A 2026 animal study found that Yishen Xiaoke Formula, a traditional Chinese herbal remedy, reduced kidney scarring in diabetic rats by blocking molecular signals that cause tissue damage. According to Gram Research analysis, treated rats showed significantly lower protein leakage in urine, improved blood sugar control, and reduced kidney scarring compared to untreated diabetic rats. However, this research was conducted only in rats, so human studies are needed before the formula can be recommended as a diabetes treatment.
Researchers tested a traditional Chinese herbal formula called Yishen Xiaoke Formula on rats with diabetic kidney disease. According to Gram Research analysis, the formula reduced protein leakage in urine, lowered blood sugar, and slowed the scarring process in kidneys. The treatment worked by blocking specific molecular signals that cause kidney tissue to harden and scar. While these results are promising, the study was conducted in rats, so scientists will need to test the formula in humans before recommending it as a diabetes treatment.
Key Statistics
A 2026 animal study of 75 rats found that Yishen Xiaoke Formula significantly reduced 24-hour urinary protein excretion and serum creatinine levels in rats with diabetic kidney disease compared to untreated controls.
Researchers discovered that Yishen Xiaoke Formula reduced the expression of TGF-beta 1, Jagged1, and Hes1 proteins in kidney tissue, which are key drivers of kidney scarring in diabetes.
When scientists artificially reactivated the TGF-beta 1 pathway in treated rats, the protective effects of Yishen Xiaoke Formula were completely reversed, proving this pathway is essential to how the formula works.
The Quick Take
- What they studied: Whether an herbal formula used in traditional Chinese medicine could slow kidney damage in rats with diabetes by blocking harmful molecular signals
- Who participated: 75 male laboratory rats, divided into a healthy control group and groups with induced diabetic kidney disease that received different treatments over 8 weeks
- Key finding: Rats treated with Yishen Xiaoke Formula showed significantly reduced protein in their urine, lower blood sugar levels, and less kidney scarring compared to untreated diabetic rats
- What it means for you: This research suggests a traditional herbal approach might help protect kidneys in diabetes, but human studies are needed before anyone should consider it as a treatment option
The Research Details
Scientists created diabetic kidney disease in 60 rats using three methods: removing one kidney, feeding them a high-fat and high-sugar diet, and injecting a chemical that damages the pancreas. They then divided these sick rats into groups that received either the herbal formula, a standard diabetes medication called irbesartan, or a combination treatment. A separate group of 15 healthy rats served as the comparison. After 8 weeks, researchers measured kidney function, blood sugar, and examined kidney tissue under a microscope to see if scarring had slowed.
The study focused on blocking specific molecular pathways, particularly one called TGF-beta 1 and another called the Notch pathway. These pathways are like communication systems inside cells that tell kidney tissue to become scarred and stiff. By measuring the activity of genes and proteins involved in these pathways, researchers could see exactly how the herbal formula was working at the cellular level.
This type of animal study is important because it allows scientists to control all variables carefully and examine tissue damage directly, which cannot be done in living humans. However, results in rats do not always translate to humans, so this research is an early-stage investigation rather than proof that the formula works in people.
Diabetic kidney disease is a major complication affecting millions of people worldwide. Current treatments slow but do not stop kidney damage. Understanding how traditional remedies work at the molecular level could lead to new medications. This study bridges ancient medical knowledge with modern science by testing whether traditional formulas have real biological effects that modern medicine can measure and understand.
The study used proper scientific controls, including a healthy comparison group and a standard medication comparison group. Researchers used multiple measurement methods (blood tests, urine tests, tissue examination, and genetic analysis) to confirm their findings. The fact that blocking the TGF-beta pathway reversed the formula’s protective effects suggests the researchers correctly identified how it works. However, this was an animal study with a relatively small sample size, so results may not apply to humans. The study was published in 2026, making it very recent research.
What the Results Show
Rats treated with Yishen Xiaoke Formula showed dramatic improvements in kidney function markers. Protein leakage in 24-hour urine collections, a key sign of kidney damage, decreased significantly compared to untreated diabetic rats. Blood sugar levels also improved, and serum creatinine, a measure of kidney waste removal, was lower in treated rats.
When researchers examined kidney tissue under a microscope using special staining techniques, they found that the formula reduced two types of kidney damage: glomerulosclerosis (scarring of the filtering units) and interstitial fibrosis (scarring of the tissue between filtering units). This suggests the formula actually slowed the progression of kidney damage rather than just improving temporary markers.
At the molecular level, the formula reduced the activity of three key proteins involved in scarring: TGF-beta 1, Jagged1, and Hes1. These proteins normally trigger a cascade of signals that tells kidney cells to produce scar tissue. By reducing these proteins, the formula interrupted the scarring process at its source.
