Comparison of cannabinoids with known analgesics using a novel high throughput zebrafish larval model of nociception

Alternative titleA novel zebrafish larval model of nociception used to compare cannabinoids with known analgesics
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  1. Available on September 19, 2018
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DOIResolve DOI: http://doi.org/10.1016/j.bbr.2017.09.028
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TypeArticle
Journal titleBehavioural Brain Research
ISSN0166-4328
1872-7549
Pages# of pages: 9
Subjectzebrafish; cannabinoid; nociception; THC; CBD; pain
AbstractIt has been established that both adult and larval zebrafish are capable of showing nociceptive responses to noxious stimuli; however, the use of larvae to test novel analgesics has not been fully explored. Zebrafish larvae represent a low-cost, high-throughput alternative to traditional mammalian models for the assessment of product efficacy during the initial stages of drug development. In the current study, a novel model of nociception using zebrafish larvae is described. During the recovery from an acute exposure to low levels of acetic acid, larvae display innate changes in behaviour that may be indicative of nociception. To assess the usefulness of this model for testing potential analgesics, three known synthetic pain medications were assessed (ibuprofen, acetaminophen and tramadol) along with three naturally occurring products (honokiol, tetrahydrocannabinol and cannabidiol). When the effect of each compound on both the acetic acid recovery and control activity was compared there appeared to be both similarities and differences between the compounds. One of the most interesting effects was found for cannabidiol which appeared to oppose the activity change during the recovery period of AA exposed larvae while having a nominal effect on control activity. This would appear to be in line with current research that has demonstrated the nociceptive properties of cannabidiol. Here we have provided a novel model that will complement existing zebrafish models and will expand on the potential use of zebrafish larvae for studying both nociception and new analgesics.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationAquatic and Crop Resource Development; National Research Council Canada
Peer reviewedYes
NRC numberNRC-ACRD-56342
NPARC number23002285
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Record identifierb473564b-c35f-4067-ba97-559fc19aafc4
Record created2017-10-04
Record modified2017-10-04
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