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https://www.readbyqxmd.com/read/28342337/nice-guys-homozygocity-for-the-tph2-703g-t-rs4570625-minor-allele-promotes-low-aggressiveness-and-low-anxiety
#1
Kariina Laas, Evelyn Kiive, Jarek Mäestu, Mariliis Vaht, Toomas Veidebaum, Jaanus Harro
BACKGROUND: Tryptophan hydroxylase (TPH) is the rate-limiting enzyme in the synthesis of serotonin. We examined whether the TPH2 polymorphism -703G/T (rs4570625) is associated with aggressiveness and impulsivity, and the prevalence of psychiatric disorders, in a population-representative sample. METHODS: We used self and proxy reports on aggressive behaviour in the younger birth cohort of the longitudinal Estonian Children Personality, Behaviour and Health Study collected at age 25, and earlier collected impulsivity and related data of both ECPBHS cohorts...
March 19, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28338724/sex-differences-in-the-development-of-emotion-circuitry-in-adolescents-at-risk-for-substance-abuse-a-longitudinal-fmri-study
#2
Jillian E Hardee, Lora M Cope, Emily C Munier, Robert C Welsh, Robert A Zucker, Mary M Heitzeg
There is substantial evidence for behavioral sex differences in risk trajectories for alcohol and substance use disorders (SUDs), with internalizing factors such as negative affectivity contributing more to female risk. Because the neural development of emotion circuitry varies between males and females across adolescence, it represents a potential mechanism by which underlying neurobiology contributes to SUD risk. Longitudinal functional magnetic resonance imaging (fMRI) was conducted in males and females (n = 18 each) with a family history of alcohol use disorders starting at ages 8-13yrs...
February 21, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28337952/prenatal-maternal-stress-shapes-children-s-theory-of-mind-the-qf2011-queensland-flood-study
#3
G Simcock, S Kildea, G Elgbeili, D P Laplante, V Cobham, S King
Research shows that stress in pregnancy has powerful and enduring effects on many facets of child development, including increases in behavior problems and neurodevelopmental disorders. Theory of mind is an important aspect of child development that is predictive of successful social functioning and is impaired in children with autism. A number of factors related to individual differences in theory of mind have been identified, but whether theory of mind development is shaped by prenatal events has not yet been examined...
March 24, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28335879/are-social-and-communication-difficulties-a-risk-factor-for-the-development-of-social-anxiety
#4
Hannah Pickard, Fruhling Rijsdijk, Francesca Happé, William Mandy
OBJECTIVE: Social anxiety (SA) is a common condition associated with social and communication (SC) difficulties in typically developing young people, as well as those with autism spectrum disorder (ASD). Whether SC difficulties place children at risk for developing SA is unclear. Using a longitudinal design, the present study aimed to disentangle the relationship between SA symptoms and SC difficulties using a population-based sample of 9,491 children from the Avon Longitudinal Study of Parents and Children (ALSPAC)...
April 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28335457/the-epigenetic-link-between-prenatal-adverse-environments-and-neurodevelopmental-disorders
#5
REVIEW
Marija Kundakovic, Ivana Jaric
Prenatal adverse environments, such as maternal stress, toxicological exposures, and viral infections, can disrupt normal brain development and contribute to neurodevelopmental disorders, including schizophrenia, depression, and autism. Increasing evidence shows that these short- and long-term effects of prenatal exposures on brain structure and function are mediated by epigenetic mechanisms. Animal studies demonstrate that prenatal exposure to stress, toxins, viral mimetics, and drugs induces lasting epigenetic changes in the brain, including genes encoding glucocorticoid receptor (Nr3c1) and brain-derived neurotrophic factor (Bdnf)...
March 18, 2017: Genes
https://www.readbyqxmd.com/read/28330961/reference-values-for-developing-responsive-functional-outcome-measures-across-the-lifespan
#6
Marnee J McKay, Jennifer N Baldwin, Paulo Ferreira, Milena Simic, Natalie Vanicek, Joshua Burns
OBJECTIVE: To generate a reference dataset of commonly performed functional outcome measures in 1,000 children and adults and investigate the influence of demographic, anthropometric, strength, and flexibility characteristics. METHODS: Twelve functional outcome measures were collected from 1,000 healthy individuals aged 3-101 years: 6-minute walk test, 30-second chair stand test, timed stairs test, long jump, vertical jump, choice stepping reaction time, balance (Star Excursion Balance Test, tandem stance eyes open and closed, single-leg stance eyes closed), and dexterity (9-hole peg test, Functional Dexterity Test)...
