Education
Yale University.
Yale University.
Kleiner"s grandparents Israel and Eva (Meyer) were Jews who came to America from Bavaria, Germany in 1848. Kleiner received his Doctor of Philosophy in Biochemistry at Yale in 1909. From 1910, he worked as an assistant in physiology at the Rockefeller Institute, until 1914 when he became an associate.
In 1919 he was appointed as Professor at the New York Homeopathic Medical College (later to become New York Medical College).
Here he served as acting Dean in 1921 and then as Dean from 1922-1925. In 1935 he became professor of Biochemistry, and from 1948 was the Director of the Department of Biochemistry.
In 1919, at the Rockefeller Institute, Kleiner was one of the first to demonstrate the effect of extracts from the pancreas on animals, causing hypoglycemia. These were the early efforts which eventually helped lead to the discovery of insulin.