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Related Concept Videos

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.
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion01:20

Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion

Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...
Diabetic Nephropathy01:28

Diabetic 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...
Obesity01:24

Obesity

The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
Type II Diabetes I: Introduction01:26

Type 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...
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...

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Related Experiment Video

Updated: Jul 13, 2026

Combined Intravital Microscopy and Contrast-enhanced Ultrasonography of the Mouse Hindlimb to Study Insulin-induced Vasodilation and Muscle Perfusion
08:22

Combined Intravital Microscopy and Contrast-enhanced Ultrasonography of the Mouse Hindlimb to Study Insulin-induced Vasodilation and Muscle Perfusion

Published on: March 20, 2017

Obesity, insulin resistance, and renal function.

Sarah F Knight1, John D Imig

  • 1Vascular Biology Center, Medical College of Georgia, Augusta, Georgia 30912, USA.

Microcirculation (New York, N.Y. : 1994)
|July 7, 2007
PubMed
Summary

Obesity and insulin resistance promote kidney disease through inflammation and vascular changes. Understanding these effects is crucial for managing renal complications.

Area of Science:

  • Nephrology
  • Endocrinology
  • Immunology

Background:

  • Obesity and insulin resistance are linked to progressive renal disease.
  • These conditions trigger low-grade inflammation, increasing macrophage infiltration in adipose tissue and kidneys.
  • Pro-inflammatory cytokines, adipokines, and altered vasoactive molecules contribute to renal dysfunction.

Purpose of the Study:

  • To review the evidence linking obesity and insulin resistance to renal disease progression.
  • To elucidate the mechanisms of renal microvascular injury in these metabolic conditions.

Main Methods:

  • Literature review of studies investigating obesity, insulin resistance, and kidney disease.
  • Analysis of inflammatory pathways, adipokine effects, and endothelial function alterations.

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Published on: January 7, 2018

Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance
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Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance

Published on: February 17, 2023

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Combined Intravital Microscopy and Contrast-enhanced Ultrasonography of the Mouse Hindlimb to Study Insulin-induced Vasodilation and Muscle Perfusion
08:22

Combined Intravital Microscopy and Contrast-enhanced Ultrasonography of the Mouse Hindlimb to Study Insulin-induced Vasodilation and Muscle Perfusion

Published on: March 20, 2017

Study of In Vivo Glucose Metabolism in High-fat Diet-fed Mice Using Oral Glucose Tolerance Test (OGTT) and Insulin Tolerance Test (ITT)
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Study of In Vivo Glucose Metabolism in High-fat Diet-fed Mice Using Oral Glucose Tolerance Test (OGTT) and Insulin Tolerance Test (ITT)

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Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance
09:48

Differentiated Mouse Adipocytes in Primary Culture: A Model of Insulin Resistance

Published on: February 17, 2023

  • Examination of hyperinsulinemia's direct renal impacts.

    • Main Results:

    • Obesity and insulin resistance induce macrophage infiltration and pro-inflammatory cytokine release.
    • Adipokines like leptin cause vascular remodeling and disrupt renal function.
    • Insulin resistance alters nitric oxide/reactive oxygen species balance, impairing renal endothelial function.
    • Hyperinsulinemia leads to glomerular hyperfiltration, angiogenesis, and mesangial cell proliferation, contributing to diabetic nephropathy.

    Conclusions:

    • A direct link exists between increased adiposity, insulin resistance, and renal vascular injury.
    • Further research is needed to fully understand the renal microvascular effects of obesity and insulin resistance.