Showing posts with label human health. Show all posts
Showing posts with label human health. Show all posts

Wednesday, December 12, 2018

Canada says Talc may be 'harmful to human health'




The government of Canada is considering prohibiting or restricting the use of talc in some products. The government "proposes that inhaling loose talc powders and using certain products containing talc in the female genital area may be harmful to human health." The announcement was made Wednesday on the Health Canada website.

The draft screening assessment will be published in the Canada Gazette, Part I, and will be open for public comment for 60 days, until February 6, 2019. The Risk Management Scope, which outlines the possible measures to manage the risks identified in the draft screening assessment, will also be open for public comment for the same 60-day period.

No action, such as warning labels or a ban, will be taken until this final assessment is published, according to news reports.

Draft assessment did not identify human health risks of concern from oral exposures, including talc in food and drugs; dermal exposures such as the application of talc-containing products to skin; or inhalational exposures from dry hair shampoo or pressed powder products, such as cosmetics like eye shadow and blush.  

However, the assessment did identify two exposure scenarios of potential concern to human health. 

One was inhalation of fine particles of talc during the use of loose powder, self-care products (eg, body powder, baby powder, face powder, foot powder), potentially resulting in damage to the lungs.   

The other scenario of concern was exposure of the female perineal area, which includes the genitals, to self-care products containing talc (e.g., body powder, baby powder, diaper and rash creams, genital antiperspirants and deodorants, body wipes, bath bombs), as this type of exposure has been associated with ovarian cancer in studies of the human population.

The controversy is over whether talc itself is a carcinogen, and the issue is complicated because talc is sometimes contaminated with asbestos (the two sometimes occur naturally together).  

The scientific community has not reached a consensus yet.

A recent review published in the European Journal of Cancer Prevention (Eur J Cancer Prev. 2008;17:139-146) concluded that “data collectively do not indicate that cosmetic talc causes ovarian cancer.”

Comments: For some, the controversy is on. The DCGI must come out with clear cut direction in this issue. But, in the meantime public should take their GP into confidence when using these products.


Dr KK Aggarwal
Padma Shri Awardee
President Elect Confederation of Medical Associations in Asia and Oceania   (CMAAO)
Group Editor-in-Chief IJCP Publications
President Heart Care Foundation of India
Immediate Past National President IMA

Tuesday, April 3, 2018

Areca nut is harmful to human health



Union Minister of State for Skill Development and Entrepreneurship Anant Kumar Hegde said that a delegation would meet Union Health Minister JP Nadda on April 4 and submit him documents that support medicinal properties of areca nut (The Hindu, March 31, 2018).

Heart Care Foundation of India however says that evidence has shown an association between chewing areca nut or betel quid (areca nuts wrapped in betel leaves) and many cancers and a message should not be given to the public that areca nut is a medicine.

There is adequate evidence in published literature to show the harmful effects of areca nuts on health.

·         Chewing of areca nuts or betel quid (areca nuts wrapped in betel leaves), which is widespread in certain regions of Asia, has been implicated in the development of esophageal squamous-cell carcinoma (Eur J Cancer. 2012;48(5):655; West J Med. 1994;160(4):326).
·         Areca nut has a role in pathogenesis of oral submucous fibrosis. The mechanism may involve the release of copper, with resulting induction of collagen synthesis by fibroblasts (Lancet. 1997;349(9063):1447).
·         Betel nut chewing, which is widespread in certain regions of Asia, is an independent risk factor for the development of oral/oropharyngeal cancer (Int J Cancer. 2014;135(6):1433). 
·         Case control trials have suggested that Betel nut chewing, which is widespread in certain regions of Asia, may be an independent risk factor for the development of cirrhosis and hepatic cell carcinoma (Br J Cancer. 2001;84:709; Medicine (Baltimore). 2003;82:365;Medicine (Baltimore). 2004;83:176).
·         Betel quid chewing, a common practice in Southeast Asia, has also been associated with calcium oxalate and calcium phosphate kidney stones (Urol Res. 2006;34:239).


Messages such as this create a misconception in the public and encourage them to use something, which has been proven to be harmful to human health.