News Bureau

Novel biomedical advances that show promise in the lab often fall short in clinical trials. For researchers studying peripheral artery disease, this is made more difficult by a lack of standardized metrics for what recovery looks like. A new study from University of Illinois at Urbana-Champaign researchers identifies major landmarks of PAD recovery, creating signposts for researchers seeking to understand the disease and develop treatments.

CHAMPAIGN, Ill. - A new study finds that most U.S. adults fail to meet recommended daily levels of 10 key nutrients, and those with disabilities have even worse nutrition than average.

A new study reveals that African-Americans have measurable differences in the number and type of bacteria that live in the colon – and those differences are related to their higher-than-average colon cancer risk.

A new study links doing one’s homework, being interested and behaving responsibly in high school to better academic and career success as many as 50 years later. This effect, reported in the Journal of Personality and Social Psychology, holds true even after accounting for parental income, IQ and other factors known to influence achievement, researchers report.

By comparing geographic patterns of nonhuman primate biodiversity and human land-use, researchers discovered that areas managed or controlled by Indigenous peoples tend to have significantly more primate biodiversity than nearby regions. They also found that lorises, tarsiers, monkeys and apes whose territories overlap with Indigenous areas are less likely to be classified as vulnerable, threatened or endangered than those living fully outside Indigenous lands.

Scientists used accelerometers to track daily activity levels for a week in 89 adults with obesity or overweight and, in a series of tests, measured their ability to multitask and maintain their attention despite distractions. The study revealed that individuals who spent more sedentary time in bouts lasting 20 minutes or more were less able to overcome distractions.

Researchers have found evidence linking pregnant women’s exposure to phthalates to altered cognitive outcomes in their infants.

One day soon, doctors may be able to determine how physically active you are simply by imaging your brain. Studies have shown that physically fit people tend to have larger brain volumes and more intact white matter than their less-fit peers. Now a new study reveals that older adults who regularly engage in moderate to vigorous physical activity have more variable brain activity at rest than those who don’t. This variability is associated with better cognitive performance, the researchers say.

CHAMPAIGN, Ill. - Like everything else in the body, the white-matter fibers that allow communication between brain regions also decline with age. In a new study, researchers found a strong association between the structural integrity of these white-matter tracts and an older person's level of daily activity - not just the degree to which he or she engaged in moderate or vigorous exercise, but also whether the person was sedentary the rest of the time.

CHAMPAIGN, lll. - Researchers report that changes in social well-being are closely tied to one's personality, with positive changes in one corresponding to similar changes in the other. Their study reveals potential new mechanisms that can help individuals thrive as they age.

A new study concludes that parental depression contributes to greater brain activity in areas linked to risk taking in adolescent children, likely leading to more risk-taking and rule-breaking behaviors. While previous research has found associations between clinically depressed parents and their teenagers’ risk taking, the new study is the first to find corresponding changes in the adolescents’ brains.

A study of older adults offers insight into how a pigment found in leafy greens that tends to accumulate in brain tissue may contribute to the preservation of “crystallized intelligence,” the ability to use the skills and knowledge one has acquired over a lifetime.

A new study of older adults finds an association between higher blood levels of phosphatidylcholine, a source of the dietary nutrient choline, and the ability to regulate attention to manage competing tasks. The study also identified a brain structure that appears to play a role in this association.

A new study found that blood markers of two saturated fatty acids along with certain omega-6, -7 and -9 fatty acids correlated with better scores on tests of memory and with larger brain structures in the frontal, temporal, parietal and insular cortices.

A new study links higher levels of several key nutrients in the blood with more efficient brain connectivity and performance on cognitive tests in older adults.

The study, reported in the journal NeuroImage, looked at 32 key nutrients in the Mediterranean diet, which previous research has shown is associated with better brain function in aging. It included 116 healthy adults 65-75 years of age.

Neighborhood characteristics are associated with late-stage diagnoses and higher mortality rates among urban African-American women, a new study shows.

Is cellphone use detrimental to mental health? A new study from the University of Illinois finds that high engagement with mobile technology is linked to anxiety and depression in college-age students.

