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Developmental coordination

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https://www.readbyqxmd.com/read/29343607/behavioural-tactic-predicts-preoptic-hypothalamic-gene-expression-more-strongly-than-developmental-morph-in-fish-with-alternative-reproductive-tactics
#1
Joel A Tripp, Ni Y Feng, Andrew H Bass
Reproductive success relies on the coordination of social behaviours, such as territory defence, courtship and mating. Species with extreme variation in reproductive tactics are useful models for identifying the neural mechanisms underlying social behaviour plasticity. The plainfin midshipman (Porichthys notatus) is a teleost fish with two male reproductive morphs that follow widely divergent developmental trajectories and display alternative reproductive tactics (ARTs). Type I males defend territories, court females and provide paternal care, but will resort to cuckoldry if they cannot maintain a territory...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29339004/differential-activation-of-brain-areas-in-children-with-developmental-coordination-disorder-during-tasks-of-manual-dexterity-an-ale-meta-analysis
#2
REVIEW
I Fuelscher, K Caeyenberghs, P G Enticott, J Williams, J Lum, C Hyde
Recent neuroimaging studies have reported atypical neural activation in children with Developmental Coordination Disorder (DCD) during tasks assessing manual dexterity. However, small sample sizes and subtle differences in task parameters have led to inconsistent findings, rendering interpretation difficult. The aim of the present meta-analysis was to quantitatively summarize this body of evidence using activation likelihood estimation (ALE) analysis to identify reliable regions of differential neural activation in children with DCD, compared to age-matched controls...
January 12, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29337147/neuronal-pten-deletion-in-adult-cortical-neurons-triggers-progressive-growth-of-cell-bodies-dendrites-and-axons
#3
Erin A Gallent, Oswald Steward
Deletion of the phosphatase and tensin (PTEN) gene in neonatal mice leads to enlargement of the cell bodies of cortical motoneurons (CMNs) in adulthood (Gutilla et al., 2016). Here, we assessed whether PTEN deletion in adult mice would trigger growth of mature neurons. PTEN was deleted by injecting AAV-Cre into the sensorimotor cortex of adult transgenic mice with a lox-P flanked exon 5 of the PTEN gene and Cre-dependent reporter gene tdTomato. PTEN-deleted CMN's identified by tdT expression and retrograde labeling with fluorogold (FG) were significantly enlarged four months following PTEN deletion, and continued to increase in size through the latest time intervals examined (12-15 months post-deletion)...
January 11, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29337130/an-organizing-role-for-the-tgf-%C3%AE-signaling-pathway-in-axes-formation-of-the-annelid-capitella-teleta
#4
Alexis R Lanza, Elaine C Seaver
Embryonic organizers are signaling centers that coordinate developmental events within an embryo. Localized to either an individual cell or group of cells, embryonic organizing activity induces the specification of other cells in the embryo and can influence formation of body axes. In the spiralian Capitella teleta, previous cell deletion studies have shown that organizing activity is localized to a single cell, 2d, and this cell induces the formation of the dorsal-ventral axis and bilateral symmetry. In this study, we attempt to identify the signaling pathway responsible for the organizing activity of 2d...
January 11, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29337120/deriving-dorsal-spinal-sensory-interneurons-from-human-pluripotent-stem%C3%A2-cells
#5
Sandeep Gupta, Daniel Sivalingam, Samantha Hain, Christian Makkar, Enrique Sosa, Amander Clark, Samantha J Butler
Cellular replacement therapies for neurological conditions use human embryonic stem cell (hESC)- or induced pluripotent stem cell (hiPSC)-derived neurons to replace damaged or diseased populations of neurons. For the spinal cord, significant progress has been made generating the in-vitro-derived motor neurons required to restore coordinated movement. However, there is as yet no protocol to generate in-vitro-derived sensory interneurons (INs), which permit perception of the environment. Here, we report on the development of a directed differentiation protocol to derive sensory INs for both hESCs and hiPSCs...
