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Virtual Biopsy Using MR Spectroscopy May Allow Earlier Diagnosis of Brain Disorder in Athletes

By MedImaging International staff writers
Posted on 29 Dec 2010
In a study of ex-professional athletes, researchers discovered that a specialized imaging technique called magnetic resonance spectroscopy (MRS) might help diagnose chronic traumatic encephalopathy (CTE), a disorder caused by repetitive head trauma that currently can only be definitively diagnosed at autopsy.

Results of the study were presented in December 2010 at the annual meeting of the Radiological Society of North America (RSNA), held in Chicago, IL, USA. "The devastating effects of brain injuries suffered by pro football players who repeatedly suffered concussions and subconcussive brain trauma during their careers have put the spotlight on CTE,” said Alexander P. Lin, PhD, a principal investigator at the Center for Clinical Spectroscopy at Brigham and Women's Hospital (Boston; MA, USA).

According to the US Centers for Disease Control and Prevention (CDC; Atlanta, GA, USA), an estimated 3.8 million sports- and recreation-related concussions occur in the United States each year. Moreover, subclinical concussions--injuries that cannot be diagnosed as concussions but have similar effects--go frequently unrecognized. Studies have shown that individuals who suffer repetitive brain trauma are more likely to experience ongoing problems, from permanent brain damage to long-term disability.

CTE is a degenerative brain disease caused by repeated brain trauma and marked by an accumulation of abnormal proteins in the brain. CTE has been linked to memory difficulty, impulsive and erratic behavior, depression, and ultimately, dementia. "Cumulative head trauma invokes changes in the brain, which over time can result in a progressive decline in memory and executive functioning in some individuals,” Dr. Lin said. "MRS may provide us with noninvasive, early detection of CTE before further damage occurs, thus allowing for early intervention.”

In Dr. Lin's study, conducted in collaboration with the Boston University Center for the Study of Traumatic Encephalopathy (CSTE), five retired professional male athletes from football, wrestling and boxing with suspected CTE and five age- and size-matched controls between the ages of 32 and 55 were examined with MRS. In MRS, sometimes referred to as "virtual biopsy,” a powerful magnetic field and radiowaves are used to extract information about chemical compounds within the body, using a clinical MR scanner.

The findings revealed that compared with the brains of the control patients, the brains of the former athletes with suspected CTE had increased levels of choline, a cell membrane nutrient that signals the presence of damaged tissue, and glutamate/glutamine, or Glx. MRS also revealed altered levels of gamma-aminobutyric acid (GABA), aspartate, and glutamate in the brains of former athletes. "By helping us identify the neurochemicals that may play a role in CTE, this study has contributed to our understanding of the pathophysiology of the disorder,” Dr. Lin said.

For example, the amino acid and neurotransmitter glutamate is involved in most facets of normal brain function and it must be present in the right places and at the right concentration in order for the brain to be healthy--too much or too little can be harmful.
Results of CSTE neuropathologic studies of retired football players and other athletes have led to considerable changes in the NFL ([US] National Football League), as well as collegiate and youth sports.

Related Links:
Brigham and Women's Hospital
Boston University Center for the Study of Traumatic Encephalopathy

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91 (38.862228393555): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (34.093856811523): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (41.961669921875): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (47.922134399414): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (32.186508178711): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (32.186508178711): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (31.948089599609): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (34.093856811523): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (33.855438232422): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (31.948089599609): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (29.802322387695): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (97.036361694336): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
105 (72.956085205078): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
106 (77.009201049805): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294732718 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (68.902969360352): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294732718 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (220.06034851074): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
109 (123.02398681641): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
110 (489.95018005371): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294732718 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (555.03845214844): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294732718 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (565.0520324707): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
113 (349.99847412109): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
114 (75.101852416992): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
115 (44.822692871094): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
116 (48.160552978516): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
117 (41.007995605469): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
118 (44.107437133789): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
119 (38.862228393555): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
120 (44.107437133789): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
121 (38.862228393555): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
122 (288.00964355469): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
123 (!!!!! 48033.952713013): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7
124 (!!!!! 3550.0526428223): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294732718 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294732718 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 17457.008361816): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
126 (82.969665527344): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
127 (80.108642578125): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
128 (43.153762817383): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
129 (61.03515625): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
130 (42.915344238281): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
131 (479.93659973145): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
132 (54.121017456055): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
133 (47.922134399414): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
134 (40.054321289062): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
135 (546.93222045898): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
136 (329.01763916016): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (214.0998840332): SELECT name FROM jos_deeppockets WHERE id=212
138 (34.093856811523): SELECT name FROM jos_deeppockets WHERE id=212
139 (550.0316619873): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
140 (473.0224609375): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (83.92333984375): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
142 (52.928924560547): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
143 (!!!!! 12034.177780151): TRUNCATE TABLE jos_trademed_module
144 (89.168548583984): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294732718 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
145 (61.03515625): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294732718 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (!!!!! 3561.9735717773): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
147 (92.983245849609): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (70.095062255859): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
149 (51.975250244141): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
150 (!!!!! 1213.0737304688): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6
151 (72.002410888672): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
152 (60.081481933594): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
153 (44.822692871094): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294732718 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294732718 AND type='deeppockets_item' AND published='1' LIMIT 1
154 (33.140182495117): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)
155 (29.087066650391): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)
156 (32.186508178711): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
157 (113.96408081055): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
158 (57.93571472168): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294732718 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294732718 AND published='1' LIMIT 1
159 (54.121017456055): select jos_twitters.link from jos_twitters where cat=10
160 (31.948089599609): select jos_facebook.link from jos_facebook where cat=10
161 (29.087066650391): select jos_google_plus.link from jos_google_plus where cat=10
162 (29.087066650391): select jos_linkedin.link from jos_linkedin where cat=10
163 (290.87066650391): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
164 (!!!!! 1054.048538208): insert into jos_banners_delta values (14615,'2025-06-27 16:16:04','216.73.216.249','view'),(14202,'2025-06-27 16:16:04','216.73.216.249','view'),(14203,'2025-06-27 16:16:04','216.73.216.249','view')