Abstract:
:Marijuana is the most commonly used drug of abuse among adolescents. Considerable clinical evidence supports the hypothesis that adolescent neurodevelopmental exposure to high levels of the principal psychoactive component in marijuana, -delta-9-tetrahydrocanabinol (THC), is associated with a high risk of developing psychiatric diseases, such as schizophrenia later in life. This marijuana-associated risk is believed to be related to increasing levels of THC found within commonly used marijuana strains. Adolescence is a highly vulnerable period for the development of the brain, where the inhibitory GABAergic system plays a pivotal role in the maturation of regulatory control mechanisms in the central nervous system (CNS). Specifically, adolescent neurodevelopment represents a critical period wherein regulatory connectivity between higher-order cortical regions and sub-cortical emotional processing circuits such as the mesolimbic dopamine (DA) system is established. Emerging preclinical evidence demonstrates that adolescent exposure to THC selectively targets schizophrenia-related molecular and neuropharmacological signaling pathways in both cortical and sub-cortical regions, including the prefrontal cortex (PFC) and mesolimbic DA pathway, comprising the ventral tegmental area (VTA) and nucleus accumbens (NAc). Prefrontal cortical GABAergic hypofunction is a key feature of schizophrenia-like neuropsychopathology. This GABAergic hypofunction may lead to the loss of control of the PFC to regulate proper sub-cortical DA neurotransmission, thereby leading to schizophrenia-like symptoms. This review summarizes preclinical evidence demonstrating that reduced prefrontal cortical GABAergic neurotransmission has a critical role in the sub-cortical DAergic dysregulation and schizophrenia-like behaviors observed following adolescent THC exposure.
journal_name
Front Psychiatryjournal_title
Frontiers in psychiatryauthors
Renard J,Rushlow WJ,Laviolette SRdoi
10.3389/fpsyt.2018.00281subject
Has Abstractpub_date
2018-07-02 00:00:00pages
281issn
1664-0640journal_volume
9pub_type
杂志文章,评审abstract::Baclofen, particularly high-dose baclofen, has recently emerged as a treatment of major interest for alcohol-dependence. However, baclofen has many potentially dangerous side effects, and the maximal dose of baclofen that may be used is a matter of discussion. Here, the author analyses the medical charts of the last 1...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2014.00143
更新日期:2014-10-10 00:00:00
abstract::Objective: The purpose of this study was to investigate the influence of parenting style on children's behavior problems after the Great East Japan Earthquake in 2011. Methods: Participants were children exposed to the 2011 disaster at preschool age (n = 163). Data were collected from August 2012 to March 2013, and fr...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2019.00045
更新日期:2019-02-19 00:00:00
abstract::Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by lack of attention to social cues in the environment, including speech. Hypersensitivity to sensory stimuli, such as loud noises, is also extremely common in youth with ASD. While a link between sensory hypersensitivity and impaired social...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.00343
更新日期:2020-04-24 00:00:00
abstract:Background:Nonsuicidal self-injury (NSSI) is highly prevalent in clinical and non-clinical populations of adolescents. Several studies have supported both the distinction and the strong association between NSSI and suicidal behavior. Although there is a great deal of data on the role of life events in both suicidal beh...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.00370
更新日期:2020-05-06 00:00:00
abstract:Background:Contemporary psychiatric research focuses its attention on the patient's dysfunction of metacognition in relation to the basic cognitive processes of mental activity. The current study investigated dysfunctional metacognition in relation to self-monitoring of memory in patients diagnosed with schizophrenia. ...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.00725
更新日期:2020-07-29 00:00:00
abstract::It has been proposed that compulsive drug seeking reflects an underlying dysregulation in adaptive behavior that favors habitual (automatic and inflexible) over goal-directed (deliberative and highly flexible) action selection. Rodent studies have established that repeated exposure to cocaine or amphetamine facilitate...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2016.00044
更新日期:2016-03-21 00:00:00
