The royal jelly had no effect on the leukemia cells, but it had dramatic effects on sarcoma cells. Royal jelly, however, has not lived up to expectations that it is an important anti-aging substance. But it is not without medical interest. Royal jelly consists of an emulsion of proteins, sugars, lipids and some other substances in a water base. Proteins make up about 13% of royal jelly. Most of the proteins comprise a family called major royal jelly proteins.
Cells were first discovered by Robert Hooke in 1663.
Origin of the term Stem Cells â¢ The words âstem cellsâ were first used by Haeckel in 1868 to describe the origin of multicellular organisms from a unicellular organism.â¢ Regaud in 1901 used the term FIRST for self-renewal for spermatogonial stem cells in the testis.