Latest Chimera Stories
A team of reproductive scientists have successfully produced both male and female mice using two different fathers.
Kinarm Ko and Hans SchÃ¶ler's team at the Max Planck Institute for Molecular Biomedicine in MÃ¼nster have succeeded for the first time in culturing a clearly defined cell type from the testis of adult mice and converting these cells into pluripotent stem cells without introduced genes.
Researchers have what they think may be a basic recipe for capturing and maintaining indefinitely the most fundamental of embryonic stem cells from essentially any mammal, including cows, pigs and even humans. Two new studies reported in the December 26th issue of the journal Cell, a Cell Press publication, show that a cocktail first demonstrated to work in mice earlier this year, which includes inhibitory chemicals, also can be used to successfully isolate embryonic stem cells from...
Researchers claim they developed a safer way to make powerful stem cells from ordinary skin cells, improving research focused on so-called regenerative medicine.
In England, at Newcastle University, a team has grown hybrid human-cow embryos for the first time in order to provide research tools for stem-cell based solutions. The embryos were produced after human DNA was injected into eggs from cowsâ€™ ovaries.
Britainâ€™s Human Fertilization and Embryology Authority (HFEA) gave initial approval to scientists to create human-animal embryos for research. The research will mean the production of human embryos with traces of animal DNA.
Researchers at the University of Southern Maine have identified a "starter hormone" responsible for initiating the process by which caterpillars transform themselves into moths.
Actor Michael J. Fox, a Parkinson's disease sufferer, urged President Bush on Wednesday to drop his opposition to expanded embryonic stem cell research as Congress geared up for a pivotal vote for more government spending on the research.
WASHINGTON (Reuters) - Supporters and opponents of human-embryo research wielded politics and science on Tuesday in last-minute battles to push some kind of stem cell legislation through the Senate.
WASHINGTON (Reuters) - A Senate health panel on Wednesdayapproved a bill that would establish a national network toexpand access to umbilical cord blood for research, one ofseveral bills on bioethical issues likely to be debated nextmonth in the fight over embryonic stem cell research.
A Knockout Mouse is a genetically engineered mouse in which researchers have inactivated, or “knocked out,” an existing gene by replacing it or disrupting it with an artificial piece of DNA. The loss of gene activity frequently causes changes in a mouse’s phenotype, which includes appearance, behavior, or other apparent and biochemical characteristics. Knockout mice are significant animal models for studying the role of genes which have been sequenced but whose functions haven’t...
Pegasus (the winged horse) Constellation -- Location: Visible in both Hemispheres Coordinates: Right Ascension: 22h; Declination: +20; Source: Greek mythology Pegasus, the winged horse, was the son of Poseidon and Medusa. Medusa had been one of three beautiful sisters. Athena was angered that Medusa met with Poseidon in one of her temples. She changed Medusa into a terrible monster. Zeus kept Pegasus out of the world to placate Athena. Pegasus (and the warrior Chrysaor) sprang from...
- Withering but not falling off, as a blossom that persists on a twig after flowering.