Hormone found in fat tissue a paradox
<http://www.upi.com/Health_News/2009/03/03/Hormone_found_in_fat_tissue_a_paradox/UPI-45551236056920>http://www.upi.com/Health_News/2009/03/03/Hormone_found_in_fat_tissue_a_paradox/UPI-45551236056920 Published: March 3, 2009 at 12:08 AM CHAMPAIGN, Ill., March 3 (UPI) -- The obese are more apt to suffer from diabetes, heart disease or stroke, but are more likely to survive an attack from those conditions, U.S. researchers say. University of Illinois scientists Gregory Freund and Christina Sherry say the phenomenon is called the obesity paradox. "We know that leptin, a hormone secreted by fat tissue, plays a key role in regulating the immune system. When we exposed mice to hypoxia -- simulating an event, such as a heart attack -- leptin triggered the immune system to increase production of an anti-inflammatory molecule, interleukin-1 receptor antagonist," Freund said in a statement. The researchers then gave non-obese mice leptin injections and they recovered three times faster, Sherry said. In the study, published in Endocrinology, one group of mice was fed a high-fat diet for 12 weeks, while another group was fed a normal diet. The obese mice recovered from acute hypoxia five times faster than the mice fed normal diets. In a second experiment, Freund and Sherry examined macrophages -- immune cells -- that were resident in fat tissue from both groups of mice. In mice fed the high-fat diet, there was a very significant increase in interleukin-1 receptor as compared to mice fed the normal diet. "Our hypothesis is that the macrophages from animals fed the high-fat diet are making more interleukin-1 receptor because they're 'living' in an environment of significantly increased leptin," Sherry said. <*}}}>< <http://www.halfthekingdom.org/on+allposters+today.html>on AllPosters today <*}}}><<*}}}>< <http://astore.amazon.com/halthekin-20>Catholic on Amazon <*}}}>< + <*}}}>< <http://www.holypostage.com/>Holy Postage <*}}}>< <*}}}><<http://www.halfthekingdom.org/>Half the <http://www.halfthekingdom.org/>Kingdom!<*}}}>< + "The fruit of abortion is nuclear war" - Bl. Mother Teresa + <*}}}>< <http://www.halfthekingdom.org/on+allposters+today.html>on AllPosters today <*}}}><<*}}}>< <http://astore.amazon.com/halthekin-20>Catholic on Amazon <*}}}>< + <*}}}>< <http://www.holypostage.com/>Holy Postage <*}}}>< <*}}}><<http://www.halfthekingdom.org/>Half the <http://www.halfthekingdom.org/>Kingdom!<*}}}>< + "The fruit of abortion is nuclear war" - Bl. Mother Teresa + --~--~---------~--~----~------------~-------~--~----~ Please note that I do not send or open attachments sent to this list. You received this message because you are subscribed to the Google Groups "Catholics on Fire" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Catholics-on-Fire May the blessing of Jesus and our Blessed Mother be with you -~----------~----~----~----~------~----~------~--~---
