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New way to examine major depressive disorder in children

Date:
May 10, 2011
Source:
Wayne State University
Summary:
A landmark study has revealed a new way to distinguish children with major depressive disorder from not only normal children, but also from children with obsessive compulsive disorder.

A landmark study by scientists at Wayne State University published in the May 6, 2011, issue of Archives of General Psychiatry, has revealed a new way to distinguish children with major depressive disorder (MDD) from not only normal children, but also from children with obsessive compulsive disorder (OCD).

MDD is a common, debilitating disease prevalent in childhood and adolescence. Examination of cortical thickness in patients with MDD has not been widely studied, and WSU's team of researchers set out to determine if differences in cortical thickness might not only distinguish children with depression from healthy children who are not depressed but also from those with other psychiatric disorders such as OCD.

Using a new technique to measure cortical thickness of 24 MDD patients, 24 OCD patients and 30 healthy control patients, the research team led by David Rosenberg, M.D., the Miriam L. Hamburger Endowed Chair of Child Psychiatry and professor of psychiatry and behavioral neurosciences in the School of Medicine at Wayne State University, and Erin Fallucca, M.D., a psychiatry resident at Wayne State University and the Detroit Medical Center, observed cortical thinning in five regions of the brain and greater thickness in the bilateral temporal pole in MDD patients. In OCD patients, the only significantly different region from healthy control patients was a thinner left supramarginal gyrus.

"The findings from our study are very exciting," said Rosenberg. "By measuring cortical thickness, we were able to distinguish depressed children not only from healthy children without depression, but also from those with another psychiatric disorder, obsessive compulsive disorder."

The study also revealed that familial depressed patients, or children with at least one first-degree relative with depression, had distinct cortical thickness compared to children with no obvious family history of mood disorder.

"Depressed children with and without a family history of depression who met the same clinical criteria of depression and who appeared the same clinically, had completely different cortical thickness based on their family history of depression," said Rosenberg.

This study offers an exciting new way to identify more objective markers of psychiatric illness in children. "It may have potential treatment significance for one-third of depressed children who do not respond to any treatment, and also for many who only partially respond with continued functional impairment," said Rosenberg. "We have found a clue to guide us to look at subtypes of depression just as we would in other chronic medical illnesses like diabetes, such as insulin dependent and non-insulin dependent diabetes."

This study was supported in part by the Paul Strauss Endowment for the Integration of Computer Science and Psychiatry, the National Institute of Mental Health of the National Institutes of Health, the State of Michigan Joe F. Young Sr. Psychiatric Research and Training Program, the World Heritage Foundation, the Schutt Foundation, the United Way, the National Alliance for Research on Schizophrenia and Depression and the Mental Illness Research Association.


Story Source:

The above story is based on materials provided by Wayne State University. Note: Materials may be edited for content and length.


Journal Reference:

  1. E. Fallucca, F. P. MacMaster, J. Haddad, P. Easter, R. Dick, G. May, J. A. Stanley, C. Rix, D. R. Rosenberg. Distinguishing Between Major Depressive Disorder and Obsessive-Compulsive Disorder in Children by Measuring Regional Cortical Thickness. Archives of General Psychiatry, 2011; 68 (5): 527 DOI: 10.1001/archgenpsychiatry.2011.36

Cite This Page:

Wayne State University. "New way to examine major depressive disorder in children." ScienceDaily. ScienceDaily, 10 May 2011. <www.sciencedaily.com/releases/2011/05/110510121401.htm>.
Wayne State University. (2011, May 10). New way to examine major depressive disorder in children. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2011/05/110510121401.htm
Wayne State University. "New way to examine major depressive disorder in children." ScienceDaily. www.sciencedaily.com/releases/2011/05/110510121401.htm (accessed October 20, 2014).

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