January 9, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29336037/developmental-control-of-hypoxia-during-bud-burst-in-grapevine
#6
Karlia Meitha, Patricia Agudelo-Romero, Santiago Signorelli, Daniel J Gibbs, John A Considine, Christine H Foyer, Michael J Considine
Dormant or quiescent buds of woody perennials are often dense, and in the case of grapevine (Vitis vinifera L.) have a low tissue oxygen status. The precise timing of the decision to resume growth is difficult to predict, but once committed the increase in tissue oxygen status is rapid and developmentally regulated. Here we show that more than a third of the grapevine homologues of widely conserved hypoxia-responsive genes, and nearly a fifth of all grapevine genes possessing a plant hypoxia-responsive promoter element were differentially regulated during bud burst, in apparent harmony with resumption of meristem identity and cell-cycle gene regulation...
January 15, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29335528/exd2-governs-germ-stem-cell-homeostasis-and-lifespan-by-promoting-mitoribosome-integrity-and-translation
#7
Joana Silva, Suvi Aivio, Philip A Knobel, Laura J Bailey, Andreu Casali, Maria Vinaixa, Isabel Garcia-Cao, Étienne Coyaud, Alexis A Jourdain, Pablo Pérez-Ferreros, Ana M Rojas, Albert Antolin-Fontes, Sara Samino-Gené, Brian Raught, Acaimo González-Reyes, Lluís Ribas de Pouplana, Aidan J Doherty, Oscar Yanes, Travis H Stracker
Mitochondria are subcellular organelles that are critical for meeting the bioenergetic and biosynthetic needs of the cell. Mitochondrial function relies on genes and RNA species encoded both in the nucleus and mitochondria, and on their coordinated translation, import and respiratory complex assembly. Here, we characterize EXD2 (exonuclease 3'-5' domain-containing 2), a nuclear-encoded gene, and show that it is targeted to the mitochondria and prevents the aberrant association of messenger RNAs with the mitochondrial ribosome...
January 15, 2018: Nature Cell Biology
https://www.readbyqxmd.com/read/29335358/sox2-is-essential-for-oligodendroglial-proliferation-and-differentiation-during-postnatal-brain-myelination-and-cns-remyelination
#8
Sheng Zhang, Xiaoqing Zhu, Xuehong Gui, Christopher Croteau, Lanying Song, Jie Xu, Aijun Wang, Peter Bannerman, Fuzheng Guo
In the central nervous system (CNS), myelination and remyelination depend on the successful progression and maturation of oligodendroglial lineage cells including proliferation and differentiation of oligodendroglial progenitor cells (OPCs). Previous studies have reported that Sox2 transiently regulates oligodendrocyte (OL) differentiation in the embryonic and perinatal spinal cord and appears dispensable for myelination in the postnatal spinal cord. However, the role of Sox2 in OL development in the brain has yet to be defined...
January 15, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29333599/developmental-coordination-disorder-the-role-of-executive-functions
#9
Rainer Blank
No abstract text is available yet for this article.
January 14, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29330906/generating-retinoic-acid-gradients-by-local-degradation-during-craniofacial-development-one-cell-s-cue-is-another-cell-s-poison
#10
REVIEW
Aditi Dubey, Rebecca E Rose, Drew R Jones, Jean-Pierre Saint-Jeannet
Retinoic acid (RA) is a vital morphogen for early patterning and organogenesis in the developing embryo. RA is a diffusible, lipophilic molecule that signals via nuclear RA receptor heterodimeric units that regulate gene expression by interacting with RA response elements in promoters of a significant number of genes. For precise RA signaling, a robust gradient of the morphogen is required. The developing embryo contains regions that produce RA, and specific intracellular concentrations of RA are created through local degradation mediated by Cyp26 enzymes...
