11/14/2007 web-based article staff ScienceDaily.com The GPRC5A gene, which is under-expressed in human lung cancer cells, suppresses lung tumors in mouse models and could provide a key to attacking lung cancer in humans, researchers at The University of Texas M. D. Anderson Cancer Center report in the Nov. 21 edition of The Journal of the National Cancer Institute. The study found that mice with both of their GPRC5A genes suppressed developed normally until their second year of life, when 76 percent developed precancerous lesions called adenomas in their lungs and another 17 percent developed malignancies called adenocarcinomas. Only 10 percent of mice with both GPRC5A genes intact developed adenomas, and only 11 percent with one working version of the gene. None of the mice in the latter two groups developed lung cancer. "In humans, lung adenocarcinomas are the most common type of lung cancer and the major cause of death from this disease," says senior author Reuben Lotan, Ph.D., professor in M. D. Anderson's Department of Thoracic/ Head and Neck Medical Oncology. "Further study substantiating the role of the GPRC5A gene in human lung cancer could lead to the development of novel approaches for lung cancer prevention, diagnosis and treatment." Lung cancer is the leading cause of deaths by cancer, killing 160,000 Americans annually. Lotan and colleagues earlier had shown that Gprc5a protein is detected in the lungs more than in any other tissue and that it is underexpressed in human non-small cell lung cancer and in head and neck [...]

11/13/2007 web-based article staff ScienceDaily.com Positron emission tomography or PET scans can help clinicians diagnose and treat some cancers, but it is not clear yet whether the imaging technology helps people with cancer live longer and healthier lives, according to a comprehensive review by the U.K. National Health Service. PET scans are one of the latest tools used to detect and determine a cancer's activity in the body. PET is generally more accurate than other imaging technologies such as computerized tomography (CT) or magnetic resonance imaging (MRI) scans. Using tiny radioactive elements, a PET scan can zero in on the distinctive biochemical fingerprints that distinguish cancerous cells from normal tissue. The most common type of PET scan, called FDG-PET, appears to lead to the best therapy for patients who have a newer diagnosis of non-small cell lung cancer and in those who have undergone treatment for Hodgkin's lymphoma. FDG-PET can also help identify the best treatment for patients with colorectal cancer, and it can detect small, potentially malignant lung growths called solitary pulmonary nodules, say review authors led by Karen Facey. "For other cancers, PET can often improve the accuracy of detecting a tumor, but it is unclear how this affects a patient's treatment and ultimately their outcome," said Facey, an evidence-based health policy researcher. The most reliable evidence "would suggest that FDG-PET is cost-effective [in the United Kingdom] in non-small cell lung cancer and Hodgkin's lymphoma," she added. Facey said this is the first comprehensive review of PET for [...]

11/13/2007 Eugene, OR staff Register-Guard (www.registerguard.com) The popular image of cancer patients facing their condition with a mixture of defiance and determined optimism is so pervasive that oncologists sometimes refer to it as the “prison of positive thinking.” “In the breast-cancer culture, cheerfulness is more or less mandatory, dissent a kind of treason,” journalist Barbara Ehrenreich wrote in Harper’s magazine after her own breast cancer diagnosis. For better or for worse, the treason has been pardoned and those prison doors have been pried open by a University of Pennsylvania research team. A study led by psychologist James Coyne that will be published in the December issue of the journal Cancer concludes that emotional well-being had no effect on overall cancer survival rates. But if previous reaction to similar findings is any indication, many prisoners of positive thinking will elect to remain in their cells. There’s really nothing wrong with that, Coyne says. There can be lots of emotional and social benefits to taking a positive approach as long as it isn’t tied to an expectation that it actually enhances cancer survival. The real downside of the “live strong, think positive” mantra is that when cancer patients experience the normal cycles of sadness, depression and self-pity, they exaggerate the consequences. They feel weak and defeated, and fear they’re letting their loved ones down. Even worse, they feel they may actually be reducing their chances of survival. Depression equals death. Coyne’s study is the largest ever to focus specifically on the relationship [...]

11/12/2007 Denver, CO Regina Sass AssociatedContent (www.associatedcontent.com) Researchers at Imperial College, London, United Kingdom, have shown that by using a combination of light activated cancer drugs with antibodies targeted to find cancerous tumors, the antibodies might be able to be a much more effective treatment for many different types of cancers. In the study, the researchers show how they have been able to attach 10 light activated molecules of a potent cancer drug to an antibody that is known to seek out the cancerous cells. They have been able to prove that this method makes it possible to deliver the powerful drug molecules to the cancer targets more efficiently than when they are not attached to an antibody. The process is called photodynamic therapy (PDT). It focuses on getting the drugs to the cancerous tissues and then lighting the area with a cold laser. The cold laser starts off a chain reaction by converting oxygen to a very toxic type of oxygen-like bleach. The bleach then destroys any cells in its vicinity. If it has been targeted right to the tumor, then the tumor is destroyed, if it misses the tumor, like in other methods of delivery, healthy tissue can be destroyed. This has been shown to be a successful method for treating cancers of the head and neck, prostate and skin. But there is a limitation to the current PDT. And that is the fact that the light activated drugs are not the efficient in hitting the tumors. Basically [...]

