Sentences with phrase «in the embryonic development of»

«For example, in the embryonic development of plant cells.

5/15/2008 New Role Found for a Cardiac Progenitor Population In a discovery that could one day lead to an understanding of how to regenerate damaged heart tissue, researchers at the University of California, San Diego have found that parent cells involved in embryonic development of the epicardium — the cell l...

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).

When cloning is successful, the adult nucleus is stripped of its epigenetic programming, and is restored to a totipotent state that can use all the genetic information present in the nucleus to orchestrate the complete program of embryonic development.

As specialized cells are generated during embryonic development, they are programmed to use only a limited amount of the total genetic information present in the nucleus to produce the proteins required for their particular function.

Embryonic cells are pluripotent, having the full genetic code enabling them to become any type of cell; they differentiate into particular cells in their later development.

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.

It is possible that in embryonic development similar sorts of ordering are at least initiated by chemical gradients (see LEC).

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.

«BPA and BPS (substitute for BPA) affect embryonic brain development in zebrafish: Low levels of chemicals linked to hyperactivity.»

From such work, we've learned that many of the genes deployed in the developing phallus are also used to build limbs during embryonic development.

The decision whether the maternal or the paternal version is shut down occurs early in embryonic development — one reason, why for long it was thought that the pattern of active alleles is nearly homogeneous in the various tissues of the organism.

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.

Now, a collaborative team of scientists at Washington University in St. Louis has developed a new process to generate NP - like cells from hiPSCs, one that truly goes back to the beginning and mimics the process of embryonic development.

Rao, who works at Washington University School of Medicine, tracked eye development in embryonic frogs of the genus Xenopus.

The researchers discovered that both major living lineages of birds (the common neognaths and the rarer paleognaths) differ from the major lineages of non-bird reptiles (crocodiles, turtles, and lizards) and from mammals in having a unique, median gene expression zone of two different facial development genes early in embryonic development.

The latest findings show that genetic defects in the body's ability to manufacture carnitine might be associated with an increased risk of autism because carnitine deficiency interferes with the normal processes by which neural stem cells promote and organize embryonic and fetal brain development.

To get more cells, researchers from Advanced Cell Technology in Worcester, Mass., grew clusters of human embryonic cells in a precise cocktail of growth factors and other cell - regulating chemicals that took several years to work out, says Robert Lanza, the firm's vice president of research and scientific development.

In experiments on zebrafish, Freiburg researchers have demonstrated that the same proteins that lead to the formation of metastases in humans also cause the cells to migrate during embryonic developmenIn experiments on zebrafish, Freiburg researchers have demonstrated that the same proteins that lead to the formation of metastases in humans also cause the cells to migrate during embryonic developmenin humans also cause the cells to migrate during embryonic development.

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.

In the United Kingdom, research on embryonic stem cells is legal in the first 2 weeks of their developmenIn the United Kingdom, research on embryonic stem cells is legal in the first 2 weeks of their developmenin the first 2 weeks of their development.

In the absence of gdf3, Ndr1 and Ndr2 signaling is dramatically reduced and embryonic development goes awry.

«Furthermore, results of our study highlight the importance of including moisture conditions when predicting embryo growth and sex ratios and in developing proxies 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.

Scientists have focused for decades on the role of biochemical cues in embryonic development, Campàs said, because no techniques existed to measure the mechanical cues that cells are exposed to during the formation of tissues and organs.

For years, Scripps neuroscientist Jerold Chun had been studying the embryonic brain and how certain lipids in the blood of both the mother and the embryo affect its development.

The ALK gene is important during embryonic development of the nervous system but should be inactive later in life.

Heller's team produced the inner - ear hair cells by exposing embryonic cells in the lab to chemical factors which steer the natural development of hair cells.

EMT is crucial for normal embryonic development, but also operates in wound healing, and when abnormally switched on, can enable the spread of tumor cells.

The laboratory process, described in the journal Scientific Reports, entails genetically modifying a line of human embryonic stem cells to become fluorescent upon their differentiation to retinal ganglion cells, and then using that cell line for development of new differentiation methods and characterization of the resulting cells.

However, the role of Sp7 in embryonic tooth development was unknown.

Further investigation, says Resar, showed that these unusual properties arise from the ability of HMGA1 to turn on several genes involved in the Wnt pathway, a network of proteins necessary for embryonic development and stem cell activity.

They were interested in one of the cell's key signaling pathways, the MAPK pathway, which helps control cell growth, embryonic development, and the maturation of oocytes into eggs.

Early in embryonic development, both mouse and human placentas rely on the same set of ancient cell - growth genes.

In 2014, UCSF's Nathan Young and Ralph Marcucio, working with Schneider, carried out extensive skull measurements on a variety of embryonic vertebrates and determined the point during development at which the bird face begins to diverge from those of other vertebrates.

Facial asymmetries and minor physical anomalies begin to appear early in embryonic development, mainly the first trimester of pregnancy, and can be a sign of instability during this growth.

«In addition to advancing our understanding of human embryonic development, the findings suggest we may be able to use metabolites, relatively simple compounds, to alter cell fate in the treatment of common disorders.&raquIn addition to advancing our understanding of human embryonic development, the findings suggest we may be able to use metabolites, relatively simple compounds, to alter cell fate in the treatment of common disorders.&raquin the treatment of common disorders.»

Using a nuclear protein expressed in follicle stem cells (FSCs), the researchers found that castor, which plays an important role in specifying which types of brain cells are produced during embryonic development, also helps maintain FSCs throughout the life of the animal.

According to a report published online today by the journal Nature, mutations in genes that guide embryonic development allowed insects to develop a radically different body plan from that of their crustacean - like ancestors some 400 million years ago.

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

These include a family of signaling molecules called protocaderins, which regulate neuronal development and short - range interactions between neurons, and a family of transcription factors called zinc fingers, which are mainly expressed in embryonic and nervous tissues and are thought to play roles in brain development.

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

Mouse embryonic stem cells, reported in 1981 by Martin Evans, Matthew Kaufman, and Gail Martin, have allowed scientists to generate genetically customized strains of mice that have revolutionized studies of organismic development and immunity and have provided countless models of human disease.

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.

But the new research suggests that these symptoms may be a late manifestation of a disease that originates much earlier, in the first steps 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.

«Observing the changes in the architecture of islets during embryonic development in mice and in pseudoislets — a model we generated in our lab — was also very interesting.

Experts say the new method, reported in the current issue of Cell, could also be a useful tool for studying embryonic development.