Sentences with phrase «as old cells»

Body protein is constantly being turned over as old cells die and new cells replace them.

As older cells are most likely to turn cancerous, telomere shrinkage may have actually evolved as a means to repress tumor growth [source: Biever].

As our older cells and cell layers age and eventually die, we must have the ability to manufacture new cells.

Not exact matches

(i) a woman's right to choose; (ii) teaching evolution in school; (iii) medical immunization of teen girls against HPV; (iv) assisted suicide; (v) gay marriage; (vi) my right to view art and theatre deemed «offensive,» «blasphemous» or «obscene» by theists (vii) basic $ ex education for older school children; (viii) treating drug abuse as principally a medical issue; (xi) population control; (x) buying alcohol on a Sunday; (xi) use of condoms and other contraceptives (xii) stem cell research.

God started with a small party in a garden, moved on toward some pow - wows at alters in the desert, then moved into a moveable tabernacle (kind of like an Old Testament RV), then reigned in a temple (especially the God - cave of the Holy of Holies, then disappeared while giving the Jews the silent treatment for some 400 years, then came back to the temple, then traveled the highways and byways with anyone who wanted to join the fun and whooped it up with society's outcasts and wedding attenders, then moved on to some public forums, then into some clandestine home groups and a few jail cells, and eventually made his way into traditional church as we now know it.

(i) a woman's right to an abortion; (iii) medical immunization of teen girls (and boys) against HPV; (iv) assisted suicide; (vi) gay marriage; (vii) my right to view art and theatre deemed «offensive,» «blasphemous» or «obscene» Catholics; (viii) basic $ ex education for older school children; (ix) treating drug abuse as principally a medical issue; (x) population control; (xi) buying alcohol on a Sunday in many places; (xii) use of condoms and other contraceptives; (xiii) embryonic stem cell research; (xiv) little 10 year - old boys joining organizations such as the Boy Scouts of America, regardless of the religious views of their parents; and (xv) gays being allowed to serve openly in the military.

Use what few brain cells you have and use LOGIC and REASON instead of blindly accepting old myths as reality.

However, the argument is still far from clear - cut as, of course, these 14 - day - old human cells have much greater potential than any worm or parasite.

It was brand new in 1989, and housed some of the most high - profile criminals in the country, like Charlie Manson, and for a while it appeared as if the 26 - year - old fighter would spend the rest of his prime in a jail cell surrounded by evil, something that had grown inside him, something he wanted to destroy.

It is not made of food, but of the contents that the infant has swallowed while in your uterus such as old skin and blood cells.

Cell phones are everywhere; even the old street cleaners are looking on their devices as they sweep and hundred - year - old grandmothers use them.

But I distinctly remember coming to grips with that as I was driving from Los Angeles to Las Vegas, and I was talking to me older brother, who»; s a physician on the cell phone as I was driving across the desert.

Because fetal cells from other pregnancies stay inside Mom, this means that very likely people have cells of their older brother and sister as well as their mother inside them.

Only, as it turns out, people who are sticking it to the man rely on the tools at hand, their cell phones, in particular Blackberries (what I've called «mundane tools» in a piece on political activism), as well as on, well, good old mass media, especially television.

Researchers show for the first time that healthy older men and women can generate just as many new brain cells as younger people.

Likewise, the American Medical Association endorses donations to a public bank, unless there's a known medical reason a family member might need the umbilical cord cells, such as a leukemia diagnosis for an older child.

Nishimura's team proposes that the same process leads to the reduction in stem cells in the follicles of older people, especially as DNA damage accumulates as we age.

As brain cells get older, some proteins within and around the cell misfold.

Cone cells in the retina each carry a stack of membranous discs: as they grow they shed older discs and generate new ones.

Now cells from two one - year - old babies born as a result of this treatment have indeed turned out to have a little extra DNA from a donor mother, as well as that from their own parents.

Current research is looking at why inhibiting certain molecules, such as mouse protein Stat3, promote muscle regeneration in mice and how to engineer orthopedic implants from stem cells to replace damaged cartilage and bone, but the results of that effort aren't expected to be necessarily aimed at the old.

The fact that ReBiL can be used to study living cells (as opposed to many older methods that use isolated proteins from cells to determine their interactions) makes it an ideal way to observe these unexpected side effects and to modify the drugs to eliminate them, Wahl says.

The process, reported in Human Reproduction, utilizes DNA fingerprinting (an assessment of active genes in a given cell) to boost the success rate of IVF and lower the chances of risky multiple births by identifying which of several five - day - old embryos are most likely to result in pregnancy The new method, which will replace unproved alternatives such as choosing embryos based on their shape, is likely to up the success of women becoming pregnant and lower their chances of having multiple births.

