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https://www.readbyqxmd.com/read/29351288/environmental-enteric-dysfunction-pathways-and-child-stunting-a-systematic-review
#1
Kaitlyn M Harper, Maxine Mutasa, Andrew J Prendergast, Jean Humphrey, Amee R Manges
BACKGROUND: Environmental enteric dysfunction (EED) is commonly defined as an acquired subclinical disorder of the small intestine, characterized by villous atrophy and crypt hyperplasia. EED has been proposed to underlie stunted growth among children in developing countries. A collection of biomarkers, organized into distinct domains, has been used to measure different aspects of EED. Here, we examine whether these hypothesized relationships, among EED domains and between each domain and stunting, are supported by data from recent studies...
January 19, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29339137/oxygen-induced-alterations-in-the-expression-of-chromatin-modifying-enzymes-and-the-transcriptional-regulation-of-imprinted-genes
#2
William M Skiles, Avery Kester, Jane H Pryor, Mark E Westhusin, Michael C Golding, Charles R Long
Embryo culture and assisted reproductive technologies have been associated with a disproportionately high number of epigenetic abnormalities in the resulting offspring. However, the mechanisms by which these techniques influence the epigenome remain poorly defined. In this study, we evaluated the capacity of oxygen concentration to influence the transcriptional control of a selection of key enzymes regulating chromatin structure. In mouse embryonic stem cells, oxygen concentrations modulated the transcriptional regulation of the TET family of enzymes, as well as the de novo methyltransferase Dnmt3a...
January 12, 2018: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/29334021/a-comparison-of-training-and-competition-demands-in-semiprofessional-male-basketball-players
#3
Jordan L Fox, Robert Stanton, Aaron T Scanlan
PURPOSE: The purpose of this study was to quantify and compare training and competition demands in basketball. METHODS: Fifteen semiprofessional male basketball players wore microsensors during physical conditioning training (PCT), games-based training (GBT), and competition to measure absolute and relative (·min-1) PlayerLoadTM (PL) and estimated equivalent distance (EED). Internal responses were calculated using absolute and relative session rating of perceived exertion (sRPE) and summated heart rate zones (SHRZ)...
January 15, 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29325698/what-causes-childhood-stunting-among-children-of-san-vicente-guatemala-employing-complimentary-system-analysis-approaches
#4
Lee E Voth-Gaeddert, Matthew Stoker, Devin Cornell, Daniel B Oerther
Guatemala has the sixth worst stunting rate with 48% of children under five years of age classified as stunted according to World Health Organization standards. This study utilizes two different yet complimentary system-analysis approaches to analyze correlations among environmental and demographic variables, environmental enteric dysfunction (EED), and child height-for-age (stunting metric) in Guatemala. Two descriptive models constructed around applicable environmental and demographic factors on child height-for-age and EED were analyzed using Network Analysis (NA) and Structural Equation Modeling (SEM)...
January 5, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29303439/value-of-whole-body-low-dose-computed-tomography-in-patients-with-ventriculoperitoneal-shunts-a-retrospective-study
#5
Andrej Pala, Fadi Awad, Michael Braun, Michal Hlavac, Arthur Wunderlich, Bernd Schmitz, Christian Rainer Wirtz, Jan Coburger
OBJECTIVE The gold standard for evaluation of ventriculoperitoneal (VP) shunt position, dislocation, or disconnection is conventional radiography. Yet, assessment with this modality can be challenging because of low image quality and can result in repetitive radiation exposure with high fluctuation in the radiation dose. Recently, CT-based radiation doses have been significantly reduced by using low-dose protocols. Thus, whole-body low-dose CT (LDCT) has become applicable for routine use in VP shunt evaluation...
January 5, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29281659/immunogenicity-of-rotavirus-vaccine-rotarixtm-in-infants-with-environmental-enteric-dysfunction
#6
Innocent Mwape, Samuel Bosomprah, John Mwaba, Katayi Mwila-Kazimbaya, Natasha Makabilo Laban, Caroline Cleopatra Chisenga, Gibson Sijumbila, Michelo Simuyandi, Roma Chilengi
INTRODUCTION: Deployment of rotavirus vaccines has contributed to significant declines in diarrheal morbidity and mortality globally. Unfortunately, vaccine performance in low-middle income countries (LMICs) is generally lower than in developed countries. The cause for this has been associated with several host and maternal factors including poor water sanitation and hygiene (WASH) status, which are predominant in LMICs. More recently, environmental enteric dysfunction (EED) has specifically been hypothesized to contribute to poor vaccine uptake and response...
