Gram Research analysis of a 2026 mouse study suggests that Shenqi Jieyu decoction, a traditional Chinese herbal formula, may ease both artery plaque and depression-like behavior in animals with heart disease and depression. The formula corrected 68 of 265 disturbed gut metabolites, pointing to gut and fat-processing changes as possible pathways. Human trials are still needed.
Heart disease and depression often occur together, and the combination is hard to treat. A new study examined Shenqi Jieyu decoction, a traditional Chinese herbal formula already used alongside standard care for heart patients. Researchers gave it to genetically altered mice that developed artery buildup and depression-like behavior from a high-fat diet and repeated stress. The treated mice showed less artery plaque, better mood-related behavior, and higher levels of brain chemicals linked to mood. The formula also reshaped gut bacteria and corrected more disturbed fats and related molecules in the gut than in the blood. According to research reviewed by Gram, these findings are promising but come only from animal experiments and correlation-based analysis, so they cannot yet show the formula works the same way in people.
Key Statistics
A 2026 mouse study found that the high-dose Shenqi Jieyu decoction corrected 68 of 265 disturbed metabolites in the gut but only 8 of 103 in the blood, suggesting the gut is a key site of action.
In the same 2026 animal study, treated mice showed higher levels of mood-related brain chemicals, including serotonin, dopamine, and brain-derived neurotrophic factor, compared with untreated mice with heart and depression-like symptoms.
The Quick Take
- What they studied: Can a traditional Chinese herbal formula ease both artery disease and depression at the same time, and how might it work in the body?
- Who participated: Genetically altered laboratory mice bred to develop artery buildup easily. Researchers gave them a high-fat diet and repeated mild stress to trigger depression-like behavior. The exact number of mice was not listed in the study summary.
- Key finding: The formula reduced artery buildup and depression-like behavior in the mice. It also raised levels of mood-related brain chemicals and corrected more disturbed gut molecules (68 of 265) than blood molecules (8 of 103).
- What it means for you: This is early animal research, so it does not prove the formula helps people. Anyone with heart disease or depression should talk with their doctor before trying any herbal product, since herbs can interact with prescription medicines.
The Research Details
Researchers first set up a mouse model that mimics people with both heart disease and depression. The mice were fed a high-fat diet and exposed to repeated, unpredictable mild stresses such as changes in routine or confinement. This combination was designed to produce artery buildup and low mood at the same time.
The mice were then divided into groups, including a group that received the high-dose herbal formula. The team tested behavior, examined the aorta (the body’s main artery) under a microscope, and measured chemicals in the brain tied to mood and nerve health. They also collected blood and gut contents for chemical analysis.
To look at the bigger picture, the researchers combined several tools. They used a chemical analysis method that detects thousands of small molecules, and a DNA-based method that identifies which bacteria live in the gut. They then used statistical links between these results to suggest how the gut and fats might be connected to the effects.
Combining behavior tests, tissue examination, chemical profiling, and gut bacteria analysis lets researchers see several parts of the body at once. This helps reveal possible pathways, such as gut bacteria changing fat processing, rather than looking at only one effect. Using the same animal model in each group also makes comparisons fairer.
The study used multiple measurement methods and a comparison group, which strengthens confidence in the basic observations. However, the summary does not report how many mice were used, which makes it harder to judge statistical strength. Many gut bacteria findings are predictions based on DNA patterns, not direct measurements of bacterial function. The study also describes its links as correlations, which show that things move together but do not prove one causes the other.
What the Results Show
The main result was that the herbal formula appeared to ease both heart and mood problems in the mice. Treated mice showed less artery buildup and fewer depression-like behaviors compared with untreated mice with the same diet and stress.
The researchers also measured brain chemicals linked to mood, including serotonin, dopamine, and brain-derived neurotrophic factor, which supports nerve cell health. The formula raised levels of these chemicals and reduced inflammatory signals in the brain. These changes suggest the formula may affect brain chemistry as well as blood vessels.
Gut bacteria also shifted toward a more balanced mix in treated mice. Because gut bacteria produce and process many molecules, this shift may help explain the wider effects. The team reported that the formula corrected disturbances in fat-related molecules called sphingolipids and glycerophospholipids.
