JOURNAL ARTICLE

White matter integrity of the whole brain is disrupted in first-episode remitted geriatric depression

Yonggui Yuan, Zhijun Zhang, Feng Bai, Hui Yu, Yongmei Shi, Yun Qian, Yufeng Zang, Caozhe Zhu, Wen Liu, Jiayong You
Neuroreport 2007 November 19, 18 (17): 1845-9
18090324
Previous studies have demonstrated lower-diffusion anisotropy within white matter in late-onset depression measured by diffusion tensor imaging, which provides information about brain white matter integrity. We have examined whether white matter is abnormal in first-episode remitted geriatric depression by using diffusion tensor imaging. Sixteen remitted geriatric depression patients and 14 well matched healthy controls underwent diffusion tensor-imaging scans of magnetic resonance imaging, which were analyzed by a rigorous voxel-based approach. We found that fractional anisotropy in white matter was lower in patients than in controls at the right superior frontal gyrus, left inferior frontal gyrus, left middle temporal gyrus, right inferior parietal lobule, right middle occipital gyrus, left lingual gyrus, right putamen and right caudate. These results suggested that the white matter integrity of the whole brain was disrupted in first-episode remitted geriatric depression, and that these abnormalities were perhaps involved in the psychopathology and pathophysiology of cognitive impairment in remitted geriatric depression.

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