viruses, microbiology, cell & molecular biology
Sugar Time
Sugar Time
Catherine Offord | Mar 1, 2016
Metabolic activity, not light, drives the circadian clock in cyanobacteria.
Characterizing Sleep
Characterizing Sleep
James M. Krueger, Sandip Roy | Mar 1, 2016
Sleep-like patterns of neural activity are apparent not just at the level of the whole brain, but also in isolated neural circuits.
Week in Review: February 22–26
Week in Review: February 22–26
Jef Akst | Feb 26, 2016
Questions about how E. coli evolves; spermatids in a dish; fighting bacteria with virus-like molecule; what drives metastasis; antibodies fight Ebola in monkeys
Mutations Not Tied to Metastasis
Mutations Not Tied to Metastasis
Kerry Grens | Feb 25, 2016
Clinical cases link immune changes to a cancer’s spread through the body, but find no role for so-called “driver” mutations.
Similar Data, Different Conclusions
Similar Data, Different Conclusions
Ashley P. Taylor | Feb 23, 2016
By tweaking certain conditions of a long-running experiment on E. coli, scientists found that some bacteria could be prompted to express a mutant phenotype sooner, without the “generation of new genetic information.” The resulting debate—whether the data support evolutionary theory—is more about semantics than science.
Adjustable Brain Cells
Adjustable Brain Cells
Ruth Williams | Feb 18, 2016
Neighboring neurons can manipulate astrocytes. 
Breast Milk Sugars Support Infant Gut Health
Breast Milk Sugars Support Infant Gut Health
Anna Azvolinsky | Feb 18, 2016
Oligosaccharides found in breast milk stimulate the activity of gut bacteria, promoting growth in two animal models of infant malnutrition.
Stem Cells to Blame for Hair Loss?
Stem Cells to Blame for Hair Loss?
Jef Akst | Feb 8, 2016
Two new studies point to factors in hair follicle stem cells as players in age-related hair loss.
Aging Shrinks Chromosomes
Aging Shrinks Chromosomes
Ruth Williams | Feb 5, 2016
A study on human cells reveals how cellular aging affects the 3-D architecture of chromosomes.
Mysterious Mechanisms of Cardiac Cell Therapy
Mysterious Mechanisms of Cardiac Cell Therapy
Kerry Grens | Feb 4, 2016
Injections of progenitor cells into damaged rat hearts may improve function, but not because the implants themselves are creating new muscle.