smoking

Big tobacco fuels nicotine replacement addiction, UCSF study shows

Source: http://www.sfgate.com
Author: Lizzie Johnson
Date: August 17, 2017

Nicotine patches, lozenges, inhalers and gum have long been marketed as ways of helping addicts break the habit. But such products by themselves won’t do the job — something tobacco companies themselves have taken advantage of to boost their profits, new research from UCSF says.

Nicotine replacement therapy products, which have been sold over the counter at drugstores since 1996, are effective only when paired with counseling, according to a UCSF study released Thursday. Without that, relying on such products can actually make it harder to kick tobacco, the study found.

UCSF researchers who reviewed millions of pages of internal tobacco company documents said the firms have long known that such products by themselves don’t wean users off cigarettes, and market their own smokeless nicotine to keep users addicted.

“Those products should not be used unless they are done in the proper way,” said Stanton Glantz, an author of the study, professor of medicine at UCSF and the director of the Center for Tobacco Control Research and Education.

“The problem is, without the behavioral support, they actually inhibit quitting,” he said. “Unfortunately, a lot of people think they are making progress and quitting when that’s not so. That’s what tobacco companies have known for decades. They’re developing products under the guise of nicotine replacement therapy.”

Some of the biggest tobacco companies, including RJ Reynolds, Philip Morris and British American Tobacco, have developed nicotine accessories. Many corner stores stock the products, some of them in brightly colored packages, next to chocolate bars and other candy near the cash register.

Medi-Cal and many private health insurance policies cover the cost of quitting aids. State-subsidized insurance will pay for two annual courses of treatment with pills such as Chantix and Zyban, Nicorette lozenges, Nicorette gum and NicoDerm CQ Patches.

But people are more likely to use those products as complements to smoking — at work or in airplanes when cigarettes are banned — instead of as a tool to quit, the UCSF study found. Nicotine replacement products can be effective if people combine them with counseling and consultation with a doctor, but the majority of consumers don’t use them that way, researchers said.

Randomized clinical trials cited in the study showed that people who went to counseling and tapered their use of nicotine replacement therapy products over time were successful. Those who didn’t were not.

A 2009 study in the BMJ — formerly known as the British Medical Journal — found that of the 2,767 smokers tested, only 6.75 percent were able to abstain from cigarettes for six months while using nicotine replacement therapy products.

Nicotine patches and gum were first approved by the U.S. Food and Drug Administration in 1984, and the tobacco industry originally saw them as a threat, the UCSF study said. By 1992, however, company executives determined such products would not help smokers quit, and that there was money to be made from them. By 2009, tobacco companies were selling their own nicotine patches, lozenges and e-cigarettes.

“It was surprising to discover the industry came to view NRT (nicotine replacement therapy) as just another product,” said Dorie Apollonio, an associate professor in clinical pharmacy at UCSF and lead author of the study. “The tobacco companies want people to get nicotine — and they’re open-minded about how they get it.”

Representatives of RJ Reynolds, Philip Morris and British American Tobacco did not respond to requests for comment.

Apollonio’s researchers analyzed 90 million pages of documents from seven tobacco companies dating back as far as 1960, obtained in litigation against the tobacco industry.

Those papers showed that the tobacco industry began developing its own nicotine replacement products after its research showed that some smokers used them in addition to tobacco.

“The way the marketing is framed, it is explicitly discouraging quitting,” Glantz said. “The tobacco companies know more about tobacco products than anybody else. Now they are selling these products in a way that protects their market. I do not think most health professionals are aware of this.”

But some are. Derek Smith, director of the San Francisco Department of Public Health’s Tobacco Free Project, said he encourages smokers to check with their pharmacists or doctors before trying a nicotine replacement therapy like a patch or pill.

“You can’t plop on a patch and expect to quit smoking,” he said. “It’s part of the arsenal to tackle this complicated addiction. Smokers know better than anyone how hard it is to quit. It takes eight or 10 times before it sticks. In my experience, they are really aware what a tough addiction it is and how a patch isn’t the magical solution.”

A free smoking cessation program offered by the city at San Francisco General Hospital funnels smokers through a seven-class session. The weekly meetings teach participants how to create a plan with a quit date and identify stressful situations that lead to smoking. Instructors teach them to drink more water and improve their diet to help cope with cravings.

