Assisted reproduction
A chip off the old block, please
Wednesday, March 19th, 2008
Choosing children is not a straightforward business
(sz) How much right do parents have to shape their children? Except in cases of downright neglect, we generally allow them a pretty free hand. The religious, the musical and the sporty all push their offspring down certain paths and—even if just by spending time that could have been used for other pursuits—close off others.
But new reproductive technologies allow parents to choose their children, rather than merely make choices on their behalf. Take Londoners Tomato Lichy and Paula Garfield, who are both profoundly deaf, as is their daughter Molly. They would like another child and, as Ms Garfield is over 40, are considering in vitro fertilisation (IVF) in order to have one. They want that child to be deaf too. That way the new arrival would fit into the family and share in deaf culture, speaking sign language as a mother tongue.
In principle at least, if the couple do choose IVF they could peek at the possibilities before choosing which child to bear. In “pre-implantation genetic diagnosis” (PGD), doctors take a cell or two from each of the embryos produced in vitro. They check which ones carry particular genes of interest before selecting embryos to put in the mother’s womb. If the genes that cause the couple’s deafness can be identified, PGD could grant them the child they want.
But not in Britain. The law governing fertility treatment is now being updated in a bill before Parliament, and using PGD to pick embryos with faulty genes in preference to those without them is to become illegal. Since deafness is generally considered a defect—a proposition the couple lambast as discriminatory “audism”—Mr Lichy and Ms Garfield would have to take their chances with normal conception or IVF, or else screen and discard the very embryos they prefer. more…
From: »The Economist«


