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alter in Biological News

Omega fatty acid balance can alter immunity and gene expression

For the past century, changes in the Western diet have altered the consumption of omega-6 fatty acids (w6, found in meat and vegetable oils) compared with omega-3 fatty acids (w3, found in flax and fish oil). Many studies seem to indicate this shift has brought about an increased risk of inflammat...

Interaction between gene variants may alter brain function in schizophrenia

A collaborative study led by investigators from Massachusetts General Hospital (MGH) is giving what may be the first look at how interactions between genes underlie a key symptom of schizophrenia, impaired working memory. Functional imaging studies reveal how a combination of common variants in t...

Turtles alter nesting dates due to temperature change says ISU researcher

AMES, Iowa -- Turtles nesting along the Mississippi River and other areas are altering their nesting dates in response to rising temperatures, says a researcher from Iowa State University. Fred Janzen, a professor in ecology, evolution and organismal biology, has studied turtle nesting habits a...

Social interactions can alter gene expression in the brain, and vice versa

Our DNA determines a lot about who we are and how we play with others, but recent studies of social animals (birds and bees, among others) show that the interaction between genes and behavior is more of a two-way street than most of us realize. This is not a new idea to neuroscience, but one th...

Earthworm activity can alter forests' carbon-carrying capabilities

WEST LAFAYETTE, Ind. - Earthworms can change the chemical nature of the carbon in North American forest litter and soils, potentially affecting the amount of carbon stored in forests, according to Purdue University researchers. The Purdue scientists, along with collaborators from the Smithsonia...

New clinical trial results show how personalized medicine will alter treatment of genetic disorders

WASHINGTON, DC--One of the nations pre-eminent genetic researchers, Eric Hoffman, PhD, of Childrens Research Institute at Childrens National Medical Center, predicts that in relatively short order, medicines next innovation--individualized molecular therapies--will have the unprecedented ability t...

Scientists alter sexual orientation in worms

University of Utah biologists genetically manipulated nematode worms so the animals were attracted to worms of the same sex part of a study that shows sexual orientation is wired in the creatures brains. They look like girls, but act and think like boys, says Jamie White, a postdoctoral rese...

Spaceflight shown to alter ability of bacteria to cause disease

Space flight has been shown to have a profound impact on human physiology as the body adapts to zero gravity environments. Now, a new study led by researchers from the Biodesign Institute at Arizona State University has shown that the tiniest passengers flown in spacemicrobescan be equally affecte...

New study examines how rearing environment can alter navigation

Many animals, including humans, frequently face the task of getting from one place to another. Although many navigational strategies exist, all vertebrate species readily use geometric cues; things such as walls and corners to determine direction within an enclosed space. Moreover, some species su...

A cherry on top: Tart cherries may alter heart/diabetes factors

Tart cherries may be good for more than just making pie, according to new data from an animal study conducted by University of Michigan Health System researchers and presented today at a major scientific meeting. In a study involving rats, the researchers report that animals that received powder...

Fish extinctions alter critical nutrients in water, study shows

Ecosystems are such intricate webs of connections that few studies have been able to explore exactly what happens when a species dies out. Now, a Cornell study using computer simulations has teased out how the disappearance of a freshwater fish can affect the availability of certain nutrients tha...

Global changes alter the timing of plant growth, scientists say

Any gardener knows--different plant species mature at different times. Scientists studying plant communities in natural habitats call this phenomenon "complementarity." It allows many species to co-exist because it reduces overlap in the time period when species compete for limited resources. Now, ...

Research suggests beta agonists may alter the immune system

New research at Wake Forest University School of Medicine suggests that certain inhaled asthma medications ?as well as similar chemicals our bodies produce during times of high stress ?may worsen diseases such as asthma, heart failure and lupus that involve inflammation. The scientific team led b...

Invasive species alter habitat to their benefit

When scientists study habitats that alien species have invaded, they usually find predictable patterns. The diversity of native species declines, and changes occur in natural processes such as nutrient cycling, wildfire frequency and the movement of water through the system. But simply observin...

