At the American Heart Association's Scientific Sessions 2012, a study showed that genetically engineered tomato plants produced a peptide that mimics the actions of good cholesterol when eaten
In the study, mice that ate the freeze-dried, ground tomatoes had less inflammation and reduced atherosclerosis, plaque build-up in the arteries.
The researchers genetically engineered the tomatoes to produce 6F, a small peptide that mimics the action of ApoA-1, the chief protein in high density lipoprotein (HDL, also called "good" cholesterol). They fed the tomatoes to mice that lack the ability to remove low density lipoprotein (LDL - "bad" cholesterol) from their blood and readily develop inflammation and atherosclerosis when consuming a high-fat diet.
The mice ate the tomatoes as 2.2 percent of their Western-style high-fat, calorie-packed diet and those given the peptide-enhanced tomatoes had significantly:
lower blood levels of inflammation;
higher paraoxonase activity, an anti-oxidant enzyme associated with good cholesterol and related to a lower risk of heart disease;
higher levels of good cholesterol;
decreased lysophosphatidic acid, a tumor promoter that accelerates plaque build-up in arteries in animal models and;
less atherosclerotic plaque.
"We have found a new and practical way to make a peptide that acts like the main protein in good cholesterol, but is many times more effective and can be delivered by eating the plant," said Alan M. Fogelman, M.D., senior author of the study and executive chair of the Department of Medicine and director of the Atherosclerosis Research Unit in the David Geffen School of Medicine at UCLA. "To our knowledge this is the first example of a drug with these properties that has been produced in an edible plant and is biologically active when fed without any isolation or purification of the drug."
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- How Wild Rabbits Genetically Became Tame Ones
- Junk Food Rats Ditch Balanced Diet To Eat Just Like Obese People
- China's R&D Budget Surpasses The Entire EU - But Applied Research Has Plummeted
- Is That A Real Patient Or A Junkie? Now There's An App For That
- Why I Believe We’ll Find Aliens - Seth Shostak
- High Dietary Salt Linked To Multiple Sclerosis Symptoms
- All Living Creatures Need Vitamin Thiamine To Live - Except This One
- "It is a pity that, although a French group is signing the article with a reference to several institutions..."
- "I thought that some humor is necessary here: ..."
- "You either don't understand what co-evolution is or did not read the comment. The commenter wrote..."
- "How does co-evolution equivalent to the naturalistic fallacy? It seems that you are quite prone..."
- "You misunderstand me again, (maybe willingly) and exaggerate again: 1. Misunderstanding: (what..."
- Transvenous lead extraction clinically successful in 98 percent of cases
- First multidisciplinary recommendations on management of arrhythmias in ACS patients
- First expert consensus on ventricular arrhythmias published
- First comprehensive ESC Guidelines on aortic diseases published
- First recommendations on all new oral anticoagulants in pulmonary embolism published