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Incomplete radiation therapy common among medicare recipients with head and neck cancer

Medicare recipients with head and neck cancer commonly do not complete radiation therapy without interruptions or at all, according to a report in the September issue of Archives of Otolaryngology?Head & Neck Surgery, one of the JAMA/Archives journals.

Short-term stress enhances anti-tumor activity in mice, Stanford study shows

STANFORD, Calif. - Public speaking, anyone? Or maybe a big job interview? Dry your palms and take a deep, calming breath; there may be a silver lining. Researchers at the Stanford University School of Medicine have shown that, at least in laboratory mice, bouts of relatively short-term stress can boost the immune system and protect against one type of cancer.

Echoes of phlogiston in stem cell biology

Before it was learned that matter burns by taking up oxygen, most chemists sought to explain combustion as the release of a mysterious substance, which they named "phlogiston". Phlogiston theory was a conceptual breakthrough that helped chemists conduct experiments and share ideas.

Experimental drug lets B cells live and lymphoma cells die

An investigative drug deprived non-Hodgkin lymphoma cells of their ability to survive too long and multiply too fast, according to an early study published recently in the journal Experimental Hematology.

Memories of the way they used to be

A team of researchers from the University of California, San Diego School of Medicine and the Salk Institute for Biological Studies in La Jolla have developed a safe strategy for reprogramming cells to a pluripotent state without use of viral vectors or genomic insertions.

Penn State College of Medicine research isolates liver cancer stem cells prior to tumor formation

HERSHEY, PA -- Penn State College of Medicine researchers, in collaboration with colleagues at the University of Southern California, have taken an important step in understanding the role of stem cells in development of liver cancer. Using a unique approach that involves study of individual cells, the team, led by C.

Killing cancer like a vampire slayer

Like vampires, cancer tumors require an ample supply of blood to stay alive. Without fresh blood for sustenance, cancer cells shrivel up like raisins and die.

UCSF scientists illuminate how microRNAs drive tumor progression

UCSF researchers have identified collections of tiny molecules known as microRNAs that affect distinct processes critical for the progression of cancer. The findings, they say, expand researchers' understanding of the important regulatory function of microRNAs in tumor biology and point to new directions for future study and potential treatments.

Guide on lung cancer in 'never-smokers': A different disease and different treatments

A committee of scientists led by Johns Hopkins investigators has published a new guide to the biology, diagnosis and treatment of lung cancer in never-smokers, fortifying measures for what physicians have long known is a very different disease than in smokers.

Imaging features of intraductal papillary mucinous neoplasms of the pancreas

The intraductal papillary mucinous neoplasms (IPMN) can evolve through all biological stages, from slight dysplasia to carcinoma. As one of the few surgically curable pancreatic tumors, accurate preoperative prediction of malignancy remains one of the major issues in the optimal treatment of IPMNs, and it also influences the outcome of the resection.

Space-related radiation research could help reduce fractures in cancer survivors

HOUSTON -- (Sept. 15, 2009) -- A research project looking for ways to reduce bone loss in astronauts may yield methods of improving the bone health of cancer patients undergoing radiation treatment.

Embargoed news from Annals of Internal Medicine

Early Release:

1. Three Medications Reduce the Risk for Invasive Breast Cancer but Carry Heavy Risks for Adverse Events

Lung cancer suppresses miR-200 to invade and spread

HOUSTON - Primary lung cancer shifts to metastatic disease by suppressing a family of small molecules that normally locks the tumor in a noninvasive state, researchers at The University of Texas M. D. Anderson Cancer Center report in the Sept. 15 edition of Genes and Development.

Blood vessels contribute to their own growth and oxygen delivery to tissues and tumors

CHAPEL HILL -- Researchers at the University of North Carolina at Chapel Hill School of Medicine and the College of Arts & Sciences have identified a new biological process that spurs the growth of new blood vessels.

Diabetes drug kills cancer stem cells in combination treatment in mice

PHILADELPHIA -- In a one-two punch, a familiar diabetes drug reduced tumors faster and prolonged remission in mice longer than chemotherapy alone by targeting cancer stem cells, Harvard Medical School researchers reported in the September 14 online first edition of Cancer Research, a journal of the American Association for Cancer Research.



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