Sentences with phrase «occurs in a different cell»

The number of receptors for the neurotransmitter in the brain amounts to 14, occurring in different cell types.

On the other hand, if the same mutation occurs in a different cell population located farther away from the SVZ, it will give rise to other subtypes,» said Chen.

The results, although still preliminary in a quantitative sense, demonstrate that the reactivation of methylation - silenced genes does occur in different cell lines, suggesting it is a general phenomenon.

Not exact matches

«We found that the syncytiotrophoblasts formed in our system recapitulated the barrier properties of the naturally occurring cells and they resisted infection by a model virus and three genetically different strains of Toxoplasma,» said co-investigator Jon P. Boyle, Ph.D., associate professor of biological sciences at Pitt.

Plath's team found that the changes that happen in cells during reprogramming occur in a sequential stage - by - stage manner, and that importantly, the stages were the same across all the different reprogramming systems and different cell types analyzed.

Sometimes, a phenomenon known as «alternative polyadenylation» occurs in cells, through which these tails are added to different positions on mRNAs, thereby influencing their functions.

Gladfelter has previously demonstrated in fungus that it's critical that the cell undergo a liquid - liquid phase separation in order for two different biological process to occur.

To understand how these multi-colored lesions originated they examined blood from these mice and found that tumor cells in circulation frequently occurred as clusters comprised of different colored cancer cells.

The study involved extracting Ribonucleic acid or RNA — found in the cells of all living organisms — to develop a transcriptome — the gene readouts in a cell — to examine what occurs during the different developmental stages of the cockroach pregnancy and to explore if those changes hold wider applications for other mammals.

«This is because while both cell types show hydroxyurea - induced gene expression, collision with replication occurs differentially because replication forks have progressed to different extent in these cells,» said Feng.

The authors note that there are two different models of metastasis — one in which an advanced primary tumor disseminates metastatic cells late in its development, which would predict little genetic difference between primary and metastatic cells, and another in which metastasis occurs early in tumor development, which would predict significant genetic differences in metastatic cells that have evolved separately from those in the primary tumor.

The finding that normal fertilization can result in embryos containing cells with different parental sets of chromosomes is a new mechanism for chimerism, which was previously thought to occur only as the result of fertilization errors, for example, the fusion of multiple sperm or eggs to form an embryo.

Both processes enable the cell to produce energy, but in different ways; respiration yields more energy overall, but fermentation can occur even when oxygen is completely absent.

«This is the first time that we have been able to actually look at how the components of a bacterial cell membrane are able to interact with different substances, and understand how differences in metal and mineral interactions can occur on the surface of a cell.

Cancer occurs when a single cell behaves in a different way due to a mutation in its DNA.

Their research found that a variety of naturally - occurring mutations in the DNA cells can initiate different sequences of mutations that eventually lead to breast cancer.

Alterations accomplished using CRISPR, which enables scientists to edit a cell's DNA with unprecedented precision, are different in one crucial respect: The process can result in «gene drive,» a naturally occurring feature of some genes that enables them to spread through a population over generations, even if they do not help survival (and thus reproduction).

The mass die - off of nerve cells in the brains of people with Alzheimer's disease may largely occur because an entirely different class of brain cells, called microglia, begin to fall down on the job, according to a new study by researchers at the Stanford University School of Medicine.

He is also interested in understanding the transcriptional regulation of lineage choice between different stem cell populations that occurs in the blastocyst.

While many different types of cancer can occur in the head and neck, squamous cell carcinoma in the most common cancer of the head and neck.

The co-incidence of these 2 pathologies occurs also in humans suggesting a common pathological mechanism moving across the gut - joint axis, with TNF signals acting on specific cell types directing pathogenesis at two different locations.

According to the grant's description, «the communication required to establish the symbiosis between two widely different species occurs between cell layers in tissues, between organs in the plant, and across a time span from hours to days.»

A. Melanoma is a cancer of pigment cells and all melanomas share some characteristics but they also differ: the genetic changes which define cancers occur in the cancer cells at random and cancers are all therefore a little different.

Some studies have identified a number of regions of methylated DNA (one key way in which epigenetic changes occur) that are different in fat cells of mice fed high - fat diets than in cells of mice with normal diets.

Each of these various kinds of abnormal cells occur in different tissues, and the problems they cause are distinct from one another.

Understanding the conditions that cause these cells to go off to different fates may have a bearing on health problems such as ectopic pregnancy, which occurs when the embryo develops outside of the womb in about 1 of 60 pregnancies, or molar pregnancy, which is abnormal tissue growth within the uterus that affects about 1 in every 1,000 pregnancies.

As cells divide and differentiate, changes in transcriptional profile occur, leading to considerable phenotypical diversities forming different subpopulation of cells and tissues in living organisms.

It is important to distinguish lineage specific gene expression shown here, which occurs at a high level and with a degree of specificity in the different population compartments, to the low level of genome wide transcription observed in ES cells by others [22], or with transcript initiation at many loci noted previously in ES cells [23].

The Yale team found more than 580 different genes that may play a role in regeneration of axons in nerve cells, something that rarely occurs in adult mammals but is of vital interest to scientists hoping to repair injuries to the central nervous system.

With the artificial cell system, according to Bar - Ziv, one can, in principle, encode anything: «Genes are like Lego in which you can mix and match various components to produce different outcomes; you can take a regulatory element from E. coli that naturally controls gene X, and produce a known protein; or you can take the same regulatory element but connect it to gene Y instead to get different functions that do not naturally occur in nature.»

As this process — known to neuroscientists as Hebbian learning — occurs in multiple neighboring cells, it creates webs of connections between different neurons, encoding and linking information.

But, that's different than «the delayed onset muscle soreness» that occurs in the days following a bout of extreme physical activity — which is thought to be due to inflammation caused by muscle cell damage, little micro-tears in the muscle.

Allinase is found in different cells to alliin, cleanly separated by the cell walls, so the reaction occurs immediately after slicing the root with a knife.

The investigators, then, had to incubate the naive cells not only with egg white protein and different amounts and combinations of activated vitamins, but also with a biochemical cocktail to mimic the environment that would occur within the body during a time of distress and that would convince these cells to commit to enlisting in the Th17 brigade.

In the latter case, the problem occurs due to the different cells in a battery having slightly different capacitieIn the latter case, the problem occurs due to the different cells in a battery having slightly different capacitiein a battery having slightly different capacities.