- The Hedgehog Pathway Promotes Blood-Brain Barrier Integrity and CNS Immune Quiescence
[作者:Alvarez, JI; Dodelet-Devillers, A; Kebir, H; Ifergan, I; Fabre, PJ; Terouz, S; Sabbagh, M; Wosik, K; Bourbonniere, L; Bernard, M; van Horssen, J; de Vries, HE; Charron, F; Prat, A,期刊:Science, 页码:1727-1731 , 文章类型: Article,,卷期:2011年334-6063]
- The blood-brain barrier (BBB) is composed of tightly bound endothelial cells (ECs) and perivascular astrocytes that regulate central nervous system (CNS) homeostasis. We showed that astrocytes secrete Sonic hedgehog and ...
- Isotopic Evidence for Massive Oxidation of Organic Matter Following the Great Oxidation Event
[作者:Kump, LR; Junium, C; Arthur, MA; Brasier, A; Fallick, A; Melezhik, V; Lepland, A; Crne, AE; Luo, GM,期刊:Science, 页码:1694-1696 , 文章类型: Article,,卷期:2011年334-6063]
- The stable isotope record of marine carbon indicates that the Proterozoic Eon began and ended with extreme fluctuations in the carbon cycle. In both the Paleoproterozoic [2500 to 1600 million years ago (Ma)] and Neoprote...
- Voyager Measurements of Hydrogen Lyman-alpha Diffuse Emission from the Milky Way
[作者:Lallement, R; Quemerais, E; Bertaux, JL; Sandel, BR; Izmodenov, V,期刊:Science, 页码:1665-1669 , 文章类型: Article,,卷期:2011年334-6063]
- Doppler-shifted hydrogen Lyman-alpha (Ly alpha) emission from galaxies is currently measured and used in cosmology as an indicator of star formation. Until now, the Milky Way emission has not been detected, owing to far ...
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