Emulsion Definition. An emulsion is a colloid of two or more immiscible liquids where one liquid contains a dispersion of the other liquids. In other words, an emulsion is a special type of mixture made by combining two liquids that normally don't mix. The word emulsion comes from the Latin word meaning to milk (milk is one example of an emulsion of fat and water). The process of turning a liquid mixture into an emulsion is called emulsification.
During the drug testing process, the medicine in Saxenda Â® caused rats and mice to develop tumors of the thyroid gland. Some of these tumors were cancers. It is not known if Saxenda Â® will cause thyroid tumors or a type of thyroid cancer called medullary thyroid cancer in people.
Rats and mice are the animals most often used in acute toxicity testing. It is difficult to extrapolate information on human responses to chemicals based on these animal test methods because different species of animals have wide variations in their responses to chemicals.he animalsâ bone marrow is then evaluated to examine the effects on the nucleus of the blood cells. In a similar procedure, the micronucleus test, a blood sample is obtained from the animals, usually mice, and analyzed for an increased presence of micronuclei, a sign of chromosomal damage.