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|  | | 12 June 2012 | | | Featured image: | |  | | | Wanamaker et al. present a shell radiocarbon record from the North Icelandic shelf showing declining influence of North Atlantic surface waters over the past millennium. | | | | | |
Advertisement | | | | | | | | Latest Articles | View all Articles | | | | | Skeletal muscle stem cells adopt a dormant cell state post mortem and retain regenerative capacity | | | Mathilde Latil, Pierre Rocheteau, Laurent Châtre, Serena Sanulli, Sylvie Mémet, Miria Ricchetti, Shahragim Tajbakhsh and Fabrice Chrétien | | | Stem cells hold great potential for therapeutic use but their supply is limited. Latil et al. isolate muscle stem cells from human and mouse cadavers after 17 and 14 days, respectively, and show that when transplanted into mice the cells can regenerate tissues. | | | 12 Jun | Nat Commun 3:903 doi:10.1038/ncomms1890 (2012) | | | Biological sciences Cell biology | | | Medical research | | Abstract | Full Text | PDF (1,613 kB) |
Supplementary Information |
| Impaired thermogenesis and adipose tissue development in mice with fat-specific disruption of insulin and IGF-1 signalling | | | Jeremie Boucher, Marcelo A. Mori, Kevin Y. Lee, Graham Smyth, Chong Wee Liew, Yazmin Macotela, Michael Rourk, Matthias Bluher, Steven J. Russell and C. Ronald Kahn | | | Insulin and insulin-like growth factor 1 signalling pathways have overlapping effects on adipose tissue and glucose homeostasis. Boucher et al. created fat-specific double knockouts of these pathways and demonstrated their crucial role for adipocyte development, metabolism and thermogenesis in mice. | | | 12 Jun | Nat Commun 3:902 doi:10.1038/ncomms1905 (2012) | | | Biological sciences Biochemistry | | | | Abstract | Full Text | PDF (1,255 kB) |
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| Crystal structure of a plectonemic RNA supercoil | | | Jason R. Stagno, Buyong Ma, Jess Li, Amanda S. Altieri, R. Andrew Byrd and Xinhua Ji | | | Nucleic acid superstructures are required to package genomes into the nucleus of cells. In this study, the superstructure of an RNA supercoil species is reported and is shown to be dependent on an RNA-binding protein that induces a higher level of organization compared with DNA superstructures. | | | 12 Jun | Nat Commun 3:901 doi:10.1038/ncomms1903 (2012) | | | Biological sciences Biochemistry | | | Biophysics Molecular biology | | | | Abstract | Full Text | PDF (862 kB) |
Supplementary Information |
| SynGAP isoforms exert opposing effects on synaptic strength OPEN | | | A.C. McMahon, M.W. Barnett, T.S. O'Leary, P.N. Stoney, M.O. Collins, S. Papadia, J.S. Choudhary, N.H. Komiyama, S.G.N. Grant, G.E. Hardingham, D.J.A. Wyllie and P.C. Kind | | | Synaptic GTPase-activating protein, SynGAP, is a postsynaptic signalling protein that can regulate synaptic function. McMahon et al. express different SynGAP isoforms in neurons and find that the effect on synaptic strength depends on alternative promoter usage and alternative splicing of the C-terminus. | | | 12 Jun | Nat Commun 3:900 doi:10.1038/ncomms1900 (2012) | | | Biological sciences Neuroscience | | | | Abstract | Full Text | PDF (1,767 kB) |
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| Surface changes in the North Atlantic meridional overturning circulation during the last millennium OPEN | | | Alan D. Wanamaker Jr, Paul G. Butler, James D. Scourse, Jan Heinemeier, Jón Eiríksson, Karen Luise Knudsen and Christopher A. Richardson | | | Palaeoclimate proxies, such as shells, record past ocean changes. A radiocarbon study based on a shell chronology from the Icelandic shelf is used to track changes in ocean circulation and climate for the past 1,350 years, suggesting a declining influence of North Atlantic surface waters on the Icelandic shelf over the last millennium. | | | 12 Jun | Nat Commun 3:899 doi:10.1038/ncomms1901 (2012) | | | Earth sciences Climate science | | | Oceanography | | | | Abstract | Full Text | PDF (957 kB) |
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| Robust absolute magnetometry with organic thin-film devices OPEN | | | W.J. Baker, K. Ambal, D.P. Waters, R. Baarda, H. Morishita, K. van Schooten, D.R. McCamey, J.M. Lupton and C. Boehme | | | Magnetometers based on organic magnetoresistance are limited by narrow sensitivity ranges, degradation and temperature fluctuations. Baker et al. demonstrate a magnetic resonance-based organic thin film magnetometer, which overcomes these drawbacks by exploiting the metrological nature of magnetic resonance. | | | 12 Jun | Nat Commun 3:898 doi:10.1038/ncomms1895 (2012) | | | Physical sciences Applied physics | | | Materials science | | | Abstract | Full Text | PDF (840 kB) |
| Atomic scale dynamics of ultrasmall germanium clusters OPEN | | | S. Bals, S. Van Aert, C.P. Romero, K. Lauwaet, M.J. Van Bael, B. Schoeters, B. Partoens, E. Yücelen, P. Lievens and G. Van Tendeloo | | | Ultrasmall clusters of atoms form the building blocks of many nanoscale materials. Using a combination of aberration-corrected transmission electron microscopy and numerical simulations, this study uncovers the geometry of these clusters in three dimensions. | | | 12 Jun | Nat Commun 3:897 doi:10.1038/ncomms1887 (2012) | | | Physical sciences Materials science | | | Nanotechnology | | Abstract | Full Text | PDF (809 kB) |
