Sunday, October 17, 2010

Charles Richard Drew and Blood Transfusion


Charles Richard Drew (3 June 1904 – 1 April 1950) was an African-American physician, surgeon and medical researcher. He researched in the field of blood transfusions, developing improved techniques for blood storage, and applied his expert knowledge to developing large-scale blood banks early in World War II. This allowed medics to save thousands of lives of the Allied forces. The research and development aspect of his blood storage work is disputed. Drew protested against the practice of racial segregation in the donation of blood, as it lacked scientific foundation, an action which cost him his job. In 1943, Drew's distinction in his profession was recognized when he became the first black surgeon selected to serve as an examiner on the American Board of Surgery.

In late 1940, during World War II before the US entered the war, and just after earning his doctorate, Drew was recruited by John Scudder to help set up and administer an early prototype program for blood storage and preservation. He was to collect, test, and transport large quantities of blood plasma for distribution in Great Britain. Drew went to New York to direct the United States' Blood for Britain project. The Blood for Britain project was a project to aid British soldiers and civilians by giving US blood to Great Britain.


Drew created a central location for the blood collection process where donors could go to give blood. He made sure all blood plasma was tested before it was shipped out. He ensured that only skilled personnel handled blood plasma to avoid the possibility of contamination. The Blood for Britain program operated successfully for five months, with total collections of almost 15,000 people donating blood, and with over 5,500 vials of blood plasma. As a result, the Blood Transfusion Betterment Association applauded Drew for his work

Monday, October 4, 2010

Robert Edwards - Nobel '10

The Nobel Prize in physiology or medicine has been awarded this year to Robert G. Edwards, an English biologist who, with a physician colleague, Patrick Steptoe, developed the in vitro fertilization procedure for treating human infertility.

Since the birth of the first test tube baby, Louise Brown, on July 25, 1978, some four million babies worldwide have been conceived by mixing eggs and sperm outside the body and returning the embryo to the womb to resume development. The procedure overcomes many previously untreatable causes of infertility.

Dr. Edwards, a physiologist who spent much of his career at Cambridge University in England, spent more than 20 years solving a series of problems in getting eggs and sperm to mature and successfully unite outside the body. His colleague, Dr. Steptoe, was a gynecologist and pioneer of laparoscopic surgery, the method used to extract eggs from the prospective mother.

Dr. Steptoe, who presumably would otherwise have shared the prize, died in 1988. Dr. Edwards, who born in 1925, has now retired as head of research from the Bourn Hall Clinic in Cambridge, which he and Dr. Steptoe founded as the world’s first center for in vitro fertilization.

Though in vitro fertilization is now widely accepted, the birth of the first test tube baby was greeted with intense concern that the moral order was subverted by unnatural intervention in the mysterious process of creating a human being. Dr. Edwards was well aware of the ethical issues raised by his research and took the lead in addressing them.

The objections gradually died away, except on the part of the Roman Catholic Church, as it became clear that the babies born by in vitro fertilization were healthy and that their parents were overjoyed to be able to start a family. Long-term follow-ups have confirmed the essential safety of the technique.

The deliberations of the prize-giving committee at the Karolinksa Institute in Sweden are confidential, and it is unclear why it took so long to acknowledge Dr. Edwards’s achievement. The committee routinely ignores the stipulation in Alfred Nobel’s will that the prize should be awarded for a discovery made the preceding year, because it takes longer than that to evaluate most scientific claims, but delays of 30 years or more are unusual. The Lasker Foundation in New York, whose jurors often anticipate the Nobel Prize committee, awarded Dr. Edwards its prize in 2001.

Dr. Edwards’s research proved too controversial for the Medical Research Council, a government financng agency that is the British equivalent of the National Institutes of Health. In 1971 the council rejected an application from Dr. Edwards and Dr. Steptoe to work on in vitro fertilization, but they were able to continue with private funds.

“In retrospect, it is amazing that Edwards not only was able to respond to the continued criticism of in vitro fertilization, but that he also remained so persistent and unperturbed in fulfilling his scientific vision,” Christer Höög, a member of the Nobel Prize committee, writes on the Nobel Foundation’s Web page.

Image: Lesley and Louise Brown with her son Cameron and Professor Robert Edwards