Leafy Greens May Cut Heart Attack Harm
Nutrients in Vegetables May Help Protect the Heart From Heart Attack Damage
Nov. 16, 2007 -- Nitrites and nitrates, found in foods including leafy
greens, may cut heart damage in a
That news comes from lab tests in mice.
Some of the mice had their drinking water laced with nitrites or nitrates
for a week. For comparison, other mice got ordinary drinking water.
After a week, the researchers gave the mice an induced heart attack in order
to see how their hearts fared after the heart attack.
The hearts of mice in the nitrite or nitrate groups had less heart attack
damage than the mice that had drunk plain water in the week before the induced
Dietary sources of nitrites and nitrates included cauliflower, spinach,
collard greens, broccoli, meat, and meat products.
The researchers included Nathan Bryan, PhD, of the University of Texas
Houston Health Sciences Center and David Lefer, PhD, of New York's Albert
Einstein School of Medicine.
In a news release, Bryan says the next step for researchers is to study
nitrates and nitrites in people.
Lerner is a participant in a pending patent regarding the use of sodium
nitrate in cardiovascular disease. Bryan serves on the scientific advisory
board of the supplement company TriVita Inc.
Their study appears in this week's online early edition of Proceedings of
the National Academy of Sciences.