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https://www.readbyqxmd.com/read/29146883/a-landscape-of-germline-mutations-in-a-cohort-of-inherited-bone-marrow-failure-patients
#1
Olivier Bluteau, Marie Sebert, Thierry Leblanc, Régis Peffault de Latour, Samuel Quentin, Elodie Lainey, Lucie Hernandez, Jean-Hugues Dalle, Flore Sicre de Fontbrune, Etienne Lengline, Raphael Itzykson, Emmanuelle Clappier, Nicolas Boissel, Naddia Vasquez, Mélanie Da Costa, Julien Masliah-Planchon, Wendy Cuccuini, Anna Raimbault, Louis De Jaegere, Lionel Adès, Pierre Fenaux, Sébastien Maury, Claudine Schmitt, Marc Muller, Carine Domenech, Nicolas Blin, Bénédicte Bruno, Isabelle Pellier, Mathilde Hunault, Stéphane Blanche, Arnaud Petit, Guy Leverger, Gérard Michel, Yves Bertrand, André Baruchel, Gérard Socié, Jean Soulier
Bone marrow failure (BMF) in children and young adults is often suspected to be inherited, but in many cases diagnosis remains uncertain. We studied a cohort of 179 patients (from 173 families) with BMF of suspected inherited origin but unresolved diagnosis after medical evaluation and Fanconi anemia exclusion. All patients had cytopenias, and 12.0% presented ≥5% bone marrow blast cells. Median age at genetic evaluation was 11 years; 20.7% of patients were aged ≤2 years and 36.9% were ≥18 years. We analyzed genomic DNA from skin fibroblasts using whole-exome sequencing, and were able to assign a causal or likely causal germline mutation in 86 patients (48...
November 16, 2017: Blood
https://www.readbyqxmd.com/read/29143488/isolation-and-characterization-of-novel-goose-parvovirus-related-virus-reveal-the-evolution-of-waterfowl-parvovirus
#2
P Li, S Lin, R Zhang, J Chen, D Sun, J Lan, S Song, Z Xie, S Jiang
Short beak and dwarfism syndrome (SBDS) has been constantly breaking out in China since 2015. It is caused by a novel goose parvovirus-related virus (NGPV) and can severely restrict the growth of ducks. In this study, seven NGPV stains were isolated from different regions in China between 2015 and 2016. To better understand the correlation between NGPV and goose parvovirus (GPV), we conducted complete genome sequencing and a comprehensive analysis of the NGPV genome. The phylogenetic and alignment analysis showed that NGPV is a branch of GPV, sharing 92...
November 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29103688/pathogenicity-of-pekin-duck-and-goose-origin-parvoviruses-in-pekin-ducklings
#3
Kang Ning, Minghang Wang, Shenghua Qu, Junfeng Lv, Lixin Yang, Dabing Zhang
Goose parvovirus (GPV) usually affects goslings and Muscovy ducks but not Pekin ducks. Earlier works showed that a variant GPV can cause short beak and dwarfism syndrome (SBDS) in Pekin ducks. Here, we investigated the pathogenicity of a variant GPV of Pekin duck-origin (JS1) and a classical GPV of goose-origin (H) in Pekin ducklings. Following intramuscular infection at two days of age, both JS1 and H strains influenced weight gain and development of beaks and bones of wings and legs, and caused microscopic lesions of internal organs of ducks...
October 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29025585/genetic-gastric-cancer-susceptibility-in-the-international-clinical-cancer-genomics-community-research-network
#4
Thomas Slavin, Susan L Neuhausen, Christina Rybak, Ilana Solomon, Bita Nehoray, Kathleen Blazer, Mariana Niell-Swiller, Aaron W Adamson, Yate-Ching Yuan, Kai Yang, Sharon Sand, Danielle Castillo, Josef Herzog, Xiwei Wu, Shu Tao, Tanya Chavez, Yanghee Woo, Joseph Chao, Pamela Mora, Darling Horcasitas, Jeffrey Weitzel
Few susceptibility genes for gastric cancer have been identified. We sought to identify germline susceptibility genes from participants with gastric cancer from an international hereditary cancer research network. Adults with gastric cancer of any histology, and with a germline DNA sample (n = 51), were retrospectively selected. For those without previously identified germline mutations (n = 43), sequencing was performed for 706 candidate genes. Twenty pathogenic or likely pathogenic variants were identified among 18 participants...
