posted on Jul, 7 2009 @ 03:10 AM
Smokers who are celebrating this new info should think twice as it may be premature.
A 1996 landmark scientific study from University of California, San Francisco has found indisputable proof linking smoking and lung cancer. It is the
research in the tumor suppressor gene called p53 that demonstrated the direct genetic link between lung cancer and tobacco smoking. P53 is a gene that
that helps prevent cancerous growth. When the P53 gene is damaged, it can lead to a uncontrolled proliferation of cancerous cells. Its mutation has
been linked to 60 per cent of lung cancers.
It is the component of tobacco smoke, benzoapyrene, which is released into cigarette smoke from the tars in the tobacco that results in the mutation
of the gene.
The tobacco companies have for years taken an interest in this gene, and have in fact, funded research to cast doubt on the damming study. It actually
used it ties with the editor of a peer-reviewed journal to publish its contradictory findings without proper disclosure of the editor's connection
with the tobacco industry.
Subsequently, other scientists have turned up refuting the UCSF report, but in almost all cases, were found to have ties to the tobacco companies and
were not properly disclosing their connections. The tobacco industry attempts at subverting uncomplimentary studies have been well documented.
As for comparing, heavy smoking countries like Japan and Greece with low incidence of lung cancer, it could also be diet related. After all, both
countries have diet rich in anti-oxidants, like consumption of green tea in the case of Japan and Mediterranean diet in the latter. Anti-oxidants
protect against cancer and a host of other ailments.
Cancer is an opportunist disease. While your immune system is strong, the body has the ability to repair damaged DNA and you can be reasonably cancer
free even if you are a heavy smoker. However, when your immune system is weak, for one reason or another, that is when you have got to watch out.
Personally, I have known 2 smokers, who were at one stage thought themselves invincible. Both had contracted an innocuous cold or flu, but found their
coughing persisted even after they have recovered. Both were diagnosed with inoperable lung cancer, and they both died shortly after.
[edit on 7-7-2009 by A Conscience]