Leon Goldstein, a professor of medical science at Brown Medical School, set out to plumb a molecular mystery.
Along with Mark Musch, a longtime University of Chicago collaborator, Goldstein conducted an experiment with the red blood cells of skates to understand how these skinny, graceful fish can swim from salt water to fresh water. For humans, such a drastic environmental change would prompt an equally drastic physiological change: Our cells would take in too much water, diluting blood and other body fluids and rapidly causing death. So how do skates do it?
Goldstein and Musch learned how cellular channels, or gates, spring into action when skate red blood cells become engorged with water. Vesicles, or tiny fluid-filled sacs, carry these gates up to the cell membrane. The vesicles are inserted into the membrane and a chemical process known as phosphorylation takes place. This activates the gates, which open to release excess water along with salts and other organic material.
Wendy Lawton | EurekAlert!
Studying mitosis' structure to understand the inside of cancer cells
19.02.2018 | Biophysical Society
Calcium may play a role in the development of Parkinson's disease
19.02.2018 | University of Cambridge
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
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