کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5517932 1401040 2017 3 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
An examination of endoparasites and fecal testosterone levels in flying squirrels (Glaucomys spp.) using high performance liquid chromatography-ultra-violet (HPLC-UV)
کلمات کلیدی
Flying squirrels; Immuno-competence hypothesis; Parasites; Strongyloides robustus; Testosterone; Fecal extraction; High-performance liquid chromatography-ultraviolet spectroscopy;
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
An examination of endoparasites and fecal testosterone levels in flying squirrels (Glaucomys spp.) using high performance liquid chromatography-ultra-violet (HPLC-UV)
چکیده انگلیسی

•Three taxa of intestinal parasites in flying squirrels (Glaucomys spp.) reported.•Testosterone determined by high-performance liquid chromatography UV spectroscopy.•Testosterone highest in flying squirrels infected with Strongyloides robustus.•Link between parasitism and testosterone in wildlife needs further exploration.

The immuno-competence hypothesis proposes that higher levels of testosterone increases the susceptibility to parasitism. Here we examined the testosterone levels in two species of flying squirrels (Glaucomys): one known to regularly host a nematode species (Strongyloides robustus) without ill effects (G. volans) and a closely related species that is considered negatively affected by the parasite. We quantified fecal testosterone levels in northern and southern flying squirrels (G. sabrinus, G. volans) with high-performance liquid chromatography-ultraviolet spectroscopy (HPLC-UV), and compared levels to endoparasites detected in individual squirrels. Qualitatively, we found highest levels of testosterone in male northern flying squirrels infected with Strongyloides robustus. This analytical approach represents an alternative and equally reliable method to using enzyme-linked immunosorbent assay (ELISA), for detecting and quantifying fecal testosterone levels.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal for Parasitology: Parasites and Wildlife - Volume 6, Issue 2, August 2017, Pages 135-137open access
نویسندگان
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