RGD Reference Report - Neurobehavioral and transcriptional effects of acrylamide in juvenile rats. - Rat Genome Database

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Neurobehavioral and transcriptional effects of acrylamide in juvenile rats.

Authors: Seale, SM  Feng, Q  Agarwal, AK  El-Alfy, AT 
Citation: Seale SM, etal., Pharmacol Biochem Behav. 2012 Mar;101(1):77-84. doi: 10.1016/j.pbb.2011.12.006. Epub 2011 Dec 16.
RGD ID: 9831396
Pubmed: PMID:22197712   (View Abstract at PubMed)
DOI: DOI:10.1016/j.pbb.2011.12.006   (Journal Full-text)

Acrylamide is a type-2 alkene monomer with established human neurotoxic effects. While the primary source of human exposure to acrylamide is occupational, other exposure sources include food, drinking water, and smoking. In this study, neurobehavioral assays coupled with transcriptional profiling analysis were conducted to assess both behavioral and gene expression effects induced by acrylamide neurotoxicity in juvenile rats. Acrylamide administration in rat pups induced significant characteristic neurotoxic symptoms including increased heel splay, decrease in grip strength, and decrease in locomotor activity. Transcriptome analysis with the Affymetrix Rat Genome 230 2.0 array indicated that acrylamide treatment caused a significant alteration in the expression of a few genes that are involved in muscle contraction, pain, and dopaminergic neuronal pathways. First, expression of the Mylpf gene involved in muscle contraction was downregulated in the spinal cord in response to acrylamide. Second, in sciatic nerves, acrylamide repressed the expression of the opioid receptor gene Oprk1 that is known to play a role in neuropathic pain regulation. Finally, in the cerebellum, acrylamide treatment caused a decrease in the expression of the nuclear receptor gene Nr4a2 that is required for development of dopaminergic neurons. Thus, our work examining the effect of acrylamide at the whole-genome level on a developmental mammalian model has identified a few genes previously not implicated in acrylamide neurotoxicity that might be further developed into biomarkers for assessing the risk of adverse health effects induced by acrylamide exposure.



Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Oprk1Ratresponse to acrylamide  IEP  RGD 

Objects Annotated

Genes (Rattus norvegicus)
Oprk1  (opioid receptor, kappa 1)


Additional Information