Black adolescents who lived in poverty as children and were pessimistic about their future had accelerated immune cell aging and greater levels of insulin resistance in their mid- to late twenties, according to a study by Allen W. Barton, a professor of human development and family studies.

A study of foxes offers new insights into the brain changes that occur in wild canids as they become more tame, researchers report. The study links fox domestication to changes in gene activity in the pituitary gland, a brain center that kicks out hormones to regulate various bodily functions, including the stress response.

Take a fish out of water and its stress hormones will go up. Adrenaline and noradrenaline, the “fight or flight” hormones, peak first, followed more gradually by cortisol. A new study finds that largemouth bass whose cortisol levels rise most after a brief bout of stress are inherently harder to catch by angling.

Scientists have finalized a five-year study of newborn and fetal dolphins found stranded on beaches in the northern Gulf of Mexico between 2010 and 2013. Their study, reported in the journal Diseases of Aquatic Organisms, identified substantial differences between fetal and newborn dolphins found stranded inside and outside the areas affected by the 2010 Deepwater Horizon oil spill.

Adolescent girls who engage in more moderate and vigorous physical activity each day have better attentional control, a new study finds. The study focused on girls and boys aged 15-18.

CHAMPAIGN, Ill. — Researchers investigated the relationship between historical traumatic events experienced by Alaska Native communities and epigenetic markers on genes that previous studies have linked to trauma. The new study found a similar pattern among Alaska Native participants, with specific epigenetic differences observed in those who reported experiencing the most intense symptoms of distress when reflecting on historic losses. 

The study also found that individuals who strongly identified with their Alaska Native heritage and participated in cultural activities generally reported better well-being. The new findings are detailed in the International Journal of Health Equity.

A new study reveals that 9- and 10-year-old children who are aerobically fit tend to have significantly thinner gray matter than their “lower-fit” peers. Thinning of the outermost layer of brain cells in the cerebrum is associated with better mathematics performance, researchers report in the journal PLOS ONE.

Healthy college students who have a relatively small inferior frontal cortex – a brain region behind the temples that helps regulate thoughts and emotions – are more likely than others to suffer from anxiety, a new study finds. They also tend to view neutral or even positive events in a negative light, researchers report.

The same phosphorous that fertilizes the thriving agriculture of the Midwest is also responsible for a vast “dead zone” in the Gulf of Mexico near the Mississippi Delta. Efforts to reduce the amount of phosphorus that enters the Mississippi River system are underway, but research led by the University of Illinois Urbana-Champaign suggests that remnants of the contaminant are left behind in riverbeds for years after introduction and pose an overlooked – and lingering – problem.  

During development, children must learn both broad facts about the world (that dogs have four legs, for example) and information that is more specific (that the family dog is scared of snow). While research in developmental psychology suggests that young children should have an easier time learning specific, concrete facts, a new study reveals that they learn general facts so effortlessly that they often can’t tell that they learned anything new at all.

Wind and solar farms are known to have local effects on heat, humidity and other factors that may be beneficial – or detrimental – to the regions in which they are situated. A new climate-modeling study finds that a massive wind and solar installation in the Sahara Desert and neighboring Sahel would increase local temperature, precipitation and vegetation. Overall, the researchers report, the effects would likely benefit the region.

Small sample sizes in studies using functional MRI to investigate brain connectivity and function are common in neuroscience, despite years of warnings that such studies likely lack sufficient statistical power. A new analysis reveals that task-based fMRI experiments involving typical sample sizes of about 30 participants are only modestly replicable. This means that independent efforts to repeat the experiments are as likely to challenge as to confirm the original results.

A geologist, a microscopist and a doctor walk into a lab and, with their colleagues from across the nation, make a discovery that overturns centuries of thought about the nature and composition of kidney stones. The team’s key insight, reported in the journal Scientific Reports, is that kidney stones are built up in calcium-rich layers that resemble other mineralizations in nature, such as those forming coral reefs or arising in hot springs, Roman aqueducts or subsurface oil fields.

A new study of trial court judges suggests these arbiters of the law sometimes let their personal ideas about gender roles influence their decision-making.

Laboratory rats will drink alcohol if it’s available, and may even get a little tipsy, researchers report in a new study. But they won’t voluntarily drink until they’re drunk. And while ethanol is calorie-rich, rats that drink it eat less food and their total energy intake remains steady, the research team found.

