Study Challenges Evolutionary Theory that DNA Mutations are Random

Studying the genome of thale cress, a small flowering weed, led to a new understanding about DNA mutations. (Pádraic Flood)

Findings could lead to advances in plant breeding, human genetics. A simple roadside weed may hold the key to understanding and predicting DNA mutation, according to new research from University of California, Davis, and the Max Planck Institute for Developmental Biology in Germany.

The findings, published January 12 in the journal Nature, radically change our understanding of evolution and could one day help researchers breed better crops or even help humans fight cancer.

Mutations occur when DNA is damaged and left unrepaired, creating a new variation. The scientists wanted to know if mutation was purely random or something deeper...

Read More

Common Household Cleaner can Boost effort to Harvest Fusion Energy on Earth

PPPL physicist Federico Nespoli at the Large Helical Device in Japan. (Photo courtesy of the Japanese National Institute of Fusion Science. Collage by Kiran Sudarsanan.) 

Scientists have found that adding a common household cleaning agent – the mineral boron contained in such cleaners as Borax – can vastly improve the ability of some fusion energy devices to contain the heat required to produce fusion reactions on Earth the way the sun and stars do.

Physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) working with Japanese researchers, made the observation on the Large Helical Device (LHD) in Japan, a twisty magnetic facility that the Japanese call a “heliotron...

Read More

New Treasure Trove of Globular Clusters holds Clues about Galaxy Evolution

Centaurus A is an elliptical galaxy located about 13 million light-years from Earth. This color composite image reveals the lobes and jets emanating from the active galaxy’s central black hole.ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray)

Using observations of Centaurus A, a nearby elliptical galaxy, obtained with the Gaia space telescope and ground-based instruments under the PISCeS survey, a team of astronomers presents an unprecedented number of globular cluster candidates in the outer regions of the galaxy. The findings provide astronomers with an even more detailed picture of galactic architecture and history of collisions and mergers.

A survey completed using a combination of ground and space-based telescopes yielded a ...

Read More

How Triclosan, found in many consumer products, is triggered to Harm the Gut

Credit: Pixabay/CC0 Public Domain

A new study conducted in mice demonstrates precisely how triclosan, an antimicrobial found in many household items, including some toothpastes, toys and thousands of other products, can trigger gut inflammation.

Increasingly, research links triclosan with the gut microbiome and gut inflammation. A new study looks at the potential for combating damage to the intestine. The findings suggest new approaches for improving the diagnosis, prevention and treatment of inflammatory bowel disease.

An international team of researchers led by the University of North Carolina at Chapel Hill, the University of Massachusetts Amherst and Hong Kong Baptist University identified the bacteria, and even specific enzymes, that trigger triclosan’s harmful effects...

Read More