Cells known as osteoblasts make new bone; other cells, osteoclasts, destroy old Cells known as osteoblasts make new bone; other cells, osteoclasts, destroy old cells, osteoclasts, destroy old bone.

It isn't clear exactly why the differences fade, Hochedlinger says, but it may be that the expression of embryonic genes is strengthened as the cells grow in culture, gradually overwriting the cells» old gene - expression patterns.

Nevertheless, as people grow older the number of stem cells decreases and those that remain are less able to grow and repair tissue.

And even cells that were young, such as white blood cells that may be just a few days or weeks old, still carried the distinct genetic imprint of their 50 - year - old donor.

Sruti: I started to conduct a study on driving performances because, as a 16 - year - old, I'm going to be a future driver and I wanted to know the risks that I would be putting myself in by talking on a cell phone while driving or using a Bluetooth device while driving.

Might it be because the cells surrounding the egg are not good at making enough feeding tubes as the egg grows older?

But when researchers injected Anas platyrhynchos ducklings at 4, 9, or 14 weeks old with red blood cells from sheep to simulate a parasitic infection, the birds — as adults — explored new items in their environment and approached small orange toys, a color they typically avoid because they seem to associate it with toxic food.

Until now, the 1.9 billion year old Grypania fossils, found in Michigan, were widely seen as the first clusters of organised and communicating cells.

As we get older, a growing proportion of that T - cell pool is used up on cytomegalovirus, with fewer cells available to fight seasonal infections.

Bisphenol S, or BPS, a common chemical in everyday plastics and papers, has the same toxic, hormone - disrupting effects in cells and animals as its older relative, bisphenol A, or BPA.

«And as these cells get older, they become more toxic to their environment.»

A preclinical study in mice published by Cell Press January 16th in the journal Cell reveals that drugs known as histone deacetylase inhibitors (HDACis) can enhance the brain's ability to permanently replace old traumatic memories with new memories, opening promising avenues for the treatment of posttraumatic stress disorder (PTSD) and other anxiety disorders.

Published in Nature Communications, the study shows that as egg cells mature in older women, paired copies of matching chromosomes often separate from each other at the wrong time, leading to early division of chromosomes and their incorrect segregation into mature egg cells.

Traditionally, the process involves plucking the inner cell mass from a 5 - day - old embryo known as a blastocyst (a round ball of 150 to 200 cells the size of a grain of sand), which destroys the embryo.

The reprogrammed skin cells that have led to this enthusiasm seem to have the same properties as the embryonic stem cells (ESCs) found in human embryos just a few days old.

Twenty - five years from now, our kids will only know some diseases, such as osteoporosis, from old books, and by then we will probably know how to repair tissues with stem cells.

All the muscles of our faces develop from a strip of cells at the base of the embryonic head, just as they do in lampreys, which belong to one of the oldest lineages of vertebrates alive today.

As demonstrated by Leonard Hayflick a half - century ago, human cells have a limited replicative lifespan, with older cells reaching this limit sooner than younger cells.

As the source of their nucleus, the Japanese team took connective tissue cells from 24 - day - old fetuses of a black breed of pig.

The effort, as yet confined to animal studies, is only about a decade old but has become one of the hottest areas of neuroscience research because it promises a more precise understanding of the hugely complex network of cells in the brain.

The fossilized cells, reported today as the oldest animal sperm ever collected, belong to a class of cocoon - producing worms called clitellate annelids, more commonly known as earthworms, leeches, and their relatives.

When the induced pluripotent stem cell method was used, as expected, the patterns in the neurons were indistinguishable between young and old derived samples.

The methyl molecules have the greatest impact during periods of rapid cell division, such as when an embryo is only a few cells old.

Hütter speculates that Brown was helped to a total cure by what is known as the host - versus - graft reaction: New stem cells and all their progeny see the old immune cells as «other» and kill them off.

UT Southwestern researchers will now try to find out if the KROX20 in cells and the SCF gene stop working properly as people age, leading to the graying and hair thinning seen in older people — as well as in male pattern baldness, Dr. Le said.

Kipnis proposes that with fewer T cells, older people can not effectively suppress the inflammation around their brains — which could play a part in the cognitive decline that people experience as they age.

As the cells get older, they acquire clumps of proteins and extra pieces of DNA, but when Angelika Amon at the Massachusetts Institute of Technology and colleagues tracked spores from old and young yeast cells they found that such abnormalities disappeared, meaning all spores had the same lifespan.