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Science News Archive March 2017 - Page 3


Page 3 of 41

Follow-up study suggests group meditation reduced murder rates in large US cities

A recent study found that group meditation using the Transcendental Meditation program significantly reduced urban murder rates in large US cities, with an estimated 4,136 murders averted between 2007-2010. The reductions were consistent with the hypothesis that a sufficiently large group practice creates a positive effect on society.

SourceMaharishi International University·JournalJournal of Health and Environmental Research·DateMar 30, 2017

Brain's role in Tourette tics simulated in new computational model

A new computational model simulates the role of the brain in Tourette syndrome, suggesting that motor tics arise from interactions between multiple brain areas. The model predicts how dysfunctions in neural circuits can lead to an increased number of tics, which could aid in identifying new treatment targets.

SourcePLOS·JournalPLOS Computational Biology·DateMar 30, 2017

Donor-recipient weight and sex mismatch may contribute to kidney transplant failure

A new study reveals that a higher risk of transplant failure is associated with a 28% increase in weight compared to the donor, as well as a 35-50% relative risk for opposite-sex kidney transplants. This highlights the importance of considering donor and recipient matching beyond current immunology-based protocols.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateMar 30, 2017

Immune suppressant ineffective in treating leprosy inflammation

Researchers randomized 345 patients with type 1 reactions to receive either prednisone or prednisone plus azathioprine for varying durations. While all groups showed some improvement in symptoms, azathioprine failed to reduce recurrence rates or improve outcomes for nerve damage compared to standard treatment.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateMar 30, 2017

Brain's 'GPS' does a lot more than just navigate

Researchers at Princeton University found that the brain's hippocampus plays a broader role in memory and learning, involved in both spatial navigation and cognitive tasks. The study used rats to explore sound frequencies and showed similar neural activity patterns as those seen when navigating physical environments.

SourcePrinceton University·JournalNature·DateMar 30, 2017

Researchers watch blood vessels develop in whole Zebrafish embryos

Researchers have successfully visualized the development of blood vessels in zebrafish embryos without labels or contrast agents, enabling better understanding of brain and cardiovascular diseases. The new study uses optical resolution photoacoustic microscopy to provide three-dimensional images with high spatial resolution.

SourceOptica·JournalBiomedical Optics Express·DateMar 30, 2017

Bullies and their victims obsessed with weight-loss

Teenagers involved in bullying have a higher preoccupation with weight loss than their peers, with 42% of bullies and 55% of victims showing extreme obsession. Clinicians should target emotional wellbeing and self-esteem issues when treating victims of bullying.

SourceUniversity of Warwick·JournalInternational Journal of Behavioral Nutrition and Physical Activity·DateMar 29, 2017

Giving brown fat a green light

Researchers at Joslin Diabetes Center identified a lipid molecule that signals brown fat cells to activate in mice, improving metabolism. The molecule, 12,13-diHOME, may also be used as a biomarker for brown fat activation in humans.

SourceJoslin Diabetes Center·JournalNature Medicine·DateMar 29, 2017

Making cows more environmentally friendly

A study by Royal Botanic Gardens Kew suggests that plants growing in warmer conditions are tougher and have lower nutritional value to grazing livestock, potentially inhibiting milk and meat yields and raising the amount of methane released. This vicious cycle threatens to further exacerbate climate change.

SourceRoyal Botanic Gardens Kew·JournalBiogeosciences·DateMar 29, 2017