New technique could alter field of mouse genetics

Howard Hughes Medical Institute researchers have harnessed a mobile gene from the cabbage looper moth and modified it for routine use in mice and other vertebrates. If the new tool works as they expect, it will speed understanding of genes involved in human biology and disease and accelerate the se...

University of Hawaii at Manoa researchers reveal ocean acidification at Station ALOHA

...nit drop by the year 2050 is likely. Continued acidification of the sea may have a host of negative impacts on marine biota, and has the potential to alter the rates of ocean biogeochemical processes. Despite the global environmental importance of ocean acidification, there are few studies of sufficien...

Noise pollution negatively affects woodland bird communities, says CU-Boulder study

...s, a decrease in scrub jays in such areas could result in the decreased establishment of pinyon pine. This would potentially affect many organisms and alter the dynamics of the ecological community, said Francis. The team determined that 97 percent of mourning dove nests and 100 percent of black-headed...

Newly discovered gene fusion may lead to improved prostate cancer diagnosis

... Rubin says. "This expands our understanding of how prostate tumor cells can hijack androgen-regulated genes by using neighboring genes to effectively alter their regulation. This may be a way tumors gain a competitive advantage over normal tissue." Novel Technology Employed to Make Discovery Dr. R...

Stop and smell the flowers -- the scent really can soothe stress

... of lemon, mango, lavender, or other fragrant plants. Scientists in Japan are reporting the first scientific evidence that inhaling certain fragrances alter gene activity and blood chemistry in ways that can reduce stress levels. Their study appears in ACS' Journal of Agricultural and Food Chemistry , a b...

2 Fred Hutchinson Cancer Research Center scientists receive Presidential Early Career Award

.... These clashes can have a long-term impact on organisms, as they sometimes alter the function of essential genes. Malik uses biochemistry and genomics to st...sociated with risk for prostate cancer, and whether such genetic variations alter the association between selenium intake and prostate-cancer risk. Seleniu...

Genetic factors implicated in survival gap for breast, ovarian or prostate cancer

...y Medical Center. "There may be differences in genetic factors by race that alter the metabolism of chemotherapy drugs or that make cancers more resistant or... crucially important public health issue to understand all the factors that alter survival outcomes." ...

US-Mexico border wall could threaten wildlife species

... CORVALLIS, Ore. A 700-mile security wall under construction along the United States' border with Mexico could significantly alter the movement and "connectivity" of wildlife, biologists say, and the animals' potential isolation is a threat to populations of some species. Howev...

Two dietary oils, two sets of benefits for older women with diabetes

...search would measure the effects of only the supplementation. "Making this subtle change in the intake of high-quality dietary fats in an effort to alter body composition is both achievable and affordable to postmenopausal women in the United States who are managing the difficult combination of obesity ...

UT scientist receives hemophilia research award

...ttack the synthetic protein. "Current therapies to treat these antibodies are expensive and often unsuccessful," Smith said. Smith's solution is to alter the chemical signals produced by T cells that trigger the production of the anti-Factor VIII antibodies in people with Hemophilia A, which in turn wou...

Computers aid in cracking deception in plants

...lecular mimicry is a biological mechanism that a pathogen, such as a bacterium, uses to trick a host organism into accepting it and, in some cases, to alter the host's function to its own benefit," said Dmitry Korkin, assistant professor in the University of Missouri Informatics Institute and Department of...

Toxic molecule may help birds 'see' north and south

...ns behave like an axial compass." Changes in the electromagnetic field, such as those experienced by a bird changing direction in flight, appear to alter this biochemical compass in the eye, allowing the bird to see how its direction corresponds to north or south. "Other researchers had found that c...

RSA Designated as the Leader in One-Time Password Market by Frost & Sullivan

...onal information such as static passwords and social security numbers held in organization servers, personal email and accounts to deny, steal, and/or alter proprietary or private information. As the potential financial gain from these thefts continues to increase, the more criminals are focusing on these ...

