Abstract:
:Autism spectrum disorder (ASD) comprises a group of neurodevelopmental disorders characterized by social deficits and stereotyped behaviors. While several theories have emerged, the pathogenesis of ASD remains unknown. Although studies report dopamine signaling abnormalities in autistic patients, a coherent dopamine hypothesis which could link neurobiology to behavior in ASD is currently lacking. In this paper, we present such a hypothesis by proposing that autistic behavior arises from dysfunctions in the midbrain dopaminergic system. We hypothesize that a dysfunction of the mesocorticolimbic circuit leads to social deficits, while a dysfunction of the nigrostriatal circuit leads to stereotyped behaviors. Furthermore, we discuss 2 key predictions of our hypothesis, with emphasis on clinical and therapeutic aspects. First, we argue that dopaminergic dysfunctions in the same circuits should associate with autistic-like behavior in nonautistic subjects. Concerning this, we discuss the case of PANDAS (pediatric autoimmune neuropsychiatric disorder associated with streptococcal infections) which displays behaviors similar to those of ASD, presumed to arise from dopaminergic dysfunctions. Second, we argue that providing dopamine modulators to autistic subjects should lead to a behavioral improvement. Regarding this, we present clinical studies of dopamine antagonists which seem to have improving effects on autistic behavior. Furthermore, we explore the means of testing our hypothesis by using neuroreceptor imaging, which could provide comprehensive evidence for dopamine signaling dysfunctions in autistic subjects. Lastly, we discuss the limitations of our hypothesis. Along these lines, we aim to provide a dopaminergic model of ASD which might lead to a better understanding of the ASD pathogenesis.
journal_name
Dev Neuroscijournal_title
Developmental neuroscienceauthors
Pavăl Ddoi
10.1159/000478725subject
Has Abstractpub_date
2017-01-01 00:00:00pages
355-360issue
5eissn
0378-5866issn
1421-9859pii
000478725journal_volume
39pub_type
杂志文章,评审abstract::It has been hypothesized that changes in striatal-mediated dopamine modulation during adolescence may increase the risk for initiating substance abuse as a result of its fundamental role in arbitrating reward sensitivity and motivation during learning and decision making. However, substance abuse during adolescence ma...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000337724
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abstract::Neuronal heterotopia is a malformation of cortical development that is closely associated with epilepsy in humans. Despite emerging interest in the structure and function of the heterotopic cortex, little is known about the membrane properties and synaptic connections of these displaced neurons. We used whole-cell pat...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017386
更新日期:1999-11-01 00:00:00
abstract::Oligodendrocyte precursor cells (OPCs) originate in multiple restricted regions of the developing central nervous system (CNS). Here, we focus on morphological changes of oligodendrocyte lineage cells and their cellular dynamics including cell motility and proliferation. Morphological studies with molecular markers fo...
