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Tag: "their" at biology news

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...colleagues discovered that as the rodents aged and their hair beganturning gray, the numbers of stem cells ...ing this gene. In adramatic fashion, the mice lost their melanocyte stem cells shortlyafter birth and quickly went gray. It may be that people who graypremat...

Experiments provide proof of how traveling in groups protects insects

...ckets and young locusts also sometimes unite with their own kind and form teeming, hungry islands of life that devour everything in their path that's edible. Some spectacular marching packs stretch several miles wide and extend 10 miles o...

Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease

...ric Lander, and others at the Broad Institute; and their colleagues from Affymetrix, a California technology company. The analysis shows a striking and surprising exception in the way some critical genes are activated by the protein packaging. These proteins act like spools for the long strings of DNA tha...

New research questions basic tenet of neuron function

...urons. It is known that synaptic vesicles release their neurotransmitters in two different "modes" ?one wh...f neurotransmitter release will aid researchers in their investigations of psychiatric disorders and neurological disorders such as mental retardation, autis...

Experiments provide proof of how traveling in groups protects insects

...ckets and young locusts also sometimes unite with their own kind and form teeming, hungry islands of life that devour everything in their path that's edible. Some spectacular marching packs stretch several miles wide and extend 10 miles o...

New Study from Affymetrix Laboratories Points to Changing View of How Genome Works

...nscripts from one strand of DNA can share parts of their sequence with overlapping transcripts from the same strand or even from the opposite strand (antisense). Transcripts missing a run of adenosine nucleotides (non-polyA) at the tail-end were twice as common as the more well-studied RNAs that have this ...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...all this without affecting primary tumor cells, or their blood supply," Dr. Huang said. "To our knowledge, that's a real first." Exact mechanisms remain unclear. "Obviously, these compounds are targeting some step in the cell-migration process," Dr. Huang said. The activity of a migration-linked protein ...

Discovery of key protein's shape could lead to improved bacterial pneumonia vaccine

...Knowingthe shape of CbpA will guide researchers in their efforts to use partor all of this protein as the b... types of polarizedlight by molecules to determine their shape. It also can show how thatshape can change when the protein interacts with another molecule.“T...

Critical role in programmed cell death identified

...s that set the cell death program in motion. While their activity in mammalian cell death was known, mitoch... families of proteins for these factors; moreover, their cell death is more sporadic and harder to pinpoint. In worms, scientists know exactly which cells a...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...searchers tested what happened when people cleaned their hands for only 10 seconds, Sickbert-Bennett said. ...h-care personnel washing or otherwise disinfecting their hands at work. "Previous studies have had people clean their hands for 30 seconds or so, but that’s...

New comparative toxicogenomics database

...Knowingthe shape of CbpA will guide researchers in their efforts to use partor all of this protein as the b... types of polarizedlight by molecules to determine their shape. It also can show how thatshape can change when the protein interacts with another molecule.“T...

Taking Aim With Nanoparticle PEBBLEs

...s. The spheres carry an assortment of molecules on their surfaces, some to guide the PEBBLEs to their targets inside the body, some to enhance their visibility on MRI images, and others to deliver a dea...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...te pet animal, are attractive to owners because of their vibrant colors. But those colors may mean more to ... parrots use an unusual set of pigments to produce their rainbow of plumage colors, but their biochemical identity has remained elusive. Now, an Arizona Stat...

Elephants imitate truck noises, other animals

...ts learn to imitate sounds that are not typical of their species, the first known example after humans of v...d. "Our study suggests that elephants may be using their vocal learning abilities in a similar manner, and opens a fascinating new area for research on how e...

Genetically modified natural killer immune cells attack, kill leukemia cells

...tically modified the K562 cells so they carried on their surfaces many copies of two different proteins, 4-...of the NK cell population to more than10,000 times their original number. The technique triggered growth of NK cells specifically, which greatly simplified t...

UCSD researchers maintain stem cells without contaminated animal feeder layers

... would provoke an immune system attack eliminating their therapeutic value. While several laboratories hav...hout the problem of contaminating animal cells and their products." In a summary to their paper, the researchers noted that "the identification of activin A...

Transport System Smuggles Medicines Into Brain

...te pet animal, are attractive to owners because of their vibrant colors. But those colors may mean more to ... parrots use an unusual set of pigments to produce their rainbow of plumage colors, but their biochemical identity has remained elusive. Now, an Arizona Stat...

Scientists develop new color-coded test for protein folding

... other disease-related proteins. Acid and base In their experiment, Zare, postdoctoral fellow Soonwoo Chah...that some cytochrome c molecules had refolded into their original three-dimensional shape. In fact, the experiment showed that, when attached to gold film, c...

Probing The Promise And Perils Of Nanoparticles

...sorts of materials, you need to be concerned about their impact," said Mark Banaszak Holl, a U-M professor ...e with them, but at the same time, understand what their potential downsides might be." Banaszak Holl and graduate students Pascale Leroueil and Seungpyo Hon...

Open microfluidic and nanofluidic systems

... of the surface channels is carefully matched with their wettability (PNAS 102, 1848-1852 (2005). Many research groups around the world work towards the construction of "labs-on-a-chip" in order to integrate chemical and biochemical analyzers on the micrometer or even nanometer scale. These devices will s...

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