The correction was much stronger in the gut than in the blood. The high-dose group corrected 68 of 265 disturbed molecules in gut contents, compared with 8 of 103 in serum. This suggests the gut may be the main place where the formula’s effects start.
The researchers used a prediction tool to estimate what the gut bacteria might be doing, based on their DNA. The predicted functions were linked statistically to the fat-related molecules that changed. This supports the idea that gut bacteria and fat metabolism are connected in this process, though the predictions still need direct testing.
The authors describe their conclusions as preliminary. Their wording points to possible rather than proven mechanisms, which is an important distinction for readers to keep in mind.
Previous research has linked gut bacteria to both heart health and mood, and many studies suggest that fat metabolism and inflammation play roles in both conditions. This study fits that broader picture. However, the specific formula studied has limited testing, so these results add early evidence rather than settled proof. Human clinical trials are needed to confirm whether the results apply to people.
The study was done in mice, which do not perfectly match human heart disease or depression. The mouse model was built with a special genetic change and a set diet, which may not reflect how these conditions develop in everyday life. The number of mice per group is not stated in the summary, making it harder to judge how reliable the numbers are. Many of the gut bacteria findings are predictions rather than direct measurements. The results also show associations, so they cannot confirm that the formula directly caused each change.
The Bottom Line
Based on this single animal study, the findings are promising but preliminary. Confidence that the formula works in people is currently low. Researchers should next run controlled human trials that measure heart and mood outcomes directly. People should not start or stop prescribed heart or depression treatments based on this research.
Researchers studying heart disease, depression, and gut health may find this work useful as a starting point. Clinicians and patients dealing with both conditions may find it worth watching for future human trials. Anyone taking blood thinners, antidepressants, or heart medicines should speak with a doctor before considering any herbal formula, since interactions are possible. People without these conditions should not draw personal treatment decisions from this study.
Results from mouse studies usually take years to test in people. Human trials of a new treatment often take several years to complete, and it may be a decade or more before any approved use. For now, there is no proven timeline for patients to expect benefits from this formula.
Frequently Asked Questions
Can Shenqi Jieyu decoction help with heart disease and depression together?
A 2026 mouse study suggests the herbal formula may reduce artery buildup and depression-like behavior at the same time. These results are preliminary and come from animals, so human benefit has not been proven. People should consult a doctor before using any herbal treatment.
How does an herbal formula affect gut bacteria and mood?
Researchers found that the formula helped gut bacteria shift toward a more balanced mix in mice. It also appeared to raise serotonin and dopamine in the brain. Scientists think gut-related fat molecules may link these changes, but this connection still needs direct testing.
Is there research showing traditional Chinese medicine works for depression in people with heart disease?
This specific study was done only in genetically altered mice, not in people. It is an early step that suggests possible pathways. Large human clinical trials would be needed before doctors could recommend the formula for patients with both conditions.
Should I take herbal supplements for heart disease or depression based on this study?
No single animal study is enough to recommend a supplement. Herbal products can interact with blood thinners, antidepressants, and heart medicines. Anyone with heart disease or depression should talk with a doctor before making changes to their treatment plan.
Want to Apply This Research?
- If a user is working with a doctor on heart health and mood, they could log resting blood pressure, weekly mood ratings on a 1 to 10 scale, and daily fiber intake in grams. These measures are simple, repeatable, and can be shared with a healthcare provider. Users should not track this as a treatment outcome of the herbal formula without medical supervision.
- Users can focus on habits with stronger human evidence for both heart and mood health, such as eating more vegetables, beans, and whole grains to support gut bacteria, and limiting saturated fats. Logging meals and mood together in the app can help users notice patterns over time. Any herbal supplement should be discussed with a doctor first.
- Over the long term, users can review monthly averages of mood scores, blood pressure readings, and fiber intake to spot trends. The app can prompt users to share these summaries at regular doctor visits. If new human trial results are published, the app can update its guidance and notify users that the evidence has changed.
This article summarizes an early study done in genetically altered mice, not people. Results may not apply to humans, and the formula has not been shown to be safe or effective for treating heart disease or depression in patients. Herbal products can interact with prescription medicines. Do not change or stop any medical treatment without talking to a qualified healthcare provider. This content is for general information only and is not medical advice.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.