Objective To study the effects of nitric oxide (NO) on the growth and metastasis of tumor.Methods The literatures of recent years were reviewed.Results NO had double effects on the growth and metastasis of tumor. NO promoted the growth and metastasis by regulating the expression of tumor proliferation gene and inducing tumor angiogenesis. On the other hand, NO had antitumor effects by interfering with the metabolism of tumor cells, inducing the damage of DNA, forming high toxic free radical, inducing apoptosis of tumor cells and mediating the antitumor action of endothelial cells and macrophages.Conclusion Selective blockage or induction of synthesis of NO may be a new way for tumor therapy.

Animals ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; Arsenicals ; pharmacology ; HeLa Cells ; pathology ; Humans ; Leukemia, Promyelocytic, Acute ; pathology ; Oxides ; pharmacology

Histiocytoma, Benign Fibrous ; Humans ; Male ; Middle Aged ; Orbital Neoplasms

Objective To investigate the expression of inducible nitric oxide synthase (iNOS) and p53 protein in hepatocellular carcinoma (HCC) and their relationship with angiogenesis. Methods Immunohistochemical method and image analysis technique were used to detect the expression of iNOS and p53 protein in tumor tissue sections of 59 HCC patients. Microvessel density (MVD) was counted by immunohistochemical staining with anti CD34 antibody.Results ①The expression rates of iNOS and p53 were 81.4%(48/59), 64.4%(38/59) in HCC patients, respectively. The expression intensities of iNOS and p53 were 5 635?1 287, 3 352?873 in HCC patients, respectively. ②MVD was 32.5?2.73 in the tumor tissue of HCC patients. ③The expression of iNOS was correlated with the expression of p53 and MVD in HCC patients ( P

Objective To determine clinical characteristics and the effects of drug-eluting stents on the occurrence of major adverse cardiac events during percuteneous coronary artery interventional(PCI)and long- term outcomes in patients with chronic renal insufficiency(CRI).Methods Nine hundreds and seventy three patients with angiographically-documented coronary artery disease(lumen inner diameter narrowing＞50%), included 516 patients complicated with experienced renal impairment(CRI group)and 457 with normal renal function(control group).Baseline clinical data and coronary angiographic features were recorded.Results Comparing with control group,patients in CRI group were older with higher incidence of hypertension or diabetes and simultaneously complicated by reduced left ventricular ejection fraction,and more complex coronary lesions(type C).During follow-up(mean 17 months),the mortality was significantly higher in CRI than in control group(6.2% vs 3.3%,P＜0.05),but the former with CRI was significantly lower by using drug-eluting stents in comparing with bare-metal stents(4.1% vs 8.5%,P＜0.05).Conclusion Patients with CRI often complicated with severe coronary artery disease,the mortality after PCI would be significantly reduced by using drug-eluting stents.

Objective To compare the effects of different antiplatelet therapy on outcomes in patients with acute coronary syndrome (ACS). Methods 338 hospitalized patients with ACS were enrolled. They were assigned to three groups: group 1, aspirin alone after discharge, n=93; group 2, dual antiplatelet treatment of aspirin and clopidogrel after discharge for 6～12 months, then aspirin, n=127; and group 3, dual antiplatelet treatment of aspirin and clopidogrel after discharge for 2 years, n=118. All the patients were followed up for 2 years. The clinical data (basic clinical data, platelet count and serum lipids indeices), primary end point (cardiovascular death, nonfatal myocardial infarction and stroke) and hemorrhagic events (major hemorrhage, moderate hemorrhage and minor hemorrhage) within 1 and 2 years were analyzed. Results During 1 and 2 years, compared with group 1, the incidence of cardiovascular death and all primary end points of groups 2 and 3 decreased significantly (P＜0.05), but the nonfatal myocardial infarction and stroke did not （P＞0.05）. The difference was not statistically significant between groups 2 and 3 in all the end points （P＞0.05）. The difference of hemorrhagic events was not statistically significant among the 3 groups（P＞0.05）. Conclusion Dual antiplatelet treatment of clopidogrel plus aspirin for 2 years may decrease the mortality of cardiovascular disease while the incidence of severe hemorrhage doesn't increase.

