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Cells lining milk ducts hold key to spread of ductal carcinoma in situ

When a form of cancer that begins in the milk ducts of the breast invades neighboring tissue to spread to other parts of the body, the cause lies not in the tumor cells themselves but in a group of abnormal surrounding cells that cause the walls of the duct to deteriorate like a rusty pipe, according to a new study led by Dana-Farber Cancer Institute researchers.

5 May 2008

Secret to long life in lifestyle not genes

A research on the bone health of one of the oldest persons in the world, who recently died at the age of 114, reveals that there were no genetic modifications which could have contributed to this longevity.

5 May 2008

Parental psychiatric disorders associated with autism spectrum disorders in the offspring

Parents of children with autism were roughly twice as likely to have been hospitalized for a mental disorder, such as schizophrenia, than parents of other children, according to an analysis of Swedish birth and hospital records by a University of North Carolina at Chapel Hill researcher and colleagues in the U.S. and Europe.

5 May 2008

It's official - there's a rogue fat gene!

Scientists from Oxford and Cambridge say in their second discovery they have found new genetic variants that influence fat mass, weight and risk of obesity and increase the chances of being fat, which may explain why some people are always battling with their weight.

5 May 2008

Variations of the adiponectin gene may predict risk of breast cancer in women

According to a recent study, led by Virginia Kaklamani, MD, an oncologist at Northwestern Memorial Hospital and assistant professor of medicine, Northwestern University Feinberg School of Medicine, variations of the adiponectin gene, which regulates a number of metabolic processes, may increase a woman's risk of developing breast cancer.

2 May 2008

Harmful blood glucose levels linked to genetic mutation

A genetic mutation that can raise the amount of glucose in a person's blood to harmful levels is identified today in a study in the journal Science.

1 May 2008

Phase of clock gene expression in human leukocytes correlates with habitual sleep timing

The phase of clock gene expression in leukocytes, assessed in the absence of the masking effects of light-dark and sleep-wake cycles, correlates with habitual sleep timing, according to a study published in the May 1 issue of the journal SLEEP.

1 May 2008

Small molecule nutlin-3a activates an important cancer suppressor gene

By activating a cancer suppressor gene, a small molecule called nutlin-3a can block cancer cell division, according to researchers at the National Cancer Institute (NCI), part of the National Institutes of Health.

1 May 2008

U.S. Congress passes genetic nondiscrimination act

The U.S. House of Representatives passed the Genetic Information Nondiscrimination Act (GINA) today by a vote of 414-1, building on the momentum of last week's unanimous Senate vote.

1 May 2008

New understanding of how some bacteria survive antibiotic treatment

Researchers at the University of Illinois at Chicago have discovered how some bacteria can survive antibiotic treatment by turning on resistance mechanisms when exposed to the drugs.

30 Apr 2008

Alzheimer's and diabetes link

Diabetic individuals have a significantly higher risk of developing Alzheimer's disease but the molecular connection between the two remains unexplained. Now, researchers at the Salk Institute for Biological Studies identified the probable molecular basis for the diabetes - Alzheimer's interaction.

30 Apr 2008

Mothers and offspring can share cells throughout life - with positive and negative effects

Cutting the umbilical cord doesn't necessarily sever the physical link between mother and child. Many cells pass back and forth between the mother and fetus during pregnancy and can be detected in the tissues and organs of both even decades later. This mixing of cells from two genetically distinct individuals is called microchimerism. The phenomenon is the focus of an increasing number of scientists who wonder what role these cells play in the body.

30 Apr 2008

First sequence-based map of large-scale structural variation across the human genome

A nationwide team of researchers, funded in part by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH), has produced the first sequence-based map of large-scale structural variation across the human genome. The work, published today in the journal Nature, provides a starting point to examine how such DNA variation contributes to human health and disease.

30 Apr 2008

Study explains why steroid therapy for sinusitis and asthma loses its punch over time

Scientists at Johns Hopkins have outlined a new path for potential therapies to combat inflammation associated with sinusitis and asthma based on a new understanding of the body's earliest immune response in the nose and sinus cavities.

29 Apr 2008

Human protein may offer novel target for blocking HIV infection

A research group supported by the National Institutes of Health (NIH) has uncovered a new route for attacking the human immunodeficiency virus (HIV) that may offer a way to circumvent problems with drug resistance. In findings published today in the online edition of the Proceedings of the National Academy of Sciences, the researchers report that they have blocked HIV infection in the test tube by inactivating a human protein expressed in key immune cells.

29 Apr 2008

Biomarkers identified for idiopathic pulmonary fibrosis

The first evidence of a distinctive protein signature that could help to transform the diagnosis and improve the monitoring of the devastating lung disease idiopathic pulmonary fibrosis (IPF) is being reported by University of Pittsburgh School of Medicine researchers in this month's edition of PLoS Medicine, an open-access journal of the Public Library of Science.

28 Apr 2008

CQ's Carey looks at genetic anti-discrimination measure, legislation to block Medicaid rules implementation, FDA hearings

Mary Agnes Carey, associate editor of CQ HealthBeat, examines Senate approval of genetic nondiscrimination legislation, House passage of a measure to block implementation of new Medicaid rules and hearings about FDA's need for increased inspection resources in this week's "Health on the Hill from kaisernetwork.org and CQ."

28 Apr 2008