Related Experiment Video
Updated: May 21, 2026
10:03
A Zebrafish Model of Diabetes Mellitus and Metabolic Memory
Published on: February 28, 2013
Metabolic memory for vascular disease in diabetes
Pablo J Aschner1, Alvaro J Ruiz
1Javeriana Pontificia University, San Ignacio University Hospital, Bogota, Colombia. paschner@cable.net.co
Diabetes Technology & Therapeutics
|June 2, 2012
Summary
Metabolic memory, or the lasting harm from high blood glucose (hyperglycemia), persists even after control improves. Early, intensive diabetes management significantly lowers long-term vascular complication risks.
Area of Science:
- Endocrinology
- Diabetology
- Vascular Medicine
Background:
- Metabolic memory describes prolonged harm from hyperglycemia, not benefits, impacting diabetes complications.
- Clinical trials show intensive glycemic control reduces micro- and macrovascular risks long-term.
- Mechanisms involve mitochondrial superoxide production, leading to harmful substance accumulation and epigenetic changes.
Purpose of the Study:
- To explain the phenomenon of metabolic memory in diabetes.
- To elucidate the underlying pathophysiological mechanisms.
- To discuss implications for diabetes management strategies.
Main Methods:
- Review of key randomized clinical trials (DCCT, UKPDS, Steno-2).
- Analysis of molecular mechanisms linking hyperglycemia to vascular damage.
- Synthesis of emerging theories on metabolic memory.
Main Results:
- Intensive glycemic control demonstrated persistent reduction in vascular complications.
- Hyperglycemia induces mitochondrial dysfunction and accumulation of advanced glycated end-products, PKC, and NF-κB.
- These effects may be permanent due to epigenetic modifications.
Conclusions:
- Metabolic memory highlights the lasting damage of hyperglycemia.
- Early and optimal glycemic control is crucial to prevent long-term complications.
- Further research into reversing metabolic memory mechanisms is warranted.
More Related Videos
06:21Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid
Published on: April 7, 2023
08:22Combined Intravital Microscopy and Contrast-enhanced Ultrasonography of the Mouse Hindlimb to Study Insulin-induced Vasodilation and Muscle Perfusion
Published on: March 20, 2017
Related Concept Videos
01:20Pathophysiology of Diabetes
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
01:24Type II Diabetes II: Pathophysiology
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
01:26Type I Diabetes II: Pathophysiology
Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
01:28Diabetic Nephropathy
Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...
01:26Diabetes Mellitus: Introduction
Diabetes mellitus consists of chronic metabolic disorders characterized by persistent hyperglycemia. This elevated blood glucose results from defects in insulin secretion, impaired insulin action, or both. Insulin, produced by pancreatic β-cells, is essential for maintaining glucose homeostasis by facilitating cellular glucose uptake for energy or storage. Disruptions in insulin production or function lead to glucose accumulation in the bloodstream, causing the clinical features and long-term...
01:19Type I Diabetes III: Clinical Manifestations
Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...