Transport in Biological News

NSF provides $3.4 million to study climatically important Agulhas Current

... so far unstudied climatic impacts such as heat transport into the Southern Ocean via the unstable ... ground track, to obtain a three-year series of transport data. Using the in situ measurements gathered, ... the C-PIES, which can give information about the transport over the upper 2000 m, when combined with local ...

Protein regulates movement of mitochondria in brain cells

... cells because of their size and purpose need to transport mitochondria to distant sites within the cell to ... a critical role in regulating the movement or transport of mitochondria in neuron cells. The protein, ... primary role of HUMMR is to regulate the proper transport and distribution of mitochondria throughout the ...

Huntington's disease deciphered

... out synaptic connections, requiring a robust transport system. "Inhibition of neuronal transport is enough to explain what is happening in ... disease, Brady said. Activation of JNK3 reduces transport but does not eliminate it. Young neurons have a ...

Simulating pharmaceutical and personal care product transport

... the risk for leaching. Physically based solute transport simulation models are widely used in ... in macropores using data from experiments on the transport of three PPCPs (atenolol, carbamazepine, and ... macropores has a large impact on simulated solute transport for reactive compounds contained in LMB. This ...

Regulation of cell proliferation by the OGF-OGFr axis is dependent on nuclear localization signals

... OGFr remained in the nucleus for up to 8 days. transport through the nuclear pore and repression of cell ... from the cytoplasm to the nucleus, as well as transport receptors. The research team was comprised of ... may be envisioned that either a loss or a gain in transport shuttling pathways could contribute to the onset ...

Tiny but toxic: MBL researchers discover a mechanism of neurodegeneration in Alzheimer's disease

... system inside the neuron, Brady found. This transport system has motor proteins that move various kinds ... to its target. "Disruptions in the fast axonal transport system are probably key elements in the ... But we do know that changes in the fast axonal transport system are sufficient to cause the 'dying back' ...

Transport behavior of E. coli varies depending on manure source

... has led to several studies looking at the transport behavior of this important microorganism in ... of E. coli may exhibit different rates of transport in the environment. A scientist at the ... at Riverside, compared cell properties and transport behavior of 12 different E. coli isolates ...

Study predicts when invasive species can travel more readily by air

... volumes. "The problem is that as the global transport networks expand, we're getting more and more ... Tatem said it can be a combination of goods transport and people bringing things aboard either ... about expected trends in the accidental transport of invasive species among continents. ...

GEN reports on strategies to overcome blood-brain barrier

... no harm'." One technology for enabling active transport of small molecule drugs across the BBB involves ... the solute carrier (SLC) transporter superfamily. transport of small molecules across the BBB by these membrane proteins is known as carrier-mediated transport (CMT). In order to design drugs that utilize ...

Mayo Clinic: Brain disorder suggests common mechanism may underlie many neurodegenerative diseases

... example, dynein, dynactin and kinesin) that drive transport from distant nerve terminals to the cell body may ... means to explore the breakdown in the microtubule transport system in each of these diseases," says Dr. ... may be caused by a progressive breakdown in this transport system." Understanding Perry syndrome may shed ...

Strange travels

... Madison, WI, December 1, 2008 transport phenomena in highly heterogeneous media can be ... fundamental and practical interest. Anomalous transport occurs in semiconductor physics, plasma physics, ... of four articles in Special Section: Nonclassical transport of the November 2008 issue of Vadose Zone ...

Food can affect a cell in the same way hormones do

... In addition to receptors, cells also have transport proteins that can carry nutrients through the ... have been discovered that sense and transport food simultaneously. Now, VIB researcher Griet ... often, proteins that are found in yeast − transport proteins and receptors, for example − have ...

Maintaining the brain's wiring in aging and disease

... wires. They are homes to the world's smallest transport tracks. Every one of our hundred billion nerve ... hours. During healthy ageing this miniature transport system undergoes a steady decline, but the ... their normal diameter. These swellings disrupt transport but not, it seems, completely. Enough material ...

