Zitat des Tages über Zellen / Cells:
Everything you'll ever need to know is within you; the secrets of the universe are imprinted on the cells of your body.
Through their work with fetal tissue, researchers hope to find ways to harness embryonic stem cells which have the ability to become any type of human cell and could provide new treatments for many illnesses.
If you have pendulum clocks on the wall and start them all at different times, after a while the pendulums will all swing in synchronicity. The same thing happens with heart cells in a Petri dish: They start beating in rhythm even when they're not touching one another.
A short telomere represents a persistent and non-repairable damage to the cells, which is able to prevent their division or regeneration.
Windmills and solar cells are carbon-free sources of electricity. But they are costly. If you've been investing in those, give it up. That game is effectively over.
I truly believe that God has given us few brain cells, and you have to direct them to the right things that make you happy.
It doesn't matter whether you can or cannot achieve high temperature superconductivity or fuel cells, they will always be on the list because if you could achieve them they would be extremely valuable.
When I was in high school, I became interested in cytochemistry: chemical analysis under the microscope, and trying to understand the composition of cells.
It is the cells which create and maintain in us, during the span of our lives, our will to live and survive, to search and experiment, and to struggle.
Activating oxygen can produce compounds called radicals that put oxidative stress on cells. Such stress could ultimately lead to cancer and other diseases.
Understanding how Cas9 is able to locate specific 20-base-pair target sequences within genomes that are millions to billions of base pairs long may enable improvements to gene targeting and genome editing efforts in bacteria and other types of cells.
The body is a community made up of its innumerable cells or inhabitants.
These little grey cells. It is up to them.
I was what? - twelve years old - and I was thrown in the cells with these people, so I learned fast.
We know that in 2001 it was believed 78 stem cell lines existed. But now we know there are only 22 that are viable, and they have been contaminated with mouse stem cells.
If we could take one of my skin cells and turn it into an embryo-like cell and turn it back into a skin cell, it has reset almost all of the developmental indications of age.
Whole foods like grains and beans release their sugar very, very slowly because of the fiber in them, and they don't give you a sugar rush. They feed your cells as needed, and as a result, you have loads of stable energy that powers you through the day.
Although each egg cell produced by a woman carries a single X chromosome, the sperm cells produced by a man carry either an X or a Y. This means, in very simple terms, that the sperm cell determines a baby's sex.
Without micronutrients to remove waste, cells become congested, DNA gets broken, and the body doesn't have the ability to repair itself. Eventually, you get sick.
We have found that fusions of GFP with the RING finger domains of certain E3 ubiquitin ligases creates an unstable GFP. We have used unstable GFP to learn how disruption of microtubules in the touch receptor neurons causes a generalized reduction in protein levels in the cells.
Where he was, where his cells were, where his logistical channels were, how he communicated. Who his allies were. Who donated to them. I think it's fair to say the entire range of sources were brought to bear.
What seems to be clear to me is that after the primary infection most of the cells die indirectly, but at the later stage, when the viral load is very high, the virus kills a lot of cells directly.
I learned about HeLa cells in my first basic biology class, and I just became completely obsessed with them from that point on.
If you wanted to dissect the structure of living cells, genetic analysis was an extremely powerful method, so my interest turned to that.
Well, there are two kinds of stem cells: adult stem cells, which you can get from any part of a grown body, and embryonic stem cells. These are the inner- core of days-old embryos that can develop into any kind of cell.
Aside from bringing back extinct species, reanimation could help living ones by restoring lost genetic diversity. The Tasmanian devil (aka Sarcophilus harrisii) is so inbred at this point that most species members can exchange tumor cells without rejection.
Your body thinks radium is a great thing to pack into bone - where it kills some cells outright and scrambles the DNA of others, causing problems like cancer.
There are no bona fide treatments available for embryonic stem cells. There is nothing in the laboratory, and there is certainly nothing in the clinics available to patients.
I like knowing that the further back one traces any lineage, the narrower the path grows, to the haunt of just a few shaggy ancestors, with luck on their side, little gizmos in their cells and a future storied with impulses and choices that will ultimately define them.
Brain cells are normally not sensitive to light. So by introducing light-sensitive proteins into specific types of neurons, we can now selectively control that specific type of neuron by shining light in the brain.
They called themselves an army. They were planning on recruiting more armies. They were planning on splitting up and forming smaller cells and going into different areas, recruiting more members and just growing until they had started a full scale war in this country.
But cord blood also holds the great potential of producing pleural potential cells that could cure many other diseases such as juvenile diabetes, a disease that I live with every day.
Your immune cells are like a circulating nervous system. Your nervous system in fact is a circulating nervous system. It thinks. It's conscious.
On some peculiar pigmented cells found in two mosquitoes fed on malarial.
This particular nurse said, Cancer cells are those which have forgotten how to die. I was so struck by this statement.
Economic depression cannot be cured by legislative action or executive pronouncement. Economic wounds must be healed by the action of the cells of the economic body - the producers and consumers themselves.