Occupational Exposure to Engine Exhausts and Prostate Cancer Risk
Christine Barul1, Marie-Claude Rousseau2,3,4, Marie-Elise Parent5,6
1Inserm, EHESP, Université de Rennes, IRSET (Institut de recherche en santé environnement et travail) - UMR_S 1085, 97100, Pointe À Pitre, France.
Environmental Health : a Global Access Science Source
|July 27, 2025
Summary
Occupational exposure to certain engine exhausts (EEs), particularly from diesel and leaded gasoline, may increase the risk of aggressive prostate cancer. Further research is needed to confirm these findings and understand the mechanisms involved.
Area of Science:
- Environmental Health
- Occupational Epidemiology
- Oncology
Background:
- Engine exhausts (EEs) are known carcinogens and can possess hormone-modulating properties.
- These properties suggest a potential role in prostate cancer development.
Purpose of the Study:
- To investigate the association between occupational exposure to various engine exhausts (EEs) and prostate cancer risk.
- To differentiate risks for overall prostate cancer versus aggressive forms of the disease.
Main Methods:
- A population-based case-control study in Montreal, Canada, involving 1,924 prostate cancer cases and 1,989 controls.
- Detailed occupational histories were collected, and industrial hygienists assessed exposure to EEs from fuels like diesel and gasoline.
- Statistical models estimated odds ratios (ORs) and confidence intervals (CIs), adjusting for confounders and a 5-year latency period.
Main Results:
- No significant associations were found between EEs and overall prostate cancer risk.
- Suggestive evidence indicated increased risk for aggressive prostate cancer with exposure to any diesel EE (OR=1.24) and light-duty diesel EE.
- Exposure to leaded gasoline EE showed a potential association with aggressive prostate cancer, though attenuated after full adjustment.
Conclusions:
- Occupational exposure to diesel and leaded gasoline engine exhausts may play a role in the development of aggressive prostate cancer.
- Findings were independent of prostate cancer screening practices.
More Related Videos
09:33Formation of Covalent DNA Adducts by Enzymatically Activated Carcinogens and Drugs In Vitro and Their Determination by 32P-postlabeling
Published on: March 20, 2018
13.9K
07:25A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
13.2K
Related Concept Videos
02:59Cancer Prevention
6.3K
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...
Some...
6.3K
01:20Disorders of the Male Reproductive System
569
Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
569
01:12Relative Risk
334
Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
334
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
01:25Mutagenicity and Carcinogenicity
1.4K
Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
1.4K
01:09Odds Ratio
253
The odds ratio (OR) is a statistical measure used extensively in epidemiology and research to quantify the strength of association between exposure and outcome across different groups. Unlike relative risk, which compares the probabilities of an event occurring, the odds ratio compares the odds of an event occurring in the exposed group to the odds of it occurring in the unexposed group. The odds, in this context, are calculated as the probability of the event happening divided by the...
253