Investigation on protein adduct produced by alternatives to ozone-depleting substances and susceptibility genes and establishment of new method for risk assessment.

消耗臭氧层物质替代品与易感基因产生的蛋白质加合物的调查及风险评估新方法的建立。

• 批准号: 16390169
• 负责人: ICHIHARA Gaku
• 金额: $ 9.6万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16390169/
• 关键词: 1-bromopropane; protein adduct; susceptibility gene; dose-response relationship; neurotoxicity; microarray; mass spectrometry; risk assessment; フロン代替物質; 感受性; 曝露指標; 遺伝子発現; GST; LC-MS; グロビン蛋白; F344; Wistar

1. The neuronal effects of 1-bromopropane in two inbred rat strains WNA (Wistar Nagoya) and F344 were compared to find genes related with susceptibility to 1-bromopropane exposure. Oligonucleotide microarray was applied to detect the difference of gene expression in two strains. The results showed that F344 is more susceptible than WNA in neuronal effects. The microarray study showed that glutathione S-transferase and epoxy hydrolase's expression were enhanced thorough two strains. Neuronal regeneration related gene was enhanced in WNA but suppressed in F344, showing a contrasting effect on two strains. Further investigation is needed to understand how this gene is related with the difference of susceptibility in two strains.2. Metabolite N-acetyl S-propyl cysteine was detected with GC-MS and LC-MS/MS in the urine obtained from inhalation experiments using rats. This method is also applied to human samples successfully.3. Protein adduct S-propyl cysteine was detected with LC-MS/MS in globin obtained from rats exposed to 1-bromopropane. This method is applied to human samples successfully.4. Investigation on polymorphism of glutathione S-transferase clarify the dose responserelationship in the workers exposed to 1-bromopropane.

1.比较了1-溴丙烷对WNA(Wistar Nagoya)和F344两个近交系大鼠的神经元效应，以寻找与1-溴丙烷易感性相关的基因。应用寡核苷酸芯片检测两株菌基因表达的差异。结果表明，在神经元效应方面，F344比WNA更敏感。基因芯片研究表明，谷胱甘肽S转移酶和环氧水解酶的表达均得到增强。神经细胞再生相关基因在WNA中表达增强，而在F344中被抑制，两种菌株的作用效果相反。需要进一步的研究来了解该基因如何与两个菌株的易感性差异有关。采用GC-MS和LC-MS/MS检测大鼠吸入实验尿液中的代谢物N-乙酰-S-丙基半胱氨酸。该方法也成功地应用于人体样本。用LC-MS/MS法检测1-溴丙烷染毒大鼠珠蛋白中的蛋白加合物S-丙基半胱氨酸。将该方法成功地应用于人体样本。谷胱甘肽S转移酶基因多态性研究阐明了1-溴丙烷接触者的剂量效应关系。

项目成果

A survey on exposure level, health status, and biomarkers in workers exposed to 1-bromopropane

• DOI: 10.1002/ajim.10320
• 发表时间: 2004-01-01
• 期刊: AMERICAN JOURNAL OF INDUSTRIAL MEDICINE
• 影响因子: 3.5
• 作者: Ichihara, G;Li, WH;Takeuchi, Y
• 通讯作者: Takeuchi, Y

Investigation of Toxicity through Human Cases and Animal Experiments-study of bromopropanes-

通过人体案例和动物实验研究毒性-溴丙烷的研究-

• 发表时间: 2005
• 期刊: Japanese Journal of Hygiene 60
• 作者: Ryozo Matsuda;Tokuko Munesue (eds.);Ichihara S. et al.;Ichihara S. et al.;Ito Y.et al.;Okamura A. et al.;Ichihara G. et al.
• 通讯作者: Ichihara G. et al.

A role for the aryl hydrocarbon receptor in regulation of ischemia-induced angiogenesis

• DOI: 10.1161/atvbaha.106.138701
• 发表时间: 2007-06-01
• 期刊: ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
• 影响因子: 8.7
• 作者: Ichihara, Sahoko;Yamada, Yoshiji;Murohara, Toyoaki
• 通讯作者: Murohara, Toyoaki

A survey of semen indices in insecticide sprayers

• DOI: 10.1539/joh.46.109
• 发表时间: 2004-03-01
• 期刊: JOURNAL OF OCCUPATIONAL HEALTH
• 影响因子: 3
• 作者: Kamijima, M;Hibi, H;Takeuchi, Y
• 通讯作者: Takeuchi, Y

Pravastatin increases survival and suppresses an increase in myocardial matrix metalloproteinase activity in a rat model of heart failure

• DOI: 10.1016/j.cardiores.2005.08.001
• 发表时间: 2006-02-15
• 期刊: CARDIOVASCULAR RESEARCH
• 影响因子: 10.8
• 作者: Ichihara, S;Noda, A;Yokota, M
• 通讯作者: Yokota, M