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By thirdrev, on September 20th, 2010
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Adan Aguirre, Maria E. Rubio & Vittorio Gallo
Specialized cellular microenvironments, or ‘niches’, modulate stem cell properties, including cell number, self-renewal and fate decisions1, 2. In the adult brain, niches that maintain a source of neural stem cells (NSCs) and neural progenitor cells (NPCs) are the subventricular zone (SVZ) of . . . → Read More: Notch and EGFR pathway interaction regulates neural stem cell number and self-renewal
By Mulder DW, Boyd ES, Sarma R, Lange RK, Endrizzi JA, Broderick JB, Peters JW, on August 29th, 2010
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Stepwise [FeFe]-hydrogenase H-cluster assembly revealed in the structure of HydA(DeltaEFG).
Nature. 2010 May 13;465(7295):248-51
Authors: Mulder DW, Boyd ES, Sarma R, Lange RK, Endrizzi JA, Broderick JB, Pet… . . . → Read More: Stepwise [FeFe]-hydrogenase H-cluster assembly revealed in the structure of HydA(DeltaEFG).
By Balasubramanian R, Smith SM, Rawat S, Yatsunyk LA, Stemmler TL, Rosenzweig AC, on August 29th, 2010
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Oxidation of methane by a biological dicopper centre.
Nature. 2010 May 6;465(7294):115-9
Authors: Balasubramanian R, Smith SM, Rawat S, Yatsunyk LA, Stemmler TL, Rosenzweig AC
Vast world reserves of … . . . → Read More: Oxidation of methane by a biological dicopper centre.
By Baldridge MT, King KY, Boles NC, Weksberg DC, Goodell MA, on August 29th, 2010
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Quiescent haematopoietic stem cells are activated by IFN-gamma in response to chronic infection.
Nature. 2010 Jun 10;465(7299):793-7
Authors: Baldridge MT, King KY, Boles NC, Weksberg DC, Goodell MA
… . . . → Read More: Quiescent haematopoietic stem cells are activated by IFN-gamma in response to chronic infection.
By Scheller S, Goenrich M, Boecher R, Thauer RK, Jaun B, on August 29th, 2010
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The key nickel enzyme of methanogenesis catalyses the anaerobic oxidation of methane.
Nature. 2010 Jun 3;465(7298):606-8
Authors: Scheller S, Goenrich M, Boecher R, Thauer RK, Jaun B
Large amounts (e… . . . → Read More: The key nickel enzyme of methanogenesis catalyses the anaerobic oxidation of methane.
By Iwase T, Uehara Y, Shinji H, Tajima A, Seo H, Takada K, Agata T, Mizunoe Y, on August 29th, 2010
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Staphylococcus epidermidis Esp inhibits Staphylococcus aureus biofilm formation and nasal colonization.
Nature. 2010 May 20;465(7296):346-9
Authors: Iwase T, Uehara Y, Shinji H, Tajima A, Seo H, Takada K, Ag… . . . → Read More: Staphylococcus epidermidis Esp inhibits Staphylococcus aureus biofilm formation and nasal colonization.
By Marteyn B, West NP, Browning DF, Cole JA, Shaw JG, Palm F, Mounier J, Prévost MC, Sansonetti P, Tang CM, on August 29th, 2010
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Modulation of Shigella virulence in response to available oxygen in vivo.
Nature. 2010 May 20;465(7296):355-8
Authors: Marteyn B, West NP, Browning DF, Cole JA, Shaw JG, Palm F, Mounier J, Prévost MC, San… . . . → Read More: Modulation of Shigella virulence in response to available oxygen in vivo.
By Reyes A, Haynes M, Hanson N, Angly FE, Heath AC, Rohwer F, Gordon JI, on August 29th, 2010
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Viruses in the faecal microbiota of monozygotic twins and their mothers.
Nature. 2010 Jul 15;466(7304):334-8
Authors: Reyes A, Haynes M, Hanson N, Angly FE, Heath AC, Rohwer F, Gordon JI
Viral divers… . . . → Read More: Viruses in the faecal microbiota of monozygotic twins and their mothers.
By Montero Llopis P, Jackson AF, Sliusarenko O, Surovtsev I, Heinritz J, Emonet T, Jacobs-Wagner C, on August 29th, 2010
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Spatial organization of the flow of genetic information in bacteria.
Nature. 2010 Jul 1;466(7302):77-81
Authors: Montero Llopis P, Jackson AF, Sliusarenko O, Surovtsev I, Heinritz J, Emonet T, Jacobs-Wagner … . . . → Read More: Spatial organization of the flow of genetic information in bacteria.
By Bax BD, Chan PF, Eggleston DS, Fosberry A, Gentry DR, Gorrec F, Giordano I, Hann MM, Hennessy A, Hibbs M, Huang J, Jones E, Jones J, Brown KK, Lewis CJ, May EW, Saunders MR, Singh O, Spitzfaden CE, Shen C, Shillings A, Theobald AJ, Wohlkonig A, Pears, on August 29th, 2010
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Type IIA topoisomerase inhibition by a new class of antibacterial agents.
