Nasal polyps is a common disease in clinical, with nasal mucosal inflammatory hyperplasia. However, the molecular mechanism of it is largely unknown. Tumor suppressor genes, proliferation and apoptosis related genes and cytokines play an important role in the formation and pathological development of nasal polyps. The expression level of tumor suppressor related proteins and receptors is not constant, high level of these expression can stimulate nasal mucosal proliferation, while low or lacking expression may facilitate nasal polyps cells apoptosis. Both proliferation and apoptosis make a big difference in nasal polyps formation and development. This article concludes the relationships between new progressions in nasal polyps pathogenesis and tumor suppressor genes and proliferation apoptosis genes, which not only helps practitioners deeply and comprehensively understand nasall polyps pathogenesis but promotes explorations to effective therapeutics.
Apoptosis ; Apoptosis Regulatory Proteins ; genetics ; Cytokines ; Disease Progression ; Genes, Tumor Suppressor ; Humans ; Nasal Mucosa ; Nasal Polyps ; genetics

Objective To explore the effects of vascular endothelial growth factor (VEGF) and nitric oxide (NO) on coronary collateral blood flow (CCBF) in a rabbit model of physical ischemic training (PIT),and to provide a foundation for the study of the mechanism of collateral circulation formation in PIT.Methods Models of intermittent myocardial ischemia were established in 55 rabbits by installing a water balloon constrictor on the left ventricular coronary artery.The rabbits were then divided into a sham-operation group,a pure ischemia group,a PIT group,a PIT group with NO inhibition pretreatment,a PIT group with VEGF inhibition treatment,and a PIT group with both NO and VEGF inhibition pretreatment.Microspheres were injected at modeling and before sacrifice before and after ischemic stimulation.At the termination of the experiment the ischemic myocardial tissue of the left ventricular anterior wall was sampled,and then relative CCBF was measured using the microspheres.Results There was no significant difference among the 6 groups before training.After training prominent differences among the groups were observed,with the PIT group having the greatest increase in CCBF.CCBF in the pure ischemia group,the PIT group,and the PIT group with NO inhibition pretreatment were significantly higher than in the sham-operation group.Significant differences were also found between the PIT group and the three pretreatment groups.CCBF in the PIT group with NO pretreatment and VEGF inhibition was significantly different from that in the NO pretreatment group,while it was not found in the group with VEGF inhibition pretreatment.The CCBF in the group with VEGF inhibition pretreatment and the group with NO inhibition pretreatment was similar.Conclusions PIT can improve CCBF to the remote ischemic myocardium when combined with VEGF and NO pretreatment.Blocking VEGF or NO can reduce CCBF after training,and both VEGF and NO are involved in the formation of collateral circulation,with VEGF playing the major role.

Objective To explore the side effects of pemetrexed in the maintenane therapy of nonsmall-cell lung cancer (NSCLC) at advanced stage and summarize the nursing measures. Methods Fifty-one NSCLC patients were treated maintenance therapy by pemetrexed. The side effects were observed and corresponding nursing measures were taken. Results The side effects included bone marrow depression of 33 cases, adverse reactions in gastrointestinal tract of 14 cases, and skin rashes of 4 cases, all at the degree of I-II. All of them were alleviated after active treatments. Conclusion Such nursing measures as close of side effects and careful nursing to the NSCLC patients treated with maintenance therapy with temetrexed are main measures for the success of treatment.

Objective To investigate the application value of three-dimensional power Doppler ultrasonography(3D-PDU) for synovial disease in patients with rheumatoid arthritis(RA). Methods Forty four patients with RA were divided into active (23 cases) and non-active (21 cases) groups. 3D-PDU was used in the wrists to measure the volume of synovium(V) ,vascular index(VI) in synovium.and Doppler spectrum was used to measure synovial artery peak systolic blood flow velocity(PSV) , end diastolic velocity (EDV) and resistance index(RI). Results There were significant differences of the V [(1. 73 0. 73) cm3] and VI (9. 53 6. 11) in the group of active patients compared to the V [(1. 09 0. 76) cm3 , P = 0. 008] and VI [(3.86 4.99), P = 0.000] in the ones of inactive patients. No differences were found for PSV [(16. 8 6. 29) cm/s vs (13. 5 8. 54) cm/s, P = 0. 282] ,EDV [(5. 51 1.77) cm/s vs (5. 03 2. 76) cm/s, P = 0. 539] and RI (0. 66 0. 07 vs 0. 62 0. 08, P = 0. 095)in the comparison of two groups. Conclusions 3D-PDU in determining RA disease activity in patients with synovial medium has a higher application value, VI can be used as an effective indicator to determine the disease activity.

OBJECTIVETo investigate the Toxoplasma gondii (TOX) infection in males with sterility and the effect of the infection on the reproductive function of males.

