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Tag: "rarer" at biology news

Scientists pinpoint inflammation gene

...nd responding to cellular stress. The alternative, rarer variant weakens SEPS1 and puts it at a disadvantag...lar stress." Blangero explained, "Basically, this rarer form of SEPS1 gives you a lazy cellular 'garbage truck' that doesn't properly do its job of clearing...

Same-sex mating by fungi spawned infection outbreak, evidence suggests

...orldwide in association with pigeon droppings, the rarer C. gattii is normally restricted to tropical and s...llected from around the world, the team traced the rarer type to identical isolates in Australia. The major form matched a sample taken from an infected pers...

Seal rookeries could provide a reliable food source for endangered California condors, study finds

...ter the cattle were gone, condors starting getting rarer and hence more valuable as collector's items," Chamberlain says. "So people started shooting them for their feathers and stealing the eggs. That pushed them right to the brink of extinction until they hardly had any food left." By the 1980s, only tw...

Outsmarting the smartie bug

... it does not protect against disease caused by the rarer serotypes," said Brian Spratt, Professor of Microb...s of capsular types or increased prevalence of the rarer serotypes result in any increase in disease by serotypes not included in the vaccine. "We must al...

UCLA scientists strengthen case for life more than 3.8 billion years ago

...containing six protons and six neutrons) to 13C (a rarer isotopic form of carbon, containing six protons and seven neutrons). The light carbon, 12C, is more than 3 percent more abundant than scientists would expect to find if life were not present, and 3 percent is very significant, Harrison said. Carbon...

Wild bees and the flowers they pollinate are disappearing together

...alist pollinators are replacing a larger number of rarer specialist species. Stuart Roberts from the Un... relatively rare in the past have tended to become rarer still, while the commoner species have become even more plentiful. Even in insects, the rich get ric...

Genetic pathways to curable and incurable forms of pancreatic cancer identified

...MCN). This initiates a process that results in the rarer but far less deadly cystic pancreatic cancer. MCN lesions often are large enough to be detected early by MRI or CT scan and also to cause symptoms. The cells in this cancer also react differently to a key signaling protein, TGFb, which can induce ...

Rare cell prevents rampant brain activity

...becoming over-activated. Their results show that a rarer cell type that links collections of pyramid cells ?called a Martinotti cell ?acts as a kind of safety device. When a Martinotti cell receives signals above a certain frequency, it responds by sending back inhibitory signals that moderate surrounding ...

Fish extinctions alter critical nutrients in water, study shows

... mud from the river bottom, Flecker found that the rarer of the two species was unable to make up for the loss of the more common one. Thus, it appears that human overfishing of the common species, coporo ( Prochilodus mariae ), may have large effects on the ecosystem, in part because of its large contribu...

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