Patches, gum and e-cigarettes can be useful tools, Smith said. It didn’t surprise him that the tobacco industry had started creating its own products.

“Those internal documents reveal their intentions,” he said. “It’s always fascinating to see how the tobacco industry is thinking. They have an opportunistic assessment of the market. It never ceases to amaze me.”

August, 2017|Oral Cancer News|

HPV-related oral cancers have risen significantly in Canada

Source: www.ctvnews.ca
Author: Sheryl Ubelacker, The Canadian Press

The proportion of oral cancers caused by the human papillomavirus has risen significantly in Canada, say researchers, who suggest the infection is now behind an estimated three-quarters of all such malignancies. In a cross-Canada study, published Monday in the Canadian Medical Association Journal, the researchers found the incidence of HPV-related oropharyngeal cancers increased by about 50 per cent between 2000 and 2012.

“It’s a snapshot of looking at the disease burden and the time trend to see how the speed of the increase of this disease (is changing),” said co-author Sophie Huang, a research radiation therapist at Princess Margaret Cancer Centre in Toronto.

Researchers looked at data from specialized cancer centres in British Columbia, Alberta, Ontario and Nova Scotia to determine rates of HPV-related tumours among 3,643 patients aged 18 years or older who had been diagnosed with squamous cell oropharyngeal cancer between 2000 and 2012.

HPV is the most common sexually transmitted infection worldwide. Most people never develop symptoms and the infection resolves on its own within about two years.

“In 2000, the proportion of throat cancer caused by HPV was estimated at 47 per cent,” said Huang. “But in 2012, the proportion became 74 per cent … about a 50 per cent increase.”

Statistics from a Canadian Cancer Society report last fall showed 1,335 Canadians were diagnosed in 2012 with HPV-related oropharyngeal cancer and 372 died from the disease.

HPV is the most common sexually transmitted infection worldwide. Most people never develop symptoms and the infection resolves on its own within about two years. But in some people, the infection can persist, leading to cervical cancer in women, penile cancer in men and oropharyngeal cancer in both sexes.

Most cases of HPV-related oral cancer are linked to oral sex, said Huang, noting that about 85 per cent of the cases in the CMAJ study were men.

HPV-related tumours respond better to treatment and have a higher survival rate than those linked to tobacco and alcohol use, the other major cause of oral cancer, she said, adding that early identification of a tumour’s cause is important to ensure appropriate and effective treatment.

While some centres in Canada routinely test oral tumours to determine their HPV status, such testing is not consistent across the country, the researchers say.

In the past, physicians generally tended to reserve tumour testing for cases most likely to be caused by HPV – among them younger males with no history of smoking and with light alcohol consumption – to prevent an unnecessary burden on pathology labs.

“Only as accumulating data have supported the clinical importance of HPV testing has routine testing been implemented in most (though not all) Canadian centres,” the researchers write.

The study showed that the proportion of new HPV-related oral cancers rose as those caused by non-HPV-related tumours fell between 2000 and 2012 – likely the result of steadily declining smoking rates.

Huang said males tend to have a weaker immune response to HPV than do females, which may in part explain the higher incidence of oral cancers linked to the virus in men.

HPV vaccines given to young people before they become sexually active can prevent infection – and the researchers say both boys and girls should be inoculated.

Currently, six provinces provide HPV immunization to Grade 6 boys as well as girls, with the other four provinces set to add males to vaccination programs this fall, said Huang.

“So vaccinating boys is very important because, if you look at Canadian Cancer Society statistics (for 2012), HPV- related oropharyngeal cancer in total numbers has already surpassed cervical cancers,” she said.
“The increase of HPV-related cancer is real, and it’s striking that there’s no sign of a slowdown.”

August, 2017|Oral Cancer News|

Calgary cancer patient asks why smokers are near hospitals if grounds are supposed to be ‘smoke-free’

Source: globalnews.ca
Author: Heather Yourex-West

At just 47-years-old, Tim Allsopp is battling throat cancer. He doesn’t smoke but during he’s his treatment, he says, he’s been exposed to second-hand cigarette smoke more often because he often passes by people smoking on his way to treatment at Calgary’s Tom Baker Cancer Centre.

