Tag: "little" at biology news
Identifying tick genes could halt disease, bioterrorism threat
...response from getting rid of them." Currently very little
is known about the tick genome, which is about two-thirds the size of the human genome, Hill said. Many animals and plants have similar genes with similar functions, but ticks have some unique genes different even from other invertebrates. With a bet...
The birth of a beak
... diversity is explained by evolutionary selection, little
is known about how different beak shapes are built... beak development has been studied to some degree, little
is known about how these shapes are created in the later stages of development. To shed some light o...
Battle between bubbles might have started evolution
... exerts an osmotic pressure on the inside of these little
membrane vesicles, this internal pressure puts a tension on the membrane, which tries to expand. We proposed that it could do so through the spontaneous transfer of material from other vesicles nearby that have less internal pressure because they hav...
Select research highlights from current AACR journals
...defects in muscle disease have been characterized, little
is known about such changes in carcinoma cells. Singh et al. identified multiple post-translational modifications that modulate dystroglycan function in these aberrant cells. Novel defects in carcinoma cells arising in this important cell adhesion mo...
Researchers identify the genome's controlling elements
...y time soon. However, because a genome sequence is little
more than a static list of chemicals--like, say, a parts list for a 747 airplane--scientists are increasingly turning their attention to figuring out how living organisms put their genes to work. Using yeast as a testing ground, researchers at Whiteh...
Molecular motor myosin VI moves 'hand over hand,' researchers say
...nerve cells so they can repeatedly fire. How these little
proteins perform their duties is becoming clearer ... dye was," Selvin said. "Then we fed the myosin a little
food called adenosine triphosphate, and it took a step. We took another picture, located the dye, a...
Other highlights in the September 1 JNCI
...tes, and cardiovascular disease. However, there is little
consensus among researchers about how to determine what interventions and changes would work the best. In a commentary on a 2003 workshop, Ross L. Prentice, Ph.D., of the Fred Hutchinson Cancer Research Center in Seattle, and colleagues outline resea...
Humans march to a faster genetic 'drummer' than primates, UC Riverside research says
...lu DNA repeats, sometimes called "junk DNA." These little
understood sections of DNA are volatile, and prone to sudden mutations, or genomic rearrangements. At times the results are beneficial in that they give rise to new proteins or an altered gene regulation. Sometimes the mutations result in the growth ...
Probing the surface of white blood cells to enhance immune system medicine
... microvilli on the lymphocytes, despite expressing little
to no Wiskott-Aldrich syndrome protein (WASP) -- the protein whose deficiency leads to the syndrome. This challenges the long-held view that an absence of WASP led to the inability to form microvilli on lymphocytes. The study represents the firs...
One-hundred-fifty year old lessons of John Snow still relevant today
...died in 1858 at the age of 45 partly because very little
is known of his early days. However, said Vinten-Johansen, the book does give a good feel for the times. "We were able to find the diary of someone who was apprenticed around the same time just down the street from where Snow practiced," he said. "We...
Study in Science reveals recreational fishing takes big bite of ocean catch
...uccessive catches. "Because they tend to move very little
outside of the spawning season, an individual is e... "Everyone has to be part of the solution. There's little
use in commercial and recreational fishers pointing fingers at each other," says author and ardent r...
Streptococcus infects humans by thwarting blood clotting
...thogen's ability to infect humans while exhibiting little
activity against other mammals. The scientists gen...gene from group A streptococci bacteria, there was little
difference in their infectivity between normal and the transgenic mice. Such studies have led Ginsbu...
Unicellular organisms contribute more nitrogen to ocean that reported earlier
...nd south to about 40 degrees latitude about which little
or nothing is known in regard to unicellular nitrogen-fixing organisms, Montoya noted. "We are still at a very early stage in understanding ocean science and how things work in these enormous pieces of the ocean," he added. But the researchers antic...
Tiny molecules have big potential as cancer drugs, Stanford researcher believes
...roteases take other proteins and degrade them into little
bits, and so it's hard to figure out what those proteins were doing," he said. "We're beginning by focusing on individual proteases, seeing what happens when you shut down a specific member of that family. And I think we're going to find that some of...
Women who have donated eggs sought for national study
... help themselves or other women bear children. But little
is known about what motivated these women to becom... studies who is working with Kenney, said that the little
research that has looked at women's motivations to donate eggs has been conducted in Great Britain, ...
OneWorld Health compiles comprehensive state of infectious diarrhea treatments, potential solutions
...pies today target the adult travelers' market with little
consideration for pediatric use. Some vaccines focus on one pathogen, such as rotavirus, although there are multiple causative pathogens. Efforts are also underway to prevent exposure to the pathogens responsible for diarrhea in developing countries...
UCSD biologists develop 'super-endurance' strain of mice
...y anaerobically, because these super mice had very little
lactic acid in their blood. The elevated activity of mitochondrial enzymes in the muscles of these mice also demonstrated that their ability to run and swim for long periods came from their greater dependence on aerobic metabolism, which produces hig...
Millennia still mean early days for newly identified sex chromosome
fish called the threespine stickleback may help scientists understand how sex chromosomes evolve. Researchers have found that threespine sticklebacks have a Y chromosome that is less than ten-million years old, which is quite young in evolutionary ti...
Carnegie Mellon scientists reveal ways of studying, resolving PCB contamination in US rivers
...fy sediment nutrients from contaminated sites with little
or no bacterial activity also could reveal ways to coax poor PCB-eaters into developing healthy appetites for these toxins. Ultimately, PCB-digesting microbes will need to be examined in each contaminated lake or river to understand the fate of PCBs ...
2nd media alert First Scientific Conference on Childhood Leukaemia
...ith childhood leukaemia that have to date received little
or no attention, These include diet in early childhood, light pollution, melatonin and circadian rhythms, placental transfer to the foetus of damaging agents, delayed transgenerational susceptibility through the germline, the presence of pre-leukaemi...
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