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标题：Efficacy of N,N‘bis-(2-mercaptoethyl) isophthalamide on mercury intoxication: a randomized controlled trial
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作者：Paul Schutzmeier ; Augusto Focil Baquerizo ; Wilson Castillo-Tandazo 等
期刊名称：Environmental Health - a Global Access Science Source
印刷版ISSN：1476-069X
电子版ISSN：1476-069X
出版年度：2018
卷号：17
期号：1
页码：15
DOI：10.1186/s12940-018-0358-1
语种：English
出版社：BioMed Central
摘要：Chronic mercury intoxication is a severe health issue and occurs especially in gold mining communities. Common chelators used for improving mercury elimination are not everywhere available and challenged by poor cell wall penetration. This study is part of a feasibility trial and the aim was to gather first information about the efficacy of the newly developed chelator N,N‘bis-(2-mercaptoethyl) isophthalamide (NBMI) on chronic mercury intoxication. In this three-armed, placebo-controlled randomized trial, 36 miners with mercury urine levels exceeding 15 μg/l were administered 100 mg NBMI, 300 mg NBMI or placebo for 14 days. Levels of mercury in urine [μg/l and μg/g creatinine] and plasma l were analyzed. Therapeutic effect was assessed using the medical intoxication score (MIS) and its single health outcomes (e.g. excessive salivation, sleeping problems), fatigue scores, a neuromotoric test battery (CATSYS) and a neurological outcome (Finger to nose test). Physical fatigue was significantly decreased in the 300 mg NBMI group compared to the control. Mercury concentration in urine following 300 mg NBMI treatment was significantly lowered compared to control, however, this effect was less distinct with adjustment for creatinine. NBMI showed an effect on physical fatigue and there were indications to positive effects on other symptoms as well. More comprehensive studies are mandatory to verify the effects of NBMI as a novel tool for treating mercury intoxications. ClinicalTrials.gov Identifier: NCT02486289 . Date of registration: June 24, 2015.
关键词：Mercury ; Chronic mercury intoxication ; Gold mining ; NBMI ; Chelation therapy