Nature. 2010 Aug 19;466(7309):935-40
Authors: Bax BD, Chan PF, Eggleston DS, Fosberry A, Gentry DR, Gorrec F, Giordano I, Hann MM, He… . . . → Read More: Type IIA topoisomerase inhibition by a new class of antibacterial agents.
By Lee LK, Ginsburg MA, Crovace C, Donohoe M, Stock D, on August 29th, 2010
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Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching.
Nature. 2010 Aug 19;466(7309):996-1000
Authors: Lee LK, Ginsburg MA, Crovace C, Donohoe M, Stock D
… . . . → Read More: Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching.
By thirdrev, on August 28th, 2010
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In response to Kessels et al
Juha Laurén1, David A. Gimbel1, Haakon B. Nygaard1, John W. Gilbert1 & Stephen M. Strittmatter1
Amyloid-? oligomers are correlated with Alzheimer’s disease progression and suppress synaptic plasticity1, 2, 3. Through unbiased expression cloning, we identified cellular prion protein (PrPC) as an amyloid-? oligomer binding protein4. PrPC was necessary for acute . . . → Read More: Laurén et al. reply
By thirdrev, on August 28th, 2010
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Reply to Lauren et al 2009
Kessels HW, Nguyen LN, Nabavi S, Malinow R.
Increased levels of brain amyloid-beta, a secreted peptide cleavage product of amyloid precursor protein (APP), is believed to be critical in the aetiology of Alzheimer’s disease. Increased amyloid-beta can cause synaptic depression, reduce the number of spine protrusions (that . . . → Read More: The prion protein as a receptor for amyloid-beta
By thirdrev, on August 28th, 2010
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Jun Gao, Wen-Yuan Wang, Ying-Wei Mao, Johannes Gräff, Ji-Song Guan, Ling Pan, Gloria Mak, Dohoon Kim, Susan C. Su & Li-Huei Tsai
The NAD-dependent deacetylase Sir2 was initially identified as a mediator of replicative lifespan in budding yeast and was subsequently shown to modulate longevity in worms and flies1, 2. Its mammalian . . . → Read More: A novel pathway regulates memory and plasticity via SIRT1 and miR-134
By thirdrev, on August 28th, 2010
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Andrew C. Elden, Hyung-Jun Kim, Michael P. Hart, Alice S. Chen-Plotkin, Brian S. Johnson, Xiaodong Fang, Maria Armakola, Felix Geser, Robert Greene, Min Min Lu, Arun Padmanabhan, Dana Clay-Falcone, Leo McCluskey, Lauren Elman, Denise Juhr, Peter J. Gruber, Udo Rüb, Georg Auburger, John Q. Trojanowski, Virginia M.-Y. Lee, Vivianna M. Van Deerlin, Nancy M. . . . → Read More: Ataxin-2 intermediate-length polyglutamine expansions are associated with increased risk for ALS
By thirdrev, on August 12th, 2010
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Jonathan A. Oler, Andrew S. Fox, Steven E. Shelton, Jeffrey Rogers, Thomas D. Dyer, Richard J. Davidson, Wendy Shelledy, Terrence R. Oakes, John Blangero & Ned H. Kalin
Anxious temperament (AT) in human and non-human primates is a trait-like phenotype evident early in life that is characterized by increased behavioural and physiological reactivity . . . → Read More: Amygdalar and hippocampal substrates of anxious temperament differ in their heritability
By thirdrev, on July 30th, 2010
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Biliana Marcheva, Kathryn Moynihan Ramsey, Ethan D. Buhr, Yumiko Kobayashi, Hong Su, Caroline H. Ko, Ganka Ivanova, Chiaki Omura, Shelley Mo, Martha H. Vitaterna, James P. Lopez, Louis H. Philipson, Christopher A. Bradfield, Seth D. Crosby, Lellean JeBailey, Xiaozhong Wang, Joseph S. Takahashi & Joseph Bass
The molecular clock maintains energy constancy by producing circadian . . . → Read More: Disruption of the clock components CLOCK and BMAL1 leads to hypoinsulinaemia and diabetes
By thirdrev, on July 30th, 2010
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Alexxai V. Kravitz, Benjamin S. Freeze, Philip R. L. Parker, Kenneth Kay, Myo T. Thwin, Karl Deisseroth & Anatol C. Kreitzer
Neural circuits of the basal ganglia are critical for motor planning and action selection1, 2, 3. Two parallel basal ganglia pathways have been described4, and have been proposed to exert opposing influences on motor . . . → Read More: Regulation of parkinsonian motor behaviours by optogenetic control of basal ganglia circuitry
By thirdrev, on July 30th, 2010
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Ifije E. Ohiorhenuan, Ferenc Mechler, Keith P. Purpura, Anita M. Schmid, Qin Hu & Jonathan D. Victor
Connectivity in the cortex is organized at multiple scales1, 2, 3, 4, 5, suggesting that scale-dependent correlated activity is particularly important for understanding the behaviour of sensory cortices and their function in stimulus encoding. We . . . → Read More: Sparse coding and high-order correlations in fine-scale cortical networks
By Angang Dong, on July 27th, 2010
Binary nanocrystal superlattice membranes self-assembled at the liquid–air interface
Nature 466, 474 (2010). doi:10.1038/nature09188
