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Quantitative, High-Resolution T1 Rho MRI Mapping Scan Reveals Brain Differences in Bipolar Disorder

By MedImaging International staff writers
Posted on 28 Jan 2015
Image: Using an MRI technique that is sensitive to certain byproducts of cell metabolism, including levels of glucose and acidity, University of Iowa researchers discovered previously unrecognized differences in the brains of patients with bipolar disorder. The T1rho MRI scans showed brain regions of elevated signal in the 15 participants with bipolar disorder compared to the 25 participants who did not have bipolar disorder. The primary regions of difference are the cerebral white matter (yellow) and the cerebellum (red) (Photo courtesy of the University of Iowa).
Image: Using an MRI technique that is sensitive to certain byproducts of cell metabolism, including levels of glucose and acidity, University of Iowa researchers discovered previously unrecognized differences in the brains of patients with bipolar disorder. The T1rho MRI scans showed brain regions of elevated signal in the 15 participants with bipolar disorder compared to the 25 participants who did not have bipolar disorder. The primary regions of difference are the cerebral white matter (yellow) and the cerebellum (red) (Photo courtesy of the University of Iowa).
Using a different sort of magnetic resonance imaging (MRI) technology, researchers have discovered previously unrecognized differences in the brains of patients with bipolar disorder. In particular, the study revealed differences in the white matter of patients’ brains and in the cerebellum, an area of the brain not previously linked with the disorder.

Interestingly, the cerebellar differences were not present in patients taking lithium, the most typically used treatment for bipolar disorder. “This imaging technique appears to be sensitive to things that just have not been imaged effectively before. So it’s really providing a new picture and new insight into the composition and function of the brain [in bipolar disease],” said John Wemmie, MD, PhD, University of Iowa (UI; Iowa City, USA) professor of psychiatry, and senior study author. The findings were published January 6, 2015, in the journal Molecular Psychiatry.

Bipolar disorder affects about 1% of the population. In spite of being comparatively common, scientists do not have a good determination of what causes this psychiatric condition, which is characterized by sudden mood shifts from normal to depressed or to an abnormally elevated or “manic” mood state. The study examined 15 patients with bipolar disorder and 25 control subjects matched for age and gender. The bipolar patients were all in normal (euthymic) mood state during the study.

The UI researchers imaged the study participants’ brains using an MRI strategy known as quantitative high-resolution T1 rho mapping, which is sensitive to specific byproducts of cell metabolism, including levels of glucose and acidity in the brain. Compared to the brains of people without bipolar disorder, the investigators discovered that the MRI signal was raised in the cerebral white matter and the cerebellar region of patients affected by bipolar disorder. The elevated signal may be due to either a reduction in pH or a reduction in glucose concentration—both factors affected by cell metabolism.

Previous research has suggested that abnormal cell metabolism may play a role in bipolar disorder. However, investigating metabolic abnormalities in the brain has been encumbered by the lack of good imaging strategies. Available techniques are slow, low-resolution, and require researchers to identify the region of interest at the beginning of the study. By contrast, the new imaging approach can rapidly acquire a high-resolution image of the whole brain. The study is the first time this MRI technique has been used to study a psychiatric disease.

One reason researchers did not recognize that the cerebellum might be important in bipolar disorder, is because no one chose to search there, according to Casey Johnson, PhD, a UI postdoctoral researcher, and first author on the study. “Our study was essentially exploratory. We didn’t know what we would find. Most of the bipolar disorder research has found differences in the frontal region of the brain. We found focal differences in the cerebellum, which is a region that hasn't really been highlighted in the bipolar literature before.”

Spurred on by the finding, Drs. Johnson and Wemmie conducted a widespread search of the scientific literature on bipolar disorder and began to locate bits of evidence that suggested that the cerebellum may function abnormally in bipolar disorder and that lithium might potentially target the cerebellum and alter glucose levels in this brain region. “Our paper, with this new technique, starts to bring all these pieces of evidence together for the first time,” Dr. Johnson noted.