2017: PloS One
https://www.readbyqxmd.com/read/29224174/cost-effectiveness-of-treatments-for-the-management-of-bone-metastases-a-systematic-literature-review
#7
REVIEW
Lazaros Andronis, Ilias Goranitis, Sue Bayliss, Rui Duarte
BACKGROUND: Metastatic cancers occur when cancer cells break away from the primary tumour. One of the most common sites of metastasis is the bone, with several therapeutic options currently available for managing bone metastases. In a resource-constrained environment, policy makers and practitioners need to know which options are cost effective. OBJECTIVE: The aim of this systematic review was to review and appraise published economic evaluations on treatments for the management of bone metastases...
December 9, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/29202477/crispr-cas9-screen-reveals-a-mycn-amplified-neuroblastoma-dependency-on-ezh2
#8
Liying Chen, Gabriela Alexe, Neekesh V Dharia, Linda Ross, Amanda Balboni Iniguez, Amy Saur Conway, Emily Jue Wang, Veronica Veschi, Norris Lam, Jun Qi, W Clay Gustafson, Nicole Nasholm, Francisca Vazquez, Barbara A Weir, Glenn S Cowley, Levi D Ali, Sasha Pantel, Guozhi Jiang, William F Harrington, Yenarae Lee, Amy Goodale, Rakela Lubonja, John M Krill-Burger, Robin M Meyers, Aviad Tsherniak, David E Root, James E Bradner, Todd R Golub, Charles Wm Roberts, William C Hahn, William A Weiss, Carol J Thiele, Kimberly Stegmaier
Pharmacologically difficult targets, such as MYC transcription factors, represent a major challenge in cancer therapy. For the childhood cancer neuroblastoma, amplification of the oncogene MYCN is associated with high-risk disease and poor prognosis. Here, we deployed genome-scale CRISPR-Cas9 screening of MYCN-amplified neuroblastoma and found a preferential dependency on genes encoding the polycomb repressive complex 2 (PRC2) components EZH2, EED, and SUZ12. Genetic and pharmacological suppression of EZH2 inhibited neuroblastoma growth in vitro and in vivo...
January 2, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29195135/urinary-metabolites-of-organophosphate-esters-concentrations-and-age-trends-in-australian-children
#9
Chang He, Leisa-Maree L Toms, Phong Thai, Nele Van den Eede, Xianyu Wang, Yan Li, Christine Baduel, Fiona A Harden, Amy L Heffernan, Peter Hobson, Adrian Covaci, Jochen F Mueller
There is growing concern around the use of organophosphate esters (OPEs) due to their suspected reproductive toxicity, carcinogenicity, and neurotoxicity. OPEs are used as flame retardants and plasticizers, and due to their extensive application in consumer products, are found globally in the indoor environment. Early life exposure to OPEs is an important risk factor for children's health, but poorly understood. To study age and sex trends of OPE exposures in infants and young children, we collected, pooled, and analysed urine samples from children aged 0-5years from Queensland, Australia for 9 parent OPEs and 11 metabolites...
November 28, 2017: Environment International
https://www.readbyqxmd.com/read/29185984/conserved-rna-binding-specificity-of-polycomb-repressive-complex-2-is-achieved-by-dispersed-amino-acid-patches-in-ezh2
#10
Yicheng Long, Ben Bolanos, Lihu Gong, Wei Liu, Karen J Goodrich, Xin Yang, Siming Chen, Anne R Gooding, Karen A Maegley, Ketan S Gajiwala, Alexei Brooun, Thomas R Cech, Xin Liu
Polycomb repressive complex 2 (PRC2) is a key chromatin modifier responsible for methylation of lysine 27 in histone H3. PRC2 has been shown to interact with thousands of RNA species in vivo, but understanding the physiological function of RNA binding has been hampered by the lack of separation-of-function mutants. Here, we use comprehensive mutagenesis and hydrogen deuterium exchange mass spectrometry (HDX-MS) to identify critical residues for RNA interaction in PRC2 core complexes from Homo sapiens and Chaetomium thermophilum, for which crystal structures are known...
