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Speaking 2 languages also benefits low-income children

Living in poverty is often accompanied by conditions that can negatively influence cognitive development. Is it possible that being bilingual might counteract these effects? Although previous research has shown that being bilingual enhances executive functioning in middle-class children, less is known about how it affects lower income populations.

Accuracy of narrow band imaging with colonoscopy allows for distal non-cancerous polyps to be left in place

Plants unpack winter coats when days get shorter

EAST LANSING, Mich. — Mechanisms that protect plants from freezing are placed in storage during the summer and wisely unpacked when days get shorter.

In the current issue of the Proceedings of the National Academy of Sciences, Michael Thomashow, University Distinguished Professor of molecular genetics, demonstrates how the CBF (C-repeat binding factor) cold response pathway is inactive during warmer months when days are long, and how it's triggered by waning sunlight to prepare plants for freezing temperatures.

Parents and readers beware of stereotypes in young adult literature

COLUMBIA, Mo. — A newly defined genre of literature, "teen sick-lit," features tear-jerking stories of ill adolescents developing romantic relationships. Although "teen sick-lit" tends to adhere to negative stereotypes of the ill and traditional gender roles, it also explores the taboo realm of sexuality, sickness and youth, says the University of Missouri researcher who named the genre in a recent study.

WSU researcher documents links between nutrients, genes and cancer spread

PULLMAN, Wash.—More than 40 plant-based compounds can turn on genes that slow the spread of cancer, according to a first-of-its-kind study by a Washington State University researcher.

Gary Meadows, WSU professor and associate dean for graduate education and scholarship in the College of Pharmacy, says he is encouraged by his findings because the spread of cancer is most often what makes the disease fatal. Moreover, says Meadows, diet, nutrients and plant-based chemicals appear to be opening many avenues of attack.

Solved: 180-year-old oceanic mystery

WASHINGTON — The origin of Cerataspis monstrosa has been a mystery as deep as the ocean waters it hails from for more than 180 years. For nearly two centuries, researchers have tried to track down the larva that has shown up in the guts of other fish over time but found no adult counterpart. Until now.

The Quarterly Review of Biology: Why some fats are worse than others

All dietary fats are not created equal. Some types of fats have been linked to ailments like heart disease and diabetes, while others, like those often found in plants and fish, have well documented health benefits.

So why do our bodies respond so destructively to some fats but not others?

Darwin discovered to be right: Eastern Pacific barrier is virtually impassable by coral species

A coral species that is found in abundance from Indonesia eastward to Fiji, Samoa, and the Line Islands rarely crosses the Eastern Pacific Barrier toward the coast of the Americas, according to a team of researchers led by Iliana Baums, an assistant professor of biology at Penn State University. Darwin hypothesized in 1880 that most species could not disperse across the marine barrier, and Baums's study is the first comprehensive test of that hypothesis using coral.

Fossil skeleton of strange, ancient digging mammal clears up 30-year evolutionary debate

Shortly after dinosaurs like Tyrannosaurus and Triceratops went extinct 65 million years ago, Earth's ancient landscapes were filled with unusual mammals only distantly related to those alive today. Until recently, one of these creatures, Ernanodon antelios, was only known from a single, highly distorted specimen that raised many questions about its habits and evolutionary relationships.

Behind closed doors: Researchers show how probiotics boost plant immunity

With the help of beneficial bacteria, plants can slam the door when disease pathogens come knocking, University of Delaware researchers have discovered.

A scientific team under the leadership of Harsh Bais, assistant professor of plant and soil sciences in UD's College of Agriculture and Natural Resources, found that when pathogens attempt to invade a plant through the tiny open pores in its leaves, a surprising ally comes to the rescue. Soil bacteria at the plant's roots signal the leaf pores to close, thwarting infection.

The effects of discrimination could last a lifetime

Given the well-documented relationship between low birth weight and the increased risk of health problems throughout one's lifespan, it is vital to reduce any potential contributors to low birth weight. A new study by Valerie Earnshaw and her colleagues from Yale University sheds light on one possible causal factor. Their findings, published online in Springer's journal, the Annals of Behavioral Medicine, suggest that chronic, everyday instances of discrimination against pregnant, urban women of color may play a significant role in contributing to low birth weight babies.

Little evidence supports autism treatment options in adolescents

Vanderbilt University researchers studying interventions for adolescents and young adults with autism are reporting today that there is insufficient evidence to support findings, good or bad, for the therapies currently used.

Although the prevalence of autism is on the rise, much remains to be discovered when it comes to interventions for this population, the researchers concluded.

Compounds activate key cancer enzyme to interfere with tumor formation

Scientists have known for decades that cancer cells use more glucose than healthy cells, feeding the growth of some types of tumors. Now, a team that includes researchers from the National Institutes of Health's new National Center for Advancing Translational Sciences (NCATS) has identified compounds that delay the formation of tumors in mice, by targeting a key enzyme that governs how cancer cells use glucose and its metabolites.

New model of muscular dystrophy provides insight into disease development

Muscular dystrophy is a complicated set of genetic diseases in which genetic mutations affect the various proteins that contribute to a complex that is required for a structural bridge between muscle cells and the extracellular matrix (ECM) that provides the physical and chemical environment required for their development and function. The affects of these genetic mutations in patients vary widely, even when the same gene is affected. In order to develop treatments for this disease, it is important to have an animal model that accurately reflects the course of the disease in humans.

The role of genes in political behavior

Politics and genetics have traditionally been considered non-overlapping fields, but over the past decade it has become clear that genes can influence political behavior, according to a review published online August 27th in Trends in Genetics. This paradigm shift has led to novel insights into why people vary in their political preferences and could have important implications for public policy.