Related Experiment Videos

Nutritional status is associated with disease progression in very mild Alzheimer disease

Pierre-Jean Ousset1, Fati Nourhashemi, Emma Reynish

  • 1Department of Internal Medicine and Gerontology, Alzheimer Disease Center, CHU Purpan-Casselardit, Toulouse, France. ousset.pj@chu-toulouse.fr

Insights

Poor nutrition and lower cognitive scores predict Alzheimer disease (AD) progression in patients with very mild AD. Early nutritional assessment can help identify at-risk individuals.

Area of Science:

  • Neurology
  • Geriatrics
  • Nutritional Science

Background:

  • Alzheimer disease (AD) diagnosis often occurs at later stages.
  • Identifying early predictors of progression in very mild AD is crucial for timely intervention.

Purpose of the Study:

  • To identify baseline factors associated with disease progression in patients with very mild Alzheimer disease (AD).
  • To determine if nutritional status and cognitive performance predict progression in early-stage AD.

Main Methods:

  • A multicenter cohort study followed 160 patients with very mild AD (Clinical Dementia Rating [CDR] 0.5) for 1 year.
  • Progression was defined as a CDR score >=1 at 1-year follow-up.
  • Baseline nutritional status (Mini Nutritional Assessment) and cognitive performance (Alzheimer Disease Assessment Scale) were compared between stable and progressed groups.

Main Results:

  • 47.5% of patients progressed to CDR >=1 within 1 year.
  • Lower nutritional status (OR 0.80) and lower cognitive performance (OR 1.22) at baseline were significant predictors of progression.
  • These findings highlight the importance of early assessment of these factors.

Conclusions:

  • Nutritional status and cognitive performance are key predictors of progression in very mild AD.
  • Integrating nutritional assessment into routine clinical evaluations can aid in identifying patients at high risk for AD progression.
  • Early detection facilitates timely therapeutic strategies for better patient outcomes.

Related Concept Videos

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...
Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ and tau...
Alzheimer Disease ll: Pathophysiology01:23

Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...
Alzheimer's Disease: Treatment01:22

Alzheimer's Disease: Treatment

Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
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...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...