The study is the first to show the specific trigger for nausea – a common symptom of many diseases and a distressing side effect of chemotherapy that is not effectively treated by current drugs – and its suppression by cannabidiol, a non-psychoactive compound in cannabis.

“This work may lead to a host of potential therapeutic benefits,” says Linda Parker, a U of G psychology professor who has studied the pharmacological properties of cannabinoids on brain behaviours for almost two decades.

This includes better anti-nausea therapies using cannabis as well as a novel drug that elevates a natural cannabinoid (2-AG) in the brain region responsible for the sensation of nausea. The study was supported by the Canadian Institutes of Health Research.

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Last year, they published what is believed to be the first-ever scientific paper on growing better marijuana using science.

“Growing marijuana has been illegal for so many years that there has been hardly any scientific research up until this point on how to produce this crop,” says Zheng, who worked with SES Prof. Mike Dixon and PhD student Deron Caplan.

The researchers analyzed optimal fertilizer rates and soilless growing substrates to achieve higher yields and more concentrated medicinal components in marijuana.

Partly funded by the Natural Sciences and Engineering Research Council of Canada, the study garnered international media attention after it was published in the journal HortScience.

The researchers continue to investigate ideal horticultural practices for indoor cannabis production.

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