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Developmental programming

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https://www.readbyqxmd.com/read/28727965/is-psychology-headed-in-the-right-direction-yes-no-and-maybe
#1
Carol S Dweck
In this piece, I first celebrate the growing contribution of psychology to the understanding and solution of pressing social issues. Then, despite these exciting developments, I worry about whether we have created a field that our students want to spend their lives in, and I suggest concerns that might fruitfully be addressed. Finally, I worry about the potential fragmentation of psychology and applaud programs of research that have shown the unique and important contributions to be made when the methods and perspectives of neuroscience, cognitive science, and computational modeling are integrated with those of social, personality, and developmental psychology...
July 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28727004/physiology-and-endocrinology-symposium-postnatal-reproductive-development-and-the-lactocrine-hypothesis
#2
F F Bartol, A A Wiley, A F George, D J Miller, C A Bagnell
Maternal effects on development can program cell fate and dictate offspring phenotype. Such effects do not end at birth, but extend into postnatal life through signals communicated from mother to offspring in first milk (colostrum). Transmission of bioactive factors from mother to offspring as a specific consequence of nursing defines a lactocrine mechanism. The female reproductive tract is not fully formed at birth (postnatal day = PND 0). Data for ungulates and mice indicate that disruption of development during neonatal life can have lasting effects on the form and function of uterine tissues...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28725209/a-national-early-intervention-system-as-a-strategy-to-promote-inclusion-and-academic-achievement-in-portugal
#3
Vitor Franco, Madalena Melo, Graça Santos, Ana Apolónio, Leonor Amaral
Early intervention with children at risk or facing developmental problems is a practice defined by three fundamental characteristics: being family-centered, being based on the community and on the child's life context, and being conducted by a team with transdisciplinary practice. In this paper we wish to present how the SNIPI-National System of Early Intervention, implemented in Portugal over the past 15 years, contributes to promote maximum development and the full inclusion of children up to 6 years of age and works to prevent school failure...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28724513/development-of-a-tailored-hiv-prevention-intervention-for-single-young-men-who-have-sex-with-men-who-meet-partners-online-protocol-for-the-mydex-project
#4
Jose Arturo Bauermeister, Ryan C Tingler, Michele Demers, Gary W Harper
BACKGROUND: New cases of human immunodeficiency virus (HIV) among young men who have sex with men (YMSM), aged 18 to 24, underscore the importance of developmentally-informed HIV programs for YMSM. We developed an online intervention focused on risk reduction strategies across different sexual partner types. Intervention activities focus on assisting YMSM reflect on their partner-seeking behaviors, develop sexual decision-making rules to reduce their HIV risks, and consider the adoption of HIV prevention behaviors...
July 19, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28722313/cellular-glycosylation-senses-metabolic-changes-and-modulates-cell-plasticity-during-emt
#5
REVIEW
P Carvalho-Cruz, F Alisson-Silva, A R Todeschini, W B Dias
Epithelial to mesenchymal transition (EMT) is a developmental program reactivated by tumor cells that leads to the switch from epithelial to mesenchymal phenotype. During EMT, cells are transcriptionally regulated to decrease E-cadherin expression while expressing mesenchymal markers such as vimentin, fibronectin and N-cadherin. Growing body of evidences suggest that cells engaged in EMT undergo a metabolic reprograming process, redirecting glucose flux toward Hexosamine Biosynthesis Pathway (HBP) which fuels aberrant glycosylation patterns that are extensively observed in cancer cells...
