Abstract：
:A large body of evidence suggests a relationship between depression and coronary heart disease (CHD). Angiotensin-Ⅱ (Ang-Ⅱ) and angiotensin-(1-7) [Ang-(1-7)] are considered to exert biological effects in both conditions. Here, we aimed to determine the role of Ang-Ⅱ and Ang-(1-7) in the occurrence of comorbid depression in patients with CHD. Our study included 214 CHD patients and 100 matched healthy controls. Serum Ang-Ⅱ and Ang-(1-7) levels were assessed by ELISA, and the depression symptoms were evaluated by the nine-item Patient Health Questionnaire (PHQ-9). Linear regression and correlation analyses were used to estimate the associations between PHQ-9 scores and Ang-Ⅱ and Ang-(1-7) serum levels. Six single-nucleotide polymorphisms (SNPs) spanning the angiotensin converting enzyme 2 (ACE2) and MAS1 genes were genotyped. The associations between SNPs and depression risk in CHD patients were examined using logistic regression analysis with adjustment for age and gender. Decreased Ang-(1-7) (P < 0.05) and an elevated Ang-Ⅱ/Ang-(1-7) ratio (P < 0.01) were observed in CHD patients with depression compared to CHD patients without depression. PHQ-9 scores were negatively correlated with Ang-(1-7) level (r=-0.44, P < 0.01) and positively correlated with the Ang-Ⅱ/Ang-(1-7) ratio (r = 0.33, P < 0.05). Furthermore, carriers of risk allele T for CHD with depression had significantly higher PHQ-9 scores (P < 0.05), lower Ang-(1-7) level (P < 0.01), and higher Ang-Ⅱ/Ang-(1-7) ratio (P < 0.05) than those CC carriers. Collectively, our results firstly showed that Ang-(1-7) serum level in CHD patients may protect against comorbid depression. Moreover, the imbalance between Ang-Ⅱ and Ang-(1-7) may contribute to depression in CHD patients.
journal_name
Peptidesjournal_title
Peptidesauthors
Han W,Wei Z,Dang R,Guo Y,Zhang H,Geng C,Wang C,Feng Q,Jiang Pdoi
10.1016/j.peptides.2020.170353subject
Has Abstractpub_date
2020-09-01 00:00:00pages
170353eissn
0196-9781issn
1873-5169pii
S0196-9781(20)30102-9journal_volume
131pub_type
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