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Related Concept Videos

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...
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis01:25

Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis

Type 2 diabetes mellitus develops gradually and is often asymptomatic in early stages.Clinical ManifestationsWhen symptoms appear, they include fatigue, blurred vision, pruritus, delayed wound healing, and recurrent infections, particularly candidal infections. Peripheral neuropathy may present as numbness or tingling in the extremities. Classic hyperglycemia symptoms—polyuria, polydipsia, and polyphagia—are less common. Most patients are overweight and frequently have associated hypertension...
Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
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...
Psychoneuroimmunology: Diabetes and Cancer01:19

Psychoneuroimmunology: Diabetes and Cancer

Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...

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Related Experiment Video

Updated: May 30, 2026

Osmotic Minipump Implantation for Increasing Glucose Concentration in Mouse Cerebrospinal Fluid
06:21

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[Diabetes mellitus and cognitive decline].

Bernhard Iglseder1

  • 1Universitätsklinik für Geriatrie, Christian-Doppler-Klinik, Paracelsus Medizinische Privatuniversität, Salzburg, Austria. b.iglseder@salk.at

Wiener Medizinische Wochenschrift (1946)
|July 28, 2011
PubMed
Summary

Diabetes mellitus increases the risk of cognitive decline and dementia. Understanding the mechanisms, like insulin resistance, is key for developing prevention and treatment strategies.

Area of Science:

  • Neuroscience
  • Endocrinology
  • Epidemiology

Context:

  • Diabetes mellitus is a significant risk factor for cognitive impairment.
  • Epidemiological studies show diabetic patients exhibit poorer cognitive test performance and accelerated decline.
  • Diabetics have a higher incidence of dementia compared to non-diabetic individuals.

Purpose:

  • To investigate the link between diabetes mellitus and cognitive decline.
  • To explore the underlying mechanisms contributing to diabetes-associated cognitive impairment.
  • To identify potential therapeutic targets for preventing and treating cognitive decline in diabetic patients.

Summary:

  • Diabetes mellitus is associated with worse cognitive function and increased dementia risk.
  • Key mechanisms include vascular damage, blood glucose dysregulation (hypo- and hyperglycemia), and insulin resistance.

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Using Retinal Imaging to Study Dementia
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Using Retinal Imaging to Study Dementia

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Published on: April 7, 2023

Behavioral Assessment of Visual Function via Optomotor Response and Cognitive Function via Y-Maze in Diabetic Rats
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  • Dysfunctional insulin action in the brain is a critical factor in cognitive decline.

    • Impact:

    • Highlights the urgent need for interventions to protect cognitive health in diabetes.
    • Provides a foundation for research into novel treatments targeting diabetes-related cognitive impairment.
    • Emphasizes the importance of managing diabetes to prevent long-term neurological consequences.