When mice that are genetically susceptible to developing inflammatory bowel disease (IBD) were given antibiotics during late pregnancy and the early nursing period, their offspring were more likely to develop an inflammatory condition of the colon that resembles human IBD, report scientists.
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Eye microbiome trains immune cells to fend off pathogens in mice
Bugs in your eyes may be a good thing. Resident microbes living on the eye are essential for immune responses that protect the eye from infection, new research shows. The study demonstrates the existence of a resident ocular microbiome that trains the developing immune system to fend off pathogens.
Eye-dwelling bacteria help mice fight off invading pathogens
The surface of the eye is one of the most inhospitable environments for microbes in mammals because tears are loaded with anti-microbials. However, some microbes can live on this sparsely populated tissue and may play a key role in preventing eye infection.
Academic motivation suffers when economic mobility seems out of reach
High school and college students from low socioeconomic status (SES) backgrounds are much less motivated to overcome academic hardships when they have doubts about the likelihood of people from their backgrounds achieving upward mobility, suggests a new report.
Most comprehensive database on past global changes is online
Climate scientists will now be able to more accurately study the pattern and causes of global surface temperature changes than was previously possible, thanks to a large international team of scientists contributing to PAGES (Past Global Changes).
Erratic time perception in schizophrenia
A meta-analysis investigates time perception and temporal information processing in patients with schizophrenia on the basis of 68 studies from the past 65 years.
Warm winter events in Arctic becoming more frequent, lasting longer
Arctic winter warming events -- winter days where temperatures peak above 14 degrees Fahrenheit (minus 10 degrees Celsius) -- are a normal part of the climate over the ice-covered Arctic Ocean. But new research by an international team that includes NASA scientists finds these events are becoming more frequent and lasting longer than they did three decades ago.
Marine vessels are unsuspecting hosts of invasive species
Ships play an unknowing but dominant role in introducing and dispersing tough-shelled non-indigenous organisms into new environments, suggest researchers.
Better than Star Wars: Chemistry discovery yields 3-D table-top objects crafted from light
A scientist's childhood dream of 3-D projections like those he saw in a Star Wars movie has led to development of new technology for making animated 3-D table-top objects by structuring light. The technology uses photoswitch molecules to make an infinite number of volumetric 3-D light structures viewable from 360 degrees, which will be useful for biomedical imaging, education, engineering, TV, movies, video games and more.
Spiky ferrofluid thrusters can move satellites
Once launched into low-Earth orbit, a small satellite needs propulsion. Electrospray uses spiky, needle-like jets of fluid to push spacecraft, explains a new report.