Central Glucose Homeostasis

Glucose Homeostasis

The regulation of glucose levels in the body to maintain stable blood sugar.

Hypothalamus

Part of the brain that regulates hormone levels and energy balance.

Afferents

Nerve fibers that carry sensory signals to the brain.

Glycogenolysis

The process of breaking down glycogen into glucose.

Gluconeogenesis

The synthesis of glucose from non-carbohydrate sources.

Sympathetic Nervous System

Part of the autonomic nervous system activated during stress, increases blood glucose.

Parasympathetic Nervous System

Part of the autonomic nervous system that decreases blood sugar and stimulates insulin secretion.

Counter-regulation of Hypoglycemia

Processes that increase glucose levels in response to low blood sugar.

Glucose Sensing Neurons

Neurons that detect glucose levels and regulate metabolism accordingly.

Ventromedial Hypothalamus

A region in the brain involved in regulating glucose sensing during hypoglycemia.

GABA

A neurotransmitter that inhibits neuronal activity and is influenced by glucose levels.

Negative Feedback Control

Mechanism that maintains glucose homeostasis through hormone regulation.

Insulin

A hormone produced by the pancreas that lowers blood glucose levels.

Leptin

A hormone that inhibits appetite and helps regulate energy balance.

AGRP (Agouti-related peptide)

A peptide that promotes hunger, inhibited by insulin and leptin.

POMC (Pro-opiomelanocortin)

A precursor protein that suppresses hunger, activated by insulin and GLP-1.

GLP-1 (Glucagon-like peptide-1)

A hormone important for regulating glucose metabolism and appetite.

kATP Channels

ATP-sensitive potassium channels that play a key role in energy balance.

CNS Hormones

Hormones in the central nervous system that influence glucose production.

Glycine

An inhibitory neurotransmitter that helps regulate glucose homeostasis.

GlyT1

Glycine transporter 1, which regulates extracellular glycine levels.

NMDA Receptors

Receptors that mediate excitatory neurotransmission and are influenced by glycine.

Gut-Brain Interaction

The communication between the gut and the brain that affects appetite and glucose regulation.

Cross-talk

Interaction between different systems, such as the gut and brain.

Type 2 Diabetes Management

Use of GLP-1 agonists and other treatments to regulate blood sugar in overweight patients.

Nutrient Sensing

The detection of nutrients by the brain to regulate feeding and glucose production.

Epinephrine

A hormone that increases blood glucose levels during stress.

Cortisol

A hormone released during stress that raises blood glucose levels.

Glucagon

A hormone that raises blood glucose levels by stimulating glucose production.

Obesity and Diabetes Therapeutics

Strategies and medications aimed at improving glucose metabolism in overweight individuals.

Feeding Signals

Signals that promote appetite and food intake, including hormonal signals.

Satiety Signals

Signals that promote the feeling of fullness and reduce food intake.