To investigate the mechanism of inhibitory effect of a novel bFGF antagonist peptide isolated from the phage display random heptapeptide library on cell proliferation induced by basic fibroblast growth factor. The effect of P7 on cell morphology was observed under an inverted microscope. Flow cytometry was applied to analyze the effect of P7 on cell cycle progress of bFGF-stimulated cells. The effect of P7 on bFGF-induced activation of MEK and Erk1/2 in MAPK pathway was detected by Western blotting. The results showed that no significant cell morphology change was observed in the range of detected concentrations of P7. Cell cycle analysis showed that P7 decreased S-phase cell population and arrested cell cycle at the G0/G1 phase of bFGF-stimulated cells. The results of MAP kinase activation assay indicated that P7 decreased bFGF-induced MEK and Erk1/2 phosphorylation in a dose-dependent manner. P7 inhibited proliferation of bFGF-stimulated Balb/c 3T3 cells possibly via cell cycle arrest at the G0/G1 phase and down-regulation of signal molecular activation in MAPK pathway.

AIM: To analyze the lovastatin-induced differential gene expression in HepG2 cells using a cDNA microarray assay. METHODS: Total RNA was extracted from the lovastatin-treated HepG2 cells and control group. cDNA was synthesized from RNA with Cy3/Cy5-labelled dCTP. Then the hybridization was conducted. The result was analyzed using Imagene and Genespring software. RT-PCR was carried to confirm the hybridization results. RESULTS: 30 genes were up-regulated while 11 genes were down-regulated in lovastatin-treated HepG2 cells, involved in some major functional areas including signal transduction, cell cycle regulation, tumor immunity, and so on. CONCLUSION: The analysis of differentially expressed genes in lovastatin-treated HepG2 cells is helpful to explore the mechanism of the anti-tumor activity of statins.

ObjectiveTo recognize the normal CT appearances of adult pterygoid hamulus and increase the ability to recognize pterygoid hamulus abnormalities.Methods The pterygoid hamulus of 108 normal adults ( male:53 cases,female,55 cases) were studied with MIP and VR reconstructive images by 64-slice spiral CT in order to observe its normal shape,to measure its length,diameter,vertical height,horizontal width,abduct angle in coronal position and post-abducent angle in anteroposterior position.The differences between genders,two sides and age groups were compared,respectively.ResultsThe normal pterygoid hamulus had a wide basal body and a pillar caudomedial part with round or intumescentia extreme.In coronal position,the distal end towards outer direction in 214 sides and 2 sides in inner direction. In anteroposterior position,the distal end towards posterior direction in 190 sides and anterior direction in 26 sides.The pterygoid hamulus length,vertical height,and horizontal width of adult males were (8.18 ± 0.94) mm,(7.23 ±0.92) mm,(4.27 ±0.81 ) mm,respectively.They were larger than the adult females (7.31 ± 1.01) mm,(6.26 ±0.90) mm,(3.97 ±0.82) mm,and the difference was statistically significant (t values were 6.56,7.86,2.72 respectively,P ＜ 0.05).The pterygoid hamulus vertical height of age group over 60 years old (7.13 ± 1.35) mm exceeded the age groups of 18-39 (6.55 ±0.86) mm.The difference was statistically significant ( F =4.95,P ＜ 0.05 ).Conclusions64-slice spiral CT could display the shape,length and angle of pterygoid hamulus in full. It could help to recognize correlated pterygoid hamulus diseases.

Objective To observe the clinical effect of edaravone combined with fibrinolysin for treating acute cerebral infarc-tion .Methods 80 cases of acute cerebral infarction were randomly divided into the two groups .The treatment group(40 cases) was treated by edaravone injection 30mg plus normal saline 100 mL by intravenous drip ,twice daily ,fibrinolysin injection 100 U plus 5%glucose injection 250 mL by intravenous drip on 1 d ,subsequently 200U plus 5% glucose 250 mL by intravenous drip from the next day ,for 14 d;the control group(40 cases ) used fibrinolysin alone ,the dose and usage were same to the treatment group .The neuro-logical impairment scale scores(NIHSS) were monitored before and after treatment in the two groups .Results The NIHSS scores and Barthel index on 7 ,14 ,30 ,90 d after treatment in the treatment group were superior to those in the control group (P<0 .05) ,no statistical difference before treatment between the two group existed .Conclusion Edaravone combined with fibrinolysin has better effect for treating acute cerebral infarction .

