China ; Chronic Disease ; Humans ; Phenotype ; Rhinitis ; genetics ; immunology ; Sinusitis ; genetics ; immunology

Asthma ; immunology ; Humans ; Rhinitis ; immunology

Allergens ; immunology ; Child ; Desensitization, Immunologic ; Humans ; Rhinitis, Allergic, Perennial ; immunology ; therapy ; Treatment Outcome

Asthma ; immunology ; Congresses as Topic ; Humans ; Hypersensitivity ; immunology ; United States

Objective:To constract a method of measurement microamount hydrogen sulfide (H_2S) using sensitive sulphur electrode. Methods: According to the physical and chemical characters of H_2S, H_2S, which in the fluids by mean of physical dissolve and chemical shape, is turned to sulphur ion (S 2-) by chemical responses. After the microamount of S 2- was measured by sensitive sulphur electrode, and the concentration of H_2S was converted, a method was constructed to measure the H_2S. It was used to analyze the concentrations of H_2S of plasma in rats and humans, the endogenous concentration of H_2S of cardiovascular tissue in rats, and CSE activity of cardiovascular tissues and cells. Results: The exponential regression of S 2- in the extent including 1 to 80 ?mol/L was found using sensitive sulphur electrod. The H_2S levels of plasma in male and female rats were 40?4 and 41?5 ?mol/L, respectively, and significant difference was not found; those in venous blood plasma of men and women were 33?4 ?mol/L and 35?5 ?mol/L respectively, without significant difference. There were not significant differences in the aortic endogenous levels of H_2S (24?6 and 25?5 nmol/mg pro) and myocardial levels (19?4 and 19?6 nmol/mg protein) between female and male rats. There were no different results of CSE activity in aortal tissue using sensitive sulphur electrode or traditional methods, however, the CSE activity of vascular smooth muscle cells could be accurately measured using sensitive sulphur electrode, which was difficult in using traditional method. Conclusion: The sensitive sulphur electrode assay was fit for the analysis of CSE/H_2S pathway in cardiovascular research.

Objective: To investigate alteration and cross link of the aortic intima and platelet endogenous L-Arg/NOS/NO pathway induced by water immersion restraint (WIR) stress. Methods: After 7 h of WIR stress, the aortic intima was isolated and prepared the platelet, then NO_2- production released from aortic intima and platelet was measured with Greiss regent, NOS activity and L-arginine transport activity were detected by isotope tracer method. Results: After 7 h of WIR stress, the levels of NO_2- from platelet and aortic intima obviously decreased by 57% and 46% respectively as comparied with the control rats (P

Adenocarcinoma ; genetics ; metabolism ; Adolescent ; Adult ; Aged ; Biomarkers, Tumor ; Child ; Child, Preschool ; DNA-Binding Proteins ; biosynthesis ; genetics ; Female ; Gastric Mucosa ; metabolism ; Genes, Tumor Suppressor ; Humans ; Male ; Middle Aged ; Nuclear Proteins ; biosynthesis ; genetics ; PTEN Phosphohydrolase ; biosynthesis ; genetics ; RNA, Messenger ; biosynthesis ; genetics ; Stomach Diseases ; genetics ; metabolism ; Stomach Neoplasms ; genetics ; metabolism ; Tumor Protein p73 ; Tumor Suppressor Proteins

Runt-related transcription factor 2 (Runx2) is a nuclear transcription factor of PEBP2/CBF superfamilies,and can regulate matrix metalloproteinase (MMP),osteopontin (OPN) and bone sialoprotein (BSP) which are associated with the metastasis of tumors including breast cancer and prostate cancer.In these cancers,the expression of Runx2 is highly up-regulated,which is closely correlated with the cell transformation and tumor progress.Lots of studies have demonstrated that the function of Runx2 is involved in several signal pathways activation,which can promote the early metastasis of malignant tumors.Therefore,the treatment targeting to Runx2 may be a new clinically choice to block the metastasis of tumors in the future.

Aim To study the inhibitory effect of gast-rodin (GSTD) on oleic acid (OA)-induced fat accu-mulation in HL-7702 cells and explore possible cellular signaling pathways. Methods The MTT method was used to study the impact of GSTD on cell viability in HL-7702 cells. Cellular steatosis was induced by 1 mmol·L-1 of OA administration for 24 h, and differ-ent concentrations of GSTD were added at the same time. Oil red O ( ORO) staining was used to determine fat accumulation in cells, and intracellular triglyceride ( TG) contents were assayed. Western blot was used to determine the phosphorylation levels of AMPKα and ACC in cells after GSTD administration. Compound C was used to treat the cells in order to study its influ-ence on the efficacies of GSTD. Results GSTD had no obvious toxicity in HL-7702 cells when its concen-tration was≤3 386. 5 μmol · L-1 . After 24 h of OA administration, there were large amounts of lipid drop-lets accumulated in HL-7702 cells, and intracellular TG contents greatly increased as well. However, when 169. 3 or 338. 7 μmol · L-1 of GSTD was added to-gether with OA, fat accumulation in cells was greatly inhibited, and intracellular TG contents were reduced averagely by 35% and 43 . 6%, respectively ( P<0. 01 vs OA alone ) . After administration, GSTD could in-crease the levels of p-AMPKα and p-ACC in HL-7702 cells time and dose dependently. Compound C could completely abolish the stimulating activity of GSTD on AMPK pathway and block its reducing effect on hepatic TG accumulation. Conclusions GSTD greatly inhibits OA-induced fat accumulation and reduces intracellular TG contents in HL-7702 cells;the efficacy of GSTD is dependent on the activation of cellular AMPK pathway.

Objective To study regularity of atherosclerosic development and distribution in extracoronary arteries and its relation to risk factors in high risk group of atherosclerosis. Methods 　 Extracoronary atherosclerosis was investigated with ultrasound in subjects exposed to multiple cardiovascular diseases and undergone stepwise multiple regress analysis with cardiovascular risk factors. Results 　 Incidence of carotid, subclaviscular , abdominal aortic , femoral and common iliac artery atherosclerosis was 73%, 63%, 56%,54% and 51% respectively. The simple atherosclerostic plaque is the most common of three types(P<0.01); The incidence and IMT of femoral, abdominal aortic and iliac artery atherosclerosis were significantly higher in coronary artery disease (CAD) than those in the other groups(P<0.01);The incidence and IMT of carotid artery atherosclerosis in subjects with stroke were significantly higher than those in other groups;The age,systolic blood pressure and triglyceride were significantly associated with extracoronary atherosclerosis. Conclusion 　In descending order of incidence of extracoronary atherosclerosis,these were carotid,subclavicular,abdominal aortic,femoral and common iliac artery. The atherosclerosis of femoral,iliac and abodominal arteries was closely associated with CAD,and the atherosclerosis of carotid artery was significantly associated with stroke.