Endostatin, a 20 kD (184 aa) C-teminal fragment of collagenⅩⅧ,is the most potent inhibitor of tumor angiogenesis described so for. Endostatin was initially isolated from a murine hemangioendothelioma cell line (EOMA). Purified recombinant murine endostatin generated in E.coli bacteria injected as unfolded suspension, inhibited the growth of a varity of metastatic and primary tumors in mice. However, its widespread application has been hampered by difficulties in the large-scale production of the antiangiogenic proteins. The limitation may be resolved by in vivo delivery and expression of the antitangiogenic gene. This review summarized the advances in endostain research in recent years including structure, the mechanism of generating ,function and therapy.

Protein disulfide isomerase A3 (PDIA3) is a member of protein disulphide isomerase family and widely exists in endoplasmic reticulum, cell surface, nucleus and mitochondria.PDIA3 promotes the glycoprotein folding and quality control in the endoplasmic reticulum and is also a key molecular of major histocompatibility complex class I mol-ecules assembly.In addition, PDIA3 is involved in the cell signal transduction and plays an important role in a variety of disease development.Therefore, this paper talks about the function of PDIA3, the relationship between disease and PDIA3 as well as its clinical outlook.

Objective To analyze and summarize the characteristics of thyroid diseases on the MR diffusion-weighted imaging.Methods Forty-two patients with thyroid lesions,including 10 males and 32 females [age range 20-72 years,mean age (42 + 13) years] underwent MR DWI before surgery and biopsy.The diagnoses of thyroid lesions were confirmed by pathological results.ADC values of benign and malignant nodules,with different b values (b values was 300,500 and 800 s/mm2),were generated by using post-processing software Functool of GE company(USA).The independent-samples t test was used and ROC curve was made to evaluate the diagnostic efficiency of the ADC values by using statistical software SPSS 12.0.Results Histologically,there were 28 benign lesions and 14 malignant lesions.Benign lesions included 20 cases of thyroid adenoma,6 cases of nodular goiter and 2 cases of Hashimoto's thyroiditis respectively.Malignant lesions consisted of 11cases of thyroid papillary carcinoma,2 cases of follicular thyroid cancer,and 1case of dysplasia.mean ADC value of benign thyroid lesions was (2.39 ±0.38) ×10 -3 mm2/s and mean ADC value of malignant thyroid lesions was ( 1.60 ± 0.56) × 10 -3 mm2/s with b value of 300 s/mm2.The statistical difference was significant between them( t =5.35,P ＜ 0.05 ).The statistical difference of mean A DC values,between benign and malignant nodules with b value of 500 s/mm2 [ (1.85 +0.33 ) × 10 -3 mm2/s and ( 1.65 ± 0.42 ) × 10 -3 mm2/s ],was insignificant ( t =1.70,P ＞ 0.05 ).The statistical difference of mean ADC values,between benign and malignant nodules with b value of 800 s/mm2 [ ( 1.61± 0.30) × 10 -3mm2/s and( 1.44 +0.29) × 10 -3mm2/s],was insignificant (t =1.76,P ＞0.05 ).ROC curve indicated that the ADC value of 1.98 × 10-3 mm2/s or higher was the cut-off value for differentiating benign from malignant cold thyroid nodules,with a sensitivity of 85.7％,and a specificity of 78.6％.Conclusions The image quality is best with b value of 300 s/mm2.Mean ADC value of benign lesions was significantly higher than mean ADC value of malignant lesions with b value of 300 s/mm2.

BACKGROUND: Bone morphogenetic protein 2 possesses osteoinduction, and vascular endothelial growth factor plays a positive regulatory role in osteogenesis and bone repair. So what wil happen if both of them are used for spinal fusion? OBJECTIVE: To investigate the effects of fibrin glue combined with vascular endothelial growth factor 165 and recombinant human bone morphogenetic protein 2 on intertransverse process fusion. METHODS: Thirty Japanese white rabbits were randomized into three groups (n=10 per group): rabbits underwent intertransverse process fusion at the level of L5-6 with vascular endothelial growth factor 165/recombinant human bone morphogenetic protein 2/fibrin glue in experimental group, recombinant human bone morphogenetic protein 2/fibrin glue in control group, and fibrin glue in blank control group, respectively. At 6 weeks after implantation, observations of biomechanics, X-ray imaging and histology were performed. RESULTS AND CONCLUSION: Osteogenic fusion between transverse processes could be found in experimental and control groups except for the blank control group, which was better in the experimental group. The strength of osteogenic fusion in the experimental group was significantly stronger than that in the control group (P < 0.01). Besides, abundant chondrocytes, osteocytes, mature bone tissues and col agens could be found in the osteogenic fusion specimen of the experimental group, and numerous chondrocytes, osteocytes and mature bone tissues observed in the osteogenic fusion specimen of the control group. In conclusion, fibrin glue combined with vascular endothelial growth factor 165 and recombinant human bone morphogenetic protein 2 can promote osteogenic fusion.

