To better understand what happens during immune reactions in the body, researchers at Tübingen University have developed a new way of labeling T - cells, allowing them to track the T -
cell movement in mice using non-invasive positron emission technology (PET).
Because according to a report in the May issue of Current Biology, the jellyfish can accelerate their stinging cells to over five million g — it might be the fastest
cell movement in nature.
To better determine the role of specific chemoattractants in type III hypersensitivity, lead author Yoshishige Miyabe, MD, PhD, a research fellow in Luster's lab, used multiphoton intravital microscopy — an imaging technology pioneered for studies of immune
cell movements in living animals by CIID investigator and co-author Thorsten Mempel, MD, PhD — to follow in real time the development of IC - induced arthritis in a mouse model of rheumatoid arthritis.
In vivo imaging of tumor - propagating cells, regional tumor heterogeneity, and dynamic
cell movements in embryonal rhabdomyosarcoma.
Not exact matches
Adding
in information from personal assistants such as Google Assistant and Android
cell phone
movement and use, Google can map much of a person's activity throughout the day.
Waddington's paper
in Towards a Theoretical Biology follows on from one by Brian Goodwin («A Statistical Mechanics of Temporal Organization
in Cells») in which Goodwin looks at the question of how ordered systems like cells, and still more macro-organisms, supervene on the movements of their constituent molecules, and how one is to close the gap between molecular biology and cell physio
Cells»)
in which Goodwin looks at the question of how ordered systems like
cells, and still more macro-organisms, supervene on the movements of their constituent molecules, and how one is to close the gap between molecular biology and cell physio
cells, and still more macro-organisms, supervene on the
movements of their constituent molecules, and how one is to close the gap between molecular biology and
cell physiology.
Sodium plays a role
in your critical body functions by regulating the
movement of water
in and out of your
cells.
She says, «Our new findings show that
in the absence of embryonic
movement the
cells that should form articular cartilage receive incorrect molecular signals, where one type of signal is lost while another inappropriate signal is activated
in its place.
«Our new findings show that
in the absence of embryonic
movement the
cells that should form articular cartilage receive incorrect molecular signals, where one type of signal is lost while another inappropriate signal is activated
in its place,» Paula Murphy, a professor of zoology at Trinity College Dublin who co-led the study, says.
At week 30 his bone marrow will have taken over red blood
cell production and his first bowel
movement is being developed
in his intestines.
Moving up to 2006, Mike mentioned an SMS - driven electoral victory
in South Korea, a successful petition drive
in South Africa and a
movement to send peace messages to Iraqi
cell phones (for a look at less pacific uses of
cell phones
in the war
in Iraq, see this article from a couple of months ago).
A longtime Albany reporter was arrested early Wednesday afternoon after he used his
cell phone
in the lobby of the New York State Senate — a move that gave birth to a hashtag
movement and saw Gov. Andrew Cuomo step
in to free him.
p75NTR - independent transport was also more erratic, with a larger proportion of viruses moving
in the wrong direction, i.e. away from the
cell body and towards the tip, suggesting that p75NTR facilitates the directed fast
movement of the virus.
As the cochlea's fluid moves, about 15,000 hair
cells sitting
in it, each tuned to a particular frequency, pick up the motions; the cochlear nerve translates the
movements into auditory messages that are sent to the brain.
The new model overcomes a long - standing barrier to accessing hair
cells, the delicate sensors
in the inner ear that capture sound and head
movement and convert them to neural signals for hearing and balance.
Neurons that fire
in response to horizontal and vertical
movements had already been found
in the retinas of mammals, but the only
cells known to be sensitive to approaching objects were
in the brain.
While investigating mouse eye
cells, Botond Roska and his team at the Friedrich Miescher Institute for Biomedical Research
in Basel, Switzerland, noticed that one type behaved unusually
in response to
movement.
They used this novel simulation approach to build a model of a sperm
cell that demonstrates cellular
movement from individual dynein protein molecules
in the tail all the way up to the whole
cell, allowing them to observe how changes at the atomic level are reflected
in larger - scale structures.
Sonia Coontz of Long Beach, Calif., received stem
cell treatment two years ago after a severe stroke impacted
movement in her right arm and leg and garbled her speech.
Published
in Molecular Neurobiology, the study led by Dr Elodie Siney under the supervision of Dr Sandrine Willaime - Morawek, Lecturer
in Stem
Cells and Brain Repair at the University, analysed how enzymes called ADAMs affect the movement and function of the human tumor c
Cells and Brain Repair at the University, analysed how enzymes called ADAMs affect the
movement and function of the human tumor
cellscells.
One of the mysteries of the living body is the
movement of
cells — not just
in the blood, but through cellular and other barriers.
In particular, HD mutations impacting the RhoGTPase signaling pathway interfered with filopodia, the slender projections that
cells use to direct
movement and communicate with other
cells.
It is controlled,
in part, by a series of channels on the surface of heart
cells that regulate the
movement of different ions into and out of the
cells.
The new findings prove that a group of
cells in the brain can turn a short - lived sensation into complex, long - lasting muscle
movements, says physiologist Simon Alford of Northwestern University.
In the lung cancer cell shown above at left, red shades indicate the presence of actin, a structural protein important in cell movemen
In the lung cancer
cell shown above at left, red shades indicate the presence of actin, a structural protein important
in cell movemen
in cell movement.
