Dr K.Nagai with tube of haemoglobin blood sub'ute

Dr K.Nagai with tube of haemoglobin blood sub'ute

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This image is part of the feature Artificial Blood

Credit: DAVID PARKER/SCIENCE PHOTO LIBRARY

Caption: Dr Kiyoshi Nagai, a scientist at the U.K. Medical Research Council (MRC) Laboratory of Molecular Biology, Cambridge, holds a phial of human haemoglobin intended as a blood substitute. The need to develop a blood substitute has arisen because of increasing concern over contamination of blood stocks with viral & bacterial pathogens, such as HIV, the virus causing AIDS. The products of earlier attempts using recombinant DNA techniques on the bacteria Escherichia coli & Saccharomyces cerevisiae had proved toxic to the kidneys. This latest version, developed by scientists at the MRC & Somatogen Inc. in the U.S., has overcome this problem.

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Keywords: blood subs'te, blood substitute, dna, haemoglobin, haemoglobin blood substitute, human blood, kiyoshi, nagai, portraits, recombinant, recombinant dna, surname n

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