目的探讨白细胞介素-6(interleukin 6,IL-6)-572、IL-6-174基因多态性与高血压肾损害及贝那普利治疗反应的相关性。方法入选284例初次诊断高血压病的患者,根据24h尿蛋白排泄率(urinary albumin excretion,UAER)水平分为高血压组(UAER<...目的探讨白细胞介素-6(interleukin 6,IL-6)-572、IL-6-174基因多态性与高血压肾损害及贝那普利治疗反应的相关性。方法入选284例初次诊断高血压病的患者,根据24h尿蛋白排泄率(urinary albumin excretion,UAER)水平分为高血压组(UAER<20μg/min)和高血压肾损害组(UAER≥20μg/min)。检测IL-6水平及IL-6-572、IL-6-174基因多态性。然后用贝那普利干预,观察具备IL-6-572、IL-6-174的不同基因型的患者的治疗反应。结果高血压肾损害组中,IL-6-572的CG基因型、IL-6-174的GG基因型比例最高。贝那普利治疗对具有IL-6-572GG基因型、IL-6-174CC基因型的高血压肾损害患者治疗效果最佳。结论IL-6-572、IL-6-174基因多态性与高血压肾损害及其对贝那普利治疗的反应相关。展开更多
The Eu, Tb co-doped SiO2 matrix tricolor fluorescence system was prepared by sol-gel technique. Red emission at 618 nm, green emission at 543 nm and blue emission at 350―500 nm were observed in the PL spectra of the ...The Eu, Tb co-doped SiO2 matrix tricolor fluorescence system was prepared by sol-gel technique. Red emission at 618 nm, green emission at 543 nm and blue emission at 350―500 nm were observed in the PL spectra of the sample, indicating that Eu3+, Eu2+ and Tb3+ ions coexisted in the matrix. In the co-doped sample, the blue emission of Eu2+ was much stronger than that of the sample single doped with Eu, which implied that the electron transfer between Eu3+ and Tb3+ maybe happened in the SiO2 matrix. The influences of the annealing temperature and Tb concentration on the PL spectra of the samples were investigated. The optimal doped concentration of Tb was determined to be 0.2% and the optimal annealing temperature 850℃. Annealed at 600℃, Tb3+ had a sensitizing effect on Eu3+ in the SiO2 matrix, and the emission intensity of Eu3+ in the Eu, Tb co-doped sample was more than four times that of the single doped sample, which could be attributed to the energy transfer from Tb3+ to Eu3+.展开更多
A Eu, Dy co-doped SiO2 matrix, white emitting phosphor was prepared by the sol-gel technique. Strong red, green and blue emissions located at 618 nm, 573 nm and 400-550 nm were observed under UV laser excitation at ro...A Eu, Dy co-doped SiO2 matrix, white emitting phosphor was prepared by the sol-gel technique. Strong red, green and blue emissions located at 618 nm, 573 nm and 400-550 nm were observed under UV laser excitation at room temperature. Such techniques as FT-IR and TGA-DSC were used to measure the microstructure of the luminescent material. The influence of the preparation techniques on the luminescence property of the Eu, Dy co-doped SiO2 matrix, such as anneal temperature, anneal time, dried atmosphere and the components of the matrix, was systematically studied, and the luminescence mechanism was interpreted. The red emission is the strongest when annealed at 750 ℃ . However, blue emission appears when annealed at 700 ℃ and is the intensest at 900℃ . For the samples dried in vacuum, Eu3+ is more easily deoxidized to Eu2+ at lower temperatures, because the samples dried in the air compared with that dried in vacuum need higher temperature to form network structures. Only the SA and SAB matrix annealed at 850 ℃ had blue emission in the four matrices (SA, SAB, SB, S) xerogel and the emission in the SAB matrix was stronger than that in the SA matrix. This may be due to the eutectic phase formed by the oxide boron, alkaline oxide and alumina in the SAB matrix, which constructs network structures and stabilizes the emission center and enhances the blue emission.展开更多
文摘目的探讨白细胞介素-6(interleukin 6,IL-6)-572、IL-6-174基因多态性与高血压肾损害及贝那普利治疗反应的相关性。方法入选284例初次诊断高血压病的患者,根据24h尿蛋白排泄率(urinary albumin excretion,UAER)水平分为高血压组(UAER<20μg/min)和高血压肾损害组(UAER≥20μg/min)。检测IL-6水平及IL-6-572、IL-6-174基因多态性。然后用贝那普利干预,观察具备IL-6-572、IL-6-174的不同基因型的患者的治疗反应。结果高血压肾损害组中,IL-6-572的CG基因型、IL-6-174的GG基因型比例最高。贝那普利治疗对具有IL-6-572GG基因型、IL-6-174CC基因型的高血压肾损害患者治疗效果最佳。结论IL-6-572、IL-6-174基因多态性与高血压肾损害及其对贝那普利治疗的反应相关。
基金Supported by the National Natural Science Foundation of Director (Grant No. 10247007)Natural Science Foundation of Shanxi Province (Grant No. 2003F22)the Science Technology Department of Shanxi Province (Grant No. 2004k05-G26)
文摘The Eu, Tb co-doped SiO2 matrix tricolor fluorescence system was prepared by sol-gel technique. Red emission at 618 nm, green emission at 543 nm and blue emission at 350―500 nm were observed in the PL spectra of the sample, indicating that Eu3+, Eu2+ and Tb3+ ions coexisted in the matrix. In the co-doped sample, the blue emission of Eu2+ was much stronger than that of the sample single doped with Eu, which implied that the electron transfer between Eu3+ and Tb3+ maybe happened in the SiO2 matrix. The influences of the annealing temperature and Tb concentration on the PL spectra of the samples were investigated. The optimal doped concentration of Tb was determined to be 0.2% and the optimal annealing temperature 850℃. Annealed at 600℃, Tb3+ had a sensitizing effect on Eu3+ in the SiO2 matrix, and the emission intensity of Eu3+ in the Eu, Tb co-doped sample was more than four times that of the single doped sample, which could be attributed to the energy transfer from Tb3+ to Eu3+.
基金the National Natural Science Foundation of China (Grant No. 20876125)the Technology Research Project of Higher Education Office in Shaanxi Province (Grant No. 08JK451)
文摘A Eu, Dy co-doped SiO2 matrix, white emitting phosphor was prepared by the sol-gel technique. Strong red, green and blue emissions located at 618 nm, 573 nm and 400-550 nm were observed under UV laser excitation at room temperature. Such techniques as FT-IR and TGA-DSC were used to measure the microstructure of the luminescent material. The influence of the preparation techniques on the luminescence property of the Eu, Dy co-doped SiO2 matrix, such as anneal temperature, anneal time, dried atmosphere and the components of the matrix, was systematically studied, and the luminescence mechanism was interpreted. The red emission is the strongest when annealed at 750 ℃ . However, blue emission appears when annealed at 700 ℃ and is the intensest at 900℃ . For the samples dried in vacuum, Eu3+ is more easily deoxidized to Eu2+ at lower temperatures, because the samples dried in the air compared with that dried in vacuum need higher temperature to form network structures. Only the SA and SAB matrix annealed at 850 ℃ had blue emission in the four matrices (SA, SAB, SB, S) xerogel and the emission in the SAB matrix was stronger than that in the SA matrix. This may be due to the eutectic phase formed by the oxide boron, alkaline oxide and alumina in the SAB matrix, which constructs network structures and stabilizes the emission center and enhances the blue emission.
