Mitochondrial genome editing technique yields useful traits

North Carolina State University researchers have successfully transferred an important gene from one compartment of a plant cell to another to produce tobacco plants that lack pollen and viable seeds, while otherwise growing normally. Their findings could lead to better ways of producing hybrid seeds to maximize crop productivity, or…

Newly discovered trigger of Parkinson’s upends common beliefs

A new Northwestern Medicine study challenges a common belief in what triggers Parkinson’s disease. Degeneration of dopaminergic neurons is widely accepted as the first event that leads to Parkinson’s. But the new study suggests that a dysfunction in the neuron’s synapses — the tiny gap across which a neuron can…

New ways to predict outcomes of pregnancies with fetal growth problems

A team of scientists, led by researchers at UCL, have developed new methods to predict outcomes for pregnancies where there are issues with poor growth of the baby inside the womb. The research, published in the Journal of Clinical Investigation, involved 142 women from the EVERREST Prospective Study who had…

Brilliant galaxies of early universe

Rochester Institute of Technology scientists have once again used data from the James Webb Space Telescope (JWST) as part of the Cosmic Evolution Early Release Science (CEERS) Survey to change the way we think about the universe and its distant galaxies. Jeyhan Kartaltepe, associate professor in the School of Physics…

In major breakthrough, researchers close in on potential preeclampsia cure

Researchers from Western and Brown University have made groundbreaking progress towards identifying the root cause and potential therapy for preeclampsia. The pregnancy complication affects up to eight per cent of pregnancies globally and is the leading cause of maternal and fetal mortality due to premature delivery, complications with the placenta…

Making AI smarter with an artificial, multisensory integrated neuron

The feel of a cat’s fur can reveal some information, but seeing the feline provides critical details: is it a housecat or a lion? While the sound of fire crackling may be ambiguous, its scent confirms the burning wood. Our senses synergize to give a comprehensive understanding, particularly when individual…

Scientists take next big step in understanding genetics of schizophrenia

Genetically speaking, we are individuals different from each other because of slight variations in our DNA sequences — so-called genetic variants — some of which have dramatic effects we can see and comprehend, from the color of our eyes to our risk for developing schizophrenia — a debilitating psychiatric condition…

Cars, chlamydia and canines are biggest koala killers

A database tracking hospital admissions and deaths reveals the devastating impact cars, disease and dogs are having on the South East Queensland koala population. Professor Joerg Henning and his colleagues at The University of Queensland School of Veterinary Science have analysed data from the UQ-developed KoalaBASE. “Car strikes, dog attacks…

Live updates: Russia’s war in Ukraine, Kim Jong Un and Vladimir Putin in Russia

US President Joe Biden meets with Ukrainian President Volodymyr Zelensky at the Ukrainian presidential palace in Kyiv, Ukraine, on February 20. Ukrainian Presidential Press Office/Getty Images/File US President Joe Biden plans to meet with Ukrainian President Volodymyr Zelensky next week around the UN General Assembly meetings, according to multiple officials…

Clever lapwings use cover to hide in plain sight

Ground-nesting birds called lapwings use the shape of their nests and surroundings to hide from predators, new research shows. Many ground-nesting species are in decline due to changes in land management and high populations of predators, such as foxes and crows. Conservation projects can fail because too many eggs and…

When it comes to starting a family, timing is everything

A new review of methods to increase chances of successful conception suggests that timed intercourse using urine ovulation tests probably improves live birth and pregnancy rates in women under 40 who had been trying to conceive for less than 12 months, compared to intercourse without ovulation prediction. The review, conducted…

Are US teenagers more likely than others to exaggerate their math abilities?

A major new study has revealed that American teenagers are more likely than any other nationality to brag about their math ability. Research using data from 40,000 15-year-olds from nine English-speaking nations internationally found those in North America were the most likely to exaggerate their mathematical knowledge, while those in…

Polar experiments reveal seasonal cycle in Antarctic sea ice algae

In the frigid waters surrounding Antarctica, an unusual seasonal cycle occurs. During winter, from March to October, the sun barely rises. As seawater freezes it rejects salts, creating pockets of extra-salty brine where microbes live in winter. In summer, the sea ice melts under constant daylight, producing warmer, fresher water…

New evidence indicates patients recall death experiences after cardiac arrest

Up to an hour after their hearts had stopped, some patients revived by cardiopulmonary resuscitation (CPR) had clear memories afterward of experiencing death and had brain patterns while unconscious linked to thought and memory, report investigators in the journal Resuscitation, published by Elsevier. In a study led by researchers at…

Study decodes surprising approach mice take in learning

Neuroscience discoveries ranging from the nature of memory to treatments for disease have depended on reading the minds of mice, so researchers need to truly understand what the rodents’ behavior is telling them during experiments. In a new study that examines learning from reward, MIT researchers deciphered some initially mystifying…

New device rapidly controls postpartum hemorrhage

A study led by Columbia obstetricians has shown that a new intrauterine device can rapidly control postpartum hemorrhage, a major cause of severe maternal morbidity and death, in real-world situations. “Our findings show that the device is an important new tool in managing postpartum bleeding,” says Dena Goffman, MD, professor…

Snaps supersonic outflow of young star

Herbig-Haro (HH) objects are luminous regions surrounding newborn stars, formed when stellar winds or jets of gas spewing from these newborn stars form shock waves colliding with nearby gas and dust at high speeds. This image of HH 211 from NASA’s James Webb Space Telescope reveals an outflow from a…