July 19, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28720705/conceptual-framework-of-the-eco-physiological-phases-of-insect-diapause-development-justified-by-transcriptomic-profiling
#6
Vladimír Koštál, Tomáš Štětina, Rodolphe Poupardin, Jaroslava Korbelová, Alexander William Bruce
Insects often overcome unfavorable seasons in a hormonally regulated state of diapause during which their activity ceases, development is arrested, metabolic rate is suppressed, and tolerance of environmental stress is bolstered. Diapausing insects pass through a stereotypic succession of eco-physiological phases termed "diapause development." The phasing is varied in the literature, and the whole concept is sometimes criticized as being too artificial. Here we present the results of transcriptional profiling using custom microarrays representing 1,042 genes in the drosophilid fly, Chymomyza costata Fully grown, third-instar larvae programmed for diapause by a photoperiodic (short-day) signal were assayed as they traversed the diapause developmental program...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28720290/how-to-improve-sleep-in-a-neonatal-intensive-care-unit-a-systematic-review
#7
Agnes van den Hoogen, Charlotte J Teunis, Renée A Shellhaas, Sigrid Pillen, Manon Benders, Jeroen Dudink
There is increasing evidence that sleep plays a major role in the development of neural pathways in the neonatal brain. Several studies have suggested evidence-based approaches to improve sleep for infants admitted to the neonatal intensive care unit (NICU); however, in many neonatal centers very few of these strategies seem to be implemented in routine care. OBJECTIVE: To systematically review the literature to determine interventions promoting neonatal sleep on the NICU, in order to develop key guidelines to improve neonatal sleep...
July 15, 2017: Early Human Development
https://www.readbyqxmd.com/read/28718443/developing-cures-targeting-ontogenesis-in-cancer
#8
REVIEW
Victor T G Lin, Hawley C Pruitt, Rajeev S Samant, Lalita A Shevde
Cancer has long been known to histologically resemble developing embryonic tissue. Since this early observation, a mounting body of evidence suggests that cancer mimics or co-opts developmental processes to facilitate tumor initiation and progression. Programs important in both normal ontogenesis and cancer progression broadly fall into three domains: the lineage commitment of pluripotent stem cells, the appropriation of primordial mechanisms of cell motility and invasion, and the influence of multiple aspects of the microenvironment on the parenchyma...
February 2017: Trends in Cancer
https://www.readbyqxmd.com/read/28716942/maternal-photoperiod-programs-hypothalamic-thyroid-status-via-the-fetal-pituitary-gland
#9
Cristina Sáenz de Miera, Béatrice Bothorel, Catherine Jaeger, Valérie Simonneaux, David Hazlerigg
In wild mammals, offspring development must anticipate forthcoming metabolic demands and opportunities. Within species, different developmental strategies may be used, dependent on when in the year conception takes place. This phenotypic flexibility is initiated before birth and is linked to the pattern of day length (photoperiod) exposure experienced by the mother during pregnancy. This programming depends on transplacental communication via the pineal hormone melatonin. Here, we show that, in the Siberian hamster (Phodopus sungorus), the programming effect of melatonin is mediated by the pars tuberalis (PT) of the fetal pituitary gland, before the fetal circadian system and autonomous melatonin production is established...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28716719/metacyclic-vsg-expression-site-promoters-are-recognized-by-the-same-general-transcription-factor-that-is-required-for-rna-polymerase-i-transcription-of-bloodstream-expression-sites
#10
Nikolay G Kolev, Arthur Günzl, Christian Tschudi
Infectious metacyclic Trypanosoma brucei cells develop in the salivary glands of tsetse flies. A critical aspect of the developmental program leading to acquisition of infectivity is the synthesis of a variant surface glycoprotein (VSG) coat. Metacyclic VSG genes are transcribed from a set of specialized VSG expression sites (ESs) that differ from bloodstream VSG ESs by being monocistronic, being significantly shorter, lacking long stretches of 70-bp repeats, and having distinct promoter sequences. Both metacyclic and bloodstream VSG ESs are transcribed by the multifunctional T...
July 14, 2017: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/28716037/phylogeny-expression-patterns-and-regulation-of-dna-methyltransferases-in-early-development-of-the-flatfish-solea-senegalensis
#11
Joana Firmino, Carlos Carballo, Paula Armesto, Marco A Campinho, Deborah M Power, Manuel Manchado
BACKGROUND: The identification of DNA methyltransferases (Dnmt) expression patterns during development and their regulation is important to understand the epigenetic mechanisms that modulate larval plasticity in marine fish. In this study, dnmt1 and dnmt3 paralogs were identified in the flatfish Solea senegalensis and expression patterns in early developmental stages and juveniles were determined. Additionally, the regulation of Dnmt transcription by a specific inhibitor (5-aza-2'-deoxycytidine) and temperature was evaluated...
