Video Experimental Relacionado
Updated: Jan 8, 2026
09:07
Mouse Footpad Inoculation Model to Study Viral-Induced Neuroinflammatory Responses
Published on: June 14, 2020
11.5K
Ciencia básica y patogénesis
Aurore Delvenne1, Marianna Rizzo1, Bailin Zhang2
1Alzheimer Center Limburg, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
Resumen
El plexo coroideo (ChP) muestra patrones de proteínas distintos en la enfermedad de Alzheimer (EA), la enfermedad de Parkinson (EP) y la demencia con cuerpos de Lewy (DCL). Estas proteínas expresadas en el ChP revelan vías específicas de la enfermedad involucradas en la neurodegeneración.
Área de la Ciencia:
- Neurociencia
- Proteómica
- Bioquímica
Sus antecedentes:
- El plexo coroideo (ChP) es crucial para la producción de líquido cefalorraquídeo (LCR) y el mantenimiento de la homeostasis del sistema nervioso central.
- La disfunción del ChP se relaciona cada vez más con la patogénesis de las enfermedades neurodegenerativas.
- Este estudio investiga la participación del ChP en la enfermedad de Alzheimer (EA), la enfermedad de Parkinson (EP) y la demencia con cuerpos de Lewy (DCL) utilizando proteómica del LCR.
Objetivo del estudio:
- Explorar el papel de las proteínas expresadas en el plexo coroideo (ChP) en la fisiopatología de la EA, EP y DCL.
- Identificar firmas proteicas específicas de la enfermedad en el LCR relacionadas con la función del ChP.
- Comprender los mecanismos distintos que subyacen a estas enfermedades neurodegenerativas.
Principales métodos:
- Análisis proteómico del LCR de 2902 proteínas en 150 pacientes con EA, 75 con EP, 53 con DCL y 47 controles.
- Identificación de proteínas altamente expresadas en el ChP utilizando el Allen Brain Atlas.
- Análisis de Redes de Coexpresión Genética Ponderada (WGCNA) para identificar módulos de proteínas y análisis de enriquecimiento de vías.
Principales resultados:
- 799 de 2902 proteínas cuantificadas se expresaron en altos niveles en el ChP.
- Las proteínas expresadas en el ChP desreguladas difirieron significativamente entre EA, EP y DCL.
- WGCNA reveló módulos de proteínas distintos asociados con la inmunidad innata (disminuida en EA), procesos transcripcionales/traduccionales (aumentados en EP) y la matriz extracelular (aumentada en DCL).
Conclusiones:
- El plexo coroideo (ChP) exhibe patrones de expresión proteica distintos en la EA, EP y DCL.
- Estos hallazgos resaltan los roles específicos de la enfermedad de las proteínas expresadas en el ChP en la neurodegeneración.
- Se necesita más investigación para aclarar la participación mecanicista del ChP en la progresión de la enfermedad.
Videos de Conceptos Relacionados
01:20Infection
11.6K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
11.6K
01:25Urinary Tract Infection II: Pathophysiology
524
The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
524
01:23Cystic Fibrosis: Pathogenesis
676
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
676
01:29Pneumonia II: Pathophysiology
2.5K
The pathophysiology of pneumonia involves the following steps:
2.5K
01:26Stages of Infection
64.7K
Stages of infection describe what happens to a susceptible host once a pathogen invades the human body. The stages of infection are incubation, prodromal, illness, stage of decline, and convalescence. The incubation stage is the period from exposure to a pathogen until symptoms start. The infected person is unaware of impending illness as the pathogens grow and multiply within the body. The duration may vary depending on the type of infection. The incubation period of measles averages ten to...
64.7K
01:31Defense Against Bacterial Pathogens
2.6K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.6K