11.11%(2/18) in negative expression of Aurora-A;but the treatment effective rate was 34.69%(17/49) and the rate of nonresponder was 34.69%(17/49) in positive expression of Aurora-A. There were obvious correlations between expression of Aurora-A and treatment efficacy of paclitaxel. Statistical significance could be found between them (P = 0.013 ). Conclusion There is manifest correlation between the high expression of Aurora-A and resistance of paclitaxel in breast carcinoma.

BACKGROUND: A large number of cytokines produce in the periodontium on the tension side during orthodontic tooth movement, participate in periodontal remodeling, and make the tooth move to its normal position, thus achieving alveolar remodeling. Heat shock protein 27 (HSP27) is reported to be involved in the periodontal remodeling. OBJECTIVE: To investigate the expression of HSP27 in the rat periodontium on the tension side during the orthodontic tooth movement.METHODS: The rat models of orthodontic tooth movement were constructed using NiTi coil spring with the force value of 50 g. The periodontal samples were collected at 1, 3, 5, 7, 10 and 14 days after exerting force to detect the expression level of HSP27 in the periodontium on the tension side.RESULTS AND CONCLUSION: Immunofluorescence staining results revealed that the expression level of HSP27 in the periodontal tissues began to increase at the 1st day after exerting force, reached the highest level at the 3rd day, and then fell to the initial level at the 5th day. To conclude, HSP27 is evoked by orthodontic force early, and it may play a role in periodontal remodeling.

OBJECTIVE:To observe the clinical efficacy of Yiru tiaojing granules on hyperprolacfinemia(HPRL)of renal deficiency and liver stagnation type.METHODS:HPRL patients were randomized to treatment group(Yiru tiaojing granules)or treatment group(Bromocriptine)for 3 months.Patients' symptoms and sex hormone were recorded.RESULTS:As compared with before treatment,serum level of prolactin(PRL)was significantly reduced(P

Objective To study the clinical significance of lung function and allergen detection in the diagnosis of cough variant asthma (CVA) in children. Method Forty-three cases of chronic cough in children with bronchial provocation (diastolic) test and skin prick allergy test results were analyzed, CVA group was 23 cases and control group was 20 cases. Results The positive of bronchial provocation (diastolic) test in CVA group was 19 cases, significantly higher than that in control group (3 cases, χ2=14.745, P ＜ 0.01 ).The positive of skin prick allergy test in CVA group was 17 cases , significantly higher than that in control group (5 cases, χ2 = 10.243,P ＜0.05). The correlation analysis showed that bronchial provocation (diastolic) test and skin prick allergy test was significantly correlated (r =0.404,P＜0.01 ).Conclusion Bronchial provocation (diastolic) test has an important role in the diagnosis of CVA; skin prick allergy test has a supporting role on the CVA diagnosis;allergens affect on lung function, bronchial provocation (diastolic) test with the help of skin prick allergy test in children with cough variant asthma diagnosis.

BACKGROUND:Extensive research has been concentrated on the reconstruction of periodontium under orthodontic force. However, there are no reports regarding the expression of heat shock protein 70 (HSP70) in rat periodontium during orthodontic tooth movement. OBJECTIVE:To investigate the expression of HSP70 in rat periodontium during orthodontic tooth movement. METHODS:Rat orthodontic tooth movement models were established using NiTi extension spring with the force of 50 g. The orthodontic periodontium was col ected at 1, 3, 5, 7, 10 and 14 days after exerting force to detect the expression of HSP70. RESULTS AND CONCLUSION:According to immunofluorescence staining, the expression of HSP70 in the periodontal tissues was increased on day 1 after exerting force, and reached the highest level on day 5, then decreased to the initial level on day 14. These results suggest that the expression of HSP70 is evoked by orthodontic force, and it may play a role in periodontal remodeling.

OBJECTIVE: To establish an HPLC method for the determination of rebamipide in rats' plasma and colonic tissue.METHODS: The rats were assigned to receive 4 mg rebamipide chitosan capsule or its gelatin capsule or its CMC-Na solution peros.Then the plasma and colon tissue samples were taken at different time for a determination of the concentration of rebamipide by HPLC gradient elution with Cmax computed.RESULTS: The linear range for rebamipide was from 20～2 000 ng?mL-1.The average extracting recoveries of rebamipide from the plasma and the colon were 88.4% and 90.8%,respectively.After oral administration of 4 mg rebamipide chitosan capsule or its gelatin capsule or its CMC-Na solution,the Cmax of rebamipide in the colon tissue were 5 963.9,2 190.7 and 1 185.8 ng?g-1 respectively versus 252.7,949.0 and 1 023.3 ng?mL-1 respectively in plasma.CONCLUSIONS: The established HPLC gradient elution in the study can be used to determine quantitatively the rebamipide level in plasma or colon tissue for the development of its colon specific delivery preparations.

