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https://www.readbyqxmd.com/read/28087712/pdx1-dynamically-regulates-pancreatic-ductal-adenocarcinoma-initiation-and-maintenance
#1
Nilotpal Roy, Kenneth K Takeuchi, Jeanine M Ruggeri, Peter Bailey, David Chang, Joey Li, Laura Leonhardt, Sapna Puri, Megan T Hoffman, Shan Gao, Christopher J Halbrook, Yan Song, Mats Ljungman, Shivani Malik, Christopher V E Wright, David W Dawson, Andrew V Biankin, Matthias Hebrok, Howard C Crawford
Aberrant activation of embryonic signaling pathways is frequent in pancreatic ductal adenocarcinoma (PDA), making developmental regulators therapeutically attractive. Here we demonstrate diverse functions for pancreatic and duodenal homeobox 1 (PDX1), a transcription factor indispensable for pancreas development, in the progression from normal exocrine cells to metastatic PDA. We identify a critical role for PDX1 in maintaining acinar cell identity, thus resisting the formation of pancreatic intraepithelial neoplasia (PanIN)-derived PDA...
December 15, 2016: Genes & Development
https://www.readbyqxmd.com/read/28087196/improving-hospital-care-of-patients-with-intellectual-and-developmental-disabilities
#2
Sarah H Ailey, Paula J Brown, Caitlin M Ridge
People with intellectual disabilities and developmental disabilities (IDD) face poorer care and outcomes when hospitalized than patients without IDD. A panel discussion Hospital care for individuals with IDD: The Issues and Challenges was held at the Annual Conference of the American Academy of Developmental Medicine and Dentistry, held in Chicago July 8-10, 2016. Among the panelists were representatives from Rush University Medical Center in Chicago, IL and Saint Barnabas Medical Center in Livingston, NJ who discussed efforts to improve hospital care of patients with IDD at their institutions...
January 4, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28086798/genome-wide-association-analysis-of-seedling-traits-in-diverse-sorghum-germplasm-under-thermal-stress
#3
Ratan Chopra, Gloria Burow, John J Burke, Nicholas Gladman, Zhanguo Xin
BACKGROUND: Climate variability due to fluctuation in temperature is a worldwide concern that imperils crop production. The need to understand how the germplasm variation in major crops can be utilized to aid in discovering and developing breeding lines that can withstand and adapt to temperature fluctuations is more necessary than ever. Here, we analyzed the genetic variation associated with responses to thermal stresses in a sorghum association panel (SAP) representing major races and working groups to identify single nucleotide polymorphisms (SNPs) that are associated with resilience to temperature stress in a major cereal crop...
January 13, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28086770/social-pediatrics-weaving-horizontal-and-vertical-threads-through-pediatric-residency
#4
Meta van den Heuvel, Maria Athina Tina Martimianakis, Rebecca Levy, Adelle Atkinson, Elizabeth Ford-Jones, Michelle Shouldice
BACKGROUND: Social pediatrics teaches pediatric residents how to understand disease within their patients' social, environmental and political contexts. It's an essential component of pediatric residency training; however there is very little literature that addresses how such a broad-ranging topic can be taught effectively. The aim of this study was to determine and characterize social pediatric education in our pediatric residency training in order to identify strengths and gaps. METHODS: A social pediatrics curriculum map was developed, attending to 3 different dimensions: (1) the intended curriculum as prescribed by the Objectives of Training for Pediatrics of the Royal College of Physicians and Surgeons of Canada (RCPSC), (2) the formal curriculum defined by rotation-specific learning objectives, and (3) the informal/hidden curriculum as reflected in resident and teacher experiences and perceptions...
January 13, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28079918/dose-evaluation-of-lamivudine-in-hiv-infected-children-aged-5%C3%A2-months-18%C3%A2-years-based-on-a-population-pharmacokinetic-analysis
#5
Esther J H Janssen, Diane E T Bastiaans, Pyry A J Välitalo, Annemarie M C van Rossum, Evelyne Jacqz-Aigrain, Hermione Lyall, Catherijne A J Knibbe, David M Burger
AIM: The objectives of this study were to characterise age-related changes in lamivudine pharmacokinetics in children and evaluate lamivudine exposure, followed by dose recommendations for subgroups in which target steady state AUC0-24h is not reached. METHODS: Population pharmacokinetic modelling was performed in NONMEM using data from two model building datasets and two external datasets (n = 180 (age 0.4-18 years, bodyweight 3.4-60.5 kg); 2,061 samples (median 12 per child); daily oral dose 60-300 mg (3...
