Not exact matches
That's because the brain is involved, and —
as an astoundingly complex network of 100 billion
cells and their 100 trillion
connections — the organ does not easily loose its secrets.
As recently as a few years back, researchers suggested there was a connection between brain cancer and cell - phone usag
As recently
as a few years back, researchers suggested there was a connection between brain cancer and cell - phone usag
as a few years back, researchers suggested there was a
connection between brain cancer and
cell - phone usage.
There was no cable
connection in Samsonville, and no
cell service there
as well.
The research, published and featured in the Spot Light section of the December edition of the Journal of Virology, examines a previously unknown
connection between flaviviruses — a classification of viruses that include West Nile virus, Dengue virus and tick - borne encephalitis virus — and organelles (a specialized subunit within a
cell) known
as peroxisomes that help coordinate the body's immune responses.
The physical
connection between mother and fetus is provided by the placenta, an organ, built of
cells from both the mother and fetus, which serves
as a conduit for the exchange of nutrients, gasses, and wastes.
As long as the drone has a cell signal, a Wi - Fi connection, and juice in the batteries, it could stay on missio
As long
as the drone has a cell signal, a Wi - Fi connection, and juice in the batteries, it could stay on missio
as the drone has a
cell signal, a Wi - Fi
connection, and juice in the batteries, it could stay on mission.
There was another intriguing
connection: Acinetobacter are molecular mimics of proteins found in myelin, the nerve
cell coating that the immune system attacks in MS.. That suggests the bacteria might trigger immune attacks that hit myelin, too,
as when soldiers who inadvertently resemble the enemy get hit by friendly fire.
In a developing fetus, she surmised, those phone calls would reach groups of nerve
cells in the LGN;
as their synaptic
connections with the retinal neurons strengthened, the LGN neurons would begin forming «area codes» of their own.
Using fluorescent antibodies designed specifically to light up the receptor in mice, the investigators observed it on vagus nerves, which serve
as a main biochemical
connection between airway
cells and the brain.
The same information can be represented
as lines on paper,
as electrical charges inside a PC's memory banks or
as the strength of the synaptic
connections among nerve
cells.
GLP - 1 receptors are also found in the brain, and prior research has shown that activating them can boost the function of dopamine
connections, act
as an anti-inflammatory, improve energy production, and switch on
cell survival signals.
Potentially explaining why even healthy brains don't function well with age, Salk researchers have discovered that genes that are switched on early in brain development to sever
connections between neurons
as the brain fine - tunes, are again activated in aging neuronal support
cells called astrocytes.
Scientists describe these infectious
connections as virological «synapses» because they resemble the way that
cells of the nervous system or the immune system communicate through intimate
cell - to -
cell connections.
The results show that the transplanted stem
cells act
as a «bridge» which allows injured sensory nerve fibers to grow into the spinal cord, rebuild functional nerve
connections, and thereby achieve long term restoration of major parts of the lost sensory functions.
The new
connections can allow these
cells to operate at solar concentrations of 70,000 suns» worth of energy without losing much voltage
as «wasted energy» or heat.
And researchers must figure out how to build in some core features: the necessary blood vessels, immune - system
cells called microglia and
connections from other brain regions, such
as the thalamus and cerebellum.
The noisy channel framework predicts that
as speech becomes more difficult to hear — like on a poor
cell phone
connection — we should rely more on our expectations.
At a symposium at The American Society of Human Genetics here last month, they reported zooming in on the genes expressed in a single brain
cell,
as well
as panning out to understand how genes foster
connections among far - flung brain regions.
A renowned neuroscientist sees ideas of selection
as describing the honing of
connections among brain
cells.
Moser demonstrated a number of changes in the strength of
connections between nerve
cells — a phenomenon called synaptic plasticity — in the hippocampus
as rats stored information in their long - term memory.
She hopes to pinpoint which genes are expressed in each
cell type when brain
cells make long distance
connections, and to make similar maps in other primates to chart what changed
as brains rewired over the course of evolution.
For a damaged nerve to regain function, its long, signal - transmitting extensions known
as axons need to grow and establish new
connections to other
cells.
If he drives CaMKII above the normal limit while the animal is actively remembering an experience, the memory simply vaporizes,
as the
connections between the
cells suddenly weaken.
In fact, TBK1 may also be a contributor to debilitating diseases such
as ALS (Lou Gehrig's disease) and childhood herpes simplex virus encephalitis, if its
connection with ICOS somehow triggers B
cell activation and specific antibody production against the body's own
cells in ALS or an excessive response to the invading viruses in childhood encephalitis.
Researchers from Hiroki Taniguchi's lab at the Max Planck Florida Institute for Neuroscience (MPFI) published a study in eNeuro in May 2017 showing for the first time that a unique type of inhibitory interneuron called chandelier
cells — which are implicated in several diseases affecting the brain such
as schizophrenia and epilepsy — seem to develop their
connections differently than other types of neurons.