“Everyday when we come to therapy, we notice that there’s people smoking outside the building,” Allsopp said. “That’s confusing to me because the policy states, no smoking on Alberta Health Services property, this includes buildings, grounds and parking lots.”

“I’m at the point now where I’m very susceptible to infection and that could land me in the emergency department in almost life threatening condition.”

While AHS has had a smoke-free hospital grounds policy for years, it doesn’t take long to spot people lighting up. AHS says it tries to enforce its policy, but it’s not easy.

WATCH: Smokers ignore no smoking signs in front of Winnipeg hospitals

“Our protective services people try to use an educational approach first but if that’s not successful, then they have the power to issue a ticket,” said Dr. Brent Friesen, lead medical officer of health for Alberta Health Services’ tobacco reduction strategy.

Friesen says the problem is that AHS can only issue tickets for people breaking either provincial law or city by-law, not AHS policy. That means, while AHS may say no smoking is allowed on hospital grounds, the province only requires people keep a five-metre distance from hospital doors.

“If they’re further than five metres away, the option that’s available for our protective staff is to charge the person with trespassing but that’s a cumbersome approach in terms of having to get a court order and it (also) starts to raise concerns in terms of what implications that might have for that individual, if they want to seek care in the future.”

It’s a similar situation for hospitals across the country. Provincial rules in B.C. require smokers keep a distance of six metres from hospital entrance ways, in Winnipeg eight metres is required and Ontario and Quebec require nine metres between hospital doors and anyone lighting up. Next year, however, Ontario will become the first province to ban smoking entirely on hospital grounds. Anyone caught violating the rule could face a $1,000 fine.

Friesen says Alberta Health Services would like Alberta’s provincial government to follow Ontario’s lead but Alberta health minister, Sarah Hoffman, says patients who are addicted to nicotine deserve compassion as well.

“I think its challenging who are living in hospital who may be in difficult health situations -maybe even at end of life – and to ask them to quit at that point would be very challenging for them but we do need to make sure that if they are going to be using substance that they do so without impacting other patients and staff.”

Teens drink less if they know alcohol causes cancer — but most don’t — study finds

Source: http://www.adelaidenow.com.au/
Author: Tim Williams, Education Reporter

Teens are less likely to drink if they know that alcohol is a major cause of cancer, but most are unaware of the link, a South Australian study has found. More than 2800 school students aged 12-17 were surveyed about their drinking behaviour by Adelaide University and South Australian Health and Medical Research Institute (SAHMRI) researchers.

Those aged 14-17 were deterred from drinking if they knew about the link between alcohol and cancer, but only 28 per cent of students were aware of the connection. Parental disapproval was another deterrent, while smoking and approval from friends resulted in higher rates of drinking. Most students had tried alcohol by age 16 and a third drank at least occasionally. Wealthy students were more likely to drink.

Cancer Council SA chief executive Lincoln Size said there was clear evidence drinking caused cancers of the mouth, pharynx, larynx and oesophagus, as well as bowel cancer in men and breast cancer in women. It likely raised the risk of liver cancer and bowel cancer in women too.

“Any level of alcohol consumption increases the risk of developing an alcohol-related cancer; the level of risk increases in line with the level of consumption,” he said.

“This latest evidence highlights the need to educate young people about the consequences of alcohol consumption and for parents to demonstrate responsible drinking behaviour.

“We need to get the message through that what may be considered harmless fun actually has lifelong consequences.”

Lead author Jacqueline Bowden, a behavioural scientist with both the uni and SAHMRI, said drinking patterns were often set in adolescence.

“With alcohol contributing to four of the top five causes of death in young people, and a leading cause of cancer in our community, it’s important for us to better understand drinking behaviour among young people so we can help to prevent or delay it,” Ms Bowden said.

“One of the major messages from our study is that parents have more influence on their teenagers’ decisions regarding alcohol than they probably realise.

“Parental behaviour and attitudes towards alcohol really do make a difference, and can help prevent children from drinking at an early age.

“Many parents believe providing their children with alcohol in the safe environment of their home teaches them to drink responsibly.

“However, the weight of evidence suggests that this increases consumption, and is not recommended.

“Our results also found that those adolescents who thought they could buy alcohol easily were more likely to drink regularly. The issue of availability — including price — and marketing of alcohol in the community is a major hurdle to be overcome.”