Objective To investigate the effects of tetanic stimulation of peripheral nerve on intracranial direct electrical stimulation motor-evoked potentials (MEP) in patients undergoing cerebral functional area operation. Methods Eight patients undergoing elective brain tumor resection under propofol-fentanyl anesthesia with partial neuromuscular blockade were enrolled in the study. Both conventional MEP (C-MEP) monitoring and posttetanic MEP (P-MEP) monitoring were performed throughout the operation for each patient, and the two groups of data were recorded. For one group, direct electrical stimulation with a train of five pulses was delivered to motor cortex and pyramidal tract, C-MEP was unilaterally recorded from the abductor pollicis brevis, and P-MEP was obtained 1 s after tetanic stimulation (frequency 50 Hz, intensity 50 mA, duration 5 s) to the ipsilateral tibial nerve.For the other group, direct electrical stimulation with a train of five pulses was delivered to motor cortex and pyramidal tract, C-MEP was unilaterally recorded from the tibialis anterior, and P-MEP was obtained 1 s after tetanic stimulation (frequency 50 Hz, intensity 50 mA and duration 5 s) to the contralateral tibial nerve. Randomized crossover method was used for C-MEP and P-MEP recording in each group, with an interval of 120 s. The adverse effects were observed. Results Amplitudes of P-MEP from the abductor pollicis brevis and tibialis anterior were significantly higher than those of C-MEP. Three patients had body movement during intraoperative cortex stimulation, while there was no awareness during operation and other electrical stimulation-related nervous system impairment and complications. Conclusion The application of tetanic stimulation of peripheral nerve before direct electrical stimulation can augnent the amplitudes of MEP from the abductor pollicis brevis and tibialis anterior in patients undergoing cerebral functional area operation.

Objective To analyse the spectral patterns of complementarity determining region 3 (CDR3) length distribution of T lymphocyte receptor beta chain variable (TRBV) gene families in infiltrating T cells of the liver tissues and the peripheral blood samples of patients with chronic hepatitis B (CHB) in order to evaluate the characteristics of T cell clonal expansion. Methods The spectral patterns drift of TRBV gene families (the monoclonal/oligoclonal TCR β T cells) in the peripheral blood and hepatic tissues from 11 cases of CHB patients were analyzed by the real-time fluorescence quantitative reverse transcription polymerase chain reaction (FQ-PCR) with DNA melting curve analysis, and abnormal rates of TRBV gene families were compared between CHB patients and healthy control. The comparison of rates was done by chi square test. Results The gene melting spectral pattern of 26 TRBV families of the 11 CHB patients, no matter in the peripheral blood or hepatic tissue, showed either a single peak or prominent melting peaks, even disappeared for certain TRBV families. The abnormal rate of TRBV gene families in the hepatic tissues was significantly higher than that in the peripheral blood samples (x2 = 23. 246, P＜0. 01). What is more interesting was that some parts of TRBV families were identical in both the peripheral blood and the hepatic tissue in certain patients. TCR BV13.1, TCR BV17 and TCR BV22 fragments were found to be restricted used in both the peripheral blood and hepatic tissue by some CHB patients. Conclusions T cells in the peripheral blood and the hepatic tissues of CHB patients can develop clonal expansion to some extent.Parts of TRBV families are restricted used in the peripheral blood and hepatic tissue in some CHB patients, which offers a foundation for further studying the common specific spectral drift patterns of TRBV CDR3 gene in CHB patients.

Objective To evaluate the value of ultrasound elastography in the diagnosis of breast tumor ,and compared with imaging analysis .Methods To collect the image data of 160 patients ,confirmed by pathology ,a total of 182 ,preoperative ultra-sound elasticity imaging and DWI ,ultra sonic elastography diagnosis by five points method ,DWI on the basis of the measured ADC value in the diagnosis of lesions ,respectively compared with pathology .Results Ultrasound elastography diagnosis of 89 malignant tumors ,of which the correct diagnosis of 78 malignant tumors ,7 misdiagnosis ,11 benign misdiagnosed as malignant diagnosis;93 benign tumors ,86 of correct diagnosis ,11 misdiagnosis ,7 malignant misdiagnosed as benign ,sensitivity was 87 .6% ,specificity of 92 .5% ,the Accuracy was 93 .9% ;ultrasound elastography and DWI combined imaging diagnosis of 86 malignant tumors ,81 correct diagnosis of malignant tumors ,4 misdiagnosis ,5 from the benign misdiagnosed as malignant diagnosis ,96 benign tumors ,92 correct diagnosis ,5 misdiagnosis ,the sensitivity was 94 .1% ,specificity of 95 .8% ,the accuracy was 97 .2% .Conclusion Ultrasound elas-tography in breast benign and malignant tumor diagnosis with higher sensitivity and specificity ,accuracy ,joint DWI can significantly improve the sensitivity and specificity of breast benign and malignant tumor diagnosis ,accuracy .

