Activation of SF1 Neurons in the Ventromedial Hypothalamus by DREADD Technology Increases Insulin Sensitivity in Peripheral Tissues

Activation of SF1 neurons via DREADD technology reduced food intake and increased energy expenditure in mice.

• Optogenetic stimulation of VMH neurons that express steroidogenic factor 1 (SF1) is associated with hyperglycemia.
• Leptin acting through the VMH stimulates glucose utilization and insulin sensitivity in certain peripheral tissues.
• Activation of SF1 neurons increased whole-body glucose utilization and glucose uptake in skeletal muscle, heart, and brown adipose tissue.
• This activation also enhanced glucose production and glycogen breakdown in the liver, helping to maintain blood glucose levels.
• During hyperinsulinemic-euglycemic clamp studies, SF1 neuron activation improved insulin-induced glucose uptake and tended to suppress glucose production.
• DREADD technology may serve as a valuable tool for exploring the brain's role in regulating insulin sensitivity.

AI simplified