Add BrightSurf on Google Email

Science News for May 26, 2016


New malaria drugs kill by promoting premature parasite division

Researchers discovered that new malaria drugs promote premature parasite division by increasing sodium ion concentration, altering membrane composition and killing the parasite. The study found that these changes occur without replicating the parasite's genome, indicating a potential new mechanism of action for antimalarial drugs.

SourcePLOS·JournalPLOS Pathogens·DateMay 26, 2016

Cuing environmental responses in fungi

Researchers analyzed genome sequences of fungi to understand their environmental response mechanisms. They found that whole-genome duplication led to the development of specialized genes enabling refined signal perception, which could aid in natural control of metabolic processes and biofuels production.

SourceDOE/Joint Genome Institute·JournalCurrent Biology·DateMay 26, 2016

Investigational drugs show promise for treating overactive bladder

A new investigational drug propiverine hydrochloride has shown promising results in treating overactive bladder, demonstrating better efficacy than an existing medication in reducing voiding frequency and incontinence episodes. Patients reported significant improvement in symptoms after treatment, with response rates increasing over time.

SourceWiley·JournalBJU International·DateMay 26, 2016

Study explores why there is no Labor Party in the United States

A new study by McGill University sociologist Barry Eidlin challenges conventional wisdom on the US lack of a labor party. The research shows that differences in political culture and electoral systems did not affect labor party support as expected before the 1930s. Instead, it was a consequence of different ruling party responses to wo...

SourceAmerican Sociological Association·JournalAmerican Sociological Review·DateMay 26, 2016

Why is there no Labor Party in the United States?

A McGill University sociologist uses historical data to challenge the conventional wisdom that the US lacks a labor or socialist party. The analysis of 142 years of electoral data shows that differences in political culture and electoral systems did not affect labor party support as expected.

SourceMcGill University·JournalAmerican Sociological Review·DateMay 26, 2016

Bright lights, healthy choices

Research published in the Journal of Marketing Research found that diners in well-lit rooms are more likely to order healthier options, such as grilled fish or vegetables, compared to those in dimly lit spaces. The study also revealed that increased alertness leads to better food choices.

SourceCornell Food & Brand Lab·JournalJournal of Marketing Research·DateMay 26, 2016

Weight gain in children associated with low hormone levels

A Mayo Clinic-led study discovered that obese teenagers have lower levels of the hormone spexin, which may play a role in weight gain. The study suggests that spexin could be involved in childhood obesity and potentially used to treat or manage the condition.

SourceMayo Clinic·JournalThe Journal of Clinical Endocrinology & Metabolism·DateMay 26, 2016

The brain needs cleaning to stay healthy

Researchers found that microglia fail to remove dead neurons during epilepsy, leading to accumulation and inflammatory responses. The study's findings provide a new target for therapies aimed at boosting phagocytosis and alleviating brain diseases.

SourcePLOS·JournalPLOS Biology·DateMay 26, 2016

UPMC researchers shine light on common heart complication after lung transplantation

Cardiac arrhythmia is a significant complication following lung transplantation, affecting long-term patient survival. Researchers found that about 30% of patients developed arrhythmia, mostly during the first week post-surgery, with older patients and previous heart surgery being risk factors.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalJournal of Thoracic and Cardiovascular Surgery·DateMay 26, 2016

Powering up the circadian rhythm

Researchers at the Salk Institute found that REV-ERBα acts as a molecular conductor to regulate thousands of genes, with disruptions to its amplitude affecting metabolism and hormone levels. Studying mice with altered REV-ERBα levels revealed a link between circadian rhythms and glucose and lipid metabolism.

SourceSalk Institute·JournalCell·DateMay 26, 2016

Moving beyond race-based drugs

A new approach to health care could involve tailoring treatments to individual genetic makeup, lifestyle and environment. This precision medicine method aims to replace the use of race in treatment decisions and reduce disparities in health outcomes.

SourceDuke University·JournalNew England Journal of Medicine·DateMay 26, 2016

The Lancet Oncology: Teenagers and young adults still fare worse than children for many common cancers, according to Europe-wide study

According to a new study published in The Lancet Oncology, teenagers and young adults have lower chances of surviving certain cancers compared to children. Despite improvements in overall childhood cancer survival rates, adolescents and young adults still tend to die earlier from blood cancers like leukaemias and non-Hodgkin's lymphoma.

