Study Identifies Potential Cause of Hearing Loss from Cisplatin

Author: NCI Staff Date: January 26, 2018 Source: National Cancer Institute (https://www.cancer.gov/news-events) Results from a new study may explain why many patients treated with the chemotherapy drug cisplatin develop lasting hearing loss. Researchers found that, in both mice and humans, cisplatin can be found in the cochlea—the part of the inner ear that enables hearing—months and even years after treatment. By contrast, the drug is eliminated from most organs in the body within days to weeks after being administered. The study, led by researchers from the National Institute on Deafness and other Communication Disorders (NIDCD), part of the National Institutes of Health, was published November 21 in Nature Communications. Cisplatin, a platinum-based chemotherapy drug, is commonly used for the treatment of many cancers, including bladder, ovarian, and testicular cancers. But cisplatin and other similar platinum-containing drugs can damage the cochlea, leaving 40%–80% of adults, and at least 50% of children, with significant permanent hearing loss, a condition that can greatly affect quality of life. “This study starts to explain why patients who receive the drug sustain hearing loss,” said Percy Ivy, M.D., associate chief of NCI’s Investigational Drug Branch, who was not involved in the study. “This is very important, because as we come to understand how cisplatin-related hearing loss occurs, over time we may figure out a way to block it, or at least diminish its effects.” A New Approach to Researching Cisplatin-Induced Hearing Loss The new study differs from previous research because it is a comprehensive look at the pharmacokinetics, or concentration, of the [...]

2018-02-06T14:57:52-07:00January, 2018|Oral Cancer News|

New Model Proposed for More Accurate Prediction of Treatment Outcomes for HPV Related Throat Cancer Patients

Source: news-medical.netAuthor: Researchers at Princess Margaret Cancer Centre, University Health Network Researchers at the Princess Margaret Cancer Centre are proposing a new model to enable doctors to predict outcomes more accurately for patients with throat cancers specifically caused by Human Papillomavirus (HPV). The findings are published online today in the Journal of Clinical Oncology. Study investigators, Dr. Brian O'Sullivan, Lead, Head and Neck Cancer Site Group and Shao-Hui Huang, Research and Clinical Radiation Therapist at Princess Margaret Cancer Centre, have determined that a new model for classifying the most frequently seen throat cancers in our geographic location is needed. This classification incorporates individual patient factors including age and their smoking status with the traditional classification of the extent of disease, to offer a more personalized approach to predict outcomes and guide treatment. "Our study shows that the current model derived for smoking and alcohol related cancers is not suited for throat cancer caused by HPV, a burgeoning throat cancer population in the Western World, including Canada," says Huang. "This is the future of tumour staging. We need to consider the patient as a whole. Both individual factors, how extensive the disease is in the patient, and tumour biology should play a role in determining the best course of treatment." The purpose of a tumour staging system is to classify the disease into early, intermediate or advanced stage cancer. This classification helps determine treatment plans and can suggest what is likely to be the outcome. In recent years, it's been discovered that [...]

2015-02-11T11:01:45-07:00February, 2015|Oral Cancer News|

MD Anderson Research Shows More Targeted Form of Radiation Improves Survival in Patients With Head, Neck Cancers

Source: Bio News - TexasPublished: January 15, 2014By: Ayesha Khan   Recent research conducted at the University of Texas MD Anderson Cancer Center suggests clinical outcomes in patients receiving intensity-modulated radiation therapy (IMRT) for head and neck cancers is more effective when compared to patients who receive traditional radiation therapy, thanks to the advanced technology of IMRT. IMRT precisely targets malignant cells without affecting the normal surrounding tissue, thereby reducing the risk of adverse effects and improving therapy associated effects. The results of this study were published online in the peer-reviewed journal Cancer. What is IMRT? Intensity-modulated radiation therapy, or IMRT, limits the exposure of radiation to normal tissue by employing multiple beams of radiotherapy that helps in setting the dosage by radiologists in accordance with the site and size of tumor. Assistant professor at MD Anderson’s Radiation Oncology, Beth Beadle explained: “Previous studies indicated that patients treated with IMRT did better when it came to treatment-related side effects, however these studies were not designed to examine survival. The survival data was not well-known because IMRT is intended to spare normal tissues but still deliver radiation to the tumor so previous models assumed it was equivalent survival at best.” The technique was approved in 1999, and since then has become increasingly popular mainly because of the high benefits and low toxicity profile. The risk of several common but problematic complications (such as tissue fibrosis, dry mouth, dental issues and musculoskeletal flexibility) can be significantly reduced when compared to conventional radiotherapy. Details [...]

