FIGURE 7

![FIGURE 7: Neurotransmitter level quantification in key brain regions demonstrates that loganin treatment alters the balance of serotonin and GABA pathways associated with sleep regulation.](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6491506/bin/fphar-10-00409-g007.jpg)

> Source: Rui Shi et al. "Loganin Exerts Sedative and Hypnotic Effects via Modulation of the Serotonergic ." *Frontiers in pharmacology*, 2019. PMID: [31068813](https://pubmed.ncbi.nlm.nih.gov/31068813/)

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  <img src="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6491506/bin/fphar-10-00409-g007.jpg" alt="Neurotransmitter level quantification in key brain regions demonstrates that loganin treatment alters the balance of serotonin and GABA pathways associated with sleep regulation." />
  <figcaption>FIGURE 7. Neurotransmitter level quantification in key brain regions demonstrates that loganin treatment alters the balance of serotonin and GABA pathways associated with sleep regulation.<br>  Source: Rui Shi et al. "Loganin Exerts Sedative and Hypnotic Effects via Modulation of the Serotonergic ." <em>Frontiers in pharmacology</em>, 2019. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/31068813/">31068813</a></figcaption>
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