abstract::Adenosine-to-inosine (A-to-I) RNA editing is a co-/posttranscriptional modification of double-stranded RNA, catalyzed by the adenosine deaminase acting on RNA (ADAR) family of enzymes, which results in recognition of inosine as guanosine by translational and splicing machinery causing potential recoding events in amin...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2019.00277
更新日期:2019-04-26 00:00:00
abstract::The rapidly increasing number of patients with Alzheimer's disease (AD) worldwide has become a major public concern. Mild cognitive impairment (MCI), characterized with accelerated memory decline than normal aging, is a stage between cognitively unimpaired and dementia. Identification of MCI in the Alzheimer's continu...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章,评审
doi:10.3389/fpsyt.2018.00671
更新日期:2018-12-06 00:00:00
abstract::New models of care aimed at reinforcing the outpatient sector have been introduced in Germany over the last few years. Initially, a subscription-based model ("integrated care") was introduced in 2012 in the Immanuel Klinik Rüdersdorf, wherein patients had to actively subscribe to the integrated care program. This inte...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2017.00196
更新日期:2017-10-05 00:00:00
abstract::Our recent microarray study reported altered mRNA expression of several low density lipoprotein receptor-related proteins (LRP) associated with the first 4 years following diagnosis with schizophrenia. Whilst this finding is novel, apolipoprotein E (APOE), which mediates its activity through LRPs, has been reported by...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2010.00019
更新日期:2010-07-08 00:00:00
abstract:Background/Hypotheses:As risk factors for nonsuicidal self-injury (NSSI), most studies highlight the importance of internalising disorders, while only a few researches show the connection between externalising disorders and NSSI. Although some papers have introduced the idea that increasing prevalence rates of NSSI are...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.00814
更新日期:2020-08-14 00:00:00
abstract::Alcohol use disorder (AUD) is a devastating public health problem in which both genetic and environmental factors play a role. Growing evidence supports that epigenetic regulation is one major mechanism in neuroadaptation that contributes to development of AUD. Meanwhile, epigenetic patterns can be modified by various...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2018.00594
更新日期:2018-11-15 00:00:00
abstract::Background: Insufficient sleep is common in daily life and can lead to cognitive impairment. Sleep disturbance also exists in neuropsychiatric diseases. However, whether and how acute and chronic sleep loss affect brain morphology remain largely unknown. Methods: We used voxel-based morphology method to study the brai...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2018.00266
更新日期:2018-06-27 00:00:00
abstract::Background: Catatonic phenomena such as stupor, mutism, stereotypy, echolalia, echopraxia, affective flattening, psychomotor deficits, and social withdrawal are characteristic symptoms of both schizophrenia and autism spectrum disorders (ASD), suggesting overlapping pathophysiological similarities such as altered glut...
journal_title:Frontiers in psychiatry
pub_type:
doi:10.3389/fpsyt.2019.00224
更新日期:2019-04-12 00:00:00
abstract::Structure and function are closely related in the healthy human brain. In patients with chronic heroin exposure, brain imaging studies have identified long-lasting changes in gray matter (GM) volume. More recently, we showed that acute application of heroin in dependent patients results in hypoperfusion of fronto-temp...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2013.00135
更新日期:2013-10-21 00:00:00
abstract::Introduction: People with psychosis show impairments in cognitive flexibility, a phenomenon that is still poorly understood. In this study, we tested if there were differences in cognitive and metacognitive processes related to rigidity in patients with psychosis. We compared individuals with dichotomous interpersonal...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.594840
更新日期:2020-11-26 00:00:00
abstract::Background: Opiates, cannabis, and stimulants are highly abused and are prevalent disorders. Psychological interventions are crucial given that they help individuals maintain abstinence following a lapse or relapse into substance use. The dual-process theory has posited that while the repeated use of a substance leads...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2018.00376
更新日期:2018-08-15 00:00:00
abstract:Background:Recent meta-analyses reported placebo response rate in antidepressant trials to be stable since the 1970s. These meta-analyses however were limited in considering only linear time trends, assessed trial-level covariates based on single-model hypothesis testing only, and did not adjust for small-study effects...
