The suitability and efficiency of human follicular fluid as a protein supplement in
human in vitro fertilization programs.
Past and Recent Development 1989
Human In Vitro Fertilization Mina Alikani, M.
Improved pregnancy rate in
human in vitro fertilization with the use of a medium based on the composition of human tubal fluid.
(2.) Ethics Advisory Board, 1979, Report and Conclusions: HEW Support of Research Involving
Human In vitro Fertilization and Embryo Transfer, Washington, D.C.
Much of what we know about the importance of preimplantation nutrition in humans we have learned from
human in vitro fertilization studies that suggest that certain amino acids (among other essential nutrients) are necessary substrates for the development and viability of the conceptus posttransfer (Conaghan et at.
Colman also offered the scientists a sense of cloning's efficiency by comparing it with
human in vitro fertilization (IVF).
Dolly was actually the beneficiary of well-established
human in vitro fertilization technology: In the 277 tries, only 29 of the fused udder cells actually became embryos, which were implanted in 13 ewes, of which one became pregnant and gave birth.
Although
human in vitro fertilization has become routine, it produces pregnancy only 20 to 25 percent of the time.