The findings of the study, which was supported by Cancer Council SA and the State Government, have been published in the journal BMC Public Health.

Trans oral robotic surgery saves public Australian hospital patients from disfiguring procedure

Source: www.smh.com.au
Author: Kate Aubusson

The cancerous tumour growing at the back of Brian Hodge’s tongue was about as hard-to-reach as cancers get. The 73-year-old was told he’d need radical, invasive surgery to remove the 50¢-sized tumour. His surgeon would make an incision almost from ear-to-ear and split his jaw in two for the 10-12 hour surgery.

After five days in intensive care, another three weeks in hospital and four to six months recovery, re-learning how to eat and talk Mr Hodge would have been left with disfiguring scars, and a voice that he may not recognise as his own.

“My kids didn’t want me to have it,” Mr Hodge said. “But I’m not one to throw in the towel … Then the unbelievable happened,” he said.

Mr Hodge became one of the first public patients to undergo robotic surgery for head, neck and throat cancer at Nepean Hospital, the state’s only hospital offering the service to patients who can’t afford private healthcare.

Mr Hodge’s surgeon, Associate Professor Ronald Chin, performed the trans oral robotic surgery (TORS) by guiding the robot’s arm into his patient’s open mouth to remove the cancerous tumour.

“I went in on Monday morning for the surgery and I was discharged Tuesday night,” Mr Hodge said of his surgery performed on June 19.

“It’s just amazing. Two days compared to six months recovering.

“What’s got me is that before it was only available to people who could pay the big money. I’ve worked all my life, I’ve paid tax and I think, why can’t we people get this surgery as well,” he said.

TORS is available for private health patients in other NSW hospitals, but its use at a major tertiary hospital in Sydney’s west – surrounded by suburbs with some of the highest smoking rates and lowest private health insurance rates in Sydney – was significant.

“It’s an enormous step forward to be able to offer this state-of-the-art treatment with such obvious benefits both cost-wise and [avoiding] disfigurement-wise … to patients who may not have previously had the resources to access it,” Dr Chin said.

The da Vinci robot Dr Chin used was the same one Nepean Hospital’s urological surgeons use to perform prostatectomies on prostate cancers. The TORS procedure takes about 45 minutes.

“Traditionally surgery is incredibly invasive. We had to make very large incisions across the neck, then lift the skin well above the lower lip and cut the jaw open,” said the otolaryngology, head and neck surgeon.

“We’re talking about a massive operation. Then reconstruction is very difficult.

“Not only did people face a horrendously long operation, they had to deal with long post-operative recovery and rehabilitation to regain speech, language, voice and the ability to eat and drink.

“With TORS, patients can go home the next day [with minimal discomfort],” he said.

More than 400,000 cases of oropharyngeal squamous cell carcinomas are diagnosed each year worldwide. The five-year survival rate for head and neck cancer in Australia is 69 per cent, according to government estimates.

Nepean Hospital would see between 10 and 15 patients with head and neck cancers per year who would be suitable for TORS, Dr Chin said. The cancerous tumours, usually linked to smoking and excessive drinking as well as the human papilloma virus, were “extraordinarily difficult to access, almost impossible”, said Dr Chin.

Robotic surgery costs significantly more than traditional surgeries. But Dr Chin said TORS could save the public health system up to $100,000 per procedure, where patients no longer needed to spend days in ICU, costing more than $3000 per night, or weeks in hospital. The robotic surgery is primarily indicated for patients with oropharyngeal carcinomas of up to four centimetres in size. Roughly one-third of TORS patients will not need chemo and radiotherapy.

“The early evidence available on trans oral robotic surgery for oropharyngeal cancer is promising,” said Dr Tina Chen, medical and scientific adviser at the Cancer Institute NSW.

“However, higher-quality research is needed to definitively say whether it means better clinical outcomes for patients, compared to other treatments already available,” she said.

There was currently no high-quality evidence from randomised controlled trials comparing TORS to chemotherapy and radiotherapy for these types of cancers, a 2016 Cochrane review concluded. It noted “data are mounting”.

