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 [...]

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

One Less Cancer to Worry About (If Only)

Posted: 02/07/2013 By: Joaquin M. Espinosa Source: Huffington Post   Thankfully, there is one cancer that I no longer have to worry about. I just need to figure out when exactly my seven-year-old twin daughters will have sex for the first time. ... In 2013, around 12,000 American women will be diagnosed with invasive cervical cancer and more than 4,000 will die from it. Globally, cervical cancer is the third most common cancer in women worldwide, killing >275,000 every year. But these numbers will go down, must go down, because cervical cancer is now a fully preventable disease. Or isn't it? For us cancer researchers, good news is often not good enough and too spread apart. In this long war, we became weary of unfounded celebrations. When asked when exactly our discoveries will make a difference in the clinic, we balk and hesitate, as we have been scarred by the many times that our discoveries did not translate into a cure. Yet this time is different, this victory is unequivocal, scientific research has led to the development of vaccines that can make cervical cancer history. Now all there is left to do is to get people vaccinated. Startlingly, this seemingly simple objective is proving to be a monumental task. Cervical cancer originates in the lower portion of the uterus, and if not detected and treated early it will eventually metastasize and kill. Virtually all cervical cancers are caused by the Human Papilloma Virus (HPV), which is present in about half [...]

2013-02-08T13:46:55-07:00February, 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|

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 [...]

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

Attitudes Toward HPV Vaccination For Boys

Source: Medical News Today Date: 01 Feb 2013   A new Boston University School of Medicine (BUSM) study has found that low-income and minority parents/guardians were receptive toward vaccinating boys against Human Papilloma Virus (HPV). However, racial/ethnic differences emerged in attitudes regarding school-entry mandates. The findings appear online in the journal Clinical Pediatrics. Although low-income and minority men have higher rates of oral HPV infection and are more likely to suffer from HPV-related diseases including penile, anal and oral cancers, few studies have examined parental attitudes after the HPV vaccine was approved for males in 2009. This study aimed to provide an in-depth understanding of how low-income and minority parents view HPV vaccination for boys using open-ended interview questions. The analysis was based on the Health Belief Model which measures perceived severity, susceptibility, benefits and barriers. Researchers led by corresponding author, Rebecca Perkins, MD, MSc, assistant professor of obstetrics and gynecology at BUSM, interviewed 120 parents and legal guardians of boys age 11 to 17 who accompanied them for physician visits between December 2011-2012. All subjects were read a short educational paragraph explaining HPV and HPV vaccination prior to answering questions. Perceiving the severe consequences of being exposed to HPV, most parents/guardians saw more benefits than barriers to vaccinating boys against HPV. Researchers found the most prominent barrier to vaccination was lack of information about the long-term efficacy and safety of the vaccine, specifically for males. "This study indicates that most parents would accept HPV vaccination for their sons just [...]

2013-02-04T11:56:10-07:00February, 2013|Oral Cancer News|

U.S. death rate from cancer is dropping

Source: www.webpronews.com Author: Sean Patterson Though cancer hasn’t been completely cured, it’s clear that treatments for the disease have improved over the past two decades. A yearly report from the American Cancer Society has shown that the death rate from cancer in the U.S. is declining among all Americans and for the most common types of cancer. The report, published recently in the Journal of the National Cancer Institute, shows that the death rate from all cancers combined has been falling since the early 1990. From 2000 to 2009, combined cancer death rates have fallen an average of 1.8% among men and 1.4% among women. Black men and black women saw the largest declines in cancer deaths from 2000 to 2009, though their cancer death rates from 2005 to 2009 were still highest when compared to other racial groups. Though death rates for cancers such as lung cancer , breast cancer, and colon cancer are declining, the rate of diagnoses for some cancers is increasing. The rate of new cases of pancreas, kidney, thyroid, liver, melanoma, and myeloma cancers have all increased in men from 2000 to 2009. For women, rates of new cases of thyroid, melanoma, kidney, pancreas, liver, leukemia, and uterus cancers increased during the same period. The report points out that excess weight and lack of physical activity are risk factors for many of these cancers. “The continuing drop in cancer mortality over the past two decades is reason to cheer,” said John Seffrin, CEO of the [...]

Team approach improves oral cancer outcomes

Source: www.drbicuspid.com Author: Donna Domino, Features Editor Providence Cancer Center in Portland, OR, is one of a growing number of facilities that is working to improve care for patients with oral cancer and head and neck cancers through a multidisciplinary program that brings together a spectrum of treatment providers. To illustrate the challenges many oral cancer patients face, R. Bryan Bell, MD, DDS, medical director of the Oral, Head and Neck Cancer Program at Providence, described the extreme effects the illness and its treatment had on one of his patients. The woman had undergone surgery, chemotherapy, and radiation for her oral cavity cancer. "This was a beautiful 32-year-old woman who had lost all her teeth and couldn't chew," Dr. Bell told DrBicuspid.com. "She had aged about 40 years during treatment, and she just looked awful. But she had no means of affording needed dental rehabilitation, which would have cost about $60,000. People need to see what happens when you don't restore these patients." Dr. Bell used the woman's case to convince officials at Providence Health, which oversees the medical center, of the need for a multidisciplinary approach for these patients. The new cancer treatment center, which opened last month, is a unique collaboration between dental and medical oncology specialists. The center provides coordinated care for oral cancer patients who often need expensive and complex dental rehabilitation, regardless of their ability to pay, according to Dr. Bell. His team includes head and neck surgical oncologists, radiation oncologists, medical oncologists, otolaryngologists, neuro-otologists, [...]

