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https://www.readbyqxmd.com/read/29679660/effects-of-aerobic-training-resistance-training-or-both-on-brain-derived-neurotrophic-factor-in-adolescents-with-obesity-the-hearty-randomized-controlled-trial
#1
Gary S Goldfield, Glen P Kenny, Denis Prud'Homme, Martin Holcik, Angela S Alberga, Margaret Fahnestock, Jameason D Cameron, Steve Doucette, Stasia Hadjiyannakis, Heather Tulloch, Mark S Tremblay, Jeremy Walsh, Eva Guerin, Katie E Gunnell, Amedeo D'Angiulli, Ronald J Sigal
Brain derived neurotrophic factor (BDNF) is a protein that plays a critical role in modulating cognition in animals and humans. Aerobic exercise often increases BDNF in adults, but effects of this exercise modality and others among adolescents remain uncertain. This study examined the effects of aerobic training, resistance training, and combined training on resting serum BDNF levels in adolescents with overweight and obesity. After a 4-week pre-randomization treatment, 304 post-pubertal, adolescents with overweight or obesity (70% females) aged 14-18 years were randomized to one of four groups for 22 weeks: aerobic training (N = 75), resistance training (N = 78), combined aerobic and resistance training (N = 75), or non-exercising control (N = 76)...
April 18, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29679360/mental-health-of-the-male-adolescent-and-young-man-the-copenhagen-statement
#2
REVIEW
Timothy R Rice, Lesha D Shah, Pilar Trelles, Shih-Ku Lin, Dinne Skjærlund Christensen, Andreas Walther, Leo Sher
BACKGROUND: Male adolescents and young men benefit when their mental health care is specialized to match their unique gendered and developmental needs. Sensitivity to the social circumstances of this population is important; additionally, the emerging ability to tailor care through knowledge gleaned from the intersection of psychiatry, neurology, and endocrinology informs care. DATA SOURCES: This article summarized the views of six experts in the area of the adolescent and young adult male mental health...
April 20, 2018: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/29678771/prenatal-ethanol-induces-an-anxiety-phenotype-and-alters-expression-of-dynorphin-nociceptin-orphanin-fq-genes
#3
Aranza Wille-Bille, Roberto Sebastián Miranda-Morales, Mariangela Pucci, Fabio Bellia, Claudio D'Addario, Ricardo Marcos Pautassi
Animal models have suggested that prenatal ethanol exposure (PEE) alters the κ opioid receptor system. The present study investigated the brain expression of dynorphin and nociceptin/orphanin FQ related genes and assessed anxiety-like behavior in the light-dark box (LDB), shelter-seeking and risk-taking behaviors in the concentric square field (CSF) test, and ethanol-induced locomotion in the open field (OF), in infant or adolescent Wistar rats that were exposed to PEE (0.0 or 2.0 g/kg, intragastrically, gestational days 17-20)...
April 17, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29678754/sex-and-age-dependent-effects-of-orexin-1-receptor-blockade-on-open-field-behavior-and-neuronal-activity
#4
Shannon R Blume, Hannah Nam, Sandra Luz, Debra A Bangasser, Seema Bhatnagar
Adolescence is a sensitive and critical period in brain development where psychiatric disorders such as anxiety, depression and post-traumatic stress disorder are more likely to emerge following a stressful life event. Females are two times more likely to suffer from psychiatric disorders than males. Patients with these disorders show alterations in orexins (also called hypocretins), important neuropeptides that regulate arousal, wakefulness and the hypothalamic-pituitary-adrenal axis activity. Little is known on the role of orexins in mediating arousal behaviors in male and female rats during adolescence or adulthood...
April 17, 2018: Neuroscience
https://www.readbyqxmd.com/read/29678279/the-psychiatric-consequences-of-cannabinoids
#5
Joao P De Aquino, Mohamed Sherif, Rajiv Radhakrishnan, John D Cahill, Mohini Ranganathan, Deepak C D'Souza
With rising rates of cannabis use in the general population and an increasing number of US states legalizing both recreational and medical cannabis use, it is important to be informed about the adverse consequences of cannabinoids. This Commentary provides an overview of the psychiatric effects of plant-based and synthetic cannabinoids, differentiating acute effects from effects associated with persistent use. Cannabinoids produce multiphasic and dose-dependent effects on anxiety, mood, and perception, in addition to impairing cognition and psychomotor function...