Objective To explore the correlation between the time course of disease and bone metabolism changes in patients with spinal cord injury. Methods Data on serum osteocalcin(SO)measured by radioimmunoassay(RIA)from a database on 167 patients with spinal cord injury(SCI)were analyzed retrospectively.The patients were divided into four groups according to the time post-injury:group A(＜3 months post-injury,n=44),group B(3-6 months post-injury,n=42),group C(7-12 months post-injury,n=37)and group D(＞12 months post-injury,n=44). Results The mean SO value in all 4 groups of patients was significantly higher than normal.The mean SO value of group B was significantly higher than that of group A,but not significantly different from that of group C.The mean SO value of group D was significantly lower than that of group C,but not significantly different from that of group A.Conclusion Serum osteocalcin is elevated in the early stages of SCI,and its subsequent de-cline is closely correlated with the time post-injury.

Osteocalcin is one of the biochemical markers of bone metabolism, produced by mature osteoblasts. It has been shown that serum osteocalcin is a marker of osteoblastic activity, and the levels reflect the rate of bone formation and bone turnover. Bone metabolism after spinal cord injury (SCI) initially reflects a disproportion between highly bone resorption and almost normal or lightly elevated bone formation, indicating an increase in bone turnover. Osteocalcin and other biochemical markers may be helpful to know the bone metabolism after SCI and to evaluate the effect of all kinds of methods in treating and preventing osteoporosis after SCI.

Objective To establish normally immortalized porcine hepatocyte lines by ectopic expression of simian virus 40 large T (SV40LT) antigen and the human telomerase reverse transcriptase(hTERT). Methods Primary porcine Hepatoeyte cells were transfeeted with recombinant retrovirus containing SV40LT or hTERT respectively. Subsequently drug resistant cell clones were screened and expanded for further studies. Immortalized porcine hepatocyte was confirmed by examination. Results The morphological phenotype of the transfected cells was similar to the primary porcine hepatocyte. One clone, HepLP, has been maintained in cultue for half year, and expanded by more than 60 passages. SV40 LT and hTERT could be detected in transfected porcine hepatocyte. Pig albumin mRNA was also detected by RT-PCR. No tumor formation occurred when HepLP cells were injected into Balb/c nude mice. Conclusions The immortalized, nontumorigenic, porcine hepatoeytes maintained the properties of porcine primary hepatocytes such as the albumin secretion. This generation of immortalized porcine hepatocyte may be helpful for bioartifical liver support system, hepatocytes transplantation, drug/toxicological studies, and liver biologic studies.

Objective To observe and cpmpare the efficacy and complications of hyperfractional integrated intraeavitary brachtherapy in middle-advanced squamous-cell carcinoma with the traditionsl brachytherapy.Methods In the observed group,328 patients with cervical cancer received hypeffractional integrated intracavitary after loading therapy between Jan 2004 and Jan 2005 were selected.The dose of point A was 2.5 Gy-3.0 Gy/fraction,2 fractions per week,and the total dose of reference point A was 49.8 Gy in stage Ⅱ b,52.6 Gy in stage in Ⅲb.In the control group,331 cases treated with traditional aflerloading brachytherapy between Jan 2002 and Dec 2003 were selected.The dose of point A was 5.0～7.0 Gy/fraction,1 fraction per week,and the total dose of point A was 50.1 Gy in stage Ⅱb,53.5 Gy in stage Ⅲb.In vitro irradiation began at the same time with the intracavitary brachytherapy.The whole pelvic was irradiated with 15 MV X-rays.Results In the observed group,the recent control rate of stage Ⅱb was 97.2%(104/107),94.1%(208/221)for stage Ⅲb.The 3-year survival rate was 80.5%(264/328).and the 5-year survival rate was 68.6%(225/328).The complication rate was 5.2%(17/328)for cystitis, 14.6%(48/328) for proctitis.Out of 331 cases in control group,the recent control rate of stage Ⅱb was 95.4%(103/108),92.8%(207/223)for stage Ⅲb.The 3-year survival rate was 75.2%(249/331),the 5-vear survival rate was 62.5%(207/331).The complication rate was 13.3%(44/331)for cystitis,and 32.3%(107/331)for proctitis.Conclusions Compared with combination of traditional brachytherapy and external radiotherapy,combination of hyperfraetional integrated brachtherapy therapy and external radiotherapy has no significant improvement for recent control rate and long-term survival rate,but could reduce the complication rates of cystitis and proctitis.