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https://www.readbyqxmd.com/read/28092022/relevance-of-neuroimaging-for-neurocognitive-and-behavioral-outcome-after-pediatric-traumatic-brain-injury
#1
Marsh Königs, Petra Jw Pouwels, L W Ernest van Heurn, Roel Bakx, R Jeroen Vermeulen, J Carel Goslings, Bwee Tien Poll-The, Marleen van der Wees, Coriene E Catsman-Berrevoets, Jaap Oosterlaan
This study aims to (1) investigate the neuropathology of mild to severe pediatric TBI and (2) elucidate the predictive value of conventional and innovative neuroimaging for functional outcome. Children aged 8-14 years with trauma control (TC) injury (n = 27) were compared to children with mild TBI and risk factors for complicated TBI (mild(RF+), n = 20) or moderate/severe TBI (n = 17) at 2.8 years post-injury. Neuroimaging measures included: acute computed tomography (CT), volumetric analysis on post-acute conventional T1-weighted magnetic resonance imaging (MRI) and post-acute diffusion tensor imaging (DTI, analyzed using tract-based spatial statistics and voxel-wise regression)...
January 14, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28088765/allo-allo-triploid-sphagnum-%C3%A3-falcatulum-single-individuals-contain-most-of-the-holantarctic-diversity-for-ancestrally-indicative-markers
#2
Eric F Karlin, Peter E Smouse
BACKGROUND AND AIMS: Allopolyploids exhibit both different levels and different patterns of genetic variation than are typical of diploids. However, scant attention has been given to the partitioning of allelic information and diversity in allopolyploids, particularly that among homeologous monoploid components of the hologenome. Sphagnum × falcatulum is a double allopolyploid peat moss that spans a considerable portion of the Holantarctic. With monoploid genomes from three ancestral species, this organism exhibits a complex evolutionary history involving serial inter-subgeneric allopolyploidizations...
January 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28088685/a-semi-interpenetrating-network-of-polyacrylamide-and-recombinant-basement-membrane-allows-pluripotent-cell-culture-in-a-soft-ligand-rich-microenvironment
#3
Andrew J Price, Eva Y Huang, Vittorio Sebastiano, Alexander R Dunn
The physical properties of the extracellular matrix play an essential role in guiding stem cell differentiation and tissue morphogenesis both in vivo and in vitro. Existing work to investigate the role of matrix mechanics in directing stem cell proliferation, self-renewal, and differentiation has been limited by the poor attachment and survival of human pluripotent cells cultured on soft matrices (Young's modulus E ≲ 1000 Pa). To address this limitation we developed a protocol for generating semi-interpenetrating networks of polyacrylamide and recombinant basement membrane...
December 9, 2016: Biomaterials
https://www.readbyqxmd.com/read/28079014/predicting-cognitive-decline-across-four-decades-in-mutation-carriers-and-non-carriers-in-autosomal-dominant-alzheimer-s-disease
#4
Ove Almkvist, Elena Rodriguez-Vieitez, Steinunn Thordardottir, Kaarina Amberla, Karin Axelman, Hans Basun, Anne Kinhult-Ståhlbom, Lena Lilius, Anne Remes, Lars-Olof Wahlund, Matti Viitanen, Lars Lannfelt, Caroline Graff
OBJECTIVES: The aim of this study was to investigate cognitive performance including preclinical and clinical disease course in carriers and non-carriers of autosomal-dominant Alzheimer's disease (adAD) in relation to multiple predictors, that is, linear and non-linear estimates of years to expected clinical onset of disease, years of education and age. METHODS: Participants from five families with early-onset autosomal-dominant mutations (Swedish and Arctic APP, PSEN1 M146V, H163Y, and I143T) included 35 carriers (28 without dementia and 7 with) and 44 non-carriers...
