{"id":19467,"date":"2017-11-01T12:58:48","date_gmt":"2017-11-01T16:58:48","guid":{"rendered":"https:\/\/news.med.virginia.edu\/medicinematters\/?p=19467"},"modified":"2017-11-06T22:52:58","modified_gmt":"2017-11-07T03:52:58","slug":"exercise-discovery-could-save-lives-of-sickest-most-gravely-injured","status":"publish","type":"post","link":"https:\/\/news.med.virginia.edu\/medicinematters\/?p=19467","title":{"rendered":"Exercise Discovery Could Save Lives of Sickest, Most Gravely Injured"},"content":{"rendered":"
\"Zhen<\/a>

Zhen Yan, PhD
Cardiology<\/p><\/div>\n

From UVA Today<\/a><\/h3>\n

By Josh Barney\u00a0(10\/24\/17) <\/em><\/p>\n

A new discovery about how exercise helps protect us from disease <\/strong>could one day dramatically reduce the death rate among the sickest and most gravely injured.<\/p>\n

People suffering from severe trauma or the full-body infection known as sepsis often develop multiple organ dysfunction syndrome, or MODS. It\u2019s as though the immune system turns against the patient, attacking the vital organs instead of the infection. MODS is a primary cause of death in intensive care units, killing up to 80 percent of patients who develop it. Frustratingly, doctors know little about why it occurs, and nothing can be done to stop it. But the new discovery from the University of Virginia School of Medicine could change that.<\/p>\n

\u201cThis data suggests if everything is true, if this can indeed provide protection against sepsis and multi-organ dysfunction, that would imply that 80 percent of deaths in the clinical ICU could be cut in half,\u201d said UVA researcher\u00a0Zhen Yan, PhD<\/strong>, a faculty member in the Division of Cardiovascular Medicine.<\/p>\n

Exercise for Disease Prevention<\/em><\/p>\n

Yan\u2019s research in mice suggests that skeletal muscles naturally make an antioxidant that helps get rid of excessive free radicals, unstable atoms that can damage cells. The antioxidant, known as EcSOD, is one of the mechanisms by which exercise protects the body from disease, his findings show. \u201cThis data really provides direct evidence that a humoral factor, a factor carried in the blood circulation produced by the largest organ of the body, \u2018knows\u2019 intelligently where to go and really provides protection where there is crisis,\u201d said Yan, of UVA\u2019s Department of Medicine and UVA\u2019s Robert M. Berne Cardiovascular Research Center.<\/p>\n

The antioxidant helps prevent MODS by protecting the first line of defense, the vessel wall, and preventing inflammatory cells from accumulating inside the vital organs. \u201cIn the condition of sepsis and severe trauma, our defense system becomes exaggerated to the point that [the body\u2019s immune defenses] misunderstand the signal, so that they begin to attack the organs,\u201d Yan said. \u201cOur body is mistakenly thinking there is a danger signal coming from the organs themselves.\u201d<\/p>\n

The new insight into the role of this elegant antioxidant that is produced by our body may let doctors rein in the excessive and damaging immune response. \u201cIf we understand the mechanism, we may be able to strategically and intelligently design better pharmacological interventions and genetic interventions,\u201d Yan said.<\/p>\n

\u201cClinically, this has huge implications, indicating the importance of regular exercise in keeping us more resistant to many disease conditions,\u201d he noted. \u201cEven under the condition of serious disease, like sepsis, you have a better chance to survive.\u201d<\/p>\n

Benefits for Patients, Troops<\/em><\/p>\n

Yan, a top expert in the study of the benefits of exercise, said his findings may offer a way to head off MODS and sepsis if those conditions are caught early. It\u2019s unclear if a treatment based on the finding would help those with severe multi-organ dysfunction, he said. But he can foresee another benefit as well: \u201cIt could have tremendous implications for personnel deployed to the battlefield who may get injured,\u201d he said. \u201cIf we train them regularly with the appropriate exercise regimen which will produce more [of the antioxidant] from the muscle, or we can design ways to provide biologically active EcSOD to subjects who are either vulnerable or who have already started to have severe disease conditions, this may lead to a huge impact on their survival.\u201d<\/p>\n

Findings Published<\/em><\/p>\n

The researchers have published their findings online in the scientific journal Free Radical Biology & Medicine<\/em>. The paper, “Muscle-derived extracellular superoxide dismutase inhibits endothelial activation and protects against multiple organ dysfunction syndrome in mice<\/a>,” was authored by Jarrod A. Call, Jean Donet, Kyle S. Martin, Ashish K. Sharma, Xiaobin Chen, Jiuzhi Zhang, Jie Cai, Carolina A. Galarreta, Mitsuharu Okutsu, Zhongmin Du, Vitor A. Lira, Mei Zhang, Borna Mehrad, Brian H. Annex, Alexander L. Klibanov, Russell P. Bowler, Victor E. Laubach, Shayn M. Peirce and Yan.<\/p>\n

The work was supported by the National Institutes of Health, grant R01GM109473, and the American Heart Association.<\/p>\n","protected":false},"excerpt":{"rendered":"

From UVA Today By Josh Barney\u00a0(10\/24\/17) A new discovery about how exercise helps protect us from disease could one day dramatically reduce the death rate among the sickest and most gravely injured. People suffering from severe trauma or the full-body infection known as sepsis often develop multiple organ dysfunction syndrome, or MODS. It\u2019s as though […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[110],"tags":[125,56],"class_list":["post-19467","post","type-post","status-publish","format-standard","hentry","category-research","tag-cardio","tag-research"],"acf":false,"yoast_head":"\nExercise Discovery Could Save Lives of Sickest, Most Gravely Injured - Medicine Matters<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/news.med.virginia.edu\/medicinematters\/?p=19467\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exercise Discovery Could Save Lives of Sickest, Most Gravely Injured - Medicine Matters\" \/>\n<meta property=\"og:description\" content=\"From UVA Today By Josh Barney\u00a0(10\/24\/17) A new discovery about how exercise helps protect us from disease could one day dramatically reduce the death rate among the sickest and most gravely injured. 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