384 research outputs found
Description of polar orbiting satellite data available during the fall 1991 and spring 1992 ice station LEADEX deployments
October 1991.Includes bibliographical references.Research supported by the National Oceanic and Atmospheric Administration under Cooperative Agreement NA 90RAH-00077
De norske fjelde - rodløse realiteter
I GeologiskNyt 5/2007 opsummerede vi et væld af oplysninger, der viser, at de norske fjelde har været udsat for vertikale bevægelser i kilometer-skala i Kænozoikum, og at fjeldene først har nået deres nuværende højder i Neogen. Søren B. Nielsen (SBN) kommenterer i GeologiskNyt 1/2008 vores indlæg, men kommer desværre ikke med yderligere argumenter for sin hypotese om, at de norske fjelde er resterne af den bjergkæde, der blev dannet under den kaledonske kollision mellem Baltica og Grønland for mere end 400 millioner år siden. Derimod skaber SBN usikkerhed om simple kendsgerninger, der er af afgørende betydning for vurderingen af de norske fjeldes alder og struktur
Hvad er en god vårbyg til økologisk jordbrug?
Gennemgang af hvad en god vårbygsort er for økologisk jordbrug. Sortsvalg, udbytte, sortsblandinger, næringsstofoptagelse, ukrudtskonkurrenceevne, sygdomsrobusthed, molekulære markører
Induced pluripotent stem cells (iPSCs) derived from af pre-symptomatic carrier of a R406W mutation in microtubule-associated protein tau (MAPT) causing frontotemporal dementia
AbstractSkin fibroblasts were obtained from a 28-year-old pre-symptomatic woman carrying a R406W mutation in microtubule-associated protein tau (MAPT), known to cause frontotemporal dementia. Induced pluripotent stem cell (iPSCs) were established by electroporation with episomal plasmids containing hOCT4, hSOX2, hKLF2, hL-MYC, hLIN-28 and shP53. iPSCs were free of genomically integrated reprogramming genes, contained the expected c.1216C>T substitution in exon 13 of the MAPT gene, expressed the expected pluripotency markers, displayed in vitro differentiation potential to the three germ layers and had normal karyotype. The iPSC line may be useful for studying hereditary frontotemporal dementia and TAU pathology in vitro
Induced pluripotent stem cells (iPSCs) derived from a patient with frontotemporal dementia caused by a P301L mutation in microtubule-associated protein tau (MAPT)
AbstractSkin fibroblasts were obtained from a 57-year-old woman diagnosed with frontotemporal dementia. The disease is caused by a P301L mutation in microtubule-associated protein tau (MAPT). Induced pluripotent stem cells (iPSCs) were established by electroporation with episomal plasmids containing hOCT4, hSOX2, hKLF2, hL-MYC, hLIN-28 and shP53. iPSCs were free of genomically integrated reprogramming genes, contained the expected c.902C>T substitution in exon 10 of the MAPT gene, expressed the expected pluripotency markers, displayed in vitro differentiation potential to the three germ layers and had normal karyotype. The iPSC line may be useful for studying hereditary frontotemporal dementia and TAU pathology in vitro
Expression of the Insulin-like Growth Factor system in first and second trimester human embryonic and fetal gonads
Financial Support: This work was supported by The Medical Research Council [MR/L010011/1 to PAF] and the European Community's Seventh Framework Programme (FP7/2007-2013) [under grant agreement no 212885 to PAF], BBSRC/EASTBIO (to AZ), ESHRE supported the ReproUnion fellowship (to AZ), Rigshospitalets Forskningspuljer (to LSM), and ReproUnion 1.0 (to LSM). Acknowledgement Marianne Sguazzino is acknowledged for excellent technical assistance. Gabriela Gudbergsen is acknowledged for her excellent design of Fig. 1. Data Availability: The dataset generated and/or analyzed during the current study are not publicly available but are available from the corresponding author on reasonable request. Microarray data are available with the Array Express accession number: E-MTAB-5611Peer reviewedPostprin
Epidemiology of plasmid lineages mediating the spread of extended-spectrum beta-lactamases among clinical Escherichia coli
The prevalence of extended-spectrum beta-lactamases (ESBLs) among clinical isolates of Escherichia coli has been increasing, with this spread driven by ESBL-encoding plasmids. However, the epidemiology of ESBL-disseminating plasmids remains understudied, obscuring the roles of individual plasmid lineages in ESBL spread. To address this, we performed an in-depth genomic investigation of 149 clinical ESBL-like E. coli isolates from a tertiary care hospital. We obtained high-quality assemblies for 446 plasmids, revealing an extensive map of plasmid sharing that crosses time, space, and bacterial sequence type boundaries. Through a sequence-based network, we identified specific plasmid lineages that are responsible for the dissemination of major ESBLs. Notably, we demonstrate that IncF plasmids separate into 2 distinct lineages that are enriched for different ESBLs and occupy distinct host ranges. Our work provides a detailed picture of plasmid-mediated spread of ESBLs, demonstrating the extensive sequence diversity within identified lineages, while highlighting the genetic elements that underlie the persistence of these plasmids within the clinical E. coli population
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