E-cigarettes contain flavouring chemical linked to deadly ‘popcorn lung’

Source: The Telegraph Author: Sarah Knapton, Science Editor Public health experts are sharply divided about e‑cigarettes Photo: ALAMY   Three quarters of e-cigarettes tested by Harvard scientists contained the chemical diacetyl which is known to cause lung damage. Vapers could be at risk of developing the deadly disease ‘popcorn lung’ after scientists found a toxic chemical in 75 per cent of flavoured electronic cigarettes. Diacetyl, a chemical which is used as a butter substitute in flavours like Cotton Candy and Cupcake, has been linked to respiratory disease bronchiolitis obliterans Although it is thought to be safe when eaten, the United States National Institute for Occupational Safety and Health has said it could be hazardous when inhaled over a long period. It follows incidences in several factories which manufacture microwave popcorn where workers developed bronchiolitis obliterans. Diacetyl is known to cause inflammation, scarring and constriction of the tiny airways in the lung known as bronchioles, reducing air flow. There is currently no known cure except for a lung transplantation. Researchers said 'urgent action' was needed to 'evaluate this potentially widespread exposure via flavoured e-cigarettes.' "Recognition of the hazards associated with inhaling flavouring chemicals started with 'Popcorn Lung' over a decade ago,” said lead author Joseph Allen, assistant professor of exposure assessment science at Harvard T.H. Chan School of Public Health. “However, diacetyl and other related flavouring chemicals are used in many other flavours beyond butter-flavoured popcorn, including fruit flavours, alcohol flavours, and, we learned in our study, candy flavoured e-cigarettes." E-cigarettes use [...]

2015-12-09T10:52:17-07:00December, 2015|Oral Cancer News|

Wisconsin scientists grow functional vocal cord tissue in the lab

Source: www.med.wisc.edu Author: press release Madison, Wisconsin - University of Wisconsin scientists have succeeded in growing functional vocal-cord tissue in the laboratory, a major step toward restoring a voice to people who have lost their vocal cords to cancer surgery or other injuries. Dr. Nathan Welham, a speech-language pathologist, and colleagues from several disciplines, were able to bioengineer vocal-cord tissue able to transmit sound, they reported in a study published today in the journal Science Translational Medicine. About 20 million Americans suffer from voice impairments, and many have damage to the vocal-cord mucosae, the specialized tissues that vibrate as air moves over them, giving rise to voice. While injections of collagen and other materials can help some in the short term, Welham says not much can be done for people who have had larger areas of their vocal cords damaged or removed. “Voice is a pretty amazing thing, yet we don’t give it much thought until something goes wrong,” says Welham, an associate professor of surgery in the UW School of Medicine and Public Health. “Our vocal cords are made up of special tissue that has to be flexible enough to vibrate, yet strong enough to bang together hundreds of times per second. It’s an exquisite system and a hard thing to replicate.” Welham and colleagues began with vocal-cord tissue from a cadaver and four patients who had their larynxes removed but did not have cancer. They isolated, purified and grew the cells from the mucosa, then applied them to [...]

2015-11-21T09:45:52-07:00November, 2015|Oral Cancer News|

Head, Neck Cancer Patients May Be at Higher Risk for Suicide: Study

Source: www.health.usnews.comAuthor: Robert Preidt THURSDAY, Nov. 12, 2015 (HealthDay News) -- Head and neck cancer patients may be at raised risk for suicide, new research suggests. However, the overall risk is still small, the findings showed. The study included over 350,000 patients in the United States diagnosed with head and neck cancer between 1973 and 2011. Of those patients, 857 died by suicide. The investigators found that the suicide rate among head and neck cancer patients was three times higher than in the general population. And suicide rates were higher among patients treated with radiation alone compared to surgery alone. Suicide rates were highest among those with cancers of the lower part of the throat, including the larynx ("voice box") and hypopharynx, at five times and 12 times higher, respectively, than in the general population. "This may be linked to these anatomic sites' intimate relationship with the ability to speak and/or swallow. Loss of these functions can dramatically lower patients' quality of life," Dr. Richard Chan Woo Park, of Rutgers New Jersey Medical School, and colleagues wrote. "It is possible that the increased rates of tracheostomy [breathing tube] dependence and dysphagia [difficulty swallowing] and/or gastrostomy [feeding] tube dependence in these patients are . . . factors in the increased rate of suicide observed," the authors added. The study was published online Nov. 12 in the journal JAMA Otolaryngology--Head & Neck Surgery. "While there is a considerable body of research that examines survival outcomes for patients with head and neck cancer, additional [...]

