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Plasma omega 3 polyunsaturated fatty acid status and monounsaturated fatty acids are altered by chronic social stress and predict endocrine responses to acute stress in titi monkeys.
MedLine Citation:
PMID:  21211954     Owner:  NLM     Status:  In-Data-Review    
Disturbances in fatty acid (FA) metabolism may link chronic psychological stress, endocrine responsiveness, and psychopathology. Therefore, lipid metabolome-wide responses and their relationships with endocrine (cortisol, insulin, and adiponectin) responsiveness to acute stress (AS) were assessed in a primate model of chronic social stress (CS). Compared to controls (not exposed to CS), CS increased (P≤0.05) circulating triacylglycerol (TG) and phosphatidylethanolamine (PE) n-6/n-3 and reduced (P≤0.05) cholesterol ester (CE) 16:1n7 and phosphatidylcholine (PC) 18:1n7, suggesting lower omega-3 FA status and stearoyl-CoA desaturase activity, respectively. Cortisol responses to AS positively correlated with TG n-6/n-3 (r=0.93; P=0.007), but only in CS monkeys. The adiponectin response to AS inversely correlated with CE n-6/n3 (r=-0.89; P=0.045) and positively with TG 16:1n7 (r=0.98; P=0.004), only in CS monkeys. Our results are consistent with previously reported FA profiles in stress-related psychopathology and suggest that compositional changes of specific lipid FAs may form new functional markers of chronic psychological stress.
K D Laugero; J T Smilowitz; J B German; M R Jarcho; S P Mendoza; K L Bales
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Publication Detail:
Type:  Journal Article     Date:  2011-01-05
Journal Detail:
Title:  Prostaglandins, leukotrienes, and essential fatty acids     Volume:  84     ISSN:  1532-2823     ISO Abbreviation:  Prostaglandins Leukot. Essent. Fatty Acids     Publication Date:    2011 Mar-Apr
Date Detail:
Created Date:  2011-01-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8802730     Medline TA:  Prostaglandins Leukot Essent Fatty Acids     Country:  Scotland    
Other Details:
Languages:  eng     Pagination:  71-8     Citation Subset:  IM    
Copyright Information:
Published by Elsevier Ltd.
Obesity and Metabolism Research Unit, Western Human Nutrition Research Center/ARS/USDA, Davis, CA 95616, USA; Department of Nutrition, UC Davis, Davis, CA 95616, USA.
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