Institution
Icahn School of Medicine at Mount Sinai
Education•New York, New York, United States•
About: Icahn School of Medicine at Mount Sinai is a education organization based out in New York, New York, United States. It is known for research contribution in the topics: Population & Medicine. The organization has 37488 authors who have published 76057 publications receiving 3704104 citations. The organization is also known as: Mount Sinai School of Medicine.
Topics: Population, Medicine, Cancer, Health care, Transplantation
Papers published on a yearly basis
Papers
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TL;DR: It is shown that the beneficial effect of CsA on proteinuria is not dependent on NFAT inhibition in T cells, but rather results from the stabilization of the actin cytoskeleton in kidney podocytes, preserving the phosphorylation-dependent synaptopodin–14-3-3β interaction.
Abstract: The immunosuppressive action of the calcineurin inhibitor cyclosporine A (CsA) stems from the inhibition of nuclear factor of activated T cells (NFAT) signaling in T cells. CsA is also used for the treatment of proteinuric kidney diseases. As it stands, the antiproteinuric effect of CsA is attributed to its immunosuppressive action. Here we show that the beneficial effect of CsA on proteinuria is not dependent on NFAT inhibition in T cells, but rather results from the stabilization of the actin cytoskeleton in kidney podocytes. CsA blocks the calcineurin-mediated dephosphorylation of synaptopodin, a regulator of Rho GTPases in podocytes, thereby preserving the phosphorylation-dependent synaptopodin-14-3-3 beta interaction. Preservation of this interaction, in turn, protects synaptopodin from cathepsin L-mediated degradation. These results represent a new view of calcineurin signaling and shed further light on the treatment of proteinuric kidney diseases. Novel calcineurin substrates such as synaptopodin may provide promising starting points for antiproteinuric drugs that avoid the serious side effects of long-term CsA treatment.
850 citations
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TL;DR: Teriflunomide significantly reduced relapse rates, disability progression (at the higher dose), and MRI evidence of disease activity, as compared with placebo.
Abstract: Teriflunomide reduced the annualized relapse rate (0.54 for placebo vs. 0.37 for teri flunomide at either 7 or 14 mg), with relative risk reductions of 31.2% and 31.5%, respectively (P<0.001 for both comparisons with placebo). The proportion of patients with confirmed disability progression was 27.3% with placebo, 21.7% with teriflunomide at 7 mg (P = 0.08), and 20.2% with teriflunomide at 14 mg (P = 0.03). Both teriflunomide doses were superior to placebo on a range of end points measured by magnetic resonance imaging (MRI). Diarrhea, nausea, and hair thinning were more common with teriflunomide than with placebo. The incidence of elevated alanine aminotransferase levels (≥1 times the upper limit of the normal range) was higher with teriflunomide at 7 mg and 14 mg (54.0% and 57.3%, respectively) than with placebo (35.9%); the incidence of levels that were at least 3 times the upper limit of the normal range was similar in the lower- and higher-dose teriflunomide groups and the placebo group (6.3%, 6.7%, and 6.7%, respectively). Serious infections were reported in 1.6%, 2.5%, and 2.2% of patients in the three groups, respectively. No deaths occurred. Conclusions Teriflunomide significantly reduced relapse rates, disability progression (at the higher dose), and MRI evidence of disease activity, as compared with placebo. (Funded by Sanofi-Aventis; TEMSO ClinicalTrials.gov number, NCT00134563.)
849 citations
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Université Paris-Saclay1, University of Toronto2, Karolinska University Hospital3, Pierre-and-Marie-Curie University4, Cincinnati Children's Hospital Medical Center5, Memorial Sloan Kettering Cancer Center6, Necker-Enfants Malades Hospital7, Paris Descartes University8, University of Texas MD Anderson Cancer Center9, Icahn School of Medicine at Mount Sinai10, University of Pittsburgh11, Harvard University12, Brigham and Women's Hospital13, Mayo Clinic14
TL;DR: This revised classification system consists of 5 groups of diseases: (1) Langerhans-related, (2) cutaneous and mucocutaneous, and (3) malignant histiocytoses as well as (4) Rosai-Dorfman disease and (5) hemophagocytic lymphohistiocyts and macrophage activation syndrome.
848 citations
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Icahn School of Medicine at Mount Sinai1, Vanderbilt University Medical Center2, Southern California University of Health Sciences3, University of California, Davis4, University of Massachusetts Medical School5, Harvard University6, Brown University7, New York University8, Stanford University9, Princeton University10, West Virginia University11, University of Michigan12
TL;DR: The difficulties of defining mindfulness are discussed, the proper scope of research into mindfulness practices is delineated, and crucial methodological issues for interpreting results from investigations of mindfulness are explained.