October 2017: Cancer Genetics
https://www.readbyqxmd.com/read/28972538/mutations-in-signal-recognition-particle-srp54-cause-syndromic-neutropenia-with-shwachman-diamond-like-features
#5
Raphael Carapito, Martina Konantz, Catherine Paillard, Zhichao Miao, Angélique Pichot, Magalie S Leduc, Yaping Yang, Katie L Bergstrom, Donald H Mahoney, Deborah L Shardy, Ghada Alsaleh, Lydie Naegely, Aline Kolmer, Nicodème Paul, Antoine Hanauer, Véronique Rolli, Joëlle S Müller, Elisa Alghisi, Loïc Sauteur, Cécile Macquin, Aurore Morlon, Consuelo Sebastia Sancho, Patrizia Amati-Bonneau, Vincent Procaccio, Anne-Laure Mosca-Boidron, Nathalie Marle, Naël Osmani, Olivier Lefebvre, Jacky G Goetz, Sule Unal, Nurten A Akarsu, Mirjana Radosavljevic, Marie-Pierre Chenard, Fanny Rialland, Audrey Grain, Marie-Christine Béné, Marion Eveillard, Marie Vincent, Julien Guy, Laurence Faivre, Christel Thauvin-Robinet, Julien Thevenon, Kasiani Myers, Mark D Fleming, Akiko Shimamura, Elodie Bottollier-Lemallaz, Eric Westhof, Claudia Lengerke, Bertrand Isidor, Seiamak Bahram
Shwachman-Diamond syndrome (SDS) (OMIM #260400) is a rare inherited bone marrow failure syndrome (IBMFS) that is primarily characterized by neutropenia and exocrine pancreatic insufficiency. Seventy-five to ninety percent of patients have compound heterozygous loss-of-function mutations in the Shwachman-Bodian-Diamond syndrome (sbds) gene. Using trio whole-exome sequencing (WES) in an sbds-negative SDS family and candidate gene sequencing in additional SBDS-negative SDS cases or molecularly undiagnosed IBMFS cases, we identified 3 independent patients, each of whom carried a de novo missense variant in srp54 (encoding signal recognition particle 54 kDa)...
October 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28955752/preparation-and-characterization-of-cockle-shell-aragonite-nanocomposite-porous-3d-scaffolds-for-bone-repair
#6
Saffanah Khuder Mahmood, Md Zuki Abu Bakar Zakaria, Intan Shameha Binti Abdul Razak, Loqman Mohamed Yusof, Alhaji Zubair Jaji, Isa Tijani, Nahidah Ibrahim Hammadi
The demands for applicable tissue-engineered scaffolds that can be used to repair load-bearing segmental bone defects (SBDs) is vital and in increasing demand. In this study, seven different combinations of 3 dimensional (3D) novel nanocomposite porous structured scaffolds were fabricated to rebuild SBDs using an extraordinary blend of cockle shells (CaCo3) nanoparticles (CCN), gelatin, dextran and dextrin to structure an ideal bone scaffold with adequate degradation rate using the Freeze Drying Method (FDM) and labeled as 5211, 5400, 6211, 6300, 7101, 7200 and 8100...
July 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28951604/identification-of-a-novel-class-of-small-compounds-with-anti-tuberculosis-activity-by-in-silico-structure-based-drug-screening
#7
Junichi Taira, Koji Morita, Shotaro Kawashima, Tomohiro Umei, Hiroki Baba, Taira Maruoka, Hideyuki Komatsu, Hiroshi Sakamoto, James C Sacchettini, Shunsuke Aoki
The enzymes responsible for biotin biosynthesis in mycobacteria have been considered as potential drug targets owing to the important role in infection and cell survival that the biotin synthetic pathway plays in Mycobacterium tuberculosis. Among the enzymes that comprise mycobacterium biotin biosynthesis systems, 7,8-diaminopelargonic acid synthase (DAPAS) plays an essential role during the stationary phase in bacterial growth. In this study, compounds that inhibit mycobacterial DAPAS were screened in the virtual chemical library using an in silico structure-based drug screening (SBDS) technique, and the antimycobacterial activity of the selected compounds was validated experimentally...
