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What Is Embolism? What Are The Different Types Of Embolism?
An embolism - from the Greek ç©mbolos meaning "stopper" or "plug" - is the term that describes a condition where an object called an embolus is created in one part of the body, circulates throughout the body, and then blocks blood flowing through a vessel in another part of the body. Emboli (plural of embolus) are not to be confused with thrombi (plural of thrombus), which are clots that are formed and remain in one area of the body without being carried throughout the bloodstream.
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Gliomas Exploit Immune Cells Of The Brain For Rapid Expansion
Gliomas are among the most common and most malignant brain tumors. These tumors infiltrate normal brain tissue and grow very rapidly. As a result, surgery can never completely remove the tumor. Now, the neurosurgeons Dr. Darko S. Markovic (Helios Klinikum Berlin-Buch) and Dr. Michael Synowitz (Charit̩) as well as Dr. Rainer Glass and Professor Helmut Kettenmann (both Max Delbr̿ck Center for Molecular Medicine, MDC, Berlin-Buch), have been able to show that glioma cells exploit microglia, the immune cells of the brain, for their expansion (PNAS Early Edition)*.
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Research Reveals What Drives Lung Cancer's Spread
A new study by researchers at Memorial Sloan-Kettering Cancer Center (MSKCC) reveals the genetic underpinnings of what causes lung cancer to quickly metastasize, or spread, to the brain and the bone the two most prominent sites of lung cancer relapse. The study will be published online in the journal Cell on July 2.
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Biological 'Fountain Of Youth' Discovered In New World Bat Caves

Scientists from Texas are batty over a new discovery which could lead to the single most important medical breakthrough in human history - significantly longer lifespans. The discovery, featured on the cover of the July 2009 print issue of The FASEB Journal, shows that proper protein folding over time in long-lived bats explains why they live significantly longer than other mammals of comparable size, such as mice. "Ultimately we are trying to discover what underlying mechanisms allow for some animal species to live a very long time with the hope that we might be able to develop therapies that allow people to age more slowly," said Asish Chaudhuri, Professor of Biochemistry, VA Medical Center, San Antonio, Texas and the senior researcher involved in the work. Asish and colleagues made their discovery by extracting proteins from the livers of two long-lived bat species (Tadarida brasiliensis and Myotis velifer) and young adult mice and exposed them to chemicals known to cause protein misfolding. After examining the proteins, the scientists found that the bat proteins exhibited less damage than those of the mice, indicating that bats have a mechanism for maintaining proper structure under extreme stress. "Maybe Juan Ponce De LeÃön wasn"t too far off the mark when he searched Florida for the Fountain of Youth," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal. "As it turns out, one of these bat species lives out its long life in Florida. Since bats are rodents with wings, this chemical clue as to why bats beat out mice in the aging game should point scientists to the of this elusive fountain." Details: Adam B. Salmon, Shanique Leonard, Venkata Masamsetti, Anson Pierce, Andrej J. Podlutsky, Natalia Podlutskaya, Arlan Richardson, Steven N. Austad, and Asish R. Chaudhuri. The long lifespan of two bat species is correlated with resistance to protein oxidation and enhanced protein homeostasis FASEB J. 2009 23: 2317-2326. doi: 10.1096/fj.08-122523 Cody Mooneyhan Federation of American Societies for Experimental Biology


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