Research and evidence

In-houseDisugar® as the test material · preclinical
Fasting glucose ↓
Glucose metabolism and exercise capacity

Type 2 diabetic mouse model: improved insulin sensitivity; higher thermogenesis and respiratory exchange ratio; improved endurance indices

Qingyunshan TCM Innovation Science Laboratory
½ + ½ > 1
With berberine HCl · diabetic heart protection

Type 2 diabetic mice: each at half dose, the combination improved inflammation and myocardial fibrosis clearly more than either component alone at full dose; heart-injury markers came close to normal and the heart's pumping function improved

Test material Disugar® DNJ 5% · Qingyunshan TCM Innovation Science Laboratory · invention patent application published, CN 120789130 A · in the PCT international phase
Cerebral perfusion ↑
Diabetic cerebral microvasculature · preclinical

Endothelial cell migration and mitochondrial membrane potential increased; after one month of dosing, type 2 diabetic mice showed more cerebral microvessel formation and higher cerebral blood perfusion, with open-field and novel-object recognition behaviour improving in parallel

Test material Disugar® DNJ 5% · Qingyunshan TCM Innovation R&D Co., Ltd. · invention patent application published, CN 120189455 A
Third-party laboratoryCommissioned externally
MTD ≥ 5,000mg/kg
Acute oral toxicity · GLP · DNJ 1%

1.1% DNJ test material; single oral doses of 5,000 / 2,000 / 300 mg/kg in female SD rats; no deaths within 14 days

NMPA GLP-certified non-clinical drug evaluation centre · State Key Laboratory for New Drug Safety Evaluation
α-glucosidase ≫ α-amylase
In-vitro enzyme inhibition · DNJ 1%

Inhibits both enzymes, with markedly stronger inhibition of α-glucosidase

China National Research Institute of Food and Fermentation Industries · Beijing Key Laboratory of Functional Staple Foods and Nutritional Intervention for Chronic Disease
Category literaturePublished
Postprandial glucose · insulin ↓
1-DNJ-enriched mulberry leaf powder · human

A single oral dose suppressed the postprandial rise in glucose and insulin

Kimura T. et al., J Agric Food Chem 2007;55:5869
Blood-glucose rise ↓
Mulberry leaf extract · human · 75 g sucrose load

In type 2 diabetic and control subjects the rise in blood glucose after 75 g sucrose was smaller, while breath hydrogen rose — meaning part of the sucrose was not broken down and absorbed in the small intestine but passed to the colon for bacterial fermentation, independent evidence that sugar digestion was slowed

Mudra M. et al., Diabetes Care 2007;30:1272
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