Ancient Brain Surgery and the Evolution of Medicinal Practices

TLDR Ancient civilizations performed successful brain surgeries through trepanation, while modern medicine has evolved to synthetically duplicate plant-based drugs. Ethnobotanists work with synthetic chemists to create synthetic versions of plant-derived drugs, which have been used for both medicinal purposes and as poisons throughout history.

Timestamped Summary

00:00 Ancient civilizations performed brain surgery and patients survived through a practice called trepanation.
04:13 Trepanation is an ancient surgical procedure that involved cutting away a piece of the skull and scalp to relieve pressure on the brain, and it was successful with a 70-80% success rate in some ancient cultures.
08:25 In the 19th century, there was a sharp divergence in the use of plant-based drugs, with only 5.3% being plant-based by 1960, due to the ability to synthetically duplicate these plants, leading to a separation between the West and traditional cultures in terms of medicinal practices.
12:49 Ethnobotanists work with synthetic chemists to determine the specific part of a plant and the amount to use in order to create a synthetic version of the active ingredient, which is preferred over simple extraction due to inconsistencies in potency.
16:44 Ethnobotany has identified various plant-derived drugs, such as quinine, digoxin, morphine, and Valium, which have been synthesized for commercial use.
21:14 Enzymes from plants can be used as catalysts in chemical reactions to synthesize drugs, and plants have been used for both medicinal purposes and as poisons throughout history.
25:30 Researchers in the 1920s discovered that alcohol actually speeds up the delivery of snake venom, but they also found that injecting snake venom into horses can help build up an immune system and produce antibodies that can be used as anti-venom for humans.
29:50 Researchers have found that atropine, derived from the deadly nightshade plant, can prevent the effects of anthrax and serin, and tarantula venom can potentially save people from heart attacks by blocking ion channels, while scorpion venom can be used to treat brain cancer by preventing the spread of cancerous cells.
34:21 The hosts discuss their office setup and share some personal anecdotes, including their most interesting dreams and favorite things sent by listeners.
38:31 The hosts discuss their favorite candies, books from their childhood, and how to contact them.
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