The tremors and other
movement impairments of Parkinson's are triggered by the death of dopamine - producing
cells in the brain, so the investigators used flies that had been genetically engineered to have their dopamine
cells die off as they age.
Using a mouse model, the team also demonstrated that two processes during neurodevelopment are regulated by the gene: proliferation — the replication of neuronal stem
cells that have the potential to become multiple different kinds of
cells, including neurons — and migration — the
movement of neurons to specific locations
in the brain during development.
The olfactory system comprises six million to 10 million receptor
cells (of which there are nearly 400 different types) and links to multiple brain structures and neural pathways, including those involved
in memory, emotion and
movement.
When patients had high levels of activated CaM kinase II floating around
in their brains, nerve
cells got overstimulated, and symptoms of OCD or a
movement disorder could erupt.
When the researchers administered drugs to inhibit the
movement of certain «motor» proteins that transport mitochondria and other cargo within the
cell by traveling along microtubules, the mitochondria accumulated
in the axon of the neuron and never made it to the synaptic terminal.
Work on animals has suggested that ultrasounds can
in fact interfere with fetal brain development, derailing the normal
movements of
cells that populate the brain.
He and colleagues have determined what gives cholera bacteria their curved shape and whether it matters (a polymer protein, and it does matter; the curve makes it easier for cholera to cause disease), how different wavelengths of light affect
movement of photosynthetic bacteria (red and green wavelengths encourage
movement; blue light stops the microbes
in their tracks), how bacteria coordinate
cell division machinery and how photosynthetic bacteria's growth changes
in light and dark.
He and colleagues are collecting eggs to track the
cells»
movements in tame and fearful birds.
Reichert says that such ultrathin layers of water are a common phenomenon, and understanding the behavior of HDL and LDL water may lead to insights into water's behavior
in diverse situations, from ice skating to ion
movement across biological
cell walls.
But little is known about how ionizing radiation affects the extracellular matrix (ECM), a patchwork of proteins and other biomolecules that surrounds
cells and plays a vital role
in their shape,
movement and signaling functions.
Lewy bodies are protein deposits that develop
in nerve
cells in regions of the brain involved
in thinking, memory and
movement.
The disease is caused by the accumulation of abnormally shaped α - synuclein proteins
in neurons, leading to particularly toxic effects
in dopamine - releasing
cells located
in brain regions that control
movement.
Gut microbes may play a critical role
in the development of Parkinson's - like
movement disorders
in genetically predisposed mice, researchers report December 1
in Cell.
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.
They found increased inhibitory currents
in response to
movement in the nonpreferred direction, suggesting that inhibitory inputs play a role
in the ganglion
cell's response.
Using an advanced imaging technique called intravital microscopy, the researchers followed the
movement and interaction of HIV - infected
cells in the spleen of mice.
Labeling biomolecules with light - emitting nanoparticles is a powerful technique for observing
cell movement and signaling under realistic,
in vivo conditions.
The ganglion
cells are third or fourth
in a chain of neurons triggered when light strikes the retina; the study suggested that neurons somewhere
in this path calculate
movement direction from the timed interplay of excitatory and inhibitory neural impulses.
In a 2006 study published in Cell, Vidal and Huda Zoghbi, a neurobiologist at Baylor College of Medicine in Houston, Texas, teamed up to show previously unsuspected interactions among the proteins produced by mutated genes in several of the movement disorders known as ataxia
In a 2006 study published
in Cell, Vidal and Huda Zoghbi, a neurobiologist at Baylor College of Medicine in Houston, Texas, teamed up to show previously unsuspected interactions among the proteins produced by mutated genes in several of the movement disorders known as ataxia
in Cell, Vidal and Huda Zoghbi, a neurobiologist at Baylor College of Medicine
in Houston, Texas, teamed up to show previously unsuspected interactions among the proteins produced by mutated genes in several of the movement disorders known as ataxia
in Houston, Texas, teamed up to show previously unsuspected interactions among the proteins produced by mutated genes
in several of the movement disorders known as ataxia
in several of the
movement disorders known as ataxias.
But that didn't pinpoint the site of computation;
cells earlier
in the pathway might be analyzing motion and delivering a larger excitatory signal to the ganglion
cells in response to
movement in the preferred direction.
Using a novel approach for imaging the
movement of immune
cells in living animals, researchers from the Massachusetts General Hospital (MGH) Center for Immunology and Inflammatory Diseases (CIID) have identified what appear to be the initial steps leading to joint inflammation
in a model of inflammatory arthritis.
These biochemical processes are responsible for a broad range of
movement in living organisms, including moving molecules around the interior of a
cell or copying DNA into another form of genetic material, RNA.
In the inner ear of vertebrates, the balance system consists of three semicircular canals that contain fluid and sensory hair
cells that detect
movement of the head.
In earlier studies, Hajishengallis, Chavakis and colleagues found that Del - 1 acts as a gatekeeper that thwarts the
movement and accumulation of immune
cells like neutrophils, reducing inflammation.
In Parkinson's the pathways are thought to be out of balance, with interrupted motor
cells causing the debilitating tremors and loss of
movement control symptomatic of the disease.