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General Information

Document type
  • Journal Article
GE organism
  • soybean
GE trait
  • herbicide tolerance
  • United States


  • no effect
Safety for consumption
  • no effect

Subchronic feeding study of herbicide–tolerant soybean DP-356Ø43-5 in Sprague–Dawley rats

Appenzeller, LM; Munley, SM; Hoban, D; Sykes, GP; Malley, LA; Delaney, B
Food and Chemical Toxicology. 2008 June. 46(6):2201-2213

Link to full text (journal may charge for access)

PMID: 19524635 DOI: 10.1016/j.fct.2008.02.017 ISSN: 1873-6351 0278-6915


Optimum GAT soybean is a genetically modified (GM) soybean containing event DP-356Ø43-5 (356043) that was produced by integration of the coding sequences of the GAT4601 and GM–HRA proteins. In planta expression of these proteins confers tolerance to glyphosate and sulfonylurea/imidazolinone herbicides, respectively. This paper reports the results from a subchronic rat feeding study conducted with 356043 soybeans. Dehulled/defatted toasted meal and toasted ground hulls were prepared from soybeans from untreate plants (356043), herbicide-treated plants (356043 + Gly/SU), non-transgenic isoline control (091), and three commercial non-transgenic reference varieties (93B86, 93B15, and 93M40). Individual diets conforming to standard certified rodent chow formulation (Purina Rodent LabDiet 5002) were prepared with 20% meal (w/w) and 1.5% hulls (w/w). Diets were fed to young adult Sprague–Dawley rats (12/sex/group) for at least 93 days. Compared with rats fed the isoline control or conventional reference diets, no biologically-relevant, adverse effects were observed in rats fed diets containing 356043 or 356043 + Gly/SU soybean with respect to body weight/gain, food consumption/efficiency, clinical signs, mortality, ophthalmology, neurobehavioral assessments (sensory response, grip strength, motor activity), clinical pathology (hematology, coagulation, serum chemistry, urinalysis), organ weights, and gross and microscopic pathology. The results from this study indicate that 356043 soybeans are as safe and nutritious as conventional non-GM soybeans.


Biotechnology; Genetically modified; Glyphosate acetyltransferase; Rat; Soybean; Subchronic


Funding source
  • DuPont Pioneer
Funding country
  • United States
Funding type
  • industry: same

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Cite this study


Appenzeller, LM, SM Munley, D Hoban, GP Sykes, LA Malley, B Delaney. "Subchronic feeding study of herbicide–tolerant soybean DP-356Ø43-5 in Sprague–Dawley rats." Food and Chemical Toxicology 46.6 (2008): 2201-2213. Web. 4 Mar. 2024.


Appenzeller, LM., Munley, SM., Hoban, D., Sykes, GP., Malley, LA., & Delaney, B. (2008). Subchronic feeding study of herbicide–tolerant soybean DP-356Ø43-5 in Sprague–Dawley rats. Food and Chemical Toxicology, 46(6), 2201-2213. doi:10.1016/j.fct.2008.02.017

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