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Latest Cell communication Stories

2011-07-14 15:21:50

BK channels (large-conductance, Ca2+-dependent K+ channels) are essential for the regulation of important biological processes such as smooth muscle tone and neuronal excitability. New research shows that BK channel activation involves structural rearrangements formerly not understood. The study appears in the August 2011 issue of the Journal of General Physiology. Previous research pointed to a possible unified theory of activation gating in K+ channels, with the "activation gate" formed by...

2011-04-25 14:52:06

The latest Perspectives in General Physiology series examines the ion selectivity of cation-selective channels and transporters. The series appears in the May 2011 issue of the Journal of General Physiology (www.jgp.org). According to Perspectives Editor Olaf Andersen in his introduction, a key tool in most recent studies on ion selectivity has been the so-called "toy models," which emphasize the fluid-like features of the selectivity filter and allow for the isolation of key features....

2011-02-01 17:39:18

Those who believe in UFOs (unidentified flying objects) and extraterrestrial life frequently tell us, "We are not alone." We are not, but we do not have to look into space to find company. Our most frequent companions are the billions of bacteria that inhabit us "“ in our gut and genital tract, on our skins, our mucous membranes and elsewhere. Just as we are social creatures, bacteria needs that sense of community to take action. Scientists call this "quorum sensing." Dr. Bonnie...

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2010-12-15 07:46:02

They say it's the little things that count, and that certainly holds true for the channels in transmembrane proteins, which are small enough to allow ions or molecules of a certain size to pass through, while keeping out larger objects. Artificial fluidic nanochannels that mimic the capabilities of transmembrane proteins are highly prized for a number of advanced technologies. However, it has been difficult to make individual artificial channels of this size "“ until now. Researchers...

2010-12-02 06:00:00

MIDLAND, Texas, Dec. 2, 2010 /PRNewswire/ -- Dawson Geophysical Company (Nasdaq: DWSN) (the "Company"), today announced that it has placed an order with OYO Geospace for 10,000 single-channel OYO GSR units. The units will be delivered beginning in December with delivery to be complete by the end of January 2011. The 10,000 GSR channels are expected to be deployed on an approximately 600 square mile 3-D survey in the Haynesville Shale area of East Texas beginning in late December 2010....

2010-08-09 07:58:00

TEL AVIV, Israel, August 9, 2010 /PRNewswire/ -- A new study conducted in the department of Biochemistry and Molecular Biology at Tel Aviv University (TAU) elucidates the way in which toxic, yet essential, copper ions enter human cells. As a chemotherapy drug presumably enters the cells in a similar manner, the results of this study pave the way for the development of improved chemotherapeutic drugs. The groundbreaking work was published in the leading American scientific journal PNAS...

2010-05-28 13:25:14

A Florida State University College of Medicine researcher has discovered a new interaction between a cell signaling system and a specific gene that may be the cause of B-cell lymphoma. The finding suggests a similar interaction could be occurring during the development of other types of cancer, leading to further understanding of how cancer works "” and how it might be stopped. Yoichi Kato, an assistant professor in the Department of Biomedical Sciences, and his lab team found that the...

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2009-12-02 11:14:07

Before one of your muscles can twitch, before the thought telling it to flex can race down your nerve, a tiny floodgate of sorts"”called an ion channel"”must open in the surface of each cell in these organs to let in the chemical signals that spur the cell to action. New research at the National Institute of Standards and Technology (NIST) has allowed scientists to observe ion channels within the surface membrane for the first time, potentially offering insights for future drug...

2009-11-17 13:44:32

The December 2009 issue of the Journal of General Physiology (JGP) contains a paper by Christopher Ahern (The University of British Columbia, Vancouver) and colleagues that explores pore mutation effects in Shaker and other K+ channels using in vivo nonsense suppression technology. The study will be published online November 16 (www.jgp.org). According to Riccardo Olcese (UCLA) in a commentary accompanying the manuscript, the new research elegantly addresses the relation between pore...

2009-09-08 09:59:48

British scientists have uncovered new details about how the cells in our bodies communicate with each other and their environment: findings that are of fundamental importance to human biology. Cells 'talk' to each other through a complex process called 'signaling'. When these signals go wrong, it can lead to all kinds of diseases, including cancer, diabetes and arthritis, to name but a few. Scientists have long been able to see how cells send and receive signals at their outer skins, or...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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