GM Carrots Provide More Calcium
January 18, 2008| |
Genetically modified (GM) carrots developed by researchers in Texas A&M and Baylor College of Medicine were reported to provide more calcium. The group of Jay Harris reported that the GM carrots they developed contain almost twice as much calcium as regular carrots.
Harris and colleagues also demonstrated an alternative means of fortifying vegetables with bioavailable calcium. The improvement of bioavailable calcium in foods may lead to more calcium consumption in the diet. Their feeding studies conducted using mice and humans showed that the biotech carrot can highly increase calcium bioavailability, as much as 41 percent. This higher bioavailabilty was influenced by increasing the expression of a single plant calcium transporter, called sCAX1, leading to an improved plant calcium absorption.
For more information, the press release can be found at http://www.bcm.edu/news/item.cfm?newsID=1044 The abstract of the paper published by the Proceedings of the National Academy of Sciences (USA) is available at http://www.pnas.org/cgi/content/abstract/0709005105v1
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