Archives de 7 août 2008
Grosskurth SE, Bhattacharya D, Wang Q, Lin JJ-C (2008 ) Emergence of Xin Demarcates a Key Innovation in Heart Evolution. PLoS ONE 3(8): e2857. doi:10.1371/journal.pone.0002857
Liu L, Zhu S, Gong Z, Low BC (2008 ) K-ras/PI3K-Akt Signaling Is Essential for Zebrafish Hematopoiesis and Angiogenesis. PLoS ONE 3(8): e2850. doi:10.1371/journal.pone.0002850
Walls JR, Coultas L, Rossant J, Henkelman RM (2008) Three-Dimensional Analysis of Vascular Development in the Mouse Embryo. PLoS ONE 3(8): e2853. doi:10.1371/journal.pone.0002853
Tectonics shown to drive changes in biodiversity, no kidding :-D
Measuring Cancer Therapy Success With Oxygen: « Scientists have identified a way to predict very early in the treatment process the outcome of radiation and chemotherapy for cervical cancer patients — based on oxygen levels within the tumor. »
Shape, Not Just Size, Impacts Effectiveness Of Emerging Nanomedicine Therapies: « In the budding field of nanotechnology, scientists already know that size does matter. But now, researchers have shown that shape matters even more — a finding that could lead to new and more effective methods for treating cancer and other diseases, from diabetes and multiple sclerosis to arthritis and obesity.
How Bacteria Attach To Human Tissues During Infection Process: New Clues: « Scientists have helped to reveal more about the way bacteria can attach to human tissues. The researchers studied the way a protein found on the surface of the bacteria Staphylococcus aureus binds to a human protein called fibronectin. Their discovery is an important step in understanding how bacteria attach to the surface of blood vessels during infection.
Water Is ‘Designer Fluid’ That Helps Proteins Change Shape: « According to new research, old ideas about water behavior are all wet. Ubiquitous on Earth, water also has been found in comets, on Mars and in molecular clouds in interstellar space. Now, scientists say this common fluid is not as well understood as we thought.
‘Virophage’ suggests viruses are alive
Evidence of illness enhances case for life.
by Helen Pearson
Giant mamavirus particles (red) and satellite viruses of mamavirus called Sputnik (green).REF. 1
The discovery of a giant virus that falls ill through infection by another virus1 is fuelling the debate about whether viruses are alive.[suite]