Christian de Duve glucagon was the major hormone influencing the breakdown of glycogen (glycogenolysis) in the liver, by which more sugars are produced in the blood. De Duve's original hypothesis that glucagon was produced by pancreatic alpha cells was proved right when it was demonstrated that selectively cobalt-damage alpha cells stopped producing glucagon in guinea pigs, and finally isolated the purified hormone in 1953, including those from birds. De Duve was the first to hypothesise that production of insulin to decrease blood sugar level stimulated the uptake of glucose in the liver, and that there is a balanced production of insulin and glucagon
Transgender hormone therapy (male-to-female) of estradiol), and not to those taking synthetic or other non-bioidentical preparations (e.g., CEEs or ethinylestradiol). Physicians also recommend broader medical monitoring, including complete blood counts; tests of renal function, liver function, and lipid and glucose metabolism; and monitoring of prolactin levels, body weight, and blood pressure. Transgender hormone therapy (male-to-female) Transgender hormone therapy of the male-to-female (MTF) type, also known as feminizing hormone therapy, is hormone therapy and sex reassignment therapy to change the secondary sexual characteristics of transgender people from masculine (or androgynous) to feminine. It is one of two types of transgender hormone therapy (the other being