Clear The Air News Tobacco Blog Rotating Header Image

July 10th, 2015:

British American Tobacco is ending operations in Chile

July 9 2015

British American Tobacco is closing its operations in Chile because of changes to the country’s tobacco law, the company announced Thursday.

The world’s No. 2 cigarette maker, which produces brands like Dunhill, Lucky Strike and Pall Mall, objects to changes that include banning additives like menthol and adding larger warnings to cigarette packs about the risks of smoking.

The Chilean unit of the company called the toughening of Chile’s tobacco law “unconstitutional and arbitrary.”

“We deeply regret what has been approved by the Senate, a decision that will affect thousands of Chileans who were working legally and responsibly for more than 100 years,” the company said in a statement.

British American Tobacco says the modifications approved by Chile’s Senate this week would affect its business and hurt a “significant number of farmers and workers” who produce and sell tobacco in the country.

The company, which has operated in Chile since 1909, says it’ll start the phase-out by firing 20 percent of its nearly 1,000 employees. It estimates about $400 million could be lost with the menthol ban and warning label changes.

Smoking tobacco might increase risk of schizophrenia, say researchers

Analysis of studies on smoking tobacco and psychosis, of which schizophrenia is most common type, suggests smoking may be causal factor in itself

Sarah Boseley Health editor

Smoking cigarettes might increase people’s risk of psychosis, say researchers who believe tobacco as well as cannabis could play a part in causing schizophrenia.

It has long been recognised that people suffering from psychosis tend to smoke more than most of the population, but it has generally been assumed they are self-medicating. “Having psychosis is a very distressing thing – hearing voices, having delusions,” said Dr James MacCabe from King’s Institute of Psychiatry, Psychology and Neuroscience, one of the authors of a new study.

“The argument goes, why wouldn’t people smoke to alleviate the distress?” They might hope it would help with the symptoms and their impaired thinking processes and possibly counter the side-effects of antipsychotic drugs, he said.

But an analysis of a number of studies on smoking tobacco and psychosis, published in the Lancet Psychiatry journal, now shows that smoking may be a causal factor in itself.

The researchers found that daily smokers had an increased risk of psychosis. More than half – 57% – of people arriving at mental health services with their first episode were smokers, which is nearly three times the normal occurrence in the population. Smokers experienced psychosis one year earlier than non-smokers.

“We can’t say that we have proof that cigarette smoking causes schizophrenia,” said Sir Robin Murray, professor of psychiatric research at King’s. “Indeed it is very difficult to point to any particular factor and say it causes schizophrenia. It is a bit like heart disease – there are a number of risk factors. You inherit some vulnerability and … are exposed to various things which increase the risk to your life.”

Cannabis is known to cause psychosis and schizophrenia. The authors say they could not be certain that all the studies they looked at had completely accounted for cannabis use. However, they are certain there is a modest effect caused by tobacco alone.

There are biologically plausible reasons why smoking may be linked to psychosis. “Excess dopamine is the best biological explanation we have for psychotic illnesses such as schizophrenia,” said Murray. “It is possible that nicotine exposure, by increasing the release of dopamine, causes psychosis to develop.” A number of other drugs can stimulate dopamine production, including amphetamines, cocaine and cannabis.

There are also genetic clues – a small number of DNA sequences (called SNPs) are known to be implicated in both schizophrenia and smoking.

“While it is always hard to determine the direction of causality, our findings indicate that smoking should be taken seriously as a possible risk factor for developing psychosis, and not dismissed simply as a consequence of the illness,” said MacCabe.

Prof Michael Owen, director of the Institute of Psychological Medicine and Clinical Neurosciences at Cardiff University, said this paper, together with a previous study carried out in Sweden, “make a pretty strong case that smoking is of causal relevance to schizophrenia”.

He hoped that further genetic investigation might help untangle the relationship. “The fact is that it is very hard to prove causation without a randomised trial, but there are plenty of good reasons already for targeting public health measures very energetically at the mentally ill,” he said.