Video Experimental Relacionado
Updated: Sep 9, 2025
10:23
Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
Published on: December 1, 2023
538
La proximidad a una instalación de tratamiento térmico de residuos peligrosos altera la fisiología humana: un estudio
Avinash Kumar1,2, Chuqi Guo3, Qudus Sarumi4
1Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States.
Experimental biology and medicine (Maywood, N.J.)
|September 2, 2025
Resumen
La exposición a las emisiones de la instalación de tratamiento térmico de Colfax puede afectar a la salud humana. Los residentes más cercanos a la instalación mostraron elevados marcadores de estrés oxidativo y vías metabólicas alteradas, lo que indica riesgos potenciales para la salud.
Área de la Ciencia:
- Salud del medio ambiente
- Metabolomía
- Toxicología
Sus antecedentes:
- La combustión abierta/detonación abierta (OB/OD) es un método de eliminación de residuos explosivos que liberan contaminantes nocivos.
- La instalación de tratamiento térmico (TT) de Colfax, Louisiana, es el único sitio comercial de OB/OD de la nación, lo que plantea preocupaciones ambientales y de salud pública.
- Comprender los impactos en la salud de las emisiones de las instalaciones de TT es fundamental para el bienestar de la comunidad.
Objetivo del estudio:
- Para investigar las alteraciones metabólicas en los residentes cerca de una instalación de TT.
- Identificar los posibles biomarcadores de la exposición a las emisiones de TT.
- Explorar la relación entre la proximidad, el sexo, la raza y los cambios metabólicos.
Principales métodos:
- Análisis metabolómico no dirigido de muestras de orina de 51 residentes locales.
- Cromatografía líquida de ultra alto rendimiento junto con espectrometría de masas de alta resolución (UHPLC-HRMS) para la identificación de metabolitos.
- Análisis estadístico para comparar perfiles de metabolitos basados en la proximidad, el sexo y la raza.
Principales resultados:
- 217 metabolitos identificados, con diferencias significativas basadas en la proximidad a la instalación de TT.
- Marcadores elevados de estrés oxidativo (por ejemplo, sulfonamida de glutatión) y equilibrio redox alterado (relación GSH/GSSG) en residentes más cercanos.
- Perturbaciones en las vías metabólicas clave, incluido el metabolismo energético, el metabolismo de los aminoácidos, la glucólisis y el ciclo del ácido cítrico.
Conclusiones:
- La exposición a las emisiones de la instalación TT se asocia con alteraciones metabólicas significativas y un aumento del estrés oxidativo en los residentes cercanos.
- Los perfiles metabólicos difieren según el sexo y la raza, lo que sugiere interacciones complejas entre factores intrínsecos y ambientales.
- Se necesitan más investigaciones para determinar las consecuencias a largo plazo para la salud y desarrollar estrategias de mitigación.
Videos de Conceptos Relacionados
01:26Toxic Reactions: Overview
1.2K
When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
1.2K
01:36Types of Toxins
2.0K
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
2.0K
01:28Factors Affecting Body Temperature
6.0K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
6.0K
01:26Requirements for Human Life
10.3K
The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
10.3K
02:59Biological Effects of Radiation
15.9K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
15.9K
01:19Homeostatic Imbalances in Body Temperature
191
Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
191