March 22, 2017: Neurology
https://www.readbyqxmd.com/read/28329332/excessive-daytime-sleepiness-predicts-neurodegeneration-in-idiopathic-rem-sleep-behavior-disorder
#7
Junying Zhou, Jihui Zhang, Siu Ping Lam, Joey Wy Chan, Vincent Mok, Anne Chan, Shirley Xin Li, Yaping Liu, Xiangdong Tang, Wing Ho Yung, Yun Kwok Wing
Study Objectives: To determine the association of excessive daytime sleepiness (EDS) with the conversion of neurodegenerative diseases in patients with idiopathic REM sleep behavior disorder (iRBD). Methods: A total of 179 patients with iRBD (79.1% males, mean age = 66.3 ± 9.8 years) were consecutively recruited. Forty-five patients with Epworth Sleepiness Scale score ≥ 14 were defined as having EDS. Demographic, clinical and polysomnographic data were compared between iRBD patients with and without EDS...
March 16, 2017: Sleep
https://www.readbyqxmd.com/read/28328136/22q11-2q13-duplication-including-sox10-causes-sex-reversal-and-peripheral-demyelinating-neuropathy-central-dysmyelinating-leukodystrophy-waardenburg-syndrome-and-hirschsprung-disease
#8
Nadia Falah, Jennifer E Posey, Willa Thorson, Paul Benke, Mustafa Tekin, Brocha Tarshish, James R Lupski, Tamar Harel
Diagnosis of genetic syndromes may be difficult when specific components of a disorder manifest at a later age. We present a follow up of a previous report [Seeherunvong et al., (2004); AJMGA 127: 149-151], of an individual with 22q duplication and sex-reversal syndrome. The subject's phenotype evolved to include peripheral and central demyelination, Waardenburg syndrome type IV, and Hirschsprung disease (PCWH; MIM 609136). DNA microarray analysis defined the duplication at 22q11.2q13, including SOX10. Sequencing of the coding region of SOX10 did not reveal any mutations...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28326187/a-novel-c-terminal-truncating-nr5a1-mutation-in-dizygotic-twins
#9
Atsushi Hattori, Hiroaki Zukeran, Maki Igarashi, Suzuka Toguchi, Yuji Toubaru, Takanobu Inoue, Yuko Katoh-Fukui, Maki Fukami
Nuclear receptor subfamily 5, group A, member 1 (NR5A1) is a nuclear receptor involved in gonadal and adrenal development. We identified a novel C-terminally truncating NR5A1 mutation, p.Leu423Trpfs*7, in dizygotic twins with 46,XY disorders of sex development. Our results highlight the functional importance of C-terminal region of NR5A1 and indicate that NR5A1 mutations can be associated with intrafamilial phenotypic variations, progressive testicular dysfunction, hypogonadotropic hypogonadism, and borderline adrenal dysfunction...
2017: Human Genome Variation
https://www.readbyqxmd.com/read/28323566/racial-differences-in-the-associations-of-posttraumatic-stress-and-insomnia-with-body-mass-index-among-trauma-exposed-veterans
#10
Aaron A Lee, Jeanne M Gabriele
Posttraumatic stress is associated with increased body mass index (BMI) and rates of obesity. Black adults are at greater risk for obesity, trauma exposure, development of posttraumatic stress disorder, and comorbid sleep problems compared to White adults. Accordingly, Black adults with a history of trauma exposure may be at greater risk for elevated BMI associated with posttraumatic stress and insomnia. Multiple linear regression was used to examine race as a moderator of the relationship between posttraumatic symptoms and insomnia with BMI in a sample of Black and White trauma-exposed Veterans (N = 171), controlling for age and sex...
