Biological differences between melancholic and nonmelancholic depression subtyped by the CORE measure. Spanemberg, L., Caldieraro, M. A., Vares, E. A., Wollenhaupt-Aguiar, B., Kauer-Sant'Anna, M., Kawamoto, S. Y., Galvão, E., Parker, G., & Fleck, M. P Neuropsychiatric disease and treatment, 10:1523--1531, 2014.
Biological differences between melancholic and nonmelancholic depression subtyped by the CORE measure [link]Paper  doi  abstract   bibtex   
BACKGROUND: The purpose of this study was to compare melancholic patients rated by the CORE measure of observable psychomotor disturbance with nonmelancholic and control subjects across a set of biomarkers. METHODS: Depressed patients were classified as melancholic or nonmelancholic by using the CORE measure. Both groups of patients, as well as control subjects, were compared for a set of clinical and laboratory measures. Serum levels of brain-derived neurotrophic factor, of two markers of oxidative stress (protein carbonyl content [PCC] and thiobarbituric acid reactive substances [TBARS]), and of several immunity markers (interleukin [IL]-2, IL-4, IL-6, IL-10, IL-17, tumor necrosis factor-alpha, and interferon-gamma) were analyzed. RESULTS: Thirty-three depressed patients and 54 healthy controls were studied. Depressive patients showed higher IL-4, IL-6, and PCC values than healthy controls. Thirteen (39%) of the depressed patients were assigned as melancholic by the CORE measure. They generated lower interferon-gamma (compared with nonmelancholic depressed patients) and TBARS (compared with both the nonmelancholic subset and controls) and returned higher IL-6 levels than controls. Both depressive groups generated higher PCC scores than controls, with no difference between melancholic and nonmelancholic subsets. CONCLUSION: A sign-based measure to rate melancholia was able to replicate and extend biological findings discriminating melancholic depression. Signs of psychomotor disturbance may be a useful diagnostic measure of melancholia.
@article{spanemberg_biological_2014,
	title = {Biological differences between melancholic and nonmelancholic depression subtyped by the {CORE} measure},
	volume = {10},
	issn = {1176-6328},
	url = {http://dx.doi.org/10.2147/NDT.S66504},
	doi = {10.2147/NDT.S66504},
	abstract = {BACKGROUND: The purpose of this study was to compare melancholic patients rated by the CORE measure of observable psychomotor disturbance with nonmelancholic and control subjects across a set of biomarkers. METHODS: Depressed patients were classified as melancholic or nonmelancholic by using the CORE measure. Both groups of patients, as well as control subjects, were compared for a set of clinical and laboratory measures. Serum levels of brain-derived neurotrophic factor, of two markers of oxidative stress (protein carbonyl content [PCC] and thiobarbituric acid reactive substances [TBARS]), and of several immunity markers (interleukin [IL]-2, IL-4, IL-6, IL-10, IL-17, tumor necrosis factor-alpha, and interferon-gamma) were analyzed. RESULTS: Thirty-three depressed patients and 54 healthy controls were studied. Depressive patients showed higher IL-4, IL-6, and PCC values than healthy controls. Thirteen (39\%) of the depressed patients were assigned as melancholic by the CORE measure. They generated lower interferon-gamma (compared with nonmelancholic depressed patients) and TBARS (compared with both the nonmelancholic subset and controls) and returned higher IL-6 levels than controls. Both depressive groups generated higher PCC scores than controls, with no difference between melancholic and nonmelancholic subsets. CONCLUSION: A sign-based measure to rate melancholia was able to replicate and extend biological findings discriminating melancholic depression. Signs of psychomotor disturbance may be a useful diagnostic measure of melancholia.},
	language = {en},
	journal = {Neuropsychiatric disease and treatment},
	author = {Spanemberg, Lucas and Caldieraro, Marco Antonio and Vares, Edgar Arrua and Wollenhaupt-Aguiar, Bianca and Kauer-Sant'Anna, Márcia and Kawamoto, Sheila Yuri and Galvão, Emily and Parker, Gordon and Fleck, Marcelo P},
	year = {2014},
	pmid = {25187716},
	keywords = {Mental Health/Care: Psychiatry, brain-derived neurotrophic factor, inflammatory cytokines, melancholic depression, oxidative stress},
	pages = {1523--1531}
}

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