Video Experimental Relacionado
Updated: Sep 6, 2025
09:03
Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
Published on: November 7, 2020
5.0K
La niebla de la COVID desmitificada
Jennifer Kao1, Paul W Frankland2
1Program in Neurosciences & Mental Health, Hospital for Sick Children, 686 Bay St, Toronto, ON M5G 0A4, Canada; Department of Physiology, University of Toronto, Toronto, ON M5G 1A8, Canada.
Cell
|June 29, 2022
Resumen
La infección leve por SARS-CoV-2 puede causar "niebla COVID", un problema cognitivo crónico. Las investigaciones muestran que los cambios en las células gliales y los problemas del circuito neuronal pueden ser la base de las deficiencias cognitivas prolongadas por COVID.
Área de la Ciencia:
- La neurociencia
- Inmunología
- Enfermedades infecciosas
Sus antecedentes:
- La infección aguda por SARS-CoV-2, incluso cuando es leve, está relacionada con déficits cognitivos persistentes, a menudo denominados "niebla COVID".
- Los mecanismos precisos que impulsan estos deterioros cognitivos a largo plazo siguen siendo incompletamente entendidos.
Objetivo del estudio:
- Investigar el papel de la desregulación de las células gliales en el desarrollo de deficiencias cognitivas después de la infección por SARS-CoV-2.
- Explorar la conexión entre la disfunción glial y las anomalías del circuito neuronal en el contexto de la COVID prolongada.
Principales métodos:
- Utilizando modelos de ratón de la infección por el SARS-CoV-2.
- Empleando marcadores neuroinflamatorios y pruebas de comportamiento para evaluar la función cognitiva.
- Analizando la activación de las células gliales y la integridad del circuito neuronal.
Principales resultados:
- Se ha demostrado una activación glial y una neuroinflamación significativas en respuesta a la infección por SARS-CoV-2.
- Las alteraciones observadas en la función del circuito neuronal se correlacionan con déficits cognitivos.
- Se identificó un vínculo entre la desregulación glial y la manifestación de "niebla COVID".
Conclusiones:
- La desregulación de las células gliales es un factor clave que contribuye a las deficiencias cognitivas en el COVID prolongado.
- Dirigirse a la neuroinflamación y las respuestas gliales puede ofrecer estrategias terapéuticas para la "niebla COVID".
- Este estudio proporciona información mecanicista sobre las secuelas neurológicas de la infección por SARS-CoV-2.
Más Videos Relacionados
Videos de Conceptos Relacionados
01:20COPD: Pathogenesis and Clinical Features
501
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
501
01:29Pneumonia II: Pathophysiology
511
The pathophysiology of pneumonia involves the following steps:
511
01:30Pneumonia I: Introduction
325
Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
325
01:31Common Respiratory Disorders
882
Respiratory disorders, a prevalent health concern globally, are generally divided into two primary categories: upper and lower respiratory tract disorders. The categorization is based on the area of the respiratory system they affect.
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
Upper respiratory disorders impact the airways above the vocal cords, encompassing areas like the nose, sinuses, and throat. Various conditions fall under this category, including the common cold and allergic rhinitis. These disorders can stem from several causes,...
882
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
3.0K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
3.0K
01:20Asthma: Pathogenesis and Management
562
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
562