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- Bakken, TE, et al.
(författare)
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Comparative cellular analysis of motor cortex in human, marmoset and mouse
- 2021
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 1476-4687 .- 0028-0836. ; 598:7879, s. 111-
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Tidskriftsartikel (refereegranskat)abstract
- The primary motor cortex (M1) is essential for voluntary fine-motor control and is functionally conserved across mammals1. Here, using high-throughput transcriptomic and epigenomic profiling of more than 450,000 single nuclei in humans, marmoset monkeys and mice, we demonstrate a broadly conserved cellular makeup of this region, with similarities that mirror evolutionary distance and are consistent between the transcriptome and epigenome. The core conserved molecular identities of neuronal and non-neuronal cell types allow us to generate a cross-species consensus classification of cell types, and to infer conserved properties of cell types across species. Despite the overall conservation, however, many species-dependent specializations are apparent, including differences in cell-type proportions, gene expression, DNA methylation and chromatin state. Few cell-type marker genes are conserved across species, revealing a short list of candidate genes and regulatory mechanisms that are responsible for conserved features of homologous cell types, such as the GABAergic chandelier cells. This consensus transcriptomic classification allows us to use patch–seq (a combination of whole-cell patch-clamp recordings, RNA sequencing and morphological characterization) to identify corticospinal Betz cells from layer 5 in non-human primates and humans, and to characterize their highly specialized physiology and anatomy. These findings highlight the robust molecular underpinnings of cell-type diversity in M1 across mammals, and point to the genes and regulatory pathways responsible for the functional identity of cell types and their species-specific adaptations.
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- Conroy, Melanie, et al.
(författare)
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Uncertainty in humanities network visualization
- 2024
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Ingår i: Frontiers in Communication. - : Frontiers Media S.A.. - 2297-900X. ; 8
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Tidskriftsartikel (refereegranskat)abstract
- Network visualization is one of the most widely used tools in digital humanities research. The idea of uncertain or “fuzzy” data is also a core notion in digital humanities research. Yet network visualizations in digital humanities do not always prominently represent uncertainty. In this article, we present a mathematical and logical model of uncertainty as a range of values which can be used in network visualizations. We review some of the principles for visualizing uncertainty of different kinds, visual variables that can be used for representing uncertainty, and how these variables have been used to represent different data types in visualizations drawn from a range of non-humanities fields like climate science and bioinformatics. We then provide examples of two diagrams: one in which the variables displaying degrees of uncertainty are integrated into the graph and one in which glyphs are added to represent data certainty and uncertainty. Finally, we discuss how probabilistic data and what-if scenarios could be used to expand the representation of uncertainty in humanities network visualizations.
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- Vincenti, F., et al.
(författare)
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Prospective, multicenter, randomized trial to compare incidence of new-onset diabetes mellitus and glucose metabolism in patients receiving cyclosporine microemulsion versus tacrolimus after de novo kidney transplantation
- 2005
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Ingår i: Transplantation proceedings. - 0041-1345. ; 37:2, s. 1001-4
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Tidskriftsartikel (refereegranskat)abstract
- New-onset diabetes mellitus (NODM) is associated with increased risk of graft failure and death in renal transplant recipients. Some clinical studies have indicated that NODM risk is higher with tacrolimus than cyclosporine, but no comparative trial has used American Diabetic Association (ADA)/World Health Organization (WHO) criteria for diagnosis of diabetes mellitus. The Diabetes Incidence After Renal Transplantation, Neoral C2 Monitoring Versus Tacrolimus (DIRECT) study is a 6-month open-label, multicenter trial comparing the impact of tacrolimus and Neoral (cyclosporine microemulsion) on glucose metabolism in 700 de novo kidney transplant recipients, based on ADA/WHO criteria. Patients are randomized to tacrolimus (C0 monitoring) or Neoral (C2 monitoring), stratified by baseline diabetic status and ethnicity. All patients receive basiliximab, corticosteroids, and mycophenolate mofetil or enteric-coated mycophenolate acid (myfortic). Pooled interim 3-month results from a subset of 115 patients receiving either tacrolimus or Neoral showed that the primary efficacy end-point (biopsy-proven acute rejection [BPAR], graft loss or death) occurred in 11 patients (10%). There were four graft losses and only one death, which occurred after graft loss. Eight patients experienced BPAR (7.3%). Among 99 patients who were nondiabetic at baseline, 14 developed NODM by month 3, 17 developed impaired fasting glucose or impaired glucose tolerance, and another 5 patients received hypoglycemic treatment for at least 14 consecutive days or at the month 3 visit, resulting in a 36% incidence of impaired glucose metabolism. At 3 months, median GFR (Nankivell) was 63.7 mL/min; median serum creatinine was 137 micromol/L. Full complete results are expected in December 2005.
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