Sentences with phrase «cell structures as»

Orientin and vicenin are two water - soluble flavonoids that have been of particular interest in basil, and in studies on human white blood cells; these components of basil protect cell structures as well as chromosomes from radiation and oxygen - based damage.

Not exact matches

Based on a 3D image such as an MRI scan, Aspect's machine builds relatively complex organic structures out of a «hydrogel» embedded within cells taken from the body and grown in a cell culture.

Scientists have identified an alternative DNA structure described as a «twisted knot» inside living human cells.

In addition, concerning proteins, that are essential to the structure and function of all living cells, the odds of one protein occurring at random has been calculated as 10 113.

Commenting on Whitehead's doctrine of structured societies at the cellular level, John Cobb remarks: «Whitehead at that point was forced to explain the order in the cell in terms of its molecular structure, to which spontaneity was denied, and to explain the life of the cell in terms of the events in its empty space, which he depicted as radically unordered.

Birch and Cobb maintain that the ecological model is more adequate than the mechanical model for explaining DNA, the cell, other biological subject matter (as well as subatomic physics), because it holds that living things behave as they do only in interaction with other things which constitute their environment (LL 83) and because «the constituent elements of the structure at each level (of an organism) operate in patterns of interconnectedness which are not mechanical» (LL 83).

The question as to whether the structure of a cell is more like that of a brain or of a tree is a factual one.

Whitehead at that point was forced to explain the order in the cell in terms of its molecular structure, to which spontaneity was denied, and to explain the life of the cell in terms of the events in its empty space, which he depicted as radically unordered.

«Once the dough is mixed, we give it time to ferment; this gives bread a web - like cell structure or what some know as bread's «holes,»» Wildflower says.

I like to let my breads rise slowly, and for as long as possible before baking because it helps with cell structure, but I can't say I ever have the patience to wait that long!

You should feel free to let the bread rise longer, as well; adding rise time can give the dough the benefit of getting «comfortable in its skin,» so to speak, as it more gradually building the cell structure.

Just as the structure of our cells doesn't change with our diet, the milk our bodies produce doesn't change depending on our nutrition.

Since the first human brain organoids were created from stem cells in 2013, scientists have gotten them to form structures like those in the brains of fetuses, to sprout dozens of different kinds of brain cells, and to develop abnormalities like those causing neurological diseases such as Timothy syndrome.

The pattern and rate of this perfusion guides how the bone structure grows, just as blood does in vivo, and the physical stimulation of the cells provided by this flow is critical for proper growth.

TOUGH STUFF A new wood - compacting process crushes the gaps between cell walls in natural wood (porous structure seen in the scanning electron microscopy image, left), making the densified wood (right) as strong as steel.

Lipke, who specializes in the structure and function of cell surface markers in yeasts, says Rezende was as independent as a typical late - term Ph.D. student.

AS A species made up of eukaryotic cells complete with mitochondria, nuclei and other complex structures, it's easy for us Homo sapiens to look down on the far simpler prokaryotes, the cells of which lack such structures.

SOD1 normally works in cells as a two - copy structure, a dimer.

Stuart Hameroff, an anesthesiologist who has spent many years studying brain functions, has collaborated with renowned Oxford University polymath Roger Penrose on a model that explains consciousness as the result of quantum processes occurring in tiny structures called microtubules in brain cells.

BRAIN CANDY A new database offers a deep look at living human nerve cells, revealing elaborate branching structures and myriad shapes, such as in this neuron called a pyramidal cell (cell image, left and 3 - D computer reconstruction, right).

They all use RNA molecules as messengers to transfer the information from DNA to cellular factories called ribosomes, which then build proteins, which in turn drive our metabolisms and form the structures of our cells.

Now they report recovering not just collagen — which conveys little evolutionary information because it is the same in almost all animals — but also haemoglobin, elastin and laminin, as well as cell - like structures resembling blood and bone cells.

When combined with other polymers, the structures could also convert light into electricity and serve as the basis for a novel type of solar cell.

If the three - dimensional structures of the herb elements are elucidated, and a database of them can be established, it may facilitate computer - assisted imitation of docking between the herb element and physiologically important cell membrane proteins such as receptors, ion channels, and transporters.

«If we win, the entire regulatory structure for autologous cell processing, with or without culture, will be rewritten such that any physician using good practices and treating patients responsibly can use stem cells as part of his or her medical practice,» he says.

Even though the chemical structure of auxin was identified as early as in the 1930s, it is still not completely resolved how the hormone gets to its target cells and unfolds its effect there.

«Even something as seemingly simple as red blood cells that don't have a nucleus evolved a structure and a function that is much more complicated than we can perceive by looking under the microscope,» says Jason Acker, associate director of development for Canadian Blood Services.

