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Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

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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...
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Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

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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...
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Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

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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...
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Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

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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...
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Gastroesophageal Reflux Disease II: Clinical Features and Management01:29

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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...
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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

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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...
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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

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Manifestaciones Clínicas

Aryan Verma1,2, Junyeon Won2,3, Tsubasa Tomoto2,3

  • 1University of Texas at Dallas, Richardson, TX, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
PubMed
Resumen
Este resumen es generado por máquina.

La rigidez arterial elevada puede empeorar la función cognitiva en el deterioro cognitivo leve al alterar la conectividad cerebral. Abordar la salud vascular es crucial para prevenir el deterioro cognitivo en las poblaciones que envejecen.

Palabras clave:
rigidez arterialdeterioro cognitivo leveconectividad cerebralneuroimagensalud vascular

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Área de la Ciencia:

  • Neurociencia; Cardiología; Gerontología

Sus antecedentes:

  • La rigidez arterial central elevada es un factor de riesgo conocido para el deterioro cognitivo leve amnésico (aMCI) y la demencia.; Los mecanismos precisos que vinculan la salud vascular con el deterioro cognitivo en pacientes con aMCI no se comprenden completamente.

Objetivo del estudio:

  • Investigar la relación entre la rigidez arterial central, la conectividad funcional de la red de modo predeterminado (DMN-FC) y la función cognitiva en individuos con aMCI.; Explorar los posibles roles mediadores de la DMN-FC en la asociación entre la rigidez arterial y el deterioro cognitivo.

Principales métodos:

  • Estudio transversal que involucra a adultos cognitivamente normales y pacientes diagnosticados con aMCI (edades 55-80).; Rigidez arterial central medida utilizando la velocidad de onda de pulso carótida-femoral (cfPWV) y el índice de rigidez β carotídea.; Conectividad funcional de la red de modo predeterminado (DMN-FC) evaluada mediante RMf en reposo, con la corteza cingulada posterior (PCC) como semilla.; Función cognitiva evaluada utilizando la California Verbal Learning Test (CVLT) y la Wisconsin Card Sorting Test (WCST).

Principales resultados:

  • Un mayor índice de rigidez β carotídea se asoció con un peor rendimiento en el CVLT y el WCST en el grupo aMCI.; El aumento de la DMN-FC entre la PCC y el giro precentral derecho (PcG) se correlacionó con peores puntuaciones del CVLT en pacientes con aMCI.; La DMN-FC entre la PCC y la PcG derecha medió significativamente la relación entre un mayor índice de rigidez β carotídea y el deterioro del rendimiento del CVLT en el grupo aMCI.

Conclusiones:

  • La rigidez arterial central elevada puede afectar negativamente el rendimiento cognitivo en pacientes con aMCI al alterar la conectividad funcional de la DMN.; Estas alteraciones de la DMN podrían representar mecanismos compensatorios en respuesta a cambios vasculares.; Mantener la salud vascular es vital para prevenir o retrasar el deterioro cognitivo, particularmente en personas mayores en riesgo de demencia.