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Fibroblast research could lead to alternatives to implanted electronic pacemakers

In guinea pig experiments, Johns Hopkins scientists fused common connective tissue cells taken from lungs with heart muscle cells to create a safe and effective biological pacemaker whose cells can fire on their own and naturally regulate the muscle's rhythmic beat.

5 Dec 2005

Dialysis patients may be overmedicated

Changes in a widely used assay (blood test) for parathyroid hormone (PTH) have made its use with the established guidelines for end stage renal disease clinical management both inappropriate and potentially harmful to patients. This research is published in the journal Seminars in Dialysis.

5 Dec 2005

Preventing muscle wasting with a leucine-rich diet

Muscle in adults is constantly being built and broken down. As young adults we keep the two processes in balance, but when we age breakdown starts to win. However, adding the amino acid leucine to the diet of old individuals can set things straight again.

5 Dec 2005

Aldosterone shows promise as stroke treatment

A bi-polar hormone that can contribute to strokes and minimize their damage is emerging as a therapeutic target in the battle against these brain attacks, researchers say.

5 Dec 2005

The earlier cochlear implants considered, the better

New research at Johns Hopkins has clearly demonstrated the ability of cochlear implants in very young animals to forge normal nerve fibers that transmit sound and to restore hearing by reversing or preventing damage to the brain's auditory system.

5 Dec 2005

LEDGF protein controls the location of HIV integration in human cells

A human DNA-associated protein called LEDGF is the first such molecule found to control the location of HIV integration in human cells, according to researchers at the University of Pennsylvania School of Medicine.

5 Dec 2005

Researchers link microRNA - miR 196 - to limb development

A tiny strand of molecules plays a role in how our arms and legs develop and grow - a finding that sheds light on perplexing bits of material once dismissed as genetic "junk," say scientists at the University of Florida and Harvard University.

5 Dec 2005

Researchers move in on novel therapeutics to inhibit melanoma

Northwestern University researchers have developed a novel, three-dimensional model that allows scientists to observe how interacting with the microenvironment of metastatic melanoma cells induces normal skin cells to become similar to aggressive cancer cells that migrate and spread throughout the body.

5 Dec 2005

Researchers detail mechanism of stroke

In the neural train wreck that is stroke, the cutoff of oxygen kills brain cells through a buildup of acid, as well as by overexciting receptors on the surface of brain cells.

5 Dec 2005

Unexpected link between muscular dystrophy and muscle wasting associated with cancer

A new study provides important insight into the mechanisms of a muscle wasting disorder that interferes with treatment for cancer and has a negative impact on patient survival.

5 Dec 2005

CFH Y402H confers similar risk of soft drusen and both forms of advanced AMD

Gene is associated with increased risk of precursor of macular degeneration A variant in a gene called Complement Factor H (CFH) appears to contribute to the increased risk of advanced age-related macular degeneration (AMD) largely or entirely through its impact on the development of a precursor of advanced AMD called soft drusen (small yellowish, extracellular deposits of lipid, protein and cellular debris in the back of the eye), according to a multinational team of researchers.

2 Dec 2005

Discovery of genetic mechanism that causes new arteries to grow in response to blocked arteries

Researchers at the San Francisco VA Medical Center have uncovered part of the genetic mechanism that causes new arteries to grow in response to blocked arteries.

2 Dec 2005

Findings may help in development of new anti-inflammatory compounds

Virginia Commonwealth University researchers studying the enzyme that triggers inflammation have found that it may be a target for a new class of anti-inflammatory drugs to treat arthritis, asthma, multiple sclerosis, lung and colon cancers and Alzheimer's disease.

2 Dec 2005

Disruption of normal gene interaction linked to schizophrenia

Disruption of the normal interaction between the genes PRODH and COMT contributes directly to major symptoms of schizophrenia by upsetting the balance of the brain chemicals glutamate and dopamine, according to a group of investigators that includes a scientist now at St. Jude Children's Research Hospital.

2 Dec 2005

Schizotypy, creativity and mating success in humans

The more creative a person is, the more sexual partners they are likely to have, according to a pioneering study which could explain the behaviour of notorious womanisers such as poets Lord Byron and Dylan Thomas.

2 Dec 2005

Inhibition of FLT3 signaling targets DCs to ameliorate autoimmune disease

Scientists at the Johns Hopkins Kimmel Cancer Center have found that a gene pathway linked to a deadly form of leukemia may provide a new way to treat autoimmune diseases, including multiple sclerosis.

2 Dec 2005

Bisphenol A (BPA) has been linked to damage in developing brain tissue

The chemical bisphenol A (BPA), widely used in products such as food cans, milk container linings, water pipes and even dental sealants, has now been found to disrupt important effects of estrogen in the developing brain.

2 Dec 2005

Carvedilol, a cardiovascular drug, may improve heart failure and help prevent sudden death

Research shows that Carvedilol, a cardiovascular drug, could be useful in reducing cardiac death in high risk patients with prior myocardial infarction and/or heart failure and also in reducing the incidence and/or preventing the occurrence of atrial fibrillation in a number of clinical situations.

2 Dec 2005

Why we put weight back on

You've successfully dropped those extra pounds only to discover that they creep back on again. Columbia University researchers may have now worked out why.

2 Dec 2005

Artificial mammalian origin of replication

A collaboration of researchers from Harvard Medical School and the University of Virginia, led by Dr. Anindya Dutta, has created an artificial mammalian origin of replication that will facilitate the future study of mammalian DNA replication.

2 Dec 2005