Video Experimental Relacionado

Updated: May 5, 2026

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection

Published on: December 11, 2013

La bilirrubina sérica y el riesgo de enfermedades respiratorias y muerte

Laura J Horsfall¹, Greta Rait, Kate Walters

¹Research Department of Primary Care and Population Health, University College London, Royal Free Hospital, Rowland Hill Street, London NW3 2PF, England. laura.horsfall@ucl.ac.uk

|February 18, 2011

Resumen

Los niveles más altos de bilirrubina sérica en adultos sanos están relacionados con un menor riesgo de enfermedades respiratorias, incluida la enfermedad pulmonar obstructiva crónica (EPOC) y el cáncer de pulmón, así como una menor mortalidad por todas las causas.

Área de la Ciencia:

Medicina Pulmonar La medicina pulmonar es el tratamiento de las enfermedades pulmonares.
La bioquímica es la bioquímica.
Epidemiología La epidemiología.

Sus antecedentes:

Los niveles séricos de bilirrubina total están influenciados por factores genéticos y ambientales.
Estos factores pueden afectar la susceptibilidad de un individuo a las enfermedades respiratorias.

Objetivo del estudio:

Investigar la asociación entre los niveles séricos de bilirrubina y el riesgo de desarrollar enfermedades respiratorias.
Examinar la relación entre los niveles de bilirrubina y la mortalidad por cualquier causa.

Principales métodos:

Se realizó un gran estudio de cohorte con 504.206 adultos utilizando datos de atención primaria del Reino Unido.
Los niveles séricos de bilirrubina se analizaron en individuos sin enfermedad hepatobiliar o hemolítica.
La incidencia de la enfermedad pulmonar obstructiva crónica (EPOC), el cáncer de pulmón y la mortalidad por cualquier causa se rastrearon durante un período de 20 años.

Principales resultados:

Los niveles más altos de bilirrubina se asociaron con una menor incidencia de cáncer de pulmón, EPOC y mortalidad por cualquier causa tanto en hombres como en mujeres.
Un aumento de 0,1 mg/dL en la bilirrubina se relacionó con una disminución del 8-11% en la incidencia de cáncer de pulmón y una disminución del 6% en la incidencia de EPOC en hombres.
Los análisis ajustados confirmaron estas relaciones inversas, lo que indica un efecto protector de los niveles más altos de bilirrubina.

Conclusiones:

Dentro del rango normal, los niveles más altos de bilirrubina sérica se correlacionan con un menor riesgo de enfermedades respiratorias.
El aumento de la bilirrubina se asocia con una menor mortalidad por todas las causas en la población adulta en general.
Estos hallazgos sugieren un potencial papel protector de la bilirrubina contra las afecciones respiratorias y la mortalidad.

Más Videos Relacionados

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Noninvasive Sampling of Mucosal Lining Fluid for the Quantification of In Vivo Upper Airway Immune-mediator Levels

Published on: August 7, 2017

An Improved and High Throughput Respiratory Syncytial Virus RSV Micro-neutralization Assay

An Improved and High Throughput Respiratory Syncytial Virus RSV Micro-neutralization Assay

Published on: January 26, 2019

Videos de Conceptos Relacionados

Factors Affecting Respiration

Factors Affecting Respiration

Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:

Respiratory Assessment: Purpose and Indications

Respiratory Assessment: Purpose and Indications

Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...

Acute Respiratory Failure-II

Acute Respiratory Failure-II

Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...

Serum Studies: Renal Function Tests

Serum Studies: Renal Function Tests

Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.

Jaundice

Jaundice

Jaundice, or icterus, is the yellow discoloration of the skin, sclerae, and mucous membranes. It happens when plasma bilirubin levels rise above 2.5-3 mg/dL, leading to bilirubin deposition in tissue.Bilirubin is a byproduct of hemoglobin degradation. In macrophages, hemoglobin breaks down into globin and heme. Globin is converted into amino acids, while heme is turned into biliverdin by heme oxygenase, which is then reduced to unconjugated bilirubin by biliverdin reductase.Unconjugated...