Sentences with phrase «when skin cells»

Congested skin occurs when skin cells and sebum build up and clog your pores.

Scaly silver patches are formed when skin cells replicate quickly than normal rate.

«This is meant for nighttime application, when skin cells activate the repair mechanisms to help undo damage from the sun and environment.

When skin cells are damaged by ultraviolet light they produce more pigment, which makes skin appear darker.

When skin cells responsible for pigmentation are exposed to estrogen or progesterone, the cells respond by adjusting their melanin production, resulting in either skin darkening or lightening.

When the skin cell sample is taken from someone with a specific disease, those iPS cells contain a complete set of the genes associated with the illness, and disease models can be developed to facilitate research and drug discovery.

Not exact matches

When applied to the skin, it stimulates the breakdown of fat cells via lipid metabolism, slowing down the accumulation of fat cells.»

When used on the skin, it balances oil production, unblocks sebaceous glands, which can lead to blackheads and whiteheads, destroys bacteria, and removes damaged skin cells.

Bilirubin is a yellow substance created when the body replaces old red blood cells with new ones causing yellowing of the skin and whites of the eyes.

Inflammatory breast cancer is a rare and aggressive form of breast cancer that occurs when malignant cells block the skin and lymph vessels of the...

(Best to actually be IN the shower or bathtub when you do this treatment, as the brush is quite effective at removing dry skin and you don't want dead skin cells all over your bathroom floor.

When the foreskin separates, skin cells will be shed and new ones will develop to replace them.

We found that when it comes to cutaneous immunity — specific to skin — the immune system was being obstructed by skin cells that were too prone to producing inflammation responses.

Martin Fussenegger of the Swiss Federal Institute of Technology in Zurich and his colleagues made this implant by genetically altering human skin cells so that they would become darker in colour when exposed to rising calcium levels.

Thin films made of heart cells and hydrogel change hues when the films shrink or stretch, much like chameleon skin.

An implant of genetically engineered skin cells has been designed to grow darker in colour when it detects early breast, prostate and colon cancers

Fat cells called adipocytes are normally found in the skin, but they're lost when wounds heal as scars.

When these cultured cells were exposed to an air / liquid interface in the laboratory, they stratified, generating what the authors referred to as a multi-layered, «skin - like organoid.»

Melanoma occurs when melanocytes — cells that make pigment in skin and hair — undergo a malignant transformation.

Based on the response to these pulses, the Prelude can determine when it has reached live underlying skin cells that allow the biosensor to provide a more accurate reading.

Under the microscope, a skin cell might look cancerous when it really wasn't.

A promising alternative to hESCs emerged in 2006 when researchers produced so - called induced pluripotent stem cells (iPS) from ordinary tissue such as skin.

When they tested the pooled skin or blood cells for mitochondrial DNA mutations, the levels of mutations appeared low.

Because each cell has its own unique mutation, when researchers examine a pinch of skin or drop of blood containing millions of cells, most mitochondrial mutations are hidden.

It was 1996 when biologists first fused a mammalian skin cell with an egg cell, cloning Dolly the sheep.

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.

When Kyoto University researcher Shinya Yamanaka announced in 2006 that his lab had created iPS cells from mouse skin cells for the first time, biologists were stunned.

Fisher's goal was to understand how to strike down the skin cells called melanocytes when they inexplicably go out of control and cause melanoma.

A major breakthrough occurred last year when scientists figured out how to turn skin cells into ES - like cells that could serve the same purpose (Science, 23 November 2007, p. 1224).

Earlier work hinted that skin follicles harbor stem cells kept in reserve to replace epidermal cells when they die.

In healthy skin, CD49a + and CD49a cells are dormant, but quickly respond with inflammatory and cytotoxic effects when stimulated by IL - 15, a protein secreted from skin cells as a rapid - response defence against microbial attack.

One of the greatest came in November 2007, when scientists in Japan and the United States reported that they could make adult skin cells from mice revert to the embryonic state.

When grafted onto bald mice, the cells produced not only furry tufts but stretches of skin complete with the oil - producing glands that help keep it supple as well.

The remarkable discovery that it is possible to turn skin cells back to an embryonic state, when they have the potential to become any type of cell in the body, could open up a huge range of possibilities.

Understanding this process - which is particularly important when cells are first taking on specialized identities such as nerve cells, muscle, skin, and so on - helps explain how complex organisms can arise from a finite number of genes.

But then ISS itself serves as a home to six microbe - filled humans who stay in orbit for as long as 6 months each and routinely shed skin cells when they exercise, comb their hair, eat, and do other activities that potentially can contaminate their isolated «built environment.»

The specific pattern of epigenetic marks in a cell type specifies identity and this epigenetic control is vital to what makes our cells different, for example a skin cell from a liver cell, when they all contain the same genetic instructions.

But this process — even when taking skin cells from an older human — doesn't guarantee stem cells with «older» properties.

The population of T cells that remains are tissue resident memory cells, which live long term in skin and, when functioning properly, should be fighting infection.

How did you feel when you realised you had made human embryonic - like cells from skin cells?

We had started working on this more than a year ago, when we tried inserting four transcription factors, which regulate genes, into the skin cells.

When Oudhoff applied human saliva to skin - cell cultures scratched by a needle, however, he found that the concentrations of growth factors were too low to have any therapeutic effect.

Using a device engineered by Nan Marie Jokerst, Ph.D., a professor of electrical and computer engineering at Duke's Pratt School of Engineering, the researchers showed that UVB caused calcium to flow into the skin cells, but only when the TRPV4 ion channel was present.

When chemical weapons are in the air or lingering on the ground, skin cells are exposed first.

When susceptible people come into contact with flakes of cat skin called dander, T cells in their immune systems set off a chemical chain reaction that produces the familiar symptoms of allergy, including sneezing, runny noses, itching and asthma.

More important, the technique leaves the underlying tissue unharmed, prefiguring a day when doctors might build miniature sensors directly onto the skin of their patients, or biologists might use microscopic tweezers to capture and study individual cells.

When the scientists applied nitroglycerin patches, which cause increased blood flow to the skin, to nine normal mice breathing air with adequate oxygen, EPO and red blood cell levels shot up, confirming that diverting blood into the skin drives the production of EPO.

These cells are now thought to serve as the immune system's principal sentinels in the skin — when they detect damage signals from nearby wounded skin cells, they summon other, non-skin-resident immune cells to the site of the wound.

There, the cells begin forming bones, skin and veins in almost the same way as when the animal was developing inside the egg.

This inflammation is important in the normal healing process, affecting tissue growth and blood flow changes that allow the tissue to heal; when the inflammation subsides, skin cells start growing to cover the wound and help the tissue knit together.