aging, immunology
Do Microbes Trigger Alzheimer’s Disease?
Do Microbes Trigger Alzheimer’s Disease?
Jill U. Adams | Sep 1, 2017
The once fringe idea is gaining traction among the scientific community.
Infographic: Brain Infection and Alzheimer’s Disease Pathology
Infographic: Brain Infection and Alzheimer’s Disease Pathology
Jill U. Adams | Aug 31, 2017
Emerging evidence links bacterial or viral infection with the neuropathology of Alzheimer’s disease.
Dengue Infection Impairs Immune Defense Against Zika
Dengue Infection Impairs Immune Defense Against Zika
Catherine Offord | Aug 18, 2017
A memory B cell response to Zika virus in dengue-infected patients produced antibodies that were poorly neutralizing in vitro and instead enhanced infection.
A Potential Remedy for the Aging Brain
A Potential Remedy for the Aging Brain
Aggie Mika | Aug 8, 2017
In mice, injected fragments of a naturally occurring protein boost memory in young and old animals and improve cognition and mobility in a model of neurodegenerative disease. 
The Ever-Expanding T-Cell World: A Primer
The Ever-Expanding T-Cell World: A Primer
Ashley P. Taylor | Aug 7, 2017
Researchers continue to identify new T-cell subtypes—and devise ways to use them to fight cancer. The Scientist attempts to catalog them all.
Company Sells a “Biological Age” Kit
Company Sells a “Biological Age” Kit
Diana Kwon | Aug 2, 2017
While the epigenetic clock is a useful tool for research and has solid scientific backing, scientists say the product’s use to consumers is limited.
Stem Cells in the Hypothalamus Slow Aging in Mice
Stem Cells in the Hypothalamus Slow Aging in Mice
Ashley P. Taylor | Jul 26, 2017
Once implanted into animals’ brains, neural stem cells that secrete microRNA-containing vesicles seem to contribute to an anti-aging effect.
Child Lives with HIV for Years Without Treatments
Child Lives with HIV for Years Without Treatments
Bob Grant | Jul 24, 2017
Another case of HIV remission emerges, this time in a South African girl diagnosed as an infant and disease-free for more than eight years.
Mammalian Immunity: What’s RNAi Got to Do with It?
Mammalian Immunity: What’s RNAi Got to Do with It?
Shawna Williams | Jul 21, 2017
A new study adds to the evidence that mammalian cells can use small interfering RNAs to defend against viruses, but questions remain about physiological importance.
Researchers Uncover Previously Unknown Immune Cell Subtypes
Researchers Uncover Previously Unknown Immune Cell Subtypes
Aggie Mika | Jul 17, 2017
Using single-cell RNA sequencing, scientists characterize new populations of dendritic cells and monocytes.