Mr Hodge will soon be able to swap the pureed food he has eaten since the day after his surgery for his favourite meal, barbecue chicken, and the avid karaoke singer is already planning his first post-surgery crooning set-list. First, Engelbert Humperdinck’s Please Release Me, and the song he has been singing to his wife for decades, Anne Murray’s Could I Have This Dance.

House Committee Looks to Dilute Tobacco Control Act

Source: www.medpagetoday.com
Date: July 12, 2017
Author: Salynn Boyles

The U.S. House Appropriations Committee made a move Wednesday to greatly weaken the FDA’s authority to regulate tobacco products, including flavored cigars and electronic cigarettes, and health advocacy groups were quick to condemn it.

The committee approved a rider to the agriculture funding bill that would exempt certain cigars from FDA’s authority and weaken its regulatory oversight over e-cigarettes, little cigars, and hookah tobacco.

Prior to the vote, the House committee defeated an amendment by Rep. Nita Lowey (D-N.Y.) to remove language from the bill that will effectively eliminate FDA’s authority to review the health hazards of thousands of tobacco products.

A second rider would exempt from FDA authority certain cigars, including many that are cheap, flavored and are most likely to appeal to children, said American Lung Association (ALA) President Harold Wimmer.

“These dangerous riders were added to this bill for the benefit of the tobacco industry and come at a time when e-cigarettes are the most commonly used tobacco product among kids,” Wimmer said in a written press statement.

The riders are similar to those passed by the House Appropriations Committee last year, but the language restricting FDA’s authority under the Tobacco Control Act was dropped from the final FY2017 bill later in the appropriations process. New language in the FY2018 bill does require the FDA to develop standards for the flavors added to e-cigarettes.

ALA spokesperson Erika Sward told MedPage Today that it is not clear if the riders will suffer the same fate this time around.

“Last year there was a President committed to the Tobacco Control Act in the White House,” she said. “This year not only do you have the House attempting to undermine the Tobacco Control Act, but you also have the FDA delaying the deeming rule.”

Nancy Brown, CEO of the American Heart Association, said the cigar rider exempting certain cigars from FDA regulation was particularly troubling.

“Our association strongly believes that the FDA should regulate all products, since tobacco in any form presents health risks. Further, we are particularly concerned that this could create a loophole that would allow tobacco manufacturers to manipulate their products to evade the agency’s oversight,” she said in a written statement.

Brown noted that the tobacco product grandfather rider could allow thousands of tobacco products to skip FDA review.

“While we appreciate that House members included a requirement that the FDA develop a product standard for flavors in e-cigarettes, changing the grandfather date puts e-cigarette users’ health at risk,” she said.

Chris Hansen, president of the American Cancer Society Action Network, charged that the legislation would benefit the cigar and e-cigarette industries at the expense of the nation’s public health.

“Congress made a commitment to protect the health of the American people when it passed the Tobacco Control Act. Today’s committee action is a serious breach of that promise,” he said.

July, 2017|Oral Cancer News|

Mayo Clinic Q and A: Throat cancer symptoms

Source: newsnetwork.mayoclinic.org
Author: Dr. Eric Moore, Otorhinolaryngology, Mayo Clinic

DEAR MAYO CLINIC: Are there early signs of throat cancer, or is it typically not found until its late stages? How is it treated?

ANSWER: The throat includes several important structures that are relied on every minute of the day and night to breathe, swallow and speak. Unfortunately, cancer can involve any, and sometimes all, of these structures. The symptoms of cancer, how early these symptoms are recognized and how the cancer is treated depend on which structures are involved.

All of the passageway between your tongue and your esophagus can be considered the throat. It includes three main areas. The first is the base of your tongue and tonsils. These, along with the soft palate and upper side walls of the pharynx, are called the oropharynx. Second is the voice box, or larynx. It consists of the epiglottis — a cartilage flap that helps to close your windpipe, or trachea, when you swallow — and the vocal cords. Third is the hypopharynx. That includes the bottom sidewalls and the back of the throat before the opening of the esophagus.

Tumors that occur in these three areas have different symptoms, behave differently and often are treated differently. That’s why the areas of the throat are subdivided into separate sections by the head and neck surgeons who diagnose and treat them.

