Subcutaneous injection of hydrogen gas is a novel effective treatment for type 2 diabetes

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Abstract

Aims/Introduction

In previous studies, hydrogen gas (H2) administration has clearly shown effectiveness in inhibiting diabetes. Here, we evaluated whether subcutaneous injection of H2 shows enhanced efficacy against type 2 diabetes mellitus induced in mice by a high-fat diet and low-dose streptozotocin treatment.

Material and Methods

H2 was injected subcutaneously at a dose of 1 mL/mouse/week for 4 weeks. Type 2 diabetes mellitus-associated parameters were then evaluated to determine the effectiveness of subcutaneous H2 administration.

Results

The bodyweight of H2-treated mice did not change over the course of the experiment. Compared with the untreated control animals, glucose, insulin, low-density lipoprotein and triglyceride levels in the serum were significantly lower in treated mice, whereas high-density lipoprotein cholesterol in the serum was significantly higher. Glucose tolerance and insulin sensitivity were both improved in H2-treated mice. Diabetic nephropathy analysis showed significant reductions in urine volume, urinary total protein and β2-microglobulin, kidney/bodyweight ratio, and kidney fibrosis associated with subcutaneous injection of H2.

Conclusions

Subcutaneous injection of H2 significantly improves type 2 diabetes mellitus and diabetic nephropathy-related outcomes in a mouse model, supporting further consideration of subcutaneous injection as a novel and effective route of clinical H2 administration.

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