Investigating the inflammatory phenotype of major depression: Focus on cytokines and polyunsaturated fatty acids

Typeset version

 

TY  - JOUR
  - Dinan, T,Siggins, L,Scully, P,O'Brien, S,Ross, P,Stanton, C
  - 2009
  - January
  - Journal of Psychiatric Research
  - Investigating the inflammatory phenotype of major depression: Focus on cytokines and polyunsaturated fatty acids
  - Validated
  - ()
  - Depression Inflammation Polyunsaturated fatty acids Cytokines Arachidonic acid Treatment resistance HEALTH-BENEFITS FRONTAL-CORTEX ANTIDEPRESSANTS DEPRIVATION ACTIVATION DISORDER DISEASE DIET
  - 43
  - 471
  - 476
  - There is evidence that increased inflammatory activity contributes to treatment non-response in depression and studies suggest that omega-3 fatty acid supplementation is effective in antidepressant non-responders. We tested the hypotheses that in major depression ( 1) the plasma omega-6:omega-3 fatty acid ratio is greater in antidepressant non-responders than responders and (2) higher omega-6:omega-3 ratios are associated with a pro-inflammatory cytokine profile. Twenty DSM-IV major depressives who had failed a six week course of an SSRI, 14 subjects who responded to a six week course of an SSRI and were currently euthymic and 24 healthy comparison subjects took part in the study. Six millilitres of whole blood was collected in ethylenediaminetetraacetic acid (EDTA) tubes for determination of fatty acids together with IL-6 and TNF-alpha.Arachidonic acid (AA) levels were elevated in both the responders and the non-responders. IL-6 was elevated in a similar manner but differences in TNF-alpha did not reach statistical significance. The eicosapentaenoic acid (EPA):AA ratio in the three groups was as follows: controls 0.08 +/- 0.01; responders 0.08 +/- 001; non-responders 0.04 +/- 0.01. These differences are significant (p < 0.001). AA and IL-6 were highly correlated in both responders and non-responders but not in healthy volunteers. The findings of this study provide further support for the view that major depression is associated with a pro-inflammatory phenotype which at least partially persists when patients become normothymic. (C) 2008 Published by Elsevier Ltd.
  - DOI 10.1016/j.jpsychires.2008.06.003
DA  - 2009/01
ER  - 
@article{V43334891,
   = {Dinan,  T and Siggins,  L and Scully,  P and O'Brien,  S and Ross,  P and Stanton,  C },
   = {2009},
   = {January},
   = {Journal of Psychiatric Research},
   = {Investigating the inflammatory phenotype of major depression: Focus on cytokines and polyunsaturated fatty acids},
   = {Validated},
   = {()},
   = {Depression Inflammation Polyunsaturated fatty acids Cytokines Arachidonic acid Treatment resistance HEALTH-BENEFITS FRONTAL-CORTEX ANTIDEPRESSANTS DEPRIVATION ACTIVATION DISORDER DISEASE DIET},
   = {43},
  pages = {471--476},
   = {{There is evidence that increased inflammatory activity contributes to treatment non-response in depression and studies suggest that omega-3 fatty acid supplementation is effective in antidepressant non-responders. We tested the hypotheses that in major depression ( 1) the plasma omega-6:omega-3 fatty acid ratio is greater in antidepressant non-responders than responders and (2) higher omega-6:omega-3 ratios are associated with a pro-inflammatory cytokine profile. Twenty DSM-IV major depressives who had failed a six week course of an SSRI, 14 subjects who responded to a six week course of an SSRI and were currently euthymic and 24 healthy comparison subjects took part in the study. Six millilitres of whole blood was collected in ethylenediaminetetraacetic acid (EDTA) tubes for determination of fatty acids together with IL-6 and TNF-alpha.Arachidonic acid (AA) levels were elevated in both the responders and the non-responders. IL-6 was elevated in a similar manner but differences in TNF-alpha did not reach statistical significance. The eicosapentaenoic acid (EPA):AA ratio in the three groups was as follows: controls 0.08 +/- 0.01; responders 0.08 +/- 001; non-responders 0.04 +/- 0.01. These differences are significant (p < 0.001). AA and IL-6 were highly correlated in both responders and non-responders but not in healthy volunteers. The findings of this study provide further support for the view that major depression is associated with a pro-inflammatory phenotype which at least partially persists when patients become normothymic. (C) 2008 Published by Elsevier Ltd.}},
   = {DOI 10.1016/j.jpsychires.2008.06.003},
  source = {IRIS}
}
AUTHORSDinan, T,Siggins, L,Scully, P,O'Brien, S,Ross, P,Stanton, C
YEAR2009
MONTHJanuary
JOURNAL_CODEJournal of Psychiatric Research
TITLEInvestigating the inflammatory phenotype of major depression: Focus on cytokines and polyunsaturated fatty acids
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORDDepression Inflammation Polyunsaturated fatty acids Cytokines Arachidonic acid Treatment resistance HEALTH-BENEFITS FRONTAL-CORTEX ANTIDEPRESSANTS DEPRIVATION ACTIVATION DISORDER DISEASE DIET
VOLUME43
ISSUE
START_PAGE471
END_PAGE476
ABSTRACTThere is evidence that increased inflammatory activity contributes to treatment non-response in depression and studies suggest that omega-3 fatty acid supplementation is effective in antidepressant non-responders. We tested the hypotheses that in major depression ( 1) the plasma omega-6:omega-3 fatty acid ratio is greater in antidepressant non-responders than responders and (2) higher omega-6:omega-3 ratios are associated with a pro-inflammatory cytokine profile. Twenty DSM-IV major depressives who had failed a six week course of an SSRI, 14 subjects who responded to a six week course of an SSRI and were currently euthymic and 24 healthy comparison subjects took part in the study. Six millilitres of whole blood was collected in ethylenediaminetetraacetic acid (EDTA) tubes for determination of fatty acids together with IL-6 and TNF-alpha.Arachidonic acid (AA) levels were elevated in both the responders and the non-responders. IL-6 was elevated in a similar manner but differences in TNF-alpha did not reach statistical significance. The eicosapentaenoic acid (EPA):AA ratio in the three groups was as follows: controls 0.08 +/- 0.01; responders 0.08 +/- 001; non-responders 0.04 +/- 0.01. These differences are significant (p < 0.001). AA and IL-6 were highly correlated in both responders and non-responders but not in healthy volunteers. The findings of this study provide further support for the view that major depression is associated with a pro-inflammatory phenotype which at least partially persists when patients become normothymic. (C) 2008 Published by Elsevier Ltd.
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DOI_LINKDOI 10.1016/j.jpsychires.2008.06.003
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