A UNISEX contraceptive which lets couples take joint responsibility for birth
control may be on the horizon.
Starving sperm of calcium turns them into lazy swimmers that are too sluggish
to break into an egg, researchers have found. They hope that a calcium-blocking
drug could one day be taken by both men and women as a hormone-free alternative
to the Pill.
David Clapham and his team at the Harvard Medical School in Boston were
looking for genes that control the flow of calcium ions in mouse cells. By
chance, they stumbled on one that is only expressed in the testes.…