For example, in the oropharynx, most tumors are squamous cell carcinoma. Most are caused by HPV, although smoking and alcohol can play a role in causing some of these tumors. Cancer that occurs in this area, particularly when caused by HPV, grows slowly ─ usually over a number of months. It often does not cause pain, interfere with swallowing or speaking, or have many other symptoms.

Most people discover cancer in the oropharynx when they notice a mass in their neck that’s a result of the cancer spreading to a lymph node. Eighty percent of people with cancer that affects the tonsils and base of tongue are not diagnosed until the cancer moves into the lymph nodes.

This type of cancer responds well to therapy, however, and is highly treatable even in an advanced stage. At Mayo Clinic, most tonsil and base of tongue cancers are treated by removing the cancer and affected lymph nodes with robotic surgery, followed by radiation therapy. This treatment attains excellent outcomes without sacrificing a person’s ability to swallow.

When cancer affects the voice box, it often affects speech. People usually notice hoarseness in their voice soon after the cancer starts. Because of that, many cases of this cancer are detected at an early stage. People with hoarseness that lasts for six weeks should get an exam by an otolaryngologist who specializes in head and neck cancer treatment, as early treatment of voice box cancer is much more effective than treatment in the later stages.

Early voice box cancer is treated with surgery — often laser surgery — or radiation therapy. Both are highly effective. If left untreated, voice box cancer can grow and destroy more of the larynx. At that point, treatment usually includes major surgery, along with radiation and chemotherapy ─ often at great cost to speech and swallowing function.

Finally, cancer of the hypopharynx usually involves symptoms such as pain when swallowing and difficulty swallowing solid food. It is most common in people with a long history of tobacco smoking and daily alcohol consumption. This cancer almost always presents in an advanced stage. Treatment is usually a combination of surgery, chemotherapy and radiation therapy.

If you are concerned about the possibility of any of these cancers, or if you notice symptoms that affect your speech or swallowing, make an appointment for an evaluation. The earlier cancer is diagnosed, the better the chances for successful treatment. — Dr. Eric Moore, Otorhinolaryngology, Mayo Clinic, Rochester, Minnesota

Novel vaccine therapy can generate immune responses in patients with HPV-related head and neck cancer

Source: www.news-medical.net
Author: staff

A novel vaccine therapy can generate immune responses in patients with head and neck squamous cell carcinoma (HNSCCa), according to researchers at the Abramson Cancer Center of the University of Pennsylvania. The treatment specifically targets human papillomavirus (HPV), which is frequently associated with HNSCCa, to trigger the immune response. Researchers will present the results of their pilot study during the 2017 American Society of Clinical Oncology Annual Meeting in Chicago (Abstract #6073).

HNSCCa is a cancer that develops in the mucous membranes of the mouth, and throat. While smoking and tobacco use are known causes, the number of cases related to HPV infection – a sexually transmitted infection that is so common, the Centers for Disease Control says almost all sexually active adults will contract it at some point in their lifetimes – is on the rise. The CDC now estimates 70 percent of all throat cancers in the United States are HPV-related. Sixty percent are caused by the subtype known as HPV 16/18.

“This is the subtype we target with this new therapy, and we’re the only site in the country to demonstrate immune activation with this DNA based immunotherapeutic vaccine for HPV 16/18 associated head and neck cancer,” said the study’s lead author Charu Aggarwal, MD, MPH, an assistant professor of Hematology Oncology in the Perelman School of Medicine at the University of Pennsylvania.

The vaccine is delivered as an injection of antigens – which leads the immune system to start producing antibodies and activate immune cells. At the time of injection, physicians use a special device to deliver a pulse of electricity to the area, which stimulates the muscles and speeds the intake of the antigens. Aggarwal noted that this study represents a multidisciplinary approach involving the lab and the clinic.

“This is truly bench-to-bedside and shows the value of translational medicine within an academic medical center,” Aggarwal said.

Penn researchers treated 22 patients with the vaccine. All of the patients had already received therapy that was intended to be curative – either surgery or chemotherapy and radiation. When doctors followed up an average of 16 months later, 18 of those patients showed elevated T cell activity that was specific to HPV 16/18. All of the patients in the study are still alive, and none reported any serious side effects.

“The data show the therapy is targeted and specific, but also safe and well-tolerated,” Aggarwal said.

