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Tag: "tumors" at medical news

Software Improvements in Breast MRI Scans

...er of false positive identifications of malignant tumors and the subsequent need for biopsies. Teresa Williams, M.D., and colleagues at the Seattle Cancer Care Alliance and the University of Washington Medical Center did a retrospective examination of 154 breast lesions deemed suspicious by radiologists ...

The Bottleneck in Neuroblastoma

...e inhibitors that interrupt a critical step in the tumors growth process. These approaches are targeted therapies--aimed in highly selective ways at cancer cells, but sparing healthy cells, said Maris. But in order to best guide us to the most appropriate treatments, we need greater understanding of the a...

Recall of the AIDS Drug Causes Panic in Zambia

...uct was made. The contaminant can cause cancerous tumors and genetic mutation that could harm unborn children if used during pregnancy. Purity Mwamba, an HIV-positive housewife in the capital, Lusaka, said: "I may not be on Viracept, but I am deeply concerned as a person living with HIV and on ARVs [antir...

New Research Centre at Sydney to Lead Cancer Fight

...g for early trials. The drug aims to stop cancer tumors from developing blood vessels to continue their growth after initial cell development. Work on the 17,000sq m building, which will be on the on the northern end of the university's Randwick campus, will begin in October this year with a finish date...

Tree Bark Substance may Hold New Lung-cancer Treatment

...hone, they are hoping to selectively target cancer tumors and kill them more powerfully. Future therapies based on beta-lapachone and NQO1 interaction have the potential to play a major role in treating devastating drug-resistant cancers such as non-small cell lung cancer, said Dr. Erik Bey, lead author o...

Loss of Antenna Leads to Cancer in Insects

...their cilia, and this absence may help explain why tumors fail to respond properly to environmental cues that cause normal cells to stop growing. Hence, the discovery that too much HEF1 and Aurora A cause cilia to disassemble provides important hints into what may be happening in cancers. Defects in cilia...

Novel Technology to Locate and Treat Tumors

...nstrated a new way to target and potentially treat tumors using a short piece of protein that acts like a n...gh the bloodstream and accumulated in mouse breast tumors grown to different stages on the leg of a mouse. The researchers demonstrated that by attaching fl...

Cancer Cells Reprogram Energy Needs To Grow And Spread

...ation and characterized by the tendency to develop tumors in many parts of the body, including the kidney, brain and adrenal glands. Semenza and colleagues measured mitochondria content and oxygen use in kidney cancer cells that contain no VHL protein and in the same cells with VHL engineered back in. Res...

Diabetes Drug Dramatically Boosts Potency of Platinum Chemotherapy

...diabetes drug rosiglitazone halted or shrank mouse tumors as much as three times more effectively than eithe...treated with platinum-based chemotherapy, to which tumors eventually become resistant. Moreover, the experiments suggest the combination might extend the use ...

Hepatitis C Carries Another Risk-Cancer Of The Immune System

...spleen and other organs of the immune system, with tumors developing from white blood cells. It is more common in men than women. Says study author Dr. Thomas Giordano, assistant professor of medicine at Baylor College of Medicine in Houston: "If I had hepatitis C, this would be one more piece of evidence...

Aspirin a Day Can Keep Colon Cancer Away

...le side effects. Bowel cancer refers to malignant tumors in the lower end of the gastro-intestinal tract. About 80 percent of bowel cancers occur in the large intestine and 20 percent in the rectum, with anal cancer being rare. An Oxford University study showed that taking one 300 mg tablet a day for mor...

Blocking Enzyme Can Treat Breast Cancer

...rs. It also prevented the secondary development of tumors in the lungs, reported the online edition BBC News. Over-expression of PTP1B has already been implicated in the development of diabetes and obesity, where it shuts down insulin receptors, leading a number of drug companies to develop compounds to b...

Targeting Sugar on Blood Vessels may Inhibit Cancer Growth

...re Medicine in UCSDs Department of Medicine. Solid tumors need a network of blood vessels, or vasculature, i...ature, and in doing so, altered the growth rate of tumors prepared from lung carcinoma cells in the mice. "We theorized that by targeting the sugar, heparan...

Being Overzealous With Multivitamins May Lead To Prostate Cancer

...rs found no increase in the risk of early prostate tumors among heavy vitamin users. The researchers speculate that perhaps high-dose vitamins had little effect until a tumor appeared, and then could spur its growth.They also found no heightened risk among men who took only one vitamin a day, Leitzmann says...

Gene Thought to Help Kill Cancer Cells may Actually Help Them Thrive

...esearchers found that 70 percent of subjects whose tumors had mutations in the gene p53 were still alive aft...ugs to disable the functioning of this gene in the tumors of patients undergoing chemotherapy. P53 has long been recognized as a key player in directing che...

Cryoablation is a Safe Procedure for Breast Cancer Patients

...r. Sisney. Over the first year of follow up, the tumors slowly are melting away on imaging as the body presumably reabsorbed the tissue. It is exciting that others have suggested that an immune response may be occurring that may give additional protection, she said. Many questions remain unanswered regard...

Effects on Breast Tumors of DNA Alternations in 3 Genes Described

... their sequence - is one of the characteristics of tumors responsible for some of their disease properties,"...than in ER-positive tumors," said Tao. ER-positive tumors are those that express receptors for the hormone estrogen. Such tumors respond to treatments that bl...

Study Implicates Protein as a Trigger of Advanced Prostate Cancer Recurrence

...y one-third of androgen-independent human prostate tumors contain an activated Ack1 molecule. "The study is telling us this is a target for therapy and perhaps a very important target for therapy," Earp said....

Researchers Have Identified Cancer Promoter Genes

...their sequence -- is one of the characteristics of tumors responsible for some of their disease properties. ...n in ER-positive tumors," said Tao. ER-positive tumors are hose that express receptors for the hormone estrogen. Such tumors counter treatments that block ...

Hexavalent Chromium in Drinking Water Causes Cancer in Mice

...study showed that the mice had developed malignant tumors upon administration of the chemical. "Previous ...ed increases in the number of benign and malignant tumors in the mices small intestines, which increased with dose in both males and females. "We found tha...

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