As children, our brains produce too many
connections between
cells.
As recently as this past May 17, Time magazine reported that despite numerous studies finding no connection between cell phones and cancer, «a growing band of scientists are skeptical, suggesting that the evidence that does exist is enough to raise a warning for consumers — before mass harm is done.&raqu
As recently
as this past May 17, Time magazine reported that despite numerous studies finding no connection between cell phones and cancer, «a growing band of scientists are skeptical, suggesting that the evidence that does exist is enough to raise a warning for consumers — before mass harm is done.&raqu
as this past May 17, Time magazine reported that despite numerous studies finding no
connection between
cell phones and cancer, «a growing band of scientists are skeptical, suggesting that the evidence that does exist is enough to raise a warning for consumers — before mass harm is done.»
First the oocyte constructs the scaffolding of
connections known
as microtubules, which allow molecules to move around inside the
cell.
«Just
as the
connection between two
cell phones can become clouded with static and must be filtered, we have implemented a technique that cleans up the «static» in entangled systems.»
«The bone lining
cells also make sense
as gatekeepers or mediators for the effect of the bound hormone because of their position on the bone and their
connection to the other bone
cells,» says Erben.
Though much is known about the cellular and molecular components of the clock, the
connections that link clock
cells to overt behaviors, such
as rest / activity behavior, have not been identified.
The UMass Amherst teams knew from previous studies that Geobacter grow electrically conductive filaments known
as microbial nanowires, which can transport electrons outside the
cell to make electrical
connections with minerals, electrodes or other
cells.
The Purkinje
cells, a class of neurons located in this region, are a major site of information integration that regulate changes in neural
connections caused by varying factors such
as behavior, environment, and emotions.
He and his collaborators were able to show, for example, that during swimming, motor signals move down the body through muscle
cells themselves
as well
as through nerve
connections, by selectively blocking sections of its musculature and nervous system.
Further tests — such
as injecting the
cells into mouse or chick embryos to see if they establish proper
connections — will be needed to see if they are full - fledged neurons.
«We also noticed an accumulation of debris of interneurons — the
cells that serve
as a
connection between sensory and motor pathways for reflexes — in the hippocampus, which is responsible for memory storage.»
The researchers believe their findings offer evidence that memory storage does not rely on the strengthening of
connections, or «synapses,» between memory
cells,
as has long been thought.
Disruptions to these nerve
cell connections are also believed to cause neurodegenerative diseases such
as Alzheimer's and Huntington disease.
«I found this to be a shocking idea; that you could take, in that case, fetal
cells and inject them into an organ
as complicated
as the brain and expect them to make
connections,» he said.
Both microRNA families have the
connection to drug resistance
as well
as to cancer stem
cells, sub-population of cancer
cells that have self - renewal properties and the ability to give rise to new tumors that are more resistant to current therapy.
When the researchers modeled the effects in mice, they found it strengthened the
connections between neurons that make learning possible — what is known
as synaptic plasticity — by increasing the action of a
cell receptor critical to forming memories.
Overton studied the elaborate structures on the surfaces of
cells in order to understand how single
cells established and maintained
connections with their partners
as they matured to form different types of tissues in the developing embryo.
This result, which shows the extent to which the integration between nerve
cells and these synthetic structures is stable and efficient, highlights the great potentialities of carbon nanotubes
as innovative materials capable of facilitating neuronal regeneration or in order to create a kind of artificial bridge between groups of neurons whose
connection has been interrupted.
The prize committee noted his radial unit hypothesis, which stated that in the developing cerebral cortex the
cells are created at the base of each column, each new
cell migrates past its predecessors, and the related «protomap» hypothesis on external signals determining
cell function
as it grows and forms complex
connections.
CD4 + T
cells transfer HIV through
connections called virological synapses that require interactions between several
cell membrane proteins, such
as ICAM - 1 and LFA - 1.
The three scientists assembled small aggregates of nerve
cells, known informally
as «mini-brains,» and used them to study how specific groups of neurons in the brain find each other and establish
connections.
The human brain contains
as many
as 100 billion neurons, most of which make hundreds to thousands of synaptic
connections with specific target
cells.
One of the precursors to Alzheimer's disease, which attacks the brain's nerve
cells, is a loss of smell, so understanding this
connection to olfactory nerve
cells could perhaps serve
as a diagnostic tool and perhaps unlock a deeper understanding of the degenerative disorder.
And within the brain the synapse maps are constantly being revised and rearranged
as the
cells make new
connections and break others.
Describing the brain
as a big circuit board in which each new experience creates a new circuit, Hopkins neuroscience professor Richard Huganir, Ph.D. says that he and his team found that during emotional peaks, the hormone norepinephrine dramatically sensitizes synapses - the site where nerve
cells make an electro - chemical
connection - to enhance the sculpting of a memory into the big board.