Authors: Angang Dong, Jun Chen, Patrick M. Vora, James M. Kikkawa & Christopher B. Murray
The spontaneou… . . . → Read More: Binary nanocrystal superlattice membranes self-assembled at the liquid–air interface
By Cristian Gudasz, on July 27th, 2010
Temperature-controlled organic carbon mineralization in lake sediments
Nature 466, 478 (2010). doi:10.1038/nature09186
Authors: Cristian Gudasz, David Bastviken, Kristin Steger, Katrin Premke, Sebastian Sobek & Lars J. Tranvik
Peatlands, soils… . . . → Read More: Temperature-controlled organic carbon mineralization in lake sediments
By Arpat Ozgul, on July 27th, 2010
Coupled dynamics of body mass and population growth in response to environmental change
Nature 466, 482 (2010). doi:10.1038/nature09210
Authors: Arpat Ozgul, Dylan Z. Childs, Madan K. Oli, Kenneth B. Armitage, Daniel T. Blumstein, Lucretia E. Olso… . . . → Read More: Coupled dynamics of body mass and population growth in response to environmental change
By Jang Hyun Choi, on July 27th, 2010
Anti-diabetic drugs inhibit obesity-linked phosphorylation of PPARγ by Cdk5
Nature 466, 451 (2010). doi:10.1038/nature09291
Authors: Jang Hyun Choi, Alexander S. Banks, Jennifer L. Estall, Shingo Kajimura, Pontus Boström, Dina Laznik, Jo… . . . → Read More: Anti-diabetic drugs inhibit obesity-linked phosphorylation of PPAR? by Cdk5
By Xin Jin, on July 27th, 2010
Start/stop signals emerge in nigrostriatal circuits during sequence learning
Nature 466, 457 (2010). doi:10.1038/nature09263
Authors: Xin Jin & Rui M. Costa
Learning new action sequences subserves a plethora of different abilities such as esca… . . . → Read More: Start/stop signals emerge in nigrostriatal circuits during sequence learning
By Tzu-Ching Chang, on July 27th, 2010
An intensity map of hydrogen 21-cm emission at redshift z ≈ 0.8
Nature 466, 463 (2010). doi:10.1038/nature09187
Authors: Tzu-Ching Chang, Ue-Li Pen, Kevin Bandura & Jeffrey B. Peterson
Observations of 21-cm radio emission by … . . . → Read More: An intensity map of hydrogen 21-cm emission at redshift z???0.8
By Jeremy W. Boyce, on July 27th, 2010
Lunar apatite with terrestrial volatile abundances
Nature 466, 466 (2010). doi:10.1038/nature09274
Authors: Jeremy W. Boyce, Yang Liu, George R. Rossman, Yunbin Guan, John M. Eiler, Edward M. Stolper & Lawrence A. Taylor
The Moon is thought to… . . . → Read More: Lunar apatite with terrestrial volatile abundances
By Jinming Cai, on July 27th, 2010
Atomically precise bottom-up fabrication of graphene nanoribbons
Nature 466, 470 (2010). doi:10.1038/nature09211
Authors: Jinming Cai, Pascal Ruffieux, Rached Jaafar, Marco Bieri, Thomas Braun, Stephan Blankenburg, Matthias Muoth, Ari P. Seitsonen… . . . → Read More: Atomically precise bottom-up fabrication of graphene nanoribbons
By Anton Khmelinskii, on July 27th, 2010
Arising from: Z. Shcheprova, S. Baldi, S. B. Frei, G. Gonnet & Y. Barral Nature454, 728–734 (2008)During mitosis in Saccharomyces cerevisiae, senescence factors such as extrachromosomal ribosomal DNA circles (ERCs) are retained in the mother cell and excluded from the bud/daughter cell. Shcheprova et al. proposed a model suggesting segregation of ERCs through their association with nuclear pore complexes (NPCs) and retention of pre-existing NPCs in the mother cell during mitosis. However, this model is inconsistent with previous data and we demonstrate here that NPCs do efficiently migrate from the mother into the bud. Therefore, binding to NPCs does not seem to explain the retention of ERCs in the mother cell. . . . → Read More: Segregation of yeast nuclear pores
By thirdrev, on July 23rd, 2010
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Yunkun Wu, Yi Yang, Sheng Ye & Youxing Jiang
Large-conductance Ca2+-gated K+ (BK) channels are essential for many biological processes such as smooth muscle contraction and neurotransmitter release1, 2, 3, 4. This group of channels can be activated synergistically by both voltage and intracellular Ca2+, with the large carboxy-terminal intracellular portion being responsible for Ca2+ . . . → Read More: Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel
By thirdrev, on July 23rd, 2010
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Michael C. Schmid, Sylwia W. Mrowka, Janita Turchi, Richard C. Saunders, Melanie Wilke, Andrew J. Peters, Frank Q. Ye & David A. Leopold
Injury to the primary visual cortex (V1) leads to the loss of visual experience. Nonetheless, careful testing shows that certain visually guided behaviours can persist even in the absence of . . . → Read More: Blindsight depends on the lateral geniculate nucleus
By thirdrev, on July 23rd, 2010
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Dalila Pinto, Alistair T. Pagnamenta, Lambertus Klei, Richard Anney, Daniele Merico, Regina Regan, Judith Conroy, Tiago R. Magalhaes, Catarina Correia, Brett S. Abrahams, Joana Almeida, Elena Bacchelli, Gary D. Bader, Anthony J. Bailey, Gillian Baird, Agatino Battaglia, Tom Berney, Nadia Bolshakova, Sven Bölte, Patrick F. Bolton, Thomas Bourgeron, Sean Brennan, Jessica Brian, Susan E. . . . → Read More: Functional impact of global rare copy number variation in autism spectrum disorders