January 12, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28070274/cunningham-s-skinks-show-low-genetic-connectivity-and-signatures-of-divergent-selection-across-its-distribution
#5
Benjamin Y Ofori, Linda J Beaumont, Adam J Stow
Establishing corridors of connecting habitat has become a mainstay conservation strategy to maintain gene flow and facilitate climate-driven range shifts. Yet, little attention has been given to ascertaining the extent to which corridors will benefit philopatric species, which might exhibit localized adaptation. Measures of genetic connectivity and adaptive genetic variation across species' ranges can help fill this knowledge gap. Here, we characterized the spatial genetic structure of Cunningham's skink (Egernia cunninghami), a philopatric species distributed along Australia's Great Dividing Range, and assessed evidence of localized adaptation...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28068637/assembling-of-multifunctional-latex-based-hybrid-nanocarriers-from-calotropis-gigantea-for-sustained-doxorubicin-dox-releases
#6
Periyakaruppan Pradeepkumar, Dharman Govindaraj, Murugaraj Jeyaraj, Murugan A Munusamy, Mariappan Rajan
Natural rubber Latex (Lax) is a colloidal dispersion of polymer particles in liquid and shows good biodegradable, biocompatibility, and non-toxicity. Natural polymers are the most important materials used in food packaging, micro/nano-drug delivery, tissue engineering, agriculture, and coating. In the present study, natural compounds extracted from plant Lax were designed to function as drug carriers using various surfactants via emulation and solvent evaporation method. Calotropis gigantea belongs to the family Apocynaceae and has received considerable attention in modern medicine, ayurvedeic, siddha, and traditional medicine...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28064024/cognitive-profiles-of-adults-with-high-functioning-autism-spectrum-disorder-and-those-with-attention-deficit-hyperactivity-disorder-based-on-the-wais-iii
#7
Chieko Kanai, Ryuichiro Hashimoto, Takashi Itahashi, Masayuki Tani, Takashi Yamada, Haruhisa Ota, Akira Iwanami, Nobumasa Kato
The cognitive profile differences between adult patients with autism spectrum disorder (ASD) and those with attention-deficit/hyperactivity disorder (ADHD) are not well characterized. We examined the cognitive profiles of adults having either ASD (n=120) or ADHD (n=76) with no intellectual disabilities (IQ≥70) using the Wechsler Intelligence Scale III (WAIS-III). Verbal Intelligence (VIQ) - Performance Intelligence (PIQ) difference discrepancies were detected between the two groups. Information subtest scores of the Verbal Comprehension index and Arithmetic and Digit Span subtests of the Freedom from Distractibility index were significantly higher in ASD than in ADHD, while the Picture Completion subtest was significantly lower in ASD...
January 5, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28062515/joint-attention-and-brain-functional-connectivity-in-infants-and-toddlers
#8
Adam T Eggebrecht, Jed T Elison, Eric Feczko, Alexandre Todorov, Jason J Wolff, Sridhar Kandala, Chloe M Adams, Abraham Z Snyder, John D Lewis, Annette M Estes, Lonnie Zwaigenbaum, Kelly N Botteron, Robert C McKinstry, John N Constantino, Alan Evans, Heather C Hazlett, Stephen Dager, Sarah J Paterson, Robert T Schultz, Martin A Styner, Guido Gerig, Samir Das, Penelope Kostopoulos, Bradley L Schlaggar, Steven E Petersen, Joseph Piven, John R Pruett
Initiating joint attention (IJA), the behavioral instigation of coordinated focus of 2 people on an object, emerges over the first 2 years of life and supports social-communicative functioning related to the healthy development of aspects of language, empathy, and theory of mind. Deficits in IJA provide strong early indicators for autism spectrum disorder, and therapies targeting joint attention have shown tremendous promise. However, the brain systems underlying IJA in early childhood are poorly understood, due in part to significant methodological challenges in imaging localized brain function that supports social behaviors during the first 2 years of life...
January 6, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28059834/what-do-we-know-about-intraoperative-teaching-a-systematic-review
#9
Matthew D Timberlake, Helen G Mayo, Lauren Scott, Joshua Weis, Aimee K Gardner
BACKGROUND: There is increasing attention on enhancing surgical trainee performance and competency. The purpose of this review is to identify characteristics and themes related to intraoperative teaching that will better inform interventions and assessment endeavors. METHODS: A systematic search was carried out of the Ovid MEDLINE, Ovid MEDLINE InProcess, Ovid Embase, and the Cochrane Library databases to identify all studies that discussed teaching in the operating room for trainees at the resident and fellow level...
