Scientists show how a neuron gets its shape
... destination, dropping anchor and stretching their dendrites
behind them as they crawl away. The work, led by ... found that they form a matrix to which the dendrites
are anchored. Without the matrix to anchor the neuron, the dendrites
didn't form properly.
The two proteins, it ...
Researchers identify toehold for HIV's assault on brain
... become damaged. Instead of sprouting healthy dendrites
projections that resemble tiny trees neurons in ... brain of an HIV patient have had parts of their dendrites
abruptly torn off, in a process known as "synaptic pruning." The dendrites
begin to look like a patch of severely damaged ...
Suckling Infant Triggers 'Trust' Hormone in Moms
Neurons start releasing oxytocin from their dendrites
(the arms that extend outward from the nerve cell ... from their nerve endings when a baby suckles.
had been thought to receive more than transmit ... it appears that the release of oxytocin from the dendrites
increases intra-neuron communication. That leads ...
Scientists learn what's 'up' with a class of retinal cells in mice
... that form a communicative network with other dendrites
and neurons in the brain.
The work, led by ... dendrites. Most retinal neurons distribute their dendrites
evenly around the cell body, but the upward ... directs the cell's function, orienting the dendrites
downward like roots of great trees," says Sanes, ...
RNA-associated introns guide nerve-cell channel production
... which branch from the cell body of the neuron. dendrites
detect the electrical and chemical signals ... protein. In 2005, the Penn group first found that dendrites
have the capacity to splice messenger RNA, a ... RNAs in neurons. Given the central role of dendrites
in various physiological functions they hope to ...
Dynamic molecular mechanism to keep brain activity stable
... newly synthesized synaptic proteins such as PSD-95, and move out them into dendrites
of neurons. In contrast, DHHC2 are located mainly in dendrites
of neurons. Dendritically localized DHHC2 mediates dynamic palmitoylation ...
When It Comes to Memory, It's All About Location
... important role in memory function. The team found that proteasomes in the dendrites
-- the branched parts of a neuron that conduct electrical stimulation -- ... now trying to learn how to block proteasome activity specifically in the dendrites
of mice to increase the strength of synapses and of memory. In their ...
Researchers Map Paths Governing Neuron Function
... the neuron that give rise to axons (which primarily receive signals) or dendrites
(which primarily send signals). This new technology will help improve ... is crucial, as these structures give rise to the specialized axons and dendrites
which relay sensory input and enable us to see, hear, taste, reason and ...
Discovery supports theory of Alzheimer's disease as form of diabetes
... loss of insulin receptors from the surface of neurons specifically on dendrites
to which ADDLs are bound. ADDL binding clearly damages the trafficking of ... absence of insulin receptors on their dendrites, we also found that dendrites
with an abundance of insulin receptors showed no ADDL binding, said ...
New insights into growth factor's role in brain development
... Intriguingly, proBDNF and BDNF encourage different actions; BDNF promotes the differentiation of new neurons and their constituent parts (axons, dendrites
and synapses), and proBDNF the pruning of synapses -- a process that occurs particularly in the early stages of life.
"Our results suggest that ...
Dendrites in Medical Technology
Protein Shown to Play a Key Role in Normal Development of Nervous System
... shortly after birth,
when GluR1 is present on the surface of the cell. As neurons mature, GluR1
is lost from the cell surface of some neurons, and dendrites
Kalb and colleagues showed that suppressing GluR1 activity reduced
dendrite growth, and led to poor development of connections ...
Dendrites in Medical Dictionary
... with adjacent nerve cells at contact points called synapse s. dendrites
are branching structures that extend from the soma. dendrites
may have hundreds or thousands of synapse s that receive signals from ...
Dendrites in Biological News
Protein regulates movement of mitochondria in brain cells
... structure that consist of a main cell body and dendrites
and axons that project out from the cell core and ... Rempe. "They put out enormous arms of axons and dendrites
and they have to keep supplying nutrients and ... which the cell must also push down the axons and dendrites
to provide these parts of the cell with energy, ...
UC Davis researchers visualize formation of a new synapse
"We are the first to observe that neuroligin zips around dendrites
(the branched projections of neurons) before synapses form and can ... the team was able to visualize:
"Axons of one neuron grow toward the dendrites
of neighboring neurons. As they do so, finger-like structures called ...
What makes an axon an axon?
... a dendrite waiting to get out. Hedstrom et al. converted mature axons into dendrites
by banishing a protein crucial for neuron development. The results suggest ... from the axon is still uncertain. Injuries and diseases can transform dendrites
into axons. The findings raise the possibility that these insults could ...
Scientists discover a molecular scaffold that guides connections between brain cells
... cells, a type of neuron that deploys a bushy array of fibers called dendrites
that extend through layers of cerebellar territory. The dendrites
gather signals from many other neurons in the cerebellum and send signals ...
