2.Induced Nitric Oxide From Alveolar Macrophages Inhibits Experimental Pulmonary Metastasis in Mice
Chinese Journal of Cancer Biotherapy 1996;0(04):-
The inhibition of pulmonary metastasis by inhalation of aerosolized recombinant 1L-2 (rIL-2) in BCG-primed mice is reported in this paper . (TA2 x 615) Fl mice were given ip BCG twice in two-week apart.Right after the second BCG injection, MA891 cells, a murine mammary adenocarcinoma of TA2 origin, were injected into the tail vein.Treatment with aerosolized rIL -2 by inhalation was given for 1 hr, 3 times a day and lasted for 14 days. After sacrifice, bronchoalveolar lavage was performed and the lavage fluid was examined for nitric oxide content. The number of tumor nodules on the lung surface was recorded as a measure of the extent of pulmonary metastasis. The results showed that in mice so treated, pulmonary metastasis was very significantly inhibited. When rIL-2 treatment was given in BCG-unprimed mice, inhibition of pulmonary metastasis was also observed albeit to a much lesser extent. Significant inhibition of lung metastasis was associated with significant increase in nitric oxide content in the broncho-alveolar lavage fluid. Moreover, when nitric oxide synthase inhibitor, NG monomethyl-L-arginine (7mg/kg) was given ip shortly before each inhalation of rIL-2, accompanied with a significant reduction of nitric oxide in the lavage fluid, the inhibitory effect of rIL-2 in both BCG-primed and -unprimed mice was almost completely abrogated. Taken together, the results clearly indicate that pulmonary metastasis can be effectively treated by the induction of endogenous release of nitric oxide from activated alveolar macrophages.
3.Prenatal ultrasound diagnosis of persistent right umbilical vein and its complicated abnormalities
Chinese Journal of Perinatal Medicine 2012;15(7):416-419
Objective To investigate the value of prenatal ultrasound in diagnosing fetal persistent right umbilical vein (PRUV) and structural malformations.Methods From April 2007 to August 2011,38 827 pregnant women in Obstetrics and Gynecology Hospital of Fudan University accepted ultrasound examination,among which 109 fetuses were found PRUV.The relation between PRUV and other structural abnormalities was retrospectively analyzed.Results The incidence of PRUV was 0.28% (109/38 827) including 100 singletons and 9 twins.Among the 109 cases of PRUV confirmed by the prenatal ultrasound diagnosis,95 cases did not complicate with fetal structural abnormality (90 singletons,5 twins),and had normal deliveries with healthy infants.Four infants were tested for their chromosomes and got normal results.The rest 14 fetuses with PRUV suffered from fetal structural abnormality (12.8%,14/109),among which,10 fetus (71.4%,10/14) suffered from cardiovascular abnormality such as endocrinal cushion defeats,double outlet right ventricle,single atrium and single ventricle.Nine pregnant women accepted artificial terminations.Only one of the 14 fetuses had chromosome test and got normal result.Conclusions Once PRUV was diagnosed by prenatal ultrasound,it is suggested to check the fetus carefully,especially the cardiovascular system.
4.Breast Cancer During Pregnancy
Chinese Journal of Bases and Clinics in General Surgery 2004;0(01):-
Objective To study the advances in research of breast cancer during pregnancy. Methods The literatures in recent years were reviewed. Results A lot of evidences suggested that the diagnosis may be delayed easily. The diagnosis was primarily made by needle aspiration cytology and biopsy. The treatment of pregnant breast cancer was not different from ordinary breast cancer, however the factor of foetus should be taken into account. Termination of pregnancy did not improve survival.Conclusion Pregnant breast cancer is mostly at later stage at the time of diagnosis and has poorer prognosis than ordinary breast cancer. The patients with breast cancer during pregnancy usually have an equivalent survival rate when compared with age and stage-matched ordinary group. Future pregnancy may be allowed after two years of treatment in patients with early breast cancer.
6.The radiological presentations of invasive pulmonary fungal infections and its clinical value in children
Chinese Pediatric Emergency Medicine 2016;23(9):595-599
With wide applications of invasive diagnostic and therapeutic techniques,as well as immu-nosuppressors clinically,the morbidity of invasive pulmonary fungal infections( IPFIs)in children were in-creasing considerably and becoming one of the important diseases threat to life. The mortality of IPFIs in chil-dren would be reduced and the prognosis would be improved significantly with early diagnosis and treatment in-time. Radiological examinations were the basal component of the clinical evidences for diagnosing IPFIs. The main presentations include pulmonary nodules,some with“halo sign”in invasive pulmonary aspergillo-sis and pulmonary candidiasis,lobular consolidations and a little pleural effusion. Although there was no spe-cific findings radiologically,they would provide the proofs and clues for diagnosis of IPFIs combining with the data of clinics and laboratory.
8.Expression of hyaluronidase and matrix metaloproteinase-9 in the invasion and metastasis of human breast cancer
Yi WANG ; Guosheng REN ; Yuan SHI
Chinese Journal of Minimally Invasive Surgery 2005;0(09):-
Objective To study the expression of hyaluronidase(HAase) and matrix metalloproteinase-9(MMP-9) in the invasion and metastasis of human breast cancer.Methods The expression of HAase and MMP-9 in human breast cancer was detected using tissue homogenate preparing, enzyme-linked immunoadsorbent assay(ELSA),and immunohistochemistry examination.Results ①The levels of HAase were 4.89?2.55,8.03?2.66,and 12.00?3.96 mU/g in grade Ⅰ,Ⅱ,and Ⅲ of breast cancer,respectively(n=10,20,3),with significant differences between each other(P
9.Effects of Pollution on Nonspecific Immune Function of the Children Living nearby a Municipal Solid Waste Landfill
Shu GUO ; Ren YUAN ; Yunjiang YU
Journal of Environment and Health 2007;0(10):-
Objective To investigate the effects of pollution on nonspecific immune function of the children living nearby a municipal solid waste landfill.Methods The concentration of lysozyme and SIgA of saliva came from 951 children who were selected from 3 schools nearby the landfill were analyzed by cluster sampling while the outside air pollutants were detected in 2006.The high-exposure group included 360 students living in a radius of less than 2 km from the landfill,the low exposure group was consist of 361 students living in a radius of 2-5 km,the others 230 students living in more than 5 km were taken as the control group.Results The results showed that the pollutants levels were concerned with the location of the landfill,the nearer to the landfill,the higher concentration of CH4,NO2,SO2,NH3,H2S and PM10 except CO.The level of saliva lysozyme ranked as high exposure group,low exposure group and the control group were 61.40,71.37 and 76.10 ?g/ml and the same rank for SIgA were 204.11,224.28,248.44 ?g/ml,with significant differences (P
10.Effects of ouabain on Na~+-K~+-ATPase activity and the expression of dopamine D_1 receptor in rat kidney cortex
Yurong ZHANG ; Zuyi YUAN ; Yanping REN
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(04):-
Objective To study the effects of chronic ouabain treatment on Na+-K+-ATPase activity and the expression of dopamine D1 receptor in rat kidney cortex. Methods A total of 28 male Sprague-Dawley (SD) rats were randomly divided into ouabain group and control group,which were treated with ouabain or saline for 5 weeks; rat tail systolic blood pressure (SBP) was recorded weekly. Rats were sacrificed after 3 and 5 weeks,respectively. Then Na+-K+-ATPase activity and the expression of dopamine D1 receptor in rat kidney cortex were measured by colorimetric assay and real-time PCR,respectively. Results After 3 weeks of ouabain treatment,the mean SBP did not change significantly,but the Na+-K+-ATPase activity increased (P