Exposure to the phytoestrogen genistein prior to conception may adversely affect female fertility and pregnancy outcomes, depending on the dosage and duration of exposure, a new study in mice by scientists at the University of Illinois suggests.

University of Illinois researchers found in a new study of mice that consuming the chemical compounds found in thermally abused cooking oil may trigger changes that promote the progression of late-stage breast cancer.

An individualized diet plan developed by nutritionists at the U. of I. shows promise at helping users lose weight and keep it off. The program uses a visual tool that encourages dieters to select foods high in protein and fiber.

Scientists once thought that female mate choice alone accounted for the eye-catching color patterns seen in some male fish. But for orangethroat darters, male-to-male competition is the real force behind the flash, a new study finds.

CHAMPAIGN, lll. - Up to 4 percent of the methane on Earth comes from the ocean's oxygen-rich waters, but scientists have been unable to identify the source of this potent greenhouse gas. Now researchers report that they have found the culprit: a bit of "weird chemistry" practiced by the most abundant microbes on the planet.

In a randomized control study of 10 healthy young men, researchers compared how consuming the single amino acid leucine or its two-molecule equivalent, dileucine, influenced muscle-building and breakdown. They found that dileucine boosts the metabolic processes that drive muscle growth 42% more than free leucine does.

Scientists have identified a molecule that regulates the fate of cells, switching off their ability to differentiate into distinct cell types.

The heart is a dynamic muscle that grows and shrinks in response to stressors such as exercise and disease. The secret to its malleability lies in individual cells, which get bigger or smaller depending on the heart’s needs. A new study of mouse hearts reveals a previously unknown mechanism by which heart cells control their size by ramping up or stopping the production of a key factor called PABPC1. The findings, reported in the journal eLife, could assist in the development of therapeutics that promote healthy heart growth and prevent disease.

A closer look at how honey bee colonies determine which larvae will serve as workers and which will become queens reveals that a plant chemical, p-coumaric acid, plays a key role in the bees’ developmental fate.

It may seem off-putting to some, but human waste is full of nutrients that can be recycled into valuable products that could promote agricultural sustainability and better economic independence for some developing countries.

New research focuses on a fundamental human habit: When trying to explain something (why people give roses for Valentine’s Day, for example), we often focus on the traits of the thing itself (roses are pretty) and not its context (advertisers promote roses). In a new study, researchers found that people who tend to focus on “inherent traits” and ignore context also are more likely to assume that the patterns they see around them are good.

Head and neck cancer patients who eat a healthy diet prior to treatment may be less likely to have nutrition impact symptoms up to a year after diagnosis, according to a recent study led by U. of I. researchers.

Using head shape and genetic analyses, new research challenges the formerly designated subspecies within the western rattlesnake species. These findings have important implications for ecological conservation efforts across the United States and could provide the basis for new species designations.

CHAMPAIGN, lll. - A review of more than 160 studies of human and animal subjects has found "clear and compelling evidence" that - all else being equal - happy people tend to live longer and experience better health than their unhappy peers.

Westerners view handshaking more positively than do East Asians, researchers report in a new study. Western men also rate handshakes initiated by men and women differently, the study found. 

Gut hormones play an important role in regulating fat production in the body. One key hormone, released a few hours after eating, turns off fat production by regulating gene expression in the liver, but this regulation is abnormal in obesity, researchers at the University of Illinois Urbana-Champaign found in a new study.

Despite government regulations, ground-level ozone – an odorless gas that forms as polluting nitrogen oxides drift in sunlight across the countryside – continues to threaten crop quality and yield. In a new study, researchers quantify this loss from historical yield data for the first time. They show that over the last 30 years, ozone emissions have reduced soybean and corn yields by 5 percent and 10 percent, respectively.

CHAMPAIGN, Ill. — Explaining the evolution of insect society, with sterile society members displaying extreme levels of altruism, has long been a major scientific challenge, dating back to Charles Darwin’s day. A new genomic study of 10 species of bees representing a spectrum of social living – from solitary bees to those in complex, highly social colonies – offers new insights into the genetic changes that accompany the evolution of bee societies.