November 29, 2017: ELife
https://www.readbyqxmd.com/read/29180909/wearable-cardioverter-defibrillators-for-the-prevention-of-sudden-cardiac-arrest-a-health-technology-assessment-and-patient-focus-group-study
#11
Sabine Ettinger, Michal Stanak, Piotr Szymański, Claudia Wild, Romana Tandara Haček, Darija Erčević, Renata Grenković, Mirjana Huić
Aim: To summarize the evidence on clinical effectiveness and safety of wearable cardioverter defibrillator (WCD) therapy for primary and secondary prevention of sudden cardiac arrest in patients at risk. Methods: We performed a systematic literature search in databases including MEDLINE via OVID, Embase, the Cochrane Library, and CRD (DARE, NHS-EED, HTA). The evidence obtained was summarized according to GRADE methodology. A health technology assessment (HTA) was conducted using the HTA Core Model® for rapid relative effectiveness assessment...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/29178632/different-prostaglandin-f2-%C3%AE-secretion-in-response-to-oxytocin-injection-between-pregnant-and-non-pregnant-cows-effect-of-the-day-of-oxytocin-challenge-test-for-determining-the-difference
#12
Tomoaki Kubo, Kosuke Iga, Naoki Fukuju, Keiichiro Kizaki, Takeshi Osawa, Yoshiaki Izaike, Toru Takahashi
The present study was conducted to determine the difference in plasma prostaglandin F2 α metabolite concentrations following oxytocin (OT) challenge between pregnant and non-pregnant cows. Experiment 1: cows were subjected to the OT challenge test on days 12, 14 or 16 (day of estrus = day 0) with or without prior insemination and plasma 13,14-dihydro-15-keto prostaglandin F2 α (PGFM) concentrations were measured from -30 to 180 min after OT injection. On day 16, the increment of plasma PGFM concentrations in response to OT injection was significantly smaller in pregnant than that in cyclic cows...
November 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29146638/preventing-type-2-diabetes-systematic-review-of-studies-of-cost-effectiveness-of-lifestyle-programmes-and-metformin-with-and-without-screening-for-pre-diabetes
#13
Samantha Roberts, Eleanor Barry, Dawn Craig, Mara Airoldi, Gwyn Bevan, Trisha Greenhalgh
OBJECTIVE: Explore the cost-effectiveness of lifestyle interventions and metformin in reducing subsequent incidence of type 2 diabetes, both alone and in combination with a screening programme to identify high-risk individuals. DESIGN: Systematic review of economic evaluations. DATA SOURCES AND ELIGIBILITY CRITERIA: Database searches (Embase, Medline, PreMedline, NHS EED) and citation tracking identified economic evaluations of lifestyle interventions or metformin alone or in combination with screening programmes in people at high risk of developing diabetes...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29139480/position-paper-the-potential-role-of-optical-biopsy-in-the-study-and-diagnosis-of-environmental-enteric-dysfunction
#14
REVIEW
Alex J Thompson, Michael Hughes, Salzitsa Anastasova, Laurie S Conklin, Tudor Thomas, Cadman Leggett, William A Faubion, Thomas J Miller, Peter Delaney, François Lacombe, Sacha Loiseau, Alexander Meining, Rebecca Richards-Kortum, Guillermo J Tearney, Paul Kelly, Guang-Zhong Yang
Environmental enteric dysfunction (EED) is a disease of the small intestine affecting children and adults in low and middle income countries. Arising as a consequence of repeated infections, gut inflammation results in impaired intestinal absorptive and barrier function, leading to poor nutrient uptake and ultimately to stunting and other developmental limitations. Progress towards new biomarkers and interventions for EED is hampered by the practical and ethical difficulties of cross-validation with the gold standard of biopsy and histology...
December 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29137925/polycomb-repression-complex-2-is-required-for-the-maintenance-of-retinal-progenitor-cells-and-balanced-retinal-differentiation
#15
Naoko Fujimura, Andrea Kuzelova, Anja Ebert, Hynek Strnad, Jitka Lachova, Ondrej Machon, Meinrad Busslinger, Zbynek Kozmik
Polycomb repressive complexes maintain transcriptional repression of genes encoding crucial developmental regulators through chromatin modification. Here we investigated the role of Polycomb repressive complex 2 (PRC2) in retinal development by inactivating its key components Eed and Ezh2. Conditional deletion of Ezh2 resulted in a partial loss of PRC2 function and accelerated differentiation of Müller glial cells. In contrast, inactivation of Eed led to the ablation of PRC2 function at early postnatal stage...
