Defective erythropoiesis caused by mutations of the thyroid hormone receptor α gene

Park, Sunmi,Han, Cho Rong,Park, Jeong Won,Zhao, Li,Zhu, Xuguang,Willingham, Mark,Bodine, David M.,Cheng, Sheue-yann,Grimes, H. Leighton Public Library of Science 2017 PLoS genetics Vol.13 No.9

<▼1><P>Patients with mutations of the <I>THRA</I> gene exhibit classical features of hypothyroidism, including erythroid disorders. We previously created a mutant mouse expressing a mutated TRα1 (denoted as PV; <I>Thra1</I><SUP>PV/+</SUP> mouse) that faithfully reproduces the classical hypothyroidism seen in patients. Using <I>Thra1</I><SUP>PV/+</SUP> mice, we explored how the TRα1PV mutant acted to cause abnormalities in erythropoiesis. <I>Thra1</I><SUP>PV/+</SUP> mice exhibited abnormal red blood cell indices similarly as reported for patients. The total bone marrow cells and erythrocytic progenitors were markedly reduced in the bone marrow of <I>Thra1</I><SUP>PV/+</SUP> mice. <I>In vitro</I> terminal differentiation assays showed a significant reduction of mature erythrocytes in <I>Thra1</I><SUP>PV/+</SUP> mice. In wild-type mice, the clonogenic potential of progenitors in the erythrocytic lineage was stimulated by thyroid hormone (T3), suggesting that T3 could directly accelerate the differentiation of progenitors to mature erythrocytes. Analysis of gene expression profiles showed that the key regulator of erythropoiesis, the <I>Gata-1</I> gene, and its regulated genes, such as the <I>Klf1</I>, <I>β-globin</I>, <I>dematin</I> genes, <I>CAII</I>, <I>band3 and eALAS</I> genes, involved in the maturation of erythrocytes, was decreased in the bone marrow cells of <I>Thra1</I><SUP>PV/+</SUP> mice. We further elucidated that the <I>Gata-1</I> gene was a T3-directly regulated gene and that TRα1PV could impair erythropoiesis via repression of the <I>Gata-1</I> gene and its regulated genes. These results provide new insights into how TRα1 mutants acted to cause erythroid abnormalities in patients with mutations of the <I>THRA</I> gene. Importantly, the <I>Thra1</I><SUP>PV/+</SUP> mouse could serve as a preclinical mouse model to identify novel molecular targets for treatment of erythroid disorders.</P></▼1><▼2><P><B>Author summary</B></P><P>Patients with mutations of the <I>THRA</I> gene exhibit erythroid disorders. The molecular pathogenesis underlying erythroid abnormalities is poorly understood. In <I>Thra1</I><SUP>PV/+</SUP> mice expressing a dominant negative mutant TRα1PV, we found abnormal red blood cell indices similar to patients. Total bone marrow cells, the clonogenic potential of erythrocytic progenitors, and terminal differentiation of erythrocytes were markedly decreased in <I>Thra1</I><SUP>PV/+</SUP> mice. We elucidated that <I>Gata-1</I>, a key erythroid gene, was directly positively regulated by TRα1. The erythroid defects in <I>Thra1</I><SUP>PV/+</SUP> mice were due, at least partly, to the TRα1PV-mediated suppression of the <I>Gata-1</I> gene and its down-stream target genes. Over-expression of <I>Gata-1</I> rescued impaired terminal differentiation. Our studies elucidated molecular mechanisms by which TRα1 mutants caused erythroid disorders in patients. The present study suggests that therapies aimed at GATA1 could be tested as a potential target in treating erythroid abnormalities in patients.</P></▼2>

시리즈 E : 전부가 아니면 전무 - 영재학생들의 문제해결 -

박정숙,김소연,오혜미,( Marja Van Den Heuvel Panhuizen ),( Conny Bodin Baarends ) 한국수학교육학회 2004 수학교육논문집 Vol.18 No.3

Phylogenetic Inferences and the Evolution of Plastid DNA in Campynemataceae and the Mycoheterotrophic Corsia dispar D.L Jones & B. Gray (Corsiaceae)

Bodin, Sarah Silvia,Kim, Jung Sung,Kim, Joo-Hwan Springer-Verlag 2016 Plant molecular biology reporter Vol.34 No.1

