Embryo News and Research

RSS

Study finds two genes that are essential for the proper development of muscle

Scientists at the University of North Carolina at Chapel Hill have found two genes that are essential for the proper development of muscle.

30 Dec 2005

Gene discovery may prevent craniofacial birth defects

Craniofacial researchers have developed an animal model that explains how skull malformations occur and how they might be prevented.

22 Dec 2005

Remarkable developmental pathway in frog embryos discovered

Howard Hughes Medical Institute researchers have discovered an important regulatory pathway that enables frog embryos to develop normally even after being split in half -- as happens in the development of identical twins.

15 Dec 2005

SPARC promotes heart muscle formation from stem cells

The protein SPARC plays a key role in the development of heart muscle in the embryo. An Austrian Science Fund FWF project has discovered this previously unknown role of SPARC.

12 Dec 2005

South Korean cloning pioneer responds to accusations

South Korean cloning pioneer Hwang Woo-suk has defended himself in the media following allegations over ethics violations that have seen his groundbreaking work plunged into controversy.

24 Nov 2005

Desperate patients cause stem cell web site to crash

The web site of South Korea's new stem cell bank has crashed even before it began taking applications to take part in research.

2 Nov 2005

Analytical method to trace the lineage trees of cells

Some fundamental outstanding questions in science - "Where do stem cells originate?" "How does cancer develop?" "When do cell types split off from each other in the embryo?" - might be answered if scientists had a way to map the history of the body's cells going back to the fertilized egg.

30 Oct 2005

Scientists have identified the gene which explains why eggs fail to produce a zygote

Scientists have identified the gene responsible for controlling a first key step in the creation of new life, according to new research published in the journal Nature.

27 Oct 2005

Scientists find key step in a signaling pathway that helps orchestrate embryonic development

The study, reported in Nature (Oct. 13, 2005), focuses on the Hedgehog family of signaling molecules, which play a central role in directing development of the early embryo's growth and spatial plan, as well as its later organ and limb development. Defects in Hedgehog signaling are a significant cause of some birth defects and cancers.

25 Oct 2005

Blocking a signaling lipid can keep nerves from developing and may even cause neurons to die

Blocking a signaling lipid can keep nerves from developing the arm-like extensions they need to wire the body and may even cause neurons to die, researchers have found.

24 Oct 2005

Screening test would give hope to childless couples

According to new research thousands of childless British couples could greatly improve their chances of having a baby if a test that weeds out faulty embryos were carried out.

20 Oct 2005

Study of the molecular mechanism involved in the human implantation process

In spite of advances in assisted reproductive technologies, more than 6.1 million women in the United States - roughly 20 percent of all women of reproductive age - suffer from infertility.

17 Oct 2005

Alternative methods to create stem cells successful in mice-studies

According to researchers in the U.S. two alternative methods for making embryonic stem cells, work in mice and could lead to a less controversial way to grow them.

16 Oct 2005

New public survey on stem cells

Stem cells are unique among human cells in that they possess the uncanny ability to develop into virtually any other cell of the body, offering a hypothetical tool kit for repairing diseased hearts, mending broken spinal cords, or correcting genetic diseases, among other hoped-for benefits.

13 Oct 2005

High blood glucose levels early in pregnancy deprive the embryo of oxygen

The babies of women with diabetes are two to five times more likely to develop birth defects than offspring of women without the disease.

4 Oct 2005

Israeli scientists successfully transplant ovaries in sheep and trigger early embryonic development

Israeli scientists report in Human Reproduction that they have successfully transplanted whole frozen and thawed ovaries in sheep, retrieved oocytes from these ovaries and triggered them in the laboratory into early embryonic development.

26 Sep 2005

85 percent of embryos transferred during in vitro fertilization fail to become live births

Published in the August issue of Fertility and Sterility, the study reviewed seven years of U.S. statistics from all the fertility clinics that report data on reproductive techniques.

20 Sep 2005

Methoxychlor (MXC), a common insect pesticide may lead to reduced fertility in women

Methoxychlor (MXC), a common insect pesticide used on food crops, may interfere with proper development and function of the reproductive tract, leading to reduced fertility in women, researchers at Yale School of Medicine write in the August issue of Endocrinology.

19 Sep 2005

It's pure science fiction! - human embryo to be created from two mothers

Scientists in Britain have been given permission to create a human embryo that will have genetic material from two mothers.

10 Sep 2005

Methoxychlor (MXC) may interfere with proper development and function of the reproductive tract, leading to reduced fertility in women

The researchers found that MXC, which was manufactured as a safer replacement for the now-banned DDT, alters the estrogen-regulated gene Hoxa10 in the reproductive tract and reduces the ability of the uterus to support embryo implantation. The researchers used mice and then human cell lines to confirm their findings.

7 Sep 2005