Researchers have identified the first gene linked to the productivity of the stem cells that produce sperm in mammals. The discovery was made by applying the latest laboratory methods to a strain of mice restored from embryos frozen since the early 70s. The findings, which could someday have implications for infertility, contraception, and stem cell transplantation therapy, will be published in the June issue of Nature Genetics.
What researchers are trying to do is unravel the mystery of the adult germ stem cells in male testicles, which are capable of producing an average of 1,500 sperm during every human heartbeat – or an average of 130 million sperm a day.
"The average man will maintain a high level of sperm production from puberty onward, for decade after decade. To maintain that high a sperm output, you need many functioning stem cells. But the stem cells have to walk a tightrope and carefully balance the decision to become a sperm with the decision to stay a stem cell, so that the sperm output is maintained for all of these years," said Dr. Robert Braun, associate professor of genome sciences in the University of Washington School of Medicine.
Walter Neary | EurekAlert!
‘Farming’ bacteria to boost growth in the oceans
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Calcium Induces Chronic Lung Infections
24.10.2016 | Universität Basel
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
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COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
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14.10.2016 | Event News
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24.10.2016 | Physics and Astronomy