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  • Brain scan study adds to evidence that lower brain serotonin levels are linked to dementia
    In a study looking at brain scans of people with mild loss of thought and memory ability, Johns Hopkins researchers report evidence of lower levels of the serotonin transporter—a natural brain chemical that regulates mood, sleep, and appetite. Their results, the researchers say, suggest that lower serotonin transporters may be drivers of the disease rather […]

Lab News

Water-Based ‘Engine’ Propels Tumor Cells Through Tight Spaces in the Body

Johns Hopkins researchers have discovered a new mechanism that explains how cancer cells spread through extremely narrow three-dimensional spaces in the body by using a propulsion system based on … more

A Tiny Pinch from a ‘Z-Ring’ Helps Bacteria Cells Divide New Mathematical Model Unravels the Mechanics of Microbe Reproduction

In a process that is shrouded in mystery, rod-shaped bacteria reproduce by splitting themselves in two. By applying advanced mathematics to laboratory data, a team led by Johns Hopkins researchers has … more