January 13, 2018: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/29329904/assembly-maturation-and-degradation-of-the-supraspinatus-enthesis
#11
REVIEW
Peter T Jensen, Kate L Lambertsen, Lars H Frich
The development of the rotator cuff enthesis is still poorly understood. The processes in the early and late developmental steps are gradually elucidated, but it is still unclear how cell activities are coordinated during development and maturation of the structured enthesis. This review summarizes current knowledge about development and age-related degradation of the supraspinatus enthesis. Healing and repair of an injured and degenerated supraspinatus enthesis also remain a challenge, as the original graded transitional tissue of the fibrocartilaginous insertion is not re-created after the tendon is surgically reattached to bone...
January 10, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29329670/motor-skill-interventions-in-children-with-developmental-coordination-disorder-a-systematic-review-and-meta-analysis
#12
REVIEW
Jane J Yu, Cindy H P Sit, Angus F Burnett
OBJECTIVES: To determine the characteristics and effectiveness of motor skill interventions in children with developmental coordination disorder (DCD) and to identify potential moderators of training effects using meta-analysis. DATA SOURCES: A search was conducted in six databases (CINAHL Plus, Cochrane Library, Embase, Eric, PsycInfo, and PubMed) for papers published between 1995 and August 2017 using search items which were grouped in three components (motor skill interventions, DCD, and age group of interest)...
January 9, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29329291/ovule-identity-mediated-by-pre-mrna-processing-in-arabidopsis
#13
Encarnación Rodríguez-Cazorla, Samanta Ortuño-Miquel, Héctor Candela, Lindsay J Bailey-Steinitz, Martin F Yanofsky, Antonio Martínez-Laborda, Juan-José Ripoll, Antonio Vera
Ovules are fundamental for plant reproduction and crop yield as they are the precursors of seeds. Therefore, ovule specification is a critical developmental program. In Arabidopsis thaliana, ovule identity is redundantly conferred by the homeotic D-class genes SHATTERPROOF1 (SHP1), SHP2 and SEEDSTICK (STK), phylogenetically related to the MADS-domain regulatory gene AGAMOUS (AG), essential in floral organ specification. Previous studies have shown that the HUA-PEP activity, comprised of a suite of RNA-binding protein (RBP) encoding genes, regulates AG pre-mRNA processing and thus flower patterning and organ identity...
January 12, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29322524/a-comprehensive-analysis-of-neurotrophins-and-neurotrophin-tyrosine-kinase-receptors-expression-during-development-of-zebrafish
#14
Valeria Nittoli, Rosa M Sepe, Ugo Coppola, Ylenia D'Agostino, Elena De Felice, Antonio Palladino, Quirino A Vassalli, Annamaria Locascio, Filomena Ristoratore, Antonietta Spagnuolo, Salvatore D'Aniello, Paolo Sordino
Neurotrophins (NTF) are a family of secreted nerve growth factors with affinity for tyrosine kinase (Ntrk) and p75 receptors. To fully understand the variety of developmental roles played by NTFs, it is critical to know when and where genes encoding individual ligands and receptors are transcribed. Identification of ntf and ntrk transcripts in zebrafish development remains to be fully characterized for further uncovering the potential function(s) of the NTF signal transduction pathway. Here, we conducted a systematic analysis of the expression profiles of four ntf and five ntrk genes during zebrafish development using whole-mount in situ hybridization...
January 11, 2018: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29320691/network-features-and-dynamical-landscape-of-naive-and-primed-pluripotency
#15
Benjamin Pfeuty, Clémence Kress, Bertrand Pain
Although the broad and unique differentiation potential of pluripotent stem cells relies on a complex transcriptional network centered around Oct4, Sox2, and Nanog, two well-distinct pluripotent states, called "naive" and "primed", have been described in vitro and markedly differ in their developmental potential, their expression profiles, their signaling requirements, and their reciprocal conversion. Aiming to determine the key features that segregate and coordinate these two states, data-driven optimization of network models is performed to identify relevant parameter regimes and reduce network complexity to its core structure...