2015-11-13T15:34:55-07:00November, 2015|Oral Cancer News|

FDA Clears First Tobacco Product for Marketing

For the first time since it was given the power to regulate tobacco, the US Food and Drug Administration (FDA) has authorized marketing of a new product. The agency said that eight new smokeless snus products, to be sold in the United States under the "General" brand name by Stockholm-based Swedish Match AB, are now authorized under the premarket tobacco application pathway, which was established by the 2009 Family Smoking Prevention and Tobacco Control Act. Snus cannot be marketed as "FDA-approved," however. "Today's action demonstrates that the premarket tobacco application process is a viable pathway under which products can be marketed, as long as the public health can be protected," said Mitch Zeller, director of the FDA's Center for Tobacco Products, in a statement. This is the first time any tobacco maker has completed the rigorous premarket tobacco application review process at the agency; others have had products approved by proving they are substantially equivalent to what is already on the market. The agency said that Swedish Match provided evidence that "these products would likely provide less toxic options if current adult smokeless tobacco users used them exclusively." The agency also agreed with the company that snus' availability would not result in substantial new use, delay quit attempts, or attract ex-smokers. Swedish Match had been seeking separately to remove warnings that snus is harmful, but the agency has not yet ruled on that request. In that separate application, Swedish Match was seeking to have the 10 types of snus it [...]

2015-11-13T15:25:42-07:00November, 2015|Oral Cancer News|

A cancer on the rise, and the vaccine too late for Gen X

Source: www.cnn.comAuthor: Martha Shade  (CNN)The vaccine given to prevent cervical cancer in women could end up saving men's lives, too. Evidence is mounting that the HPV vaccine is also effective in preventing other HPV-related cancers, including those of the head and neck. Although most people who get HPV do not develop cancer, rates of HPV-related head and neck cancers are dramatically rising for men aged 40 to 50, according to Dr. Maura L. Gillison, the Jeg Coughlin Chair of Cancer Research at the Ohio State University Comprehensive Cancer Center. When Gillison recently gave a presentation showing the increasing rate of HPV-related head and neck cancer among men, her audience was shocked. "I've never shown a slide where the audience gasps," she said. Related: Yes, oral sex can lead to cancer "The risk of getting this cancer is strongly related to when you were born. If you are currently a 40- to 45-year-old man, your risk of getting this cancer is dramatically higher than a 40- to 45-year-old man three or four decades ago," Gillison said. Today's 40- to 50-year-old men have had more sexual partners and have engaged in more oral sex than previous generations, according to experts, significantly raising their risk of an HPV-related head and neck cancer. Actor Michael Douglas made headlines in 2013 when he announced he was battling an HPV-related cancer and that he got it from performing oral sex. Douglas was 68 when he was diagnosed, but many of the men being diagnosed with these [...]

2015-11-05T11:21:19-07:00November, 2015|OCF In The News, Oral Cancer News|

Smoking with a hookah is linked to serious oral problems

Source: www.youthhealthmag.com Author: staff Many people who use a hookah to smoke tobacco think it is a safer way to smoke and that they are reducing their risk. Not so. A new study suggests that using a hookah is associated with serious conditions of the mouth, head, and neck. Researchers from Rutgers University in New Jersey analyzed 20 published studies that focused on the use of a hookah or water pipe. Ten of the articles pertained to the problems in the mouth, seven to head and neck cancer, and three to problems with the larynx and middle ear. They found that using a hookah is associated with greater amounts of inflammation, gum diseases, a dental condition called dry socket, premalignant lesions, oral cancer, and cancer of the head, neck, and esophagus. It was also associated with a greater incidence of oral infections by the organism Candida, with swelling of the vocal cords, and a lower vocal pitch. The number of people who use a hookah or water pipe-also called an argilah or hubbly-bubbly-has risen worldwide in the past few years. To use these devices, people place tobacco into a bowl on the top of the pipe and light it. The tobacco smoke is passed through a container of water before it is inhaled. Often, the tobacco used in a hookah is heavily flavored with sweeteners such as molasses or honey and other favors. According to the World Health Organization, a typical session of smoking using a hookah lasts up to [...]

2015-11-27T19:55:07-07:00November, 2015|Oral Cancer News|

Follow-up by advance practice nurses improves care for patients with head, neck cancer

Source: www.healio.com Author: Anthony SanFilippo The launch of an advance practice nurse outpatient follow-up clinic improved symptom management for high-risk patients with head and neck cancer following radiation therapy, according to findings from a study conducted at Cleveland Clinic. This initiative led to fewer ED visits and hospital admissions, results showed. “These results are significant as they suggest more intensive follow up in high-risk head and neck patients can improve patient outcomes,” Bridgett Harr, CNP, of the department of radiation oncology at Cleveland Clinic, told HemOnc Today. “This intensive symptom management is an important role [advance practice nurses (APNs)] can fill in this and other patient groups by providing consistent, proactive management of symptoms during recovery from treatment. Our study suggests this will lead to improved patient experience, in addition to a reduction in cost to both the patient and health care system as a whole.” Patients with head and neck cancer often undergo radiotherapy or chemoradiotherapy, and many experience debilitating side effects that require ED management or admission to the hospital. In 2014, an APN-led clinic was launched to focus on the acute rehabilitation of patients with head and neck cancer undergoing these therapies. Harr and colleagues sought to evaluate the outcomes and incidence of adverse events among patients treated at an APN clinic compared with historical outcomes. The analysis included data from 25 high-risk patients with head and neck cancer who received care post-treatment at an APN clinic and 24 patients who received standard follow-up care identified using [...]

