Tag: "entry" at biology news

From sound analysis to nicotine addiction

... The Priority Programme "Mechanisms of gene vector entry and persistence" will attempt to systematically investigate and improve the foundations of somatic gene therapy using state of the art methods. Gene vectors can deliver genes into cells undamaged and in a targeted way, making them an attractive tool ...

Cure for common cold will need to wiggle to work, scientists say

...portant change in shape after the virus has gained entry into a cell. Once inside its victim, the pentagons open up like the trap door in the fabled Trojan horse, allowing the RNA within the virus to spew out and instruct the cell to begin producing more rhinovirus particles. This change is possible becaus...

Tracking a killer: Observing liver invasion by malarial parasites

... the discrete steps that facilitate the parasites' entry into the liver. To make these observations, the a... of blood flow, until they reached their portal of entry - a specialized cell called a Kupffer cell. They then watched as sporozoites traversed Kupffer cells...

Researchers develop assay that could be applied to drug screening

...y several viruses, including rabies, as a means of entry into healthy cells. The researchers led by David Zenisek, assistant professor in the Department of Cellular and Molecular Physiology at Yale School of Medicine, used live cell imaging and a novel fluorescence assay to visualize the formation of clath...

Two new retrovirusestransmitted from animalsidentified

...learly that hunting is an important bridge for the entry of novel retroviruses into humans. "Ongoing collaboration with hunters in central Africa gives us the potential to predict and prevent disease emergence. Given the incredible potential costs of a new human retrovirus into the general population, the ...

Yale scientist studying virus infections named Burroughs Wellcome Investigator

...raction of host and virus at the natural routes of entry for a variety of viruses that cause disease, including genital herpes and respiratory influenza infection. With this award, Iwasaki will identify the molecules that these cells use to alert the antigen presenting cells during viral infection in dist...

PNAS highlights for the week of May 9 - 13

...ts chances of catching known criminals at ports of entry by adjusting its biometric identification system to compensate for varying fingerprint image quality. Visitors now provide two index-finger fingerprints upon arrival, which are compared with database images from a watchlist of about 6 million crimina...

Study shows how retinoic acid enters a cell's nucleus

...ting vitamin A derivative retinoic acid (RA) gains entry into a cell's nucleus. When vitamin A enters a cell's cytoplasm (the portion that lies between the outer membrane and the nucleus), it can be converted to RA, a member of a group of compounds that enter a cell's nucleus and play a role in triggering...

Orientation and the egg

... contrast to those who feel that the site of sperm entry determines the orientation of the future body axes. "It would now make sense to base our future experiments on the premise that the mammalian egg neither has nor requires predetermination for successful development," explains Dr. Hiiragi....

Washington University chosen as NIH Program of Excellence in Nanotechnology

...ve agent and then a permeation peptide that allows entry into cells, and the nanomaterial becomes more sophisticated. Incorporated into the nanoparticle will be a chelater that will hold onto copper 64 enabling collaborator Michael Welch, Ph.D., professor of radiology in the Washington University Schoo...

Buying time through 'hibernation on demand'

...ds that won't heal. A wound to the skin allows the entry of oxygen, which initiates cell death. In healthy people, cell death subsides when a clot forms, which allows the healing process to begin. Exposing a diabetic's clot-resistant wound to an oxygen-free environment would speed the healing process. Whi...

How safety feels good

... given the choice of two rooms--one in which their entry triggered the safety signal--they overwhelmingly chose the "safety" room. Electrophysiological studies of the animals' brains revealed that the safety tones depressed activity in a region of the amygdala--the brain structure that processes emotions a...

Catching a sneak

...arge protein complex on the virus that enables its entry into the cell. Their work appeared in the Proceedings of the National Academy of Sciences, USA in March. These protein complexes recognize and bind to specific sites on the cellular membrane and mediate the fusion process, the first steps in virus i...

Liverpool scientists uncover how E.coli became lethal

... E. coli cells, which allows the viruses to gain entry into the bacteria. Once inside, the virus gives new genetic material to the bacterium, providing it with the ability to produce Shiga toxin. In order to reduce the likelihood of picking up the E. Coli bug, Dr Allison suggests avoiding undercooked m...

Biologists discover why 10% of Europeans are safe from HIV infection

...viral, haemorrhagic fever that used the CCR5 as an entry port into the immune system. Using computer modeling, they demonstrated how this disease provided the selection pressure that forced up the frequency of the mutation from 1 in 20,000 at the time of the Black Death to values today of 1 in 10. Lethal...

Urgent measures needed to retain our lead in pharmaceuticals

... in-house R&D into innovations aimed at new market entry and enhanced productivity. However, this has proved too costly in knowledge-intensive industries like pharmaceutical biotechnology. Prof. Phil Cooke, Cardiff University says "Nowadays R&D and innovation are outsourced to university research centres,...

Research advances quest for HIV-1 vaccine

...protein is thought to play a key role in mediating entry of HIV-1 into human cells. A research group led by Drs. Dennis R. Burton and Ian A. Wilson from The Scripps Research Institute in La Jolla, California performed a study examining the detailed molecular structure of the complex formed when 4E10 binds ...

The secret lives of whales

...ave taken heed, and instituted steps to reduce the entry of contaminants to the oceans....

Calit2 launches prize program to encourage bioinformatics research by UCSD undergraduates

...ndergraduates from these departments can apply for entry into the bioinformatics major during the first four weeks of every quarter. The undergraduate research program in bioinformatics has a similar scope underscored by the support of Calit2 on numerous projects. Calit2 hosts the HAP webserver (link bel...

Current human embryonic stem cell lines contaminated UCSD/Salk team finds

...ously unknown one that may also be relevant to the entry of other small molecules into cells. In addition, the JBC study showed how Neu5Gc attached to dietary proteins from animals could be incorporated into cells lining the stomach and colon, organs where consumption of red meat has been associated with ...

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(Date:11/6/2014)... is an asset for a predator. Except when that predator ... tiger beetle, relative to its size, is the fastest creature ... body lengths per second (at about five miles per hour). ... take the sprinting gold from the tiger beetle, a person ... The tiger beetle has a problem. At peak speeds, everything ...
(Date:11/5/2014)... Janeiro, Brazil -Individuals show great diversity in their ability ... and females greatly differ in their perceptual evaluation of ... smell tests. , Sex differences in olfactory ... and may be connected to one,s perception of smell, ... Thus, women,s olfactory superiority has been suggested to be ...
(Date:11/4/2014)... CORAL GABLES, Fla. (November 4, 2014) — Think about ... and ask: How do neighboring cells know that they ... cell and how do these tissues find the correct ... (UM) are answering these crucial questions. , In a ... tissues use to communicate with their surrounding neighbors, at ...
Breaking Biology News(10 mins):The tiger beetle: Too fast to see 2The female nose always knows: Do women have more olfactory neurons? 2The inside story: How the brain and skull stay together 2
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