Polyunsaturated fatty acids moderate the effect of poor sleep on depression risk

被引:8
作者
Lotrich, Francis E. [1 ]
Sears, Barry [2 ]
McNamara, Robert K. [3 ]
机构
[1] Univ Pittsburgh, Western Psychiat Inst & Clin, Dept Psychiat, Sch Med, Pittsburgh, PA 15213 USA
[2] Inflammat Res Fdn, Marblehead, MA USA
[3] Univ Cincinnati, Coll Med, Dept Psychiat, Cincinnati, OH 45221 USA
来源
PROSTAGLANDINS LEUKOTRIENES AND ESSENTIAL FATTY ACIDS | 2016年 / 106卷
关键词
Polyunsaturated fatty acids; Docosahexaenoic acid; Eicosapentaenoic acid; Arachidonic acid; Interferon-alpha; Sleep quality; INTERFERON-ALPHA; MAJOR DEPRESSION; ARACHIDONIC-ACID; OMEGA-3-FATTY-ACID LEVELS; DOCOSAHEXAENOIC ACID; LIFE EVENTS; SYMPTOMS; RATIO; INFLAMMATION; PREVENTION;
D O I
10.1016/j.plefa.2015.10.004
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Although potentially modifiable risk factors for interferon-alpha (IFN-alpha)-associated depression (IFN-MDD) have been identified, it is not currently known how they interact to confer risk. In the present study we prospectively investigated interactions among poor sleep quality, high-stress, pre-existing depressive symptoms, and polyunsaturated fatty acid status. Non-depressed hepatitis C patients (n=104) were followed prospectively during IFN-alpha therapy. IFN-MDD occurs in 20-40% of patients and was diagnosed using the Structured Clinical Interview of DSM-IV (SCID-IV), with incidence examined using Cox regression. Baseline Pittsburgh Sleep Quality Inventory (PSQI), Perceived Stress Scale (PSS), Beck Depression Inventory (BDI), and a range of plasma long-chain fatty acid levels were measured (gas chromatography) - focusing on the ratio of arachidonic acid (AA) to docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) (AA/EPA+DHA). The AA/EPA+DHA ratio (B=0.40 +/- 0.16; p=0.006), PSQI (B=0.12 0 +/- 0.04; p=0.001), PSS (B=0.07 0 +/- .02; p < 0.001), and baseline BDI (B=0.05 +/- 0.02; p < 0.001) each individually predicted IFN-MDD incidence. In step-wise Cox regression eliminating non-significant variables, two interactions remained significantly predictive: PSQl*AA/EPA+DHA (p=0.008) and PSS*AA/EPA+DHA (p=0.01). Receiver Operator Curves (ROC) were used to examine the specificity and sensitivity of IFN-MDD prediction. When sleep was normal (PSQI < 5), AA/EPA+DHA was strongly predictive of IFN-MDD (AUC = 91 +/- 6; p=0.002). For example, among those with AA/EPA+DHA less than the median (4.15), none with PSQI < 5 developed depression. Conversely, neither PSS nor PSQI was statistically associated with depression risk in those with an elevated AA/EPA+DHA ratio. These data demonstrate that the AA/EPA+DHA ratio moderates the effect of poor sleep on risk for developing IFN-MDD and may have broader implications for predicting and preventing MDD associated with inflammation. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:19 / 25
页数:7
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