More controversy on embryonic stem cell research

Embryonic stem cell research might now be more potentially viable for the UK Stem Cell Bank, which learned that samples from 150 random human embryos, far fewer than previously thought, might be able to generate materials beneficial for two thirds of the population. Embryonic stem cells can mature into various types of tissue that can potentially be used to replace “diseased or damaged tissue in conditions such as diabetes and neurodegenerative disorders.” A University of Cambridge team studying such potentialities has explained that the tissues generated from a mere ten samples of specific genetic makeup could theoretically support a UK bank. Researcher Professor Roger Pederson points out that a selective process as described would require “additional regulatory review.”

Displeased opponents say "false hope" is being raised among "desperate patients". Disregarding such criticisms, many scientists welcome stem cell research from spare IVF embryos as offering the possibility of a more cost-effective and practical alternative to therapeutic cloning. The scientific team calculated that cells from 150 random embryos would be enough to provide the best possible match for 13% of recipients, a favourable level of match for 65%, and some use for as many as 85%. Surprisingly, just 10 types of specifically selected genetic material would be enough to provide a favourable level of match for 78% of recipients.

At present the UK bank contains stem cells suitable only for research. Professor Pedersen told the BBC News website that “this research tells us is that the number of lines needed to achieve a significant clinical value is in the practical realm.” Professor Pederson also said that researchers were already working from spare IVF embryos. Dr Glyn Stacey, director of the UK Stem Cell Bank, acknowledged the importance of recent findings, but admitted researchers were still “a long way away in terms of establishing the basic cell culture methods” and do not know “whether all stem cell lines will give the full range of tissues." The charity Life argues that research had shown adult stem cells preferable to embryonic stem cells fro the purposes of treating disease. Spokesman Matthew O'Gorman said: "The UK stem cell debate is obscured by hype which only serves to raise false hope among desperate patients. “Embryonic stem cell research involves destructive experiments on tiny human beings, which is why it has been outlawed in the majority of countries worldwide.” Read more: