Reactions

Reactions

Reactions

When science hits the headlines, we seek the views of expert sources who assess the news rigorously and quickly, according to the available evidence.

Reaction to the result showing cerebrospinal fluid from young mice improves memory in old mice

Cerebrospinal fluid provides nutrients and other elements to brain cells. Scientists now show that by obtaining it from young mice and injecting it into the brains of old mice, the latter recover their memory. The effect is attributed to a protein, Fgf17, presented today in Nature as a possible brain rejuvenation factor. 

 

Reactions to the finding of new combinations of mutations, 'mutational signatures', associated with specific cancers

Whole genome analysis of more than 12,000 tumors has identified new patterns of mutations associated with specific cancers. These combinations generate specific mutational signatures, the study of which provides information on environmental factors causing the mutations. The work is published in Science.