Abstract:
:Stress and exposure to glucocorticoids (GC) during early life render individuals vulnerable to brain disorders by inducing structural and chemical alterations in specific neural substrates. Here we show that adult rats that had been exposed to in utero GCs (iuGC) display increased preference for opiates and ethanol, and are more responsive to the psychostimulatory actions of morphine. These animals presented prominent changes in the nucleus accumbens (NAcc), a key component of the mesolimbic reward circuitry; specifically, cell numbers and dopamine (DA) levels were significantly reduced, whereas DA receptor 2 (Drd2) mRNA expression levels were markedly upregulated in the NAcc. Interestingly, repeated morphine exposure significantly downregulated Drd2 expression in iuGC-exposed animals, in parallel with increased DNA methylation of the Drd2 gene. Administration of a therapeutic dose of L-dopa reverted the hypodopaminergic state in the NAcc of iuGC animals, normalized Drd2 expression and prevented morphine-induced hypermethylation of the Drd2 promoter. In addition, L-dopa treatment promoted dendritic and synaptic plasticity in the NAcc and, importantly, reversed drug-seeking behavior. These results reveal a new mechanism through which drug-seeking behaviors may emerge and suggest that a brief and simple pharmacological intervention can restrain these behaviors in vulnerable individuals.
journal_name
Mol Psychiatryjournal_title
Molecular psychiatryauthors
Rodrigues AJ,Leão P,Pêgo JM,Cardona D,Carvalho MM,Oliveira M,Costa BM,Carvalho AF,Morgado P,Araújo D,Palha JA,Almeida OF,Sousa Ndoi
10.1038/mp.2011.126subject
Has Abstractpub_date
2012-12-01 00:00:00pages
1295-305issue
12eissn
1359-4184issn
1476-5578pii
mp2011126journal_volume
17pub_type
杂志文章abstract::Psychotic symptoms occur in ~40% of subjects with Alzheimer's disease (AD) and are associated with more rapid cognitive decline and increased functional deficits. They show heritability up to 61% and have been proposed as a marker for a disease subtype suitable for gene mapping efforts. We undertook a combined analysi...
journal_title:Molecular psychiatry
pub_type: 杂志文章,meta分析,多中心研究
doi:10.1038/mp.2011.125
更新日期:2012-12-01 00:00:00
abstract::Epidemiological studies report strong association between mood disorders and tobacco addiction. This high comorbidity requires adequate treatment but the underlying mechanisms are unknown. We demonstrate that nicotine exposure, independent of drug withdrawal effects, increases stress sensitivity, a major risk factor i...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2017.145
更新日期:2018-07-01 00:00:00
abstract::We conducted a 10 centimorgan (cM) linkage genome scan in a set of American extended pedigrees ascertained through probands with panic disorder. Several anxiety disorders segregate in these families. In this article, we describe results for simple phobia from 14 of these families (including 129 subjects of whom 57 are...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4001224
更新日期:2003-01-01 00:00:00
abstract::The evolution of human diets led to preferences toward polyunsaturated fatty acid (PUFA) content with 'Western' diets enriched in ω-6 PUFAs. Mounting evidence points to ω-6 PUFA excess limiting metabolic and cognitive processes that define longevity in humans. When chosen during pregnancy, ω-6 PUFA-enriched 'Western' ...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-019-0580-4
更新日期:2020-01-01 00:00:00
abstract::Psychotropic medications target glycogen synthase kinase 3β (GSK3β), but the functional integration with other factors relevant for drug efficacy is poorly understood. We discovered that the suggested psychiatric risk factor FK506 binding protein 51 (FKBP51) increases phosphorylation of GSK3β at serine 9 (pGSK3β(S9))....
