Single molecule puts sperm on track

Sperm start their sprint to the ovum when they detect changes in the environment through a series of calcium channels arranged like racing stripes on their tails. A team of Yale researchers has identified a key molecule that ...

Turning off HSF5 gene leads to less and poorer quality sperm

In research on zebrafish, Örebro researchers have identified a gene that is essential for producing sperm. Results show that fewer and poorer quality sperm are produced when the gene was turned off with the Crispr/Cas9 technique. ...

Key protein in sperm tail assembly identified

A study published in the Journal of Cell Biology focuses on the development of the sperm tail, the structure that enables sperm cells to swim and is therefore critical for male fertility.

The mechanical properties of sperm tails revealed

Scientists at the University of York have shown that a sperm tail utilizes interconnected elastic springs to transmit mechanical information to distant parts of the tail, helping it to bend and ultimately swim toward an egg.

Researchers describe how sperm can lose their way

Sperm tails are actually complex propellant and navigational devices that help push them through fluids and navigate around complex terrain of the female oviduct. Now researchers at Yale and Harvard Universities have identified ...

Fast, efficient sperm tails inspire nanobiotechnology

Just like workers in a factory, enzymes can create a final product more efficiently if they are stuck together in one place and pass the raw material from enzyme to enzyme, assembly line-style. That's according to scientists ...

Mosquito sperm have 'sense of smell'

Vanderbilt biologists have discovered that mosquito sperm have a "sense of smell" and that some of same chemicals that the mosquito can smell cause the sperm to swim harder.

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