Related Experiment Video
Updated: Jun 21, 2026
06:22
Modeling and Evaluation of Murine Diabetic Cardiomyopathy Model
Published on: November 29, 2024
Carnitine and type 2 diabetes
1Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA. mynattrl@pbrc.edu
Diabetes/Metabolism Research and Reviews
|August 8, 2009
Summary
Excess lipids worsen insulin resistance by accumulating in tissues. Carnitine supplementation shows promise in improving glucose utilization and reversing metabolic issues, warranting further clinical trials for type 2 diabetes treatment.
Area of Science:
- Metabolic disorders
- Nutritional biochemistry
Background:
- Excessive lipid supply contributes to insulin resistance through intracellular lipid accumulation in various tissues.
- Accumulation of fatty acyl CoA derivatives in muscle impairs insulin signaling and glucose oxidation, exacerbating insulin resistance.
Purpose of the Study:
- To explore the potential of agents that reduce fatty acyl CoA derivative accumulation for treating or preventing insulin resistance and type 2 diabetes (T2D).
- To evaluate the efficacy of carnitine supplementation in improving insulin sensitivity and metabolic abnormalities associated with T2D.
Main Methods:
- Utilized hyperinsulinemic/euglycemic clamp studies in humans to assess glucose utilization.
- Conducted carnitine supplementation studies in rodents to investigate effects on fuel metabolism.
Main Results:
- Carnitine supplementation demonstrated proof-of-concept efficacy in improving insulin-stimulated glucose utilization in human studies.
- Rodent studies indicated carnitine's effectiveness in reversing fuel metabolism abnormalities linked to T2D.
Conclusions:
- Carnitine plays a role in ameliorating lipid-induced insulin resistance.
- Dietary carnitine supplementation may serve as an effective adjunctive therapy for type 2 diabetes, requiring further clinical validation.
Related Concept Videos
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 II Diabetes I: Introduction
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
01:22Diabetes Mellitus: Type 2 and Gestational
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
01:36Carbohydrate Metabolism
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in the...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in the...
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...
01:22Diabetes Mellitus: Overview and Type I Subtype
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...