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Related Concept Videos

Dipeptidyl Peptidase 4 Inhibitors01:23

Dipeptidyl Peptidase 4 Inhibitors

Dipeptidyl peptidase 4 (DPP-4) is a serine protease widely distributed in the body. It's involved in the inactivation of GLP-1 and GIP hormones, which are crucial for insulin regulation. DPP-4 inhibitors, such as sitagliptin (Januvia), saxagliptin (Onglyza), linagliptin (Tradjenta), alogliptin (Nesina), and vildagliptin (Galvus), help increase the proportion of active GLP-1, enhancing insulin secretion. These inhibitors work by competitively binding to DPP-4. This binding causes a significant...
Type I Diabetes II: Pathophysiology01:26

Type 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...
Type II Diabetes II: Pathophysiology01:24

Type 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.
Type I Diabetes III: Clinical Manifestations01:19

Type 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...
Pathophysiology of Diabetes01:20

Pathophysiology 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...
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Glucagon-like Receptor Agonists

Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...

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Related Experiment Video

Updated: May 19, 2026

Identification and Dissection of Diverse Mouse Adipose Depots
06:31

Identification and Dissection of Diverse Mouse Adipose Depots

Published on: July 11, 2019

Adiponectin in diabetes mellitus.

N Xita1, A Tsatsoulis

  • 1Department of Endocrinology, University of Ioannina, Ioannina, Greece.

Current Medicinal Chemistry
|August 11, 2012
PubMed
Summary

Adiponectin, a key adipokine, protects against obesity

Area of Science:

  • Metabolic research
  • Endocrinology
  • Obesity studies

Background:

  • Adiponectin is a crucial adipokine with protective effects against obesity-related metabolic and cardiovascular issues.
  • It enhances insulin sensitivity by reducing hepatic gluconeogenesis and increasing glucose transport in muscles.
  • Adiponectin also boosts energy expenditure and fatty acid oxidation in peripheral tissues.

Purpose of the Study:

  • To explore the association between low adiponectin levels (hypoadiponectinemia) and insulin resistance/type 2 diabetes.
  • To investigate whether hypoadiponectinemia is a cause or consequence of these metabolic disorders.
  • To evaluate the therapeutic potential of enhancing adiponectin signaling for diabetes prevention and treatment.

Main Methods:

  • Review of clinical, experimental animal, and genetic studies.

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Characterization of Adipocyte-Derived Extracellular Vesicle Secretion Using a CD63-GFP Reporter Mouse Model In Vivo and In Vitro
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Characterization of Adipocyte-Derived Extracellular Vesicle Secretion Using a CD63-GFP Reporter Mouse Model In Vivo and In Vitro

Published on: December 5, 2025

Related Experiment Videos

Last Updated: May 19, 2026

Identification and Dissection of Diverse Mouse Adipose Depots
06:31

Identification and Dissection of Diverse Mouse Adipose Depots

Published on: July 11, 2019

Characterization of Adipocyte-Derived Extracellular Vesicle Secretion Using a CD63-GFP Reporter Mouse Model In Vivo and In Vitro
10:40

Characterization of Adipocyte-Derived Extracellular Vesicle Secretion Using a CD63-GFP Reporter Mouse Model In Vivo and In Vitro

Published on: December 5, 2025

  • Analysis of drug mechanisms that improve insulin resistance by increasing adiponectin levels.
  • Main Results:

    • Strong evidence links hypoadiponectinemia with insulin resistance and type 2 diabetes.
    • Some drug classes improve insulin resistance, partly by elevating plasma adiponectin.
    • Adiponectin's role in insulin secretion and central energy expenditure is under investigation.

    Conclusions:

    • Adiponectin's multifaceted actions suggest its importance in metabolic health.
    • Hypoadiponectinemia is closely associated with insulin resistance and type 2 diabetes.
    • Targeting adiponectin pathways presents a promising, yet complex, therapeutic strategy for diabetes.