April 18, 2007
Cloned genetically engineered cows to produce Insulin in Argentina
Argentina already allows clones. Argentine scientists say they have produced four genetically modified cloned calves that can produce human insulin in their milk. This will provide a cheaper source of insulin to treat type-1 diabetics.
To produce pharmaceutical products from cow's milk, scientists insert the human gene of interest into an embryo before implanting it into a surrogate mother cow. In this case they used a gene for insulin.
Once milk is obtained from the genetically modified cow, it will be purified and refined to extract the insulin. Similar techniques have already been used to produce human proteins in goats and cows.
Argentina, the world's third-biggest beef exporter, is famous for its sweeping Pampas grazing lands and it is one of a handful of countries to have cloned livestock.
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