<P>The phylogenetic positions of the families Campynemataceae and Corsiaceae within the order Liliales remains unclear. To date, molecular data from the plastid genome of Corsiaceae has been obtained exclusively from Arachnitis, for which alignment and phylogenetic inference has proved difficult. The extent of gene conservation among mycoheterotrophic species within Corsiaceae remains unknown. To clarify the phylogenetic position of Campynemataceae and Corsiaceae within Liliales, functional plastid-coding genes of species representing both families have been analyzed. Examination of two phylogenetic data sets of plastid genes employing parsimony, maximum-likelihood, and Bayesian inference methods strongly supported both families forming a basal clade to the remaining taxa of Liliales. The first data set consists of five functional plastid-encoded genes (matK, rps7, rps2, rps19, and rpl2) sequenced from Corsia dispar (Corsiaceae). The data set included 31 species representing all families within Liliales, as well as selected orders that are related closely to Liliales (10 outgroup species from Asparagales, Dioscoreales, and Pandanales). The second phylogenetic analysis was based on 75 plastid genes. This data set included 18 species from Liliales, representing major clades within the order, and 10 outgroup species from Asparagales, Dioscoreales, and Pandanales. In this latter data set, Campynemataceae was represented by 60 plastid-encoded genes sequenced from herbarium material of Campynema lineare. A large proportion of the plastid genome of C. dispar was also sequenced and compared to the plastid genomes of photosynthetic plants within Liliales and mycoheterotrophic plants within Asparagales to explore plastid genome reduction. The plastid genome of C. dispar is in the advanced stages of reduction, which signifies its high dependency onmycorrhizal fungi and is suggestive of a loss in photosynthetic ability. Functional plastid genes found in C. dispar may be applicable to other species in Corsiaceae, which will provide a basis for in-depth molecular analyses of interspecies relationships within the family, once molecular data from other members become available.</P>

Accuracy of genomic-polygenic estimated breeding value for milk yield and fat yield in the Thai multibreed dairy population with five single nucleotide polymorphism sets

Bodin Wongpom,Skorn Koonawootrittriron,Mauricio A. Elzo,Thanathip Suwanasopee,Danai Jattawa 아세아·태평양축산학회 2019 Animal Bioscience Vol.32 No.9

Objective: The objectives were to compare variance components, genetic parameters, prediction accuracies, and genomic-polygenic estimated breeding value (EBV) rankings for milk yield (MY) and fat yield (FY) in the Thai multibreed dairy population using five single nucleotide polymorphism (SNP) sets from GeneSeek GGP80K chip. Methods: The dataset contained monthly MY and FY of 8,361 first-lactation cows from 810 farms. Variance components, genetic parameters, and EBV for five SNP sets from the GeneSeek GGP80K chip were obtained using a 2-trait single-step average-information restricted maximum likelihood procedure. The SNP sets were the complete SNP set (all available SNP; SNP100), top 75% set (SNP75), top 50% set (SNP50), top 25% set (SNP25), and top 5% set (SNP5). The 2-trait models included herd-year-season, heterozygosity and age at first calving as fixed effects, and animal additive genetic and residual as random effects. Results: The estimates of additive genetic variances for MY and FY from SNP subsets were mostly higher than those of the complete set. The SNP25 MY and FY heritability estimates (0.276 and 0.183) were higher than those from SNP75 (0.265 and 0.168), SNP50 (0.275 and 0.179), SNP5 (0.231 and 0.169), and SNP100 (0.251and 0.159). The SNP25 EBV accuracies for MY and FY (39.76% and 33.82%) were higher than for SNP75 (35.01% and 32.60%), SNP50 (39.64% and 33.38%), SNP5 (38.61% and 29.70%), and SNP100 (34.43% and 31.61%). All rank correlations between SNP100 and SNP subsets were above 0.98 for both traits, except for SNP100 and SNP5 (0.93 for MY; 0.92 for FY). Conclusion: The high SNP25 estimates of genetic variances, heritabilities, EBV accuracies, and rank correlations between SNP100 and SNP25 for MY and FY indicated that genotyping animals with SNP25 dedicated chip would be a suitable to maintain genotyping costs low while speeding up genetic progress for MY and FY in the Thai dairy population.

Complete Chloroplast Genome of Chionographis japonica (Willd.) Maxim. (Melanthiaceae): Comparative Genomics and Evaluation of Universal Primers for Liliales

Bodin, Sarah S.,Kim, Jung Sung,Kim, Joo-Hwan Springer-Verlag 2013 Plant molecular biology reporter Vol.31 No.6

Ability of a modified Sequential Organ Failure Assessment score to predict mortality among sepsis patients in a resource-limited setting

Bodin Khwannimit,Rungsun Bhurayanontachai,Veerapong Vattanavanit 대한중환자의학회 2022 Acute and Critical Care Vol.37 No.3

