## I-123] b-CIT is a single photon emission computed tomography (SPECT) radioligand that has been used for in vivo studies of the dopamine and serotonin transporters. Two metabolite peaks of b-CIT have been observed by high performance liquid chromatography (HPLC), but neither has been chemically
Trends of plant use by humans and nonhuman primates in Amazonia
โ Scribed by Otto R. Gottlieb; Maria Renata de M. B. Borin; Barbara M. Bosisio
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 356 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0275-2565
No coin nor oath required. For personal study only.
โฆ Synopsis
Analyses of plant use in Amazonia by three species of nonhuman primates reveal a common trend: more primitive plant species are used as food. An identical situation prevails for three indigenous human societies which additionally selected more recently evolved plant species as medicine. One hypothesis to explain the observations is related to the presence of toxic constituents in the more advanced species, in contrast to astringent polyphenols in the more primitive ones. Thus a certain degree of astringency might indicate absence of harmful chemicals, and even stimulate ingestion.
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