January 12, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28078514/the-molecular-basis-of-the-organization-of-repetitive-dna-containing-constitutive-heterochromatin-in-mammals
#6
REVIEW
Gohei Nishibuchi, Jérôme Déjardin
Constitutive heterochromatin is composed mainly of repetitive elements and represents the typical inert chromatin structure in eukaryotic cells. Approximately half of the mammalian genome is made of repeat sequences, such as satellite DNA, telomeric DNA, and transposable elements. As essential genes are not present in these regions, most of these repeat sequences were considered as junk DNA in the past. However, it is now clear that these regions are essential for chromosome stability and the silencing of neighboring genes...
January 11, 2017: Chromosome Research
https://www.readbyqxmd.com/read/28077843/orpha-orphic-functions-and-the-orphic-analyst-winnicott-s-regression-to-dependence-in-the-language-of-ferenczi
#7
Hayuta Gurevich
Early developmental trauma is imprinted in the psyche by survival fragmentation and dissociation. Traumatized patients need the analyst to be actively involved and allow for regression to dependence in order to strengthen, create and construct their psychic functioning and structure so that environmental failures will be contained and not rupture continuity of being. I suggest that Ferenczi's and Winnicott's ideas about regression to dependence in analysis are fundamental contributions to these quests, and that Ferenczi set the foundation, which Winnicott further explored and developed...
December 2016: American Journal of Psychoanalysis
https://www.readbyqxmd.com/read/28077017/adolescent-and-young-adult-aya-lymphoma-survivors-report-lower-health-related-quality-of-life-compared-to-a-normative-population-results-from-the-profiles-registry
#8
Olga Husson, Judith B Prins, Suzanne E J Kaal, Simone Oerlemans, Wendy B Stevens, Bradley Zebrack, Winette T A van der Graaf, Lonneke V van de Poll-Franse
BACKGROUND: Trying to simultaneously achieve developmental milestones and cope with a life-threatening disease may place adolescents and young adults (AYAs) at risk for impaired health-related quality of life (HRQoL) later in life. The aim of this study was to examine differences in HRQoL between AYA lymphoma survivors and a normative population and to determine sociodemographic, clinical and long-term symptom-related factors associated with HRQoL. MATERIAL AND METHODS: This study was part of a longitudinal, population-based survey among lymphoma survivors diagnosed between 1999 and 2012...
January 12, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28076638/the-future-of-psychiatric-research
#9
Marco Antonio Caldieraro
Psychiatric disorders place considerable burden on individuals and on public health. Funding for research in psychiatry is less than ideal, but even so high quality research is being conducted at many centers. However, these studies have not impacted clinical practice as much as expected. The complexity of psychiatric disorders is one of the reasons why we face difficulties in translating research results to patient care. New technologies and improved methodologies are now available and must be incorporated to deal with this complexity and to accelerate the translational process...
October 2016: Trends in Psychiatry and Psychotherapy
https://www.readbyqxmd.com/read/28075186/performance-on-tasks-of-visuospatial-memory-and-ability-a-cross-sectional-study-in-330-adolescents-aged-11-to-20
#10
Rudolf Burggraaf, Maarten A Frens, Ignace T C Hooge, Jos N van der Geest
Cognitive functions mature at different points in time between birth and adulthood. Of these functions, visuospatial skills, such as spatial memory and part-to-whole organization, have often been tested in children and adults but have been less frequently evaluated during adolescence. We studied visuospatial memory and ability during this critical developmental period, as well as the correlation between these abilities, in a large group of 330 participants (aged 11 to 20 years, 55% male). To assess visuospatial memory, the participants were asked to memorize and reproduce sequences of random locations within a grid using a computer...