November 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28942353/molecular-basis-of-the-human-ribosomopathy-shwachman-diamond-syndrome
#8
REVIEW
Alan J Warren
Mutations that target the ubiquitous process of ribosome assembly paradoxically cause diverse tissue-specific disorders (ribosomopathies) that are often associated with an increased risk of cancer. Ribosomes are the essential macromolecular machines that read the genetic code in all cells in all kingdoms of life. Following pre-assembly in the nucleus, precursors of the large 60S and small 40S ribosomal subunits are exported to the cytoplasm where the final steps in maturation are completed. Here, I review the recent insights into the conserved mechanisms of ribosome assembly that have come from functional characterisation of the genes mutated in human ribosomopathies...
September 6, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28918072/development-of-a-duplex-semi-nested-pcr-assay-for-detection-of-classical-goose-parvovirus-and-novel-goose-parvovirus-related-virus-in-sick-or-dead-ducks-with-short-beak-and-dwarfism-syndrome
#9
Pengfei Li, Ruihua Zhang, Junhao Chen, Dapeng Sun, Jingjing Lan, Shaoli Lin, Shasha Song, Zhijing Xie, Shijin Jiang
Duck short beak and dwarfism syndrome (SBDS) is an emerging infectious disease caused by a novel goose parvovirus-related virus (NGPV) in China. Until now, it remains uncertain whether the Cherry Valley ducks and mule ducks with SBDS are co-infected with classical goose parvovirus (GPV) and NGPV. In this study, a duplex semi-nested PCR assay with high specificity and sensitivity was developed for detection of the two viruses. Using the duplex PCR assay, NGPV was tested positive in all the 15 duck flocks with SBDS, whereas classical GPV was not detected in all the 133 sick and dead ducks collected from East China...
November 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28843902/relationship-between-chronobiological-thyrotropin-and-prolactin-responses-to-protirelin-trh-and-suicidal-behavior-in-depressed-patients
#10
Fabrice Duval, Marie-Claude Mokrani, Alexis Erb, Felix Gonzalez Opera, Cécile Calleja, Véronique Paris
BACKGROUND: So far, investigations of the relationships between suicidality and the activity of the thyrotropic and lactotropic axes are scarce and have yielded conflicting results. METHODS: We studied the thyrotropin (TSH) and prolactin (PRL) responses to 0800h and 2300h protirelin (TRH) stimulation tests, carried out on the same day, in 122 euthyroid DSM-5 major depressed inpatients with suicidal behavior disorder (SBD) (either current [n=71], or in early remission [n=51]); and 50 healthy hospitalized controls...
July 28, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28795344/backbone-and-side-chain-assignments-for-a-novel-cbm69-starch-binding-domain-amyp-sbd
#11
Xinxin Li, Jigang Yu, Jiahai Zhang, Hongbin Sun, Xuecheng Zhang
Starch binding domains (SBDs) are important for the functions of glycoside hydrolysis enzymes such as α-amylases, they have great application potential in biotechnology and industries. AmyP is a newly identified α-amylase belonging to a new subfamily 37 of glycoside hydrolysis enzyme family 13. AmyP shows preferential degradation to soluble starch, in which its C-terminal starch binding domain, AmyP-SBD, plays an important role. AmyP-SBD shares very low sequence similarity with other biochemically characterized SBDs and was assigned to a new carbohydrate binding module family CBM69...
