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Tag: "permits" at biology news

HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs

...type they were studying. Pore function in channels permits the exchange of biochemical signals within and between cells. After hearing of a case of heart rhythm disturbances in a patient taking protease inhibitors, the researchers looked for evidence of other patients with similar experiences. To do this, th...

Not-for-profit publishers call NIH public access rule a missed opportunity

...ghWire Publisher Michael A. Keller. "HighWire also permits free links to over 389,000 other articles that are listed as references. Other not-for-profit publishers also offer free access." "NIH's rule is limited relative to what these not-for-profit publishers are currently doing with Google and patient gro...

Bobbing birds do it for a reason

...Head-bobbing behavior, so characteristic of birds, permits the close and stable examination of objects in view during the immobile phase and allows the birds to change their point of gaze and probably to gather a sense of space and of the relative positions of objects when the head is thrust forward. ...

How A Latent Virus Eludes Immune Defenses

...of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Citation: (2005) How a Latent Virus Eludes Immune Defenses. PLoS Biol 3(4): e149. ...

Touching Molecules With Your Bare Hands

...of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Citation: (2005) How a Latent Virus Eludes Immune Defenses. PLoS Biol 3(4): e149. ...

Virologists make major step towards understanding the process of HIV infection

...tional characteristics of the virus. The labeling permits scientists to observe the behavior of the virus when it enters a host cell, during replication and when it leaves a cell. This is a major step towards understanding the process of HIV infection. Modern imaging technologies facilitate real-time obser...

New Species of Coral Discovered Off Southern California

...tional characteristics of the virus. The labeling permits scientists to observe the behavior of the virus when it enters a host cell, during replication and when it leaves a cell. This is a major step towards understanding the process of HIV infection. Modern imaging technologies facilitate real-time obser...

Critical step traced in anthrax infection

...of forming a pore in a cellular membrane. The pore permits the other two proteins, lethal factor (LF) and edema factor (EF), to enter the cell interior, where the factors interfere with metabolic processes, leading to death of the infected individual. Details surrounding this process are continuing to be un...

Scientists reveal how disease bacterium survives inside immune system cell

...tophilum deviates from that of S. aureus, and thus permits the HGA agent to survive. "This study has given us a global model of how bacteria can inhibit neutrophil apoptosis," says Dr. DeLeo. "Our next step is to look at specific human genes or gene pathways within this model and try to determine which of t...

Deep sleep short-circuits brain's grid of connectivity

...hnology - transcranial magnetic stimulation - that permits precise, non-invasive activation of small regions of the brain. Subjects are also equipped with a cap of electrodes to monitor the brain's electrical activity so that the cell signals elicited by the quick bursts of electricity can be tracked. In su...

Frog peptides block HIV in lab study

...hnology - transcranial magnetic stimulation - that permits precise, non-invasive activation of small regions of the brain. Subjects are also equipped with a cap of electrodes to monitor the brain's electrical activity so that the cell signals elicited by the quick bursts of electricity can be tracked. In su...

MERIS monitoring tracks planetary photosynthesis levels

...eveal global photosynthesis activity on land. This permits researchers to trace the state of health of terrestrial plant cover, identifying areas under stress and assessing damage from drought or fires. An algorithm developed by the European Commission's Joint Research Centre (EC-JRC) in Ispra, Italy is the...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

...st for arguing that developers should not be given permits to clear areas where the endangered species has not been seen before. "Our results support his contention that the panther is a generalist. You certainly don't want to give up areas to developers by assuming that panthers cannot occupy them," said P...

Learning how SARS spikes its quarry

...e of target cells. Attachment of the spike protein permits the virus to fuse with a host cell and inject its RNA to infect the cell. A detailed understanding of how the spike protein complexes with its receptor, ACE2 (angiotensin-converting enzyme 2), could have important clinical implications. "The intere...

Drug resistant avian influenza viruses more common in Southeast Asia than North America

... channel located in the envelope of the virus that permits hydrogen ions (protons) to enter the flu virion. This influx of protons allows the virus to shed its coat after it enters a cell-an essential step in the replication of the virus. Amantadine inhibits the function of the M2 protein and thus stops vira...

The earliest animals had human-like genes

...f bones, teeth, or tissues. But DNA sequencing now permits scientists to make comparisons of the genetic code and read evolutionary history from it. An international consortium involving researchers from EMBL, the UK, France and the United States has now sequenced a part of the Platynereis genome. "The fract...

RNA splicing occurs in nerve-cell dendrites

...nsitive technologies developed in their lab, which permits the detection and quantification of RNA splicing as well as the translated protein in single isolated dendrites. "In addition to showing that mRNA splicing occurs in dendrites in which we added mRNA, we also detected the resulting protein," notes Eb...

UW scientists unravel critical genetic puzzle for flu virus replication

... the influenza virus has a specific mechanism that permits it to package its genetic materials" as it creates its infectious particles, says Yoshihiro Kawaoka, a University of Wisconsin-Madison School of Veterinary Medicine professor and a leading influenza researcher. Kawaoka is also a professor at the Univ...

Birds that make teeth

...d2 strain of chicken harbors a genetic change that permits tooth formation in both the upper and lower jaw of embryonic birds. These teeth show similar developmental position as mammalian teeth and are associated with similar molecular instructions. Furthermore, when comparing the initial development of the ...

Scientists design potent anthrax toxin inhibitor

...ing as the binding sites of the PA molecule, which permits a firmer bond between the two, explains Dr. Kane. When the inhibitor is bound tightly to PA, the subsequent steps of enzyme entry cannot occur and the toxin is effectively neutralized. The investigators tested the anthrax inhibitor in rats. When gi...

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