A team of scientists in Sweden has broken open the genetic recipe for a human embryo's first three days of development, chronicling what happens in the crucial hours that follow the union of egg and sperm.
Biotechnology
Sep 4, 2015
25
69
Stem cells are key for the continual renewal of tissues in our bodies. As such, manipulating stem cells also holds much promise for biomedicine if their regenerative capacity can be harnessed. However, understanding how stem ...
Cell & Microbiology
Jul 15, 2015
0
24
(Phys.org)—A small team of researchers with members from institutions in Sweden, Argentina and Italy, has discovered fossilized sperm cells embedded in the walls of an ancient cocoon. In their paper published in the journal ...
Researchers in Japan have found, for the first time in vertebrates, a genetic switch that determines whether germ cells become sperm or eggs. The gene is named foxl3, and has been identified using a small fish called medaka ...
Plants & Animals
Jun 11, 2015
1
99
Continually producing sperm over a long time is important to procreate the next generation. Researchers of the National Institute for Basic Biology, National Institutes of Natural Sciences in Japan, Ms. Kanako Ikami and Prof. ...
Cell & Microbiology
May 1, 2015
0
15
For in vitro fertilization and other assisted reproductive technologies, selecting the healthiest and best swimming sperm from a sample of semen can dramatically increase success. Microfluidics—micro-scale technologies ...
Biotechnology
Mar 19, 2015
0
9
Scientists from Berlin successfully produced embryos from African lions via assisted reproduction. What is genuinely new is the fact that they used immature eggs that were retrieved from African lionesses. After artificial ...
Plants & Animals
Feb 9, 2015
0
44
Expensive tests for measuring everything from sperm motility to cancer diagnosis have just been made hundreds of thousands of dollars cheaper by a PhD student from Brunel University London who hacked his own microscope.
Engineering
Nov 25, 2014
1
0
New research in flies shows how cells in adult reproductive organs maintain their sexual identity. The study, publishing online on November 13 in the Cell Press journal Developmental Cell, also identified a mutation that ...
Cell & Microbiology
Nov 13, 2014
0
0
Why do male animals need millions of sperms every day in order to reproduce? And why are there two sexes anyway? These and related questions are the topic of the latest issue of the research journal Molecular Human Reproduction ...
Plants & Animals
Oct 17, 2014
0
0
