Study: Pleural mesothelioma risk plateaus

8 Aug 2017 by under Research/Treatment

Chrysotile SEM photo 1 100x100 Study: Pleural mesothelioma risk plateaus Researchers in Italy have begun to hone in on exactly how long exposure victims are at risk of contracting certain types of mesothelioma and cancers associated with the known carcinogen. While the risk of contracting malignant pleural mesothelioma, which affects the lining of the lungs, seems to plateau over time, the risk of lung cancer, ovarian cancer and , which affects the lining of the abdomen, does not.

Researchers examined data from 43 previously studied groups of asbestos-exposed individuals, involving 51,801 people in the study, according to Surviving Mesothelioma. Those involved worked with asbestos in some capacity, including as shipbuilders, and the study tracked their health from 1970 to 2010.

The study states, “Mortality was significantly increased for all deaths, all malignancies combined, pleural and peritoneal malignancies, lung and ovarian cancer, and asbestosis.” However, after about 40 years, the chance of contracting pleural mesothelioma plateaued and the chances of contracting “two other types of cancer associated with asbestos exposure—cancer of the larynx and digestive tract—did not increase over time,” according to the news source.

Asbestos is a group of six silicate minerals that were once used in a variety of manufacturing and construction processes. When airborne, asbestos fibers can become permanently lodged in internal tissues and cause inflammation and irritation that can cause malignancies. Mesothelioma has one of the longest latency periods, the period between exposure and disease development, of any cancer. This recent study suggests the latency period may not be indefinite for all asbestos-related cancers, though. “The study confirmed the increased risk for cancer of the lung, ovary, pleura and peritoneum but not of the larynx and the digestive tract. Pleural cancer mortality reached a plateau….coherently with recent reports,” the study concludes.

 

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