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Ad Wars Over Health Care Overhaul Heat Up

"The ad wars over the health care campaign are heating up once [again] this week," The New York Times reports. At a speech on Monday, Michael Steele, chairman of the Republican National Committee, released a party television ad "which its spokeswoman says will first be broadcast in Arkansas, North Dakota and Nevada." The ad "opens with a tiny infant, and spools out with a narrator"s voice saying: "They"ve loaned Barack Obama their future, without even knowing it. Trillions for rushed government bailouts and takeovers, banks, the auto industry." And then it continues, as children appear on the screen: "The biggest spending spree in our nation"s in history. And they"ll have to pay. The next big ticket item? A risky experiment with our health care. Barack Obama"s massive spending experiment hasn"t healed our economy. His new experiment risks their future and our health.""

How Mitochondria Get Their Membranes Bent

Mitochondria are the powerhouses of cells. Underneath their smooth surface they harbor an elaborately folded inner membrane. It holds a multitude of bottleneck like invaginations, which expand into elongated cavities (cristae). The narrow shape of the entrance or pore to the cristae ("crista junction") allows separation of the intracristal space and storage of molecules. Cytochrome c, for example, an important signaling protein in programmed cell death (apoptosis), is stored in this compartment. When apoptosis is triggered, the pores enlarge and cytochrome c is released into the cytosol. Thus, understanding of how the pore diameter and the shape of the inner membrane are regulated on a molecular basis is of great relevance to a better understanding of mitochondrial function in general. Recently, in cooperation with other research teams, the group of Prof. Andreas Reichert, who has been appointed as professor for Mitochondrial Biology to the Goethe University within the Cluster of Excellence Macromolecular Complexes in 2007, has identified two proteins linked in an antagonistic manner that are relevant for governing inner membrane structure.