SourceThe Lancet·JournalThe Lancet Oncology·DateMay 26, 2016

Beating the limits of the light microscope, one photon at a time

Researchers at Colorado State University have developed a technique to simultaneously image with multiphoton fluorescence and second-harmonic generation, achieving nanoscale resolution. This breakthrough enables the observation of previously inaccessible structures in living tissue, opening up new avenues for biological research.

SourceColorado State University·JournalProceedings of the National Academy of Sciences·DateMay 26, 2016

Astronomers find giant planet around very young star

Researchers at Rice University have discovered a giant planet, CI Tau b, orbiting a young star in the constellation Taurus. The planet, at least eight times larger than Jupiter, orbits its 2 million-year-old star every nine days and is thought to have formed rapidly, with surrounding gas and dust still present.

Mimicking deep sleep brain activity improves memory

The study found that artificially applying synchronous slow wave brain activity during non-REM sleep can enhance memory consolidation, allowing mice to retain memories for up to 4 days. This discovery suggests a potential route to therapy using transcortical magnetic or direct-current stimulation to reactivate sleep-deprived neurons.

SourceRIKEN·JournalScience·DateMay 26, 2016

Alternative odor receptors discovered in mice

Harvard researchers have identified a new mechanism for detecting odors in mammals, using 'necklace' neurons that express MS4A proteins to respond to specific smells like nuts and pheromones. This discovery revises the canonical view of how animals probe their chemical environment.

SourceCell Press·JournalCell·DateMay 26, 2016

Doubling down on Schrödinger's cat

A team of Yale scientists has created a more exotic type of Schrödinger's cat-like state that can exist in two boxes simultaneously, leveraging entanglement to enable error correction and logical operations in quantum computing. This breakthrough builds upon decades of development in circuit quantum electrodynamics.

SourceYale University·JournalScience·DateMay 26, 2016

Potential impact of a dengue vaccine in the Yucatan

A dengue vaccine has the potential to substantially reduce disease burden if it induces long-lasting immunity. Researchers found that a durable vaccine, with booster doses, can reduce annual dengue incidence by up to 80% within five years.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateMay 26, 2016

Spring snow a no-go?

A University of Utah study suggests that spring snowpack in higher elevations will be more dependent on precipitation than temperature in a warming climate. By the end of the century, the threshold elevation for temperature-controlled snowpack is expected to rise by around 800 feet, affecting ski resorts and water resources.

SourceUniversity of Utah·JournalGeophysical Research Letters·DateMay 26, 2016

Why malnutrition is an immune disorder

New evidence suggests that even with a healthy diet, defects in immune system function from birth can contribute to malnourished states throughout life. Researchers propose targeting immune pathways as a potential approach to reducing poor health and mortality caused by under- and overnutrition.

SourceCell Press·JournalTrends in Immunology·DateMay 26, 2016

First discovery in United States of colistin resistance in a human E. coli infection

A transferrable gene for colistin resistance has been discovered in the United States, raising concerns about the emergence of truly pan-drug resistant bacteria. The finding is a significant public health concern, as it may render colistin, the last agent used to combat resistant bacteria, ineffective.

SourceThe U.S. Military HIV Research Program (MHRP)·JournalAntimicrobial Agents and Chemotherapy·DateMay 26, 2016

Finding a new formula for concrete

Researchers at MIT have designed a new bioinspired framework to improve concrete's strength and durability. By studying natural materials such as bones and shells, they have developed guidelines for engineers to design cement with precise control over its internal structure and properties.

SourceMassachusetts Institute of Technology·JournalConstruction and Building Materials·DateMay 26, 2016

Odor alternative

Researchers at Harvard Medical School discover a novel logic for mammalian olfaction that defies the traditional one-to-one correspondence between odors and receptors. The 'olfactory necklace' system uses a different class of chemoreceptors to detect carbon dioxide and other molecules, triggering innate behaviors such as avoidance.

SourceHarvard Medical School·JournalCell·DateMay 26, 2016