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Researchers develop artificial blood vessels from muscle-derived stem cells and a biodegradable polymer

University of Pittsburgh School of Medicine investigators have engineered artificial blood vessels from muscle-derived stem cells (MDSCs) and a biodegradable polymer that exhibit extensive remodeling and remain free of blockages when grafted into rats.

19 Jun 2007

New HHS contracts to prepare for a flu pandemic

HHS Secretary Mike Leavitt has announced the award of two contracts to expand the domestic influenza vaccine manufacturing capacity that could be used in the event of a potential influenza pandemic.

19 Jun 2007

Ethical dilemma of international tissue donation

When the world's poorest sell their bodies to the world's wealthiest in the international tissue donation market they often secure their economic health at the cost of their physical health.

19 Jun 2007

Simple video-based awareness programme could reduce rapidly increasing hospital infection rates

A simple video-based awareness programme significantly improved hand washing among family members visiting sick children in a Paediatric Intensive Care Unit, according to research in the June issue of the UK-based Journal of Clinical Nursing.

19 Jun 2007

Environmental and genetic risk factors in the development of rheumatoid arthritis

Two new studies by a team in Sweden have identified smoking, a low formal level of education and certain metabolic indicators as important risk factors in the development of RA.

19 Jun 2007

Specific behaviors have an effect on adolescents self-perceived age

A Canadian study has confirmed what parents have long suspected: dating, sexual activity and substance use seem to make teens feel older than they really are. And, as adolescents get older, the gap between their chronological age and their self-perceived age widens.

19 Jun 2007

Restricting hospital-based services during SARS outbreak had modest impact

Restrictions on the non-urgent use of hospital-based services that were imposed when a provincial health emergency was declared during the 2003 SARS (Severe Acute Respiratory Syndrome) outbreak in Toronto, Ontario, resulted in only modest reductions in overall admissions.

19 Jun 2007

Acquired DNA key to certain bacterial infection

Researchers announced this week the discovery of a mechanism by which Mycobacterium avium - a bacterium which can result in serious lung infections and is prevalent in emphysema and AIDS patients among others - infects tissue cells or macrophages and thus compromises the body's immunity.

19 Jun 2007

Remicade helps those with ankylosing spondylitis

Data presented at the European League Against Rheumatism (EULAR) Annual European Congress of Rheumatology showed that patients with ankylosing spondylitis (AS) who received REMICADE, (infliximab) over two years experienced significant improvement in spinal mobility.

19 Jun 2007

Climate change is an emerging threat to global public health

It is also highly inequitable, as the greatest risks are to the poorest populations, who have contributed least to greenhouse gas emissions.

19 Jun 2007

A review of PSA use in screening for prostate cancer

Screening for prostate cancer using prostate specific antigen (PSA) testing continues to be problematic. Even though it is unproven whether population-wide screening with PSA can reduce death, illness or disability from prostate cancer, testing has become common in North America.

19 Jun 2007

New target for therapies for retinopathy

A protein long thought to be one of the body's supporting players has quietly been taking a lead role in healthy eyesight, a discovery that could rapidly lead to treatments for babies born before their eyes are finished growing, University of Florida and Harvard Medical School researchers have found.

19 Jun 2007

People with chronic obstructive pulmonary disease have greater arterial stiffness

The researchers also found that those COPD patients with osteoporosis, a common complication of the respiratory disease, had even greater arterial stiffness. These premature signs of aging may explain why COPD patients are at greater risk for cardiovascular disease.

19 Jun 2007

Predicting danger of flu pandemic rests on differences in affected population

Simple Models of Influenza Progression Within a Heterogeneous Population, Dr. Richard C. Larson, a former president of INFORMS and a professor at MIT, discusses the importance of forecasting and ultimately limiting the spread of disease while taking into account the different infection rates among those who might contract the disease.

19 Jun 2007

PINK1 protects from Parkinson's

Parkinson disease (PD) is a common neurodegenerative disease characterized by the selective loss of midbrain dopaminergic neurons.

19 Jun 2007

New targets for Leishmaniasis

A comparison of three parasite species that cause Leishmaniasis has identified a small number of genes, many new to biology, that will provide a framework to target the search for new treatments.

19 Jun 2007

Noninvasive screening in early pregnancy reduces Down's births by 50 percent

Non-invasive screening of pregnant women with ultrasound early in pregnancy, combined with maternal blood analysis, has reduced the number of children born in Denmark with Down Syndrome by 50%, a scientist will tell the annual conference of the European Society of Human Genetics today.

19 Jun 2007