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Ivan Casselman

Southern Cross Plant Science, Centre for Phytochemistry and Pharmacology, Southern Cross University, Lismore, NSW, Australia. ivan.casselman@scu.edu.au

2 papers in the library · 84 citations · publishing 2011-2014

Papers

From local to global-fifty years of research on Salvia divinorum.

Journal of ethnopharmacology February 3, 2014 Ivan Casselman, Catherine J Nock, Hans Wohlmuth et al. 54 citations

Over the past 50 years, Salvia divinorum has become globally recognized for its main active constituent, the diterpene salvinorin A, which is a kappa-opioid agonist and the first reported psychoactive diterpene. This review covers ethnobotany, ethnopharmacology, taxonomy, systematics, genetics, chemistry, and pharmacodynamic and pharmacokinetic research. Traditional Mazatec use is well documented, but modern ethnobotanical use is not. Botanical investigations are limited, and only one study has examined phylogenetic relationships. Chemistry research has focused on salvinorin A and related diterpenoids. Effects have primarily been studied in animal models. Published human studies report no harmful effects at doses of 0.375-21µg/kg, but more toxicology and safety data are needed before larger clinical trials.

Novel use patterns of Salvia divinorum: unobtrusive observation using YouTube™.

Journal of ethnopharmacology December 8, 2011 Ivan Casselman, Michael Heinrich 30 citations

A novel use pattern of Salvia divinorum has developed outside of Oaxaca, differing from traditional Mazatec use. Analyzing YouTube videos through unobtrusive observation and a custom web crawler, the study documented that the majority of videos presented indications of a positive experience with the plant, contradicting media reports. This methodology captures dynamic plant/human interactions on the World Wide Web, where global migration and online platforms amplify cultural change. The representation of Salvia divinorum on YouTube is a growing phenomenon, highlighting the need for ethnopharmacological research to move beyond traditional, decontextualized accounts.