By thirdrev, on July 23rd, 2010
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Jiusheng Yan & Richard W. Aldrich
Large-conductance, voltage- and calcium-activated potassium (BK, or KCa1.1) channels are ubiquitously expressed in electrically excitable and non-excitable cells1, 2, either as ?-subunit (BK?) tetramers or together with tissue specific auxiliary ?-subunits (?1–?4)3, 4, 5. Activation of BK channels typically requires coincident membrane depolarization and elevation in free cytosolic Ca2+ . . . → Read More: LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium
By thirdrev, on July 23rd, 2010
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Hank H. Qi, Madathia Sarkissian, Gang-Qing Hu, Zhibin Wang, Arindam Bhattacharjee, D. Benjamin Gordon, Michelle Gonzales, Fei Lan, Pat P. Ongusaha, Maite Huarte, Nasser K. Yaghi, Huijun Lim, Benjamin A. Garcia, Leonardo Brizuela, Keji Zhao, Thomas M. Roberts & Yang Shi
X-linked mental retardation (XLMR) is a complex human disease that causes intellectual disability1. Causal . . . → Read More: Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development
By thirdrev, on July 23rd, 2010
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Xin Jin & Rui M. Costa
Learning new action sequences subserves a plethora of different abilities such as escaping a predator, playing the piano, or producing fluent speech. Proper initiation and termination of each action sequence is critical for the organization of behaviour, and is compromised in nigrostriatal disorders like Parkinson’s . . . → Read More: Start/stop signals emerge in nigrostriatal circuits during sequence learning
By Nature - Issue - nature.com science feeds, on July 21st, 2010
The decade-late, over-budget arrival of SOFIA shows that NASA’s practices need to change. . . . → Read More: NASA under the spotlight
By Nature - Issue - nature.com science feeds, on July 21st, 2010
The controversy surrounding diabetes drugs highlights the importance of comparative studies. . . . → Read More: Effective approach
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Researchers and activists alike benefit from dialogue — and a clear line between legal and illegal acts. . . . → Read More: An act of distinction
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Am. Nat. doi:10.1086/655216 (2010)Male birds trying to woo females may improve their chances by socializing more, effectively boosting their relative attractiveness.Kevin Oh, currently at Cornell University in Ithaca, New York, and Alexander Badyaev at the University . . . → Read More: Sexual selection: Networking for mates
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Cancer Cell18, 74–87 (2010) 10.1016/j.ccr.2010.04.025The primary therapy for chronic myeloid leukaemia (CML), a blood cancer, is the drug Gleevec (imatinib mesylate), which targets a protein thought to be causative in the disease. But many patients . . . → Read More: Cancer biology: Leukaemia lockdown
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Nature Photonics doi:10.1038/nphoton.2010.165 (2010)Nestled between microwaves and infrared light on the electromagnetic spectrum, terahertz waves can penetrate plastic and fabrics and are used to identify chemicals. But unlike most electromagnetic radiation, they cannot travel far through air . . . → Read More: Physics: Detection from a distance
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Proc. Natl Acad. Sci. USA doi:10.1073/pnas.1003040107 (2010)One route HIV takes to infecting the immune system’s T cells is through dendritic cells, which present antigen on their surface. Researchers have captured three-dimensional images of single viral particles being . . . → Read More: Virology: HIV spread in 3D
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Neuron67, 49–60 (2010) 10.1016/j.neuron.2010.05.023Perception of patterns in the eye has long been attributed solely to two types of retinal cell — the rods and cones — but a study suggests that they are not alone . . . → Read More: Neuroscience: Versatile vision
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Ecol. Lett. doi:10.1111/j.1461-0248.2010.01513.x (2010)Many pathogens reside in ‘reservoir’ hosts before breaking out and causing infections. Predicting which hosts make good reservoirs could aid disease control. James Cronin and his team at the University of North Carolina at . . . → Read More: Ecology: Hunt for pathogen’s home
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research PLoS Genet.6, e1001022 (2010) 10.1371/journal.pgen.1001022A gene similar to one in humans linked to sperm production has been found in representative organisms from each of the major animal lineages. This suggests that some components of sperm production have . . . → Read More: Molecular evolution: Sperm-making origins
