Evidence-Based Complementary and Alternative Medicine / 2014 / Article / Fig 1

Research Article

Proof-of-Concept Randomized Controlled Study of Cognition Effects of the Proprietary Extract Sceletium tortuosum (Zembrin) Targeting Phosphodiesterase-4 in Cognitively Healthy Subjects: Implications for Alzheimer’s Dementia

Figure 1

Chemical structures of alkaloids isolated from Sceletium tortuosum: mesembrine, mesembrenol, mesembrenone, and mesembranol.

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