11/12/2007 Boston, MA Scott Allen Boston Globe Scientists are only beginning to discover the hidden role of some viruses and bacteria The almond-shaped lump on Brian Hill's throat didn't make sense to him. The doctor said it was a symptom of advanced oral cancer, but Hill had never smoked a cigarette or chewed a plug of tobacco, considered the main causes of the disease when he was diagnosed in 1997. So why was it there? Not until four years later did Hill get an explanation for his brush with death: a microbe called human papilloma virus-16 had apparently moved into his tonsils, gradually turning normal cells into cancer. Hill, now 59, had become part of a wave of relatively young nonsmokers who contracted oral cancer from the sexually transmitted virus, fueling an overall increase in new cases. Viruses such as human papilloma may be the most overlooked bad guys in the war on cancer, silent invaders that contribute to more than a dozen malignancies and may cause 15 percent of the cancer cases worldwide each year. "What we know about HPV-16 as a cancer causer is just the tip of the iceberg," said Hill, founder of the Oral Cancer Foundation, which funds research for a disease that strikes 34,000 Americans annually and is caused by the same virus that can lead to cancers of the cervix, vulva, anus, and penis. The cancer toll from germs - both viruses and bacteria - may turn out to be higher as researchers discover [...]

11/11/2007 Bolton, England Jane Lavender Bolton News (www.theboltonnews.co.uk) Cancer patients are to be given "on the spot" test results following the introduction of a speedier diagnosis system at the Royal Bolton Hospital. People with suspected head and neck cancer can be in and out of hospital in less than four hours. In that time they will have been tested and diagnosed - a vast improvement on previous times which saw many patients wait weeks for results. People who find a lump see their GP and may be referred to hospital for further checks. If they arrive at 9am on the day of their hospital appointment, they could be told by a consultant whether or not they have cancer by 11.30am the same day. It is the first scheme of its kind at the hospital. Karenza Graves, head and neck specialist nurse at the Royal Bolton Hospital, said: "This certainly speeds things up. There is a good prognosis with head and neck cancer if there is an early diagnosis." "Finding a lump is an extremely worrying time for a patient, so making this process faster eases their concern, especially if the tests show there is nothing to worry about." Around three patients are referred to the head and neck cancer clinic every week with an average of 75 people diagnosed with the disease every year. The fast scheme was piloted in January and ran until the summer, but the scheme was not introduced full-time until a few weeks ago. Among those [...]

11/11/2007 web-based article staff Huliq.com According to the report, represented in the U.S. on the part of CDC - national Center for Disease Control and Prevention in November 9, 2007, the decline in smoking rates during the recent years has stalled, thus turning the problem into a real concern for the federal health officials. It happened so that the positive results of smoking rate decline have ceased to please authorities involved in anti-smoking campaigns and programs since 2004. Among serious reasons of this process Jia-Rui Chong from Los Angeles Times named reduced spendings on anti-tobacco campaigns and bigger marketing budgets from cigarette companies. As the director of the CDC's Office on Smoking and Health Dr. Matt McKenna said, "What is happening doesn't have to happen. With appropriate support and efforts and counter-marketing, tens of thousands of people don't have to die." In McKenna's estimates a 0.1% decline in 2006 doesn't play a significant role in the solution of this vital problem, which takes lives of 480000 people each year and results in tobacco-related diseases. "Among smokers who already have a smoking-related chronic disease, those who quit have a lower risk for death from the disease than those who continue smoking," states the CDC. Marc Kaufman from The Washington Post reported that statistic data collected during the last 40 years of researches have shown unexpected and discouraging results. It is the first time since the researches have been carried out, that smoking rates have stalled for three years and have levelled [...]

11/8/2007 United Kingdom Emily Walker SwintonAdvertiser (www.thisisswindon.co.uk) Most men would be delighted to hear that their wife will never speak again, but it does not stop Bob Taylor's wife nagging him. Lorry driver Bob, 54, fell in love with Rita, 49, across a busy nightclub dance floor a year after the care worker was diagnosed with cancer and had to have her tongue removed. Bob was in the Cardiff bar after driving to the Welsh city in December 2004 from his home in Swindon and said Rita silently captured his heart. "I think it was the physical attraction to start with," said Bob. "We smiled at each other across the room. "Then I went over and tried to chat her up but she didn't say anything so I said You don't say much, do you?' "Then her friend told me she couldn't talk because she had tongue cancer. "The fact that she couldn't talk didn't stop us getting to know each other, because we did most of the talking on her notepad. "After that night, we started texting each other. Then when I got home from work in the evenings we would email. "By Christmas she came to stay with me in Swindon." Bob gave up his job and moved to Cardiff to look after Rita and set up his graffiti and chewing gum cleaning company called Grime Blasters. Then last August Rita made her silent "I do" to Bob when they got married. "I lip-read Rita saying she would [...]

11/7/2007 web-based article staff Health24.com In a study of sexually active young male, heterosexual college students, almost two thirds developed genital human papillomavirus (HPV) infection over two years of follow-up, according to Seattle-based researchers. Certain strains of HPV, which can be transmitted from male to female partners, are responsible for most cases of cervical cancer. In The Journal of Infectious Diseases, Dr Laura A. Koutsky and colleagues at the University of Washington note that, although much is known about HPV infection in women, this is not the case in men. To investigate further, the researchers collected samples of genital cells at four-month intervals from 240 heterosexually active male university students between 18 and 20 years old. Higher rates in males After 24 months, the incidence of new genital HPV infections was 62.4 percent. This is considerably greater than the 38- to 43 percent rate seen in comparable studies of young women, the investigators note. Acquisition rates did not differ by site of initial detection. Overall, 33 different HPV types were recorded, but the most commonly detected types were HPV-16 and HPV-84. HPV-16 is a subtype known to be associated with cervical cancer - previous studies have found that about 50 percent of cervical cancers are caused by this virus. Among the factors associated with increased risk of HPV infection were having a new sex partner within four months of evaluation and having a history of cigarette smoking. "The high rates of HPV infection in men," the investigators conclude, "should be [...]