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Science News Archive 2019 - Page 401


Page 401 of 486

Antibiotics and PPIs linked to increased risk of infectious diarrhea in children

A study published in Infection Control & Hospital Epidemiology found that prior antibiotic exposure and use of proton pump inhibitors may increase the risk for hospitalized children to contract Clostridioides difficile infections. Clinicians should judiciously use antibiotics in hospitalized children to minimize this risk.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateMar 7, 2019

Breakthrough could enable cheaper infrared cameras

A new method for making infrared cameras using quantum dots offers faster production and better performance. This technology could enable the use of infrared cameras in autonomous vehicles, smartphones, and other devices, improving their ability to detect heat signatures and see through smoke and fog.

SourceUniversity of Chicago·JournalNature Photonics·DateMar 7, 2019

Chemical hydrogen storage system

Researchers at the Weizmann Institute of Science have developed a chemical storage system based on simple and abundant organic compounds. The system uses ethylenediamine and methanol to store and release hydrogen with high theoretical capacity and efficiency.

SourceWiley·JournalAngewandte Chemie International Edition·DateMar 7, 2019

Potential new treatment for heart attack

Researchers have discovered a potential new drug that can minimize heart muscle death caused by stress signals after a heart attack. The treatment, targeting protein MAP4K4, reduced damage by 60% in mice and has the potential to be developed into an injection for routine clinical use.

SourceBritish Heart Foundation·JournalCell Stem Cell·DateMar 7, 2019

How the microbiota controls neutrophil activity

The microbiota controls neutrophil activity by producing Serum Amyloid A (Saa), a host protein that restricts aberrant activation while enhancing migration to wounds. Saa reduces bactericidal activity and expression of pro-inflammatory genes in neutrophils.

SourcePLOS·JournalPLOS Pathogens·DateMar 7, 2019

Study reveals elevated risk of cardiovascular disease in young

A new study published in Diabetologia found that women who develop gestational diabetes (GDM) during pregnancy are at double the risk of cardiovascular disease (CVD) compared to those without GDM. The study also revealed that this increased risk remains even if women with GDM do not go on to develop type 2 diabetes.

SourceDiabetologia·JournalDiabetologia·DateMar 7, 2019

How antifreeze proteins make ice crystals grow

Researchers from Bielefeld University and international partners have confirmed two-fold ability of antifreeze molecules to trigger or inhibit ice crystal formation depending on temperature. This discovery challenges the long-held view that antifreeze proteins only inhibit ice crystal growth.

SourceBielefeld University·JournalThe Journal of Physical Chemistry Letters·DateMar 7, 2019

At the limits of detectability

Researchers at TUM have developed a compact instrument to determine the spectral properties of individual molecules, capturing detailed information on molecule-environment interactions. This breakthrough aims to accelerate the identification of efficient molecules for future organic solar cells.

SourceTechnical University of Munich (TUM)·JournalProceedings of the National Academy of Sciences·DateMar 7, 2019

Embryos' signals take multiple paths

Researchers found that stem cells are sensitive to the speed of signaling molecule delivery, not just its concentration. This discovery highlights the dynamic interactions between morphogens and cells during embryonic development, allowing for more precise control over cell fates and potentially leading to new ways to drive cellular di...

Potential treatment for cancer in butterfly disease

Researchers have discovered a potential treatment for cancer in patients with epidermolysis bullosa, a severe skin disease also known as butterfly disease. The new drug, rigosertib, was shown to be highly effective at killing cancer cells in preclinical studies and may target the cancer without harming healthy cells.

SourceThomas Jefferson University·JournalClinical Cancer Research·DateMar 7, 2019