October 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28715672/genomic-and-pathogenic-analysis-of-a-muscovy-duck-parvovirus-strain-causing-short-beak-and-dwarfism-syndrome-without-tongue-protrusion
#12
Qiuling Fu, Yu Huang, Chunhe Wan, Guanghua Fu, Baomin Qi, Longfei Cheng, Shaohua Shi, Hongmei Chen, Rongchang Liu, Zhenhai Chen
In 2008, clinical cases of short beak and dwarfism syndrome (SBDS) caused by Muscovy duck parvovirus (MDPV) infection were found in mule duck and Taiwan white duck farms in Fujian, China. A MDPV LH strain causing duck SBDS without tongue protrusion was isolated in this study. Phylogenetic analysis show that the MDPV LH strain was clustered together with other MDPV strains, but divergent from GPV isolates. Two major fragment deletions were found in the inverted terminal repeats (ITR) of MDPV LH similar to the ones in the ITR of MDPV GX5, YY and SAAS-SHNH strains...
July 12, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28622305/the-thrombopoietin-mpl-axis-is-activated-in-the-gata1-low-mouse-model-of-myelofibrosis-and-is-associated-with-a-defective-rps14-signature
#13
M Zingariello, L Sancillo, F Martelli, F Ciaffoni, M Marra, L Varricchio, R A Rana, C Zhao, J D Crispino, A R Migliaccio
Myelofibrosis (MF) is characterized by hyperactivation of thrombopoietin (TPO) signaling, which induces a RPS14 deficiency that de-regulates GATA1 in megakaryocytes by hampering its mRNA translation. As mice carrying the hypomorphic Gata1(low) mutation, which reduces the levels of Gata1 mRNA in megakaryocytes, develop MF, we investigated whether the TPO axis is hyperactive in this model. Gata1(low) mice contained two times more Tpo mRNA in liver and TPO in plasma than wild-type littermates. Furthermore, Gata1(low) LSKs expressed levels of Mpl mRNA (five times greater than normal) and protein (two times lower than normal) similar to those expressed by LSKs from TPO-treated wild-type mice...
June 16, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28587961/expression-and-comparative-characterization-of-complete-and-c-terminally-truncated-forms-of-saccharifying-%C3%AE-amylase-from-lactobacillus-plantarum-s21
#14
Apinun Kanpiengjai, Thu-Ha Nguyen, Dietmar Haltrich, Chartchai Khanongnuch
Lactobacillus plantarum S21 α-amylase possesses 475 amino acids at the C-terminal region identified as the starch-binding domain (SBD) and has been previously reported to play a role in raw starch degradation. To understand the specific roles of this SBD, cloning and expression of the complete (AmyL9) and C-terminally truncated (AmyL9ΔSBD) forms of α-amylase were conducted for enzyme purification and comparative characterization. AmyL9 and AmyL9ΔSBD were overproduced in Escherichia coli at approximately 10- and 20-times increased values of volumetric productivity when compared to α-amylase produced by the wild type, respectively...
October 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28559515/in-silico-structure-based-drug-screening-of-novel-antimycobacterial-pharmacophores-by-dock-gold-tandem-screening
#15
Junichi Taira, Takashi Ito, Hitomi Nakatani, Tomohiro Umei, Hiroki Baba, Shotaro Kawashima, Taira Maruoka, Hideyuki Komatsu, Hiroshi Sakamoto, Shunsuke Aoki
BACKGROUND: Enzymes responsible for cell wall development in Mycobacterium tuberculosis are considered as potential targets of anti-tuberculosis (TB) agents. Mycobacterial cyclopropane mycolic acid synthase 1 (CmaA1) is essential for mycobacterial survival because of its critical role in synthesizing mycolic acids. MATERIALS AND METHODS: We screened compounds that were capable of interacting with the mycobacterial CmaA1 active site using a virtual compound library with an in silico structure-based drug screening (SBDS)...
April 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28509441/the-greek-registry-of-shwachman-diamond-syndrome-molecular-and-clinical-data
#16
Polyxeni Delaporta, Christalena Sofocleous, Marina Economou, Alexandros Makis, Stavroula Kostaridou, Antonis Kattamis
This study presents the clinical phenotype and molecular analysis findings from 11 patients recorded in the Greek Shwachman-Diamond syndrome (SDS) Registry. The most severely affected patient in our registry was diagnosed at birth and is the first patient reported to require bone marrow transplantation so early in life. Severe psoriasis, a feature not previously reported in SDS, was observed in one patient. Mutations in the Shwachman-Bodian-Diamond syndrome gene (SBDS) were found in all patients. Cytogenetic analyses revealed clonal abnormalities, one novel, in two patients...