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Phys. Rev. Lett.105, 034501 (2010) 10.1103/PhysRevLett.105.034501The popular desktop toy Newton’s cradle consists of a row of suspended metallic spheres. When the sphere at one end is pulled back and released, it strikes the row, causing the sphere . . . → Read More: Physics: Sticky balls
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Science doi:10.1126/science.1190721 (2010)Long thought simply to provide support to neurons, star-shaped brain cells called astrocytes may also be important in regulating breathing.Alexander Gourine at University College London, Sergey Kasparov at the University of Bristol, UK, and . . . → Read More: Neuroscience: Brain breathing
By Nature - Issue - nature.com science feeds, on July 21st, 2010
Cited research Phys. Rev. Lett.105, 013003 (2010) 10.1103/PhysRevLett.105.013003A cloud of antiprotons has been cooled to the coldest temperature yet, paving the way for a fundamental test of the symmetry of matter and antimatter, say Jeffrey Hangst of Aarhus University . . . → Read More: Particle physics: Arctic antimatter
By François Fuks, on July 21st, 2010
A cancer biologist marvels at how key gene regulators are still revealing hidden talents.What a difference time makes! It does not seem long since I learned, as a university student and as if it was a closed topic, that the regulation of fruitflies’ ‘homeotic’ . . . → Read More: Journal club
By Heidi Ledford, on July 21st, 2010
As FDA advisers vote for restrictions on Avandia, researchers reveal a way to make such drugs safer. . . . → Read More: Diabetes drugs offered fresh start
By Rex Dalton, on July 21st, 2010
Congressional watchdog unearths shortcomings at agency in charge of repatriating ancient tribal remains. . . . → Read More: Audit picks a bone with US relics office
By Eric Hand, on July 21st, 2010
NASA and Germany have spent 15 years and billions of dollars on SOFIA, an airborne telescope that is about to produce its first results. Eric Hand asks whether the science will justify the cost. . . . → Read More: Astronomy: Ready for boarding — finally
By Janet Fang, on July 21st, 2010
Eradicating any organism would have serious consequences for ecosystems — wouldn’t it? Not when it comes to mosquitoes, finds Janet Fang. . . . → Read More: Ecology: A world without mosquitoes
By James Kakalios, on July 21st, 2010
As one of the earliest participants in the Science and Entertainment Exchange Program of the US National Academy of Sciences, I would like to counter Daniel Sarewitz’s criticisms (Nature466, 27; 2010) by highlighting its success in promoting science to the public. . . . → Read More: They come for the fiction and stay for the science
By Gail Whiteman, on July 21st, 2010
Ricardo Bayon and Michael Jenkins’s Opinion article oversimplifies the role of business in addressing environmental issues (Nature466, 184–185; 2010).Biodiversity interacts with essential and interdependent planetary processes, such as climate change and nitrogen cycles, which are already approaching . . . → Read More: Businesses and biodiversity: they would say that
By Nicolas Nierenberg, on July 21st, 2010
We object to the inaccurate and misleading characterization of William Nierenberg by Naomi Oreskes and Erik Conway (Nature465, 686–687; 2010). Their claim that the peer-review panel chaired by Nierenberg “played down the severity of acid rain” is a . . . → Read More: An independent thinker, willing to say what he thought
By Sandra Titus, on July 21st, 2010
A change in institutional culture is needed to promote responsible scientific behaviour and prevent misconduct. That’s unlikely to happen unless money is involved, say Sandra Titus and Xavier Bosch. . . . → Read More: Tie funding to research integrity
By Gerald P. Koocher, on July 21st, 2010
A new survey shows that informal intervention can often avert much irresponsible scientific behaviour, and is not as risky as people might fear, say Gerald Koocher and Patricia Keith-Spiegel. . . . → Read More: Peers nip misconduct in the bud
By Brian Wynne, on July 21st, 2010
Brian Wynne wishes that a book on the vulnerability of scientific evidence to attack by ideologists had grappled more with the larger question of why science is such an easy target. . . . → Read More: When doubt becomes a weapon
By Philip Ball, on July 21st, 2010
Aesthetically speaking, there is little to venerate in the periodic table. It is a messy family tree whose charm stems more from its quirks than its orderliness. No one doubts its mnemonic utility, but it is perverse that we regard the table both as an . . . → Read More: Behind the periodic table
By Riekelt H. Houtkooper, on July 21st, 2010
Antidiabetic drugs that activate the protein PPAR? had a bright start but soon lost their appeal because of undesirable side effects. Subtle modifications may once again make them suitable for treating diabetes. . . . → Read More: Obesity: New life for antidiabetic drugs
By Chris L. Carilli, on July 21st, 2010
An innovative way of mapping the large-scale structure in the Universe sidesteps the need to observe millions of galaxies individually. The approach holds promise for both astrophysical and cosmological studies. . . . → Read More: Astrophysics: Broad-brush cosmos
