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Life Sciences

Study: Viruses share genes with organisms across the tree of life

A new study finds that viruses share some genes exclusively with organisms that are not their hosts. The study, reported in the journal Frontiers in Microbiology, adds to the evidence that viruses are agents of diversity, researchers say.

Molecular beacon signals low oxygen with ultrasound

Researchers have developed a way to find hypoxia, or low oxygen in tissue, noninvasively in real time with light and ultrasound.

Study: Viruses share genes with organisms across the tree of life

A new study finds that viruses share some genes exclusively with organisms that are not their hosts. The study, reported in the journal Frontiers in Microbiology, adds to the evidence that viruses are agents of diversity, researchers say.

Exercise changes gut microbial composition independent of diet, team reports

Two studies – one in mice and the other in human subjects – offer the first definitive evidence that exercise alone can change the composition of microbes in the gut. The studies were designed to isolate exercise-induced changes from other factors – such as diet or antibiotic use – that might alter the intestinal microbiota.

Drug-delivering nanoparticles seek and destroy elusive cancer stem cells

Researchers are sending tiny drug-laden nanoparticles on a mission to seek and destroy cancer stem cells.

Cancer drug starts clinical trials in human brain-cancer patients

A drug that spurs cancer cells to self-destruct has been cleared for use in a clinical trial of patients with anaplastic astrocytoma, a rare malignant brain tumor, and glioblastoma multiforme, an aggressive late-stage cancer of the brain. This phase Ib trial will determine if the experimental drug PAC-1 can be used safely in combination with a standard brain-cancer chemotherapy drug, temozolomide.

Theory: Flexibility is at the heart of human intelligence

Centuries of study have yielded many theories about how the brain gives rise to human intelligence. A new theory makes the case that the brain’s dynamic properties—how it is wired but also how that wiring shifts in response to changing intellectual demands—are the best predictors of intelligence in the human brain.

Carefully crafted light pulses control neuron activity

Specially tailored, ultrafast pulses of light can trigger neurons to fire and could one day help patients with light-sensitive circadian or mood problems, according to a new study in mice at the University of Illinois.

Five Illinois researchers rank among world’s most influential

Five faculty members have been named to the 2017 Clarivate Analytics Highly Cited Researchers list (previously known as the Thomson Reuters Highly Cited Researchers list). The list recognizes “leading researchers in the sciences and social sciences from around the world."

Genomic study explores evolution of gentle ‘killer bees’ in Puerto Rico

A genomic study of Puerto Rico’s Africanized honey bees – which are more docile than other so-called “killer bees” – reveals that they retain most of the genetic traits of their African honey bee ancestors, but that a few regions of their DNA have become more like those of European honey bees. According to the researchers, these changes likely contributed to the bees’ rapid evolution toward gentleness in Puerto Rico, a change that occurred within 30 years.

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