Abstract: During the past two decades, mindfulness meditation has gone from being a fringe topic of scientific investigation to being an occasional replacement for psychotherapy, tool of corporate well-being, widely implemented educational practice, and "key to building more resilient soldiers." Yet the mindfulness movement and empirical evidence supporting it have not gone without criticism. Misinformation and poor methodology associated with past studies of mindfulness may lead public consumers to be harmed, misled, and disappointed. Addressing such concerns, the present article discusses the difficulties of defining mindfulness, delineates the proper scope of research into mindfulness practices, and explicates crucial methodological issues for interpreting results from investigations of mindfulness. For doing so, the authors draw on their diverse areas of expertise to review the present state of mindfulness research, comprehensively summarizing what we do and do not know, while providing a prescriptive agenda for contemplative science, with a particular focus on assessment, mindfulness training, possible adverse effects, and intersection with brain imaging. Our goals are to inform interested scientists, the news media, and the public, to minimize harm, curb poor research practices, and staunch the flow of misinformation about the benefits, costs, and future prospects of mindfulness meditation.
847 citations
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TL;DR: LX-1 and LX-2 human HSC lines provide valuable new tools in the study of liver disease by retaining key features of HSCs and having a retinoid phenotype typical of stellate cells.
Abstract: Background: Hepatic stellate cells (HSCs) are a major fibrogenic cell type that contributes to collagen accumulation during chronic liver disease. With increasing interest in developing antifibrotic therapies, there is a need for cell lines that preserve the in vivo phenotype of human HSCs to elucidate pathways of human hepatic fibrosis. We established and characterised two human HSC cell lines termed LX-1 and LX-2, and compared their features with those of primary human stellate cells.
Methods and results: LX-1 and LX-2 were generated by either SV40 T antigen immortalisation (LX-1) or spontaneous immortalisation in low serum conditions (LX-2). Both lines express α smooth muscle actin, vimentin, and glial fibrillary acid protein, as visualised by immunocytochemistry. Similar to primary HSCs, both lines express key receptors regulating hepatic fibrosis, including platelet derived growth factor receptor β (βPDGF-R), obese receptor long form (Ob-RL), and discoidin domain receptor 2 (DDR2), and also proteins involved in matrix remodelling; matrix metalloproteinase (MMP)-2, tissue inhibitor of matrix metalloproteinase (TIMP)-2, and MT1-MMP, as determined by western analyses. LX-2 have reduced expression of TIMP-1. LX-2, but not LX-1, proliferate in response to PDGF. Both lines express mRNAs for α1(I) procollagen and HSP47. Transforming growth factor β1 stimulation increased their α1(I) procollagen mRNA expression, as determined by quantitative reverse transcription-polymerase chain reaction. LX-2, but not LX-1, cells are highly transfectable. Both lines had a retinoid phenotype typical of stellate cells. Microarray analyses showed strong similarity in gene expression between primary HSCs and either LX-1 (98.4%) or LX-2 (98.7%), with expression of multiple neuronal genes.
Conclusions: LX-1 and LX-2 human HSC lines provide valuable new tools in the study of liver disease. Both lines retain key features of HSCs. Two unique advantages of LX-2 are their viability in serum free media and high transfectability.
845 citations
Authors
Showing all 37948 results
Name | H-index | Papers | Citations |
---|---|---|---|
Robert Langer | 281 | 2324 | 326306 |
Shizuo Akira | 261 | 1308 | 320561 |
Gordon H. Guyatt | 231 | 1620 | 228631 |
Eugene Braunwald | 230 | 1711 | 264576 |
Bruce S. McEwen | 215 | 1163 | 200638 |
Robert J. Lefkowitz | 214 | 860 | 147995 |
Peter Libby | 211 | 932 | 182724 |
Mark J. Daly | 204 | 763 | 304452 |
Stuart H. Orkin | 186 | 715 | 112182 |
Paul G. Richardson | 183 | 1533 | 155912 |
Alan C. Evans | 183 | 866 | 134642 |
John C. Morris | 183 | 1441 | 168413 |
Paul M. Thompson | 183 | 2271 | 146736 |
Tadamitsu Kishimoto | 181 | 1067 | 130860 |
Bruce M. Psaty | 181 | 1205 | 138244 |