Crucially, when researchers artificially activated the TGF-beta 1 pathway in treated rats, the protective effects of the formula disappeared. This proves that blocking this specific pathway is how the formula works, not through some other mechanism.
The formula appeared to work as well as irbesartan, a standard medication for diabetic kidney disease, in several measures. When the formula was combined with irbesartan, the effects were not significantly better than either treatment alone, suggesting they may work through similar mechanisms. This finding is important because it validates the formula’s approach while also suggesting there may be limits to combining these treatments.
Previous research has shown that TGF-beta 1 is a major driver of kidney scarring in diabetes. This study confirms that blocking this pathway is beneficial and identifies a traditional herbal formula that appears to do this naturally. The Notch signaling pathway, which this formula also blocks, has been less studied in diabetic kidney disease, so this research adds new information about its role. The results align with how traditional Chinese medicine describes the formula’s effects, suggesting ancient medical observations may have identified treatments that work through modern biological mechanisms.
This study was conducted entirely in rats, and rat biology does not always match human biology. The study lasted only 8 weeks, while diabetic kidney disease in humans develops over years or decades, so we do not know if the formula would remain effective long-term. The researchers did not test different doses of the formula, so the optimal dose for humans is unknown. The study did not examine potential side effects or interactions with other medications. Finally, the formula contains multiple herbs, so researchers cannot determine which specific herb or combination of herbs provides the benefit.
The Bottom Line
This research is too early-stage to recommend Yishen Xiaoke Formula as a treatment for diabetic kidney disease in humans. The evidence is moderate quality because it comes from animal studies only. People with diabetes should continue taking prescribed medications and following their doctor’s advice. If future human studies confirm these results, the formula might become a complementary treatment option, but this requires years of additional research.
People with diabetes and kidney disease should be aware of this research as a potential future treatment avenue, but should not change their current treatment based on this study. Healthcare providers treating diabetic kidney disease should monitor this research as it progresses to human trials. Researchers in herbal medicine and kidney disease should find this work valuable for identifying which traditional formulas have real biological effects. People interested in traditional Chinese medicine will find this study interesting as evidence that some traditional treatments have measurable scientific effects.
If this research leads to human trials, it typically takes 5 to 10 years to move from animal studies to approved treatments. Early human safety studies would come first, followed by larger trials testing effectiveness. Even if human trials are successful, regulatory approval could take several additional years. People should not expect this formula to become a standard treatment option for at least 5 to 10 years, if the research continues to show promise.
Frequently Asked Questions
Can I use Yishen Xiaoke Formula to treat my diabetic kidney disease?
Not yet based on current evidence. This formula has only been tested in rats, not humans. You should continue taking medications prescribed by your doctor. Talk to your healthcare provider before considering any herbal supplements, as they may interact with your diabetes medications.
How does Yishen Xiaoke Formula protect the kidneys?
The formula blocks molecular signals called TGF-beta 1 and the Notch pathway that normally trigger kidney cells to produce scar tissue. By reducing these signals, the formula slows the scarring process that damages kidney function in diabetes.
When will this herbal formula be available as a diabetes treatment?
Human clinical trials would need to happen first, which typically takes 5 to 10 years minimum. Even if trials are successful, regulatory approval could take several more years. This research is an early-stage discovery, not an approved treatment.
Is Yishen Xiaoke Formula better than standard diabetes medications?
In this rat study, the formula worked about as well as irbesartan, a standard kidney-protective medication. Combining them did not improve results further. More research is needed to compare effectiveness in humans.
What are the side effects of Yishen Xiaoke Formula?
This animal study did not examine side effects or safety in humans. The formula contains multiple herbs, and potential interactions with other medications are unknown. Anyone considering herbal supplements should discuss this with their doctor first.
Want to Apply This Research?
- Users with diabetes can track kidney function markers through their healthcare provider: measure urine protein levels monthly, monitor serum creatinine quarterly, and log fasting blood glucose daily to establish baseline trends before and after any herbal interventions
- Users interested in this research could use the app to log herbal supplement intake alongside standard diabetes medications, blood sugar readings, and kidney function test results to identify patterns and share data with their healthcare provider for discussion
- Establish a quarterly review system within the app that compares kidney function markers (creatinine, urine protein) and blood sugar control over time, creating visual trends that users can discuss with their nephrologist or endocrinologist to assess whether any complementary approaches are contributing to kidney health
This research was conducted in laboratory rats and has not been tested in humans. Yishen Xiaoke Formula is not approved by the FDA or most regulatory agencies for treating diabetic kidney disease. Do not use this formula as a replacement for prescribed diabetes medications or kidney disease treatments. People with diabetes should continue following their doctor’s treatment plan and consult their healthcare provider before taking any herbal supplements, as they may interact with medications or affect blood sugar control. This article is for educational purposes only and should not be considered medical advice.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.