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Preliminary identification and quantification of steroid hormones in the red palm weevil, Rhynchophorus ferrugineus

机译:红掌象鼻象鼻线虫中甾体激素的初步鉴定和定量

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摘要

In the present preliminary study, we used a gas chromatography–mass spectroscopy (GC-MS) method to identify and quantify steroid hormones, their precursors and metabolites in whole body of red palm weevil (RPW) R. ferrugineus adults. We identified a total of seven steroids by single ion monitoring mode (SIM) analysis and compared them to the National Institute of Standards and Technology (NIST) library. The steroids include: dehydroepiandrosterone (DHEA), estrone, estradiol-17β, testosterone, progesterone, cortisol and cholesterol, whereas pregnenolone, pregnan-20-one-17-hydroxy and corticosterone were not detected. This study shows that some invertebrate groups seem to use partially or totally comparable hormones to vertebrates and produce vertebrate-type steroids with functional roles. However, some steroids of the endocrine system of invertebrates are still lacking or yet to be identified in most phyla.
机译:在当前的初步研究中,我们使用气相色谱-质谱(GC-MS)方法鉴定和定量了红棕象鼻虫(RPW)铁锈红球菌成虫体内的类固醇激素,其前体和代谢产物。我们通过单离子监测模式(SIM)分析识别出总共7种类固醇,并将它们与美国国家标准技术研究院(NIST)库进行了比较。类固醇包括:脱氢表雄酮(DHEA),雌酮,雌二醇-17β,睾丸激素,孕酮,皮质醇和胆固醇,而未检测到孕烯醇酮,pregnan-20-one-17-羟基和皮质酮。这项研究表明,一些无脊椎动物群体似乎在部分或完全使用与脊椎动物相当的激素,并产生具有功能性作用的脊椎动物类固醇。但是,大多数门类中仍缺乏或尚未鉴定出一些无脊椎动物内分泌系统的类固醇。

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