Argentina recipient, discovered the role of pituitary hormones in regulating glucose in animals, and shared the Nobel Prize in Physiology or Medicine in 1947. Luis Leloir discovered how organisms store energy converting glucose into glycogen and the compounds which are fundamental in metabolizing carbohydrates, receiving the Nobel Prize in Chemistry in 1970. César Milstein did extensive research in antibodies, sharing the Nobel Prize in Physiology or Medicine in 1984. Argentine research has led to treatments for heart diseases and several forms of cancer. Domingo Liotta designed and developed the first artificial heart that was successfully implanted in a human being in
Human rights in Argentina suicide. In March a federal court released two Coast Guard constables who were arrested in connection with the case. In March 2008 the National Human Rights Secretariat pressed homicide charges against former economy minister Jose Martinez de Hoz, who served under the military dictatorship, for the death of economist Juan Carlos Casariego Del Bel. In March 2008 former navy lieutenant commander Ricardo Cavallo was extradited from Spain to Argentina to face charges of crimes against humanity committed during the military dictatorship. Cavallo was indicted in July and remained in pretrial detention at year's end. In May 2008 federal authorities indicted