Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

72
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
72
Renal Corpuscle01:20

Renal Corpuscle

3.3K
The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
3.3K
Complement System01:27

Complement System

2.7K
The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
2.7K
Glomerular Filtration Rate and its Regulation01:28

Glomerular Filtration Rate and its Regulation

3.3K
The Glomerular Filtration Rate (GFR) is a measure of kidney function, reflecting the volume of filtrate formed per minute in the kidneys. On average, GFR is approximately 125 mL/min in males and 105 mL/min in females. Maintaining a relatively constant GFR is essential for the kidneys to effectively regulate body fluid homeostasis and maintain extracellular stability.
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
3.3K
Glaucoma: Overview01:25

Glaucoma: Overview

745
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
745
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

557
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
557

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Nanobodies against Plasmodium adhesins that block receptor engagement and malaria parasite invasion.

The Biochemical journal·2026
Same author

Monoclonal nephritic factors reveal insights into C3 convertase dynamics and dysregulation.

bioRxiv : the preprint server for biology·2026
Same author

Complement genetics: from variation to vulnerability.

Journal of thrombosis and haemostasis : JTH·2026
Same author

In vivo evidence of effective complement modulation by TriFu in comparison to C5 inhibition and complement depletion.

Blood advances·2026
Same author

Serum proteomic atlas reveals distinct molecular signatures of lupus nephritis activity, chronicity, and treatment response.

bioRxiv : the preprint server for biology·2026
Same author

A host defense role for Fibrinogen by direct binding of Clostridium botulinum C2 toxin.

Cellular and molecular life sciences : CMLS·2026
Same journal

YhbO is a DJ-1 family glyoxalase and α-oxoaldehyde hydratase that confers resistance to reactive carbonyl stress (112).

The Journal of biological chemistry·2026
Same journal

ARMH3 acts as a central scaffold at the Golgi/TGN through interactions with Arl5, GBF1, and PI4KB.

The Journal of biological chemistry·2026
Same journal

PAX8 controls proximal tubule epithelial identity and stress response through epigenetic modification of distal regulatory elements.

The Journal of biological chemistry·2026
Same journal

Saturated cardiolipins are potent disruptors of inner mitochondrial membrane structure and function.

The Journal of biological chemistry·2026
Same journal

Phosphate release from myosin Va occurs after the initial powerstroke but before the secondary powerstroke associated with ADP-release.

The Journal of biological chemistry·2026
Same journal

Epigenetic silencing of miR-141 via core promoter methylation is associated with short-term bladder cancer progression.

The Journal of biological chemistry·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Sep 9, 2025

Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes
11:47

Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes

Published on: March 4, 2022

2.4K

La anexina A2 interfiere con la regulación del complemento dentro del glomérulo

Brandon Renner1, Jennifer Laskowski1, Felix Poppelaars1

  • 1Department of Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA.

The Journal of biological chemistry
|September 1, 2025
PubMed
Resumen
Este resumen es generado por máquina.

La anexina A2 interfiere con la función del factor H, aumentando la lesión renal impulsada por el complemento. Su ausencia protege contra lesiones, lo que sugiere que la Anexina A2 promueve la inflamación renal en la enfermedad.

Más Videos Relacionados

Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice
09:43

Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice

Published on: June 8, 2022

3.0K
Highly Sensitive Measurement of Glomerular Permeability in Mice with Fluorescein Isothiocyanate-polysucrose 70
09:16

Highly Sensitive Measurement of Glomerular Permeability in Mice with Fluorescein Isothiocyanate-polysucrose 70

Published on: August 9, 2019

7.0K

Videos de Experimentos Relacionados

Last Updated: Sep 9, 2025

Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes
11:47

Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes

Published on: March 4, 2022

2.4K
Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice
09:43

Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice

Published on: June 8, 2022

3.0K
Highly Sensitive Measurement of Glomerular Permeability in Mice with Fluorescein Isothiocyanate-polysucrose 70
09:16

Highly Sensitive Measurement of Glomerular Permeability in Mice with Fluorescein Isothiocyanate-polysucrose 70

Published on: August 9, 2019

7.0K

Área de la Ciencia:

  • Inmunología
  • Nefrología
  • Biología molecular

Sus antecedentes:

  • La vía alternativa del complemento es un factor clave en las enfermedades glomerulares.
  • El factor H es crucial para la protección renal contra la lesión mediada por el complemento.
  • Otras proteínas pueden interrumpir la regulación del Factor H, lo que lleva al daño renal.

Objetivo del estudio:

  • Investigar el papel de la anexina A2 en la función del factor H y la lesión renal.
  • Determinar cómo la Anexina A2 extracelular afecta la regulación del complemento en las células renales.

Principales métodos:

  • Experimentos in vitro e in vivo para evaluar la unión de la anexina A2 al factor H.
  • Análisis de la actividad reguladora del complemento del factor H en las células glomerulares y las vesículas extracelulares.
  • Estudios en ratones con deficiencia de Annexin A2 para evaluar modelos de lesión renal.

Principales resultados:

  • La Anexina A2 extracelular se une al Factor H (SCR6-8), deteriorando su función reguladora en las células endoteliales glomerulares y los podocitos.
  • La anexina A2 no afecta la función del factor H en la matriz extracelular ni en los eritrocitos.
  • La eliminación dirigida de Annexin A2 en ratones redujo la lesión renal inducida por ciclosporina y la activación del complemento.
  • La expresión de la anexina A2 se incrementa en los estados de enfermedad renal.

Conclusiones:

  • La Anexina A2 extracelular actúa como un regulador positivo de la activación del complemento en el riñón.
  • La anexina A2 promueve la inflamación y la lesión renal al inhibir la función protectora del Factor H.
  • La anexina A2 es un objetivo terapéutico potencial para las enfermedades glomerulares.