January 9, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29317529/chemical-waves-in-cell-and-developmental-biology
#16
REVIEW
Victoria E Deneke, Stefano Di Talia
Many biological events, such as the propagation of nerve impulses, the synchronized cell cycles of early embryogenesis, and collective cell migration, must be coordinated with remarkable speed across very large distances. Such rapid coordination cannot be achieved by simple diffusion of molecules alone and requires specialized mechanisms. Although active transport can provide a directed and efficient way to travel across subcellular structures, it cannot account for the most rapid examples of coordination found in biology...
January 9, 2018: Journal of Cell Biology
https://www.readbyqxmd.com/read/29313185/comparing-attention-to-socially-relevant-stimuli-in-autism-spectrum-disorder-and-developmental-coordination-disorder
#17
Emma Sumner, Hayley C Leonard, Elisabeth L Hill
Difficulties with social interaction have been reported in both children with an autism spectrum disorder (ASD) and children with developmental coordination disorder (DCD), although these disorders have very different diagnostic characteristics. To date, assessment of social skills in a DCD population has been limited to paper-based assessment or parent report. The present study employed eye tracking methodology to examine how children attend to socially-relevant stimuli, comparing 28 children with DCD, 28 children with ASD and 26 typically-developing (TD) age-matched controls (aged 7-10)...
January 9, 2018: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/29309380/autism-spectrum-disorder-in-primary-care
#18
Victoria A Weill, Stefanie Zavodny, Margaret C Souders
Nurse practitioners working in the primary care setting will commonly see children with autism spectrum disorder. It is important for clinicians to be vigilant for subtle developmental signs that can lead to early identification and diagnosis. This article presents information on assessment, screening, the responsibilities in coordinating services, and ways to support families.
January 5, 2018: Nurse Practitioner
https://www.readbyqxmd.com/read/29307115/bioinformatic-analyses-of-zona-pellucida-genes-in-vertebrates-and-their-expression-in-nile-tilapia
#19
Tianli Wu, Yunying Cheng, Zhilong Liu, Wenjing Tao, Shuqing Zheng, Deshou Wang
Zona pellucida (ZP) genes encode ZP glycoproteins which constitute the coat surrounding oocytes and early embryos. Genome-wide identification of ZP genes is still lacking in vertebrates, especially in fish species. Herein, we conducted bioinformatic analyses of the ZP genes of the Nile tilapia and other vertebrates. Totally 16, 9, 17, 27, 21, 20, 26, 19, 14,11, 24, 17, 9, 18, 8, 11, 9, 8, 5, and 4 ZP genes belonging to 5 subfamilies (ZPA, ZPB, ZPC, ZPD, and ZPAX) were found in the sea lamprey, elephant shark, coelacanth, spotted gar, zebrafish, medaka, stickleback, Nile tilapia, Amazon molly, platyfish, seahorse, Northern snakehead, cavefish, tetraodon, clawed frog, turtle, chicken, platypus, kangaroo rat, and human genomes, respectively...
January 6, 2018: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29304851/development-of-the-excitation-contraction-coupling-machinery-and-its-relation-to-myofibrillogenesis-in-human-ipsc-derived-skeletal-myocytes
#20
Jeanne Lainé, Gunnar Skoglund, Emmanuel Fournier, Nacira Tabti
BACKGROUND: Human induced pluripotent stem cells-derived myogenic progenitors develop functional and ultrastructural features typical of skeletal muscle when differentiated in culture. Besides disease-modeling, such a system can be used to clarify basic aspects of human skeletal muscle development. In the present study, we focus on the development of the excitation-contraction (E-C) coupling, a process that is essential both in muscle physiology and as a tool to differentiate between the skeletal and cardiac muscle...
January 5, 2018: Skeletal Muscle
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