2015-11-03T10:14:55-07:00November, 2015|Oral Cancer News|

New research opens door to understanding human tonsil cancer



Source: medicalxpress.com Author: staff Researchers at Simon Fraser University and the BC Cancer Agency have developed a groundbreaking method to identify and separate stem cells that reside in the tonsils. Their research, which sheds new light on the fight against oral cancer, is published today in the journal Stem Cell Reports. While stem cells in many other body tissues have been well studied, little is known about these stem cells, says researcher Catherine Kang, a PhD student in the Department of Biomedical Physiology and Kinesiology and lead author of the paper. Ninety per cent of human tonsil cancers show evidence of HPV (human papillomavirus) infection. But little is known about its role in causing these cancers. Researchers suspect it is a key player, as HPV is the major risk factor for cervical cancer. Kang, who is working with BPK professor Miriam Rosin, director of the BC Oral Cancer Prevention Program, and UBC professor Connie Eaves of the Terry Fox Laboratory, was interested in finding out why the tonsil is particularly susceptible to HPV and wondered if it might have something to do with the stem cells of the tissue that coats the tonsils. When she purified these cells and made them incorporate a cancer-causing gene normally transmitted by HPV, the cells grew abnormally in a special tissue culture system, and created what one might imagine what the beginning stages of human tonsil cancer would look like. "This is a very exciting finding, as it is the first stage of human [...]

2015-11-03T10:06:31-07:00November, 2015|Oral Cancer News|

Why groundbreaking new cancer drugs still don’t work for most patients

Source: www.news.doximity.comAuthor: Brady Dennis Immunotherapy, which aims to harness the body's immune system to fight off certain cancers, has received plenty of attention, praise and investment in recent years. Breakthrough treatments for melanoma and other cancers have shown startling results, giving some patients months and often years of life they almost certainly would not otherwise have had. Yet, for all their promise, immune therapies have not produced such dramatic results for the majority of patients. The same drug that causes metastatic melanoma to vanish in one patient might have no effect on another. At best, only one or two patients out of five will respond to immunotherapy treatments -- remarkable numbers compared to past standards, but still far lower than anyone would like. New research published Monday in the journal Nature explores the molecular mechanisms that prevent immunotherapy drugs from working in some patients, and researchers hope the findings will help make the treatments more effective over time. In short, the researchers studied why certain tumors were able to evade immune therapies designed to unleash the body's defenses to fight cancer. They noted that tumors with a high concentration of "T cells," a type of white blood cell essential to the human immune system, were more responsive to the treatments. Tumors with a low number of T cells inside what researchers call the "cancer microenvironment" were far less responsive to the new drugs. "The tumors are acting to protect themselves," said Weiping Zou, a senior author of the study and a professor of surgery, immunology and biology at the University of Michigan's [...]

2015-10-30T12:28:18-07:00October, 2015|Oral Cancer News|

Researchers Find Hookah Smoking Can Lead to Serious Oral Conditions – Equivalent To Smoking 100 Cigarettes

Source: www.multivu.comAuthor: PR Newswire CHICAGO, Oct. 28, 2015 /PRNewswire/ -- According to the Centers for Disease Control and Prevention, 2.3 million Americans smoke tobacco from pipes, and many of those who smoke waterpipes, or hookahs, believe it's less harmful than cigarettes. However, research published in The Journal of the American Dental Association (JADA) suggests hookah smoking is associated with serious oral conditions including gum diseases and cancer. "We found that waterpipe smoking is associated with serious health problems affecting the head and neck region," said study author Teja Munshi, B.D.S., M.P.H of Rutgers University. "The public needs to know they are putting themselves at risk. They should be made aware of the dangers of smoking hookahs." The authors conducted a literature review that focused on waterpipe smoking and head and neck conditions. They found waterpipe smoking to be associated with gum diseases, dry socket, oral cancer and esophageal cancer among other conditions. According to the World Health Organization, smoking a hookah is the equivalent of smoking 100 cigarettes, based on the duration and number of puffs in a smoking session. "This study sheds light on the common misconception that smoking from a waterpipe is somehow safer than smoking a cigarette," said JADA Editor Michael Glick, D.M.D. "Whether you are smoking a cigarette, an e-cigarette, a cigar, or tobacco from a waterpipe, smoking is dangerous not only to your oral health but to your overall health." The American Cancer Society is hosting The Great American Smokeout on November 19, 2015, an annual event that encourages [...]

2015-10-29T12:32:23-07:00October, 2015|Oral Cancer News|
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