SCIENCE IN THE NEWS DAILY
Infantile Anaemia: Blood Simple
from the Economist
Childhood anaemia is a problem. Around the world, almost a quarter of under-fives suffer from it. And anaemia is not a trivial thing. A child's development, both physical and mental, is stifled by a lack of iron. The reason is that, besides its well-known role in haemoglobin, the oxygen-transporting molecule in the blood, iron is also involved in many aspects of brain development.
A study just published in the British Medical Journal by Ola Andersson, an obstetrician at the Hospital of Halland in Halmstad, Sweden, suggests that a simple change of medical procedure when a child is born may bring a big reduction in anaemia. That change is not to cut the umbilical cord linking the child with the placenta straight after birth--as is standard practice--but, rather, to give it time to transfer more of the placenta's contents (particularly its blood) to the child it has been nurturing.
The argument in favour of rapid clamping is that too much blood may flow from the detached placenta to the newly born child, and that this can cause problems of its own. But that is unproven, and would be a strike against evolution because, in nature, the umbilicus of a mammal usually does remain attached to the infant for some time after birth. Only the modern technology of clamps and sharp scissors permits the slithery tube to be dealt with at speed.
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