Getting warmer? Prehistoric climate can help forecast future changes

... the strong influence of ocean temperatures, heat transport from equatorial regions, and greenhouse gases on ... of altered atmospheric CO 2 and oceanic energy transport systems," said USGS scientist Harry Dowsett, also ... of several factors, including increased heat transport from equatorial regions to the poles and ...

Scripps research scientists identify blood component that turns bacteria virulent

... burgdorferi, and Vibrio cholera have bicarbonate transport pathways similar to B. anthracis and thus are ... bacteria. Her interest in bicarbonate transport pathways as bacteria virulence signaling ... use the energy of ATP hydrolysis to transport various substrates across cellular membranes. In ...

Workshop on environmental nanoparticles at UD, Nov. 10-11

... ethicists and science policy experts on the fate, transport and human and environmental health effects of ... the characterization, reactivity, fate and transport of nanoparticles, as well as their impacts on ... not well understood. Experts on the fate and transport of nanoparticles will discuss what happens to ...

AGU journal highlights -- Oct. 16, 2008

... these pollutants undergo long-range atmospheric transport that introduces them to the oceans, where they ... seasonal variability and long-range atmospheric transport potentials, the authors find that the number of ... occurring in the water column. For example, the transport of PCBs to the remote Arctic is maximized during ...

Iron-moving malfunction may underlie neurodegenerative diseases, aging

... in the journal Nature . An interest in iron transport led Xu to investigate ML4, another symptom of ... he and his collaborators reasoned, impaired iron transport could explain both the anemia and the other ... cases. To explore the possible role of iron transport in the disease, Xu's group focused on a protein ...

Simulations help explain fast water transport in nanotubes

... the physical mechanism behind the rapid transport of water in carbon nanotubes, scientists at the ... and nano-manufacturing. "Extraordinarily fast transport of water in carbon nanotubes has generally been ... at the U. of I. "We can now show that the fast transport can be enhanced by orienting water molecules in a ...

Scavenger birds chew the fat

... who do not feed their young by regurgitation but transport prey remains to the nest in their feet and bills. ... bones were discounted as being too difficult to transport and swallow. As he had expected, bones left in ... the bones with the highest fat content to transport to their nests. Margalida concludes that ...

Syracuse University partners with Serum Institute of India to develop vaccines for children

... it through the digestive system unharmed, and transport it through the wall of the small intestine where ... that would make good targets for attaching a transport vehicle." Problem is, you can't actually see ... could potentially be used as binding sites for transport molecules," Allis says. Unlike the tetanus ...

N.Y. research team discovers how antidepressants and cocaine interact with brain cell targets

... forms that the molecule must adopt to accomplish transport activity," says Dr. Javitch. The main ... filled simultaneously and cooperate in order for transport to be driven across the cell membrane. For these ... bind in the outer one of two sites, and stop the transport mechanism, leaving the messenger molecule outside ...

UCLA researchers clarify function of glucose transport molecule

... (SGLTs), which pump glucose into cells. These transport proteins are used in the treatment of chronic ... three-dimensional picture of a glucose transport protein. The research is published in today's ... evidence for the mechanism underlying transport of glucose and neurotransmitters (such as ...

NASA presentations at American Geophysical Union Joint Assembly

... a variety of instruments shows that increased transport of biomass pollution due to climate change can be ... will discuss a modeling study of the long-range transport of pollution from Europe, showing that European ... Reach Antarctica" A Case Study of Long-Range transport over the Southern Ocean Time: Wed., May 28, 3:15 ...

Study in Science cites impact of anthropogenic nitrogen on ocean biology, atmospheric CO2

... are particularly interested in the long-range transport of pollutants from the continents to the oceans ... development and testing of the global chemical transport models used in the recent climate assessment ... increased greatly over the last 100 years. The transport of these compounds to the oceans, mostly through ...

Experts tackle shipment issues for beneficial radiation sources

... remaining 23 cases concerned sea, rail and road transport modes. In terms of the most common types of ... Mrabit, Head of the Regulatory Infrastructure and transport Safety Section, highlighted the importance of ... "There has been no significant accident from transport of radioactive material over the past half ...

