Hormone Hcg • Direct Link

: The hormone was first identified in 1927 by scientists Selmar Aschheim and Bernhard Zondek, who noticed its presence in the urine of pregnant women.

: Early pregnancy tests were biological assays. In the 1920s and 30s, a woman's urine was injected into immature mice, rats, or rabbits; if the animal’s ovaries matured, it indicated a positive result. Hormone Hcg

Often called the "pregnancy hormone," Human Chorionic Gonadotropin (hCG) is a glycoprotein produced primarily by the placenta during pregnancy . It is most famous for being the chemical detected by at-home pregnancy tests, but its biological roles extend far beyond just being a marker of conception. The Evolution of Discovery : The hormone was first identified in 1927