human papilloma virus – Page 6

Robotic surgery vs. radiation, chemo for throat cancer, study to see which is best

By: Sheryl Ubelacker, The Canadian Press, April 17, 2013Source: ottawacitizen.com TORONTO - It was quite a shock for Rod Sinn when he learned the persistent sore throat he'd had for five months, initially diagnosed as tonsillitis, was actually an increasingly common form of throat cancer caused by the human papilloma virus. Equally unpleasant was the news that the standard treatment for oropharyngeal cancer, which typically affects the back of the tongue, tonsils and nearby tissues, is radiation and chemotherapy. Sinn, a physically fit non-smoker who only drinks alcohol occasionally, had seen what the double-barrelled treatment could do. A friend diagnosed with throat cancer a year earlier and given the standard treatment lost his salivary glands and sense of taste. "I thought, wait a minute, there's got to be another option. I really don't like the side-effects of all that radiation," the 52-year-old businessman, who lives in Oakville, Ont., near Toronto, said Tuesday. After searching the Internet, he discovered doctors at Western University in London, Ont., were the only ones in Canada performing robotic-assisted surgery for throat cancer. Sinn had the robotic surgery in spring 2011, plus a follow-up operation to remove some lymph nodes for testing to make sure his cancer hadn't spread. While the surgery left him unable to swallow for several weeks and he lost some taste buds for a time, he is virtually back to normal except for some numbness in his neck where the lymph nodes were removed. "It was fantastic," said Sinn, who counts himself a believer [...]

Charlotte Parker2013-04-18T16:40:32-07:00April, 2013|Oral Cancer News|

Researchers design drug to block incidence of head, neck cancer caused by HPV virus

Source: www.news-medical.net Researchers have discovered a new mechanism by which the human papilloma virus (HPV) causes head and neck cancer, and they have designed a drug to block that mechanism. Though further research is needed, the new agent might offer a safer treatment for these tumors when combined with a tapered dose of standard chemotherapy. HPV-positive head and neck cancer has become three times more common since the 1970s, and it could reach epidemic levels in the future, say researchers at the Ohio State University Comprehensive Cancer Center - Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC-James) who led the study. "We believe these findings will help meet the real need for more effective and safer therapy for a growing number of HPV-positive head and neck cancer patients," says principal investigator Dr. Quintin Pan, associate professor of otolaryngology at the OSUCCC - James. The study was published in the journal Oncogene. The research, which mainly used head and neck cancer cells, shows that a protein produced by the virus blocks a protein made by the host cell. The cell protein, called p300, regulates a gene called p53. This gene both controls cell division and protects the body against cancer by causing cells to die before they become malignant.By blocking the cell protein, HPV forces the host cell to live instead of die and to proliferate and form tumors. The prospective new drug, called CH1iB, prevents the viral protein from binding with the cell protein. This restores [...]

Oral Cancer Foundation News Team - A2013-04-11T09:00:53-07:00April, 2013|Oral Cancer News|

Emergence of HPV 16 and sexually transmiitted oral cancer

Source: communities.washingtontimes.com Author: Dr. Ali by Ali Forghani The human papilloma virus (HPV) is the second leading cause of oral cancer. HPV is certainly not a newcomer to the disease world. It is one of the most common sexually transmitted disease on the planet. As of this writing, over 120 variations of the virus have been discovered, with different strands of HPV affecting different areas of the body. Many people contract HPV daily without realizing they have a virus, as it is very possible to carry a strand while displaying no noticeable symptoms. HPV 16 Virus HPV is a virus that is mainly focused on the outer surface of the body, the skin, as well as the mucus secreting areas. The most noticeable effect from certain strands of the virus is the appearance of warts on the skin, mainly concentrated on the arms, legs and hands. Condylomata acuminatum, also called genital warts, are the strands of this virus found most commonly on individuals and are generally believed to be caused by the HPV strands 6 and 11. These particular strands of HPV are very common and easily treatable. One of the prime reasons HPV is found so commonly in the world is the ease of transmission of the virus. HPV can be spread simply by contact of the skin, with certain strands branching out to be sexually transmitted. These particular strands are the strands that should be of the most concern today due to the discoveries being made [...]