April 17, 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29676680/midline-central-fluid-percussion-model-of-traumatic-brain-injury-in-pediatric-and-adolescent-rats
#6
Rachel K Rowe, Jordan L Harrison, Timothy W Ellis, P David Adelson, Jonathan Lifshitz
OBJECTIVE Experimental traumatic brain injury (TBI) models hold significant validity to the human condition, with each model replicating a subset of clinical features and symptoms. TBI is the leading cause of mortality and morbidity in children and teenagers; thus, it is critical to develop preclinical models of these ages to test emerging treatments. Midline fluid percussion injury (FPI) might best represent mild and diffuse clinical brain injury because of the acute behavioral deficits, the late onset of behavioral morbidities, and the absence of gross histopathology...
April 20, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29674994/a-cross-sectional-study-on-cerebral-hemodynamics-after-mild-traumatic-brain-injury-in-a-pediatric-population
#7
Corey M Thibeault, Samuel Thorpe, Michael J O'Brien, Nicolas Canac, Mina Ranjbaran, Ilyas Patanam, Artin Sarraf, James LeVangie, Fabien Scalzo, Seth J Wilk, Ramon Diaz-Arrastia, Robert B Hamilton
The microvasculature is prominently affected by traumatic brain injury (TBI), including mild TBI (concussion). Assessment of cerebral hemodynamics shows promise as biomarkers of TBI, and may help inform development of therapies aimed at promoting neurologic recovery. The objective of this study was to assess the evolution in cerebral hemodynamics observable with transcranial Doppler (TCD) ultrasound in subjects suffering from a concussion at different intervals during recovery. Pediatric subjects between the ages of 14 and 19 years clinically diagnosed with a concussion were observed at different points post-injury...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29674416/altered-white-matter-microstructure-in-the-corpus-callosum-and-its-cerebral-interhemispheric-tracts-in-adolescent-idiopathic-scoliosis-diffusion-tensor-imaging-analysis
#8
C Xue, L Shi, S C N Hui, D Wang, T P Lam, C-B Ip, B K W Ng, J C Y Cheng, W C W Chu
BACKGROUND AND PURPOSE: Neural system was one of the important contributors to the etiopathogenesis of adolescent idiopathic scoliosis; additionally, the morphology of corpus callosum interconnecting both hemispheres of the brain was found to be altered morphologically. Our aim was to evaluate and compare the microstructural changes of the corpus callosum and its interhemispheric white matter fiber tracts interconnecting both cerebral hemispheres in patients with adolescent idiopathic scoliosis and matched controls using diffusion tensor imaging...
April 19, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29672988/evaluation-of-a-public-education-campaign-to-support-parents-to-reduce-adolescent-alcohol-use
#9
Robyn S Johnston, Julia Stafford, Michelle I Jongenelis, Therese Shaw, Hannah Samsa, Eleanor Costello, Gary Kirby
INTRODUCTION AND AIMS: Mass media education campaigns targeting parents may influence parent factors that reduce adolescent drinking; however few such campaigns have been evaluated. DESIGN AND METHODS: The Parents, Young People and Alcohol campaign included two phases of mass media advertising, Cogs and I See, to deliver consistent messages across multiple media channels. The campaign targeted Western Australian parents of 12-17 year olds with messages describing alcohol's effect on the developing brain and adolescent physical and mental health...