July 17, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28715961/genetics-and-epigenetics-of-mating-type-determination-in-paramecium-and-tetrahymena
#12
Eduardo Orias, Deepankar Pratap Singh, Eric Meyer
While sex is an ancient and highly conserved eukaryotic invention, self-incompatibility systems such as mating types or sexes appear to be derived limitations that show considerable evolutionary plasticity. Within a single class of ciliates, Paramecium and Tetrahymena species have long been known to present a wide variety of mating type numbers and modes of inheritance, but only recently have the genes involved been identified. Although similar transmembrane proteins mediate self/nonself recognition in both ciliates, the mechanisms of mating type determination differ widely, ranging from Mendelian systems to developmental nuclear differentiation, either stochastic or maternally inherited...
July 17, 2017: Annual Review of Microbiology
https://www.readbyqxmd.com/read/28715716/ronin-influences-the-dna-damage-response-in-pluripotent-stem-cells
#13
Bryce A Seifert, Marion Dejosez, Thomas P Zwaka
Early mammalian embryonic cells must maintain a particularly robust DNA repair system, as mutations at this developmental point have detrimental consequences for the organism. How the repair system can be tuned to fulfill such elevated requirements is largely unknown, but it may involve transcriptional regulation. Ronin (Thap11) is a transcriptional regulator responsible for vital programs in pluripotent cells. Here, we report that this protein also modulates the DNA damage response of such cells. We show that conditional Ronin knockout sensitizes embryonic stem cells (ESCs) to UV-C-induced DNA damage in association with Atr pathway activation and G2/M arrest...
July 3, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28714607/new-insights-into-how-serotonin-selective-reuptake-inhibitors-shape-the-developing-brain
#14
REVIEW
Jay A Gingrich, Heli Malm, Mark S Ansorge, Alan Brown, Andre Sourander, Deepika Suri, Cátia M Teixeira, Martha K Caffrey Cagliostro, Darshini Mahadevia, Myrna M Weissman
Development passes through sensitive periods, during which plasticity allows for genetic and environmental factors to exert indelible influence on the maturation of the organism. In the context of central nervous system (CNS) development, such sensitive periods shape the formation of neuro-circuits that mediate, regulate, and control behavior. This general mechanism allows for development to be guided by both the genetic blueprint, as well as the environmental context. While allowing for adaptation, such sensitive periods are also windows of vulnerability during which external and internal factors can confer risk to brain disorders by derailing adaptive developmental programs...
July 17, 2017: Birth defects research
https://www.readbyqxmd.com/read/28714605/epigenetic-alterations-and-prenatal-maternal-depression
#15
REVIEW
Zsofia Nemoda, Moshe Szyf
Major depressive disorder of the mother affects 6 to 17% of pregnancies worldwide and can lead to negative outcomes, such as preterm delivery and later mental health problems of the child. It has been proposed that developmental programming has long-lasting effects in the offspring that might be mediated by epigenetic mechanisms, such as DNA methylation. Altered stress regulation or impaired immunological function of the mother can potentially affect DNA methylation processes of the fetus, changing gene expression levels in utero...
July 17, 2017: Birth defects research
https://www.readbyqxmd.com/read/28714297/inter-and-intra-rater-reliability-and-minimal-detectable-difference-of-movement-disorder-childhood-rating-scale
#16
Giuseppina Sgandurra, Ilaria Olivieri, Manuela Casarano, Roberta DI Pietro, Valentina Menici, Chiara Velli, Francesca Sini, Simona Lucibello, Domenico M Romeo, Giovanni Cioni, Roberta Battini
BACKGROUND: Movement Disorder-Childhood Rating Scales (MD-CRS) have been designed in two forms (0-3 and 4-18 years) to accurately evaluate various movement disorders in children. AIM: The aim of this study is to evaluate the MD-CRS reliability when used by clinicians and professionals of rehabilitation after a one-day training on scoring it. DESIGN: This is a measurement-focused study of video-recorded sessions. SETTING: Video session carried out inpatient and outpatient...