By Marcel E. Visser, on July 21st, 2010
Demonstrations of coupled phenotypic and demographic responses to climate change are rare. But they are much needed in formulating predictions of the effects of climate change on natural populations. . . . → Read More: Climate change: Fatter marmots on the rise
By Tobias Ritter, on July 21st, 2010
By putting the pieces of a chemical puzzle into the right order, a thorny problem in catalysis has been solved. This opens the door to syntheses of molecules that contain the useful trifluoromethyl group. . . . → Read More: Catalysis: Fluorination made easier
By Tamás Székely, on July 21st, 2010
Conservation science: Hunting the cause of a population crash
Nature 466, 448 (2010). doi:10.1038/466448a
Authors: Tamás Székely & William J. Sutherland
. . . → Read More: Conservation science: Hunting the cause of a population crash
By Paolo Calabresi, on July 21st, 2010
The organization of behaviour as sequences of actions requires proper initiation and termination of each action sequence. The neural circuit that signals instructions to start and stop is now revealed. . . . → Read More: Neuroscience: Brain’s traffic lights
By Jeff Crook, on July 21st, 2010
A delicate balancing act. . . . → Read More: Little Dutch boy
By Richard Van Noorden, on July 20th, 2010
Royal Society predicts ‘game over’ for British science. . . . → Read More: UK government warned over ‘catastrophic’ cuts
By Jeff Tollefson, on July 20th, 2010
Studies highlight uncertainties over effects of climate change. . . . → Read More: Amazon drought raises research doubts
By Emma Marris, on July 20th, 2010
Targeted researchers support the legislation, despite free-speech concerns. . . . → Read More: Animal rights ‘terror’ law challenged
By Zeeya Merali, on July 20th, 2010
The Large Hadron Collider could throw up evidence of new physics earlier than expected. . . . → Read More: Collider gets yet more exotic ‘to-do’ list
By Hank H. Qi, on July 11th, 2010
Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development
Nature 466, 503 (2010). doi:10.1038/nature09261
Authors: Hank H. Qi, Madathia Sarkissian, Gang-Qing Hu, Zhibin Wang, Arindam Bhattacharjee, D. Benjamin Gord… . . . → Read More: Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development
By Wen Liu, on July 11th, 2010
PHF8 mediates histone H4 lysine 20 demethylation events involved in cell cycle progression
Nature 466, 508 (2010). doi:10.1038/nature09272
Authors: Wen Liu, Bogdan Tanasa, Oksana V. Tyurina, Tian Yuan Zhou, Reto Gassmann, Wei Ting Liu, Kenneth A. … . . . → Read More: PHF8 mediates histone H4 lysine 20 demethylation events involved in cell cycle progression
By thirdrev, on July 7th, 2010
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Luis G. Cuello, Vishwanath Jogini, D. Marien Cortes, Albert C. Pan, Dominique G. Gagnon, Olivier Dalmas, Julio F. Cordero-Morales, Sudha Chakrapani, Benoît Roux & Eduardo Perozo
The coupled interplay between activation and inactivation gating is a functional hallmark of K+ channels1, 2. This coupling has been experimentally demonstrated through ion interaction effects3, 4 . . . → Read More: Structural basis for the coupling between activation and inactivation gates in K+ channels
By thirdrev, on July 7th, 2010
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Luis G. Cuello, Vishwanath Jogini, D. Marien Cortes & Eduardo Perozo
Interconversion between conductive and non-conductive forms of the K+ channel selectivity filter underlies a variety of gating events, from flicker transitions (at the microsecond timescale) to C-type inactivation (millisecond to second timescale). Here we report the crystal structure of the Streptomyces . . . → Read More: Structural mechanism of C-type inactivation in K+ channels
By thirdrev, on July 7th, 2010
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Jonathan A. Hollander, Heh-In Im, Antonio L. Amelio, Jannet Kocerha, Purva Bali, Qun Lu, David Willoughby, Claes Wahlestedt, Michael D. Conkright & Paul J. Kenny
Cocaine addiction is characterized by a gradual loss of control over drug use, but the molecular mechanisms regulating vulnerability to this process remain unclear. Here we report that . . . → Read More: Striatal microRNA controls cocaine intake through CREB signalling
By Eun-Soo Kwon, on July 7th, 2010
A new DAF-16 isoform regulates longevity
Nature 466, 498 (2010). doi:10.1038/nature09184
Authors: Eun-Soo Kwon, Sri Devi Narasimhan, Kelvin Yen & Heidi A. Tissenbaum
The insulin/IGF-1 signalling (IIS) pathway has diverse roles from metabolism … . . . → Read More: A new DAF-16 isoform regulates longevity
By Jiusheng Yan, on July 7th, 2010
LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium
Nature 466, 513 (2010). doi:10.1038/nature09162
Authors: Jiusheng Yan & Richard W. Aldrich
Large-conductance, voltage- and calcium-activated potassium (BK… . . . → Read More: LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium
By thirdrev, on July 4th, 2010
