Related Experiment Video

Updated: May 25, 2026

Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats
07:41

Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats

Published on: October 23, 2020

Cognitive dysfunction associated with diabetic ketoacidosis in rats

Nicole Glaser1, Steve Anderson, Wesley Leong

  • 1Department of Pediatrics, University of California Davis, School of Medicine, Sacramento, CA 95817, USA. nsglaser@ucdavis.edu

Neuroscience Letters
|January 24, 2012
PubMed

Insights

A single episode of diabetic ketoacidosis (DKA) in juvenile rats impaired learning abilities. This finding in our animal model supports concerns that DKA may cause cognitive deficits in children with type 1 diabetes.

Area of Science:

  • Neuroscience
  • Endocrinology
  • Pediatrics

Background:

  • Type 1 diabetes mellitus (T1DM) in children is linked to neurocognitive deficits.
  • Diabetic ketoacidosis (DKA) may be associated with memory impairment in pediatric T1DM.
  • The cause of these potential neurocognitive deficits remains unclear.

Purpose of the Study:

  • To investigate if a single episode of DKA causes cognitive deficits.
  • To establish an animal model for studying DKA-induced neurocognitive effects.
  • To determine if DKA impacts learning and memory in juvenile rats.

Main Methods:

  • Diabetes was induced in juvenile rats using streptozotocin.
  • One group developed DKA via insulin withdrawal, followed by treatment.
  • Cognitive function was assessed using the Morris Water Maze post-DKA recovery.

Main Results:

  • Rats experiencing DKA showed significantly longer latency times in the Morris Water Maze.
  • Delayed learning was observed in the DKA group compared to diabetic controls.
  • These differences were evident on days 7 and 8 of cognitive testing.

Conclusions:

  • A single DKA episode leads to measurable learning deficits in rats.
  • These findings align with potential DKA-related neurocognitive issues in children with T1DM.
  • DKA may be a contributing factor to cognitive impairments in pediatric type 1 diabetes.
Abstract

More Related Videos

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid06:21

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid

Published on: April 7, 2023

Retinal Pathophysiological Evaluation in a Rat Model09:11

Retinal Pathophysiological Evaluation in a Rat Model

Published on: May 6, 2022

Related Concept Videos

Diabetic Ketoacidosis ll: Pathophysiology01:22

Diabetic Ketoacidosis ll: Pathophysiology

Diabetic ketoacidosis (DKA) is a metabolic emergency characterized by hyperglycemia, ketonemia, and metabolic acidosis. It results from severe insulin deficiency and an excess of counterregulatory hormones, leading to uncontrolled lipolysis, ketogenesis, and widespread electrolyte and fluid disturbances.Pathophysiology The central event in DKA is a profound loss of insulin action. Without insulin, glucose uptake in insulin-dependent tissues is impaired, while hepatic glucose production...
Diabetic Ketoacidosis l: Introduction01:25

Diabetic Ketoacidosis l: Introduction

DefinitionDiabetic ketoacidosis (DKA) is an acute, life-threatening complication of diabetes mellitus, characterized by a triad of hyperglycemia (blood glucose >250 mg/dL), ketonemia or ketonuria, and metabolic acidosis (arterial pH <7.30 and serum bicarbonate <18 mEq/L). It results from insulin deficiency combined with elevated levels of counterregulatory hormones—glucagon, catecholamines, cortisol, and growth hormone—leading to increased lipolysis, hepatic ketone production, and...
Complications of Diabetes Mellitus01:22

Complications of Diabetes Mellitus

Diabetes mellitus is a chronic metabolic disorder characterized by persistent hyperglycemia due to insulin deficiency, resistance, or both. Prolonged hyperglycemia disrupts metabolic homeostasis and leads to acute and chronic complications.Acute ComplicationsAcute complications result from sudden metabolic imbalance.Diabetic ketoacidosis (DKA) mainly appears in type 1 diabetes but may also develop in type 2 diabetes, particularly under extreme stress. It arises from severe insulin deficiency,...
Diabetic Neuropathy01:22

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
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.
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...