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2015.38
更新日期:2016-02-01 00:00:00
abstract::Dietary intake of methyl donors, such as folic acid and methionine, shows considerable intra-individual variation in human populations. While it is recognized that maternal departures from the optimum of dietary methyl donor intake can increase the risk for mental health issues and neurological disorders in offspring,...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2017.53
更新日期:2018-05-01 00:00:00
abstract::TET3 is a member of the ten-eleven translocation (TET) family of enzymes which oxidize 5-methylcytosine (5mC) into 5-hydroxymethylcytosine (5hmC). Tet3 is highly expressed in the brain, where 5hmC levels are most abundant. In adult mice, we observed that TET3 is present in mature neurons and oligodendrocytes but is ab...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-020-0695-7
更新日期:2020-02-26 00:00:00
abstract::The current study provides a novel in-depth assessment of the extent of antipsychotic drugs transport across the blood-brain barrier (BBB) into various brain regions, as well as across the blood-spinal cord barrier (BSCB) and the blood-cerebrospinal fluid barrier (BCSFB). This is combined with an estimation of cellula...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2015.229
更新日期:2016-11-01 00:00:00
abstract::Post-traumatic stress disorder (PTSD) impacts many veterans and active duty soldiers, but diagnosis can be problematic due to biases in self-disclosure of symptoms, stigma within military populations, and limitations identifying those at risk. Prior studies suggest that PTSD may be a systemic illness, affecting not ju...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-019-0496-z
更新日期:2020-12-01 00:00:00
abstract::Circulating inflammatory mediators can signal neurons through a pathway in which cytokine activation of the cells of the blood-brain barrier causes the induction of the nuclear factor kappa B (NF-kappaB), leading to the transcription of target genes, such as the one encoding cyclooxygenase 2 (COX-2), the enzyme that i...
journal_title:Molecular psychiatry
pub_type: 杂志文章,评审
doi:
更新日期:1999-11-01 00:00:00
abstract::We assessed the ability of lithium to reduce neurodegeneration and to stimulate cell proliferation in a rat model of Huntington's disease in which quinolinic acid (QA) was unilaterally infused into the striatum. LiCl (0.5-3.0 mEq/kg) was injected subcutaneously 24 h before and 1 h after QA infusion. At 7 days after QA...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4001463
更新日期:2004-04-01 00:00:00
abstract::Studying genetic determinants of intermediate phenotypes is a powerful tool to increase our understanding of genotype-phenotype correlations. Metabolic traits pertinent to the central nervous system (CNS) constitute a potentially informative target for genetic studies of intermediate phenotypes as their genetic underp...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2012.183
更新日期:2014-02-01 00:00:00
abstract::Neuregulin and the neuregulin receptor ERBB4 have been genetically and functionally implicated in schizophrenia. In this study, we used the yeast two-hybrid system to identify proteins that interact with ERBB4, to identify genes and pathways that might contribute to schizophrenia susceptibility. We identified the MAGI...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4001991
更新日期:2008-02-01 00:00:00
abstract::After psychological trauma, recurrent intrusive visual memories may be distressing and disruptive. Preventive interventions post trauma are lacking. Here we test a behavioural intervention after real-life trauma derived from cognitive neuroscience. We hypothesized that intrusive memories would be significantly reduced...
journal_title:Molecular psychiatry
pub_type: 杂志文章,随机对照试验
doi:10.1038/mp.2017.23
更新日期:2018-03-01 00:00:00
abstract::Schizophrenia (SCZ) is a highly heritable neuropsychiatric disorder of complex genetic etiology. Previous genome-wide surveys have revealed a greater burden of large, rare copy number variations (CNVs) in SCZ cases and identified multiple rare recurrent CNVs that increase risk of SCZ although with incomplete penetranc...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2014.40
更新日期:2014-07-01 00:00:00
abstract::A 3-day Nobel Conference entitled 'The role of genetics in promoting suicide prevention and the mental health of the population' was held at the Nobel Forum, Karolinska Institute (KI) in Stockholm, Sweden, during 8-10 June 2009. The conference was sponsored by the Nobel Assembly for Physiology or Medicine and organize...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2009.113
更新日期:2010-01-01 00:00:00
abstract::Recent in vivo studies have shown low dopamine D2 receptor and dopamine transporter densities among late onset (type 1) alcoholics. We have now studied 6-[18F]-FDOPA (FDOPA) uptake in 10 type 1 alcoholics and eight matched controls to test the hypothesis that striatal presynaptic dopamine function is lower among alcoh...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4000365
更新日期:1998-03-01 00:00:00
abstract::With the advent of technologies that allow simultaneous genotyping of thousands of single-nucleotide polymorphisms (SNPs) across the genome, the genetic contributions to complex diseases can be explored at an unprecedented detail. This study is among the first to apply the genome-wide association study (GWAS) approach...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/mp.2008.141
更新日期:2010-07-01 00:00:00
abstract::Only in the past decade has a role of heredity in substance abuse been established as a result of extensive twin and family studies. More recently, several candidate genes have been investigated for their possible role in alcoholism and cocaine abuse. Specific genetic factors in opioid substance abuse have not been in...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4000248
更新日期:1997-05-01 00:00:00
abstract::There are well-replicated, independent lines of evidence supporting a role for corticotropin-releasing hormone (CRH) in the pathophysiology of depression. CRH receptor 1 (CRHR1), which we first mapped in the brain in 1994, has been implicated in the treatment of depression and anxiety. We studied the association of CR...
