Embryology News and Research

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Embryology is the study of the development of an embryo. An embryo is defined as any organism in an early stage well before birth or hatching, or in plants, before germination occurs.

Scientists have determined the detailed structure of an essential piece of the telomerase enzyme

Scientists have determined the detailed structure of an essential piece of the telomerase enzyme, an important contributor to the vast majority of human cancers. Understanding the physical shape of the protein has led to a better understanding of how it acts to immortalize cells - and should help scientists design broadly effective cancer drugs.

5 Feb 2006

60 new genes controlled by regulatory sequences

Researchers worldwide are seeking to define ancient sections of our genetic code that may soon be as important to medical science as genes.

2 Feb 2006

Preimplantation cell number may affect birthweight

Dr Lieberman et al. at the Department of Obstetrics, Gynaecology and Reproductive Biology at the Brigham and Women's Hospital, Harvard Medical School in Boston, USA have measured the quality of human embryos by counting and assessing the properties of their individual cells.

2 Feb 2006

Counting cells that ensure gene balance

Two are one too many - this is the motto used by cells of a female organism: These contain two X chromosomes, one of which always becomes inactivated.

2 Feb 2006

Oocyte cryopreservation - allows women to freeze their eggs

Researchers at the Yale Fertility Center are now offering a cutting edge reproductive procedure called oocyte cryopreservation that allows women to freeze their eggs and use them at a later time to conceive a child.

27 Jan 2006

New research has implications for treating muscular dystrophy

In a surprising discovery with implications for treating muscular dystrophy, researchers at the University of Utah School of Medicine and other institutions have identified a major source of origin for two groups of adult cells that regulate muscle repair.

27 Jan 2006

First-of-its-kind study in heart attack patients seeks to prevent heart failure with stem cells

University of Rochester Medical Center researchers have announced the launch of a study that will examine whether transplanted stem cells can be safely used to treat damaged heart muscle in patients just after their first heart attack.

23 Jan 2006

Cloned stem cells are perfectly normal

Scientists generally agree that all cloned animals are biologically flawed. But they don't agree about what that means for stem cells derived from cloned embryos, the basis for therapeutic cloning.

18 Jan 2006

Missing protein C/EBPb may be cause of infertility

The absence of a key protein may lead to infertility. Researchers at the University of Illinois at Urbana-Champaign report that experiments involving mice -- to be detailed in the Proceedings of the National Academy of Sciences -- indicate that the transcription factor protein C/EBPb must be present in the uterus for pregnancy to occur.

18 Jan 2006

Tissue-specific RNAi reveals that WT1 expression in nurse cells controls germ cell survival and spermatogenesis

Researchers at The University of Texas M. D. Anderson Cancer Center say they have jumped a significant hurdle in the use of RNA interference (RNAi), believed by many to be the ultimate tool to both decode the function of individual genes in the human genome and to treat disease.

16 Jan 2006

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

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

Transport mechanisms for serotonin

Researchers at The Forsyth Institute have discovered that the transport mechanisms for serotonin - the chemical substance involved in transmitting signals between neurons, and which has a role in anxiety and mood disorders - play a key role in determining where organs are positioned in the body during embryonic development.

7 Dec 2005

Bacterial DNA and IVF contamination risk on New Scientist

Some children conceived by a common method of IVF could be carrying chunks of bacterial DNA in their chromosomes, according to a study in mice. The researchers who conducted the work say that such accidental genetic modification would be very rare, but they argue that fertility doctors should take more precautions to exclude it.

30 Nov 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

Number of men interested in donating sperm has declined significantly

A study by a leading UK fertility centre has found that the numbers of men - especially students - coming forward as potential sperm donors fell sharply after 2000, almost certainly due to growing awareness that changes in the law would be removing the right to anonymity.

13 Nov 2005