Medicine News and Research

RSS

Study investigates early biology of HIV infection

In July 2005, the race to find a vaccine that would stem the worldwide rate of 13,000 new cases of HIV infection each day moved from competition among research institutions to a strategy of cooperation.

2 May 2006

Sildenafil plus recreational drugs equals risky sexual behaviour

A new survey has found that a significant number of young men have used erectile dysfunction, (ED), medications such as Viagra often in conjunction with other recreational drugs, and most without consulting a physician.

1 May 2006

Method by which Caspase-12 shuts down the body's immune system discovered

Caspase-12 is a molecule with a death-wish. Found only in people of African descent, this protein shuts down our body's immune system, opening the door to potentially lethal infections. In a groundbreaking new study published in the prestigious journal Nature this week, the team that first discovered the role of caspase-12 in humans has now uncovered the mechanism by which it sabotages us, allowing researchers to develop methods to counter its damaging effects.

28 Apr 2006

Tumour specific drugs may render therapies based on a tumor's anatomical location obsolete

The results of a new study at Washington University School of Medicine in St. Louis could eventually have oncologists removing their specialties from their shingles by making therapy based on a tumor's anatomical location obsolete.

28 Apr 2006

HCM detection rates doubled when genetic testing and imaging information are combined

Currently that genetic test correctly detects HCM only 40 percent of the time. But coupled with imaging information, the detection power of the test nearly doubles, to 79 percent, says Steve Ommen, M.D., director of Mayo's HCM Clinic and co-lead investigator of the Mayo Clinic research team.

28 Apr 2006

Economic benefit of federally finded clinical trials exceeds $15 billion

A comprehensive review of all phase III clinical trials supported by one Federal agency finds that, estimated conservatively, the economic benefit in the United States from just eight of these trials exceeded $15 billion over the course of 10 years. The study also found that new discoveries from the trials were responsible for an estimated additional 470,000 healthy years of life. The clinical trials were sponsored by the National Institutes of Health's National Institute of Neurological Disorders and Stroke (NINDS).

28 Apr 2006

Economic benefit of federally finded clinical trials exceeds $15 billion

28 Apr 2006

Discovery brings embryonic stem cell medicine a step closer

A team of scientists announced a critical step on the path of realizing the promise of embryonic stem (ES) cells for medicine. The researchers have discovered unique molecular imprints coupled to DNA in mouse ES cells that help explain the cells' rare ability to form almost any body cell type. These imprints, or "signatures," appear near the master genes that control embryonic development and probably coordinate their activity in the early stages of cell differentiation. Not only do these findings help to unlock the basis for ES cells' seemingly unlimited potential, they also suggest ways to understand why ordinary cells are so limited in their abilities to repair or replace damaged cells.

26 Apr 2006

Studies indicate stem cells are flexible enough to become any cell in the body

Two studies in the April 21, 2006 Cell report new details of the "genetic program" that affords embryonic stem cells the flexibility to give rise to any cell type in the body. Both groups identified mechanisms by which the embryonic stem cells of mice or humans keep from going down any one particular developmental path--that of muscle or nervous tissue, for example--while remaining "poised for activation."

26 Apr 2006

Studies indicate stem cells are flexible enough to become any cell in the body

26 Apr 2006

Osteoporosis could be caused by factors other than declining estrogen levels

New evidence in the April 21, 2006 Cell challenges the long-standing notion that declining estrogen levels alone lead to osteoporosis after women go through menopause. The researchers rather found that high levels of pituitary-derived follicle-stimulating hormone (FSH) cause bone loss in mice. The pituitary is a master gland found at the base of the brain.

26 Apr 2006

Protein made by cancer virus explains how the virus spreads

New research shows that a protein made by a cancer virus causes infected immune cells to cling to other immune cells, enabling the virus to spread.

26 Apr 2006

Potential vaccine for visceral leishmaniasis developed

Development of a fundamentally new "candidate," or potential, vaccine for visceral leishmaniasis (LEASH-ma-NIGH-a-sis), a parasitic disease that kills about 60,000 people annually, is reported in the current issue of ACS Chemical Biology. Spread by the bite of infected female sand flies, visceral leishmaniasis infects about 500,000 people annually, with the majority of cases occurring in India, Bangladesh, Nepal, Sudan and Brazil.

26 Apr 2006

New Hybrid virus may aid treatment of cancer

Researchers at The University of Texas M. D. Anderson Cancer Center have created a new class of hybrid virus and demonstrated its ability to find, highlight, and deliver genes to tumors in mice.

26 Apr 2006

Evidence explains relationship between television and poor diet in children

Researchers from the Harvard School of Public Health (HSPH) and Children's Hospital Boston found that kids who spend more time watching television also eat more of the calorie-dense, low-nutrient foods advertised on television. Previous studies had demonstrated that children who watch more television are more likely to be overweight, but this is the first time a research team has found evidence for a mechanism explaining that relationship.

26 Apr 2006

Caspase-12 antagonists could potentially be useful in the treatment of sepsis and other inflammatory and immune disorders

According to the new study, the presence of caspase-12, which appears to modulate inflammation and innate immunity in humans, increases the body's "vulnerability to bacterial infection and septic shock" while a deficiency confers strong resistance to sepsis. This new discovery suggests that caspase-12 antagonists could be a potentially useful in the treatment of sepsis and other inflammatory and immune disorders.

26 Apr 2006

European flu pandemic plans show gaps and inconsistencies

A report reveals marked discrepancies in pandemic preparedness across Europe. The authors conclude that further planning and implementation is needed so that governments can effectively respond in the event of a pandemic, recommending action by the European Union to ensure governments work together towards a coordinated approach.

26 Apr 2006

Human brain simultaneously communicates in both analog and digital modes

A new study shows that brain cells use a mix of analog and digital coding at the same time to communicate efficiently.

26 Apr 2006

Avian flu vaccine to be developed by Mount Sinai School of Medicine and Bionostra

The Mount Sinai School of Medicine will collaborate with the prestigious Bionostra Group of Spain to develop an avian flu vaccine. The vaccine will protect against the lethal infection of the H5N1 virus.

26 Apr 2006

Children of snorers, three times as likely to snore themselves

Children of parents who snore are three times more likely to snore themselves, according to a new study by researchers at Cincinnati Children's Hospital Medical Center. Furthermore, children who test positive for allergies are twice as likely to snore.

26 Apr 2006