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Leonti M, Staub PO, Cabras S, et al. From cumulative cultural transmission to evidence-based medicine: evolution of medicinal plant knowledge in Southern Italy. Front Pharmacol. 2015;6:207doi: 10.3389/fphar.2015.00207.
Leonti, M., Staub, P. O., Cabras, S., Castellanos, M. E., & Casu, L. (2015). From cumulative cultural transmission to evidence-based medicine: evolution of medicinal plant knowledge in Southern Italy. Frontiers in pharmacology, 6207. https://doi.org/10.3389/fphar.2015.00207
Leonti, Marco, et al. "From cumulative cultural transmission to evidence-based medicine: evolution of medicinal plant knowledge in Southern Italy." Frontiers in pharmacology vol. 6 (2015): 207. doi: https://doi.org/10.3389/fphar.2015.00207
Leonti M, Staub PO, Cabras S, Castellanos ME, Casu L. From cumulative cultural transmission to evidence-based medicine: evolution of medicinal plant knowledge in Southern Italy. Front Pharmacol. 2015 Sep 30;6:207. doi: 10.3389/fphar.2015.00207. eCollection 2015. PMID: 26483686; PMCID: PMC4588697.
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Front Pharmacol. 2015 Sep 30;6:207. doi: 10.3389/fphar.2015.00207. eCollection 2015.

From cumulative cultural transmission to evidence-based medicine: evolution of medicinal plant knowledge in Southern Italy.

Frontiers in pharmacology

Marco Leonti, Peter O Staub, Stefano Cabras, Maria Eugenia Castellanos, Laura Casu

Affiliations

  1. Department of Biomedical Sciences, University of Cagliari Cagliari, Italy.
  2. Department of Mathematics and Informatics, University of Cagliari Cagliari, Italy ; Department of Statistics, Carlos III University of Madrid Getafe, Spain.
  3. Department of Informatics and Statistics, Rey Juan Carlos University Móstoles, Spain.
  4. Department of Life and Environmental Sciences, University of Cagliari Cagliari, Italy.

PMID: 26483686 PMCID: PMC4588697 DOI: 10.3389/fphar.2015.00207

Abstract

In Mediterranean cultures written records of medicinal plant use have a long tradition. This written record contributed to building a consensus about what was perceived to be an efficacious pharmacopeia. Passed down through millennia, these scripts have transmitted knowledge about plant uses, with high fidelity, to scholars and laypersons alike. Herbal medicine's importance and the long-standing written record call for a better understanding of the mechanisms influencing the transmission of contemporary medicinal plant knowledge. Here we contextualize herbal medicine within evolutionary medicine and cultural evolution. Cumulative knowledge transmission is approached by estimating the causal effect of two seminal scripts about materia medica written by Dioscorides and Galen, two classical Greco-Roman physicians, on today's medicinal plant use in the Southern Italian regions of Campania, Sardinia, and Sicily. Plant-use combinations are treated as transmissible cultural traits (or "memes"), which in analogy to the biological evolution of genetic traits, are subjected to mutation and selection. Our results suggest that until today ancient scripts have exerted a strong influence on the use of herbal medicine. We conclude that the repeated empirical testing and scientific study of health care claims is guiding and shaping the selection of efficacious treatments and evidence-based herbal medicine.

Keywords: De Materia Medica; causal effect; cultural transmission and evolution; evidence-based; globalization; herbal medicine; historical ethnopharmacology; traditional medical knowledge

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