Sentences with phrase «signal cells when»

Like a band director's baton, those hormones signal cells when and how to perform.

Not exact matches

When a GPS signal is unavailable, geolocation apps can use information from cell towers to triangulate your approximate position, a method that isn't as accurate as GPS but is has greatly improveds in recent years.

Or if I am on - call for a client and need to briefly go somewhere there is no cell phone signal where they would temporarily for 1 - 2 hours not have access to me, I am sure to check in with my birth clients prior to ensure there have been no early signs of labor and inform them when I will be reachable again.

Because of this, I refrain from going to locations where I know I won't have cell phone signal when I am on - call for my clients, such as certain grocery stores, movie theaters, malls, etc..

When the breast is emptied, the body signals the cells that make milk to begin making more.

When you or your child comes in contact with egg proteins, immune system cells (antibodies) recognize them and signal the immune system to release histamine and other chemicals that cause allergic signs and symptoms.

When dosed with the drugs, these neurons, which produce the signaling molecule dopamine, let positively charged ions leave the cell, thereby damping the cells» hyperactive firing.

However, the impact of the two methylation - regulating enzymes was still seen at 10 to 15 months, when scientists found decreased expression of hundreds of genes — many of which are key tumor suppressor genes such as BMP3, SFRP2 and GATA4 — in the smoke - exposed cells and a five - or - more-fold increase in the signaling of the KRAS oncogene that is known to be mutated in smoking - related lung cancers.

The role of those receptors is to sense when the neuron has released enough of the neurotransmitter acetylcholine to signal a muscle cell to move.

When tumor cells are present in an environment that lacks oxygen and nutrients, they receive a signal that it is time for the cells to move to a different part of the body.

Receptors are «molecular switches» — when a specific molecule binds to them, they change shape and send a signal to the cell to perform a certain function.

When researchers sequenced the sponge's genome in 2010, they found genes that help individual cells cooperate as a group: how to divide, send signals to one another, and distinguish between friends and outsiders.

When Hong further boosted MAPK signals and DNA damage in the tumor cells, she found that she could intensify tumor cell death.

When this level was high enough, stress signals can lead to DNA damage and then trigger a form of cell death called parthanatos.

When mature, these cells grow hairs that bend in response to sound, generating electrical signals.

When muscle injury occurs, a complex chain of signals prompts the satellite cells to awaken and generate new muscle cells to repair the injury.

«Our observations suggest regulatory T cells can also become functionally exhausted when they lose LKB1 signaling.»

When dendritic cells not only signal myelin as a «target substance,» but also secrete the messenger substance IL - 6, a sort of molecular switch is flipped in the T cells.

When light enters the retina, photoreceptor cells translate it into electrical signals.

That is why, when your Internet signal isn't great or when the cell network is congested, Siri may come up short.

The research team demonstrated that even when produced directly in cells, this molecule still prevents the HIF - 1 signalling and the associated adaptation to hypoxia in these cells.

Brain cells not normally associated with communication send out a signal when they detect blood glucose levels are running low, and this triggers the stomach contractions.

These mutations can interfere with signals that tell cells when to grow and divide and when to stop.

When rats experience trauma, cells in the hippocampus — an area important for learning — produce signals for inflammation, helping to create a potent memory.

When syntaxin is folded, though, the bubbles can't stick to it and the nerve cell can't pass on its signal.

The receptor is believed to inhibit the ability of immune cells to autodestruct when they have outlived their usefulness, resulting in higher concentrations of proinflammatory signals (such as TNF) in the intestines of IBD patients.

When the hormone reaches the pancreas, it signals insulin - making cells to ramp up production, mouse experiments showed.

When immune cells attack myelin, nerve cells can't send their signals.

When they gave astrocytes both signals at once, the waves they produced in the cells was not just the sum of the two patterns.

When the environment is favorable, neurons alert egg cells to ramp up production of signaling molecules called prostaglandins.

