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New method allows heart beat triggers to be viewed and better understood

Researchers have developed unique chemical dyes that have made it possible to see what the naked eye has never seen before: action potentials, or voltage changes, of cardiac cells - including those deep inside the heart, which trigger and determine the pace of heartbeats.

25 Apr 2006

New orthostatic hypotension treatment reduces symptoms without causing high blood pressure

A drug traditionally used to treat myasthenia gravis shows potential benefit for reducing symptoms of orthostatic hypotension without raising blood pressure when people lie down, according to results of a double-blind, controlled clinical trial.

19 Apr 2006

Genetic testing helps diagnose Long QT syndrome

Long QT syndrome is an uncommon, and sometimes fatal, heart rhythm disorder that is often present from birth. It gets its name from the peculiar pattern of the electrocardiogram (ECG or EKG) seen in people with the disease. It affects one in every 3,000 people in the United States.

16 Apr 2006

Laughter is the best medicine

There's no doubt that laughter feels good, but is there real neurophysiology behind it and what can you do about it?

3 Apr 2006

Low-dose aspirin lowers potential for clot-forming blood cells - in both men and women

In what is believed to be the first direct comparison of blood cell testing in both sexes of 81 milligrams of acetyl salicylic acid a day, Hopkins researchers found aspirin therapy prevents the clumping together of these clot-forming cells, called platelets.

23 Mar 2006

Psychological wellbeing has biological consequences

An experimental investigation by Carol Ryff and associates (University of Wisconsin), published in the March issue of the journal of Psychotherapy & Psychosomatics, underscores the biological consequences of psychological well-being.

13 Mar 2006

Essential information - how to deal with a serious allergic reaction

Hundreds of Americans die each year from anaphylaxis which is a serious allergic reaction that is rapid in onset and may cause death.

7 Mar 2006

Mechanism of torpor - hibernation-like state

If doctors could put people in hibernation and pull them out at will, scientists think they could minimize damage from strokes, help recipients' bodies accept transplanted organs, perhaps even enable astronauts to travel in suspended animation until reaching distant destinations.

7 Feb 2006

FDA wants asthma drug withdrawn

An FDA advisory panel has advised that an over-the-conter (OTC) asthma drug should be withdrawn.

26 Jan 2006

Breakthrough in lupus research

A major breakthrough in lupus research - one that may fundamentally change thinking on how the disease affects behavior and cognition - was reported in the January 17, 2006 Proceedings of the National Academy of Sciences (PNAS).

25 Jan 2006

GRK2 protein - potential drug target for heart failure

A protein that plays an important regulatory role in heart failure in the heart also exerts powerful effects on the adrenal gland, Jefferson Medical College researchers have found. The protein, GRK2, is a potential drug target for heart failure.

28 Nov 2005

Animal-assisted therapy beneficial

When it comes to health care, "going to the dogs" is a good thing, according to new research reported at the American Heart Association's Scientific Sessions 2005.

16 Nov 2005

Approximately 9% of children with an allergy to tree nuts will outgrow their allergy

...including children who have previously experienced a severe allergic reaction, according to a study in the November 2005 Journal of Allergy & Clinical Immunology (JACI).

7 Nov 2005

GRK5 protein plays important role in hypertension

Researchers at Jefferson Medical College have implicated a protein called GRK5 as having an important role behind essential hypertension, which affects more than 65 million Americans.

5 Oct 2005

Enzyme in the blood that could be a potential marker for heart failure

A team of scientists led by Walter Koch, Ph.D., director of the Center for Translational Medicine in the Department of Medicine in Jefferson Medical College of Thomas Jefferson University in Philadelphia, previously showed that an enzyme called GRK2 or beta-adrenergic kinase (ßARK1) is critically important in heart function.

22 Aug 2005

Study finds spikes in blood pressure, heart rate, adrenaline after 'dipping' snuff

After snuff use, heart rate increased by about 15 beats per minute (25 percent), systolic blood pressure went up by 12 mmHg (10 percent), and measurements of adrenalin in the bloodstream increased by more than 50 percent.

15 Mar 2005

Lack of clear definition for anaphylaxis puts millions at risk

A new report released today in The Journal of Allergy & Clinical Immunology sets the stage to clearly define a life-threatening medical condition that scientists characterized more than a century ago.

8 Mar 2005

Sudden emotional stress can result in severe but reversible heart muscle weakness

Shocking news, such as learning of the unexpected death of a loved one, has been known to cause catastrophic events, such as a heart attack.

10 Feb 2005

Research animals experience severe stress response at slightest contact with researchers

Mice, rabbits, rats, beagles, geese, and other animals all show measurable physiological stress responses to routine laboratory procedures that have been up until now viewed as relatively benign.

28 Dec 2004

Vaccine provides new hope to the millions of people who suffer from food allergies

A team led by a researcher at the Stanford University School of Medicine has developed vaccines that vastly reduce or eliminate dogs' allergic reactions to three major food allergens: peanuts, milk and wheat. The vaccines' benefits lasted at least three months.

14 Nov 2004