January 3, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28057878/pseudoautosomal-abnormalities-in-terminal-azfb-c-deletions-are-associated-with-isochromosomes-yp-and-may-lead-to-abnormal-growth-and-neuropsychiatric-function
#10
A Castro, F Rodríguez, M Flórez, P López, B Curotto, D Martínez, A Maturana, M C Lardone, C Palma, V Mericq, M Ebensperger, F Cassorla
STUDY QUESTION: Are copy number variations (CNVs) in the pseudoautosomal regions (PARs) frequent in subjects with Y-chromosome microdeletions and can they lead to abnormal stature and/or neuropsychiatric disorders? SUMMARY ANSWER: Only subjects diagnosed with azoospermia factor (AZF)b+c deletions spanning to the end of the Y chromosome (i.e. terminal deletions) harbor Y isochromosomes and/or cells 45,X that lead to pseudoautosomal gene CNVs, which were associated with abnormal stature and/or neuropsychiatric disorders...
January 5, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28050182/working-memory-training-in-the-form-of-structured-games-in-children-with-attention-deficit-hyperactivity-disorder
#11
Fatemeh Khalili Kermani, Mohammad Reza Mohammadi, Fariba Yadegari, Fatemeh Haresabadi, Seyed Mehdi Sadeghi
Objective: In this study, a new training method of working memory (WM) was used in the form of structured games, and the effect of training was evaluated with a controlled design. The training method of WM in the form of structured games includes 20 sets of structured games that can improve WM and performance of executive functions. Method: Sixty children with attention deficit hyperactivity disorder (ADHD) aged 8.5 to 11.2 years (35 boys), using no stimulant medication were selected. We randomly assigned 30 participants to the experimental group and provided them with WM training...
October 2016: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/28045787/some-neurocognitive-correlates-of-noise-vocoded-speech-perception-in-children-with-normal-hearing-a-replication-and-extension-of-eisenberg-et-al-2002
#12
Adrienne S Roman, David B Pisoni, William G Kronenberger, Kathleen F Faulkner
OBJECTIVES: Noise-vocoded speech is a valuable research tool for testing experimental hypotheses about the effects of spectral degradation on speech recognition in adults with normal hearing (NH). However, very little research has utilized noise-vocoded speech with children with NH. Earlier studies with children with NH focused primarily on the amount of spectral information needed for speech recognition without assessing the contribution of neurocognitive processes to speech perception and spoken word recognition...
December 27, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28045139/chrna7-deficient-mice-manifest-no-consistent-neuropsychiatric-and-behavioral-phenotypes
#13
Jiani Yin, Wu Chen, Hongxing Yang, Mingshan Xue, Christian P Schaaf
The alpha7 nicotinic acetylcholine receptor, encoded by the CHRNA7 gene, has been implicated in various psychiatric and behavioral disorders, including schizophrenia, bipolar disorder, epilepsy, autism, Alzheimer's disease, and Parkinson's disease, and is considered a potential target for therapeutic intervention. 15q13.3 microdeletion syndrome is a rare genetic disorder, caused by submicroscopic deletions on chromosome 15q. CHRNA7 is the only gene in this locus that has been deleted entirely in cases involving the smallest microdeletions...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28040262/environmental-impact-of-estrogens-on-human-animal-and-plant-life-a-critical-review
#14
REVIEW
Muhammad Adeel, Xiaoming Song, Yuanyuan Wang, Dennis Francis, Yuesuo Yang
BACKGROUND: Since the inception of global industrialization, steroidal estrogens have become an emerging and serious concern. Worldwide, steroid estrogens including estrone, estradiol and estriol, pose serious threats to soil, plants, water resources and humans. Indeed, estrogens have gained notable attention in recent years, due to their rapidly increasing concentrations in soil and water all over the world. Concern has been expressed regarding the entry of estrogens into the human food chain which in turn relates to how plants take up and metabolism estrogens...
December 28, 2016: Environment International
https://www.readbyqxmd.com/read/28031077/deployment-of-medical-relief-teams-of-the-indian-army-in-the-aftermath-of-the-nepal-earthquake-lessons-learned
#15
Ashutosh Chauhan, Bhushan Kumar Chopra
In April 2015 a 7.8-magnitude earthquake hit Nepal. As part of relief operations named Operation Maitri, the Indian Armed Forces deployed 3 field hospitals in the disaster zone. Rapid deployment of mobile surgical teams to far-flung, inaccessible areas was done by helicopters. In an operational deployment spanning 1 month, a total of 7532 patients were treated and 105 surgeries were carried out on 83 patients. One-fifth of the patients were less than 18 years of age. One-third of the patients had traumatic injuries directly attributable to the earthquake, whereas the remaining patients were treated for diseases of poor sanitation and hygiene as well as chronic illness that had been neglected owing to the collapse of the local health infrastructure...
