www.jnrbm.com/content/5/1/17/comments/Mozilla/ -
[Cached Version]
Published on: 8/15/2007
Last Visited: 11/6/2007
Kamal Chaouachi
Journal of Negative Results in BioMedicine 2006, 5:17doi:10.1186/1477-5751-5-17
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In response to the World Health Organization (WHO) Study Group on Tobacco Product Regulation (TobReg) Advisory Note entitled Waterpipe Tobacco Smoking: Health Effects, Research Needs and Recommended Actions by Regulators (WHO, 2005), Dr. Kamal Chaouachi published a commentary that purports to examine critically the Advisory Note.
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Several potential health concerns raised in the Advisory Note were addressed by Dr. Chaouachi.Whereas he presumes that questions about health concerns have been satisfactorily answered and/or that the Advisory Note is wrong (e.g., concerning quantitative and qualitative aspects of waterpipe toxicant emissions), the Advisory Note calls for further empirical research.It is noteworthy that few, if any, of his 14 citations are peer-reviewed, an important criterium of scientific studies.
Elements of Dr. Chaouachi's critique rely on his apparent misunderstanding of the pharmacology of tobacco use and of toxicology in general.
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It is possible that Dr. Chaouachi was referring to the tobacco combustion temperature at which the tar is produced.In general, it has been found that mutagenicity increases with tobacco pyrolysis temperature.
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Dr. Chaouachi characterizes inaccurately the Advisory Note's summary of the history of waterpipes, their physical nature, and patterns of use.Additionally, his account of patterns of use in various societies, including at least some use by children, is at odds with published surveys and accounts referenced by the Advisory Note.In several discussions (e.g., tar yield) the commentary counters the conclusions and peer-reviewed scientific citations of the Advisory Note with references to unpublished work, including Dr. Chaouachi's own graduate thesis.
There are many additional deficiencies in Dr. Chaouachi's commentary, but it is beyond the scope of this letter to address all of them.
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We are writing to address a commentary (Chaouachi, 2006) regarding the WHO TobReg Advisory Note on waterpipe tobacco smoking (WHO, 2005).
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This patent application clearly represents a competing interest as defined by the journal and readers of Dr. Chaouachi's work should be informed of it.
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Billard, G., Chaouachi, K., De La Giraudiere, A-P. (2005).Hookah with simplified lighting.United States Patent Application Publication.Publication No.:2005/0279371 A1.Application number 11/148,194.
Chattopadhyay, A. (2000).Emporer Akbar as healer and his eminent physicians.Bulletin of the Indian Institute of the History of Medicine, 30, 151-158.
Chaouachi, K. (2006).
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Kamal Chaouachi (25 August 2007) Researcher and Consultant in Tobacco Control (Paris)
Dear Editor,
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Dr Kamal T. Chaouachi
Researcher and Consultant in Tobacco Control (Paris)
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No competing commercial interests, but co-inventor on patent application for "Hookah with simplified lighting (Billard, G., Chaouachi, K., De La Giraudiere, A-P. (2005).