April 19, 2018: Drug and Alcohol Review
https://www.readbyqxmd.com/read/29672109/maternal-protein-free-diet-during-lactation-programs-male-wistar-rat-offspring-for-increased-novelty-seeking-locomotor-activity-and-visuospatial-performance
#10
Bruna M Lotufo, Frank Tenório, Penha C Barradas, Paulo L Guedes, Sebastião S Lima, Michael L M Rocha, Vitor Hugo Duarte-Pinheiro, Vanessa S T Rodrigues, Patrícia C Lisboa, Cláudio C Filgueiras, Yael Abreu-Villaça, Alex C Manhães
It is well established that chronic undernutrition has detrimental impacts on brain development and maturation. However, protein malnutrition during the period specifically encompassing the brain growth spurt has not been widely studied, particularly regarding its effects on adolescent and adult offspring behavior. Here, we assessed the effects of a protein-free diet during the 1st 10 postnatal days on the macronutrient content of the milk produced by lactating Wistar rats, on their maternal behavior, and on the offspring's behavior...
April 2018: Behavioral Neuroscience
https://www.readbyqxmd.com/read/29671803/physical-activity-and-cognitive-functioning-of-children-a-systematic-review
#11
REVIEW
Ilona Bidzan-Bluma, Małgorzata Lipowska
Childhood is an important and sensitive period for cognitive development. There is limited published research regarding the relationship between sports and cognitive functions in children. We present studies that demonstrate the influence of physical activity on health, especially a positive correlation between sports and cognitive functions. The keywords “children, cognition, cognitive function, physical activity, and brain” were searched for using PsycInfo, Medline, and Google Scholar, with publication dates ranging from January 2000 to November 2017...
April 19, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29670166/the-salience-of-self-not-social-pain-is-encoded-by-dorsal-anterior-cingulate-and-insula
#12
Irene Perini, Per A Gustafsson, J Paul Hamilton, Robin Kämpe, Maria Zetterqvist, Markus Heilig
The human neural correlates of social rejection have attracted significant research interest, but remain subject to vigorous debate. Specifically, it has been proposed that a matrix of brain regions overlapping with the classical pain matrix, and including the dorsal anterior cingulate cortex (dACC) and the anterior insular cortex (AI) is critical for processing of social rejection. The present study expands on this conceptualization, by showing that these areas are involved in processing of self-relevant social evaluation, irrespective of valence...
April 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29668147/-together-we-are-stronger-management-of-complex-functional-disorders-during-adolescence
#13
Anne-Emmanuelle Ambresin, Alain Deppen, Michaël Hofer, Laurence Dahner, Olivier Roche, Mellie Huguenin Dezot, Daniela Beltrami, Paul Nouvellet, Jean-Baptiste Armengaud
Functional disorder during adolescence is a very complex problem too often limited to a psychological origin. Its pathogenesis remains unclear but it definitively associates individual and environmental factors. Recent data show anatomo-functional evidence of neural networks of the brain that is involved in pain and its psychological representation as well as the representation of pain in the body. We describe a holistic approach to manage functional disorders that include the family and promote adolescent centered care in order to reach a rapid and optimal rehabilitation...
April 18, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29666640/investigating-the-interactive-effects-of-sex-steroid-hormones-and-brain-derived-neurotrophic-factor-during-adolescence-on-hippocampal-nmda-receptor-expression
#14
Cushla R McCarthny, Xin Du, YeeWen Candace Wu, Rachel A Hill
Sex steroid hormones have neuroprotective properties which may be mediated by brain-derived neurotrophic factor (BDNF). This study sought to determine the interactive effects of preadolescent hormone manipulation and BDNF heterozygosity (+/- ) on hippocampal NMDA-R expression. Wild-type and BDNF+/- mice were gonadectomised, and females received either 17 β -estradiol or progesterone treatment, while males received either testosterone or dihydrotestosterone (DHT) treatment. Dorsal (DHP) and ventral hippocampus (VHP) were dissected, and protein expression of GluN1, GluN2A, GluN2B, and PSD-95 was assessed by Western blot analysis...
