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.
Specially bred rats and mice are the mammals used most often in medical research. Because rats and mice have so many biological similarities to humans, they make up 90â95% of the mammals in biomedical research.pecies such as dogs, cats, and non-human primates account for less than 1% of all mammals in research. Although not used widely, these animals have characteristics that make them vitally important for the study of heart disease, neurological disorders, and diseases such as HIV/AIDS.