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Williams GM, Berry C, Burns M, et al. Glyphosate rodent carcinogenicity bioassay expert panel review. Crit Rev Toxicol. 2016;46:44-55doi: 10.1080/10408444.2016.1214679.
Williams, G. M., Berry, C., Burns, M., de Camargo, J. L. V., & Greim, H. (2016). Glyphosate rodent carcinogenicity bioassay expert panel review. Critical reviews in toxicology, 4644-55. https://doi.org/10.1080/10408444.2016.1214679
Williams, Gary M, et al. "Glyphosate rodent carcinogenicity bioassay expert panel review." Critical reviews in toxicology vol. 46 (2016): 44-55. doi: https://doi.org/10.1080/10408444.2016.1214679
Williams GM, Berry C, Burns M, de Camargo JLV, Greim H. Glyphosate rodent carcinogenicity bioassay expert panel review. Crit Rev Toxicol. 2016 Sep;46:44-55. doi: 10.1080/10408444.2016.1214679. PMID: 27677669.
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Crit Rev Toxicol. 2016 Sep;46:44-55. doi: 10.1080/10408444.2016.1214679.

Glyphosate rodent carcinogenicity bioassay expert panel review.

Critical reviews in toxicology

Gary M Williams, Colin Berry, Michele Burns, Joao Lauro Viana de Camargo, Helmut Greim

Affiliations

  1. a New York Medical College , Valhalla , NY , USA.
  2. b Queen Mary, University of London , London , UK.
  3. c Boston Children's Hospital , Boston , MA , USA.
  4. d Botucatu Medical School, São Paulo State University, UNESP , Sao Paulo , Brazil.
  5. e Technical University of Munich , Munich , Germany.

PMID: 27677669 DOI: 10.1080/10408444.2016.1214679

Abstract

Glyphosate has been rigorously and extensively tested for carcinogenicity by administration to mice (five studies) and to rats (nine studies). Most authorities have concluded that the evidence does not indicate a cancer risk to humans. The International Agency for Research on Cancer (IARC), however, evaluated some of the available data and concluded that glyphosate probably is carcinogenic to humans. The expert panel convened by Intertek assessed the findings used by IARC, as well as the full body of evidence and found the following: (1) the renal neoplastic effects in males of one mouse study are not associated with glyphosate exposure, because they lack statistical significance, strength, consistency, specificity, lack a dose-response pattern, plausibility, and coherence; (2) the strength of association of liver hemangiosarcomas in a different mouse study is absent, lacking consistency, and a dose-response effect and having in high dose males only a significant incidence increase which is within the historical control range; (3) pancreatic islet-cell adenomas (non-significant incidence increase), in two studies of male SD rats did not progress to carcinomas and lacked a dose-response pattern (the highest incidence is in the low dose followed by the high dose); (4) in one of two studies, a non-significant positive trend in the incidence of hepatocellular adenomas in male rats did not lead to progression to carcinomas; (5) in one of two studies, the non-significant positive trend in the incidence of thyroid C-cell adenomas in female rats was not present and there was no progression of adenomas to carcinomas at the end of the study. Application of criteria for causality considerations to the above mentioned tumor types and given the overall weight-of-evidence (WoE), the expert panel concluded that glyphosate is not a carcinogen in laboratory animals.

Keywords: Glyphosate; Roundup; aminomethylphosphoric acid; cancer; genotoxicity; herbicide

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