Medical research

Infertility mechanism in males identified

Large doses of a sperm protein that is ineffective in infertile males can be injected directly into eggs to kick-start fertilization, giving couples hope of conceiving.

Medical research

Male infertility research reveals how a new life begins

Research into a genetic mutation causing some men to be infertile shows that an important protein in the sperm that is a key component of the egg fertilization process, known as phospholipase C zeta (PLC-zeta), is ineffective ...

Medical research

Mammalian fertilization, caught on tape

The development of every animal in the history of the world began with a simple step: the fusion of a spermatozoon (the male gamete) with an oocyte, or egg (the female gamete). Despite the ubiquity of this process, the actual ...

Medical research

Bone hormone influences brain development and cognition

Researchers from Columbia University Medical Center (CUMC) have found that the skeleton, acting through the bone-derived hormone osteocalcin, exerts a powerful influence on prenatal brain development and cognitive functions ...

Medical research

'Kick-starting' male fertility

Adding a missing protein to infertile human sperm can 'kick-start' its ability to fertilise an egg and dramatically increase the chances of a successful pregnancy, a team of Cardiff University scientists have uncovered.

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