March 21, 2017: Behavioral Medicine
https://www.readbyqxmd.com/read/28323333/a-longitudinal-study-of-the-mini-mental-state-examination-in-late-nonagenarians-and-its-relationship-with-dementia-mortality-and-education
#11
Johan Skoog, Kristoffer Backman, Mats Ribbe, Hanna Falk, Pia Gudmundsson, Valgeir Thorvaldsson, Anne Borjesson-Hanson, Svante Ostling, Boo Johansson, Ingmar Skoog
OBJECTIVES: To examine level of and change in cognitive status using the Mini-Mental State Examination (MMSE) in relation to dementia, mortality, education, and sex in late nonagenarians. DESIGN: Three-year longitudinal study with examinations at ages 97, 99, and 100. SETTING: Trained psychiatric research nurses examined participants at their place of living. PARTICIPANTS: A representative population-based sample of 97-year-old Swedes (N = 591; 107 men, 484 women) living in Gothenburg, Sweden...
March 21, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28317500/can-i-use-marijuana-safely-an-examination-of-distal-antecedents-marijuana-protective-behavioral-strategies-and-marijuana-outcomes
#12
Adrian J Bravo, Mark A Prince, Matthew R Pearson
OBJECTIVE: Given the high prevalence of marijuana use among college students, it is imperative to determine the factors that may reduce risk of problematic marijuana use and/or the development of cannabis use disorder. We examined marijuana protective behavioral strategies (PBS) as a proximal predictor of marijuana-related outcomes and a mediator of the associations between other known risk/protective factors and marijuana-related outcomes. METHOD: Using data from a sample of 2,129 past-month marijuana users, collected from 11 universities in the United States, we examined marijuana PBS use as a mediator of the effects of sex, age at first use, impulsivity-like traits, and marijuana use motives on marijuana use frequency and marijuana related consequences...
March 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28316771/disconnection-from-others-in-autism-is-more-than-just-a-feeling-whole-brain-neural-synchrony-in-adults-during-implicit-processing-of-emotional-faces
#13
Rocco Mennella, Rachel C Leung, Margot J Taylor, Benjamin T Dunkley
BACKGROUND: Socio-emotional difficulties in autism spectrum disorder (ASD) are thought to reflect impaired functional connectivity within the "social brain". Nonetheless, a whole-brain characterization of the fast responses in functional connectivity during implicit processing of emotional faces in adults with ASD is lacking. METHODS: The present study used magnetoencephalography to investigate early responses in functional connectivity, as measured by interregional phase synchronization, during implicit processing of angry, neutral and happy faces...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28315747/multivariate-analysis-of-airway-obstruction-and-reintubation-after-anterior-cervical-surgery-a-retrospective-cohort-study-of-774-patients
#14
REVIEW
Haoxi Li, Yufeng Huang, Bin Shen, Zhaoyu Ba, Desheng Wu
STUDY DESIGN: A retrospective study. PURPOSE: To explore the risk factors for reintubation after airway obstruction following anterior cervical surgery. STUDY BACKGROUND: Anterior cervical surgery is an effective surgical therapy for cervical spine disorders. As the anterior approach is adopted more frequently, some rare postoperative complications come under the spotlight, among which, airway obstruction is extremely detrimental. However, the risk factors and the pathogenesis of the airway obstruction still remain unknown...
March 16, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28314804/stereological-monitoring-of-mouse-lung-alveolarization-from-the-early-post-natal-period-to-adulthood
#15
Agnieszka Pozarska, José Alberto Rodríguez-Castillo, David Emanuel Surate Solaligue, Aglaia Ntokou, Philipp Rath, Ivana Mižíková, Alicia Madurga, Konstantin Mayer, István Vadász, Susanne Herold, Katrin Ahlbrecht, Werner Seeger, Rory E Morty
Post-natal lung maturation generates a large number of small alveoli, with concomitant thinning of alveolar septal walls, generating a large gas exchange surface area but minimizing the distance traversed by the gases. This demand for a large and thin gas exchange surface area is not met in disorders of lung development, such as bronchopulmonary dysplasia (BPD), histopathologically characterized by fewer, larger alveoli; and thickened alveolar septal walls. Diseases such as BPD are often modeled in the laboratory mouse to better understand disease pathogenesis, or develop new interventional approaches...
