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Gastrointestinal Elimination of Perfluorinated Compounds Using Cholestyramine and Chlorella pyrenoidosa

機(jī)譯：消膽胺和小球藻清除全氟化合物的胃腸道

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Background. While perfluorinated compounds (PFCs) are a family of commonly used synthetic compounds with many applications, some PFCs remain persistent within the human body due, in part, to enterohepatic recirculation and renal tubular reabsorption. With increasing recognition of potential harm to human health associated with PFC bioaccumulation, interventions to facilitate elimination of these toxicants are welcome in order to potentially preclude or overcome illness. Minimal research has been undertaken thus far on methods to accelerate human clearance of PFCs. Methods. To test for possible oral treatments to hasten PFC elimination, a group of individuals with elevated PFC levels was treated with cholestyramine (CSM) and, after a break, was subsequently treated with Chlorella pyrenoidosa (CP). Stool samples were collected from all participants (i) prior to any treatment, (ii) during treatment with CSM, and (iii) during treatment with CP. Results. With CSM treatment, significant levels of three distinct PFCs were found in all stools, while levels were mostly undetectable prior to treatment. Following treatment with oral CP, undetectable or very low levels of all PFCs were noted in each sample tested. Conclusion. CSM appears to facilitate elimination of some common PFCs and may have some role in the clinical management of patients with accrued PFCs.
機(jī)譯：背景。雖然全氟化化合物（PFC）是一類具有許多應(yīng)用的常用合成化合物，但某些PFC在人體中仍保持持久性，部分原因是由于腸肝再循環(huán)和腎小管重吸收。隨著人們越來越認(rèn)識到與PFC生物蓄積有關(guān)的對人體健康的潛在危害，歡迎采取干預(yù)措施以消除這些有毒物質(zhì)，以潛在地預(yù)防或克服疾病。迄今為止，關(guān)于加速人類清除PFC的方法的研究很少。方法。為了測試可能的口服治療以加速PFC消除，對一組PFC水平升高的個體進(jìn)行了膽甾胺（CSM）的治療，休息后，隨后進(jìn)行了小球藻（CP）的治療。從（i）任何治療之前，（ii）CSM治療期間和（iii）CP治療期間從所有參與者中收集糞便樣品。結(jié)果。使用CSM治療后，在所有糞便中均發(fā)現(xiàn)了明顯水平的三種不同的PFC，而在治療前大多數(shù)水平均未檢出?？诜﨏P治療后，在每個測試樣品中發(fā)現(xiàn)所有PFC都檢測不到或非常低的水平。結(jié)論。 CSM似乎有助于消除某些常見的PFC，并且可能在應(yīng)計PFC的患者的臨床管理中發(fā)揮某些作用。

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