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

Humans ; Medicine, Chinese Traditional ; methods

Adolescent ; Angiotensin-Converting Enzyme Inhibitors ; therapeutic use ; Blood Pressure ; drug effects ; Child ; Child, Preschool ; Female ; Fosinopril ; pharmacology ; therapeutic use ; Humans ; Male ; Nephritis ; drug therapy ; Proteinuria ; drug therapy ; Purpura, Schoenlein-Henoch ; complications

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

The association of polymorphisms of calcium channel?1 subunit ( Cav1.1 ) gene ( - 1551T/C at exon 11 ) with thyrotoxic periodic paralysis (TPP) was investigated by PCR-RFLP.The distributions and frequencies of - 1551TC + CC genotype and C allele in TPP group were significantly higher than those in hyperthyroidism (HT) and normal control (CON) groups.There was no statistic difference between HT and CON groups.Cavl.1 gene - 1551TC + CC genotype and allele may contribute to the development of TPP in male HAN population from North China.

Objective To investigate the clinical value of King's College Hospital Criterion (KCH),Canadian Waitlisting Algorithm Criterion (CanWAIT) and Japanese Liver Transplantation Criterion (JLT) in predicting the prognosis of the patients with chronic severe hepatitis in China. Methods Fifty-five patients with chronic severe hepatitis were classified respectively by the three liver transplantation criteria.Those who were in line with the criterion were ascribed the matched criteria group (MCG),while those who were not in line with the criterion were ascribed the unmatched crite ria group (UCG).The end point of observation was the 90th day after their admission.The survival time and the mortality were compared between the MCG and UCG.The predictive ability for each cri- terion and their correlation with the clinical stages of chronic severe hepatitis were analyzed.Results Seventeen cases accorded with KCH and CanWAIT,while 38 cases did not accord with KCH and CanWAIT.The median survival time (MST) and their mortality in MCG group were 17.5 days and 100.0% respectively,while those in UCG group were 69.2 days and 34.2% respectively.Twenty- one cases accorded with JLT,while 34 cases did not accord with JLT.The MST and their mortality in MCG were 17.7 days and 95.2% respectively,while those in UCG group were 75.2 days and 29.4% repsectively.There were significant differences in MST and mortality between MCG group and UCG group with the 3 criteria (P

Objective To study the changes of pulmonary function in patients with active rheumatoid arthritis(RA).Methods Sixty patients with active RA were divided into low lung function group and normal lung function group by detecting their pulmonary function.The clinical symptoms and signs,laboratory indicators,health index(HAQ) score,disease activity score(DAS-28) and regulate T-cells(Treg) were observed.Results In 60 patients with active RA,42 cases(70%) were lower lung function and 18 cases(30%) were normal lung function.Compared with normal lung function group,Hb of low lung function group significantly lowered(P

Acupuncture Therapy ; Facial Paralysis ; therapy ; Humans ; Male

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