Dr. Wemmie hopes that the new clues provided by the T1 rho imaging might help to better understand the abnormalities that underlie bipolar disease and lead to enhanced ways to diagnose and treat this problem. Even though lithium can be an effective mood stabilizer for people with bipolar disorder, it causes many disagreeable side effects for patients.

“If lithium’s effect on the cerebellum is the key to its effectiveness as a mood stabilizer, then a more targeted treatment that causes the same change in the cerebellum without affecting other systems might be a better treatment for patients with bipolar disorder,” Dr. Wemmie said.

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85 (25.033950805664): SELECT show_live FROM jos_com_show_setting LIMIT 1
86 (25.98762512207): SELECT show_live FROM jos_com_show_setting LIMIT 1
87 (58.889389038086): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294756974 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
88 (31.948089599609): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294756974 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (35.04753112793): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`
90 (67.949295043945): SELECT show_live FROM jos_com_show_setting LIMIT 1
91 (41.007995605469): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (36.954879760742): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (36.001205444336): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (41.961669921875): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (28.848648071289): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (30.040740966797): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (38.14697265625): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (63.180923461914): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (30.040740966797): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (30.040740966797): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (39.100646972656): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (122.0703125): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
105 (61.03515625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
106 (83.92333984375): 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=294756974 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=294756974 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (92.029571533203): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
109 (49.114227294922): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
110 (56.982040405273): 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=294756974 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (638.00811767578): 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=294756974 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (770.80726623535): 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 (475.88348388672): 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 (160.93254089355): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
115 (123.02398681641): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
116 (60.081481933594): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
117 (41.007995605469): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
118 (79.870223999023): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
119 (50.067901611328): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
120 (75.101852416992): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
121 (56.028366088867): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
122 (323.05717468262): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
123 (!!!!! 25967.836380005): 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 (674.96299743652): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294756974 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294756974 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 9081.1252593994): ( 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 (97.036361694336): ( 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 (370.02563476562): 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 (77.962875366211): 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 (277.99606323242): 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 (48.87580871582): 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 (207.18574523926): 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 (48.87580871582): 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 (184.05914306641): 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 (50.067901611328): 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 (509.97734069824): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
136 (345.94535827637): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (210.04676818848): SELECT name FROM jos_deeppockets WHERE id=212
138 (43.869018554688): SELECT name FROM jos_deeppockets WHERE id=212
139 (725.98457336426): 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((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
140 (568.86672973633): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (79.870223999023): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
142 (46.014785766602): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
143 (!!!!! 10604.858398438): TRUNCATE TABLE jos_trademed_module
144 (135.18333435059): 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=294756974 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
145 (82.015991210938): 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=294756974 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (!!!!! 1253.1280517578): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
147 (82.969665527344): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (107.0499420166): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
149 (72.002410888672): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
150 (!!!!! 1612.1864318848): 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 (148.05793762207): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
152 (72.956085205078): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
153 (42.915344238281): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294756974 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294756974 AND type='deeppockets_item' AND published='1' LIMIT 1
154 (35.04753112793): 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 (31.948089599609): 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 (51.975250244141): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
157 (183.10546875): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
158 (72.002410888672): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294756974 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294756974 AND published='1' LIMIT 1
159 (137.0906829834): select jos_twitters.link from jos_twitters where cat=10
160 (42.915344238281): select jos_facebook.link from jos_facebook where cat=10
161 (41.007995605469): select jos_google_plus.link from jos_google_plus where cat=10
162 (41.007995605469): select jos_linkedin.link from jos_linkedin where cat=10
163 (419.13986206055): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
164 (!!!!! 1230.001449585): insert into jos_banners_delta values (14615,'2025-06-23 06:36:07','216.73.216.120','view'),(14202,'2025-06-23 06:36:07','216.73.216.120','view'),(14203,'2025-06-23 06:36:07','216.73.216.120','view')