«When mosquitoes are infected with these viruses, there's a signal that lets the mosquito's cells know that they are infected, resulting in targeting of the virus by the mosquito's immune response.

«Something similar occurs in our bodies when we're infected with these viruses; there are signals our cells detect that let our immune system know all is not well,» he said.

The results showed that, when applied, a long - term inhibition of Rho - kinase signaling increased the expressions of chondrocyte - specific genes and differentiation markers in human chondrosarcoma 2/8 cells.

Working with a mouse - model of parainfluenza virus infection, Sendai virus, which causes similar symptoms and patterns of tissue damage to RSV, researchers found that mice fared much worse in fighting the infection when their cells lacked IL - 27 signaling.

In particular, the published study states that, when root stem cells die due a genomic stress, a signal of steroid hormones is sent to reservoir stem cells so that these divide and replace the damaged ones.

The same signals that embryonic cells use to decide whether to become nerves, skin or bone come into play again when adult animals are learning whether to become afraid.

We have evidence that when ATP is outside of the cell it is probably a central signal that controls the plant's ability to respond to a whole variety of stresses.»

When activated by inflammatory markers in the gut, it sends a signal to the brain, where immune cells produce proteins such as IL - 6, leading to increased metabolism (and hence decreased levels) of the «happiness hormone» serotonin in the brain.

Saatchi, which is owned by France's Publicis Groupe, SA, chose LifeStraw over a field of competitors that included a reusable controller to improve the distribution of IV fluids, a collapsible wheel that can be folded down for easier storage when not in use on bicycles or wheelchairs, an energy - efficient laptop designed for children in developing countries, a 3 - D display that uses special optics and software to project a hologramlike image of patient anatomy for cancer treatment, an inkjet printing system for fabricating tissue scaffolds on which cells can be grown, a visual prosthesis for bypassing a diseased or damaged eye and sending signals directly to the brain, books with embedded sound tracks to help educate illiterate adults on health issues, a phone that provides telecommunications coverage to poor rural populations in developing countries, and a brain - computer interface designed to help paralyzed people communicate via neural signals.

When a T cell detects one, it morphs into a fighting machine, zapping invaders with lethal chemicals, multiplying into an army of identical killers or signaling other immune - system troops to join the attack.

But the researchers discovered that when the bacteria glom onto responsive colon cancer cells, the microbes boost a signal sent through a relay chain known as the beta - catenin pathway.

When it's time to get food, the egg sends signals to the tiny surrounding cells to make the feeding tubes, and as it grows and needs more nourishment, it signals them to make even more tubes.

Then there's the West Palm Beach symposium, held to recruit participants for a study testing what happens when aging people get infusions of plasma (the fluid part of blood packed with signaling proteins and other molecules but no red or white cells) from young people who've taken a drug meant to activate their immune system.

Frey and his colleagues made use of mathematical models to analyze the complex interplay between ecological factors and population dynamics, and were able to demonstrate that populations can indeed respond in a coordinated fashion to chemical information even when the signal molecules are generated by only a subset of the cells.

When the body encounters an infection, a molecular signaling system ramps up the body's infection - fighting system to produce more white blood cells to attack invading bacteria.

When bound to adrenaline, the beta2 - adrenoceptor on these tumor cells stimulates a positive signaling loop to accelerate invasion.

Biophysicists led by Professor Erwin Frey, who holds the Chair of Biological and Statistical Physics at LMU, have now shown theoretically how this can be accomplished even when only a subset of cells actually emits the requisite signals.

«We have shown that pericytes initiate the increase in blood flow seen when nerve cells become active, so we now know that functional imaging signals are caused by a pericyte - mediated increase of capillary diameter.

When the head accelerates or decelerates, they bend the sensory hair cells and send a signal to the brain telling it which way is up.

In the current study, researchers found to their surprise that most of the nerve cells in auditory cortex neurons that stimulate brain activity (excitatory) had signaled less (had «weaker» activity) when the mice expected and got a reward.