Autopilot guides proteins in brain
... may enable finer control over neurons for basic research or for treatment of neurological disorders. Potentially, scientists could target only dendrites
or axons in a neuron so as to study its outgoing or incoming impulses.
In addition to these potential applications, the study is notable for its ...
Rett Syndrome Research Trust advisor makes significant discovery
... cells in the brain. Glia support and interact with neurons in innumerable ways, from providing the structural underpinnings and guidance of axons and dendrites
(the neuronal processes that carry information), to creating protective insulation for axons. These and other glial functions are essential to the ...
Maintaining the brain's wiring in aging and disease
... down, the neuron will never again contribute to learning and memory, because these 'wires' do not re-grow in the human brain."
But axons and dendrites
are much more than inert fibre-optic wires. They are homes to the world's smallest transport tracks. Every one of our hundred billion nerve cells ...
Rare genetic disorder gives clues to autism, epilepsy, mental retardation
... and TSC2, are inactivated, neurons grow too many axons (the long nerve fibers that transmit signals). Normal neurons grow just one axon and multiple dendrites
(short projections that receive input from other neurons). This specification of axons and dendrites, known as polarity, is crucial for proper ...
MIT IDs proteins key to brain function
... that relays information to other cellsand many shorter dendrites, which receive messages from other cells. The interconnection of these axons and dendrites
is essential to create a functional neural circuit.
In their study, the researchers found that mice without the three Ena/VASP proteins did ...
Brain works more chaotically than previously thought
... by means of little "arms", known as dendrites. dendrites
pass on the electrical impulses to the cell body, ... of axons and ancillary cells. There are no dendrites
or even synapses here. "So it is not a place ... synapses," Dietrich speculates. "Nerve cells and dendrites
are closely packed together here. So the axon ...
Dendrites in Biological Technology
Revealing the regulating mechanism behind signal transduction in the brain
... matter' has yet to divulge all its secrets. For example, we do not yet fully understand how we are able to learn and remember things. We do know that dendrites
and axons − the offshoots of brain cells − play a crucial role by making contact with each other in so-called synapses, through which ...
Nanotube forests grown on silicon chips for future computers, electronics
... Because the catalyst particles are about 10 nanometers in diameter, they allow the formation of tubes of similar diameter.
The branching dendrites
are tipped with molecules called amines, which act as handles to stick to the silicon surface.
"This is important because for heat-transfer ...
Biolistic Transfection of Organotypic Brain Slices
Expression can be detected as early as 8 hours post-transfection and increases
to fill all of the small processes of both the dendrites
and axons of
the neurons by 36 hours (Figure 4). Expression lasts for at least 7 days,
although the end-point of this transient ...
Sex Steroid Regulation of Vasopressin Levels Secreted by hNT Neurons*
... brain activity can be enhanced by estrogen treatment. 8,9
Recent studies have shown that estrogen stimulates mRNA for new growth of axons
and enhances gene expression for acetylcholine production. 10,11
Several studies of menopausal women undergoing estrogen treatment ...
Dendrites in Biological Definition
... which typically are located near the tips of the dendrites
and away from the soma.
were once believed to merely convey stimulation ... of voltage-gated ion channels . In such dendrites
the voltage change that results from ...
... large central part of the cell between the dendrites
and the axon.
The axon , a much finer, ... of cellular extensions. Each neuron has very many dendrites
with profuse dendritic branches. These structures ... receiving network for the neuron.
Axon and dendrites
alike are typically only about a micrometre ...
... Synapses allow nerve cells to communicate with one another through axons and dendrites
, converting electrical signals into chemical ones.
Synapses are specialized junctions through which cells of the nervous system signal ...
Dendrites in Biological Dictionary
are the branched projections of a neuron that ... body, or soma, of the neuron from which the dendrites
project. ... Neurons are the ... of the most important cells in the body. ... dendrites
are much thicker than synapses. ... (Click to ...
... Growth ... ... how the properties of neuronal dendrites
and neural circuits contribute to ... recordings from axons and dendrites
, and recording from multiple ... Definition ... ... dendrite den·drite (děn'drīt') n. ... dendrites
often form within or on the ... Buy Dendrite ...
... autoimmune diseases ... Plasmacytoid dendritic cell (pDC) ... dendrites
are the branched projections of a neuron that act to conduct the ... cells to the cell body, or soma, of the neuron from which the dendrites
project. ... The key function of dendritic cells is that ...
... and its outer membrane becomes the plasmalemma of the progeny cells. ... Where present it was clearly limited to the plasmalemma of dendrites
(Fig 6) ... Labelling was restricted to small segments of the plasmalemma (Fig 6b) ... Peripheral proteins are not attached to the ...