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Science News for June 12, 2020


Protecting scientific diversity

The COVID-19 pandemic poses major challenges to scientists from underrepresented groups, including women and minority communities. The international appeal emphasizes the importance of promoting diversity, equity and inclusion in science to overcome these challenges. The authors recommend improved gender equality measures, targeted fun...

SourceUniversity of Göttingen·JournalNature Ecology & Evolution·DateJun 12, 2020

Self-swabbing tests for COVID-19 accurate and safe, Stanford study reports

A Stanford University School of Medicine study found that self-collected nasal swab samples yielded results as accurate as those collected by healthcare workers, paving the way for widespread at-home testing. The study also explored how long infected individuals remain contagious and provided insights into viral shedding patterns.

SourceStanford Medicine·JournalJournal of the American Medical Association·DateJun 12, 2020

Bird feeding helps females more than males

A study found that female great tits can reduce their body temperature at night when fed supplemental food during winter, increasing survival chances. In contrast, male great tits do not exhibit a similar response, suggesting males prioritize access to food.

SourceLund University·JournalBiology Letters·DateJun 12, 2020

Heart attack in a dish: a 3D model

Researchers have developed a 3D model of the human heart to study heart attacks and drug toxicity. The model uses induced pluripotent stem cells to recreate the physiological conditions that occur during a heart attack, providing insights into how cells respond in the short term and long-term damage.

SourceMedical University of South Carolina·JournalNature Biomedical Engineering·DateJun 12, 2020

Changes in frequency of sex among US adults

A survey study found that US adults aged 18-44 experienced a decline in the frequency of sexual activity and an increase in the number of sexual partners. The study suggests factors associated with these changes include demographic characteristics, relationship status, and socio-economic status.

SourceJAMA Network·JournalJAMA Network Open·DateJun 12, 2020

Parasites and the microbiome

Researchers found that parasite infection was strongly associated with the overall composition of the microbiome, which could accurately predict a person's country and lifestyle. The study also discovered that the presence of four soil-transmitted gut parasites tended to co-occur at a higher rate than chance.

SourceUniversity of Pennsylvania·JournalGenome Biology·DateJun 12, 2020

Hibernation in mice: Are humans next?

Researchers at the University of Tsukuba and RIKEN in Japan have identified specific cells in the mouse brain that can trigger a hibernation-like state when activated. This discovery has significant implications for potential human hibernation applications, including medical uses such as emergency transport or critical care situations.

SourceUniversity of Tsukuba·JournalNature·DateJun 12, 2020

University of Michigan researchers identify new approach to turning on the heat in energy-burning fat cells

Researchers at the University of Michigan have discovered a new signaling pathway that can regulate beige fat thermogenesis independently of adrenergic signaling. This discovery opens a new direction for approaching metabolic disorders and could potentially provide a treatment option for patients with catecholamine resistance.

SourceUniversity of Michigan·JournalDevelopmental Cell·DateJun 12, 2020

Pandemics and the environment: China's COVID-19 interventions reduced nitrogen dioxide levels

Satellite measurements revealed a 48% drop in nitrogen dioxide densities over China following government announcements of the first reported COVID-19 case and lockdowns. This significant reduction is attributed to a substantial decrease in fossil fuel consumption, with an additional 21% drop compared to 2015-2019.

Analysing the effects two decades after a mining spill

A study by University of Seville experts found an important decrease in total metal concentrations and a shift towards less toxic forms in the River Guadiamar sediment. The research suggests that measures taken after the disaster have improved water quality, but ongoing monitoring is necessary to maintain this progress.

SourceUniversity of Seville·JournalJournal of Environmental Management·DateJun 12, 2020

Silicones may lead to cell death

A recent study published in Scientific Reports found that silicone molecules from breast implants can initiate processes leading to cell death in human cells. The researchers used cultured cells and observed similarities with programmed cell death, which may have implications for the health effects of silicone breast implants.

SourceRadboud University Nijmegen·JournalScientific Reports·DateJun 12, 2020

Research links personality traits to toilet paper stockpiling

A new study found that people who feel more threatened by COVID-19 and have high levels of emotionality and conscientiousness are most likely to stockpile toilet paper. The study, which surveyed 1,029 adults from 35 countries, also found that older people and Americans were more likely to stockpile toilet paper.

SourcePLOS·JournalPLOS ONE·DateJun 12, 2020

The Lancet Child & Adolescent Health: Experts call for more awareness of the potential impact of physical distancing on adolescent peer relationships and social development

The Lancet Child & Adolescent Health experts call for policymakers to prioritize young people's social development and wellbeing during the pandemic. Research suggests that reduced face-to-face interaction with peers may have detrimental effects on brain development, mental health, and self-esteem in adolescence.

SourceThe Lancet·JournalThe Lancet Child & Adolescent Health·DateJun 12, 2020

All that base

A new machine learning model, BE-Hive, accurately predicts the outcomes of using different base editors to correct genetic mutations. The model discovered new properties and capabilities of base editors, allowing researchers to design novel tools with improved efficiency.

SourceHarvard University·JournalCell·DateJun 12, 2020

Royal Marsden trial leads to practice changing milestone for advanced anal cancer

A randomised clinical trial has shown that a chemotherapy combination of carboplatin and paclitaxel is more effective and better tolerated than previously recommended treatments for patients with advanced anal cancer. The study found that these patients lived seven months longer overall, experiencing less treatment side effects.

SourceThe Royal Marsden NHS Foundation Trust·JournalJournal of Clinical Oncology·DateJun 12, 2020

Face masks critical in preventing spread of COVID-19

A Texas A&M University study found that wearing a face mask can prevent person-to-person spread of the virus, with over 66,000 infections prevented in New York City. The researchers also noted that airborne transmission via respiratory aerosols is the dominant route for COVID-19 spread.

SourceTexas A&M University·JournalProceedings of the National Academy of Sciences·DateJun 12, 2020