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Science News for September 3, 2012


Reciprocity an important component of prosocial behavior

Researchers discovered that brown capuchin monkeys were more prosocial when given the opportunity to alternate and help each other, but not when tracking individual past choices. This suggests that reciprocity fosters generosity in humans as well, regardless of familiarity or group affiliation.

SourceEmory Health Sciences·JournalProceedings of the National Academy of Sciences·DateSep 3, 2012

Australian shipping emissions identified

A recent study by CSIRO and Australian Maritime College reveals that ship engine exhaust emissions account for over a quarter of nitrogen oxide emissions in the Australian region. These non-greenhouse gases can affect air quality near coastal regions and have consequences for human health and amenity.

Children taking steroids for asthma are slightly shorter than peers

A new study published in the New England Journal of Medicine found that children taking inhaled steroid drugs for asthma are slightly shorter at their full adult height compared to those who don't use the medication. The study followed over 1,000 children aged 5-12 and found a mean difference of about half an inch in adult height.

SourceWashU Medicine·JournalNew England Journal of Medicine·DateSep 3, 2012

New infrared spectroscopy technique

Researchers at Ruhr-University Bochum developed a new method for studying the interaction between pharmaceuticals and their target proteins. The new technique uses infrared difference spectroscopy, which allows for the analysis of dynamic processes in proteins that were previously inaccessible.

SourceRuhr-University Bochum·JournalChemPhysChem·DateSep 3, 2012

High levels of DDT in breast milk

Researchers have measured high levels of DDT in breast milk from nursing mothers in malaria-stricken villages in South Africa, far exceeding World Health Organization limits. The findings highlight the need to decrease exposure to DDT, which has been linked to various health issues, including cancer and impaired reproductive health.

SourceLinköping University·JournalEnvironmental Pollution·DateSep 3, 2012

Study examines association between Parkinson disease, cancer

A study published in Archives of Neurology found an association between Parkinson disease and an increased risk of prostate cancer and melanoma in patients with PD and their relatives. The research used a Utah genealogic database and a statewide cancer registry to examine the relationship between the two diseases.

SourceJAMA Network·JournalArchives of Neurology·DateSep 3, 2012

Bees, fruits and money

The pollination services provided by insects like bees and hover-flies are crucial for global food production, but declining pollinators threaten this ecosystem service. The loss of pollinators could lead to reduced crop yields and decreased fruit and vegetable availability, exacerbating food insecurity.

New long-term antimicrobial catheter developed

Researchers at the University of Nottingham have developed a novel antimicrobial catheter that can kill most urinary bacteria, including Proteus bacteria, for up to twelve weeks. This innovation has significant advantages over existing solutions, offering a solution to recurrent infections in long-term catheter users.

Tigers take the night shift to coexist with people

In Chitwan National Park, Nepal, tigers have shifted their nocturnal activity to coexist with people, indicating a potential middle ground for human and tiger survival. The study suggests that conservation efforts can consider both nature and humans, paving the way for sustainable solutions.

SourceMichigan State University·JournalProceedings of the National Academy of Sciences·DateSep 3, 2012

Obesity and metabolic syndrome associated with impaired brain function in adolescents

A new study reveals that metabolic syndrome is associated with impaired brain function in adolescents, including lower math and spelling scores, decreased attention span, and reduced brain structure. The findings emphasize the importance of addressing childhood obesity to prevent long-term cognitive and brain impairments.

Targeting inflammation to treat depression

Researchers found that a medication inhibiting inflammation showed promise in treating major depression, especially in individuals with high levels of inflammation. The study employed infliximab, an antibody blocking tumor necrosis factor, and demonstrated improved symptoms in subjects with elevated C-reactive protein levels.

SourceEmory Health Sciences·JournalArchives of General Psychiatry·DateSep 3, 2012