See the paper
Michael London, Arnd Roth, Lisa Beeren, Michael Häusser & Peter E. Latham
It is well known that neural activity exhibits variability, in the sense that identical sensory stimuli produce different responses1, 2, 3, but it has been difficult to determine what this variability means. Is it noise, or does it carry important . . . → Read More: Sensitivity to perturbations in vivo implies high noise and suggests rate coding in cortex
By thirdrev, on July 4th, 2010
See the paper
Sachiko Haga, Tatsuya Hattori, Toru Sato, Koji Sato, Soichiro Matsuda, Reiko Kobayakawa, Hitoshi Sakano, Yoshihiro Yoshihara, Takefumi Kikusui & Kazushige Touhara
Various social behaviours in mice are regulated by chemical signals called pheromones that act through the vomeronasal system1, 2, 3. Exocrine gland-secreting peptide 1 (ESP1) is a 7-kDa peptide that is . . . → Read More: The male mouse pheromone ESP1 enhances female sexual receptive behaviour through a specific vomeronasal receptor
By Richard A. Fuller, on June 30th, 2010
Replacing underperforming protected areas achieves better conservation outcomes
Nature 466, 365 (2010). doi:10.1038/nature09180
Authors: Richard A. Fuller, Eve McDonald-Madden, Kerrie A. Wilson, Josie Carwardine, Hedley S. Grantham, James E. M. Wa… . . . → Read More: Replacing underperforming protected areas achieves better conservation outcomes
By Jean-Marc Lassance, on June 30th, 2010
Allelic variation in a fatty-acyl reductase gene causes divergence in moth sex pheromones
Nature 466, 486 (2010). doi:10.1038/nature09058
Authors: Jean-Marc Lassance, Astrid T. Groot, Marjorie A. Liénard, Binu Antony, Christin Borgwardt, Fred… . . . → Read More: Allelic variation in a fatty-acyl reductase gene causes divergence in moth sex pheromones
By Gilberto Bento, on June 30th, 2010
Co-option of the hormone-signalling module dafachronic acid–DAF-12 in nematode evolution
Nature 466, 494 (2010). doi:10.1038/nature09164
Authors: Gilberto Bento, Akira Ogawa & Ralf J. Sommer
Morphological novelties are lineage-specific t… . . . → Read More: Co-option of the hormone-signalling module dafachronic acid–DAF-12 in nematode evolution
By thirdrev, on June 23rd, 2010
See the paper
See also related paper by Grubb and Burrone
Hiroshi Kuba, Yuki Oichi & Harunori Ohmori
Deprivation of afferent inputs in neural circuits leads to diverse plastic changes in both pre- and postsynaptic elements that restore neural activity1. The axon initial segment (AIS) is the site at which neural signals arise2, 3, and should . . . → Read More: Presynaptic activity regulates Na+ channel distribution at the axon initial segment
By thirdrev, on June 23rd, 2010
See the paper
See also related paper by Kuba et al.
Matthew S. Grubb & Juan Burrone
In neurons, the axon initial segment (AIS) is a specialized region near the start of the axon that is the site of action potential initiation1, 2, 3, 4, 5, 6. The precise location of the AIS varies across and . . . → Read More: Activity-dependent relocation of the axon initial segment fine-tunes neuronal excitability
By Michael C. Schmid, on June 23rd, 2010
Blindsight depends on the lateral geniculate nucleus
Nature 466, 373 (2010). doi:10.1038/nature09179
Authors: Michael C. Schmid, Sylwia W. Mrowka, Janita Turchi, Richard C. Saunders, Melanie Wilke, Andrew J. Peters, Frank Q. Ye & David A. Leop… . . . → Read More: Blindsight depends on the lateral geniculate nucleus
By Yunkun Wu, on June 23rd, 2010
Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel
Nature 466, 393 (2010). doi:10.1038/nature09252
Authors: Yunkun Wu, Yi Yang, Sheng Ye & Youxing Jiang
Large-conductance Ca2+-gated K+ (BK) channels are essenti… . . . → Read More: Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel
By Hai Song, on June 20th, 2010
Planar cell polarity breaks bilateral symmetry by controlling ciliary positioning
Nature 466, 378 (2010). doi:10.1038/nature09129
Authors: Hai Song, Jianxin Hu, Wen Chen, Gene Elliott, Philipp Andre, Bo Gao & Yingzi Yang
Defining the three bod… . . . → Read More: Planar cell polarity breaks bilateral symmetry by controlling ciliary positioning
By thirdrev, on June 16th, 2010
Yujiao J. Sun, Guangying K. Wu, Bao-hua Liu, Pingyang Li, Mu Zhou, Zhongju Xiao, Huizhong W. Tao & Li I. Zhang
Abstract
See also Dorrn et al from same issue . . . → Read More: Fine-tuning of pre-balanced excitation and inhibition during auditory cortical development
By thirdrev, on June 16th, 2010
Anja L. Dorrn, Kexin Yuan, Alison J. Barker, Christoph E. Schreiner & Robert C. Froemke
Abstract
See also Sun et al. from same issue . . . → Read More: Developmental sensory experience balances cortical excitation and inhibition
By Eric L. Greer, on June 16th, 2010
Members of the H3K4 trimethylation complex regulate lifespan in a germline-dependent manner in C. elegans
Nature 466, 383 (2010). doi:10.1038/nature09195
Authors: Eric L. Greer, Travis J. Maures, Anna G. Hauswirth, Erin M. Green, Dena S. Leeman, G… . . . → Read More: Members of the H3K4 trimethylation complex regulate lifespan in a germline-dependent manner in C. elegans