AIM:To investigate the immune function of dendritic cells(DCs)in patients with hepatocellular carcinoma(HCC).METHODS:The DCs were cultured from human peripheral blood mononuclear cells(PBMC)by using GM-CSF and IL-4 for 7 days.Surface molecules CD86,HLA-DR of DCs were detected by flow cytometry.IL-12 production by DCs and IFN-? production by T cells was measured with ELISA and ELISPOT,respectively.Allogenic mixed lymphocyte reaction was detected by MTT assay.RESULTS:CD86 expression in DCs in HCC patients were markedly lower than that in health control(91.7% vs 83.5%,P0.05].However,after stimulated DCs with LPS,IL-12 production in HCC patients was significantly lower than that in health control [(478.6?142.7)ng/L vs(630.0?151.9)ng/L,P

Objective To investigate the influence of preoperative anxiety-depression status on the postoperative pain in patients undergoing gynecologic laparoscope surgery.Methods Ninety pa-tients,aged 18-65 years,BMI 18-30 kg/m2,ASA physical status Ⅰ or Ⅱ,undergoing gynecologic laparoscope surgery were included in this single-center observational study.All the patients were in-terviewed by anesthetists the afternoon before surgery and completed a Hospital Anxiety and Depres-sion Scale (HADS)to evaluate the anxiety-depression status.Then the patients were divided into two groups,low HADS group (group L)(HADS score≤9)and high HADS group (group H)(HADS score>9).Patients'visual analogue scores (VAS)were recorded at the time 30 min,60 min,6 h, 12 h,24 h after operation.The correlation analysis between HADS before operation and VAS scores at different time point was performed.The use of analgesia medicine,exhausting time and complica-tions such as nausea, vomiting, dizzy, pain of shoulder and back were also recorded. Results Compared to group H,VAS score was lower in group L at 6 hour after surgery but no sig-nificant different was found at 30 min,60 min,12 h,24 h after surgery.There was a significant asso-ciation between preoperative HADS scores and VAS at 6 hour after surgery (r=0.634,P=0.01);but no significant association was found between preoperative HADS scores and VAS at the other time point after surgery.The exhausting time was significantly longer in group H than group L (P<0.05).There was no significant difference in the incidence of nausea,vomiting,dizzy or pain of shoulder and back between the two groups.Conclusion Preoperative anxiety-depression status has a positive influence on postoperative pain at 6 hour after gynecologic laparoscope surgery,and also can delay the recovery of gastrointestinal function.

Objective To study the Hainan Utstein templates used for cardiac arrest and resuscitation registries to evaluate the epidemiological characteristics and outcomes of the patients with CPR by multi-center study. Methodsccording to the Utstein templates for cardiac arrest and CPR set by International Liaison Committee on resuscitation in 2004, a Hainan Utstein CPR registry chart was designed and a prospective descriptive study was carried out to evaluate the epidemiological characteristics, impact factors and outcomes of the patients with resuscitation attempt in emergency departments of thirteen hospitals in Hainan Island between January 2007 and December 2010.Results Of 1125 patients with cardiac arrest, male accounted for 73. 8％ and female was 26. 2％. The mean ( ± S. D) age of the cardiac arrest patients was 53.9 ± 13. 1 years old.Coronary heart diseases and hypertension were the most common preexisting chronic diseases in the studied patients. The ROSC rate and discharge rates after survival in 1125 patients with CPR were 23. 8％ and 7.4％ respectively. The ROSC rate and discharge rates after survival were 36. 3％ and 11.6％ in the in-hospital cardiac arrest (IHCA) group, respectively whereas 11.5％ and 3. 3％ in out-hospital cardiac arrest (OHCA) group. Of 188 patients with ventricular fibrillation/Pulseless ventricular tachycardia, the ROSC rate and discharge rate after survival were 58.0％and 21.8％,respectively. Of them, 448 (39. 8％ ) of the cardiac arrest patients had underlying cardiac causes, and the ROSC rate and discharge rate after survival were 36. 3％ and 11.5％ respectively in IHCA group whereas 11.6％ and 3. 3％ in OHCA group. The ROSC rate and discharge rate after survival were 69. 8％ and 7. 4％respectively in the tertiary hospitals whereas 30. 2％ and 7. 3％ in the secondary hospitals. Conclusions Patients experienced cardiac arrest were predominantly male. Coronary heart disease and hypertension were the two most common preexisting chronic diseases. The ROSC rate and discharge rate of patients with IHCA were higher than those with OHCA. ROSC rate and discharge rate after survival were higher in the ventriculat fibrillation/Pulseless ventricular tachycardia group than the other cardiac rhythms first witnessed groups. The time delayed of starting CPR after onset of cardiac arrest had a critical impact on survival and discharge rate in both IHCA and OHCA groups.