Because of the positive activity, Aggarwal says the next step is to try this therapy in patients with metastatic disease. A multi-site trial will open soon that combines the vaccine with PD-L1 inhibitors, which target a protein that weakens the body’s immune response by suppressing T-cell production.

Study reveals high environmental cost of tobacco

Source: www.cnn.com
Date: May 31st, 2017
Author: Jacopo Prisco

Details of the environmental cost of tobacco are revealed in a study released Wednesday by the World Health Organization, adding to the well-known costs to global health, which translate to a yearly loss of $1.4 trillion in health-care expenses and lost productivity.

From crop to pack, tobacco commands an intensive use of resources and forces the release of harmful chemicals in the soil and waterways, as well as significant amounts of greenhouse gases. Its leftovers linger, as tobacco litter is the biggest component of litter worldwide.

“Tobacco not only produces lung cancer in people, but it is a cancer to the lungs of the Earth,” said Dr. Armando Peruga, who previously coordinated the WHO Tobacco Free Initiative and now works as a consultant. He reviewed the new report for the WHO.

Commercial tobacco farming is a worldwide industry that involves 124 countries and occupies 4.3 million hectares of agricultural land. About 90% of it takes place in low-income countries, with China, Brazil and India as the largest producers.

Because tobacco is often a monocrop — grown without being rotated with other crops — the plants and the soil are weak in natural defenses and require larger amounts of chemicals for growth and protection from pests.

“Tobacco also takes away a lot of nutrients from the soil and requires massive amounts of fertilizer, a process that leads to degradation of the land and desertification, with negative consequences for biodiversity and wildlife,” Peruga said.

The use of chemicals directly impacts the health of farmers, 60% to 70% of whom are women. This is especially prominent in low- and middle-income countries, where some compounds that are banned in high-income countries are still used.

300 cigarettes = one tree

Farming also uses a surprisingly large amount of wood, rendering tobacco a driver of deforestation, one of the leading causes of climate change.

About 11.4 million metric tonnes of wood are utilized annually for curing: the drying of the tobacco leaf, which is achieved through various methods, including wood fires. That’s the equivalent of one tree for every 300 cigarettes, or 1.5 cartons.

This adds to the impact of plantations on forest land, which the study describes as a significant cause for concern, citing “evidence of substantial, and largely irreversible, losses of trees and other plant species cause by tobacco farming.”

Deadly gases

In 2012, 967 million daily smokers consumed approximately 6.25 trillion cigarettes worldwide, the WHO estimates.”That means about 6,000 metric tones of formaldehyde and 47,000 metric tonnes of nicotine are released into the environment,” Peruga said.

Tobacco smoke contains about 4,000 chemicals, at least 250 of which are known to be harmful. It also contains climate-warming carbon dioxide, methane and nitrous oxides. “The combination of greenhouse gases from combustion is equivalent to about 1.5 million vehicles driven annually,” Peruga said.

Secondhand smoke is particularly deadly: It contains twice as much nicotine and 147 times more ammonia than so-called mainstream smoke, leading to close to 1 million deaths annually, 28% of them children.

Some of these pollutants remain in the environment (and our homes) as “third-hand smoke,” accumulating in dust and surfaces indoors, and in landfills. Some, like nicotine, even resist treatment, polluting waterways and potentially contaminating water used for consumption, the study notes.

Non-biodegradable litter

Tobacco litter is the most common type of litter by count worldwide.

“We calculate that two-thirds of every cigarette ends up as litter,” Peruga said.

The litter is laced with chemicals including arsenic and heavy metals, which can end up in the water supply. Cigarette butts are not biodegradable, and tossing one on the ground is still considered a socially acceptable form of littering in many countries.

The WHO estimates that between 340 million and 680 million kilograms of tobacco waste are thrown away every year, and cigarette butts account for 30% to 40% of all items collected in coastal and urban clean-ups.

“In addition to that, there are 2 million tons of paper, foil, ink and glue used for the packaging,” Peruga said.

A way forward?

Even though smoking is declining globally, it is increasing in some regions, such as the eastern Mediterranean and Africa. China is a world leader both in production (44%) and consumption, with 10 times more cigarettes smoked than in any other nation.

Every stage of the production of a cigarette has negative effects on the environment and the people who are involved in manufacturing tobacco products, even before the health of smokers and non-smokers is affected.

