米国議会が先週発表したヒト胎児組織を使った研究に関する調査報告では、事実が極めてゆがめられている。
Fantasy politics p.133
A US congressional investigation has distorted the truth about research that uses human fetal tissue — and sets a troubling precedent.
doi: 10.1038/541133a
A US congressional investigation has distorted the truth about research that uses human fetal tissue — and sets a troubling precedent.
doi: 10.1038/541133a
It may sound vague, but the term represents real and vital concepts.
doi: 10.1038/541133b
doi: 10.1038/541134a
iCarbonX believes its cutting-edge partners and generous funding give it the upper hand.
doi: 10.1038/541141a
Updated version of DeepMind's AlphaGo program behind mystery online competitor.
doi: 10.1038/nature.2017.21253
US National Science Foundation looks to slash funding for Puerto Rico’s Arecibo Observatory.
doi: 10.1038/541143a
Spice extract dupes assays and leads some drug hunters astray.
doi: 10.1038/541144a
Environmental scientists plan to push for policy changes but are nervous about losing current protections.
doi: 10.1038/541145a
The agency's next leader will have an opportunity to reshape its approach to regulation.
doi: 10.1038/nature.2017.21256
ニュージーランドは、侵略的外来捕食動物を2050年までに駆除するという大胆な計画を立てているが、果たしてうまくいくのだろうか。
doi: 10.1038/541148a
胃の主要部分に似た構造をヒト胚性幹細胞からin vitroで成長させるプロトコルが開発された。これは、胃の発生に関する知見が得られる進歩である。
doi: 10.1038/nature21110
超疎水性表面では、水と固体材料の摩擦抵抗が低減するが、この効果は一時的であることが多い。今回、摩擦抵抗の持続的低減が実現された。これは船舶やパイプラインの流れに応用できると思われる。
doi: 10.1038/541161a
ヒト食道がんの総合的なゲノム解析および分子解析によって、既存の薬物の標的となり得る異常が明らかになり、こうした腫瘍のサブタイプへの分類が現状のままでは不十分であることが示された。
doi: 10.1038/nature21112
レーザーの光は、定在波の形で閉じ込められる。こうした波を操作することによって、閉じ込めを増強する光学系が設計され、高品質ビームを放射する小型レーザーが得られた。
doi: 10.1038/541164a
Piezo2タンパク質は、肺体積の変化を感知し、さまざまなニューロンに作用してこの情報を脳に運ぶことが今回明らかになった。この知見により、機械刺激感知機構におけるPiezo2の役割がまた1つリストに加わった。
doi: 10.1038/nature21111
血液を若返らせる造血幹細胞は、アミノ酸バリンの食事供給源に依存していることが明らかになり、この知見を利用することで、マウスの骨髄移植の毒性が低減されることが分かった。
doi: 10.1038/nature21106
同位体データから、直近の氷期に伴う乾燥期に、降雨の変化に敏感な地域のアアマゾン森林が生き残ったことを示唆する証拠が得られ、アマゾンの乾燥状態に関する議論に決着がつけられた。
doi: 10.1038/541167a
The Cancer Genome Atlas Research Network report integrated genomic and molecular analyses of 164 squamous cell carcinomas and adenocarcinomas of the oesophagus; they find genomic and molecular features that differentiate squamous and adenocarcinomas of the oesophagus, and strong similarities between oesophageal adenocarcinomas and the chromosomally unstable variant of gastric adenocarcinoma, suggesting that gastroesophageal adenocarcinoma is a single disease entity.
doi: 10.1038/nature20805
The mechanoreceptor Piezo2 is required for both the Hering–Breuer inflation reflex in adult mice and the inflation of the lungs of newborn mice.
doi: 10.1038/nature20793
Wnt signalling is shown to be required for specification of the gastric fundus in mice, and was used to develop human gastric organoids with functional fundic cell types.
doi: 10.1038/nature21021
Simulations of Pluto suggest that the sharp ridges in the Tartarus Dorsa region of Pluto are penitentes that formed over the past tens of millions of years.
doi: 10.1038/nature20779
Squeezed light is used to sideband cool the motion of a macroscopic mechanical object below the limit imposed by quantum fluctuations.
doi: 10.1038/nature20604
Lasing action from an optically pumped bound state in the continuum cavity is demonstrated, of both fundamental interest and with applications from optical trapping to biological sensing and quantum information.
doi: 10.1038/nature20799
By investigating ring currents, a six-porphyrin nanoring molecule is shown to be antiaromatic in its 4+ oxidation state and aromatic in its 6+ oxidation state.
doi: 10.1038/nature20798
Oxygen isotope records derived from stalagmites in the eastern Amazon reveal that rainfall was about half of today’s during the Last Glacial Maximum but half again as much during the mid-Holocene, broadly coinciding with global changes in temperature and carbon dioxide.
doi: 10.1038/nature20787
The chimaeroids are one of the four principal divisions of the living jawed vertebrates and their evolutionary origins have been hard to discern; here, the study of a skull of the extinct shark Dwykaselachus shows that the chimaeroids nest among the once fairly common and widespread symmoriiforms.
doi: 10.1038/nature20806
The genome sequence and genetic diversity of European ash (Fraxinus excelsior) trees reveals the species’ varying susceptibility to ash dieback.
doi: 10.1038/nature20786
Structural differences in 40- and 42-residue-long amyloid-β fibrils seeded in vitro from the cortical tissue of patients with different clinical subtypes of Alzheimer’s disease suggest that different fibril structures form in different disease variants and with different peptide lengths.
doi: 10.1038/nature20814
A pathway triggered by chronic severe hypoxia boosts regeneration of injured hearts in adult mice.
doi: 10.1038/nature20173
The polypeptide SPAR is encoded by a long non-coding RNA, localizes to the late endosome and lysosome, and regulates muscle regeneration by inhibiting mTORC1.
doi: 10.1038/nature21034
Screening mutant mouse lines using a genome-wide in vivo assay identifies microenvironmental regulators of metastatic colonization and defines SPNS2 as an important mediator of lung colonization.
doi: 10.1038/nature20792
The first genome-wide map of human chromatin conformation at the 1–3 nucleosome (50–500 base pair) scale, obtained using ionizing radiation-induced spatially correlated cleavage of DNA with sequencing (RICC-seq), which identifies spatially proximal DNA–DNA contacts.
doi: 10.1038/nature20781
Femtosecond XFEL crystallography is used to identify dynamic changes in the adenine riboswitch aptamer domain, with at least four states identified in real time, two in the apo form before binding and two with the ligand bound.
doi: 10.1038/nature20599