July 13, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28713414/divergent-evolutionary-patterns-of-nac-transcription-factors-are-associated-with-diversification-and-gene-duplications-in-angiosperm
#17
Xiaoli Jin, Jing Ren, Eviatar Nevo, Xuegui Yin, Dongfa Sun, Junhua Peng
NAC (NAM/ATAF/CUC) proteins constitute one of the biggest plant-specific transcription factor (TF) families and have crucial roles in diverse developmental programs during plant growth. Phylogenetic analyses have revealed both conserved and lineage-specific NAC subfamilies, among which various origins and distinct features were observed. It is reasonable to hypothesize that there should be divergent evolutionary patterns of NAC TFs both between dicots and monocots, and among NAC subfamilies. In this study, we compared the gene duplication and loss, evolutionary rate, and selective pattern among non-lineage specific NAC subfamilies, as well as those between dicots and monocots, through genome-wide analyses of sequence and functional data in six dicot and five grass lineages...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28711233/review-of-sleep-eeg-in-preterm-and-term-neonates
#18
Anneleen Dereymaeker, Kirubin Pillay, Jan Vervisch, Maarten De Vos, Sabine Van Huffel, Katrien Jansen, Gunnar Naulaers
Neonatal sleep is a crucial state that involves endogenous driven brain activity, important for neuronal survival and guidance of brain networks. Sequential EEG-sleep analysis in preterm infants provides insights into functional brain integrity and can document deviations of the biologically pre-programmed process of sleep ontogenesis during the neonatal period. Visual assessment of neonatal sleep-EEG, with integration of both cerebral and non-cerebral measures to better define neonatal state, is still considered the gold standard...
July 12, 2017: Early Human Development
https://www.readbyqxmd.com/read/28710131/gene-regulatory-networks-for-the-haploid-to-diploid-transition-of-chlamydomonas-reinhardtii
#19
Sunjoo Joo, Yoshiki Nishimura, Evan Cronmiller, Ran Ha Hong, Thamali Kariyawasam, Ming Hsiu Wang, Nai Chun Shao, Saif-El-Din El Akkad, Takamasa Suzuki, Tetsuya Higashiyama, EonSeon Jin, Jae-Hyeok Lee
The sexual cycle of the unicellular Chlamydomonas reinhardtii culminates in the formation of diploid zygotes which differentiate into dormant spores that eventually undergo meiosis. Mating between gametes induces rapid cell wall shedding via the enzyme g-lysin; cell fusion is followed by heterodimerization of sex-specific homeobox transcription factors, GSM1 and GSP1, and initiation of zygote-specific gene expression. To investigate the genetic underpinnings of the zygote developmental pathway, we performed comparative transcriptome analysis of both pre- and post-fertilization samples...
July 14, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28710039/cloning-expression-pattern-and-potential-role-of-apoptosis-inhibitor-5-in-the-termination-of-embryonic-diapause-and-early-embryo-development-of-artemia-sinica
#20
Shuang Zhang, Feng Yao, Ting Jing, Mengchen Zhang, Wei Zhao, Xiangyang Zou, Linlin Sui, Lin Hou
During the embryonic development of Artemia sinica, the diapause phenomenon can be induced by high salinity or low temperature conditions. The diapause embryo at the gastrula stage is maintained under the threat of apoptosis to guarantee the embryo's normal development. In this process, apoptosis inhibitor proteins play vital roles in protecting embryos against apoptosis. Apoptosis inhibitor5 (API5) plays a pivotal role in regulating the cell cycle and preventing programmed cell death after growth factor starvation...
July 11, 2017: Gene
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