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Research highlights from the current issue of Science Magazine



Published: 2017-02-16T15:51:02-05:00

 



[Planetary Science] Organic compounds detected on Ceres

2017-02-17

Water and organic molecules were delivered to the early Earth by the impacts of comets and asteroids. De Sanctis et al. examined infrared spectra taken by the Dawn spacecraft – [Read More]



[Infectious Disease] Hypoxic conditioning of immune cells

2017-02-17

Oxygen deficiency, or hypoxia, alters immune cell function. How these hypoxia-induced immune cell changes affect the host response to bacterial infection has been unclear. Thompson – [Read More]



[Bacterial Division] Coordinating cell wall synthesis and cell division

2017-02-17

Most bacteria are protected by peptidoglycan cell walls, which must be remodeled to split the cell. Cell division requires the tubulin homolog FtsZ, a highly conserved cytoskeletal – [Read More]



[High-Pressure Physics] Stamping hydrogen into metal

2017-02-17

In 1935, Wigner and Huntington predicted that molecular hydrogen would become an atomic metal at a pressure of 25 GPa. Eighty years and more than 400 GPa later, Dias and Silvera have – [Read More]



[Physiology] Sugar rush

2017-02-17

Flying requires high levels of energy production, which causes muscular oxidative damage. Food-derived antioxidants can protect against such damage; however, nectar is devoid of these – [Read More]



[Mutation Detection] When is a mutation a true genetic variant?

2017-02-17

Large-scale sequencing studies have set out to determine the low-frequency pathogenic genetic variants in individu als and populations. However, Chen et al. demonstrate that – [Read More]



[Glaucoma] Vitamin B3 protects mice from glaucoma

2017-02-17

Glaucoma is the most common cause of age-related blindness in the United States. There is currently no cure, and once vision is lost, the condition is irreversible. Williams et – [Read More]



[Infection] Touchdown for gut pathogen virulence

2017-02-17

Escherichia coli is transformed from a commensal organism into a pathogen by acquisition of genetic elements called pathogenicity islands (PAIs). Katsowich et al.[Read More]



[HIV] Peak HIV viremia pushes CD8+ T cells

2017-02-17

HIV induces widespread immune dysfunction. Animal studies with simian immunodeficiency virus have suggested that early CD8+ T cell responses may reduce viral burden. Takata – [Read More]



[Cell Biology] Understanding insulin release

2017-02-17

Insulin release takes place in two phases: a first rapid burst followed by a series of small exocytic bursts that coincide with pulsatile spikes in cytosolic Ca2+ levels. – [Read More]



[Plant Science] Host-pathogen point-counterpoint

2017-02-17

The arms race between pathogen and host is a well-known phenomenon. Ma et al. have now identified how an enzymatically inactive protein can abet a pathogen's infectivity. The – [Read More]



[Photochemistry] Hydroamination gets a light push uphill

2017-02-17

Hydroamination of olefins is a broadly useful method for making carbon-nitrogen bonds. However, when both the amine and the olefin have multiple alkyl substituents, the reaction can – [Read More]



[Regeneration] Hair follicles: Secret to prevent scars?

2017-02-17

Although some animals easily regenerate limbs and heal broken flesh, mammals are generally not so gifted. Wounding can leave scars, which are characterized by a lack of hair follicles – [Read More]



[Solar Cells] Passivating traps in perovskites

2017-02-17

Low-temperature processing of planar organic-inorganic perovskite solar cells made through solution processing would allow for simpler manufacturing and the use of flexible substrates. – [Read More]



[Infectious Diseases] Being selective in fighting infection

2017-02-17

Antibiotic-resistant bacterial strains are increasingly found in healthy people who show no symptoms. As a result, they are more vulnerable to invasive infections that can be lethal. – [Read More]



[Antiviral Immunity] An encephalitis-boosting microRNA

2017-02-17

Japanese encephalitis virus (JEV), which is related to the Zika and West Nile viruses, targets the central nervous system. The encephalitis induced by JEV inflicts neurological damage – [Read More]



[Coastal Ecosystems] Missing meadows fail to mop up microbes

2017-02-17

Seagrass meadows, a prominent feature of most healthy coastal ecosystems, are often also associated with shallow coral reefs. Many plants have bioremediation qualities, and seagrasses, – [Read More]