Scientists in the USA have succeeded in growing an almost fully formed human brain in a lab.
The miniature brain is about the size of a pencil eraser and resembles that of a five-week old foetus.
The brain was created by scientists at Ohio State University. Professor Rene Anand from the department said: “It not only looks like the developing brain, its diverse cell types express nearly all genes like a brain.
“We’ve struggled for a long time trying to solve complex brain disease problems that cause tremendous pain and suffering. The power of their brain model bodes very well for human health because it gives us better and more relevant options to test and develop therapeutics other than rodents.”
It contains 99 per cent of the genes present in the human foetal brain and has an identifiable structure.
It is hoped the feat could prove crucial in the study of developmental diseases and in aiding understanding of conditions such as Alzheimer’s, Parkinson’s and autism.
Previously, mouse brains have been a primary source of research for scientists exploring human brain development. However, whilst rodents share many similarities, the fundamental differences have been limiting scientific research in the field.