Genetics

In cancer, an embryonic gene-silencing mechanism gone awry

There are some genes that are only activated in the very first days of an embryo's existence. Once they have accomplished their task, they are shut down forever, unlike most of our genes, which remain active throughout our ...

Genetics

Gene 'switch' may explain DiGeorge syndrome severity

The discovery of a 'switch' that modifies a gene known to be essential for normal heart development could explain variations in the severity of birth defects in children with DiGeorge syndrome.

Medical research

Detector of DNA damage: Structure of a repair factor revealed

Double-stranded breaks in cellular DNA can trigger tumorigenesis. Researchers from Ludwig-Maximilians-Universitaet (LMU) in Munich, Germany, have determined the structure of a protein involved in the repair and signaling ...

Neuroscience

The neurological basis for fear and memory

Fear conditioning using sound and taste aversion, as applied to mice, have revealed interesting information on the basis of memory allocation.

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