journal_title:Developmental neuroscience
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doi:10.1159/000048718
更新日期:2001-01-01 00:00:00
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journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017329
更新日期:1998-01-01 00:00:00
abstract::The cell line MN9D, a fusion of embryonic ventral mesencephalic and neuroblastoma cells, is extensively used as a model of dopamine (DA) neurons because it expresses tyrosine hydroxylase and synthesizes and releases DA. These cells are also used to test mechanisms and potential therapeutics relevant to the loss of DA ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000095115
更新日期:2006-01-01 00:00:00
abstract::We have used whole-cell and single-channel recording techniques to investigate the electrophysiological properties of cultured ovine oligodendrocytes (OLGs). Our studies have led to the following conclusions. (1) Cultured mature OLGs express a variety of voltage-dependent K+ conductances including an outward current t...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
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更新日期:1989-01-01 00:00:00
abstract::Cell polarity is one of the most basic properties of all normal cells and loss of polarity is a hallmark of cancer. While multiple proteins have been implicated in the maintenance of cell polarity, the functionally related neoplastic tumor suppressors Lethal giant larvae (Lgl), Scribble and Disks large comprise a uniq...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
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更新日期:2006-01-01 00:00:00
abstract::Birth asphyxia can result in sensory impairment, learning and memory deficits without gross brain injury and severe motor deficits. We developed a model of birth asphyxia resulting in mild neurological injury and cognitive impairment using a long-gestation species with precocial fetal development. Spiny mice (Acomys c...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000251907
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abstract::This study analyzed the role of dopamine D1 and D2 receptors in methylphenidate (MPH) conditioned place preference (CPP) in adolescent male and female rats, in addition to the role of these receptors in the effects of MPH on brain-derived neurotrophic factor (BDNF) in the dorsal striatum and nucleus accumbens. Using a...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000360636
更新日期:2014-01-01 00:00:00
abstract::The long noncoding RNA MSNP1AS (moesin pseudogene 1, antisense) is a functional element that was previously associated with autism spectrum disorder (ASD) with genome-wide significance. Expression of MSNP1AS was increased 12-fold in the cerebral cortex of individuals with ASD and 22-fold in individuals with a genome-w...
journal_title:Developmental neuroscience
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doi:10.1159/000453258
更新日期:2016-01-01 00:00:00
abstract::Ethanol inhibition of L1-mediated cell adhesion may contribute to the spectrum of neurological, behavioral and morphological abnormalities associated with prenatal ethanol exposure. We showed previously that the neuroprotective peptides NAPVSIPQ (NAP) and SALLRSIPA (SAL) antagonize ethanol inhibition of L1 adhesion an...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000084528
更新日期:2005-01-01 00:00:00
abstract::A leading hypothesis of the cause of neuronal death in Huntington's disease (HD) is excitotoxicity, in which subpopulations of striatal neurons are hypersensitive to glutamate release due to changes in postsynaptic N-methyl-D-aspartate receptors (NMDARs). In the present study we used RT-PCR methods on single cells and...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000091921
更新日期:2006-01-01 00:00:00
abstract::The spontaneously immortalized S16 Schwann cell line expresses higher levels of myelin-associated glycoprotein (MAG) and PO glycoprotein and their messenger RNAs when grown at high density than at low density [Sasagasako et al: J Neurochem 1996;66:1432-1439]. This up-regulation of myelin protein expression at high den...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017409
更新日期:1999-01-01 00:00:00
abstract::We have previously shown that lipopolysaccharide (LPS) sensitizes the immature rat brain to subsequent hypoxic-ischemic (HI) injury; however, the underlying mechanisms remain unclear. In this study, we examined the role of glucose in the sensitizing effects of LPS and lipoteichoic acid (LTA) in combination with HI in ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000080713
更新日期:2004-01-01 00:00:00
abstract::Using Western blot and immunocytochemistry to detect protein, and in situ hybridization and Northern blot to detect RNA, we studied the expression of Na,K-ATPase subunit isoforms in cultured astrocytes and oligodendrocytes in vitro, and in glial cells in the brain. We found that astrocytes in culture express alpha 1 a...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111422
更新日期:1996-01-01 00:00:00
abstract::In vertebrate species, the neuropeptide oxytocin (OT) has been implicated in neural and behavioral development. Although several OT-like peptides have been characterized in invertebrate species, the ontogenesis of the OT-like system has not yet been described in these species. Thus, the aim of the present study was to...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000235942
更新日期:2010-03-01 00:00:00
abstract::Apoptosis is a controlled form of cell death that participates in the demise of neuronal cells during development, neurodegenerative disorders and exposure to neurotoxic agents. In recent years, the mitochondria have emerged as being pivotal in controlling apoptosis. They house a number of apoptogenic molecules that a...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000017460
更新日期:2000-09-01 00:00:00
abstract::Metabolism of glutamate and glutamine in cultured mouse cerebral cortical astrocytes has been investigated using either radioactively labelled (14C) amino acids or 13C-labelled amino acids combined with NMR spectroscopy of cell extracts and lyophilyzed incubation media. Using [U-13C]glutamate it has been shown that in...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000111356
更新日期:1993-01-01 00:00:00
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journal_title:Developmental neuroscience
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doi:10.1159/000111215
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abstract::The postnatal development of the complexes of the electron transport chain in mitochondria isolated from rat brain synaptosomes was investigated. Synaptosomal brain mitochondria were isolated from rats aged 10-60 days, and the activities of mitochondrial complex I, complex II-III, complex IV and complex V were measure...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111289
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abstract::Prenatal fever could result in brain function impairments in the offspring. The present study investigated the effect of interleukin-6 (IL-6)-induced maternal fever on the offspring and the involvement of connexin 36 in this process. Pregnant C57BL/6J mice were injected with IL-6 on gestational day 15. The levels of i...
