In order to select a computed tomography(CT)scanner system with reasonable cost performance (performance-price ratio) among various brands and types of CT products in accordance with the clinical features of the pediatric patients, Tianjin Children's Hospital made a feasibility study on purchasing the equipment in all its aspects, including the evaluation of its type and performance, social and economic benefits, and eventually purchased a 16-slice helical CT scanner which fully fulfills the practical needs of the hospital. This way of evaluation can be widely used in the feasibility study for purchasing different large-scale medical equipment to avoid unnecessary waste of funds.

In recent years,the efficacy of cervical cancer treatment has been increasing gradually.It has got a basic consensus of the standard treatment mode for most cervical cancer,but further effort should be done to improve the treatment response of locally advanced cervical cancer and recurrent or metastatic cervical cancer.The efect of redical surgery and radiotherpy is the same to early cervical cancer.Concurrent chemoradiotherapy is the standard treatment for patients with locally advanced cervical cancer.Chemotherapy combined with antiangiogenic targeted therapy can improve the survival of patients with recurrent or metastatic cervical cancer,while whether needing new adjuvant therapy or not,it asks for further investigation.

Objective: To investigate the antitumor effect of SGI-1776 on human ovarian cancer HO-8910 cells and its molecular mechanism. Methods: HO-8910 cells were cultured in vitro, and the proliferation inhibitory effects of SGI-1776 were determined by MTT assay and colony formation assay. The effect of SGI-1776 on the distribution of cell cycle phase was observed by flow cytometry with propidium iodide (PI) staining. hTe inhibition rate of migration and invasion were valued by transwell cell assay. Multiple molecular techniques, such as ELISA, Western blot, siRNA and cDNA transfection were used to explore the molecular mechanism. Results: SGI-1776 presented dramatic anti-tumor activity against HO-8910 cells in vitro, inhibited the cells proliferation and colony formation, and attenuated the migration and invasion in a dose-dependent manner, accompanied by cell cycle arrest in G1 phase. SGI-1776 caused the proliferation inhibition with concomitant decrease in Pim-1 kinase activity, down-regulated the expression of Pim-1 protein and and its downstream genes, such as CDK6, pCDK6, CDK4, pCDK4, CDK2 and pCDK2, and increased the expression of P21 and P27. Down-regulation expression of Pim-1 by siRNA followed SGI-1776 treatment resulted in enhanced cell proliferation inhibition rate and attenuated migration/invasion. Up-regulation of Pim-1 by cDNA transfection attenuated SGI-1776-induced cell proliferation inhibition and its migration/invasion. Conclusion: Pim-1 mediates the biological effect of SGI-1776 in human ovarian cancer HO-8910 cells, suggesting Pim-1 might be a novel target for human ovarian cancer.

BACKGROUND: There is a close correlation between telomere length and cell senescence, immortalization or canceration. OBJECTIVE: To explore the significance of telomere length diversifies in the chronic compartment syndrome in lumbosacral region. DESIGN, TIME AND SETTING: A comparative observation was performed at the State-Level Key Medical Genomics Laboratory, Shanghai Jiao Tong University School of Medicine from July 2007 to February 2008. PARTICIPANTS: The vertical spinal muscular tissue samples were taken from people aged 29-49 years old [mean aged (34.7?12.6) years] including 10 normal people and 15 patients with chronic compartment syndrome. According to the age, the normal were divided into the aged 30-37, and aged 38-45 groups. The abnormal were divided into aged 29-34, aged 35-43 and aged 44-49 groups, with 5 samples in each group. METHODS: DNA was extracted from samples of each group. Telomere length in vertical organizations spinal muscular skeletal muscle was measured by Southen Blotting hybrid technology. MAIN OUTCOME MEASURES: Telomerase length of erector spinal muscles in patients and normal people. RESULTS: The mean telomere length in patients with chronic compartment syndrome was obvious shorter than that of the normal people, which has significant difference (P

Shenghua decoction made by FU Qing-zhu is a famous formula aimed at syndrome of coagulation cold due to blood deficiency,static blood obstruction.The mechanism of disease is definite when this formula is applied.But the extensive use of Shenghua decoction,especially some potent preparation of it following childbirth without according to TCM principle based on differentiation of syndromes is a manifestation of highlighting formula and underestimating theory,which is useless and harmful.It should be emphasized.So the Shenghua decoction should be used under the direction of basic theory of TCM,through precise syndrome differentiation,according to the principle of "looking to and not being besieged by postpartum ".We should not follow blindly the method of treatment of "warming and resolving stasis" on the postpartum disease.It is important that Shenghua decoction should be used on the basis of syndrome differentiation.

The principles, traits, and proceedings of the data-driven methods including principal component analysis, independent component analysis and canonical analysis are summarized. And the aspects of the methods adapted to functional magnetic resonance images(fMRI) data are emphasized.

Positron emission tomography(PET) plays an important role in the research of substance distribution in Human body. The distribution of substance in whole body is carried out by the transport via circulation system and exchange between blood and tissue which occurs in microvascular. Both the research of PET and of microvascular are focused on the transport and exchange of substance in human body. So it should be meaningful to apply PET image to the research of microvascular, and to use the microvascular theory to improve on the analysis of PET image. In this article, some research in this domain are introduced, and foreground is reviewed.

Objective To assess atrophy of the multifidus in elderly patients with low back pain using magnetic resonance imaging.Methods Thirty patients with low back pain were recruited,and 15 healthy subjects formed a normal group.The cross sectional area (CSA) and signal strength of the multifidus muscles at the L4-5 and L5-S1 levels were measured along with the signal strength of the hip fat for all of the subjects in both groups using a superconducting magnetic scanner.Results There was no statistically significant CSA difference between the groups at either level.The contrast between multifidus muscle and adipose tissue was significantly different between the groups at both levels.Conclusion In evaluating atrophy of the multifidus muscle in elderly patients with low back pain,the contrast between multifidus muscle and adipose tissue at either level L4-5 or L5-S1 can be used for assessment.It is more reliable,specific and sensitive than the CSA of the muscle.

AIM: To establish chromatography fingerprint of Radix Ophiopogonis. METHODS: HPLC was applied on a Kromasil C_(18) column(5 ?m,4.6 mm?250 mm) with CH_3CN-0.01%H_3PO_4 solution by gradient elution,flow-rate of 1.0 mL/min,and the UV absorbance was monitored at 297 nm. RESULTS: 30 common peaks were picked up. CONCLUSION: This method is reliable,simple and provides a reference standard for the quality control of Radix Ophiopogonis.

Object To study the suitable conditions on tissue culture of stem apex and shoot rapid propagation of ginger. Methods The ginger stem apex ((?)