Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

516
Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
516
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

295
Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
295
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

358
Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
358
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

430
Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
430
Gastroesophageal Reflux Disease II: Clinical Features and Management01:29

Gastroesophageal Reflux Disease II: Clinical Features and Management

647
Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
647
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

433
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
433

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Comparison of functional disability in older surgical patients with and without probable cognitive impairment: A longitudinal prospective cohort study.

Journal of anesthesia and translational medicine·2026
Same author

Characterizing preoperative domain-specific performance on the Montreal Cognitive Assessment and exploring its associations with adverse outcomes.

Anesthesiology and perioperative science·2026
Same author

Clinical Diagnoses After Positive Cognitive Screening: A Case Series of Older Surgical Patients.

A&A practice·2026
Same author

Using the ascertain dementia eight-item questionnaire to identify at-risk older surgical patients.

Journal of clinical anesthesia·2026
Same author

Characterization of a distinct form of vimentin in the neurodegenerative brain.

Acta neuropathologica communications·2026
Same author

Exploring sex differences in bvFTD through clinician insights.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Evidence for progressive neurodegeneration in iatrogenic cerebral amyloid angiopathy.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Human brain connectome profiles mediate the relationship between pathology burden and clinical phenotypes in Alzheimer's disease.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Kat5 cKO mouse replicates biological domain signatures associated with Alzheimer's disease.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Evaluation of CSF and plasma tau species as fluid surrogate candidates for tau PET in prodromal to moderate Alzheimer's disease.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Associations of self-reported obstructive sleep apnea with cognition and dementia risk in cognitively unimpaired middle-aged adults.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Inflammation profiles in Alzheimer's disease relate to cognition and neurodegeneration.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
See all related articles

Related Experiment Video

Updated: Jan 7, 2026

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
07:50

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

Published on: September 20, 2018

16.4K

Clinical Manifestations.

Hessah A Alotibi1, Juan-Camilo Vargas-González2, Alia Alokley1

  • 1Memory Clinic, Toronto Western Hospital, University Health Network, Toronto, ON, Canada.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 25, 2025
PubMed
Summary
This summary is machine-generated.

Patients with negative amyloid PET scans often have mild cognitive impairment and less severe memory loss than those with Alzheimer's disease. Differentiating non-Alzheimer's pathologies like LATE is crucial for accurate diagnosis.

More Related Videos

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
04:44

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

Published on: June 16, 2020

20.7K
Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling
09:08

Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling

Published on: October 14, 2021

6.1K

Related Experiment Videos

Last Updated: Jan 7, 2026

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
07:50

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts

Published on: September 20, 2018

16.4K
Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
04:44

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

Published on: June 16, 2020

20.7K
Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling
09:08

Isolating Human Peripheral Blood Mononuclear Cells and CD4+ T cells from Sézary Syndrome Patients for Transcriptomic Profiling

Published on: October 14, 2021

6.1K

Area of Science:

  • Neurology
  • Neuroimaging
  • Cognitive Science

Background:

  • Diagnosing memory concerns in amyloid-PET-negative patients presents challenges, necessitating differentiation from non-Alzheimer's disease (AD) pathologies.
  • Limbic-predominant Age-related TDP-43 Encephalopathy (LATE) is a key differential diagnosis, characterized by specific cognitive and neuroimaging features.
  • Identifying distinguishing features between amyloid-negative and amyloid-positive cognitive impairment is vital for improving diagnostic accuracy.

Purpose of the Study:

  • To compare cognitive and neuroimaging characteristics of patients with and without amyloid plaques.
  • To investigate the clinical profiles of amyloid-negative individuals, considering alternative diagnoses like LATE.
  • To enhance diagnostic workflows for memory clinics by understanding differences in cognitive decline patterns.

Main Methods:

  • A descriptive study involving 56 patients with cognitive complaints, divided into amyloid-PET-negative (n=28) and amyloid-PET-positive (n=28) groups.
  • Data collection included positron emission tomography (PET), MRI, and the Toronto Cognitive Assessment (ToRCA) between 2023-2025.
  • Demographic, cognitive, amyloid PET, and MRI data were analyzed, comparing medians and interquartile ranges.

Main Results:

  • Amyloid-negative patients more frequently presented with amnestic Mild Cognitive Impairment (aMCI) compared to the amyloid-positive group.
  • Amyloid-negative individuals demonstrated significantly better performance in delayed recall, delayed recognition, and visuospatial memory.
  • Semantic fluency was higher in amyloid-negative patients, while lexical fluency and medial temporal lobe atrophy did not differ significantly.

Conclusions:

  • Amyloid-negative patients are more likely to have aMCI and milder memory deficits, consistent with LATE being less severe than AD.
  • While referral bias may influence findings, the results highlight the importance of considering non-AD pathologies in amyloid-negative cases.
  • Further research into distinct clinical signatures is needed to refine diagnostic approaches for memory clinic patients.