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Evaluation of benzaldehyde derivatives from Morinda officinalis as anti-mite agents with dual function as acaricide and mite indicator

机译:评价巴戟天的苯甲醛衍生物作为杀螨剂并具有杀螨剂和杀螨剂双重功能

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摘要

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by SFTS virus with 12–30% fatality rate. Despite severity of the disease, any medication or treatment for SFTS has not developed yet. One approach to prevent SFTS spreading is to control the arthropod vector carrying SFTS virus. We report that 2–methylbenzaldehyde analogues from M. officinalis have a dual function as acaricide against Dermatophagoides spp. and Haemaphysalis longicornis and indicator (color change) against Dermatophagoides spp. Based on the LD50 values, 2,4,5–trimethylbenzaldehyde (0.21, 0.19, and 0.68 μg/cm3) had the highest fumigant activity against D. farinae, D. pteronyssinus, and H. longicornis, followed by 2,3–dimethylbenzaldehyde (0.46, 0.44, and 0.79 μg/cm3), 2,4–dimethylbenzaldehyde (0.66, 0.59, and 0.95 μg/cm3), 2,5–dimethylbenzaldehyde (0.65, 0.68, and 0.88 μg/cm3), 2–methylbenzaldehyde (0.95, 0.87, and 1.28 μg/cm3), 3–methylbenzaldehyde (0.99, 0.93, and 1.38 μg/cm3), 4–methylbenzaldehyde (1.17, 1.15, and 3.67 μg/cm3), and M. officinalis oil (7.05, 7.00, and 19.70 μg/cm3). Furthermore, color alteration of Dermatophagoides spp. was shown to be induced, from colorless to dark brown, by the treatment of 2,3–dihydroxybenzaldehyde. These finding indicated that 2–methylbenzaldehyde analogues could be developed as functional agent associated with the arthropod vector of SFTS virus and allergen.
机译:血小板减少症候群(SFTS)重症是由SFTS病毒引起的新兴传染病,死亡率为12%至30%。尽管疾病严重,但尚未开发出用于SFTS的任何药物或治疗方法。防止SFTS传播的一种方法是控制携带SFTS病毒的节肢动物载体。我们报告说,来自M. officinalis的2-甲基苯甲醛类似物具有双重作用,可作为对抗Dermatophagoides spp的杀螨剂。以及针对皮肤癣菌的血红蛋白和指示剂(颜色变化)。根据LD50值,2,4,5-三甲基苯甲醛(0.21、0.19和0.68μg/ cm 3 )对D. farinae,D。pteronyssinus和H. longicornis的熏蒸活性最高。 ,然后是2,3-二甲基苯甲醛(0.46、0.44和0.79μg/ cm 3 ),2,4-二甲基苯甲醛(0.66、0.59和0.95μg/ cm 3 >),2,5-二甲基苯甲醛(0.65、0.68和0.88μg/ cm 3 ),2-甲基苯甲醛(0.95、0.87和1.28μg/ cm 3 ) ,3-甲基苯甲醛(0.99、0.93和1.38μg/ cm 3 ),4-甲基苯甲醛(1.17、1.15和3.67μg/ cm 3 )和M。药用油(7.05、7.00和19.70μg/ cm 3 )。此外,皮肤癣菌的颜色改变。通过2,3-二羟基苯甲醛的处理被证明是从无色到深棕色的。这些发现表明,2-甲基苯甲醛类似物可以作为与SFTS病毒和过敏原的节肢动物载体相关的功能剂而开发。

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