Objective To evaluate the effect of treatment of the intervertebral infection via single?stage posterior midline incision and bilateral muscle gap approach. Methods A retrospective of 39 cases (male 25 cases, female 14 cases) of lumbar in?tervertebral infected patients from October 2012 to December 2014 who were treated by posterior debridement, interbody fusion using allograft and posterior instrumentation through paraspinal muscle gap approach were analyzed, whose mean age was 48 years (range 11-70 years). According to the confirming diagnosis, patients underwent postoperatively anti?inflammatory or chemotherapy treatment. The disease controlling statues were evaluated based on laboratory results of ESR, CRP;Imaging examinations were tak?en to evaluate the fusion of vertebral body;Clinical effects were evaluated using the Visual Analog Scale (VAS) and the JOA score of lumbar function. Results In these 39 cases of intervertebral infection patients, 8 cases ware diagnosed as pyogenic infec?tious, 25 cases were diagnosed as tuberculosis infections, 2 cases were diagnosed as unknown infections, and brucellosis infec?tious was found in 4 cases. All patients' symptoms were significantly improved. The lower back VAS score: average 8.22±0.93 points before operation, average 2.21 ± 0.88 points one week after operation, and an average score of 0.80 ± 0.58 points by the last follow?up time. The lower extremity VAS score: average 2.32 ± 1.82 points before operation, average 1.89 ± 0.62 points one week after operation, and an average score of 0.61±0.47 points by the last follow?up time. All patients were followed up for 12-18 months (average 13 months), One patient with pyogenic infectious occurred wound infection 1 week postoperatively, and healed after a repeatedly surgery. No internal fixation loosening, fracture, or segmental collapse was observed ,and good fusion was present in all patients after 12 months. JOA lumbar function score: all patients were effective after operation, the improve?ment rate was excellent in 76.9%, good in 17.9%, and passable in 5.2%. Comparing with preoperation, the excellent and good rate was 94.8%. Conclusion The treatment of lumbar intervertebral infection via single?stage posterior midline incision and bi?lateral muscle gap approach was clinically effective, which can completely remove the lesion, and achieve rigid internal fixation.

Adolescent ; Athletes ; Cortisone ; blood ; Diagnosis, Differential ; Drugs, Chinese Herbal ; therapeutic use ; Hemoglobins ; analysis ; Humans ; Male ; Medicine, Chinese Traditional ; Phytotherapy ; Testosterone ; blood

A fusion expression vector pPIC3.5K-PDGFR? was constructed to express recombinant receptor tyrosine kinase PDGFR? and the right Pichia pastoris transformants were screened on his-deficient plates and YPD-G418 plates by turns after electroporation of strain GS115, a high yield strain named M3 was screened. The strain M3 was cultured in a 5 L fermentor and His-GFP-PDGFR? fusion protein was purified by Ni2+ chelating affinity chromatography. One distinct peak was obtained after elution with 250 mmol/L imidazole. Fusion protein was proved to be 90.08 kD by western blotting, and have tyrosine kinase activity by ELISA. Results showed that the receptor tyrosine kinase PDGFR? was successfully expressed in P. pastoris and could be used as a target for small molecule selective inhibitors screening.

Objective To evaluate the efficacy and safety of a levonorgestrel-releasing intrauterine system(LNG-IUS)for the treatment of dysmenorrhea associated with adenomyosis.Methods We recruited 48 women with moderate or severe dysmenorrhea associated with adenomyosis.All women were inserted of LNG-IUS into their uterine cavity from days 5-7 of their periods and maintained for 12 months.We compared the visual analogue scale(VAS)scores and verbal rating scale(VRS)scores of their dysmenorrhea and dyspareunia at baseline and 12 monthes follow-up.Results Forty-four women completed the study. There were significant differences between mean VAS and VRS scores changes of dysmenorrhea and dyspareunia at baseline and 12 monthes follow-up,those of dysmenorrhea dropping from 75?13 to 11?11 and 2.3?0.4 to 0.4?0.3,those of dyspareunia dropping from 54?19 to 4?4 and from 1.6?0.8 to 0.2?0.2 respectively.Overall 29 women(66%)were very satisfied or satisfied with the one-year treatment. Conclusion Insertion of LNG-IUS alleviates moderate or severe dysmenorrhea associated with adenomyosis remarkably.