journal_title:Developmental neuroscience
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doi:10.1159/000499735
更新日期:2019-01-01 00:00:00
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journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111863
更新日期:1990-01-01 00:00:00
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journal_title:Developmental neuroscience
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doi:10.1159/000112092
更新日期:1994-01-01 00:00:00
abstract::Myelin-associated oligodendrocytic basic protein (MOBP) and myelin basic protein (MBP) share many structural similarities. MOBP is synthesised by mature oligodendrocytes and localised at the major dense line (MDL), suggesting a role in the myelin compaction process. The shiverer mouse, a deletion mutant of the myelin ...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000017364
更新日期:1999-01-01 00:00:00
abstract::Creatine kinase (CK) isoenzymes, with emphasis on the mitochondrial CK isoenzymes, were characterized and localized in chicken cerebellum. Chicken cerebellum extracts analyzed by two-dimensional gels, using antipeptide antibodies specific for sarcomeric muscle-type mitochondrial CK (Mib-CK) and revealed the presence o...
journal_title:Developmental neuroscience
pub_type: 杂志文章,评审
doi:10.1159/000111452
更新日期:1996-01-01 00:00:00
abstract::In some cells, the development of voltage-gated channels requires synaptic input, while in others it does not. Here we investigate whether the sodium and potassium currents in the skeletal muscle of zebrafish sofa potato (sop(-/-)) mutants develop normally. Zebrafish sop(-/-) mutants do not express nicotinic acetylcho...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000207794
更新日期:2009-01-01 00:00:00
abstract::Oligodendrocytes from the shiverer mutant mouse are missing most of the myelin basic protein (Mbp) gene. In axon-free cultures, they produce membrane sheets with abnormally assembled microtubule and actin-based structures. This suggests that an Mbp gene product may have an important role in regulating the organization...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000111237
更新日期:1997-01-01 00:00:00
abstract::Perinatal hypoxic ischemic (HI) brain injury is a leading cause of long-term neurological handicap in newborn babies. Recently, excessive activity of matrix metalloproteinases (MMPs), and in particular MMP-9, has been implicated in the aetiology of HI injuries to the immature brain. Our previous study suggested that M...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000343257
更新日期:2012-01-01 00:00:00
abstract::The norepinephrine content of hypothalamus in vehicle-treated control rats gradually increases between days 16 and 45 of life. Norepinephrine contents of the hypothalamus and mesencephalon of the thyroxine-treated (10 microgram/g b.w., s.c., days 8-10) animals also increase between days 16 and 21. Mesencephalic and hy...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112377
更新日期:1980-01-01 00:00:00
abstract::Chick embryo retina neurons in culture extend neurites and form synapses. Seven different culture substrates were compared to determine which culture surface would produce the best neuronal survival and neurite extension. The order of survival of retina neurons during 7 days of culture is salt-precipitated collagen gr...
journal_title:Developmental neuroscience
pub_type: 杂志文章
doi:10.1159/000112705
更新日期:1982-01-01 00:00:00