Back to life from frozen state

Interest in In vitro fertilization (IVF) started way back in 1878 when the German Scientist W. Schrenk attempted to fertilize rabbit eggs in the laboratory. In 1934 Gregory Pincus was able to fertilize rabbit eggs in the laboratory. John Rock of Harvard University in 1944 mixed human eggs from cadavers with sperms and observed fertilization. In 1953, Dr Landrum Shettles fertilized human eggs to grow up to a solid mass of cells. Dr M. C. Chang in 1960 performed In Vitro Fertilization and Embryo Transfer (IVF-ET) on a female rabbit and achieved a pregnancy. In 1961 Italian Doctor Daniele Petrucci completed a successful IVF using human gametes resulting in an embryo which was destroyed after 29 days due to tissue malformation1.