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Science News Archive February 2017 - Page 17


Page 17 of 37

A case where smoking helped

Researchers found that a specific mutation in hemoglobin makes it selectively bind to carbon monoxide from cigarette smoke, preventing oxidation and anemia. The father's smoking habit prevents him from developing the disease, while his daughter requires treatment with antioxidants to manage her condition.

SourceRice University·JournalJournal of Biological Chemistry·DateFeb 16, 2017

Glowing mice suggest new gene therapy technique

A novel gene therapy technique, called charge-altering releasable transporters (CARTs), has been developed to deliver messenger RNA (mRNA) into cells. This method overcomes the challenge of delivering mRNA through cell membranes and shows promise for treating diseases by inserting therapeutic proteins.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateFeb 16, 2017

Pizza, burgers and the like: A single high-fat meal can damage the metabolism

A single high-fat meal can reduce the body's sensitivity to insulin, leading to increased fat deposits in the liver and changes in energy metabolism. This study found that even a small amount of palm oil triggers insulin resistance, which can contribute to the development of type 2 diabetes and fatty liver disease.

SourceDeutsches Zentrum fuer Diabetesforschung DZD·JournalJournal of Clinical Investigation·DateFeb 16, 2017

Same behavior outdoors and in the lab

Desert ants have an internal navigation system that allows them to measure distance by recording steps taken and orient themselves using the sun. In a lab experiment, researchers created a spherical treadmill for the ants to navigate on, showing high precision in their navigation skills.

SourceUniversity of Freiburg·JournalJournal of Experimental Biology·DateFeb 16, 2017

Four-stroke engine cycle produces hydrogen from methane and captures CO2

Researchers at Georgia Institute of Technology have developed a laboratory-scale system that produces green hydrogen at relatively low temperatures, capturing CO2 emissions. The CO2/H2 Active Membrane Piston (CHAMP) reactor can be scaled up or down to meet specific needs and operates more slowly than conventional engines.

SourceGeorgia Institute of Technology·JournalIndustrial & Engineering Chemistry Research·DateFeb 16, 2017

Encouraging signs for potential new antibiotic

A study published in the Journal of Antimicrobial Chemotherapy reveals that epidermicin is as effective as mupirocin in eradicating MRSA from cotton rats' nostrils. The results justify further development of epidermicin as an alternative to existing antimicrobial agents.

SourceUniversity of Plymouth·JournalJournal of Antimicrobial Chemotherapy·DateFeb 16, 2017

Robbed of royalty: Mutilation and social determination of female Diacamma ants

A study on female Diacamma ants reveals that gene expression patterns primarily determine caste differentiation in nutrition-related genes. The research found that only a small number of genes differentiate the reproductive and worker castes, supporting the idea that increased energy requirement may drive eusociality evolution.

Emotions are cognitive, not innate, researchers conclude

New York University researchers LeDoux and Brown argue that emotions arise from a general cortical network of cognition, similar to conscious experiences. They propose a higher-order theory of emotional consciousness, challenging existing theories that consider emotions as innately programmed in the brain.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateFeb 15, 2017