Research found that #youngBlood by itself will not work as effective #medicine. It's more accurate to say that there are #inhibitors in old #blood that we need to target to #reverseAgeing.
#Vampire #treatments that make people look younger and #livelonger don't actually work, scientists conclude. We might be able to reverse ageing by targeting our own, #oldBlood, however
Max Schreck as the vampire Count Orlok in Murnau's 1922 horror classic Nosferatu (Getty)
Max Schreck as the vampire Count Orlok in Murnau's 1922 horror classic Nosferatu (Getty) ( Getty )
The dream of using "vampire" techniques to look younger and live longer might have delighted goths and the vain alike. But scientists have warned them not to get too excited.
Scientists have said that the treatments, which involve taking young blood and injecting it into older people in an attempt to rejuvenate people's bodies, don't actually work.
But the research has found that old blood does in fact perform an important part of the ageing process and contributes to declining health. That might mean that there are treatments for older blood that helps relieve those effects.
The same team had previously found that giving older mice younger blood seemed also to give them a new lease of life. They published their work in a study in 2005.
It quickly led to talk of vampires and hopes that similar techniques could be used to improve the lives of people, too.
But the study wasn't able to control the flow of blood precisely enough to be sure about how the effect was working.
For the new study, precise measurements were made of the way old mice responded to young blood, and vice-versa.
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It showed that young blood made little or no difference to indicators of ageing and health in older mice.
In contrast, young mice receiving older blood experienced significant deterioration of their tissues and organs. The rapid changes occurred within 24 hours and affected multiple tissues including muscle, liver and brain.
Lead scientist Dr Irina Conboy, from the University of California at Berkeley, US, said: "Our study suggests that young blood by itself will not work as