January 11, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28072620/fibrous-dysplasia-mimicking-malignancy-on-68ga-dotatate-pet-ct
#11
Georgios Z Papadakis, Corina Millo, Samira M Sadowski, Apostolos H Karantanas, Ulas Bagci, Nicholas J Patronas
Fibrous dysplasia of the bone is a developmental benign skeletal disorder characterized by replacement of normal bone and normal bone marrow with abnormal fibro-osseous tissue. We report on a case of a biopsy-proven fibrous dysplasia lesion in the left temporal bone, with intensely increased activity (SUVmax, 56.7) on Ga-DOTATATE PET/CT. The presented data indicate cell surface overexpression of somatostatin receptors by fibrous dysplastic cells and highlight the need of cautious management of Ga-DOTATATE-avid bone lesions, which could mimic malignancy especially in patients with history of neuroendocrine tumors...
January 9, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28071834/molecular-profiling-of-human-ips-derived-hypothalamic-neurons-provides-developmental-insights-to-genetic-loci-for-body-weight-regulation
#12
Li Yao, Yuanhang Liu, Zhifang Qiu, Satish Kumar, Joanne E Curran, John Blangero, Yidong Chen, Donna M Lehman
BACKGROUND/OBJECTIVES: Recent data suggests that common genetic risk for metabolic disorders such as obesity may be human-specific and exert effects through the central nervous system. To overcome the limitation of human tissue access for study, we have generated induced human pluripotent stem cell (hiPSC)-derived neuronal cultures which recapture many features of hypothalamic neurons within the arcuate nucleus. Here we have comprehensively characterized this model across development, benchmarked these neurons to in vivo events, and demonstrate a link between obesity risk variants and hypothalamic development...
January 10, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28070106/excessive-activation-of-ahr-signaling-disrupts-neuronal-migration-in-the-hippocampal-ca1-region-in-the-developing-mouse
#13
Eiki Kimura, Ken-Ichiro Kubo, Toshihiro Endo, Kazunori Nakajima, Masaki Kakeyama, Chiharu Tohyama
The aryl hydrocarbon receptor (AhR) avidly binds dioxin, a ubiquitous environmental contaminant. Disruption of downstream AhR signaling has been reported to alter neuronal development, and rodent offspring exposed to dioxin during gestation and lactation showed abnormalities in learning and memory, emotion, and social behavior. However, the mechanism behind the disrupted AhR signaling and developmental neurotoxicity induced by xenobiotic ligands remains elusive. Therefore, we studied how excessive AhR activation affects neuronal migration in the hippocampal CA1 region of the developing mouse brain...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28069595/diverging-temperature-responses-of-co2-assimilation-and-plant-development-explain-the-overall-effect-of-temperature-on-biomass-accumulation-in-wheat-leaves-and-grains
#14
Nicholas C Collins, Boris Parent
There is a growing consensus in the literature that rising temperatures influence the rate of biomass accumulation by shortening the development of plant organs and the whole plant and by altering rates of respiration and photosynthesis. A model describing the net effects of these processes on biomass would be useful, but would need to reconcile reported differences in the effects of night and day temperature on plant productivity. In this study, the working hypothesis was that the temperature responses of CO2 assimilation and plant development rates were divergent, and that their net effects could explain observed differences in biomass accumulation...
January 9, 2017: AoB Plants
https://www.readbyqxmd.com/read/28068538/utilization-of-peers-in-services-for-youth-with-emotional-and-behavioral-challenges-a-scoping-review
#15
Geetha Gopalan, Sang Jung Lee, Ryan Harris, Mary C Acri, Michelle R Munson
This scoping review synthesizes published and unpublished information on Youth Peer Support Services (YPSS), where young adults with current or prior mental health challenges provide support services to other youth and young adults currently struggling with similar difficulties. Existing published and unpublished "grey" literature were reviewed, yielding 30 programs included for data extraction and qualitative syntheses using a descriptive analytic framework. Findings identify variations in service delivery structures, program goals, host service systems, peer roles, core competencies, training and supervision needs, outcomes for youth and young adult consumers, as well as organizational readiness needs to integrate YPSS...
