A large population-based investigation into the genetics of susceptibility to gastrointestinal infections and the link between gastrointestinal infections and mental illness

This study also highlights the importance of integrative work in genetics, psychiatry, infection, and epidemiology on the road to translational medicine.
Source: Human Genetics - Category: Genetics & Stem Cells Source Type: research

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Authors: Andrade C Abstract In observational studies, significant associations have often been identified between antidepressant drug prescription during pregnancy, on the one hand, and autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), on the other. Interpreting these associations is problematic because they are based on analyses that could not adjust for inadequately measured, unmeasured, and unknown confounds. Recent clinical data suggest that a genetic relationship exists between depression and neurodevelopmental disorders. A very recent study identified many genetic loci that w...
Source: Journal of Clinical Psychiatry - Category: Psychiatry Tags: J Clin Psychiatry Source Type: research
by Beate Leppert, Louise A. C. Millard, Lucy Riglin, George Davey Smith, Anita Thapar, Kate Tilling, Esther Walton, Evie Stergiakouli Psychiatric disorders are highly heritable and associated with a wide variety of social adversity and physical health problems. Using genetic liability (rather than phenotypic measures of disease) as a proxy for psychiatric disease risk can be a useful alternative for research questions that would traditionally require large cohort studies with long-term follow up. Here we conducted a hypothesis-free phenome-wide association study in about 300,000 participants from the UK Biobank to examine...
Source: PLoS Genetics - Category: Genetics & Stem Cells Authors: Source Type: research
lotie T Abstract BACKGROUND: Severe malocclusions appear in up to 20 per cent of the population. Many neuropsychiatric diseases are likely to have a neurodevelopmental, partially genetic background with their origins as early as fetal life. However, the possible relationship between neurodevelopmental disorders and severe malocclusions is unclear. The aim of this study was in a population-based setting (270 000 inhabitants) to investigate whether patients with severe malocclusions have more mental and behavioural disorders and growth or speech problems than controls without severe malocclusion. MATERIAL AND M...
Source: European Journal of Orthodontics - Category: Dentistry Authors: Tags: Eur J Orthod Source Type: research
Discussion Fragile X syndrome (FXS) was first clinically described in 1943 by Martin-Bell and in 1969 Lubs found a fragility at the terminal end of the X chromosome. In 1991, three different research groups independently cloned the mutation for the FMR1 gene (Fragile X mental retardation type 1) which has a CGG triplet expansion. The FMR1 gene codes for the FMR protein which is a major regulator of synaptic plasticity and is expressed in the brain and spermatogonia mainly but many other tissues during fetal and early neonatal development. The number of triplets and methylation correlates with clinical expression (increased...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
Narcolepsy in childhood-adolescence is characterized by a high occurrence of psychiatric comorbidities. The most frequent psychiatric disorders reported in these patients are attention deficit/hyperactivity disorder, depression, anxiety disorder, and schizophrenia. However, narcolepsy can be associated also with introversion, sorrowfulness, feelings of inferiority, impaired affectivity modulation, emotional lability, irritability, aggressiveness, and poor attention, that have been pooled by some authors under a definition of “narcoleptic personality.” Some aspects of this “narcoleptic personality,” ...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
Abstract All large population-based administrative studies currently indicate a significant comorbidity of adult attention deficit hyperactivity disorder (ADHD) with addictive, anxiety and in particular affective disorders. In these investigations the risk for one of these comorbid disorders increased with increasing age of the ADHD patients. The most recent genome-wide association and correlation studies also revealed indications for joint genetic risk factors of ADHD with, in particular unipolar depression, bipolar disorder, autism spectrum disorders, Tourette's syndrome and to a lesser extent schizophrenia...
Source: Der Nervenarzt - Category: Neurology Authors: Tags: Nervenarzt Source Type: research
Authors: Andrade C Abstract Many observational studies have found an association between antidepressant drug prescription during pregnancy and neurodevelopmental disorders such as autism spectrum disorder, attention-deficit/hyperactivity disorder, and intellectual disability. The results of such studies cannot be considered conclusive because of the possible presence of inadequately measured, unmeasured, and unknown confounds. In this context, maternal anemia before or at but not after 30 weeks of gestation was recently associated with an increased risk of all 3 of these neurodevelopmental disorders. Additionally, ...
Source: Journal of Clinical Psychiatry - Category: Psychiatry Tags: J Clin Psychiatry Source Type: research
Across the landscape of mental health research and diagnosis, there is a diverse range of questionnaires and interviews available for use by clinicians and researchers to determine patient treatment plans or investigate internal and external etiologies. Although individually, these tools have each been assessed for their validity and reliability, there is little research examining the consistency between them in terms of what symptoms they assess, and how they assess those symptoms. Here, we provide an analysis of 126 different questionnaires and interviews commonly used to diagnose and screen for 10 different disorder typ...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
This study investigated whether antenatal exposure to antidepressants (ADs) increases the risks of autism spectrum disorders (ASD), attention deficit/hyperactivity disorders (ADHD), schizophrenia and other mental illnesses, and cognitive and developmental deficits in infants or preschool children. PubMed, EMBASE, BIREME/BVS databases were searched to identify studies examining associations of ADs in pregnancy with neurodevelopmental and psychiatric disorders. Twenty studies addressed ASD and/or ADHD risks while 30 focused on developmental and cognitive deficits in infants or preschool children. Most studies detected no ass...
Source: Cadernos de Saude Publica - Category: International Medicine & Public Health Authors: Tags: Cad Saude Publica Source Type: research
CASE: Thomas is a 13-year-old boy with autism spectrum disorder, attention deficit hyperactivity disorder (ADHD), generalized anxiety disorder, separation anxiety disorder, and major depressive disorder who presented for a follow-up to his developmental and behavioral pediatrician (DBP). His mother describes an increase in symptoms of anxiety and depression for the last 6 weeks, accompanied by suicidal ideation and thoughts of self-mutilation. Before this increase in symptoms, he had been doing well for the last several months with the exception of increasing weight gain, and Abilify was decreased from 5 mg to 2.5 mg at...
Source: Journal of Developmental and Behavioral Pediatrics - Category: Child Development Tags: Challenging Case Source Type: research
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