2014-01-16T18:00:40-07:00January, 2014|Oral Cancer News|

Prominent M.D. Anderson cancer doctor dies at 63

Source: Houston ChroniclePublished: June 22,2013By: Todd Ackerman  OCF sadly reports the death of one of its founding board members and good friend, Dr. Kian Ang. Dr. Ang was Brian Hill's personal radiation oncologist when he was treated at MDACC for his oral cancer. The two developed a strong friendship over the years. Brian often refers to Dr. Ang as one of his most valued mentors in the treatment of oral cancers, and in critical thinking when reviewing scientific papers. He will be greatly missed as a strong contributor and advisor to OCF, having helped set its direction for many years.   Dr. Kian Ang, a prominent cancer doctor who helped popularize the M.D. Anderson Cancer Center tradition of ringing a bell at the end of radiation treatment, died Wednesday. He was 63. Ang, who pioneered practice-changing treatment for head and neck cancers, succumbed to cancer at M.D. Anderson, surrounded by family. He was diagnosed recently with the disease. "Dr. Ang was the true triple threat - outstanding clinician, accomplished investigator and educator par excellence," said Dr. Randal Weber, chairman of head and neck surgery at M.D. Anderson. "He was the guy who could do it all, what many of us aspire to be but fall short of." Colleagues at the University of Texas cancer center said Ang's greatest achievements included pioneering work treating head and neck cancers with a combination of radiation and chemotherapy, particularly targeted therapies; and determining that cancers of the throat are more sensitive to treatment if caused by the [...]

2013-09-27T11:06:22-07:00September, 2013|Oral Cancer News|

Cigarette, Cigar, and Pipe Smoking and the Risk of Head and Neck Cancers: Pooled Analysis in the International Head and Neck Cancer Epidemiology Consortium

Source: Oxford JournalsReceived July 26, 2012.Accepted February 8, 2013 Abstract Cigar and pipe smoking are considered risk factors for head and neck cancers, but the magnitude of effect estimates for these products has been imprecisely estimated. By using pooled data from the International Head and Neck Cancer Epidemiology (INHANCE) Consortium (comprising 13,935 cases and 18,691 controls in 19 studies from 1981 to 2007), we applied hierarchical logistic regression to more precisely estimate odds ratios and 95% confidence intervals for cigarette, cigar, and pipe smoking separately, compared with reference groups of those who had never smoked each single product. Odds ratios for cigar and pipe smoking were stratified by ever cigarette smoking. We also considered effect estimates of smoking a single product exclusively versus never having smoked any product (reference group). Among never cigarette smokers, the odds ratio for ever cigar smoking was 2.54 (95% confidence interval (CI): 1.93, 3.34), and the odds ratio for ever pipe smoking was 2.08 (95% CI: 1.55, 2.81). These odds ratios increased with increasing frequency and duration of smoking (Ptrend ≤ 0.0001). Odds ratios for cigar and pipe smoking were not elevated among ever cigarette smokers. Head and neck cancer risk was elevated for those who reported exclusive cigar smoking (odds ratio = 3.49, 95% CI: 2.58, 4.73) or exclusive pipe smoking (odds ratio = 3.71, 95% CI: 2.59, 5.33). These results suggest that cigar and pipe smoking are independently associated with increased risk of head and neck cancers. *This news story was resourced by the [...]

2013-07-19T07:23:54-07:00July, 2013|Oral Cancer News|

It’s True. You Can Get Throat Cancer From Oral Sex

By: Alexandra SifferlinJune 03, 2013 Source: TIME  On Sunday, in an interview with the Guardian, actor Michael Douglas revealed that his throat cancer was not caused by tobacco and alcohol, but by HPV, which was transmitted through oral sex. He has since called the statement a misunderstanding, but it’s still true: you can get throat cancer from HPV. In an eye-poppingly candid interview with the Guardian’s Xan Brooks, Douglas, who is married to actress Catherine Zeta-Jones, allegedly told the reporter his cancer was caused by the STD: The throat cancer, I assume, was first seeded during those wild middle years, when he drank like a fish and smoked like the devil. Looking back, knowing what he knows now, does he feel he overloaded his system? “No,” he says. “No. Because, without wanting to get too specific, this particular cancer is caused by HPV [human papillomavirus], which actually comes about from cunnilingus.” From what? For a moment I think that I may have misheard. “From cunnilingus. I mean, I did worry if the stress caused by my son’s incarceration didn’t help trigger it. But yeah, it’s a sexually transmitted disease that causes cancer.” He shrugs. “And if you have it, cunnilingus is also the best cure for it.” Right, I say. OK. So what he is suggesting is that it all evens out? “That’s right,” says Douglas. “It giveth and it taketh.” Human papillomavirus (HPV) is a sexually transmitted disease that can cause genital warts or present itself without symptoms. If left untreated, it can also [...]

2013-06-04T11:13:31-07:00June, 2013|Oral Cancer News|

HPV vaccination—reaping the rewards of the appliance of science

Source: bmj.comDate: April 18, 2013By: Simon Barton, clinical director  National programmes could virtually eliminate certain diseases and substantially reduce costs. The optimism generated by scientific breakthroughs often turns to disappointment when applied to the real world of clinical care. It is therefore worth celebrating the extraordinary success of Australia’s national human papillomavirus (HPV) vaccination programme, which was implemented five years ago, as reported in the linked paper by Ali and colleagues (doi:10.1136/bmj.f2032).1 This analysis of data on 85 770 new patients from six Australian sexual health clinics shows a remarkable reduction in the proportion of women under 21 years of age presenting with genital warts—from 11.5% in 2007 to 0.85% in 2011 (P<0.001). Only 13 cases of genital warts were diagnosed in women under the age of 21 across all six health clinics in 2011. Such a reduction in this distressing disease caused by a sexually transmitted virus is a major public health achievement. Furthermore, the near eradication of genital warts in young Australian women will probably have a major impact on the costs of sexual healthcare. In 2007, Australia became one of the first countries to implement a nationally funded HPV vaccination programme for girls and young women with the quadrivalent vaccine. It started with the vaccination of girls aged 12 years in schools and a catch-up programme for girls and women aged 13-26 years. Quadrivalent vaccine protects against HPV types 6 and 11, which cause more than 90% of genital warts, in addition to HPV types 16 and 18, which [...]