November 12, 2017: Developmental Biology
https://www.readbyqxmd.com/read/29118384/the-genomic-landscape-of-malignant-peripheral-nerve-sheath-tumors-diverse-drivers-of-ras-pathway-activation
#16
Andrew S Brohl, Elliot Kahen, Sean J Yoder, Jamie K Teer, Damon R Reed
Malignant peripheral nerve sheath tumor (MPNST) is an aggressive soft tissue sarcoma. To more fully characterize the genomic landscape of this tumor type, we performed next generation sequencing studies for mutational and copy number analysis. We analyzed whole exome sequencing data from 12 MPNST and SNP arrays for a subset of these. We additionally conducted a literature review of prior next generation sequencing studies in this disease and compared to the current study. We report recurrent mutations in NF1, SUZ12, EED, TP53 and CDKN2A in our study cohort...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29113931/neurobiological-mechanisms-of-chemotherapy-induced-cognitive-impairment-in-a-transgenic-model-of-breast-cancer
#17
Gordon Winocur, Hal Berman, Mary Nguyen, Malcolm A Binns, Mark Henkelman, Matthijs van Eede, Micheline Piquette-Miller, Melanie J Sekeres, J Martin Wojtowicz, Johnson Yu, Haibo Zhang, Ian F Tannock
Animal studies have reinforced clinical reports of cognitive impairment in cancer survivors following chemotherapy but, until now, all pre-clinical research in this area has been conducted on normal rodents. The present study investigated the effects of chemotherapy on cognition and underlying biological mechanisms in the FVB/N-Tg (MMTV-neu) 202 Mul/J mouse, a well-characterized transgenic model of breast cancer that has similarities to the tumorigenesis which occurs in humans. Tumor-bearing and control mice received three weekly injections of a combination of methotrexate + 5-fluorouracil, or an equal volume of saline...
November 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/29110675/lactoferrin-and-lysozyme-to-reduce-environmental-enteric-dysfunction-and-stunting-in-malawian-children-study-protocol-for-a-randomized-controlled-trial
#18
William D Cheng, Karl J Wold, Nicole S Benzoni, Chrissie Thakwalakwa, Kenneth M Maleta, Mark J Manary, Indi Trehan
BACKGROUND: Chronic childhood malnutrition, as manifested by stunted linear growth, remains a persistent barrier to optimal child growth and societal development. Environmental enteric dysfunction (EED) is a significant underlying factor in the causal pathway to stunting, delayed cognitive development, and ultimately morbidity and mortality. Effective therapies against EED and stunting are lacking and further clinical trials are warranted to effectively identify and operationalize interventions...
November 6, 2017: Trials
https://www.readbyqxmd.com/read/29092882/complementary-feeding-with-cowpea-reduces-growth-faltering-in-rural-malawian-infants-a-blind-randomized-controlled-clinical-trial
#19
RANDOMIZED CONTROLLED TRIAL
Kevin B Stephenson, Sophia E Agapova, Oscar Divala, Yankho Kaimila, Kenneth M Maleta, Chrissie Thakwalakwa, M Isabel Ordiz, Indi Trehan, Mark J Manary
Background: Growth faltering is common in rural African children and is attributed to inadequate dietary intake and environmental enteric dysfunction (EED).Objective: We tested the hypothesis that complementary feeding with cowpea or common bean flour would reduce growth faltering and EED in 6-mo-old rural Malawians compared with the control group receiving a corn-soy blend.Design: A prospective, double-blind, randomized controlled clinical trial was conducted in which children received daily feeding for 6 mo (200 kcal/d when 6-9 mo old and 300 kcal/d when 10-12 mo old)...
December 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29068068/late-stage-nodular-erythema-elevatum-diutinum-mimicking-sclerotic-fibroma
#20
Kevin Y Shi, Travis Vandergriff
Erythema elevatum diutinum (EED) is a rare, cutaneous vasculitis of uncertain origin. EED can present clinically as chronic bilateral, symmetrical, periarticular papules, plaques and nodules. We report here an unusual case of EED presenting as multiple, densely fibrosing nodules on the feet of a 60-year-old human immunodeficiency virus positive woman. The initial evaluation of the patient was complicated by the strong histologic resemblance of multiple lesions to sclerotic fibroma, a cutaneous manifestation of Cowden disease...
January 2018: Journal of Cutaneous Pathology
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