journal_title:Molecular psychiatry
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1038/sj.mp.4001587
更新日期:2004-12-01 00:00:00
abstract::Anxiety disorders are common, complex psychiatric disorders with twin heritabilities of 30-60%. We conducted a genome-wide association study of Lifetime Anxiety Disorder (ncase = 25 453, ncontrol = 58 113) and an additional analysis of Current Anxiety Symptoms (ncase = 19 012, ncontrol = 58 113). The liability scale c...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-019-0559-1
更新日期:2020-12-01 00:00:00
abstract::Several studies have indicated that patients with bipolar disorder (BD) who respond well to lithium prophylaxis constitute a biologically distinct subgroup. Lithium is thought to stabilize mood by acting at the phosphoinositide cycle. We have investigated a polymorphism located in the gene (PLCG1) that codes for a gam...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4000447
更新日期:1998-11-01 00:00:00
abstract::Psychiatric diseases have a strong heritable component known to not be restricted to DNA sequence-based genetic inheritance alone but to also involve epigenetic factors in germ cells. Initial evidence suggested that sperm RNA is causally linked to the transmission of symptoms induced by traumatic experiences. Here, we...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-018-0271-6
更新日期:2020-09-01 00:00:00
abstract::Corticotropin-releasing hormone (CRH) is the principal regulator of the hypothalamic-pituitary-adrenal (HPA) axis and an activator of the sympathoadrenal (SA) and systemic sympathetic (SS) systems. Mental disorders, including major depression and, more recently, Alzheimer's disease have been associated with dysregulat...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4000720
更新日期:2000-03-01 00:00:00
abstract::Association between attention-deficit hyperactivity disorder (ADHD) and the 10-repeat allele of the dopamine transporter gene (DAT1) has been reported in independent clinical samples using a categorical clinical definition of ADHD. The present study adopts a quantitative trait loci (QTL) approach to examine the associ...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4001641
更新日期:2005-07-01 00:00:00
abstract::Although schizophrenia is considered a brain disorder, the role of brain organization for symptomatic improvement remains inadequately defined. We investigated the relationship between baseline brain morphology, resting-state network connectivity and clinical response after 24-weeks of antipsychotic treatment in patie...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-018-0269-0
更新日期:2020-04-01 00:00:00
abstract::Familial and twin studies have suggested that anorexia nervosa (AN) is a multifactorial disorder with a substantial genetic contribution. The hSKCa3 potassium channel gene, which contains polymorphic CAG repeats in the coding region and is involved in the regulation of neuronal activity, may be a candidate gene for AN...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4000931
更新日期:2002-01-01 00:00:00
abstract::A recent study found, in a large sample of Ashkenazi Jews, a highly significant association between schizophrenia and a particular haplotype of three polymorphic sites in the catechol-O-methyl transferase, COMT, gene: an IVS 1 SNP (dbSNP rs737865), the exon 4 functional SNP (Val158Met, dbSNP rs165688), and a downstrea...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/sj.mp.4001496
更新日期:2004-09-01 00:00:00
abstract::Several epidemiological studies confirmed that Anxiety Disorders as a group are the most prevalent psychiatric conditions in the United States. The importance of these conditions is underlined by the fact that they cause significant disability, poor quality of life, alcohol and drug abuse. Anxiety disorders are treata...
journal_title:Molecular psychiatry
pub_type: 杂志文章,评审
doi:10.1038/sj.mp.4001852
更新日期:2006-09-01 00:00:00
abstract::Significant heterogeneity across aetiologies, neurobiology and clinical phenotypes have been observed in individuals with autism spectrum disorder (ASD). Neuroimaging-based neuroanatomical studies of ASD have often reported inconsistent findings which may, in part, be attributable to an insufficient understanding of t...
journal_title:Molecular psychiatry
pub_type: 杂志文章
doi:10.1038/s41380-019-0420-6
更新日期:2020-03-01 00:00:00