Oral Cancer Foundation News Team - A2013-04-01T08:46:21-07:00April, 2013|Oral Cancer News|

Spike in oral cancers puzzles experts

Source: www.turnto23.com Author: Victoria Colliver/San Francisco Chronicle Christine Schulz has never visited England, but she speaks with the clipped inflection of a vaguely British accent. It's not an affectation but, rather, the mystifying after-effect of an 18-hour surgery she endured in 2009 to remove about half her tongue due to a cancerous growth that had spread to her lymph nodes. Surgeons used skin from her wrist and upper leg to re-create the missing portions of her tongue. Through long term speech therapy, Schulz, 47, of Hollister, Calif., re-learned how to eat and talk with her reconstructed tongue. If she sounds as if she's from a different country, Schulz isn't complaining. "At the moment I woke up from surgery, I realized exactly what a huge deal it was," she said, describing how she had an incision in her throat to allow her to breathe and was prohibited to speak in her earliest days of healing. Oral cancers, which include those of the mouth and tongue, are most common in men over 60 with a long history of smoking or chewing tobacco, often combined with heavy drinking. But in recent years, a spike in the incidence of oral cancers is being attributed to human papilloma virus or HPV. But Schulz's cancer was neither HPV-- nor tobacco-related. That puts her in a camp of fewer than 7 percent of all oral cancers that have no identifiable cause, according to the Oral Cancer Foundation, an advocacy group based in Newport Beach, Calif. "Surprisingly, a [...]

Oral Cancer Foundation News Team - A2013-03-23T10:17:08-07:00March, 2013|Oral Cancer News|

Detecting cancer’s biochemical ‘fingerprint’ for early diagnosis

Source: www.siliconrepublic.com Author: Claire O'Connell Detecting cancer in its early stages could help to make treatment more effective. Claire O’Connell found out from Dr Fiona Lyng about Cervassist, an emerging technology that uses spectroscopy to analyse tissue samples and spot when cells are showing signs of abnormality. So far the technology has been focusing on assessing cervical smear samples, which are routinely collected as part of screening programmes for cervical cancer in many countries. Cervical cancer is the one of the most common female cancers in Europe, and women are encouraged to be screened every few years. Cells are removed from the neck of the womb, and they are examined by eye under a microscope. If there are abnormal or potentially cancerous cells in the sample, the person can be monitored or treated as appropriate. Cervassist, which is being developed at Dublin Institute of Technology (DIT), could offer another view of those cells on the microscope slide. By shining laser light on the samples and collecting some of the scattered radiation, the technology can automatically analyse the biochemical content of the cells, explains Lyng, who is manager of the DIT Centre for Radiation and Environmental Science. "We use Raman spectroscopy to analyse the cervical samples – it's a vibrational spectroscopic technique that gives a biochemical fingerprint of a sample," she says. "If you shine laser light on a sample, light is scattered back and we collect the inelastic scatter, which contains information about the biochemical components in the sample, the [...]

Oral Cancer Foundation News Team - A2013-02-11T22:31:03-07:00February, 2013|Oral Cancer News|

Throat Cancer and HPV – the researcher

6 February, 2013 12:26PM AEDT By Carol Duncan (ABC Local) Source: abc.net.au Assoc Prof Karen Canfell is a researcher with the Lowy Cancer Research Centre at the University of NSW. HPV is her area of expertise. What does she want us to know about HPV and the vaccination program? CAROL DUNCAN: Karen, your area of expertise is human papilloma virus and I understand there's not just one but 100 or more? ASSOC PROF KAREN CANFELL: That's right, there's a large number of types HPV that have been implicated in cancer but it's really two of those types that are responsible for the vast majority of cancers, HPV 16 & 18 and those types are the ones that are included in the vaccine that is now available to us. CAROL DUNCAN: I guess this is the point of this series this week is that we now have another cancer which is, in essence, preventable. ASSOC PROF KAREN CANFELL: Yes, I think what we're seeing with HPV is an incredible success story in cancer prevention. This started with the vaccination of girls and women in Australia. Because HPV has a very important role in cervical cancer and, in fact HPV is responsible for virtually all cervical cancers, the types we just mentioned (types 16 & 18) are responsible for about 70% of those cancers. Five years ago, in 2007, we had the implementation of the National HPV Vaccination Program in girls and women in Australia and that's really had incredible effects [...]

Charlotte Parker2013-02-06T13:02:21-07:00February, 2013|Oral Cancer News|

People lack knowledge about link between oral cancer, sexual health

Source: www.dentistrytoday.com Author: staff People don’t know enough about the link between oral cancer and sexual health, according to various studies. The general awareness about sexually transmitted infections has risen in recent years but most people still don’t know that the human papilloma virus can cause oral cancer. HPV is a common infection that may be spread through unprotected sex. Research has shown that HPV may become a larger reason for people developing oral cancer in the years to come. It could even rival smoking as a risk factor for oral cancer. Oral cancer cases have increased dramatically and one of the reasons is the lack of awareness about sexual activity and its impact on oral health. Recent data suggests that just one in four people could pinpoint HPV as a cause for oral cancer and about half of all people don’t know that HPV can be spread through sexual activity. In the past, oral cancer was an issue for older people who smoked and drank. Now, however, younger people are being afflicted with oral cancer because of the exposure to HPV. If people are more knowledgeable about the value of contraception, then oral cancer numbers may head back down. That’s why awareness and knowledge are some of the keys for limiting diseases like oral cancer.