Although governments worldwide already collect $270 billion in tobacco taxes a year, the WHO suggests that increasing tax and prices is an effective way of reducing consumption and help development priorities in each country, adding that by collecting 80 cents more per pack, the global tax revenue could be doubled.

“Tobacco threatens us all,” WHO Director-General Margaret Chan said in a note. “It exacerbates poverty, reduces economic productivity, contributes to poor household food choices, and pollutes indoor air.”

May, 2017|Oral Cancer News|

More patients presenting with HPV-associated oral cancers in Lubbock, TX

Source: lubbockonline.com
Author: Ellysa Harris

Detecting oral cancers in patients in their 50s and 60s has never been uncommon. But local dentists and doctors say finding it in younger patient populations has become a new norm.

Oral cancers driven by Human Papillomavirus are now the fastest growing oral and oropharyngeal cancers, according to the Oral Cancer Foundation website. And local health officials say they’ve seen a few more cases than usual.

Dr. Joehassin Cordero, FACS, professor, chairman and program director ofTexas Tech’s Health Sciences Center Department of Otolaryngology-Head & Neck Surgery, said less people are smoking and that has contributed to the decrease in the number of cases of oral cancers in the past two decades.

“In that same period, we have seen an increase in the HPV oropharyngeal cancer,” he said. “And oropharyngeal cancer — what it means it’s affecting the base of your tongue and tonsils.”

Dr. Brian Herring, a Lubbock dentist, chalks the increase up to increased awareness.

“I’m assuming probably for years and years and years it has affected the mouth but we didn’t know that,” he said. “As we get better at cellular diagnostics and molecular diagnostics, things like that, we’re finding that there is a large portion of cancers that do have an HPV component.”

What’s more alarming, said Dr. Ryan Higley, oral surgeon with West Texas Oral Facial Surgery, is it’s being diagnosed in younger people.

Higley said oral cancers are generally diagnosed between the ages of 55 and 65, mostly in women.

“With HPV-associated cancers, we see those four to 10 years before that,” he said. “It’s a younger patient population.”

Cordero said the oral cancers are often caused by exposure to HPV from years before.It starts with exposure to the HPV infection. One in four people in the United States are currently infected, according to the Centers for Disease Control and Prevention website.

“It’s truly considered a sexually transmitted disease,” Cordero said. “It has to do with not so much kissing, but oral sex.”

It’s passed on when somebody with an active lesion engages in sexual activities with another person, he said.

Nine out of 10 infections will disappear on their own, according to the CDC, but infections that linger for longer than about two years can lead to cancer.

“That doesn’t mean they’ll have cancer next week,” Cordero said.

Researchers are still trying to figure out why and how long after HPV exposure it takes for cancer to develop, he said.

“We don’t know the true mechanism because most of these people were not exposed a year ago,” he said. “They were not exposed six months ago. They were exposed a long time before that.”

When it does present, he said, there generally aren’t any noticeable symptoms.Because of that, it’s often diagnosed in later stages, Herring said.

“What we’re finding is because the demographic is changing, they’re not getting diagnosed as early because they’re not expecting to have this problem,” he said.

Screenings for oral HPV exist.

“The gold standard examination is your typical dental exam,” Herring said. If your dentist detects something unusual that might need further examination, he or she will make a referral to an oral surgeon.

Higley said oral HPV cancer presents as a lesion that looks like a kanker that won’t heal.

“However, cancerous lesions can have multiple presentations so that’s not exclusive,” he said. “So oftentimes, we’ll have a patient present with a hard nodule underneath their jaw line or in their neck. Sometimes they’ll just have red or white lesions within the mouth, hoarseness in their voice or difficulty swallowing. All those are things that need to be checked.”

The cancer seems to be more treatable, he said, but it’s hard to pinpoint why.

“We really don’t know if they’re more responsive to treatment because we’re treating a little bit younger patient population who is overall more healthy or if it’s inherant in the tumor itself,” Higley said.

Cordero said he hopes the HPV vaccine, which is recommended for both girls and boys 11 or 12 years old and people up to 26 years old, provides a measure of protection against the infection.

“We’re hoping in the next 10 to 20 years that head and neck cancer caused by HPV will be completely gone,” he said.