Sentences with phrase «switch genes off»

These alterations can change genetic expression, or even switch genes off, and may be part of the explanation of how maltreatment affects the developing brain.

Methylation normally switches genes off, and de-methylation turns them on.

Blewitt said the gene Smchd1 — or «Smooch» as she calls it — encodes an epigenetic factor that switched genes off to suppress their function.

That changes the shape of the mRNA and switches a gene off, or occasionally on.

Mutations in these regions garble the whole gene sequence, effectively switching the gene off.

Not exact matches

Another process called epigenetics that switches genes on and off may explain why ho - mose - xuality runs in families.

Rice and his colleagues focused on epi - marks, which are molecular changes that act like temporary «switches» to turn genes on and off.

Our gee show that micro changes in our epigenetics can turn on and off genes or have them exhibit themselves in different ways and with enough flipping of the micro switches you can get some pretty impressive macro changes in relatively short periods of time.

As differentiation continues, various genes are «switched off» but stem cells, even in adults, retain a certain pluripotency in order to produce fully differentiated cells lost by damage or ageing.

Davies and Lineweaver suggest that genes active in embryogenesis and switched off later may be reactivated because of damage, causing the accelerated cell division of these rogue cancer cells.

Apparently broccoli contains potent nutrients which have the ability to switch «on» genes that prevent cancer development, and switch «off» other ones that help it spread.

They discovered an orchestrated switching on and off of various genes as the mammary gland transitions from secreting small amounts of immunity - boosting colostrum in the first days after giving birth to the copious production of milk in mature lactation.

«Cancer cells disguise themselves by switching off genes, new research reveals: A genome - wide map of the genes switched off in aggressive tumors reveals a «signature».»

They analyzed the results to identify where the DNA had decorations called methylation — molecules attached that switch the gene on or off.

It is believed to have an epigenetic function, regulating other genes by switching them off when necessary.

The tag H3K27me3 (shown in green), can switch gene activity off.

Epigenetic tags help tell genes — stretches of DNA that act as biological instruction manuals — when to switch «on» and «off,» ultimately determining cell type and function.

In a study published in Neoplasia, researchers at the Washington University School of Medicine created a map showing which genes were switched on and off in different parts of the tumor, providing a «signature» of these switches throughout the genome.

Nathaniel Hoyle of the MRC Laboratory of Molecular Biology in Cambridge, UK, and his colleagues have discovered that genes in a type of skin cell switch on and off during day - night cycles.

«Regulatory RNA modules are attractive for applications in synthetic biology, because they detect signals from the environment directly and instantly switch the subsequent genes on or off,» explains Johanna Roßmanith.

Tsai's group manipulated the gene for the protein p25, which has been implicated in several neurodegenerative diseases, so that it could be easily switched on and off.

Within individual SCN cells, specialized clock genes are switched on and off by the proteins they encode in a feedback loop that has a 24 - hour rhythm.

This action can result in the activation of genes that had been switched off, and could be the cause of the recovery of synaptic strength.

This gene makes a protein called LAG3, which switches off the body's inflammation response.

Biologists are studying whether genes could be switched on and off in plants depending on climatic conditions

These epigenetic switches and markers in turn help switch on or off the expression of particular genes.

But after months of painstaking research they had at last succeeded in switching off the gene and getting rid of the glow.

CBX2 has aroused interest as a possible master switch for maleness because tests in human cells suggest that mutations in it can shut off a gene on the Y chromosome critical for male sexual development.

HEALTHY muscle cells exposed to fat can become like cells taken from people with diabetes, with the genes that control fat - burning permanently switched off.

Nadeau has discovered that in the Fresno children, long - term exposure to air pollution and secondhand smoke switched off two specific genes.

They noted that Tregs generally had high levels of a protein called Helios, a transcription factor that helps switch genes on and off.

«By switching certain genes on and off, prions could help bacteria survive environmental stresses rendering them less vulnerable to drugs, chemicals and other environmental assaults,» says investigator Ann Hochschild, professor of microbiology and immunobiology at HMS.

The system has the potential to add, change or switch off thousands of genes at a time — Church calls this «multiplexing» — and it can generate billions of new strains in days.

Nadeau stumbled upon one study, in mice, describing how environmental factors can tag Foxp3 with chemical markers that tell T - cell precursors to switch the gene on or off.

To determine the effect of mutations that reduce TET2 function in abnormal stem cells, the research team genetically engineered mice such that the scientists could switch the TET2 gene on or off.

The methyl groups that switch genes on and off are not made by the body, instead we get them by eating foods rich in nutrients such as choline and folate, which are found in raw liver and cruciferous vegetables like cabbage and broccoli.

Affected family members, the group found, had inherited one or two defective copies of ZIC3, a previously unknown gene that appears to code for a transcription factor — a protein that switches other genes on or off.

The discovery that a cavefish might have lost its sight because key eye genes were switched off via epigenetics, rather than mutation, will fuel an evolutionary debate

Instead, the genes have been switched off by the addition of chemical tags called methyl groups.

This test determined that only a few genes switched off when signaling was blocked — and one of them was the gene known to code for MHCI.

We now have the first direct evidence that switching off certain genes — something that can be caused by our lifestyle or environment — can trigger tumours, without mutating the DNA itself.

The genes «work like an on / off switch,» Deisseroth says.

All cells contain the same DNA, but individual genes in any cell can be switched on or off by the addition or subtraction of a methyl group — a carbon atom bound to three hydrogen atoms.

As we grow older, some genes are switched on, while others are switched off.

In these animals, they switched off the gene responsible for producing the enzyme arylsulfatase G.

This technique was inspired by evidence that cancers grow like embryos do, re-awakening many genes vital for rapid growth during pregnancy that had been switched off after birth.

«Switching off a gene is of course feasible, the issue is whether it will have the desired effect and whether it's the right thing to do... But in terms of trying to develop a therapy to delay or prevent hair graying, that is something that is potentially feasible; yes.»

The two genes implicated — GNAQ and GNA11 — code for proteins (known as G proteins) that normally function as molecular on - off switches, regulating the passage of information from the outside to the inside of a cell.

Previous studies of genetic alterations in lymphoma and lung cancer have found that certain genetic mutations — specifically when part of a gene breaks off and gets fused to another — can inappropriately switch on ALK, driving cancer cells to grow and divide.

The proposed strategy reflects a continuing move toward combination therapies, particularly when it comes to epigenetic approaches, which target the mechanisms that control whether genes are switched «on» or «off.»