Animals

New tRNA Sequencing Method Uncovers Microbiome Activity

A new high-throughput sequencing technique created by scientists at the University of Chicago will uncover how naturally occurring microbiomes respond to real-world conditions and diets. The technique, outlined in Nature Communications, directly analyses transfer RNA (tRNA) to give a clear picture of microbial communities’ reactions to environment changes including temperature variations and nutrient availability.

No-Incision CRISPR Reduces Genetic Obesity in Mice

A modified version of CRISPR has been used to reverse genetic obesity in two different mouse models without editing any genes. The technique uses the guidance system in CRISPR to target certain genetic sequences and amplifies existing gene activity to ramp up protein production.

Reprogrammed Skin Cells Shrink Mouse Tumours

Personalised tumour-detecting cells from adult skin cells have been used to shrink brain tumours in mice by up to 5%, scientists have revealed. While the strategy has not yet been fully tested in people, it could in the future give doctors the ability to develop a custom treatment for certain cancer types.

Stem Cells and Gene Editing Create Mice From Two Mothers

Researchers at the Chinese Academy of Sciences have used two female mice to create offspring which subsequently went on to have healthy children of their own. While similar offspring were produced from two male mice, they did not survive for longer than a few days.