Arable land can have a negative impact on air quality

... of the processes that lead to the formation and transport of such large quantities of dust. Writing in the ... and Dresden is the first documentation of dust transport from the Ukraine. Blown by the wind It ... for years been investigating the long-distance transport of particulates in the troposphere, i.e. the ...

Environmental fate of nanoparticles depends on properties of water carrying them

... to the solution conditions. Research into the transport and retention of C60 nanoparticles was reported ... theory will have to be modified to explain the transport of nanoparticles in soil, Pennell said. The ... Younggang Wang are now studying more complicated transport issues in real soils and with other types of ...

Bloodless worm sheds light on human blood, iron deficiency

... involved in heme absorption. Once you understand transport of heme, you can more effectively deliver it to ... difficult process to control in the study of heme transport pathways, as Hamza learned when he first studied ... and C. elegans, were important regulators of heme transport in the worm. To test their findings in an ...

AGU Journal Highlights -- March 19, 2008

... is dispersed and is a key input into aerosol transport models. Currently, spaceborne lidar studies can ... be combined to yield a better picture of smoke transport during a wildfire, Kahn et al. study the fires ... troposphere. Because accurate knowledge of smoke transport patterns can help scientists understand the ...

IAEA helps recover stray radioactive sources in Nigeria

... a team of nuclear safety experts to secure and transport several potentially hazardous radioactive sources ... recover the radiological sources and ship them in transport containers for return to Canada or processing at ... during the mission, with police accompanying the transport of the sources at all times. NNRA staff and bomb ...

Media highlights in the January issues of Biophysical Journal

... perspective to the knowledge of vesicle transport regulation. Shuttling vesicle-embedded proteins ... on rat kidney cells favor this view. The vesicle transport is accelerated when the network fibers relax. In ... relaxed cell is doing much better in vesicle transport compared to a cell under tension. This finding ...

Between water and rock -- a new science

... Toxic metal location, distribution, and transport in the Clark Fork River, the largest EPA Super ... U.S., has been Hochellas research for many years. transport of heavy metals is now the subject of Kelly Haus ... learns about the role of nanoparticles in metal transport will be applicable to rivers worldwide, Hochella ...

'Knocking out' cell receptor may help block fat deposits in tissues, prevent weight gain

... may help scientists develop drugs to reduce fat transport to adipocytes (fat cells) in the body and prevent ... underlying biological mechanisms that control fat transport in the body. Using genetically altered mice, ... this molecule directly impacts the rate of fat transport in the body, so with further study it could be a ...

New membrane strips carbon dioxide from natural gas faster and better

... stable plastics usually have very low gas transport rates through them, Park said. Everyone had ... said, These membranes also show the ability to transport ions since they are doped with acid molecules, ... still needs to be done to understand gas and ion transport through these membranes. ...

Conference on sustainable transportation is Oct. 29-31

... regions; Health and safety aspects of our transport system; Alternative fuels -- research to date ... Strategies for financing and managing the transport system; and Legislative criteria for sustainable transport and development. The conference will be held ...

AGU journal highlights -- Sept. 6, 2007

... The permeability of sea ice and its ability to transport brine are important to many problems in ... demonstrates that sea ice displays universal transport properties similar to fluid transport in some crustal rocks, though over a much ...

Deep into the machinery of adult fragile X

... that normally attach to the RNA as part of the transport process. Such binding would sop up all of the transport protein, crippling transport and clogging the cell with inclusions made of ...

Dominant cholesterol-metabolism ideas challenged by new research

... researchers investigating cholesterol and lipid transport has performed experiments that cast serious ... is either actively involved in the transmembrane transport of phospholipids or regulates another enzyme ... "that the ABCA1 enzyme was not involved in the transport of phospholipids across the cell membrane under ...

Study by NTU professors provides important insight into apoptosis or programmed cell death

... the nuclear-cytoplasmic boundaries that serves as a track and directs the transport of proteins and other molecules into and out of the nucleus. Hence, when ... is reduced in the nucleus, the RanGTP gradient collapses and the nuclear transport machinery subsequently shuts down. Too little or too much apoptosis ...