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| The translation inhibitor pateamine A prevents cachexia-induced muscle wasting in mice OPEN | | | Sergio Di Marco, Anne Cammas, Xian Jin Lian, Erzsebet Nagy Kovacs, Jennifer F. Ma, Derek T. Hall, Rachid Mazroui, John Richardson, Jerry Pelletier and Imed Eddine Gallouzi | | | Cachexia, or muscle-wasting syndrome, is often observed in patients with cancer or sepsis, and no specific treatment of cachexia is currently available. In this study, Di Marco et al. show that low doses of pateamine A, an inhibitor of translation initiation, prevent cachexia in a mouse model of the disease. | | | 12 Jun | Nat Commun 3:896 doi:10.1038/ncomms1899 (2012) | | | Biological sciences Cell biology | | | Medical research | | Abstract | Full Text | PDF (2,697 kB) |
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| Tracing back the nascence of a new sex-determination pathway to the ancestor of bees and ants OPEN | | | Sandra Schmieder, Dominique Colinet and Marylène Poirié | | | In several Hymenoptera species - ants, bees and wasps - sexual fate is determined by the allelic composition at the complementary sex - determiner locus. This study identifies the honeybee complementary sex - determiner in bumble bee and ant orthologues, previously thought to be unique to the honeybee lineage. | | | 12 Jun | Nat Commun 3:895 doi:10.1038/ncomms1898 (2012) | | | Biological sciences Developmental biology | | | Evolution Genetics | | Abstract | Full Text | PDF (845 kB) |
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| Fcp1-dependent dephosphorylation is required for M-phase-promoting factor inactivation at mitosis exit OPEN | | | Roberta Visconti, Luca Palazzo, Rosa Della Monica and Domenico Grieco | | | Cyclin B-dependent kinase 1, the M-phase-promoting factor, is precisely activated and inactivated to control mitosis. In this study, Fcp1—the RNA polymerase II-carboxy-terminal domain phosphatase—is identified as a phosphatase required to inactivate the M-phase-promoting factor and promote mitosis exit. | | | 12 Jun | Nat Commun 3:894 doi:10.1038/ncomms1886 (2012) | | | Biological sciences Cancer | | | Cell biology Molecular biology | | Abstract | Full Text | PDF (1,262 kB) |
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| Pattern of extinction of the woolly mammoth in Beringia OPEN | | | G.M. MacDonald, D.W. Beilman, Y.V. Kuzmin, L.A. Orlova, K.V. Kremenetski, B. Shapiro, R.K. Wayne and B. Van Valkenburgh | | | Beringian mammoths were abundant 45,000 to 30,000 years ago, but then experienced a long decline in concert with changes in climate, habitat and human presence. This study uses 14C dating to trace their spatio temporal pattern of extinction until the loss of final island populations about 4,000 years ago. | | | 12 Jun | Nat Commun 3:893 doi:10.1038/ncomms1881 (2012) | | | Biological sciences Ecology | | | Palaeontology | | Abstract | Full Text | PDF (1,011 kB) |
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| Using light transmission to watch hydrogen diffuse OPEN | | | Gunnar K. Pálsson, Andreas Bliersbach, Max Wolff, Atieh Zamani and Björgvin Hjörvarsson | | | Understanding hydrogen diffusion in metals is a challenge because of limited access to spatial evolution of the concentration profiles. Using time- and spatially resolved optical measurements, Palsson et al. determine the diffusion rate of hydrogen by directly monitoring its transit through a vanadium thin film. | | | 12 Jun | Nat Commun 3:892 doi:10.1038/ncomms1897 (2012) | | | Physical sciences Condensed matter | | | Materials science | | Abstract | Full Text | PDF (527 kB) |
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| Enantioselective synthesis of a chiral nitrogen-doped buckybowl | | | Qitao Tan, Shuhei Higashibayashi, Sangita Karanjit and Hidehiro Sakurai | | | Nitrogen-doped fullerenes and carbon nanotubes have been produced, but the synthesis of nitrogen-doped buckybowls, is an unsolved challenge. Tan et al. report an enantioselective synthesis of triazasumanene, and show that nitrogen doping leads to deeper bowl structures than in all-carbon buckybowls. | | | 12 Jun | Nat Commun 3:891 doi:10.1038/ncomms1896 (2012) | | | Chemical sciences Organic chemistry | | | | Abstract | Full Text | PDF (580 kB) |
Supplementary Information |
| Direct printing of nanostructures by electrostatic autofocussing of ink nanodroplets | | | P. Galliker, J. Schneider, H. Eghlidi, S. Kress, V. Sandoghdar and D. Poulikakos | | | Ink-jet printing methods are an attractive approach to nanofabrication, where electrohydrodynamic control allows for flexible and cheap fabrication. Here, a new approach is presented using electrostatic nanodroplet autofocussing to produce high aspect ratio nanoscale structures like plasmonic nanoantennas. | | | 12 Jun | Nat Commun 3:890 doi:10.1038/ncomms1891 (2012) | | | Physical sciences Applied physics | | | Fluids and plasma physics Nanotechnology | | Abstract | Full Text | PDF (2,475 kB) |
Supplementary Information | | | | | | |
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