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| 1 | A proteomic analysis of rice seedlings responding to 1,2,4-trichlorobenzene stress显示文摘回答 to1,2,4-trichlorobenzene (TCB ) 的根和叶子强调的米饭(Oryza sativa L.) 的 proteomic 分析被二维的胶化电气泳动执行,质量度谱(MS ) ,并且蛋白质数据库分析。结果证明 5 mg/L TCB 应力在米饭根和叶子在全球 proteome 上有重要效果。范畴的分析和 TCB 的功能强调可诱导的蛋白质证明回答的不同类型在米饭根和叶子被生产,当稻秧暴露于 5mg/L TCB 应力时。大多数回答为保卫 TCB 应力的损坏的米饭是必要的。这些回答包括有毒的物质,致病相关的蛋白质的表示,细胞壁物质的合成和第二等的混合物的解毒,蛋白质的规定和氨基酸新陈代谢,蛋氨酸的激活抢救小径,并且也包括渗透的规定和植物激素新陈代谢。比较 TCB 压力在二栽培变种,β-葡萄糖苷酶和致病相关的蛋白质之间的可诱导的蛋白质家庭 10 蛋白质被 TCB 应力特别地在米饭栽培变种( Oryza sativa L.)的根导致 Aizaizhan ,并且谷胱甘肽 S-transferase 和 aci-reductone dioxygenase 4 在米饭栽培变种 Shanyou 63 的根被导致。这可以是为比 Aizaizhan 有更高的公差到 TCB 应力的 Shanyou 63 的重要机制之一。 | GE Cailin WAN Dingzhen WANG Zegang DING Yan WANG Yulong SHANG Qi MA Fai LUO Shishi | 2008 | Journal of Environmental Sciences2008，20，3： | 7 |
| 2 | Characterization of a smog chamber for studying formation of gas-phase products and secondary organic aerosol显示文摘Smog chambers provide a potent approach to explore the secondary organic aerosol formation under varied conditions.This study describes the construction and characterization of a new smog chamber facility for studying the formation mechanisms of gas-phase products and secondary organic aerosol from the photooxidation of volatile organic compounds.The chamber is a 5.4 m^(3) Fluorinated Ethylene Propylene(FEP)Teflon reactor with the potential to perform photooxidation experiments at controlled temperature and relative humidity.Detailed characterizations were conducted for evaluation of stability of environmental parameters,mixing time,background contamination,light intensity,and wall losses of gases and particles.The photolysis rate of NO_(2)(J_(NO2))ranged from(1.02-3.32)×10^(-3)sec^(-1),comparable to the average J_(NO2)in ambient environment.The wall loss rates for NO,NO_(2),and O_(3)were 0.47×10^(-4),0.37×10^(-4),and 1.17×10^(-4)min^(-1),while wall loss of toluene was obsoletely found in a 6 hr test.The particle number wall loss rates are(0.01-2.46)×10^(-3)min^(-1)for 40-350 nm with an average lifetime of more than one day.A series of toluene photooxidation experiments were carried out in absence of NO_xunder dry conditions.The results of the simulation experiments demonstrated that the chamber is well designed to simulate photolysis progress in the atmosphere. | Qi Yuan Zhuozhi Zhang Meng Wang Kin Fai Ho Tao Wang Shuncheng Lee | 2024 | Journal of Environmental Sciences2024，，2： | 0 |
| 3 | Diazoxide preconditioning antagonizes cytotoxicity induced by epileptic seizures显示文摘Diazoxide, an activator of mitochondrial ATP-sensitive potassium channels, can protect neurons and astrocytes against oxidative stress and apoptosis. In this study, we established a cellular model of epilepsy by culturing hippocampal neurons in magnesium-free medium, and used this to investigate effects of diazoxide preconditioning on the expression of inwardly rectifying potassium channel (Kir) subunits of the ATP-sensitive potassium. We found that neuronal viability was significantly reduced in the epileptic cells, whereas it was enhanced by diazoxide preconditioning. Double immunofluorescence and western blot showed a significant increase in the expression of Kir6.1 and Kir6.2 in epileptic cells, especially at 72 hours after seizures. Diazoxide pretreatment completely reversed this effect at 24 hours after seizures. In addition, Kir6.1 expression was significantly upregulated compared with Kir6.2 in hippocampal neurons after seizures. These findings indicate that diazoxide pretreatment may counteract epileptiform discharge-induced cytotoxicity by suppressing the expression of Kir subunits. | Qingxi Fu Zhiqing Sun Jinling Zhang Naiyong Gao Faying Qi Fengyuan Che Guozhao Ma | 2013 | Neural Regeneration Research2013，8，11： | 0 |
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