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Short Communication

Serum S100 protein could predict altered consciousness in glyphosate or glufosinate poisoning patients

, , , , &
Pages 357-359 | Received 06 Sep 2016, Accepted 12 Jan 2017, Published online: 16 Mar 2017
 

Abstract

Background: Central nervous system (CNS) complications such as seizures and reduced consciousness are important in glufosinate and may occur in severe glyphosate poisoning. The aim of this study was to assess the possible role of serum S100B protein as a biochemical marker of CNS complications associated with glyphosate or glufosinate poisoning.

Methods: The study enrolled 40 patients (23 glyphosate poisoning and 17 glufosinate poisoning). Altered consciousness and seizure were observed during hospitalization. S100B level was measured with fully automated modular analytic E170 system using electrochemoluminometric immunoassay.

Results: Among 40 patients, neurologic features were observed in 12 patients with a median time to onset of 21.5 (IQR 8.25–24.75) h. Serum S100B concentrations measured on admission were higher in the group with neurologic features than in the group without neurologic features [0.148 μg/L (IQR 0.128–0.248) vs. 0.072 μg/L (IQR 0.047–0.084), p < .001]. Univariate analysis of measured patient raw parameters using a ROC curve showed that S100B was a significant predictor of neurologic features in glyphosate and glufosinate poisoning. The area under the ROC curve was 0.894 (95% confidential interval 0.791–0.998). When S100B was set at 0.0965, its sensitivity and specificity for predicting neurologic features in glyphosate and glufosinate poisoning were 92% and 82%, respectively.

Conclusions: In our pilot study, S100B was a significant predictor of neurologic complications in patients with glyphosate and glufosinate poisoning. Large prospective cohorts are needed to confirm this finding.

Disclosure statement

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.

Additional information

Funding

This study was supported by Soonchunhyang University Research Fund.

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