CHAU2155 This is a vintage letter fully hand written by Professor Dr Harry Goldblatt which was part of a collection from a medical student in the 1970s and 80s writing to historic doctors and surgeons. It is approx 8" x 6" in mint condition - please note the background sheet also shown in the listing is just from the album page and for reference only but I will also include - the letter is fully hand written and signed by Professor Goldblatt. Please see all my other scientist and surgeon autographs from this same collection.
As a pathologist, Goldblatt had observed narrowing of renal blood vessels in autopsies of people with hypertension. He hypothesized that decreased blood flow to the kidneys could have a role in increasing blood pressure. To test this, he partially clamped shut the renal arteries in dogs to decrease the blood flow, and observed a rise in blood pressure in response. He published these findings in 1934. In later years, it was discovered that the lack of blood flow to the kidneys causes a release of renin, triggering vasoconstriction and a corresponding increase in blood pressure.[ Because of his contributions, the World Health Organization has designated "Goldblatt units" as the standard unit of measure of renin.In 1973, Goldblatt was inducted into the National Academy of Sciences. And in 1976, he received the Scientific Achievement Award of the American Medical Association.
