Potential neurochemical links between cholesterol and suicidal behavior

被引：39

作者：

Cantarelli, Maria da Graca ^{[1
]}

Tramontina, Ana Carolina ^{[2
]}

Leite, Marina C. ^{[3
]}

Goncalves, Carlos-Alberto ^{[1
,3
]}

机构：

[1] Univ Fed Rio Grande do Sul, Neurosci Postgrad Program, BR-90035003 Porto Alegre, RS, Brazil

[2] State Univ Rio Grande do Sul UERGS, Rio De Janeiro, Brazil

[3] Univ Fed Rio Grande do Sul, Dept Biochem, BR-90035003 Porto Alegre, RS, Brazil

来源：

PSYCHIATRY RESEARCH | 2014年 / 220卷 / 03期

关键词：

Astrocyte; BDNF; Cholesterol; Lipid rafts; Serotonin; Suicidal behavior; S100B protein; LOW SERUM-CHOLESTEROL; CORONARY-HEART-DISEASE; LIPID RAFTS; PRIMARY PREVENTION; MAJOR DEPRESSION; FATTY-ACIDS; ASSOCIATION; MORTALITY; SEROTONIN; METABOLISM;

D O I：

10.1016/j.psychres.2014.10.017

中图分类号：

R749 [精神病学];

学科分类号：

100205 ;

摘要：

The role of cholesterol in psychiatric diseases has aroused the interest of the medical community, particularly in association with violent and suicidal behavior. Herein, we discuss some aspects of brain cholesterol metabolism, exploring possible mechanisms underlying the findings and reviewing the available literature on the possible neurochemical link between suicide and low or reduced levels of serum cholesterol. Most of the current hypotheses suggest a decreased serotonergic activity due to a decrease in cholesterol in the lipid rafts of synaptic membranes. Some aspects and limitations of this assumption are emphasized. In addition to serotonin hypofunction, other mechanisms have been proposed to explain increased impulsivity in suicidal individuals, including steroid modulation and brain-derived neurotrophic factor decrease, which could also be related to changes in lipid rafts. Other putative markers of suicidal behavior (e.g. protein S100B) are discussed in connection with cholesterol metabolism in the brain tissue. (C) 2014 Elsevier Ireland Ltd. All rights reserved.

引用

页码：745 / 751

页数：7

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