[Infectious Diseases] Being selective in fighting infection
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Julia Fahrenkamp-Uppenbrink Tags: Infectious Diseases Source Type: research
[Solar Cells] Passivating traps in perovskites
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Phil Szuromi Tags: Solar Cells Source Type: research
[Regeneration] Hair follicles: Secret to prevent scars?
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Beverly A. Purnell Tags: Regeneration Source Type: research
[Photochemistry] Hydroamination gets a light push uphill
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Jake Yeston Tags: Photochemistry Source Type: research
[Plant Science] Host-pathogen point-counterpoint
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Pamela J. Hines Tags: Plant Science Source Type: research
[Cell Biology] Understanding insulin release
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Stella M. Hurtley Tags: Cell Biology Source Type: research
[HIV] Peak HIV viremia pushes CD8+ T cells
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Lindsey Pujanandez Tags: HIV Source Type: research
[Infection] Touchdown for gut pathogen virulence
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Caroline Ash Tags: Infection Source Type: research
[Glaucoma] Vitamin B3 protects mice from glaucoma
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Priscilla Kelly Tags: Glaucoma Source Type: research
[Mutation Detection] When is a mutation a true genetic variant?
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Laura M. Zahn Tags: Mutation Detection Source Type: research
[Physiology] Sugar rush
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Sacha Vignieri Tags: Physiology Source Type: research
[High-Pressure Physics] Stamping hydrogen into metal
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Brent Grocholski Tags: High-Pressure Physics Source Type: research
[Bacterial Division] Coordinating cell wall synthesis and cell division
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Stella M. Hurtley Tags: Bacterial Division Source Type: research
[Infectious Disease] Hypoxic conditioning of immune cells
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] (Source: This Week in Science)
Source: This Week in Science - February 16, 2017 Category: Science Authors: Angela Colmone Tags: Infectious Disease Source Type: research
[Planetary Science] Organic compounds detected on Ceres
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] (Source: This Week in Science)
Source: This Week in Science - February 15, 2017 Category: Science Authors: Keith T. Smith Tags: Planetary Science Source Type: research
