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Stories from the dialysis comunity across the globe.
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Protein found to regulate red blood cell size and number. |
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EurekAlert: "This is one of the rare cases where we can explain a normal human-to-human variation," says Lodish, who is also a professor of biology and bioengineering at MIT. "In a sense, it's a window on human evolution. Why this should have happened, we have no idea, but it does." Lodish likens cyclin D3's role in RBCs to that of a clock. In some people, the clock triggers RBC progenitors to mature after four rounds of cell division, resulting in fewer but larger RBCs. In others it goes off after five cell division cycles, which leads to production of a greater number of smaller RBCs. In both cases, the blood usually has the same ability to carry oxygen to distant tissues.
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Caloric restriction in monkeys fails to result in increased longevity. |
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NY Times: The results of this major, long-awaited study, which began in 1987, are finally in. But it did not bring the vindication calorie restriction enthusiasts had anticipated. It turns out the skinny monkeys did not live any longer than those kept at more normal weights. Some lab test results improved, but only in monkeys put on the diet when they were old. The causes of death — cancer, heart disease — were the same in both the underfed and the normally fed monkeys.
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Manuscript describing effects of acetic acid and sodium diacetate on acid-base balance now available. |
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Artificial Organs: Kohn, Kjellstrand and Ing: Dual -concentrate bicarbonate-based hemodialysis: Know your buffers. Art Organs, 2012, in press.
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Check your computer for presence of Java plugin that can leave it vulnerable to hackers. |
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HP: Researchers have identified code that attacks machines by exploiting a newly discovered flaw in the latest version of Java. Once in, a second piece of software called "Poison Ivy" is released that lets hackers gain control of the infected computer, said Jaime Blasco, a research manager with AlienVault Labs. Several security firms advised users to immediately disable Java software -- installed in some form on the vast majority of personal computers around the world -- in their Internet browsers. Oracle says that Java sits on 97 percent of enterprise desktops.
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Renal denervation for advanced heart failure |
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EurekAlert: There was no change in contractile function of the left side of the heart in patients who received standard drug treatment. "The improvement of the contractile function of the left side of the heart by more than 10% in patients after renal denervation was a surprise," said Dr Táborský. "This parameter has practically not changed in patients treated by the classic drugs. The difference in response might be explained by a continuous decrease of the renal sympathetic activity in the complex pathophysiology of heart failure."
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