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Tag: "seems" at biology news

Restaurant seafood prices since 1850s help plot marine harvests through history

..., some of these species became a status symbol. It seems to confirm that many people simply want to eat something that is rare." Some 200,000 restaurant menus have been uncovered by the research team in various archives, primarily in New England. Of these, many are banquet menus showing only the food serv...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

... of new ones. In addition, rapid protein evolution seems to degrade the genes that remain." In the future, major areas of research will include understanding the forces driving this mode of genome evolution, as well as the consequences on the fitness of the bacterium and its host. "Developments in endosym...

Scientists characterize proteome of human cornea

...ers the front of the eye. Although it is clear and seems to lack substance, the cornea is actually a highly organized group of cells and proteins. Its functions include shielding the eye from germs, dust, UV light, and other harmful matter and acting as the eye's outermost lens. Approximately 120 million ...

Researchers find gland that tells fruit flies when to stop growing

...he animals small, and vice versa," Mirth said. "It seems to be a nutrition-related phenomenon. You sort of trick the fruit fly into thinking it is bigger than it really is." Enlarging the prothoracic gland produces much smaller-than-normal adult fruit flies, Riddiford said. "In humans, it would be as if y...

The earliest animals had human-like genes

...es, and the evolutionary line that produced humans seems to be among the slowest. The result, according to a new study by scientists at the European Molecular Biology Laboratory (EMBL), is that our species has retained characteristics of a very ancient ancestor that have been lost in more quickly-evolving ...

Once-dreaded leprosy 'replaced' by tuberculosis, say researchers

...rge had practically disappeared there. The reason seems to be, say researchers at the Hebrew University of Jerusalem and in London, that tuberculosis, a far more deadly disease, overtook leprosy, killing millions throughout Europe. Their conclusion is based upon the examination of DNA from human remains ...

Wright bros. upstaged! Dinos invented biplanes

...the monoplane was introduced, said Chatterjee. "It seems likely that Microraptor invented the biplane 125 million years before the Wright 1903 Flyer." The discovery of Microraptor and other small, exquisitely preserved feathered dinosaurs from China also helps to settle a century-old controversy over whet...

Russian 'surrogate' alcohols are a killer

... in brightly coloured quarter-litre bottles and it seems very difficult to believe that those making them d..., we believe they are being drunk widely. It also seems very likely that these substances are playing an important role in the high level of alcohol-related...

Study reveals genomics of inflammation from severe injury

... blood cells to be less metabolically active. This seems surprising, as one would expect genes required for healing to be turned up and for white blood cells to be more, not less, active. Although other research groups have seen similar genetic results in animals, scientists don't yet have an explanation f...

Study Unlocks Insects?Secret for Love in the Dark

... blood cells to be less metabolically active. This seems surprising, as one would expect genes required for healing to be turned up and for white blood cells to be more, not less, active. Although other research groups have seen similar genetic results in animals, scientists don't yet have an explanation f...

Science's Breakthrough of the Year: Watching evolution in action

... reconstructed has a chilling coda: the deadly flu seems to have started out as purely a bird virus. Understanding the evolution of last century's deadly bird flu may help us predict and cope with the current bird flu threat. Other studies showed how small changes in DNA can trigger dramatic evolutionary ...

Envisat radar surveillance protects endangered prehistoric fish

..."Today, illegal fishing has almost disappeared. It seems that the unscrupulous fishermen have understood the efficiency of the system." Satellites for ship detection Satellite radar sensors detect ships well because their metal surfaces and sharp angles have a high signal return, in contrast to that o...

Genetic analysis of cavefish reveals more about evolution

...gene presenting a big target for mutations, and it seems to have no other functions besides helping to make melanin. Therefore, it doesn't diminish other aspects of fitness when it is mutated. ...

Synthetic Protein Eases Arthritis Symptoms in Mice

...e intrigued by P60 PLAD’s apparent specificity: it seems to block the binding of TNF-alpha to TNFR-1, while allowing TNFR-2 to continue to function. This is important, notes Dr. Lenardo, because it may represent an advantage over some currently used arthritis drugs, which directly block TNF-alpha by bindin...

Limiting the damage in stroke

...al oxygen and nutrients. But the fate of the cells seems to depend on what happens next. Scientists discovered that damaged and dying brain cells are very actively using an internal "communications network" known as the NF-kB signalling pathway. Cells have many such networks; their function is usually to s...

Genetic analysis of Asian elephants in India reveals some surprises

...at case. "It is interesting that the Brahmaputra seems to have been a biogeographical barrier for several species," the authors write in their most recent study. "Population genetic studies of other species would be helpful in corroborating whether the Palghat Gap and the Brahmaputra River have served as...

Discovering the first steps in transcription-coupled repair

...ct interactions between XPG and the RNAPII itself, seems to trigger the cooperation of XPG and CSB. When RNAPII stalled at damaged nucleotides during transcription carried out in vitro, XPG and CSB together formed a large, stable complex with the polymerase. XPG's function during damage removal is to cut ...

Finding the mind's eye

...ng." Masking occurs when "a quickly flashed object seems to vanish because it is flanked by subsequently presented objects," said Tse. Using Functional Magnetic Resonance Imaging (fMRI), Tse said he and his team, "looked for areas of the brain where neuronal activity decreased when the object was made invi...

Engineered Stem Cells Show Promise For Sneaking Drugs Into The Brain

...ty to recover and sprout new fibers. "It actually seems to work better in the terminal (striatum)," Svendsen says. "The bonus is it gets transported back to the substantia niagra." The transplanted cells, according to Behrstock, survived and continued to produce GDNF in laboratory animals for up to three...

Group proves it's possible to grow new lung alveoli by growing new blood vessels

...nt of infants with severe chronic lung disease. It seems possible that by augmenting or restoring vascular growth, overall lung growth and ultimately lung function can be restored." Doing that involved a new gene therapy technique, explains Dr. Thébaud. Knowing that a particular protein, VEGF, a vascular ...

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