2013-04-22T12:13:42-07:00April, 2013|Oral Cancer News|

Where Do the Millions of Cancer Research Dollars Go Every Year?

Posted: Thursday, Feb. 7, 2013, at 5:18 PM ET By: Quora Contributor Source: Slate.com   This question originally appeared on Quora. Answer by David Chan, MD, Oncologist : I'll be the first to admit that despite all the billions put into cancer research, the end results of preventing cancer and treating advanced cancer have been disappointing. Unlike reducing deaths from heart attacks and stroke, progress in reducing deaths from cancer has been disappointingly slow. Sure, we've had our breakthrough drugs like Gleevec, the targeted drug for chronic myelogenous leukemia, and Herceptin for a certain type of breast cancer. But for a lot of other cancers, the treatments aren't giving us bang for the buck. Spending $100,000 to $200,000 a year to extend life for an additional three to six months may be very important to those individuals with cancer, but are a very poor return on investment for society. It's not sustainable, and that's why a lot of national health care programs won't pay for drugs like Avastin, Sutent, Yervoy, and Provenge. Dr. Margaret Cuomo (sister of New York Gov. Andrew Cuomo) recently wrote about her perspective about this. On the amount spent on cancer research: "More than 40 years after the war on cancer was declared, we have spent billions fighting the good fight. The National Cancer Institute has spent some $90 billion on research and treatment during that time. Some 260 nonprofit organizations in the United States have dedicated themselves to cancer — more than the number established [...]

2013-02-08T13:35:57-07:00February, 2013|Oral Cancer News|

HPV Vaccine Recommendation for Boys Viewed as Necessary

Source: OncLive.com  As the incidence of head and neck cancers linked to the human papillomavirus (HPV) continues to rise, a federal advisory panel has recommended that all 11- and 12-year-old boys be vaccinated against the virus, igniting further controversy in an area where acceptance of a public health policy has been slow. The recommendation from the Advisory Committee on Immunization Practices of the Centers for Disease Control and Prevention (CDC) would expand the use of the vaccine beyond the original target population of 11- and 12-year-old girls for whom it is recommended as protection against cervical cancer. Ezra E. W. Cohen, MD, firmly supports the latest recommendation. “It’s the right move by the CDC,” he said in an interview. “I think it’s a long time coming.” Cohen said that the fact that the original recommendations targeted cervical cancer created a cultural perception that the vaccine was only intended for girls. Yet the HPV virus affects men as well. According to the CDC, HPV is associated with about 18,000 cancers in women and 7000 cancers in men each year. Overall, the incidence of HPV-positive oropharynx cancers increased by 225% between 1988 and 2004, according to National Cancer Institute research. There were an estimated 6700 cases of HPV-positive oropharynx cancers in 2010, up from 4000 to 4500 in 2004. Cohen said he believes such numbers are going to continue to rise. Even by taking proactive steps in 2011, the vaccine is only intended for children and young adults. HPV that is already [...]

2012-04-18T10:05:13-07:00April, 2012|Oral Cancer News|

Maura L. Gillison, M.D., Ph.D., Receives AACR’s Richard and Hinda Rosenthal Memorial Award

Source: AACR News CHICAGO — The American Association for Cancer Research will award Maura L. Gillison, M.D., Ph.D., with the 36th Annual AACR Richard and Hinda Rosenthal Memorial Award during the AACR Annual Meeting 2012, held here March 31 – April 4. Gillison is receiving this award in recognition of her significant contributions to the understanding of the role of human papillomavirus (HPV) in head and neck cancers. Gillison’s award lecture, “Clinical implications of HPV in head and neck cancers,” will take place at 10 a.m. CT on Wednesday, April 4 in room S100 of the McCormick Place Convention Center. “It is an honor to be the recipient of this award,” said Gillison. “Our team strives to generate data that will improve the lives of individuals affected by head and neck cancers, and this is a wonderful validation that we are on the right track.” This award is designed to provide incentive to young investigators early in their careers. It was established in 1977 by the AACR and the Rosenthal Family Foundation to recognize research that has made, or promises to make, a notable contribution to improved clinical care in the field of cancer. Gillison is a professor of medicine, epidemiology and otolaryngology and the Jeg Coughlin Chair of Cancer Research at Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute in Columbus, Ohio. She is also adjunct faculty at The Johns Hopkins University School of Medicine, in Baltimore, Md. Her [...]

2012-03-23T09:31:04-07:00March, 2012|Oral Cancer News|
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