Salidroside is the most important bioactive component of Rhodiolae Crenulatae Radix et Rhizoma. Many recent studies have shown that salidroside plays an protective role in cardiovascular system by inhibiting myocardial cell death, promoting angiogenesis, improving heart function, inhibiting platelet aggregation, promoting body fat mobilization and cholesterol metabolism and other pharmacological effects. This article reviewed recent studies on pharmacological effects of salidroside on the cardiovascular system, providing references for the research and application of salidroside.

Objective: To assess the peculiarity of fluorine-18 fluorodeoxyglucose (FDG) uptake in pulmonary granuloma. Methods: From February, 2000 to April, 2002, 12 patients with pulmonary granuloma were imaged with FDG-PET (positron emission tomography) before surgery. The maximum and mean standard uptake value (SUVmax and SUVmean) of granuloma were measured and compared with SUV of normal lung (SUVlung). Results: All pulmonary granulomas were detected by FDG-PET. FDG uptake of granuloma was higher than that of normal lung (P

Objective: To assess the peculiarity in fluorine-18 fluorodeoxyglucose (FDG) uptake in patients with bronchial alveolar carcinoma. Methods: From December, 1998 to April, 2002, 22 patients with bronchial alveolar carcinoma (BAC) were imaged with FDG-PET (positron emission tomography) before surgery. Their maximum and mean standard uptake value (SUVmax and SUVmean ) of tumor and SUV of normal lung (SUVlung) were measured. Results: All tumors were detected by FDG-PET. FDG uptake of tumor was higher than that of normal lung (P

Amino Acids ; metabolism ; Animals ; Brain ; metabolism ; Electromagnetic Fields ; Electrophysiological Phenomena ; Glutamates ; metabolism ; Male ; Neurotransmitter Agents ; metabolism ; Pain ; physiopathology ; Pain Threshold ; Rats ; Rats, Sprague-Dawley ; gamma-Aminobutyric Acid ; metabolism

Objective To compare the clinical value of nerve stimulator-versus ultrasound-guided continuous femoral nerve block for analgesia after laparoscopic surgery.Methods Forty patients,aged 18-60 yr,with body mass index of 18-30 kg/m2,of ASA physical status Ⅰ or Ⅱ,scheduled for elective laparoscopic surgery,were randomly assigned into 2 groups (n =20 each) using a random number table:nerve stimulator group (group S) and ultrasound group (group U).Epidural anesthesia was performed with 1.73 ％ carbonated lidocaine in both groups.0.2％ ropivacaine 5 ml/h was infused continuously after surgery to perform femoral nerve block for analgesia.VAS score at rest was assessed at 2,6,24 and 48 h after surgery.At 24 and 48 h after surgery,VAS scores during active and passive movement were assessed.The time for catheter placement near the femoral nerve and development of subcutaneous hematoma at the puncture site,local anesthetic intoxication and nausea and vomiting were recorded.The postoperative requirement for analgesics was also recorded.Results There was no significant difference in the VAS scores and puncture for femoral nerve block-and local anesthetics-related adverse events between the two groups.The time for catheter placement near the femoral nerve was 8.0 ± 1.4 and (6.7 ± 0.9) min in S and U groups,respectively,and the time was significantly longer in group S than in group U.No patients required rescue analgesic after surgery in both groups.Conclusion Nerve stimulator-guided continuous femoral nerve block provides higher clinical value than ultrasound-guided continuous femoral nerve block for analgesia after laparoscopic surgery and it is more suitable for clinical application.