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Garlic may protect the heart after heart surgery
September 09, 2002Raw garlic consumption may help limit the damage done to the heart after surgery because if its natural antioxidant properties, according to a new study published in BMC Pharmacology.
After a heart attack it is important to restore the flow of blood to the heart so that damage to the heart muscle can be minimised. However, the return of blood flow can paradoxically cause further damage, so called “ischemic-reperfusion injury, due to the release of free radicals. Free radicals cause oxidative stress to the heart cells, resulting in reduced cardiac function and irreversible tissue injury. This can be potentially fatal to patients undergoing heart surgery to remove clots or repair heart defects.
Antioxidants, which can “mop up” free radicals before they do any harm, have been shown to reduce the severity of damage to the heart. However, the therapeutic use of antioxidants is limited by their toxicity. In light of several recent studies showing that garlic can limit the depletion of natural heart antioxidants, a research team from India designed a study to investigate whether garlic could protect against oxidative stress in rats.
The team found that regular consumption of raw garlic prevented oxidative stress and the resulting tissue damage. Rats that were given a consistent diet of garlic were found to have much higher levels of antioxidants and lower levels of the chemicals that accompany oxidative stress. The damage to their hearts following ischemic-reperfusion injury was also significantly lower. Further studies in humans are needed, but the authors conclude that garlic has important potential to save the lives of patients undergoing heart surgery.
BioMed Central Limited
Stress Current Events and Stress News RSSSleeping in school
Up to 10% of children starting school suffer from sleep disturbances and these may lead to poor performance or behavioral difficulties.
Why the 'perfect' body isn't always perfect
Having an imperfect body may come with some substantial benefits for some women, according to a new article in the December issue of Current Anthropology.
Plants display 'molecular amnesia'
Plant researchers from McGill University and the University of California, Berkeley, have announced a major breakthrough in a developmental process called epigenetics. They have demonstrated for the first time the reversal of what is called epigenetic silencing in plants.
EEGs show brain differences between poor and rich kids
University of California, Berkeley, researchers have shown for the first time that the brains of low-income children function differently from the brains of high-income kids.
Stress-related disorders affect brain's processing of memory
Researchers using functional MRI (fMRI) have determined that the circuitry in the area of the brain responsible for suppressing memory is dysfunctional in patients suffering from stress-related psychiatric disorders. Results of the study will be presented today at the annual meeting of the Radiological Society of North America (RSNA).
Newborns exposed to maternal smoking more irritable, difficult to soothe
Previous studies have shown that babies exposed to tobacco in utero are more likely to have a low birth weight and are at increased risk for sudden infant death syndrome.
Self-powered devices possible, says Texas A&M researcher
Imagine a self-powering cell phone that never needs to be charged because it converts sound waves produced by the user into the energy it needs to keep running. It's not as far-fetched as it may seem thanks to the recent work of Tahir Cagin, a professor in the Artie McFerrin Department of Chemical Engineering at Texas A&M University.
Selenium may slow march of AIDS
Increasing the production of naturally occurring proteins that contain selenium in human blood cells slows down multiplication of the AIDS virus, according to biochemists.
Lower childhood IQ associated with higher risk of adult mental disorders
Researchers have hypothesized that people with lower IQs may have a higher risk of adult mental disorders, but few studies have looked at the relationship between low childhood IQ and psychiatric disorders later in life.
MRI shows new types of injuries in young gymnasts
Adolescent gymnasts are developing a wide variety of arm, wrist and hand injuries that are beyond the scope of previously described gymnastic-related trauma, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).
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