Neuroscience

Decoding the chemistry of fear

Ask a dozen people about their greatest fears, and you'll likely get a dozen different responses. That, along with the complexity of the human brain, makes fear—and its close cousin, anxiety—difficult to study. For this ...

Genetics

Study highlights danger of vitamin B12 deficiency

Using roundworms, one of Earth's simplest animals, Rice University bioscientists have found the first direct link between a diet with too little vitamin B12 and an increased risk of infection by two potentially deadly pathogens.

Medical research

Identification of bacterial proteins that promote neurodegeneration

Growing evidence indicates that gut microbiota plays a critical role in regulating the progression of neurodegenerative diseases such as Parkinson's disease (PD) and Alzheimer's disease (AD), but the molecular mechanism underlying ...

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