Link between sperm development and testicular cancer

Testicular cancer could be linked to faulty sperm development leftover from defective cells as an embryo, according to a study published in the journal Development. Testicular cancer is the most common cancer that affects men between the ages of 15 and 49. In most cases, the tumours develop from testicular germ cells, which become sperm. … Continue reading Link between sperm development and testicular cancer

Is this how human sperm really move?

We know what human sperm do, but it seems we may be wrong about one aspect of how they do it. Research by fertility scientists in the UK and Mexico challenges the accepted view of how sperm “swim”, suggesting that it is an optical illusion. More than three centuries ago, Antonie van Leeuwenhoek, using one … Continue reading Is this how human sperm really move?

Semi-identical twins identified in pregnancy

Young Queensland twins, a boy and a girl, have been identified as only the second set of semi-identical twins in the world – and the first to be identified by doctors during pregnancy. The twins, who are identical on their mother’s side but share only part of their father’s DNA, are the first case of … Continue reading Semi-identical twins identified in pregnancy