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In brief: Mutation explains why some people are more vulnerable to viral brain infection

Scientists identified mutations in a single gene that impair immunity to viruses in a region of the brain called the brain stem.

Scientists shed light on biological roots of individuality

A new study illuminates the biology that guides behavior across different stages of life in worms, and suggests how variations in specific neuromodulators in the developing nervous system may lead to occasional variations.

New tool for tracking “kiss-and-run” communication between cells could advance research in multiple fields

Virtually all aspects of life and disease depend of brief exchanges between cells. A new technique to study cell-to-cell contacts lets interacting cells “smear” one another with the biological equivalent of lipstick.

Uncovering the early origins of Huntington’s disease

The symptoms of Huntington’s typically appear in middle age, but the disease may in fact originate much earlier. New research shows that a patient’s neural abnormalities may arise already during embryonic development—suggesting that treating the disease early may be beneficial.

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In brief: Variation between strains may account for differences in people’s vulnerability to infection

New research shows that subtle differences between bacterial strains may cause dramatic differences in outcome between people infected with the same microbe.

3D imaging of fat reveals potential targets for new obesity treatments

With new imaging methods, scientists hope to make significant progress in the fight against obesity. A new report reveals striking images of neural projections within fat tissue, and clues for the development of new drugs.

In brief: New clues about how cells restart stalled replication

Scientists studying the cell’s DNA-copying machinery have discovered a molecular mechanism that helps reactivate it should it stop prematurely. Its function may prevent genetic errors like those that cause cancer.

Brain research points the way to new treatments for nicotine addiction

Scientists have discovered a group of brain cells that may play a role in keeping smokers addicted to nicotine. Their work could ultimately lead to new drugs to help people conquer their tobacco dependence.

Daniel Kronauer, who uses ants to study social behavior, is promoted

Kronauer has been promoted to associate professor. He has dedicated his laboratory to investigating the molecular basis underlying complex social behavior among insects.

Mosquito sex protein could provide key to controlling disease

A protein transferred from male to female mosquitoes during sex influences female mating behavior—a phenomenon that could be exploited to limit the spread of mosquito-borne illnesses like Zika and dengue.