Tag: "implies" at biology news

Migration alert -- How tumor cells home in on the lymphatic system

...avenues for combating metastasis, says Swartz. “It implies that if a lymphatic was blocked, tumor cells would be less attracted to it. This means that tumor cells “know” which lymphatic vessels will be more effective routes for dissemination,” she explains. “Therapeutically, it indicates that a drug target ...

Ice Age extinction claimed highly carnivorous Alaskan wolves

...as quite a surprise,” Leonard said. The result implies that the Alaskan wolves died out completely, leaving no modern descendents. After the extinction, the Alaskan habitat was probably recolonized by wolves that survived south of the ice sheet in the continental United States, Leonard said. The ancie...

Corals -- More complex than you?

...y of the coral and human innate immune repertoires implies that they may function in similar ways, so the hope is that we can apply what we know about human health to better understand coral disease. There may also be a direct payback, in the sense that, by exploring the ancestral immune genetic repertoir...

Loss of a universal tRNA feature reported

... histidine-carrying tRNAs." He added: "This result implies that tRNA recognition by the enzyme adding histidine to tRNA differs considerably from similar enzymes in other organisms. We have indeed been able to detect an impact on particular regions of the histidyl-tRNA synthetase that are critical for recogn...

Prenatal cocaine's lasting cellular effects

...is effect appears permanent," said Stanwood. This implies that cocaine exposure during a brief, sensitive period of neural development can lead to long-lasting effects at the cellular level. This change also altered the growth of neuronal processes, suggesting that the altered D1 receptor trafficking ma...

Antarctic warming to reduce animals at base of ecosystem, shift some penguin populations southward

... krill's abundance and availability. "The data implies that there may be less food there as the temperatures rise," he said. He manages the LTER site in the Dry Valleys near McMurdo Station, the largest of the three American bases in Antarctica . "It you look at the last 100 years or so, things have ...

Scientists discover a new risk factor for Alzheimer's

...er's in six of them," St George-Hyslop said. "That implies that SORL1 is not the only cause of Alzheimer's, b...the disease displayed another SNP signature. "This implies that there are at least two, and possibly more, gene variants at work here," said St George-Hyslop. ...

CSHL research ties harmless viruses to cancer

...ct human cells have species that fuse cells, which implies that CIN and cancer might be caused by viruses, even those that are considered harmless. ...

The great escape -- fleeing fish fall in line

...atively fixed chronological order of escape. This implies that in a given school certain individuals may have a greater influence on the escape strategies of the whole school.? Researchers are keen to explore whether the tendency to keep a fixed chronological order of escape corresponds to a leadership ma...

Early-stage immune system control of HIV may depend on inherited factors

... of an individual's genetic HLA Class I background implies that a successful vaccine would have to overcome genetic factors associated with a less protective response," he adds. Altfeld is an associate professor of Medicine at Harvard Medical School. He and his colleagues are working on a follow-up study wi...

Mysterious 'neural noise' actually primes brain for peak performance

...suddenly said, 'Oh, it's not noise,' because noise implies something's wrong," says Pouget. "We started to realize then that what looked like noise may actually be the brain's way of running at optimal performance." Bayesian computing can be done most efficiently when data is formatted in what's called "Po...

Two studies on bee evolution reveal surprises

...e bees stemmed from the family Colletidae, which implies that bees originated in the Southern Hemisphere (either South America or Australia). However, the work of Danforth and his group suggests that the earliest branches of the bee's evolutionary tree originate from the family Melittidae. That would mea...

Unraveling where chimp and human brains diverge

...correspond to functional changes in the genome, it implies that these differences are very meaningful," said Oldham. "This finding supports the theory that variations in the DNA sequence contributed to human evolution." Relying on a new analytical approach developed by corresponding author Steve Horvath,...

Brain regions do not communicate efficiently in adults with autism

... coordinated neural activity," said Murias, "which implies poor internal communication between the parts of the brain." The UW researchers analyzed EEGs from 36 adults, ranging in age from 19 to 38. Half the adults had autism and all had IQs of at least 80. The EEGs, which measure the activity of hund...

UCLA researchers unravel a mystery about DNA

...istry, Rutgers University. The scrunching model implies that the scrunched DNA is expelled from the enzyme channel at predictable sites that are available for interaction with transcription regulatory proteins. Beyond resolving the mechanism for initiation, the significance of this work is in pointing out...

Newly discovered behavior in cancer cells signals dangerous metastasis

...e cancer cells were observed. Their heavy presence implies that the stroma may have induced the cancer cells to revert to epithelial when they reached a new destination, so they could stabilize to populate a new tumor site. "Our findings validate that tumors are highly complex in their behavior and don't ne...

Extraordinary life found around deep-sea gas seeps

... but the distance to previously studied cold seeps implies that there are several species new to science among these new collections,' says Dr Rowden. The team has also collected samples of the sediment and water surrounding the seeps for chemical analysis and used sonar to study the geological structures...

Weizmann Institute scientists discover a molecular security mechanism for keeping mutations in check

...he existence of this variety of specialist enzymes implies precise regulation of the system ?otherwise copying by the careless enzymes might get out of control and lead to an unhealthy proliferation of mutations. Prof. Livneh and his team recently discovered a security mechanism that prevents such prolifer...

Study provides first look at the 'birth' of a retina cell

...he identity of a cone. "This finding in particular implies the existence of pools of progenitor cells with competence to become either a rod or a cone," explains Swaroop. "We suggest that during early stages of development, these cells are not completely committed to a specific fate; there is an opportunity ...

Microbes transform 'safest' PBDEs into more harmful compounds

...ohen, Ph.D., the study’s corresponding author. "It implies that current and planned bans of the most toxic forms of PBDEs may be ineffectual if the less toxic forms are rendered more toxic when released into the environment." In laboratory animals, high blood levels of PBDE are associated with cancer, lower...

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