Thoughts inspired by reading the correspondence: Hughes and Weill vs. Roggli et al., April 1994

Our plain-English summary of Thoughts inspired by reading the correspondence: Hughes and Weill vs. Roggli et al., April 1994, by M. Greenberg (American Journal of Industrial Medicine, 1994).

The study

• Author: M. Greenberg
• Journal: American Journal of Industrial Medicine
• Published: 1994;26(6):843-4
• Read it: PubMed · Publisher

In plain English

This short article was a commentary, an opinion piece, written in response to an April 1994 exchange of letters between Hughes and Weill and Roggli and colleagues. It reported no new study or data. The author argued that different asbestos fiber size distributions might be responsible for disease of the airways, of the lung tissue (parenchyma), and of the pleura. Yet dust measurements had historically been tied to standards concerned only with lung tissue disease. The author noted reports that fibers found near the pleura are short, fine and commonly serpentine. The author criticized the use of lung tissue counts of chrysotile as an indicator of past dose, given the fiber's acknowledged short half life in tissue. The author also said that attributing pleural tumors to amphibole in the lung, rather than to chrysotile under the pleura, required better support. According to the author, exposure standards reduced disease, but not as effectively as first believed. The author concluded that, in epidemiology, mathematics is necessary but not sufficient.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: commentary (opinion piece responding to published correspondence); no new data
• Who was studied: No study population; the commentary responds to the April 1994 correspondence between Hughes and Weill and Roggli et al.
• Exposure: Asbestos dust in general, discussed in terms of fiber size, with particular attention to chrysotile versus amphibole; no exposure was measured
• Main results:
  • The author argued (no data presented) that different asbestos fiber size distributions might be responsible for airway, parenchymal and pleural disease
  • The author argued that asbestos dust hygiene measurements had historically been tied to standards concerned only with lung parenchymal disease
  • The author noted that the asbestos fraction found near or in the pleura is reported to be short fine fibers, commonly serpentine
  • The author criticized using lung parenchyma counts of chrysotile as indicators of past dose, given the fiber's acknowledged short half life in tissue
  • The author stated that attributing pleural tumors to amphibole in the parenchyma rather than to chrysotile in subpleural tissue requires better support
  • The author stated that asbestos exposure standards reduced worker exposures and asbestos-related diseases, but not as effectively as initially believed
  • The author argued that numerical exposure limits and predicted health costs, when based on mathematical manipulation of doubtful data, lead to a suspension of critical faculties
• The authors' conclusion: The author concluded that in epidemiology mathematics is necessary but not sufficient, and that mineralogists and epidemiologists must broaden their expertise

Topics

The National Library of Medicine indexes this study under subjects our site covers: Lung cancer.

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• Response to Roggli et al. (2020) "Talc and mesothelioma: mineral fiber analysis of 65 cases with clinicopathological correlation" — T. Tran, D. Egilman, et al. (2020)
• Correspondence regarding the article "The asbestos fibre burden in human lungs: new insights into the chrysotile debate" — I.S. Feder, I. Tischoff, et al. (2017)
• Correspondence regarding the article "The asbestos fibre burden in human lungs: new insights into the chrysotile debate" — L.C. Oliver, F. Belpoggi, et al. (2017)

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