journal_title:Frontiers in psychiatry
pub_type:
doi:10.3389/fpsyt.2020.00633
更新日期:2020-07-28 00:00:00
abstract::Pathological impulsivity is encountered in a broad range of psychiatric conditions and is thought to be a risk factor for aggression directed against oneself or others. Recently, a strong association was found between impulsivity and obesity which may explain the high prevalence of metabolic disorders in individuals w...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章,评审
doi:10.3389/fpsyt.2017.00020
更新日期:2017-02-13 00:00:00
abstract::Aim: Acute psychosis is not an uncommon presenting feature in immune-mediated encephalitides. Most patients improve if properly diagnosed and treated expediently with immunotherapy. Our study aimed to describe the frequency, clinical spectrum, and long-term outcomes in patients presenting with acute psychosis who have...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2019.00913
更新日期:2019-12-13 00:00:00
abstract:Background:Chronic insomnia is common in patients with arteriosclerotic cerebral small vessel disease (CSVD) and aggravates the cognitive impairment caused by CSVD. Low-dose trazodone is effective in treating insomnia, but it is unclear whether it can also improve cognitive function in CSVD patients. This study was per...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.00620
更新日期:2020-06-30 00:00:00
abstract::Background: The intrinsic motivation behind the "need to complete" is more influential than external incentives. We introduced a novel progress-bar tool to motivate the completion of programs designed to treat stimulant and cannabis use disorders. We further examined the effectiveness of the progress bar's scoring app...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2019.00944
更新日期:2020-01-13 00:00:00
abstract::Objective: We aimed to conduct a comparative analysis of the psychological stress experienced by healthcare workers, frontline workers, and the general public and to assess the factors associated with psychological stress in each of these groups. Methods: We conducted an online survey targeting healthcare workers, fro...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.583971
更新日期:2020-12-01 00:00:00
abstract::This protocol describes a study that will test the effectiveness of a 7-week non-clinical digital coaching intervention to promote self-control. The goal of the coaching is to support and guide people who are willing and motivated to improve their self-control with the help of the smartphone application MindHike. The ...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.575101
更新日期:2020-10-09 00:00:00
abstract::Background: Disrupted sleep is common among nursing home patients with dementia and is associated with increased agitation, depression, and cognitive impairment. Detecting and treating sleep problems in this population are therefore of great importance, albeit challenging. Systematic observation and objective recordin...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.00173
更新日期:2020-03-13 00:00:00
abstract::Globally, 52.9 million children under the age of 5 experience a developmental disability, such as sensory impairment, intellectual disability, and autism spectrum disorders. Of these 95% live in low-and-middle-income countries. Most of these children lack access to care. In light of the growing evidence that caregiver...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2019.00769
更新日期:2019-11-11 00:00:00
abstract::The COVID-19 epidemic has caused increasing public panic and mental health stress. In this study, we explore the prevalence and factors linked to anxiety and depression in hospitalized patients with COVID-19. A total of 144 patients diagnosed with COVID-19 underwent depression and anxiety assessment by using the Hospi...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2020.586355
更新日期:2020-11-20 00:00:00
abstract::Betel quid (BQ) is one of the most commonly consumed psychoactive substances. It has been suggested to be associated with various health issues, especially oral cancer. Evidence also points to possible decreased cognitive functions after long-term BQ chewing, such as attention and inhibition control. The present study...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2017.00139
更新日期:2017-08-03 00:00:00
abstract::Individuals with schizophrenia, particularly those with passivity symptoms, may not feel in control of their actions, believing them to be controlled by external agents. Cognitive operations that contribute to these symptoms may include abnormal processing in agency as well as body representations that deal with body ...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2014.00126
更新日期:2014-09-10 00:00:00
abstract::This study examined parental recognition of bullying victimization and associated factors among evacuated children after the 2011 Fukushima Daiichi Nuclear Power Plant accident, using a 3-year follow-up data (wave 1: January 2012; wave 2: January 2013; wave 3: February 2014). The sample included the caregivers of 2,61...
journal_title:Frontiers in psychiatry
pub_type: 杂志文章
doi:10.3389/fpsyt.2019.00283
更新日期:2019-05-03 00:00:00