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NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
What is Cancer?02:12

What is Cancer?

Cells and tissues must meticulously coordinate their activities for the normal functioning of the human body. Therefore, they exhibit socially responsible behavior - resting, growing, dividing, differentiating, or dying - for the organism’s benefit. Cancer arises when cells divide uncontrollably and invade other tissues or organs.
Although people have known about cancer for centuries, it was only in 1761 that Giovanni Morgagni of Padua performed a detailed autopsy of patients who died from...
What is Cancer?02:12

What is Cancer?

Cells and tissues must meticulously coordinate their activities for the normal functioning of the human body. Therefore, they exhibit socially responsible behavior - resting, growing, dividing, differentiating, or dying - for the organism’s benefit. Cancer arises when cells divide uncontrollably and invade other tissues or organs.
Although people have known about cancer for centuries, it was only in 1761 that Giovanni Morgagni of Padua performed a detailed autopsy of patients who died from...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Disorders of the Skeletal Muscle01:28

Disorders of the Skeletal Muscle

The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...

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Video Experimental Relacionado

Updated: Jun 29, 2026

Anti-Nuclear Antibody Screening Using HEp-2 Cells
13:01

Anti-Nuclear Antibody Screening Using HEp-2 Cells

Published on: June 24, 2014

La tuberculosis es la tuberculosis.

Thomas R Frieden1, Timothy R Sterling, Sonal S Munsiff

  • 1New York City Department of Health and Mental Hygiene, New York, NY 10013, USA. tfrieden@health.nyc.gov

Lancet (London, England)
|September 19, 2003
PubMed
Resumen
Este resumen es generado por máquina.

La tuberculosis sigue siendo una de las principales causas de muerte en todo el mundo, especialmente en los países en desarrollo. La mejora del diagnóstico, las estrategias de tratamiento como el DOTS y las futuras vacunas son cruciales para el control.

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Área de la Ciencia:

  • Salud Pública La salud pública.
  • Enfermedades infecciosas Enfermedades infecciosas.
  • Salud Global La salud global.

Sus antecedentes:

  • La tuberculosis (TB) es la segunda causa principal de muerte a nivel mundial, causando casi 2 millones de muertes al año.
  • La incidencia está aumentando en África debido al VIH y en la antigua Unión Soviética debido a factores socioeconómicos y al declive de la atención médica.
  • El diagnóstico se basa en el cultivo de Mycobacterium tuberculosis, pero las pruebas rápidas de frotis de esputo y los métodos moleculares son vitales.

Objetivo del estudio:

  • Revisar el estado actual del control de la tuberculosis en todo el mundo.
  • Para resaltar los desafíos y el progreso en el diagnóstico, el tratamiento y las estrategias de prevención.
  • Hacer hincapié en la necesidad de esfuerzos continuos en el desarrollo de vacunas y sistemas de tratamiento.

Principales métodos:

  • Revisión de los datos mundiales de incidencia, mortalidad y tratamiento de la tuberculosis.
  • Análisis de técnicas de diagnóstico, incluyendo cultivo, frotis de esputo y métodos moleculares.
  • Evaluación de las estrategias de tratamiento, centrándose en el enfoque de tratamiento de observación directa, curso corto (DOTS).

Principales resultados:

  • Más del 95% de las tasas de curación son alcanzables con regímenes de tratamiento multi-droga, de 6 meses.
  • El Tratamiento Directamente Observado, Corto Plazo (DOTS) es el estándar de atención, sin embargo, solo un tercio de los casos globales lo reciben.
  • Se han logrado avances significativos en el diagnóstico y el tratamiento en la última década, pero los objetivos mundiales siguen sin cumplirse.

Conclusiones:

  • El control efectivo de la tuberculosis requiere un monitoreo sistemático, una mejor detección de casos y una adopción generalizada del DOTS.
  • Si bien se están desarrollando nuevas vacunas, los sistemas de tratamiento mejorados son esenciales para las próximas décadas.
  • Controlar la tuberculosis a nivel mundial es imperativo para reducir su impacto en los países menos desarrollados y mitigar los riesgos en las naciones desarrolladas.