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Tag: "start" at biology news

Enzyme's newly discovered role may make it target for arthritis treatment

...rete chemicals that attract other immune cells and start the local inflammatory process. Over time, the excessive accumulation of immune cells can lead to tissue and cartilage damage in joints, causing pain and limiting mobility. "Cathepsin G affects a very early step in this kind of immune response, so i...

Study finds adult stem cells can replicate

...rete chemicals that attract other immune cells and start the local inflammatory process. Over time, the excessive accumulation of immune cells can lead to tissue and cartilage damage in joints, causing pain and limiting mobility. "Cathepsin G affects a very early step in this kind of immune response, so i...

Program finds lost genes in nematode genome

...e once. "I've been building a case that we should start with predictions," he said. "Each gene sequence is more expensive, but because of the lower redundancy you end up with much better coverage of the genome for the same money." Chess as metaphor Brent said that some genome researchers have been reluc...

Combination therapy leads to partial recovery from spinal cord injury in rats

...lls, and they plan to test similar techniques that start with undifferentiated embryonic stem (ES) cells instead of glial-restricted precursor cells. ES cells would be better for human studies than glial-restricted precursors because ES cells can be more readily obtained, Dr. Whittemore says. [1]Cao Q, Xu...

Small worm yields big clue on muscle receptor action

...receptor, see if it's localized at the synapse and start to mutagenize animals to figure out what makes that receptor stay or make it to the synapse," she added. Richmond said the finding might have direct relevance to humans because the ACR-16 receptor is very similar to the alpha-7 nicotinic receptor in...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...Banfield said. "The exciting thing to me is we can start to study the organisms in situ, and that's really a big step forward." Of the 2,033 proteins detected, 572 were unique to the biofilm bacteria. One of the new proteins produced by the Leptospirillum group II bacterium appears to be a key protein in ...

Researchers develop promising new gene network analysis method

...e c-Myc switch is thrown, thousands of other genes start pumping out proteins or switching on other genes, which activates still more genes. One way to study this web of connections would be to set off the chain reaction and study it over time. To make that happen, Brown researchers came up with a clever e...

Mechanism for the captation of nutrients in plants- unknown to date

...the cell started to capture saccharose in order to start functioning. That is, for these first 90 minutes, the saccharose penetrates using the transporter mechanism while, parallely, the endocitosis phenomenon is activated to form microvesicles. Subsequently, the cell starts to capture huge quantities of s...

Researchers discover mechanism for multiplying adult stem cells

...en adult stem cells are isolated, they immediately start growing into their designated tissue type. It would be ideal if scientists had a way to take a liver adult stem cell and multiply it in a dish without having it form mature liver tissue. This experiment showed that when Oct4 was reactivated, the adu...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

...eggs from the clutch. With that bite, the embryos start to wiggle frantically. As the snake moves to take another morsel, the embryos rupture their egg capsules, drop into the water, and, as tadpoles, swim away to safety -- hatching one to three days earlier than they would have if left undisturbed. What...

Motor transport in bio-nano systems

...hen several motors move along the same track, they start to bump into each other and to form molecular traffic jams. These jams are similar to the jams on our highways but there are also important differences. First, the molecular motors cannot 'see' other motors and their cargo before they bump into them....

Achilles heel of the herpes virus possibly found

...eel in interactions of herpes virus with a cell to start infection. We can use the receptor molecule to try to understand the process and perhaps combat infection at this vulnerable site," says A. Oveta Fuller, Ph.D. the leader of the U-M team, senior author on the two papers and an associate professor in ...

Scientists succeed in cloning human embryos from eggs matured in the lab

... just before the maternal and paternal chromosomes start to pair up in preparation for the first cell division. In the case of these oocytes they had undergone a pseudo-fertilisation because the pronuclei were derived from whole foreign nuclei, each one with a complete set of homologous [matching] chromoso...

Invitrogen Launches i-Path -- A Unique Systems Biology Platform at BIO 2005

... just before the maternal and paternal chromosomes start to pair up in preparation for the first cell division. In the case of these oocytes they had undergone a pseudo-fertilisation because the pronuclei were derived from whole foreign nuclei, each one with a complete set of homologous [matching] chromoso...

Purdue scientists may have found key to halting spinal cord damage

..." he said. "The trouble is that when free radicals start attacking tissue, it happens in a tiny fraction of a second, after which they are gone. But the acrolein that these attacks release survives in our bodies much longer, for several days at least, and its toxicity is well documented." For example, acr...

A protein in the eye may prevent immune response and protect eyes from disease

...sponse, other types of T Cells are stimulated that start the immune attack, inflammation, and tissue destruction. Since the F4/80 protein was identified as a crucial player in the development of immune privilege, the Schepens' team postulated that the protein had an important role in immune regulation. In...

New tool reveals secrets of migrating cells

...rs) work properly. Once they pass that test, they start wandering around in the cortex looking for the second test, which is to bind precisely to a protein called the major histocompatibility complex (MHC). These cells, the researchers think, are the meanderers. Only about one percent of thymocytes pass b...

Researchers seek to discover what really happens when a virus enters the body

...ting profiles to better predict their behavior and start appropriate treatment. Ultimately, their work should contribute to what starts an immune response. And as NIH's Matzinger says, knowing what initiates an immune response will affect and, researchers hope, improve medical treatment. Bell is an ass...

Identification of specific genes predicts which patients will respond to Hepatitis C treatment

...hat we hope will encourage 'responder' patients to start and continue treatment for Hepatitis C, despite it's many side effects," said Dr. Jenny Heathcote, a hepatologist at Toronto Western Hospital, University Health Network and Professor of Medicine at University of Toronto, who contributed to the study ...

Why are coyotes getting more aggressive?

... is usually the last stage before coyotes actually start attacking humans -- such as small children that are perceived by the coyotes as a potential food source," says Paul Curtis, associate professor of natural resources at Cornell University. He notes that in the past two decades, several dozen attacks o...

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