METHODSEnzyme linked immunoabsorbent assay (ELISA) was used to detect TOX-CAg, TOX-IgG and TOX-IgM in the peripheral blood of male patients with sterility.

RESULTSAmong 100 cases of male sterility, 7 were TOX-IgG positive (7%), 16 TOX-IgM positive (16%) and 13 TOX-CAg positive (13%). Among 100 normal males, 7 were TOX-IgG positive (7%), 3 TOX-IgM positive (3%) and 1 TOX-CAg positive (1%).

CONCLUSIONTOX infection may affect the fertility of males and cause male sterility. For this reason, males should prevent themselves from TOX infection.

Adult ; Animals ; Antibodies, Protozoan ; blood ; Antigens, Protozoan ; blood ; China ; epidemiology ; Enzyme-Linked Immunosorbent Assay ; Humans ; Immunoglobulin G ; blood ; Immunoglobulin M ; blood ; Infertility, Male ; epidemiology ; parasitology ; Male ; Toxoplasma ; immunology ; Toxoplasmosis ; complications ; epidemiology

Objective To explore the role of kidney interstitial dendritic cells in irnmunodissonance moechanism in mice with multiple organ dysfunction syndrome(MODS).Method The model of MODS wasmade by injecting zymosan into the peritoneal caiecty of C57BL/6 miee,and the mice were randomly divided into 5 groups,namely,normal,3～6 hours,12～48 hours,5～7 days,10～12 days after administrating zymosan. Pathological changes of kidney interstitial dendritic cells were observed by transmission electronic microscopes. Specific sudaee markers CD205,CD11e,CDSO,MHCⅡmolecules I-A~b,CD4~+ and CD8~+T lymphocyte subgroups in peripheral blood were detected by immunohistochemistry and flow cytomctry.Results In acute injury stage,in comparison with normal group,interstitial dendritic cells had a continuous proliferation with high expression of CD80 and I-A~b(P

Response Surface Methodology was applied to optimize the culture components for lipopeptide production by Bacillus natto TK-1. In the first step, two level factorial design of Plackett-Burman was used to evaluate the influence of six related factors. It showed that three factors playing the important roles in the medium, including peptone, yeast extract powder and CaCl_2. The path of steepest ascent was used to approach the optimal region of the fermentation conditions subsequently. In the third step, the concentrations of those three main factors were further optimized by using Box-Behnken and Response Surface Analysis. By solving the quadratic regression model equation, the optimal concentrations of the variables were determined as: peptone 1.73%, yeast extract powder 0.063 %, CaCl_2 1.385?10-4mol/L. Under the optimal culture conditions, the diameter of haemolysis zone increased 29.3 % than before. HPLC analysis showed the precise production of lipopeptide was 30.2% higher than preliminary culture. Furthermore, at three batches cultivation, the experiment values under the optimal conditions agreed with the predictive values. It showed that Response Surface Methodology was proper and a good choice for optimization.

Fermentation for Eicosapentaenoic Acid(EPA) production by Nitzschia laevis at various temperature between 10℃ and 30℃ was investigated and the dynamics characteristics during fermentation process were also analyzed.Based on the results,a varying temperature nursing method of two stage control strategy is proposed:During the first stage,which comprises the delay phase and the initial index phase,the temperature is maintained at 25℃;then the temperature is shifted to 20℃ and kept up till the end of the fermentation process.By this method,a EPA content of 6.0% and a yield of 291.60 mg/L have been gained.These are 24.07% and 18.81% higher than that of fixed temperature(25℃) fermentation,respectively.

The paper is about the systematic studies of biological characteristics of 15 stains rhizobia isolated purified from Acacia confusa grew in Guangxi karst environment.The results showed that there were typical characteristics of rhizobia.there were negative reaction about use of 3-ketolactose and beef extract peptone nutrient agar medium,and positive reaction about use of starch and citrate medium,and produce acid in reaction of BTB and litmus milk medium,(NH4)2HPO4 was used as nitrogen sources and both four monosaccharides and three disaccharides could be utilized as carbon sources in 15 strains rhizobia isolated Acacia confuse.Among the 15 strains for the tests,11 strains could deoxidize the nitrate of medium into nitrite,14 strains could grow well on NaCl solution concentration 3.0 %～4.0 %,14 strains could grow at 39℃,13 strains may grow on highest pH12 and 4 strains on lowest pH4 cultrue medium.15 strains can grow in 10% and 11 strains in 10%～30% of CaCO3 solution concentration.

Objective To investigate the difference between the blood pressure readings between sitting and supine position,and to study the factors that associated with the sitting-supine blood pressure difference in patient with diabetes.Methods We measured the sitting blood pressure first then followed by the supine pressure in 356 diabetic patients,using a standard mercury sphygmomanometer.Patient's body weight,height and blood glucose levels were also measured.Results SBP and DBP were significantly higher in the supine position than in sitting position in diabetic patients(by 3.5?7.6/1.5?4.9 mm Hg,P