Corncob :A comfort to laboratory rodents or A risk to research objectives ?
DOI:
https://doi.org/10.48165/jlas.2020.3.1.7Keywords:
Corncob, estrogenic, endocrine disruption, mitogenic, hardwood chipsAbstract
Corncob has been the most common choice of bedding material for laboratory animals in many countries due to its ready availability, low cost and better absorbance properties. However, corncob has been reported to have estrogenic, endocrine disruption and mitogenic properties by few authors. Animal facilities need to make a wise decision while selecting a particular bedding type, such that the unwanted effects associated with bedding like corncob, may not interfere with the research objectives. Chip bedding made from hardwood is one of the most common choices of bedding by most international animal facilities for commercial breeders, academic research institutes, pharmaceutical industry and pre clinical contract research organisations.
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References
Barry M, Shaila M, Mary AA et al., (2002). A Novel Endocrine-Disrupting Agent in Corn with Mitogenic Activity in Human Breast and Prostatic Cancer Cells. Environ.Health Perspect. 110(2): 169-177.
Ras T, van de VenM, Patterson-Kane EG, Nelson K (2002). Rats’ preferences for corn versus wood-based bedding and nesting materials.Lab. Anim. 36(4): 420-425.
Thomas CK, Axel KH (2008). Evaluation of Corncob as Bedding for Rodents.Scand. J. Lab. Anim. Sci. 35 (4) : 231-236.
Trainor BC, Takahashi EY, Campi KL et al., (2013). Sex differences in stress-induced social withdrawal: independence from adult gonadal hormones and inhibition of female phenotype by corncob bedding. Horm.Behav. 63(3):543-550.
Villalon LR, Morisseau C, Yoo HJ, Fu SH, Hammock BD,Trainor BC (2012).Corncob Bedding Alters the Effects of Estrogens on Aggressive Behavior and Reduces Estrogen Receptor-α Expression in the Brain. Endocrinol.
153(2):949-953.