Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27705, USA.
J Acad Nutr Diet. 2012 Dec;112(12):2022-7. doi: 10.1016/j.jand.2012.08.026.
Studies have shown an association between depression and both antioxidant levels and oxidant stress, but generally have not included intakes of antioxidants and antioxidant-rich fruits and vegetables. This study examined the cross-sectional associations between clinically diagnosed depression and intakes of antioxidants, fruits, and vegetables in a cohort of older adults. Antioxidant, fruit, and vegetable intakes were assessed in 278 elderly participants (144 with depression, 134 without depression) using a Block 1998 food frequency questionnaire that was administered between 1999 and 2007. All participants were aged 60 years or older. Vitamin C, lutein, and beta cryptoxanthin intakes were significantly lower among individuals with depression than in comparison participants (P<0.05). In addition, fruit and vegetable consumption, a primary determinant of antioxidant intake, was lower in individuals with depression. In multivariable models controlling for age, sex, education, vascular comorbidity score, body mass index, total dietary fat, and alcohol; vitamin C, beta cryptoxanthin, fruits, and vegetables remained significant. Antioxidants from dietary supplements were not associated with depression. Antioxidant, fruit, and vegetable intakes were lower in individuals with late-life depression than in comparison participants. These associations may partially explain the elevated risk of cardiovascular disease among older individuals with depression. In addition, these findings point to the importance of antioxidant food sources rather than dietary supplements.
研究表明,抑郁与抗氧化剂水平和氧化应激都有关联,但通常不包括抗氧化剂和富含抗氧化剂的水果和蔬菜的摄入量。本研究在一组老年人队列中,研究了临床诊断的抑郁症与抗氧化剂、水果和蔬菜摄入量之间的横断面关联。在 1999 年至 2007 年期间,使用 Block 1998 食物频率问卷评估了 278 名老年参与者(144 名患有抑郁症,134 名无抑郁症)的抗氧化剂、水果和蔬菜摄入量。所有参与者年龄均在 60 岁或以上。与对照组相比,患有抑郁症的个体的维生素 C、叶黄素和β-隐黄质摄入量明显较低(P<0.05)。此外,患有抑郁症的个体的水果和蔬菜摄入量较低,而水果和蔬菜摄入量是抗氧化剂摄入量的主要决定因素。在多变量模型中,控制年龄、性别、教育程度、血管合并症评分、体重指数、总膳食脂肪和酒精;维生素 C、β-隐黄质、水果和蔬菜仍然显著。膳食补充剂中的抗氧化剂与抑郁症无关。与对照组相比,患有晚年抑郁症的个体的抗氧化剂、水果和蔬菜摄入量较低。这些关联可能部分解释了抑郁的老年个体患心血管疾病风险升高的原因。此外,这些发现指出了抗氧化剂食物来源而不是膳食补充剂的重要性。