Medical research

Scientists map molecular interactions at point of conception

Researchers at the University of Toronto have uncovered the first interactions between the human sperm and egg—the initial steps in the creation of human life. The discovery lays a foundation to better understand fertilization ...

Medical research

Milestone reached on path to new form of male contraception

Researchers studying strategies to develop a non-hormonal approach to male contraception have reached an important milestone in their work, discovering a way to produce a key enzyme found only in sperm in sufficient quantities ...

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 ...

Genetics

Timebomb in the testicles investigated

Oxford scientists have for the first time been able to identify the origins of some severe disease-causing mutations within the testicles of healthy men. This discovery will help our understanding of how certain serious genetic ...

Genetics

Sperm carries information about dad's weight

Turns out dads are also eating for two. A study published December 3 in Cell Metabolism reveals that a man's weight affects the heritable information contained in sperm. The sperm cells of lean and obese men possess different ...

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