{"id":13998,"date":"2023-12-07T09:23:13","date_gmt":"2023-12-07T14:23:13","guid":{"rendered":"https:\/\/med.virginia.edu\/radiology\/?p=13998"},"modified":"2024-10-23T13:12:49","modified_gmt":"2024-10-23T17:12:49","slug":"james-r-stone-repeated-blast-exposures-discovery","status":"publish","type":"post","link":"https:\/\/med.virginia.edu\/radiology\/2023\/12\/07\/james-r-stone-repeated-blast-exposures-discovery\/","title":{"rendered":"James R. Stone, MD, PhD, and Collaborators Discover Repeated Blast Exposures May Harm the Brain Health of Military Personnel"},"content":{"rendered":"<div id=\"attachment_13999\" style=\"width: 310px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-13999\" class=\"size-medium wp-image-13999\" src=\"https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020-300x227.jpg\" alt=\"Dr. James Stone in a Research Lab\" width=\"300\" height=\"227\" srcset=\"https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020-300x227.jpg 300w, https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020-1024x774.jpg 1024w, https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020-768x580.jpg 768w, https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020-1536x1161.jpg 1536w, https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020-265x200.jpg 265w, https:\/\/med.virginia.edu\/radiology\/wp-content\/uploads\/sites\/191\/2023\/12\/JamesStone_11122020.jpg 1600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-13999\" class=\"wp-caption-text\">James R. Stone, MD, PhD<\/p><\/div>\n<p>The brains of special warfare community personnel repeatedly exposed to blasts show increased inflammation and structural changes compared with a control group, potentially increasing the risk of long-term, brain-related disease, according to a new study led by Department of Radiology and Medical Imaging Professor <a href=\"http:\/\/uvahealth.com\/findadoctor\/profile\/James-R-Stone\">James R. Stone, MD, PhD.<\/a><\/p>\n<p>Stone led researchers from the University of Virginia School of Medicine and Naval Medical Research Command (NMRC) in the study, which compared the brains of nine special operations personnel exposed to blasts with a control group of nine military service members with only minimal exposures to blasts. Participants\u2019 brains were analyzed using sophisticated imaging techniques, combined with surveys that measured exposure to weapons and explosives as well as symptoms related to brain injury, including mood and sleep issues.<\/p>\n<p>The study found that increased blast exposure was associated with increased brain inflammation, and reduced volume and thickness of brain structures. This could affect several key brain functions, including memory, motor skills and regulating emotions.<\/p>\n<p>Previous studies have shown that people with many neurodegenerative conditions \u2013 including Alzheimer\u2019s disease, Parkinson\u2019s disease and amyotrophic lateral sclerosis (ALS) \u2013 all have chronic brain inflammation that may be detectable before the conditions fully develop.<\/p>\n<p>\u201cThis is the first study to directly demonstrate increased inflammation in the brains of service members who are exposed to small blasts over a career,\u201d said Stone. \u201cBrain inflammation is such a key process in other brain-related illnesses. These findings raise concerns about the long-term brain health of those exposed to repeated low-level blasts.\u201d<\/p>\n<h2 class=\"wp-block-heading\">Better Protecting Military Personnel<\/h2>\n<p>The next step for researchers is a larger study with more participants to determine precisely what levels of blast exposure cause brain injuries. This next study could guide military leaders in how they deploy soldiers as well as improve the design of equipment to protect against brain injuries caused by repeated blasts.<\/p>\n<p>\u201cWork is currently underway to better understand these findings and to be able to answer the question of \u2018how much is too much?\u2019 when it comes to blast overpressure exposure,\u201d Stone said.<\/p>\n<p>The study is one of several projects involving UVA Health researchers seeking to prevent brain injuries in military personnel led by Stephen Ahlers, PhD, from NMRC. UVA is part of a research team backed by an $8 million U.S. Department of Defense grant exploring the role of brain inflammation in military personnel exposed to blast shock waves.<\/p>\n<p>\u201cThis research effort will enable us to understand how repetitive exposure to blast over a career is a risk factor for brain health issues, including the possibility of worsening symptoms from a traumatic brain injury unrelated to blast exposure,\u201d according to Ahlers.<\/p>\n<p>UVA researchers are also part of a group\u00a0<a href=\"https:\/\/newsroom.uvahealth.com\/2020\/09\/29\/uva-modeling-effects-artillery-blasts-military\/\">developing a model<\/a>\u00a0to predict how\u00a0regular exposure to artillery blasts affects the brains of military personnel.<\/p>\n<h2 class=\"wp-block-heading\">Findings Published<\/h2>\n<p>The researchers published their findings in the\u00a0<a href=\"https:\/\/www.liebertpub.com\/doi\/10.1089\/NEU.2023.0309\">Journal of Neurotrauma<\/a>. The research team consisted of\u00a0Brian B. Avants,\u00a0Nicholas Tustison,\u00a0Jessica Gill,\u00a0Elisabeth A. Wilde,\u00a0Kiel D. Neumann,\u00a0Leslie A. Gladney,\u00a0Madison O. Kilgore,\u00a0F. Bowling,\u00a0Christopher M. Wilson,\u00a0John F. Detro,\u00a0Heather Belanger,\u00a0Katryna Deary,\u00a0Hans Linsenbardt,\u00a0Ahlers and Stone.<\/p>\n<p>This work was supported and funded by the Department of Defense Military Operational Medicine Research Program.<\/p>\n<p><em>Adapted from the original article at the <a href=\"https:\/\/newsroom.uvahealth.com\/2023\/12\/06\/repeated-blast-exposures-may-harm-brain-health-military-personnel\/\">UVA Health Newsroom<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The brains of special warfare community personnel repeatedly exposed to blasts show increased inflammation and structural changes compared with a control group, potentially increasing the risk of long-term, brain-related disease, according to a new study led by Department of Radiology and Medical Imaging Professor James R. Stone, MD, PhD. Stone led researchers from the University [&hellip;]<\/p>\n","protected":false},"author":1969,"featured_media":13999,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[60,1,7,80],"tags":[],"class_list":["post-13998","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faculty-highlights","category-news","category-uva-radiology-medical-imaging-research","category-veterans"],"acf":false,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>James R. 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