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Related Concept Videos

Other Pulmonary Disorders01:17

Other Pulmonary Disorders

2.0K
Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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Cancer Prevention02:59

Cancer Prevention

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
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Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

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Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
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Types of Toxins01:36

Types of Toxins

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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...
4.1K
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

2
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
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Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

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In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
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Related Experiment Video

Updated: Apr 18, 2026

Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters
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Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters

Published on: July 12, 2024

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Respiratory cancers and pollution.

N Ding1, N Zhou, M Zhou

  • 1Department of Respiratory, Xuzhou First People's Hospital, Xuzhou, Jiangsu, China. gmren87@163.com.

European Review for Medical and Pharmacological Sciences
|January 31, 2015
PubMed
Summary
This summary is machine-generated.

Respiratory cancers, including lung cancer, are a growing global health concern, significantly linked to household air pollution from solid fuel burning and occupational exposures. Reducing pollution is crucial for prevention.

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Area of Science:

  • Public Health
  • Environmental Health
  • Oncology

Background:

  • Cancer represents a significant global public health challenge, with increasing incidence in developing nations.
  • Respiratory cancers, affecting the lung, larynx, trachea, and bronchus, exhibit varying risks and outcomes based on location.
  • Household air pollution, particularly from solid fuel burning, is a major contributor to lung cancer, disproportionately affecting women and children in poverty.

Purpose of the Study:

  • To highlight the significant role of household and occupational air pollution as risk factors for respiratory cancers.
  • To emphasize the increasing burden of respiratory cancers in underdeveloped countries.
  • To underscore the need for preventive measures against air pollution sources.

Main Methods:

  • Review of existing literature on cancer incidence and risk factors.
  • Analysis of the impact of household air pollution (HAP) and occupational exposures on respiratory cancer development.
  • Examination of epidemiological data on cancer burden globally and in developing regions.

Main Results:

  • Household air pollution from solid fuel burning is linked to millions of deaths annually and elevated lung cancer risk.
  • Respiratory cancers, including nasopharyngeal and lung cancers, are strongly associated with pollution from coal and solid fuel combustion.
  • Beyond tobacco, exposure to asbestos, chromium, and arsenic are identified as significant risk factors for respiratory cancers.

Conclusions:

  • Air pollution, both household and occupational, is a critical and often underestimated risk factor for respiratory cancers.
  • Urgent preventive strategies focusing on improving living conditions and reducing occupational hazards are necessary to control the incidence of these cancers.
  • Public health interventions must address the multifaceted sources of air pollution contributing to the rising cancer burden.