Sentences with phrase «stage in embryonic development»

In a developing embryo PGC's can be isolated from the germinal crescent, a region in the early stage embryo where the cells form, or from the gonads at a later stage in embryonic development.

In a developing embryo PGC's can be isolated from the germinal crescent, a region in the early stage embryo where the cells form, or from the gonads at a later stage in embryonic development.

OAR produces a crippled embryo» one whose cells can divide and differentiate to a certain stage in embryonic development and no further.

Taking into account that ES cells are isolated at embryonic day 3.5 post fertilization, the sequential appearance of genes specific for gastrulation, mesoderm formation, hemopoiesis, cardiopoiesis and neurogenesis during ES cell differentiation follows the timing of comparable developmental stages in embryonic development.

Not exact matches

But the great and encouraging consequence of this breakthrough is that the humanity of the unborn child, even at the earliest embryonic stage of development, is now a subject of polite conversation even in the circles that so fanatically resisted acknowledging the facts of life.

Nanog appears in both the morula (12 - cell stage) and in high concentration at an advanced stage of normal embryonic development, the blastocyst (150 - cell stage).

Because the possibility of «twinning» exists for that long in the first stages of embryonic development, one could argue that no individual human being can yet be present - and that, hence, experimentation should be permitted.

The idea of development seems to have come from biology, where it is used in reference to the process of evolution from a previous and lower (e.g., embryonic) stage to a later, more complex or more perfect one; this development can involve differentiation into individual organisms and their subsequent histories.

In the initial stages of the research project, Yaniv's team members Julian Nicenboim and Dr. Guy Malkinson obtained images of developing zebrafish embryos, whose transparent bodies make it possible to document embryonic development in real time over several dayIn the initial stages of the research project, Yaniv's team members Julian Nicenboim and Dr. Guy Malkinson obtained images of developing zebrafish embryos, whose transparent bodies make it possible to document embryonic development in real time over several dayin real time over several days.

To investigate whether maternally supplied gdf3 mRNA also plays a role in left - right patterning, the researchers used a series of experimental tricks to supply embryos with enough Gdf3 protein to form the mesoderm and endoderm and survive until the later stages of embryonic development.

Their Kupffer's vesicles were abnormally symmetric in shape, and southpaw expression was greatly reduced, suggesting that gdf3 is also required for optimal Nodal signaling during later stages of embryonic development.

This happens particularly often during the stage of embryonic development, but it can also occur in tumors when they form metastases.

Study shows memories formed by the same gene - silencing tool used in embryonic development; a finding could set the stage for new therapies for schizophrenia

«Indeed, when we studied the mice at the embryonic stage, we saw the cells between the muscle fibers expanded explosively and formed tumors early in development,» Hatley said.

Changes in cellular metabolites have been shown to regulate embryonic stem cell development at the earliest stages of life.

«Changes in metabolites can regulate earliest stages of development: Findings may offer insights into a variety of disorders, advance embryonic stem cell research.»

In unpublished work presented at the meeting, Barna and colleagues also found that certain ribosome varieties may be important at different stages of embryonic development.

Neurocutaneous disorders are caused by abnormal development of cells in the embryonic stage, leading to tumors in various parts of the body, including the skin, organs, bones, brain and spinal cord.

Because development often reprises stages of evolution, the growth of embryonic ears in tandem with the jaw is no accident: the sound - transmitting middle ear bones that are a distinguishing feature of mammals evolved from what used to be gill arches in fish and jawbones in reptiles.

Salk scientists and colleagues have proposed new molecular criteria for judging just how close any line of laboratory - generated stem cells comes to mimicking embryonic cells seen in the very earliest stages of human development, known as naïve stem cells.

The fossils preserve stages of embryonic development frozen in time by miraculous processes of fossilisation, which turned their squishy cells into stone.

Nephron progenitor cells (NPCs), at least in humans, normally only exist during a brief stage of embryonic development.

The next step, he says, is to investigate how embryonic mouse brains with induced folds develop as they mature past the fetal stages of development and to look across species to see if the gene has similar effects in other mammals.

The researchers used this live - imaging technique to study fly embryos at a key stage in their development, approximately two hours after the onset of embryonic life where the genes undergo fast and furious transcription for about one hour.

(H) The lipid containing structures progressively diminish in size in mutant embryos during later stages of embryonic development (arrowhead).

The gene, known as gata5, acts in embryonic cells, which are primordial, unspecialized cells that form in the earliest stage of embryonic development and are genetically programmed to evolve into one of many specialized cell types, such as skeletal muscle cells, nerve cells, blood cells, skin cells, and liver cells.

They discovered that extra chromosome 21 - a genetic state known as trisomy 21 - disturbs a key regulating gene called NRSF or REST, which in turn disturbs the cascade of other genes that control normal development at the embryonic stem cell stage.

In the future, these cells could be molecularly manipulated to better grasp their interactions and the early embryonic development stages, hypothesizes Dr. Christos Coutifaris, president - elect of the American Society for Reproductive Medicine and a professor at the University of Pennsylvania.

These images show human embryonic stem cell colonies, as grown in 1998 by researchers at the University of Wisconsin — Madison, in different stages of development.

This intra-species comparison between development and regeneration will provide novel insights into the plastic nature of the morphogenetic trajectories that lead to organ formation in both embryonic and adult stages.

In fact, this system resembles the initial stages of morphogenesis — the biological process that governs the emergence of the body plan in embryonic developmenIn fact, this system resembles the initial stages of morphogenesis — the biological process that governs the emergence of the body plan in embryonic developmenin embryonic development.

These genes have been also implicated in the gastrulation phase of embryogenesis [55] indicating that «Time Series» clusters provide a comprehensive collection of genes expressed at specific stages of ES cell differentiation and early embryonic development.

A living plant continues to have embryonic tissues even in advanced stages of development.

There is no prohibition against third party funding of disputes in the United Arab Emirates (UAE) or the wider Middle East although its development is still in its embryonic stage.