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image: Distinct Regions Drive Responses to Anxiety, Fear

Distinct Regions Drive Responses to Anxiety, Fear

By Catherine Offord | January 1, 2018

Researchers map brain activity associated with a person’s anticipation of or direct confrontation with danger.

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image: Microglia Turnover in the Human Brain

Microglia Turnover in the Human Brain

By Shawna Williams | October 1, 2017

Researchers find that about a quarter of the immune cells are replaced every year.

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Pauses may help cells fine-tune gene expression.

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image: Researchers Identify Clue to Asymmetric Cell Division

Researchers Identify Clue to Asymmetric Cell Division

By Shawna Williams | September 1, 2017

Phosphorylation of a surface protein on endosomes is key to the organelles’ uneven distribution in daughter cells.

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Using single-cell RNA sequencing, scientists characterize new populations of dendritic cells and monocytes.

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The presence of similar light-emitting enzymes in the distantly related organisms lends new insight into bioluminescence evolution.

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image: Long-Term Memory Storage Begins Immediately

Long-Term Memory Storage Begins Immediately

By Kerry Grens | June 1, 2017

In mice, cells in the prefrontal cortex—where memories are maintained long-term—start to encode a fearful experience right from the start.

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Time-lapse imaging shows the immune cells transferring chemical signals during pigment pattern formation in developing zebrafish.

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Scientists discover transcripts from the same gene that can express both proteins and noncoding RNA.  

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Mice engineered to overproduce the organelles involved in cell division spontaneously develop malignancies.

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