Quitting smoking before cancer surgery best, study finds

Source: health.usnews.com Author: staff Cancer patients who smoked up until their surgery were more likely to take up the habit again compared to those who quit earlier, a new study finds. The study from the Moffitt Cancer Center in Tampa, Fla., included lung cancer and head and neck cancer patients who quit smoking before or immediately after surgery. They were followed for a year after the surgery. "Sixty percent of patients who smoked during the week prior to surgery resumed smoking afterward, contrasted with a 13 percent relapse rate for those who had quit smoking prior to surgery," study corresponding author Vani Nath Simmons said in a Moffitt news release. The significantly lower smoking relapse rate for those who quit smoking before surgery shows the need to encourage patients to quit smoking when they're diagnosed with cancer, the researchers said. The investigators also noted that most of the patients who began smoking again did so shortly after surgery, which shows the importance of anti-smoking programs for patients both before and after surgery. The study also found that patients were more likely to resume smoking if they had a high amount of fear about cancer recurrence, had a higher risk for depression, and were less likely to believe in their ability to quit smoking. "Cancer patients need to know that it's never too late to quit," Simmons said. "Of course, it would be best if they quit smoking before getting cancer; but barring that, they should quit as soon as they [...]

Erbitux add-on falls short in esophageal cancer

Source: www.medpagetoday.com Author: Charles Bankhead, Staff Writer, MedPage Today The addition of a targeted agent to definitive chemoradiation failed to improve survival in an unselected population with esophageal cancer, a randomized trial showed. In fact, patients who received cetuximab (Erbitux) with chemoradiation had significantly worse overall survival (OS) reflected in a 50% increase in the hazard versus chemoradiation alone, reported Thomas Crosby, MD, of Velindre Hospital in Cardiff, Wales, and colleagues. Investigators could not find any subgroup of patients who benefited from cetuximab, they said in a presentation at the Gastrointestinal Cancers Symposium. "The addition of cetuximab cannot be recommended to standard definitive chemoradiotherapy in the treatment of unselected patients with esophageal cancer," Crosby said. "The use of high-quality definitive chemoradiotherapy in the treatment of localized, poor-prognosis esophageal cancer was associated with excellent survival compared with previous radiotherapy and surgical series," he added. Randomized trials have shown that definitive (or primary) chemoradiation improves survival in localized esophageal cancer compared with a single treatment modality. In England, definitive chemoradiation has been used primarily for patients with localized disease that is unsuitable for surgery, Crosby said. Add-on therapy with cetuximab has improved outcomes in other cancers, notably head and neck cancer and colorectal cancer. The findings provided a rationale for evaluating the addition of cetuximab to primary radiation therapy for localized esophageal cancer. Crosby presented results of a randomized trial wherein patients with localized (stage I-III) esophageal cancer (less than 10 cm). Patients were excluded if they had celiac lymph-node involvement. The [...]

Should You Get the HPV Vaccine?

You don’t have to be a virgin to be protected against cancer. By Jake Blumgart|Posted Friday, Jan. 25, 2013, at 1:22 PM ET Source: Slate A doctor gives a 13-year-old girl an HPV vaccination Photo by Joe Raedle/Getty Images. The human papillomavirus has the dubious distinction of being the sexually transmitted disease you are most likely to get. It’s also the leading cause of cervical cancer. January has, somewhat arbitrarily, been dubbed Cervical Health Awareness Month (also National Hobby Month and Hot Tea Month, the last at least for good reason). While cervical cancer is the disease most commonly associated with HPV, a recent report from the American Cancer Society emphasizes that HPV’s threat is not gender-specific or organ-specific. While cervical cancer cases are in decline (as are general cancer rates), cancers linked to HPV are on the rise. The increasing prevalence of HPV-linked cancers should permanently alter our limited conception of the disease as chiefly a women’s issue. Oropharyngeal (which I’ll be vulgarizing as “oral”) and anal HPV-related cancers (which particularly afflict men who have sex with men) are becoming more common. Oral malignancies account for 37.3 percent of HPV-related cancers, edging out cervical cancer, which makes up 32.7 percent. For men, oral cancers make up 78.2 percent of total HPV-related cancer incidences, and they account for 11.6 percent of cases among women. The death rate for oral cancer is three times higher than that for cervical cancer. (About 40 percent of penile cancer cases are HPV-related, but rates [...]

2013-01-28T14:28:34-07:00January, 2013|OCF In The News, Oral Cancer News|
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