Background Some variables of the Sequential Organ Failure Assessment (SOFA) score are not routinely measured in sepsis patients, especially in countries with limited resources. Therefore, this study was conducted to evaluate the accuracy of the modified SOFA (mSOFA) and compared its ability to predict mortality in sepsis patients to that of the original SOFA score. Methods Sepsis patients admitted to the medical intensive care unit of Songklanagarind Hospital between 2011 and 2018 were retrospectively analyzed. The primary outcome was all-cause in-hospital mortality. Results A total of 1,522 sepsis patients were enrolled. The mean SOFA and mSOFA scores were 9.7±4.3 and 8.8±3.9, respectively. The discrimination of the mSOFA score was significantly higher than that of the SOFA score for all-cause in-hospital mortality(area under the receiver operating characteristic curve, 0.891 [95% confidence interval, 0.875–0.907] vs. 0.879 [0.862–0.896]; P<0.001), all-cause intensive care unit (ICU) mortality (0.880 [0.863–0.898] vs. 0.871 [0.853–0.889], P=0.01) and all-cause 28-day mortality (0.887 [0.871–0.904] vs. 0.874 [0.856–0.892], P<0.001). The ability of mSOFA score to predict all-cause in-hospital and 28-day mortality was higher than that of the SOFA score within the subgroups of sepsis according to age, sepsis severity and serum lactate levels. The mSOFA score was demonstrated to have a performance similar to the original SOFA score regarding the prediction of mortality in sepsis patients with cirrhosis or hepatic dysfunction. Conclusions The mSOFA score was a good alternative to the original SOFA core in predicting mortality among sepsis patients admitted to the ICU.

Journal of the Korea Society of Mathematical Education Series D : All or Nothing: Problem Solving High Achievers in Mathematics

( Van Den Heuvel Panhuizen ),( Bodin Baarends ) 한국수학교육학회 2004 수학교육연구 Vol.8 No.3

Relation between total degradation of steel concrete bond and degree of corrosion of RC beams experimental and computational studies

Mickael Dekoster,Olivier Maurel,Francois Buyle-Bodin 한국계산역학회 2005 Computers and Concrete, An International Journal Vol.2 No.1

This paper presents a study on the effects of localized steel-concrete bond degradation on the flexural behaviour of RC beams. A finite element analysis is undertaken to complete the experimental analysis. The first part deals with an experimental study on beams where bond was removed by using plastic tube at different locations and for various lengths. The flexural behaviour was studied at global scale (load-deflection) and local scale (moment-curvature). The second part, a numerical study using a simplified special finite element (rust element) modelling the rust layer occurring between reinforcement and concrete with corrosion was conducted in order to find the relation between the degree of corrosion and the degradation of the steel-concrete bond. The computed value of the corrosion degree corresponding to the total degradation of bond has been used in a second time to model the tests, in order to evaluate the influence of the loss of bond, the steel cross section reduction, and the combination of both. The results enable to evaluate the influence of the different corrosion effects on the flexural behaviour,according to the length and the location of the corroded zone.

Multiple Exposures and Coexposures to Occupational Hazards Among Agricultural Workers: A Systematic Review of Observational Studies

Nguyen, Thi-Hai-Yen,Bertin, Melanie,Bodin, Julie,Fouquet, Natacha,Bonvallot, Nathalie,Roquelaure, Yves Occupational Safety and Health Research Institute 2018 Safety and health at work Vol.9 No.3

Background: Workers may be exposed to various types of occupational hazards at the same time, potentially increasing the risk of adverse health outcomes. The aim of this review was to analyze the effects of multiple occupational exposures and coexposures to chemical, biomechanical, and physical hazards on adverse health outcomes among agricultural workers. Methods: Articles published in English between 1990 and 2015 were identified using five popular databases and two complementary sources. The quality of the included publications was assessed using the methodology developed by the Effective Public Health Practice Project assessment tool for quantitative studies. Results: Fifteen articles were included in the review. Multiple chemical exposures were significantly associated with an increased risk of respiratory diseases, cancer, and DNA and cytogenetic damage. Multiple physical exposures seemed to increase the risk of hearing loss, whereas coexposures to physical and biomechanical hazards were associated with an increased risk of musculoskeletal disorders among agricultural workers. Conclusion: Few studies have explored the impact of multiple occupational exposures on the health of agricultural workers. A very limited number of studies have investigated the effect of coexposures among biomechanical, physical, and chemical hazards on occupational health, which indicates a need for further research in this area.

Empowering The Eclipse Arrowhead Framework with a Digital Twin as a Proxy Service

Abdullah Aziz,Olov Schelen,Ulf Bodin,Lukas Romer,Sven Erik Jeroschewski,Johannes Kristan 제어로봇시스템학회 2022 제어로봇시스템학회 국제학술대회 논문집 Vol.2022 No.11

Eclipse Arrowhead is an open-source framework for industrial automation based on serviceoriented principles. It allows the creation of a highly flexible System of Systems (SoS) by defining local clouds for connecting application systems running on industrial cyber-physical systems (ICPSs). However, in an ICPS context, resource constraints and battery-powered devices are facing issues such as high energy consumption, poor service availability, and low-security capabilities. The concept of Digital Twins (DTs) as a proxy (DTaaP) has been defined to address these CPS challenges by providing valuable properties such as energy efficiency, availability, and security. In this paper, we propose a solution to empower the Eclipse Arrowhead Framework (EAF) with DTaaP. Specifically, the proposed solution introduces AHDitto, an Arrowhead-compliant supporting core system, enabling EAF to achieve three DTaaP properties by integrating Eclipse Ditto with EAF.