Category Biology/Biotechnology

Clover Growth in Mars-like Soils Boosted by Bacterial Symbiosis

Clover growth in Mars-like soils boosted by bacterial symbiosis
Observed growth differences between clover (Melilotus officinalis) inoculated with nodule forming bacteria Sinorhizobium meliloti (left) and a clover plant not inoculated when grown in Martian regolith. Credit: Harris et al., 2021, PLOS ONE, CC-BY 4.0 (creativecommons.org/licenses/by/4.0/)

Benefits of nitrogen-fixing bacteria could aid efforts towards farming soils on Mars. Clover plants grown in Mars-like soils experience significantly more growth when inoculated with symbiotic nitrogen-fixing bacteria than when left uninoculated. Franklin Harris of Colorado State University, U.S., and colleagues present these findings in the open-access journal PLOS ONE on September 29, 2021.

As Earth’s population grows, researchers are studying the possibility of farming Martian soils, or “regoli...

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Back Pain: Psychological Treatment shown to yield Strong, Lasting Pain Relief, Alter Brain Networks

Two thirds of patients found relief; benefits lasted one year. Rethinking what causes pain and how great of a threat it is can provide chronic pain patients with lasting relief and alter brain networks associated with pain processing, according to new University of Colorado Boulder-led research.

The study, published Sept. 29 in JAMA Psychiatry, found that two-thirds of chronic back pain patients who underwent a four-week psychological treatment called Pain Reprocessing Therapy (PRT) were pain-free or nearly pain-free post-treatment. And most maintained relief for one year.

The findings provide some of the strongest evidence yet that a psychological treatment can provide potent and durable relief for chronic pain, which afflicts one in five Americans.

“For a long time we have ...

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Researchers Identify Mutations of Delta, Delta Plus Variants

Findings help explain COVID-19 reinfections, Delta variant infections despite vaccination efforts. Using bioinformatics tools and programming, researchers identified five specific mutations that are far more prevalent in Delta Plus infections compared to Delta infections, including one mutation, K417N, that is present in all Delta Plus infections but not present in nearly any Delta infections. The findings provide important clues to researchers about the structural changes to the virus recently and highlight the need to expand the toolbox in the fight against COVID-19.

When Kamlendra Singh flew back to Missouri from India in April, he developed a cough and fever on the plane, despite being vaccinated for COVID-19 and testing negative for the virus right before departure.

Still, ...

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Antidepressants Inhibit Cancer Growth in Mice

SSRIs and other serotonin blockers cause immune cells to recognize tumor cells again and eliminate them efficiently. (Bild: istock.com/Design Cells)

Classic antidepressants could help improve modern cancer treatments. They slowed the growth of pancreatic and colon cancers in mice, and when combined with immunotherapy, they even stopped the cancer growth long-term. In some cases the tumors disappeared completely, researchers at UZH and USZ have found. Their findings will now be tested in human clinical trials.

Serotonin is a neurotransmitter that is also known as the happiness hormone because of its beneficial effects on mood. In depressed people, the concentration of serotonin in the brain is reduced. The hormone also influences many other functions throughout the body...

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