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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

NCI scientists visualize gene regulation in living cells

A research team led by scientists at the National Cancer Institute (NCI), part of the National Institutes of Health (NIH), has applied advanced imaging methods and computer simulations to be able to glance at the regulation of a cancer-related gene in a living cell. They found that the efficiency with which the components of the cell's gene reading machinery come together has an impact on gene expression, the process by which a gene translates its information into a new protein. The findings, published in the May 23, 2008 issue of Molecular Cell, shed new light on the means by which living cells regulate gene activity.

22 May 2008

RNA toxicity contributes to neurodegenerative disease

Expanding on prior research performed at the University of Pennsylvania, Penn biologists have determined that faulty RNA, the blueprint that creates mutated, toxic proteins, contributes to a family of neurodegenerative disorders in humans.

21 May 2008

Scientists reveal the genetic determinants of fat storage in cells

New research by the Gladstone Institutes of Cardiovascular Disease (GICD) and the University of California, San Francisco (UCSF), has revealed the genetic determinants of fat storage in cells, which may lead to a new understanding of and potential treatments for obesity, diabetes, and heart disease. While scientists have long understood that lipid droplets contribute to fat build up in cells, the genes involved in droplet biology have been a focus of extensive research.

21 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

New program promises to solve puzzling medical cases

A new research program in the U.S. promises to provide some answers for people suffering from mysterious diseases that have defied diagnosis.

21 May 2008

Babies born preterm more than twice as likely to have major birth defects as full-term infants

Preterm birth, live birth before 37 completed weeks gestation, is a growing national health crisis, according to the March of Dimes. More than a half million babies are born too soon each year, and the rate continues to rise. Birth defects and preterm birth are the leading causes of infant death.

21 May 2008

New prognostic markers for gastric cancer patients

In standard clinical settings, DNA microarrays are currently unsuitable for routine use. Prognostic classification on formalin-fixed paraffin-embedded tissues is required. In this study, we looked for new molecular markers for identifying the prognosis of gastric cancer patients.

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

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

Government funds Rochester heart rhythm disorder research into third decade

A team of cardiologists at the University of Rochester Medical Center has won a four-year, $2.3 million grant from the National Institutes of Health (NIH) to continue its study of a cardiac condition that places teens at risk for sudden death. With the latest award, the team will have received continuous NIH funding for 23 years - one of the longest, continuous, investigator-initiated research projects at the University of Rochester.

20 May 2008

Shingles runs in the family

Shingles appears when the virus that causes chickenpox, varicella zoster, is reactivated in spinal nerves; most adults carry the varicella zoster virus, but only 10 percent to 30 percent develop shingles.

20 May 2008

Breast cancer gene a culprit in prostate cancer

Australian researchers have discovered that a mutated version of the BRCA-2 gene known to lead to breast and ovarian cancer, is also a culprit in prostate cancer in men.

20 May 2008

Extinct Tasmanian tiger genes shown to function in a mouse

Researchers from the University of Melbourne, Australia, and the University of Texas, USA, have extracted genes from the extinct Tasmanian tiger (thylacine), inserted it into a mouse and observed a biological function - this is a world first for the use of the DNA of an extinct species to induce a functional response in another living organism.

20 May 2008

Chemically modified protein may help people with hard-to-treat hemophilia

Pathologists at The University of Texas Health Science Center at Houston have developed a chemically modified protein that may help people with a hard-to-treat form of a genetic bleeding disorder known as Hemophilia A. The discovery and the results of pre-clinical tests appear in the May 2 issue of the Journal of Biological Chemistry.

19 May 2008

Mapping of prostate cancer genes opens the door to new treatments

Genetic changes during the initiation and progression of prostate cancer have eluded scientists to date. Now for the first time researchers have identified a specific gene expression profile of prostate cancer stem cells, with important implications for future treatments.

19 May 2008

An improved gene therapy agent from University of Florida

Replacing one amino acid on the surface of a virus that shepherds corrective genes into cells could be the breakthrough scientists have needed to make gene therapy a more viable option for treating genetic diseases such as hemophilia, University of Florida researchers say.

19 May 2008

Reliable genetic tests could predict lung cancer recurrence

The goal of developing reliable genetic tests to guide lung cancer treatment has taken a step forward. Researchers at Columbia University recently evaluated the ability of five high-risk genetic profiles, or signatures, to predict the likelihood that cancer would recur in patients whose non-small cell lung cancer was caught early and surgically removed.

19 May 2008