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Lack of collagen increases likelihood of osteoarthritis

Duke University Medical Center researchers have found that joints whose cartilage lacks a specific type of collagen will develop osteoarthritis – the so-called "wear-and-tear" form of the disease – at a greatly accelerated rate.

20 Feb 2005

Exercise and dietary changes vital in taking and keeping off weight that is associated with many chronic health problems

When the National Academy of Science’s Institute of Medicine recently announced that Americans should exercise an hour a day to fight the country’s growing obesity epidemic, collective groans could be heard in big cities and small towns everywhere.

20 Feb 2005

Pitt researcher presents findings on when to accept organ transplants

A transplant is the only option for someone with end-stage liver disease, but patients face difficult questions when choosing the best time to receive a transplant.

20 Feb 2005

Better ways to heal and regenerate bones using microcomputed tomography imaging

Tissue engineers can choose from a wide range of living cells, biomaterials and proteins to repair a bone defect. But finding the optimum combination requires improved methods for tracking the healing process.

20 Feb 2005

Beta blocker lowers blood pressure and wards off repeat heart attacks

A form of beta blocker, a drug commonly used to lower blood pressure and ward off repeat heart attacks, may provide the answer to preventing osteoporosis, said a Baylor College of Medicine researcher.

20 Feb 2005

New bone marrow model could help people with sickle cell disease

A new model showing how sickle cell blood cells operate within bone marrow is presented at a conference in Austria today. Researchers at Imperial College London, who developed the model, hope that it will eventually be used by clinicians to advance more effective treatments for sickle cell disease.

20 Feb 2005

Genetic signature that can identify breast cancer patients at high risk of distant recurrence

Researchers have discovered a genetic signature that can identify breast cancer patients at high risk of distant recurrence, reporting their results in this week’s issue of The Lancet.

20 Feb 2005

Air pollution thickens the blood and boosts inflammation

Air pollution, and especially particulate matter, thickens the blood and boosts inflammation, finds experimental research in Occupational and Environmental Medicine.

20 Feb 2005

Cannabis use may increase risk of stroke

Regular users of cannabis could be putting themselves at risk of stroke, while they are still young, indicates a case report, published in the Journal of Neurology Neurosurgery and Psychiatry.

20 Feb 2005

Quetiapine speeds up rate of decline in Alzheimers

Quetiapine, a drug commonly used in nursing homes to treat agitation and related symptoms in people with Alzheimers' disease actually worsens patients' illness, speeding up their rate of decline significantly, says a paper published on bmj.com.

20 Feb 2005

Massachusetts support of stem cell research

The Massachusetts Medical Society, the statewide association of physicians with some 18,000 members, has offered testimony before the Joint Committee on Economic Development and Emerging Technologies in support of Senate Bill 25, An Act Promoting Stem Cell Research.

17 Feb 2005

Are hormone therapy drugs safe?

The history of hormone therapy drugs – once thought of as almost magic pills to keep women healthy, vital and young – shows why it is so important to conduct research studies to identify the risks and benefits of drugs, say researchers from Wake Forest University Baptist Medical Center.

17 Feb 2005

$9.8 million grant to research cancer risks from space radiation

NASA awarded a research grant worth more than $9.8 million over five-years to the University of Texas Southwestern Medical Center in Dallas.

16 Feb 2005

Immediate access to antibiotics stems spread of sexually transmitted diseases

In an editorial to be published in The New England Journal of Medicine, researchers at Johns Hopkins offer their support for a study which shows that providing faster, more direct access to antibiotics for partners of newly infected patients reduces re-infection rates and spread of sexually transmitted diseases, such as gonorrhea and Chlamydia, compared to standard practice.

16 Feb 2005

Young blood revives aging muscles

Any older person can attest that aging muscles don't heal like young ones. But it turns out that's not the muscle's fault. A study in the Feb. 17 issue of Nature shows that it's old blood that keeps the muscles down.

16 Feb 2005

Protein may provide a powerful new therapeutic tool for fighting kidney failure

Kidney failure is a significant risk for patients undergoing cardiopulmonary bypass surgery, radiologic testing, antibiotic therapy or in patients suffering from severe infections. More than 80 percent of patients with postoperative acute renal failure die.

16 Feb 2005

Changing chemistry helps explain estrogen threat to the heart

A piece of the topical puzzle of how estrogen goes from protecting women from heart disease to apparently increasing their risk later in life may have been found.

16 Feb 2005

Schizophrenia may arise from a single genetic defect

Researchers have long puzzled over the apparently multiple causes of complex developmental disorders such as schizophrenia. Individuals seem to be predisposed to the disease by a tragic, mysterious combination of genetics, prenatal trauma, viral infection, and early experience.

16 Feb 2005

Research shows that individual NAc neurons play a role in Pavlovian learning

While the brain center called the nucleus accumbens (NAc) has been called a key component of the brain's "reward" pathways, researchers' experiments with rats have now shown that the center processes not only rewarding stimuli, but also aversive stimuli.

16 Feb 2005

New findings challenge one of the established views of how nerve cells communicate with one another

Every time we move, feel emotions, think or remember, the nerve cells, or neurons, in our body transmit messages to one another via chemical signals called neurotransmitters. Within neurons are tiny organelles called synaptic vesicles that sequester neurotransmitters and release them when needed into the synapse, or space between nerve cells, where the chemical signal is transmitted to other neurons.

16 Feb 2005