Researchers observe single protein dimers wavering between two symmetrically opposed structures

...would allow better design of therapeutics that can alter these shapes in order to turn proteins on and off ...ctures, with mutations or conditions being able to alter this balance. They predicted that certain mutation...how such proteins within them are folded, and thus alter their function. Theoretically, it would only ta...

Research explores interactions between nanomaterials, biological systems

...e protein layers change the properties of the nanomaterials and the ways in which they interact in the body can provide valuable information on how to alter the protein coatings to allow for targeted delivery of nanomaterials to specific tissues, such as in cancer treatments. Physicochemical properties...

Troubled waters: Low Apalachicola River flow may hurt gulf fisheries

...ver a large area of the continental shelf. This is significant because scientists have hypothesized that year-to-year changes in the phytoplankton can alter the availability of food for the very young fish larvae, according to research scientist Steven Morey of the Center for Ocean-Atmospheric Prediction S...

An easy way to find a needle in a haystack by removing the haystack

...of improving the search for the "needles", i.e. metabolites such as sugars, fatty acids, amino acids, and other organic acids, the scientists began to alter the matrices with which the samples were applied so that no more interfering matrix-related ions were generated. In other words: they tried to remove ...

Global sunscreen won't save corals

...al temperatures just as volcanic ash from the Mount Pinatubo did following its eruption in 1991. But critics have warned that such a scheme might also alter rainfall patterns, damage the planet's ozone layer, or have other unexpected effects. Until the current study, which used a computer model of the ...

'Shortcuts' of the mind lead to miscalculations of weight and caloric intake, says Penn study

... of the model. In certain instances, researchers would inflate the provided height information of the models as much as 10 inches, though that did not alter participants' estimates of the models' weights. When estimating calories, study participants assumed portion sizes were culturally typical and gues...

Broecker: 'What we need are tougher measures against climate change'

... twenty years. Today's rapid thawing of the Arctic polar cap is a good example. The resulting increase in freshwater inflow to the oceans threatens to alter the main current, the thermohaline circulation, distributing heat across the planet. If this happens, it could cause a drastic upheaval in the global ...

Specific genetic cause of fetal alcohol-related developmental disorders found

... colleagues hypothesized that alcohol exposure in the womb leads to cognitive impairments by inducing epigenetic alterationschanges to DNA that do not alter the actual DNA sequenceof developmental genes like Dio3 in the fetal brain. To investigate this hypothesis, they used rats to model moderate alcohol c...

Scientists examine perceptions of risk and the spread of disease

... Texas and then fanned out farther in the United States, Americans began to alter their behavior. Families kept children home from school, postponed trips to...nt professor at Arizona State University. "When people perceive risks, they alter their behavior, which in turn, alters the risk. It's a feedback loop betwee...

Scientists examine human behavior and the threat of disease

... Texas and then fanned out farther in the United States, Americans began to alter their behavior. Families kept children home from school, postponed trips to...t professor at Arizona State University. "When people perceive risks, they alter their behavior, which in turn, alters the risk. It's a feedback loop betwee...

Who will pick up the bill?

...lusks which all depend on sufficient carbonate levels to form shells successfully. Subsequent losses of prey such as plankton and shellfish would also alter food webs and intensify competition among predators for nourishment. As harvesting levels drop, job losses are likely to follow. The seafood indust...

NASA satellite detects red glow to map global ocean plant health

... the microscopic plants are turning sunlight and nutrients into food through photosynthesis. They can also study how changes in the global environment alter these processes, which are at the center of the ocean food web. Single-celled phytoplankton fuel nearly all ocean ecosystems, serving as the most b...

Study finds children's activity levels not influenced by more PE time in school

... the study's analyst, Alissa Frmeaux, a biostatistician at Peninsula College of Medicine and Dentistry in Plymouth, UK. "If health strategists want to alter the physical activity of children, it is important that they first understand what controls it." The researchers studied 206 children from three pr...
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