«First cell - type census of mouse brains: Surprises about structure, male - female differences: A multiyear project in the Brain Initiative, qBrain is already revealing the brain as never before.»

This ingrowth may from the beginning possess a tubular structure, but in other instances glands may start as a solid column of cells which subsequently becomes tubulated.

A physician and cell biologist who won a 1972 Nobel Prize for his work describing the structure of antibodies, Edelman is now obsessed with the enigma of human consciousness — except that he does not see it as an enigma.

This group also clarified that Shugoshin controls DNA replication (the process by which DNA makes a copy of itself during cell division) in subtelomeres as well as higher - order structure of chromosomes.

Scientists headed by Dr. Stevens Rehen differentiated human induced pluripotent stem (iPS) cells into neural stem cells and into further complex tridimensional structures, known as neurospheres and brain organoids.

While mouse models have traditionally been used in studying the genetic disorder, Deng said the animal model is inadequate because the human brain is more complicated, and much of that complexity arises from astroglia cells, the star - shaped cells that play an important role in the physical structure of the brain as well as in the transmission of nerve impulses.

As it can take weeks to grow human cells into intact differentiated and functional tissues within Organ Chips, such as those that mimic the lung and intestine, and researchers seek to understand how drugs, toxins or other perturbations alter tissue structure and function, the team at the Wyss Institute for Biologically Inspired Engineering led by Donald Ingber has been searching for ways to non-invasively monitor the health and maturity of cells cultured within these microfluidic devices over extended timeAs it can take weeks to grow human cells into intact differentiated and functional tissues within Organ Chips, such as those that mimic the lung and intestine, and researchers seek to understand how drugs, toxins or other perturbations alter tissue structure and function, the team at the Wyss Institute for Biologically Inspired Engineering led by Donald Ingber has been searching for ways to non-invasively monitor the health and maturity of cells cultured within these microfluidic devices over extended timeas those that mimic the lung and intestine, and researchers seek to understand how drugs, toxins or other perturbations alter tissue structure and function, the team at the Wyss Institute for Biologically Inspired Engineering led by Donald Ingber has been searching for ways to non-invasively monitor the health and maturity of cells cultured within these microfluidic devices over extended times.

Such organs have been built before, but only with the help of pre-existing structures to hold the new cells in place — such as the collagen matrix left after a donor heart has been stripped of its cells or made with a 3D printer.

In contrast, prokaryotes are organisms, such as bacteria and archaea, that lack nuclei and other complex cell structures.

Using a powerful microscope to observe mouse oocytes as they split, Ellenberg's group found that the spindles assembled into two coherent structures, one for the future egg and one for the future polar body.At first, spindles appeared throughout the cell in a sort of mesh.

This results in shifts in the structure of the brain as it forms and displacement of cells from where they're supposed to be, including those that line the ventricles and help control fluid flow.

Other vital structures, the axons and dendrites — known collectively as neurites — that project from the nerve cells and send and receive messages are dependent on this neural transport network.

A team from the Spanish National Cancer Research Centre (CNIO) has determined for the first time the high - resolution structure of a complex (R2TP) involved in key processes for cell survival and in diseases such as cancer.

In 1963, the couple moved to NYU to work as immunology research fellows in the lab of Baruj Benacerraf (who shared the Nobel Prize in Physiology or Medicine in 1980 for his work on the role of genetically determined, cell - surface structures in the regulation of immune reactions).

And even if they are able to flop around a bit in their natural states within the cell, surely they snap into structured positions when they encounter their binding partners, just as Kriwacki's p21 did.

Óscar Llorca and his team have used this technique to learn about the structure and functioning of a complex system called R2TP, which is involved in various key processes for cell survival such as the activation of the kinases mTOR, ATR and ATM, proteins that are the target of various cancer drugs currently being developed.

In another application, the sensor was used to study how cells respond to the introduction of extracellular hydrogen peroxide, which produces a wave of oxidation as it moves through the cellular structures.

Cohesin controls gene expression and chromatin structure, as well as enabling chromosomes to separate correctly immediately prior to cell division.

They found, as expected, that movement in a cell's preferred direction caused a greater excitatory current to enter the cells» dendrites, the structures that receive incoming signals.

Holographic, phase contrast or differential interference contrast (DIC) miscroscopes have been implemented especially for making «visible,» otherwise «invisible,» transparent objects, opening a new pathway towards the study and characterization of relevant structures such as biological cells or protein layers.

The increased surface area of the rippling «leaf» creates three times as many catalytic contact points as other molybdenum disulfide structures, and the new creation can handle higher temperatures than platinum without sintering and gumming up the cell.

As a result, these blood vessels will be structured more tightly, which can prevent cancer cells from spreading to other organs.

«Regulator of chromosome structure crucial to healthy brain function and nerve development: Cohesin protein identified as key to control of chromosome structure underlying nerve cell network formation.»