January 6, 2017: Journal of Adolescence
https://www.readbyqxmd.com/read/28068334/two-paralogous-tetraspanins-tsp-12-and-tsp-14-function-with-the-adam10-metalloprotease-sup-17-to-promote-bmp-signaling-in-caenorhabditis-elegans
#16
Lin Wang, Zhiyu Liu, Herong Shi, Jun Liu
The highly conserved bone morphogenetic protein (BMP) signaling pathway regulates many developmental and homeostatic processes. While the core components of the BMP pathway have been well studied, much research is needed for understanding the mechanisms involved in the precise spatiotemporal control of BMP signaling in vivo. Here, we provide evidence that two paralogous and evolutionarily conserved tetraspanins, TSP-12 and TSP-14, function redundantly to promote BMP signaling in C. elegans. We further show that the ADAM10 (a disintegrin and metalloprotease 10) ortholog SUP-17 also functions to promote BMP signaling, and that TSP-12 can bind to and promote the cell surface localization of SUP-17...
January 9, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28066530/play-hands-protective-gloves-technical-note-on-design-and-concept
#17
Michele Houston-Hicks, Derek J Lura, M Jason Highsmith
Cerebral Palsy (CP) is the leading cause of childhood motor disability, with a global incidence of 1.6 to 2.5/1,000 live births. Approximately 23% of children with CP are dependent upon assistive technologies. Some children with developmental disabilities have self-injurious behaviors such as finger biting but also have therapeutic needs. The purpose of this technical note is to describe design considerations for a protective glove and finger covering that maintains finger dexterity for children who exhibit finger and hand chewing (dermatophagia) and require therapeutic range of motion and may benefit from sensory stimulation resulting from constant contact between glove and skin...
September 2016: Technology and Innovation
https://www.readbyqxmd.com/read/28065719/the-currarino-triad-what-pediatric-surgeons-need-to-know
#18
Amr Abdelhamid AbouZeid, Shaimaa Abdelsattar Mohammad, Mohammad Abolfotoh, Ahmed Bassiouny Radwan, Mohamed Mohamed ElSayed Ismail, Tarek Ahmed Hassan
PURPOSE: We report our experience in managing a group of patients with Currarino syndrome, highlighting diagnostic challenges, surgical techniques, in addition to a review of current neurosurgical options. PATIENTS AND METHODS: The study included patients with Currarino syndrome who presented to our pediatric surgery department during the period 2010 through 2016. The 'sacral scimitar' in plain X-ray provided the clue for the diagnosis; while MRI examination was essential to define the nature of the presacral mass and associated spinal anomalies...
December 27, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28064257/epistemic-cognition-in-medical-education-a-literature-review
#19
REVIEW
Jennifer L Eastwood, Elysa Koppelman-White, Misa Mi, Jason Adam Wasserman, Ernest F Krug Iii, Barbara Joyce
Objective: To review the research literature on epistemic cognition in medical education. Methods: We conducted database searches using keywords related to epistemic cognition and medical education or practice. In duplicate, authors selected and reviewed empirical studies with a central focus on epistemic cognition and participant samples including medical students or physicians. Independent thematic analysis and consensus procedures were used to identify major findings about epistemic cognition and implications for research and medical education...
January 7, 2017: International Journal of Medical Education
https://www.readbyqxmd.com/read/28061520/esophageal-atresia-with-or-without-tracheoesophageal-fistula-ea-tef-association-of-different-ea-tef-subtypes-with-specific-co-occurring-congenital-anomalies-and-implications-for-diagnostic-workup
#20
Thomas Bogs, Nadine Zwink, Vera Chonitzki, Alice Hölscher, Thomas M Boemers, Oliver Münsterer, Ralf Kurz, Andreas Heydweiller, Marcus Pauly, Andreas Leutner, Benno M Ure, Martin Lacher, Oliver Johannes Deffaa, Holger Thiele, Soyhan Bagci, Ekkehart Jenetzky, Johannes Schumacher, Heiko Reutter
Background Esophageal atresia with or without tracheoesophageal fistula (EA/TEF) represents the most common developmental malformation of the upper digestive tract. It is classified into six subtypes according to the classification of Vogt, depending on anatomical variation of this malformation. Around 50% of the patients with EA/TEF present additional anomalies, which often influence, next to the EA/TEF subtype, the overall prognosis of EA/TEF newborns. Here, we investigated the association of the different EA/TEF subtypes with co-occurring congenital anomalies in EA/TEF patients and demonstrate their implications for postnatal diagnostic workup...
January 6, 2017: European Journal of Pediatric Surgery
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