By thirdrev, on June 9th, 2010
Jin Hyung Lee, Remy Durand, Viviana Gradinaru, Feng Zhang, Inbal Goshen, Dae-Shik Kim, Lief E. Fenno, Charu Ramakrishnan & Karl Deisseroth
Despite a rapidly-growing scientific and clinical brain imaging literature based on functional magnetic resonance imaging (fMRI) using blood oxygenation level-dependent (BOLD)1 signals, it remains controversial whether BOLD signals in a particular region can . . . → Read More: Global and local fMRI signals driven by neurons defined optogenetically by type and wiring
By thirdrev, on June 9th, 2010
Akiko Terauchi, Erin M. Johnson-Venkatesh, Anna B. Toth, Danish Javed, Michael A. Sutton & Hisashi Umemori
The differential formation of excitatory (glutamate-mediated) and inhibitory (GABA-mediated) synapses is a critical step for the proper functioning of the brain. An imbalance in these synapses may lead to various neurological disorders such as autism, schizophrenia, Tourette’s . . . → Read More: Distinct FGFs promote differentiation of excitatory and inhibitory synapses
By Dalila Pinto, on June 9th, 2010
Functional impact of global rare copy number variation in autism spectrum disorders
Nature 466, 368 (2010). doi:10.1038/nature09146
Authors: Dalila Pinto, Alistair T. Pagnamenta, Lambertus Klei, Richard Anney, Daniele Merico, Regina Regan, Judith … . . . → Read More: Functional impact of global rare copy number variation in autism spectrum disorders
By thirdrev, on June 4th, 2010
Pietro Fazzari, Ana V. Paternain, Manuel Valiente, Ramón Pla, Rafael Luján, Kent Lloyd, Juan Lerma, Oscar Marín & Beatriz Rico
Schizophrenia is a complex disorder that interferes with the function of several brain systems required for cognition and normal social behaviour. Although the most notable clinical aspects of the disease only become apparent during . . . → Read More: Control of cortical GABA circuitry development by Nrg1 and ErbB4 signalling
By thirdrev, on June 4th, 2010
Hongbo Jia, Nathalie L. Rochefort, Xiaowei Chen & Arthur Konnerth
In sensory cortex regions, neurons are tuned to specific stimulus features. For example, in the visual cortex, many neurons fire predominantly in response to moving objects of a preferred orientation. However, the characteristics of the synaptic input that cortical neurons receive to generate . . . → Read More: Dendritic organization of sensory input to cortical neurons in vivo
By thirdrev, on June 2nd, 2010
Peter Cameron, Makoto Hiroi, John Ngai & Kristin Scott
The detection of water and the regulation of water intake are essential for animals to maintain proper osmotic homeostasis1. Drosophila and other insects have gustatory sensory neurons that mediate the recognition of external water sources2, 3, 4, but little is known about the underlying . . . → Read More: The molecular basis for water taste in Drosophila
By thirdrev, on June 2nd, 2010
Jörn Niessing & Rainer W. Friedrich
The categorial nature of sensory, cognitive and behavioural acts indicates that the brain classifies neuronal activity patterns into discrete representations. Pattern classification may be achieved by abrupt switching between discrete activity states of neuronal circuits, but few experimental studies have directly tested this. We gradually varied . . . → Read More: Olfactory pattern classification by discrete neuronal network states
By thirdrev, on June 2nd, 2010
Jochen Schwenk, Michaela Metz, Gerd Zolles, Rostislav Turecek, Thorsten Fritzius, Wolfgang Bildl, Etsuko Tarusawa, Akos Kulik, Andreas Unger, Klara Ivankova, Riad Seddik, Jim Y. Tiao, Mathieu Rajalu, Johana Trojanova, Volker Rohde, Martin Gassmann, Uwe Schulte, Bernd Fakler & Bernhard Bettler
GABAB receptors are the G-protein-coupled receptors for ?-aminobutyric acid (GABA), the main inhibitory neurotransmitter in the . . . → Read More: Native GABAB receptors are heteromultimers with a family of auxiliary subunits
By thirdrev, on June 2nd, 2010
Yongfang Zhao, Daniel Terry, Lei Shi, Harel Weinstein, Scott C. Blanchard & Jonathan A. Javitch
Neurotransmitter:Na+ symporters (NSS) remove neurotransmitters from the synapse in a reuptake process that is driven by the Na+ gradient. Drugs that interfere with this reuptake mechanism, such as cocaine and antidepressants, profoundly influence behaviour and mood. To probe . . . → Read More: Single-molecule dynamics of gating in a neurotransmitter transporter homologue
By thirdrev, on June 1st, 2010
Junko Sasaki, Satoshi Kofuji, Reietsu Itoh, Toshihiko Momiyama, Kiyohiko Takayama, Haruka Murakami, Shinsuke Chida, Yuko Tsuya, Shunsuke Takasuga, Satoshi Eguchi, Ken Asanuma, Yasuo Horie, Kouichi Miura, Elizabeth Michele Davies, Christina Mitchell, Masakazu Yamazaki, Hirokazu Hirai, Tadaomi Takenawa, Akira Suzuki & Takehiko Sasaki
Phosphorylated derivatives of phosphatidylinositol, collectively referred to as phosphoinositides, occur in the cytoplasmic leaflet . . . → Read More: The PtdIns(3,4)P2 phosphatase INPP4A is a suppressor of excitotoxic neuronal death
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