Lateral Epidural Stimulation to Decrease Glucose Levels: A Preliminary Preclinical Study

Area of Science:

• Neuroscience
• Endocrinology
• Medical Devices

Background:

• Medical therapy for type 2 diabetes (T2D) often presents challenges with side effects and patient adherence.
• Device-based therapies are being explored as potentially more desirable alternatives.

Purpose of the Study:

• To investigate if increased dorsal root nerve activity via lateral epidural stimulation (LES) can indirectly lower glucose levels.
• To determine the optimal spinal level for LES to influence insulin secretion and glucose levels.

Main Methods:

• Animal study involving LES at various vertebral levels to assess effects on insulin secretion and blood glucose.
• Glucose tolerance tests were conducted to evaluate LES impact on glucose and insulin dynamics.
• C-peptide levels were measured as a surrogate for insulin secretion.

Main Results:

• The T9-T10 vertebral level was identified as optimal for LES to affect C-peptide secretion.
• LES significantly increased C-peptide levels during an intravenous glucose tolerance test in a hyperglycemic state (p=0.024).
• LES enhanced glucose elimination from the bloodstream, indicated by a more negative glucose decay time constant (p=0.045).

Conclusions:

• Lateral epidural stimulation (LES) shows promise as a therapeutic approach for type 2 diabetes.
• LES may be particularly beneficial for patients with T2D who are noncompliant with medications or experience adverse effects.
• This therapy has the potential to modulate insulin secretion and improve glucose levels, especially under hyperglycemic conditions.