Summary
5-Hydroxytryptamine (5-HT) and hypoxanthine were isolated chromatographically from the holothurianPentacter crassa. This study was initiated as a result of the observed hypotensive activity of aP. crassa extract. This activity was also encountered in extracts of the holothuriansThelenota ananus andStichopus chloronatus and can be attributed to 5-HT.
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Gregson, R.P., Marwood, J.F. & Quinn, R.J. The occurrence of 5-hydroxytryptamine in the holothurian, Pentacter crassa. Experientia 37, 930–931 (1981). https://doi.org/10.1007/BF01971759
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DOI: https://doi.org/10.1007/BF01971759