November 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28341220/national-academy-of-medicine-social-and-behavioral-measures-associations-with-self-reported-health
#17
Aric A Prather, Laura M Gottlieb, Nunzia B Giuse, Taneya Y Koonce, Sheila V Kusnoor, William W Stead, Nancy E Adler
INTRODUCTION: Social and behavioral factors play important roles in physical and mental health; however, they are not routinely assessed in the healthcare system. A brief panel of measures of social and behavioral determinants of health (SBDs) were recommended in a National Academy of Medicine report for use in electronic health records. Initial testing of the panel established feasibility of use and robustness of the measures. This study evaluates their convergent and divergent validity in relation to self-reported physical and mental health and social desirability bias...
October 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28338038/school-based-dental-sealant-programmes-may-be-effective-in-caries-prevention
#18
Tarek Himida, Ucheka Promise
DesignSplit-mouth randomised controlled clinical trial.InterventionSchool-based dental sealant (SBDS) programme. The study population that was selected from 67-year-old pupils of 16 elementary schools in areas of low socioeconomic status within Nice, France. Children with first permanent molar pairs sufficiently erupted for sealing with no caries (ICDAS [International Caries Detection and Assessment System] 0) or initial enamel lesions (ICDAS 1-2) were included. Children were randomised to either the intervention group (light polymerised resin-based sealant with fluoride) or the control group (no treatment)...
March 2017: Evidence-based Dentistry
https://www.readbyqxmd.com/read/28331068/mutations-in-efl1-an-sbds-partner-are-associated-with-infantile-pancytopenia-exocrine-pancreatic-insufficiency-and-skeletal-anomalies-in-a-shwachman-diamond-like-syndrome
#19
Polina Stepensky, Montserrat Chacón-Flores, Katherine H Kim, Omar Abuzaitoun, Arnulfo Bautista-Santos, Natalia Simanovsky, Dritan Siliqi, Davide Altamura, Alfonso Méndez-Godoy, Abril Gijsbers, Adeeb Naser Eddin, Talia Dor, Joel Charrow, Nuria Sánchez-Puig, Orly Elpeleg
BACKGROUND: For the final step of the maturation of the ribosome, the nascent 40S and 60S subunits are exported from the nucleus to the cell cytoplasm. To prevent premature association of these ribosomal subunits, eukaryotic initiation factor 6 (eIF6) binds the 60S subunit within the nucleus. Its release in the cytoplasm requires the interaction of EFL1 and SDBS proteins. In Shwachman-Diamond syndrome (SDS), a defective SDBS protein prevents eIF6 eviction, inhibiting its recycle to the nucleus and subsequent formation of the active 80S ribosome...
March 22, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28212192/genetic-control-of-erythropoiesis
#20
REVIEW
Laxminath Tumburu, Swee Lay Thein
PURPOSE OF REVIEW: The discovery of several genetic variants associated with erythroid traits and subsequent elucidation of their functional mechanisms are exemplars of the power of the new genetic and genomic technology. The present review highlights findings from recent genetic studies related to the control of erythropoiesis and dyserythropoiesis, and fetal hemoglobin, an erythroid-related trait. RECENT FINDINGS: Identification of the genetic modulators of erythropoiesis involved two approaches: genome-wide association studies (GWASs) using single nucleotide polymorphism (SNP) arrays that revealed the common genetic variants associated with erythroid phenotypes (hemoglobin, red cell count, MCV, MCH) and fetal hemoglobin; and massive parallel sequencing such as whole genome sequencing (WGS) and whole exome sequencing (WES) that led to the discovery of the rarer variants (GFI1B, SBDS, RPS19, PKLR, EPO, EPOR, KLF1, GATA1)...
May 2017: Current Opinion in Hematology
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