2018: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29666571/pleiotropic-contribution-of-mecom-and-avpr1a-to-aggression-and-subcortical-brain-volumes
#15
Marjolein M J van Donkelaar, Martine Hoogman, Irene Pappa, Henning Tiemeier, Jan K Buitelaar, Barbara Franke, Janita Bralten
Reactive and proactive subtypes of aggression have been recognized to help parse etiological heterogeneity of this complex phenotype. With a heritability of about 50%, genetic factors play a role in the development of aggressive behavior. Imaging studies implicate brain structures related to social behavior in aggression etiology, most notably the amygdala and striatum. This study aimed to gain more insight into the pathways from genetic risk factors for aggression to aggression phenotypes. To this end, we conducted genome-wide gene-based cross-trait meta-analyses of aggression with the volumes of amygdala, nucleus accumbens and caudate nucleus to identify genes influencing both aggression and aggression-related brain volumes...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29664997/opportunities-for-neurodevelopmental-plasticity-from-infancy-through-early-adulthood
#16
Amanda E Guyer, Koraly Pérez-Edgar, Eveline A Crone
Multiple and rapid changes in brain development occur in infancy and early childhood that undergird behavioral development in core domains. The period of adolescence also carries a second influx of growth and change in the brain to support the unique developmental tasks of adolescence. This special section documents two core conclusions from multiple studies. First, evidence for change in brain-based metrics that underlie cognitive and behavioral functions are not limited to narrow windows in development, but are evident from infancy into early adulthood...
April 17, 2018: Child Development
https://www.readbyqxmd.com/read/29662440/electrophysiological-properties-of-melanin-concentrating-hormone-and-orexin-neurons-in-adolescent-rats
#17
Victoria Linehan, Michiru Hirasawa
Orexin and melanin-concentrating hormone (MCH) neurons have complementary roles in various physiological functions including energy balance and the sleep/wake cycle. in vitro electrophysiological studies investigating these cells typically use post-weaning rodents, corresponding to adolescence. However, it is unclear whether these neurons are functionally mature at this period and whether these studies can be generalized to adult cells. Therefore, we examined the electrophysiological properties of orexin and MCH neurons in brain slices from post-weaning rats and found that MCH neurons undergo an age-dependent reduction in excitability, but not orexin neurons...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29661490/amygdala-volume-mediates-the-relationship-between-externalizing-symptoms-and-daily-smoking-in-adolescence-a-prospective-study
#18
Ali Cheetham, Nicholas B Allen, Sarah Whittle, Julian Simmons, Murat Yücel, Dan I Lubman
The current study examined amygdala and orbitofrontal cortex (OFC) volumes as mediators of the relationship between externalizing symptoms and daily smoking in adolescence. Externalizing behaviors are among the most robust predictors of adolescent smoking, and there is emerging evidence that volume reductions in the amygdala and OFC are associated with risk for substance misuse as well as aggressive, impulsive, and disinhibited tendencies. Using a prospective longitudinal design, we recruited 109 adolescents who provided data on brain volume and externalizing behaviors at age 12, and on smoking at age 18...
March 9, 2018: Psychiatry research. Neuroimaging
https://www.readbyqxmd.com/read/29660967/a-call-for-implementing-preferred-practices-for-brain-injury-screening-in-youth-to-improve-transition
#19
Drew A Nagele, Melissa McCart, Stephen R Hooper
BACKGROUND: It is vital to engage in systematic screening to identify and serve children who may have sustained an acquired brain injury (ABI) - either traumatic or non-traumatic, so they can be successfully transitioned between environments and life stages. This is particularly important for children and adolescents given the impact an ABI can have on learning and social functioning over the course of the neurodevelopmental process. A pattern of repeated, undiagnosed mild brain injuries may lead to mood or behavior disorders, learning problems...
April 7, 2018: NeuroRehabilitation
https://www.readbyqxmd.com/read/29660966/community-based-interventions-for-adolescents-following-traumatic-brain-injury-a-systematic-review
#20
Betony Clasby, Nathan Hughes, Cathy Catroppa, Elle Morrison
BACKGROUND: Chronic impairment following childhood traumatic brain injury has the potential to increase risk of negative outcomes. This highlights potential value of community-based rehabilitation programs. OBJECTIVES: To identify research studies examining existing intervention programmes available in community-based rehabilitation to adolescents following TBI to assist with the transition back into the community. METHODS: A systematic review of community-based interventions was conducted across different national contexts...
April 7, 2018: NeuroRehabilitation
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