A Traditional Thai Medicine Containing Cannabis Protected Against Stress-Induced Memory Problems in Mice
Suk-SaiYasna, a traditional Thai herbal formula containing cannabis leaves, reversed stress-induced cognitive impairment in mice by activating antioxidant pathways and reducing brain oxidative stress.
Quick Facts
What This Study Found
SSY treatment significantly improved learning and memory in chronically stressed mice across three behavioral tests (Y-maze, novel object recognition, Morris water maze). SSY reduced lipid peroxidation in the hippocampus and frontal cortex and restored SOD and CAT antioxidant enzyme activity. The mechanism involved the Nrf2/Keap1 signaling pathway, with THC and THCA identified as bioactive compounds alongside other herbal antioxidants.
Key Numbers
SSY improved performance on Y-maze, novel object recognition, and Morris water maze tests. Reduced lipid peroxidation in hippocampus and frontal cortex. Restored SOD and CAT activity. Upregulated HO-1 and NQO1 mRNA via Nrf2-Keap1 pathway. Active compounds: THC, THCA, gallic acid, myricetin, myristicin, piperine, costunolide, gingerol.
How They Did This
Mice were exposed to unpredictable chronic mild stress (UCMS) to induce cognitive impairment. SSY-treated groups received the herbal formula during the stress period. Behavioral tests assessed learning and memory. Brain tissue was analyzed for oxidative stress markers and antioxidant enzyme activity. Gene expression analysis examined the Nrf2/Keap1 pathway. Phytochemical analysis identified active compounds.
Why This Research Matters
This bridges traditional Thai medicine with modern neuropharmacology, showing that a centuries-old cannabis-containing formula has measurable neuroprotective effects through well-characterized molecular pathways. The multi-compound formula may have advantages over isolated cannabinoids.
The Bigger Picture
Traditional medicine systems worldwide have used cannabis in multi-herb formulations for centuries. Modern pharmacological validation of these traditional preparations could lead to standardized herbal medicines with evidence-based dosing and quality control.
What This Study Doesn't Tell Us
Mouse model of chronic stress does not perfectly replicate human cognitive decline. The formula contains many active compounds, making it difficult to attribute effects to cannabis specifically. SSY is a traditional preparation that may vary in composition. Dose translation to humans is uncertain.
Questions This Raises
- ?How much of SSY's cognitive protection comes from cannabis versus other ingredients?
- ?Could a standardized version of this formula be developed for human clinical trials?
Trust & Context
- Key Stat:
- Cognitive impairment reversed across three behavioral tests
- Evidence Grade:
- Well-designed animal study with multiple behavioral and molecular endpoints. Preliminary evidence for the specific formula, though the multi-compound nature complicates interpretation.
- Study Age:
- Published in 2025.
- Original Title:
- Suk-SaiYasna Remedy, a Traditional Thai Medicine, Mitigates Stress-Induced Cognitive Impairment via Keap1-Nrf2 Pathway.
- Published In:
- International journal of molecular sciences, 26(11) (2025)
- Authors:
- Masraksa, Wuttipong, Daodee, Supawadee, Monthakantirat, Orawan, Boonyarat, Chantana, Khamphukdee, Charinya, Kwankhao, Pakakrong, Mading, Abdulwaris, Muenhong, Poowanarth, Maneenet, Juthamart, Awale, Suresh, Matsumoto, Kinzo, Chulikhit, Yaowared
- Database ID:
- RTHC-07078
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
What is Suk-SaiYasna?
A traditional Thai herbal formula documented in the Royal Scripture of King Narai's medicine. It contains cannabis leaves along with other herbs and has been traditionally used for sleep, stress, and appetite.
Is the cannabis or the other herbs doing the work?
Likely both. The study identified THC and THCA as active compounds but also found significant antioxidant activity from gallic acid, piperine, and other non-cannabis ingredients. The formula appears to work through multiple complementary mechanisms.
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Cite This Study
https://rethinkthc.com/research/RTHC-07078APA
Masraksa, Wuttipong; Daodee, Supawadee; Monthakantirat, Orawan; Boonyarat, Chantana; Khamphukdee, Charinya; Kwankhao, Pakakrong; Mading, Abdulwaris; Muenhong, Poowanarth; Maneenet, Juthamart; Awale, Suresh; Matsumoto, Kinzo; Chulikhit, Yaowared. (2025). Suk-SaiYasna Remedy, a Traditional Thai Medicine, Mitigates Stress-Induced Cognitive Impairment via Keap1-Nrf2 Pathway.. International journal of molecular sciences, 26(11). https://doi.org/10.3390/ijms26115388
MLA
Masraksa, Wuttipong, et al. "Suk-SaiYasna Remedy, a Traditional Thai Medicine, Mitigates Stress-Induced Cognitive Impairment via Keap1-Nrf2 Pathway.." International journal of molecular sciences, 2025. https://doi.org/10.3390/ijms26115388
RethinkTHC
RethinkTHC Research Database. "Suk-SaiYasna Remedy, a Traditional Thai Medicine, Mitigates ..." RTHC-07078. Retrieved from https://rethinkthc.com/research/masraksa-2025-suksaiyasna-remedy-a-traditional
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.