March 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28306623/risk-of-epilepsy-in-individuals-with-posttraumatic-stress-disorder-a-nationwide-longitudinal-study
#16
Yu-Hsiung Chen, Han-Ting Wei, Ya-Mei Bai, Ju-Wei Hsu, Kai-Lin Huang, Tung-Ping Su, Cheng-Ta Li, Wei-Chen Lin, Yi-Hui Wu, Tai-Long Pan, Tzeng-Ji Chen, Shih-Jen Tsai, Mu-Hong Chen
OBJECTIVE: Several cross-sectional studies reported a relationship between post-traumatic stress disorder (PTSD) and epilepsy. However, the temporal association between PTSD and epilepsy has rarely been investigated. We hypothesized that the risk of developing epilepsy later in life would be higher in patients with PTSD than in those without PTSD. METHODS: Using the Taiwan National Health Insurance Research Database, 6425 individuals with PTSD and 24,980 age-/sex-matched controls were enrolled between 2002 and 2009 in our study, and followed up to the end of 2011...
March 17, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28303968/sex-differences-in-dna-methylation-of-the-cord-blood-are-related-to-sex-bias-psychiatric-diseases
#17
Mariana Maschietto, Laura Caroline Bastos, Ana Carolina Tahira, Elen Pereira Bastos, Veronica Luiza Vale Euclydes, Alexandra Brentani, Günther Fink, Angelica de Baumont, Aloísio Felipe-Silva, Rossana Pulcineli Vieira Francisco, Gisele Gouveia, Sandra Josefina Ferraz Ellero Grisi, Ana Maria Ulhoa Escobar, Carlos Alberto Moreira-Filho, Guilherme Vanoni Polanczyk, Euripedes Constantino Miguel, Helena Brentani
Sex differences in the prevalence of psychiatric disorders are well documented, with exposure to stress during gestation differentially impacting females and males. We explored sex-specific DNA methylation in the cord blood of 39 females and 32 males born at term and with appropriate weight at birth regarding their potential connection to psychiatric outcomes. Mothers were interviewed to gather information about environmental factors (gestational exposure) that could interfere with the methylation profiles in the newborns...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302071/sex-differences-in-the-molecular-signature-of-the-developing-mouse-hippocampus
#18
Joseph L Bundy, Cynthia Vied, Richard S Nowakowski
BACKGROUND: A variety of neurological disorders, including Alzheimer's disease, Parkinson's disease, major depressive disorder, dyslexia and autism, are differentially prevalent between females and males. To better understand the possible molecular basis for the sex-biased nature of neurological disorders, we used a developmental series of female and male mice at 1, 2, and 4 months of age to assess both mRNA and protein in the hippocampus with RNA-sequencing and mass-spectrometry, respectively...
March 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28301762/sex-differences-in-binge-eating-gonadal-hormone-effects-across-development
#19
Kelly L Klump, Kristen M Culbert, Cheryl L Sisk
Eating disorders are highly sexually differentiated disorders that exhibit a female predominance in risk. Most theories focus on psychosocial explanations to the exclusion of biological/genetic influences. The purpose of this descriptive review is to evaluate evidence from animal and human studies in support of gonadal hormone effects on sex differences in binge eating. Although research is in its nascent stages, findings suggest that increased prenatal testosterone exposure in males appears to protect against binge eating...
March 16, 2017: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/28299627/analysis-of-estrogen-receptor-%C3%AE-gene-methylation-in-autistic-males-in-a-chinese-han-population
#20
Xuelai Wang, Shuang Liang, Yi Sun, Haixin Li, Fumio Endo, Mitsuyoshi Nakao, Noriko Saitoh, Lijie Wu
Autism spectrum disorder (ASD) is a neurodevelopment disorder with abnormalities of social interaction, communication and repetitive behaviors. The higher prevalence of ASD in men implies a potential relationship between sex hormones and ASD etiology. The ESR2 gene encodes estrogen receptor beta (ESR2) and plays an important role during brain development. A relationship between ESR2 and ASD has been suggested by studies on single nucleotide polymorphisms and mRNA and protein expression levels in ASD patients...
March 16, 2017: Metabolic Brain Disease
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