The researchers found that these stem cells release molecules called microRNAs, which help to regulate gene expression, into the cerebro­spinal fluid.

Real Madrid superstar Cristiano Ronaldo will miss the game, organisers confirmed, robbing the clash of one of its headline players.

VPNs allow users to bypass China's so-called "Great Firewall" aimed at restricting access to overseas sites.

The action taken by the European Commission could lead to Poland being hauled before the European Court of Justice, and eventually given a fine.

A number of others remain in custody. Arrest warrants are out for two more who have fled the country. Supporters say the charges are political.

However, experts say many of North Korea's missiles cannot accurately hit targets. The launch came three weeks after North Korea's first ICBM test.

While initial findings showed the attacker had acted alone it could not be completely ruled out that he had accomplices.

Africa’s top oil producer is trying to expand exploration in areas outside the restive Niger River delta in the south.

When asked about the current political climate, Jagger is critical. “We obviously have a lot of problems. So am I politically optimistic? …No.”