Oral Cancer Foundation News Team - A2012-12-12T19:41:24-07:00December, 2012|Oral Cancer News|

Robotic surgery vs. radiation therapy: study will find which better for throat cancer

Source: http://www.windsorstar.com/ Author: Beatrice Fantoni, The Windsor Star In the first trial of its kind in the world, doctors in London, Ont., are comparing robotic surgery and radiation therapy to find out which method helps throat-cancer patients retain speech and swallowing functions - two very important functions that can have a serious effect on quality of life for cancer survivors. Dr. Anthony Nichols and Dr. David Palma of the London Health Sciences Centre are working with 68 test subjects who have cancer of the back of the throat (also known as oropharyngeal cancer) and measuring the swallowing functions of each patient one year after treatment. Because the cure rate for oropharyngeal cancer is pretty good, Nichols said, he and Palma want to focus on how to improve patients' post-treatment quality of life. In Canada, the standard way of treating oropharyngeal cancer is with a combination of radiation and chemotherapy. However, Nichols said, there can be some longterm side-effects with this treatment, such as dry mouth, hearing loss, taste changes and compromised swallowing function. "The side-effects are more than what we'd like," said Palma. "We want to improve the quality of life." Surgery using a robot is a newer treatment that could perhaps be more appropriate for some oropharyngeal cancer patients, Nichols said. London is currently the only site in Canada to offer what is known as transoral robotic surgery. The robot sounds promising, Palma said, and so it warrants more study. "We don't really know if the 'surgery first' approach [...]

Oral Cancer Foundation News Team - A2012-08-03T09:54:30-07:00August, 2012|Oral Cancer News|

Study links gum disease, HPV-status of head and neck cancer

Source: www.buffalo.edu/ubreporter Author: Sara R. Saldi Human Papilloma Virus (HPV), once almost exclusively associated with cancer of the cervix, is now linked to head and neck cancer. Furthermore, according to a new UB study just published in the Archives of Otolaryngology—Head & Neck Surgery, a JAMA publication, gum disease is associated with increased odds of tumors being HPV-positive. Primary investigator Mine Tezal, assistant professor of oral biology in the School of Dental Medicine, and a team of scientists from UB evaluated data from 124 patients diagnosed with primary head and neck squamous cell carcinoma (HNSCC) between 1999 and 2007. “The aim of the study was to test the presence of periodontitis, a persistent inflammatory process and HPV-status of HNSCC,” Tezal says. Of the 124 tumor samples Tezal and her team studied, 50 were positive for HPV-16 DNA and that subjects with HPV-positive tumors had a significantly higher severity of periodontitis when compared to subjects with HPV-negative tumors. According to the National Cancer Institute, there has been a steady increase in the prevalence of oropharyngeal cancers in the U.S. since 1973. This is despite the significant decline in tobacco use since 1965, a year after the U.S. Surgeon General issued the landmark Report on Smoking and Health. Tezal notes that this increase has mainly been attributed to oral HPV infection. Understanding the natural history of the oral HPV infection and targeting factors associated not only with its acquisition but also with its persistence, says Tezal, will lead to more effective strategies, [...]

Oral Cancer Foundation News Team - A2012-06-22T21:24:45-07:00June, 2012|Oral Cancer News|

Vaccination rates higher in states requiring them in middle school

Source: LA Times States that require vaccination for pertussis, meningitis and tetanus for admission to middle school have a higher vaccination rate than states that do not, but the rate is not nearly as high as one might expect from such a requirement, researchers reported Monday. States that required only that educational materials be sent home for those vaccines and the human papilloma virus (HPV) vaccine showed no improvement in vaccination rates. Vaccines for tetanus and pertussis are typically given during childhood, but the effects can diminish over time and a booster shot is recommended in early adolescence. The meningitis and HPV vaccines typically are given in adolescence. Concern has been spreading about low vaccination rates because of recent outbreaks of pertussis, commonly called whooping cough, in California and Washington. Some parents refuse to have their children vaccinated because of groundless fears about vaccine side effects -- particularly the now-refuted link to autism -- but others simply find that it is easier to express "philosophical opposition" to the vaccines rather than take their children for the shots. But these unvaccinated children serve as a natural reservoir for the diseases, enhancing their spread, particularly to those who are too old or immune-impaired to receive the vaccines themselves. Thirty-two states required middle school vaccination with either the tetanus/diptheria (Td) vaccine or the tetanus/diptheria/acellular pertussis (TdaP) vaccine when the survey was performed in 2008-09. Fourteen of those specifically required the TdaP vaccine. None required that educational materials about those vaccines be sent home. [...]

Charlotte Parker2012-05-08T16:49:50-07:00May, 2012|Oral Cancer News|