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| 1 | 美洲大蠊有效成分的提取及药理活性研究进展显示文摘美洲大蠊(Periplaneta americana)俗称蟑螂,原产于南美洲,是世界性卫生害虫,但其体内含有多种生物活性成分,药理作用发展日益造福人类健康。美洲大蠊最早应用于《神农本草经》,具有显著的组织修复、抗肿瘤、增强免疫及保护肝功能等作用。美洲大蠊提取物的提取方法多样,但提取到的活性成分尚不完全清楚,其发挥作用的分子机制更是有待研究。根据美洲大蠊提取物不同溶剂类型及其化学活性成分对相关研究进行系统综述,为进一步研究美洲大蠊活性成分的作用机制提供理论基础。 | 王钦 刘克娜 孔彩华 张成桂 隋世燕 | 2021 | 中华中医药学刊2021，39，8： | 11 |
| 2 | New insight into foregut functions of xenobiotic detoxification in the cockroach Periplaneta americana显示文摘The physiological functions of insect foregut,especially in xenobiotic detox ification,are scarcely reported because of unimportance in appearance and insufficient molecular information.The cockroach Periplaneta americana,an entomological model organism,provides perfect material to study physiological functions of foregut tissue due to its architectuxal feature.Through Illumina sequencing of foregut tissue from P.amer icana individuals (control)or insects treated with cycloxaprid,as a novel neonicotinoid insecticide,54 193 166 clean reads were obtained and further assembled into 53 853 unigenes with an average length of 366 bp.Furthermore,the number of unigenes involved in xenobiofic detoxification was analyzed,mainly including 70 cytochrome P450s,12 glutathione S-transferases (GSTs),seven carboxylesterases (CarEs)and seven adenosine triphosphate-binding cassette (ABC)transporters.Compared to control,the expression of 22 xenobiotic detoxification unigenes was up-regulated after cycloxaprid application, mainly containing 18 P450s,one GST,two CarEs and one ABC adenosine triphosphate transporter,indicating that the oxidation-reduction was the major reactive process to cy cloxaprid application.Through quantitative real-time polymerase chitin reaction analysis, the expression of selected unigenes (six P450s,one GST and one CarE.)was up-regulated at least two-fold following cycloxaprid treatment,and was generally in agreement with transcriptome data.Compared to the previous midgut transcriptome of P.americana,it looks like the expressive abundance of the xenobiotic detoxification unigenes might be important factors to the detoxifying fimctional differences between foregut and midgut.In conclusion,insect foregut would also play important roles in the physiological processes related to xenobiotic detoxification. | Jian-Hua Zhang Song Zhang Yuan-Xue Yang Yi-Xi Zhang Ze-Wen Liu | 2018 | Insect Science2018，25，6： | 0 |
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