December 29, 2016: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28027956/neuropsychological-changes-in-melancholic-and-atypical-depression-a-systematic-review
#16
REVIEW
Nayanne Beckmann Bosaipo, Maria Paula Foss, Allan H Young, Mario Francisco Juruena
There is not a consensus as to whether neuropsychological profiling can distinguish depressive subtypes. We aimed to systematically review and critically analyse the literature on cognitive function in patients with melancholic and atypical depression. We searched in databases PubMed, SCOPUS, Web of Knowledge and PsycInfo for papers comparing the neuropsychological performance of melancholic patients (MEL) to non-melancholic depressive patients (NMEL), including atypical depressives, and healthy controls (HC)...
December 24, 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28012650/occurrence-spatial-distribution-historical-trend-and-ecological-risk-of-phthalate-esters-in-the-jiulong-river-southeast-china
#17
Rongli Li, Jing Liang, Zhenbin Gong, Ningning Zhang, Hualing Duan
The occurrence and spatial distribution of phthalate esters (PAEs) in the Jiulong River of southeast China were investigated in water and sediment samples collected from 35 stations along the river in Mar. 2014. The historical trend of the past 26years was reconstructed with a sediment core collected in Dec. 2012 via a (210)Pb dating technique. The potential ecological risk of PAEs was assessed using the risk quotient (RQ) method. Of the 16 PAE congeners analyzed, only 6 PAEs, including dimethyl phthalate (DMP), diethyl phthalate (DEP), diisobutyl phthalate (DIBP), di-n-butyl phthalate (DBP), di(2-ethylhexyl) phthalate (DEHP) and diisononyl phthalate (DINP), were identified and quantified; the remaining 10 PAEs were below their respective limits of quantification (LOQs) for the analytical methods used here...
December 21, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/28009055/life-history-evolution-reproduction-and-the-origins-of-sex-dependent-aging-and-longevity
#18
Robert C Brooks, Michael G Garratt
Males and females in many species differ in how they age and how long they live. These differences have motivated much research, concerning both their evolution and the underlying mechanisms that cause them. We review how differences in male and female life histories have evolved to shape patterns of aging and some of the mechanisms and pathways involved. We pay particular attention to three areas where considerable potential for synergy between mechanistic and evolutionary research exists: (1) the role of estrogens, androgens, the growth hormone/insulin-like growth factor 1 pathway, and the mechanistic target of rapamycin signaling pathway in sex-dependent growth and reproduction; (2) sexual conflict over mating rate and fertility, and how mate presence or mating can become an avenue for males and females to directly affect each other's life span; and (3) the link between dietary restriction and aging, and the emerging understanding that only the restriction of certain nutrients is involved and that this is linked to reproduction...
December 23, 2016: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28007974/transition-from-environmental-to-partial-genetic-sex-determination-in-daphnia-through-the-evolution-of-a-female-determining-incipient-w-chromosome
#19
Céline M O Reisser, Dominique Fasel, Evelin Hürlimann, Marinela Dukič, Cathy Haag-Liautard, Virginie Thuillier, Yan Galimov, Christoph R Haag
Sex chromosomes can evolve during the evolution of genetic sex determination (GSD) from environmental sex determination (ESD). Despite theoretical attention, early mechanisms involved in the transition from ESD to GSD have yet to be studied in nature. No mixed ESD-GSD animal species have been reported, except for some species of Daphnia, small freshwater crustaceans in which sex is usually determined solely by the environment, but in which a dominant female sex-determining locus is present in some populations...
December 21, 2016: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/27997790/probing-molecular-mechanisms-of-self-assembly-in-metal-organic-frameworks
#20
Debasmita Biswal, Peter G Kusalik
Metal-organic framework materials (MOFs) are a class of nanoporous materials, important to many applications (e.g., gas storage, separation), and their synthesis has received considerable attention. Yet, very little is known about the mechanisms of self-assembly of MOFs. Here, we provide molecular-level insights into the previously unexplored behavior of the self-assembly process, through molecular dynamics simulations, for an archetypal Zn-carboxylate MOF system exhibiting complex vertex topologies (e.g., paddle-wheel clusters)...
December 23, 2016: ACS Nano
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