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Tag: "thought" at biology news

Ice Age extinction claimed highly carnivorous Alaskan wolves

..., north of the ice sheets. Wolves were generally thought to have survived the end-Pleistocene extinction re...p with modern wolves. This was unexpected. “We thought possibly they would be related to Asian wolves instead of American wolves because North America and ...

St. Jude study shows genes play an unexpected role in their own activation

...otein at a site called KIX. Previously, scientists thought that a particular transcription factor uses the same co-factors to activate all its target genes. The new findings showed that phosphate-tagged CREB binding to CBP/p300 at KIX does not account for most gene activation controlled by the cAMP messe...

Adult stem cells from human cord umbilical cord blood successfully engineered to make insulin

... of their lives. Huge numbers of stem cells are thought to be required to create new organs. Researchers m...ic, or marker, known as SSEA-4 that was previously thought to exist only in embryonic cells. They also found that, just as embryonic cells have been shown to d...

Focused ultrasound relieves fibroid symptoms in women

...tocols to have even better results than previously thought possible," Dr. Tempany said. The findings showed significant symptom relief at three months and sustained relief at one year. Women treated with the optimized protocol reported greater symptom relief and quality of life improvement than those trea...

Eavesdropping comes naturally to young song sparrows

...nfants learn language. Sparrows in the wild are thought to learn their songs in two phases. The first phase occurs in their first summer, when they hear and memorize songs sung by adult birds. The following spring, when the young birds are establishing their own territory, they modify and prune their re...

Mice with a migraine show signs of brain damage

...n known as cortical spreading depression, which is thought to underlie many migraines. Even though the bra...oxygen and are in jeopardy. “People have always thought that in order to treat a migraine, you treat the pain. We’re going beyond that. Migraines could be d...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...ough such so-called gene-for-gene interactions are thought to be common in diseases, very few examples of a single gene in a pathogen targeting a single gene in an animal or human host have been identified so far. Photorhabdus is a family of bacteria that in relatively small concentrations can kill insect...

Alien plants attack using 'resource conservation' as weapon, researchers say

...on, we can now take a look at those lists with the thought in mind that we better consider adding species that are really resource efficient," Vitousek said. "And then we can hunt those down." ...

Corals -- More complex than you?

...unexpectedly loaded with genes, many of which were thought to have evolved much later?is also casting new light on evolution. It appears that all animals lose genes during evolution; those with fast generation turnover times ?like fruit flies ?shed genes particularly fast. Corals which take at least 5year...

Simple home spit test to spot deadly pre-eclampsia

...a salt of uric acid, increased levels of which are thought to be due to impaired kidney excretion in pre-ecla...ction kit for use in the home. Pre-eclampsia is thought to be the result of problems relating to the implantation of the placenta. The main diagnostic sympt...

Scientists: As rainfall changes, tropical plants may acclimate

...ropical plants may be more adaptable than commonly thought to changing rainfall patterns expected to accompany a warming climate, new research shows. A University of Florida scientist and other researchers have found that plants in Hawaii have the ability to acclimate to big changes in rainfall in at least ...

Invasion of the island bats

...nction, islands and island archipelagoes have been thought of as biological destinations where species from l...d with fewer species around, island organisms were thought to lose their competitive edge and so they hardly ever re-colonized the continent from which they or...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

... in a biochemical pathway through which lithium is thought to exert its therapeutic effects. The gene produc...tive pathway than does the protein that lithium is thought to target. Scientists can now try to develop more effective medications by focusing on new compound...

Toxoplasmosis infection trick revealed by scientists

...und a quarter to half of the world’s population is thought to be infected, and around 1% of people in the UK catch toxoplasmosis each year. In the majority of cases, those affected don’t have any symptoms. But for those with weakened immune systems, and unborn babies, toxoplasmosis can cause very serious hea...

Researchers publish first marsupial genome sequence

...mping genes," which are also located in areas once thought to be junk DNA. "Transposons have a restless lifestyle, often shuttling themselves from one chromosome to another," said the study's first author Tarjei Mikkelsen, a Broad Institute researcher. "It is now clear that in their travels, they are di...

Female-led infanticide in wild chimpanzees

...to occur in many primate species, but is generally thought of as a male trait. An exception in the realm of chimpanzee behavior was famously noted in the 1970s by Jane Goodall in her observations of Passion and Pom, a mother-daughter duo who cooperated in the killing and cannibalization of at least two infan...

Scientists discover new life in the Antarctic deep sea

...British Antarctic Survey, says, "What was once thought to be a featureless abyss is in fact a dynamic, variable and biologically rich environment. Finding this extraordinary treasure trove of marine life is our first step to understanding the complex relationships between the deep ocean and distribution...

Gene thought to assist chemo may help cancer thrive

A gene thought to be essential in helping chemotherapy kill cancer cells, may actually help them thrive. In a new study of chemo patients, scientists at the Georgia Institute of Technology and the Ovarian Cancer Institute found that 70 percent of subjects whose tum...

DNA analysis suggests under-reported kills of threatened whales

... Baker, who pointed out that individual whales are thought to fetch as much as $100,000. "The obvious question becomes how much of the mortality is caused by incidental bycatch, and how much of it is actually intentional," Baker said. "Beyond that, if more whales are being killed than reported, why aren't...

Rare soft-shell turtle, nesting ground found in Cambodia

...t,?said David Emmett, a CI wildlife biologist. “We thought it might be almost gone, but found it in abundance in this one pristine stretch of the Mekong, making the area the world’s most important site for saving this particular species.? Instead of an exterior shell commonly associated with turtles, the C...

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