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Asthma patients' immune systems respond differently with allergies

Researchers from the University of Chihuahua in Mexico report that immune systems of patients with asthma responded differently to a common laboratory challenge, depending on whether their white blood cells had been obtained during a time when they were suffering from common season allergic rhinitis or when they were free of such allergic symptoms.

3 Apr 2005

Simvastatin linked to protection against endothelial dysfunction in diabetic rats

Almost two years ago, the diabetes arm of the Heart Protection Study, the largest-ever study using a cholesterol-lowering medication, found that diabetics who took a daily dose of the statin drug simvastatin over five years reduced the risk of a first nonlethal heart attack by 37 percent and risk of a first nonfatal or fatal stroke by 24 percent, regardless of their cholesterol or glucose levels.

3 Apr 2005

Discovery could lead to new drug targets for heart disease

Mice with glowing green hearts have yielded the latest clue in the search for molecules involved in structural heart disease. Vanderbilt University Medical Center investigators found that blocking the activity of a single protein, called CaM kinase, in the mouse heart protects against the damaging effects of a heart attack.

30 Mar 2005

CDC experts sent to Angola to help with Marburg epidemic

In an effort to control the Marburg virus outbreak in Angola, Health officials from the Centers for Disease Control and Prevention in Atlanta will assist the World Health Organization by going to Angola to help with outbreak investigation, infection control and laboratory diagnosis of the disease.

30 Mar 2005

Urine actually helps a particular yeast stick to cells along the urinary tract

The finding might offer a new way to prevent or treat certain yeast and fungal infections, and the researchers' work also provides an unexpected new role for some proteins already known to help hungry yeast live longer.

30 Mar 2005

Clinical study of mirror neurons provides insights into autism and other disorders

Seeing is doing – at least it is when mirror neurons are working normally. But in autistic individuals, say researchers from the University of California, San Diego, the brain circuits that enable people to perceive and understand the actions of others do not behave in the usual way.

29 Mar 2005

Optical coherence tomography (OCT) can successfully identify the characteristics of coronary plaques

A catheter-based imaging technology called optical coherence tomography (OCT) can successfully identify the characteristics of coronary plaques in patients with various cardiac symptoms. The report from researchers at Massachusetts General Hospital (MGH) will appear in the journal Circulation.

29 Mar 2005

DNA sequencing made portable and faster by "colour-blind" technology

Researchers at Baylor College of Medicine (BCM) and Rice University have developed a"colour-blind" method of fluorescence detection which could open new doors that would take DNA sequencing to the patient's bedside, the doctor's office and even the scene of a crime or a battlefield.

29 Mar 2005

An overconfident physician will not seek help or may ignore help that is offered

Physicians' often do not have correct perceptions of the accuracy of their diagnoses at the time they make them, and in significant numbers of cases they may be overconfident - wrong when they believe they are right; or underconfident - right when they believe they are wrong--about their diagnostic assessments, according to a University of Pittsburgh study.

29 Mar 2005

Adult stem cells could be used to treat deaf patients in the future

Researchers at Indiana University School of Medicine are several steps closer to the day when a profoundly deaf patient's own bone marrow cells could be used to let him or her hear the world.

28 Mar 2005

KCP protein protects kidneys from damage caused by chronic renal disease and injury

University of Michigan scientists have identified a new and unusual protein that reduces, in laboratory mice, kidney damage caused by chronic renal disease and acute toxic injuries.

28 Mar 2005

Vital molecular step in cell migration

A vital molecular step in cell migration, the movement of cells within the body during growth, tissue repair and the body's immune response to invading pathogens, has been demonstrated by researchers in the University of California, San Diego (UCSD) School of Medicine.

28 Mar 2005

Marburg death toll in Angola now up to 122

Carlos Alberto, a spokesman for the Angolan health ministry, says the death toll in the Marburg hemorrhagic fever outbreak in Angola has now risen to 122, just one fewer than in the largest previous outbreak of the disease, in the Democratic Republic of the Congo from 1998 to 200 and killed 123 of 149 people infected.

28 Mar 2005

Genome in gut bacterium key to intestinal health

A bacterium that lives in the human gut adaptively shifts more than a quarter of its genes into high gear when its host's diet changes from sugar to complex carbohydrates.

28 Mar 2005

New therapy for treating cat allergies looks promising

Andrew Saxon, M.D., and a team of researchers at University of California, Los Angeles (UCLA) have found that a molecule designed to block cat allergies can prevent allergic reactions in laboratory mice and was also successful when tested on human cells in a test tube.

28 Mar 2005

Marburg Virus responsible for disease outbreak in Angola

The World Health Organization (WHO) announced yesterday that laboratory tests have shown that the cause of a hemorrhagic fever outbreak in northern Angola is the Marburg virus.

23 Mar 2005

New guidelines mean tailor-made drugs are on the way

Many experts believe a milestone has been reached with the issuing of guidelines for pharmaceutical companies to encourage them to gather and submit information about how genetic variations affect the way people respond to their drugs.

23 Mar 2005

Ultrafast laser detection of cancer cells also may improve understanding of stem cells

To investigate tumors, pathologists currently rely on labor-intensive microscopic examination, using century-old cell-staining methods that can take days to complete and may give false readings.

23 Mar 2005

Fabric treated with an antimicrobial compound can kill dormant anthrax spores

Military textile fabric treated with an antimicrobial compound can kill dormant anthrax spores and could provide the basis for enhancing military protection in the event of a biological attack. Scientists from the U.S. Air Force Research Laboratory (Aberdeen Proving Ground, MD) reported their findings at the 2005 American Society for Microbiology Biodefense Research Meeting.

23 Mar 2005

How does the body keep the number of neutrophils produced constant in the blood?

Every day, the human body manufactures and destroys about 100 billion neutrophils- the most common type of white blood cell and one of the most highly-produced cells. Neutrophils live about eight hours, are bacteria-eaters and are a key component of the immune system. Without them, the body can be subject to life-threatening infection.

23 Mar 2005