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Study finds increased risk of some cancers among HIV-positive people in U.S.

HIV-positive people in the U.S., many of whom are living longer because of antiretroviral drugs, are at an increased risk for certain types of cancers, according to a study published Tuesday in the Annals of Internal Medicine, Reuters reports.

22 May 2008

Simple blood test could indicate higher risk for coronary events in women after post-menopausal hormone therapies

A research study has found that a simple blood test may indicate whether post-menopausal hormone therapies present an elevated risk of a heart attack.

22 May 2008

Yerkes researchers develop first transgenic nonhuman primate model of Huntington's disease

In the first study of its kind, researchers at the Yerkes National Primate Research Center, Emory University, in collaboration with researchers from the Department of Human Genetics at Emory's School of Medicine, have developed the first transgenic nonhuman primate model of Huntington's disease (HD), one of the most devastating human neurodegenerative diseases.

22 May 2008

Unique genetic signature alerts physicians to high-risk breast tumors

A unique genetic signature can alert physicians to high-risk breast tumors that are masquerading as low-risk tumors, according to research at Washington University School of Medicine in St. Louis and collaborating institutions. Although these tumors are apparently estrogen-receptor positive - meaning they should depend on estrogen to grow - they don't respond well to anti-estrogen therapy.

21 May 2008

DNA modification seen in colorectal tumors helps predict outcomes, John Wayne Cancer Institute researchers find

An international study led by researchers at the John Wayne Cancer Institute at Saint John's Health Center has found that modifications to DNA found on multiple chromosomes in tumors can help to predict outcomes in patients with early-stage rectal cancer.

21 May 2008

Glycemic stability may be important key to recovery from critical illness

Widely varying blood glucose levels may pose as great a threat, or possibly a greater threat, to critically ill patients as high, but steady, glycemic levels, according to researchers in Saudi Arabia, who will present their findings at the American Thoracic Society's 2008 International Conference in Toronto on Tuesday, May 20.

21 May 2008

Noninvasive ventilation eases final hours, days for lung cancer patients

For patients with end-stage lung cancer, noninvasive ventilation (NIV) may be more effective at reducing breathing difficulty than standard oxygen therapy, and has the added advantage of reducing patients' reliance on morphine, thus improving lucidity in their final days, according to research presented at the American Thoracic Society's 2008 International Conference in Toronto on Tuesday, May 20.

20 May 2008

Report cites 15 New York State HMOs for setting consumer restrictions on prescription drugs to boost profits

Some HMOs in New York state are restricting patients' access to so-called single-source drugs, brand-name medications for specific ailments that do not have lower-cost generic versions, according to a report released on Sunday, the New York Daily News reports.

20 May 2008

HIV/AIDS experts call for new ideas, increased funding on 25th anniversary of paper identifying virus

A novel strategy, new teams of researchers and increased funding are needed to revitalize the fight against HIV/AIDS worldwide, experts said Monday on the 25th anniversary of the release of the study that identified HIV, AFP/Google.com reports.

20 May 2008

Scientists paint-viruses with proteins to track and treat viral disease and evolution

Biologists from Austria and Singapore developed a technique that adds a new twist on the relationship between biology and art. In an article recently published online in The FASEB Journal and scheduled for the August 2008 print issue, these researchers describe how they were able to coat-or paint-viruses with proteins.

20 May 2008

Targeted therapy can improve outcomes for lung tumors

The first U.S. clinical trial using genetic screening to identify lung tumors likely to respond to targeted therapies supports the use of those drugs as first-line treatment rather than after standard chemotherapy has failed.

20 May 2008

Tuberculosis not the only risk from new immunological drugs

A new survey cautions physicians that drugs commonly prescribed for patients suffering from immunological disorders such as rheumatoid arthritis and inflammatory bowel disease may carry risks of serious infections other than the known risk of tuberculosis. The survey published is in the June 1 issue of Clinical Infectious Diseases, currently available online.

20 May 2008

Rifampin provides new way to treat latent tuberculosis

A new way to treat patients with latent tuberculosis (TB), who are infected with TB but without symptoms, can effectively treat it in less than half the time and at a lower cost than the current standard treatment, according to researchers who conducted a multi-center, randomized controlled trial. The results will be presented at the American Thoracic Society's 2008 International Conference in Toronto on Tuesday, May 20.

20 May 2008

New treatment option for idiopathic pulmonary fibrosis

Patients with idiopathic pulmonary fibrosis (IPF) may have a new treatment option, according to researchers in Japan.

20 May 2008

Mass-producing tunable magnetic nanoparticles

Taking a cue from the semiconductor industry, a team of investigators at Stanford University has developed a method of producing unlimited quantities of highly magnetic nanoparticles suitable for use as magnetic resonance tumor imaging agents.

20 May 2008

Nanoparticle-induced heating boosts antitumor radiation therapy

Radiation therapy is a time-honored and effective component of modern cancer therapy, but its ultimate utility is limited by the fact that some cancer cells are resistant to ionizing radiation.

20 May 2008

Chip-based device measures drug resistance in tumor cells

Multiple drug resistance is a major cause of anticancer therapy failure. Most drug-resistance cancer cells develop this unfortunate characteristic due to a drug-pumping protein known as P-glycoprotein.

20 May 2008

Ideal treatment for potentially fatal heart condition changes with age

Doctors now make more informed decisions on how to treat an electrical disorder of the heart - be it with drugs, an implanted device or nothing - thanks to a series of decades-long, Rochester-based studies.

20 May 2008

Confused about HRT? read on!

As if women are not confused enough about the pros and cons of hormone replacement therapy (HRT), an international group of experts now say safety issues regarding HRT have been "over hyped".

20 May 2008

HRT safe for healthy women entering menopause

HRT in the early postmenopausal period is safe, and healthy women going through the first few years of the menopause who need HRT to relieve symptoms should have no fears about its use. This is the conclusion and clinical advice of the First Global Summit on Menopause-Related Issues, which was held in Zurich on March 29th and 30th, 2008.

20 May 2008