Brucellosis ; complications ; Cytomegalovirus Infections ; complications ; Humans

In present study,comparisons were carried out to develop and improve in vitro mauration(IVM) systems of goat oocytes. Oocytes were cultured in TCM-199 supplemented with(1)10% sera (either estrous goat serum (EGS) or fetal bovine serum(FBS)) + 20 mg/L luteinizing hormone (LH) + 10 mg/L follicle stimulating hormone (FSH) + 1 mg/L estradiol (E2); (2)10% EGS with different gonadotropins(LH: FSH) at a concentration of 5 mg/L: 0.5 mg/L or at 20 mg/L: 10 mg/L with0. 075 IU/mL human menopausal gonadotropin(HMG),1 mg/L estradiol 17β; (3)10% EGS+ 0. 075 mg/L HMG+10-20 μg/EGF. The culture was also performed by M199 supplemented with 10% EGS+0. 075 mg/L HMG+ 10-20 μg/L EGF into ultra-filtrated water which was derived either from self-producing or from purchased for use. The oocytes were cultured at 38 ℃,5% CO2 in air for 24 h,and the meterphase Ⅱ stage oocytes were examined under dissecting microscope. The results showed that EGS was better than FBS in supporting goat oocyte IVM. An addition of HMG in M199 could improve oocyte maturation and induce a higher percentage of metaphase Ⅱ oocytes compared to gonadotropins. 10-20 μg/L EGF improved goat oocyte maturation but the influence was not significant. Fresh,high quality water was vital for oocyte IVM. In conclusion,under our conditions with IVM ,the best result in maturation of goat oocyte has been M199 supplemented with 10% EGS+0.075 IU/mL HMG+10-20 μg/L EGF and prepared in fresh purified water.

BACKGROUND: Dysfunction of endothelial cells is independently associated with coronary atherosclerotic heart disease. Correlation of dysfunction of endothelial cells to restenosis after stent implantation is not yet clearly determined.OBJECTIVE: To evaluate the correlation of vascular endothelial dysfunction to restenosis after stent implantation. DESIGN, TIME AND SETTING: A case control study was performed at the Department of Cardiology and Department of Heart Ultrasound, Sichuan People's Hospital from March 2005 to January 2007.PARTICIPANTS: After review, coronary angiography showed that 11 patients who occurred restenosis at the lesion region after stent implantation were included in a restenosis group, and an additional 15 patients who did not develop in-stent restenosis were included in a control group. Patients in the following conditions were excluded: over 70 years old, histories of long-term smoking, diabetes mellitus, multivessel disease, long coronary lesion and chronic total occlusion, heart failure (Killip's class Ⅲ or above), severe hepatic and/or renal insufficiency.METHODS: High-resolution ultrasound was used to assess the percentage of flow-mediated dilatation of brachial artery. Differences in endothelial function were compared between both groups.MAIN OUTCOME MEASURES: Ultrasound parameter of the brachial artery in both groups; Partial correlation analysis on control variable including sex, age, blood lipid level, diseased region and stent type.RESULTS: No significant difference was found in basic diameter of brachial artery in both groups. During reactive hyperemia, inner diameter and its absolute variation of brachial artery were smaller in the restenosis group than in the control group (P<0.01). The percentage of brachial artery flow-mediated dilatation was lower in the restenosis group compared with the control group (P=0.013). The partial correlation coefficient between the percentage of flow-mediated dilatation of brachial artery and in-stent restenosis was 0.47 (P=0.04).CONCLUSION: The endothelial dysfunction significantly decreases in patients with restenosis compared with controls following stent implantation. There is a correlation between endothelial dysfunction and restenosis.

Photoperiod plays an important role in transformation from vegetative growth to reproductive growth in plants. CONSTANS (CO), as a unique gene in the photoperiod pathway, responds to changes of day length to initiate flowering in the plant. In this study, the expression level of FaCONSTANS (FaCO) gene under long-day, short-day, continuous light and continuous darkness conditions was analyzed by real-time quantitative PCR. We constructed the over-expression vector p1300-FaCO and infected into Arabidopsis thaliana by Agrobacterium-mediated method. We constructed the silencing vector p1300-FaCO-RNAi and infected into Festuca arundinacea by Agrobacterium-mediated method. The expression of FaCO gene was regulated by photoperiod. The over-expression of FaCO promoted flowering in wild type of Arabidopsis thaliana under long day condition and rescued the late flowering phenotype in co-2 mutant of Arabidopsis thaliana. Silencing FaCO gene in Festuca arundinacea by RNAi showed late-flowering phenotype or always kept in the vegetative growth stage. Our understanding the function of FaCO in flowering regulation will help further understand biological function of this gene in Festuca arundinacea.
Arabidopsis/metabolism* ; Arabidopsis Proteins/genetics* ; Festuca/metabolism* ; Flowers/genetics* ; Gene Expression Regulation, Plant ; Photoperiod