Egg - laying behavior in Aplysia is mediated by a set of peptides, including egg - laying hormone (ELH), which are released by a cluster
of identified neurons, the bag cells.
Not exact matches
When looking into mechanisms that might affect the levels
of SMN protein in
neurons, the researchers scanned a genomic database called the UCSC Genome Browser and
identified two genetic sequences that matched the opposite DNA strand
of the SMN gene.
In a new study published in Cell Reports, scientists at the Gladstone Institutes
identified different types
of neurons in a brain region called the reticular thalamus.
The goal
of early SMA drug discovery programs has been to
identify small molecules that induce the SMN gene to produce sufficient levels
of protein to improve motor
neuron functioning in affected patients.
In a study published in
Neuron, an interdisciplinary team
of University
of Pennsylvania researchers has
identified a new explanation for this phenomenon.
Next, Anderson and his colleagues used a set
of genetic tools to
identify exactly which
neurons were responsible for the effect on aggression and to see if the gene that encodes for Tk also controls aggressive behavior by acting in that cell.
Researchers have
identified the
neurons in monkeys that are dampened by scratching, a finding that could lead to new ways
of alleviating itching in humans.
The ~ 200 GB
of data for each brain was then analyzed with machine learning algorithms that
identify individual
neurons by type, according to parameters «learned» from human experts.
Within the hypothalamus, scientists have
identified two key groups
of neurons that regulate appetite, known as AgRP
neurons and POMC
neurons.
The learning is expressed in the intracellularly recorded activity
of identified motor
neurons mediating three different defensive behaviors: escape locomotion, inking, and siphon withdrawal.
In work published today in The Journal
of Neuroscience, Li and his team
identify a group
of long - range
neurons that extend from the central amygdala.
The researchers also
identified the specific
neuron responsible for detecting high pH. They did this by showing that when a specific sensing
neuron, called the ASH
neuron, was destroyed by laser microsurgery, the worms no longer avoided high pH. Going another step further, the researchers also
identified some
of the proteins involved in the response to high alkalinity, which make up a calcium channel.
Researchers from UC Davis School
of Medicine and Shriners Hospitals for Children — Northern California have
identified a group
of cells in the brain that they say plays an important role in the abnormal
neuron development in Down syndrome.
Duke University biologist Pelin Volkan and colleagues have
identified a set
of genetic control switches that interact early in a fly's development to generate dozens
of types
of olfactory
neurons, specialized nerve cells for smell.
By tweaking different fly genes and counting how many
neuron types were produced as the flies matured, the team
identified a network
of five genes that work together like coordinated control switches to guide the precursor cells» transformation to mature
neurons.
Recently, Prof. Yoko Yazaki - Sugiyama and Dr. Shin Yanagihara from Okinawa Institute
of Science and Technology Graduate University (OIST) have, for the first time,
identified the
neurons in the brain that are associated with the auditory memory
of the father's song in zebra finches, which could lead to insight into human speech development.
Identifying changes in the mitochondrial DNA in PPN cholinergic
neurons has the potential to allow the development
of more effective treatments targeted to specific cell - types.
Red staining on a section through the forebrain
of a mouse
identifies the
neurons that carry sensory information directly into primary areas.
The continuation
of this line
of research is opening new avenues to
identify what specific signals are used to promote this increased neurogenic response, with views focused in targeting neurogenesis as a therapeutic approach to promote the regeneration
of lost
neurons.»
«These three findings
identify for the first the
neurons and connections that underlie the Gate Control Theory
of pain,» sums up Zeilhofer.
Using machine learning algorithms, they
identified which parts
of the data seemed to be the timing control signal between the prefrontal cortex and the amygdala and zeroed in on the individual
neurons involved in that circuit.
In a paper published June 11 in the early - online edition
of Neuron, researchers at the Buck Institute for Research on Aging and the University
of California, Berkeley have
identified a serotonin receptor, HTR7, as a key mediator
of eczema and other forms
of itch.
We obtained intracelllular recordings from
identified gill motor
neurons in the abdominal ganglionz
of a semi-intact preparation
of Aplysia wlhile we simultaneously recorded behavior responises
of the gill.
Described in the January 7th issue
of Neuron, the technique uses «deep,» highly sensitive whole - genome sequencing
of single
neurons and a new technology that
identifies inserted bits
of DNA caused by retrotransposons, one
of several kinds
of so - called somatic mutations that can arise as the brain develops.
By obtaining simultaneous intracellular recordings from both the sensory
neurons and one
of the main
identified motor
neurons, we have been able to reduce the reflex to its monosynaptic components.
In a paper published in the journal
Neuron, researchers at Beth Israel Deaconess Medical Center (BIDMC)
identified specific neural circuitry responsible for rousing the brain
of mice in simulated apnea conditions.
Using the firing patterns
of just five
of any patient's
neurons, the system
identified the person as a responder or nonresponder with 92 percent accuracy.
Belgian researchers have
identified a new strategy for treating an inherited form
of dementia after attempting to turn stem cells derived from patients into the
neurons most affected by the disease.
Basel scientists have now
identified a network
of genes that controls fundamental properties
of neurons and is important for human brain activity, memory and the development
of schizophrenia.
Previous studies have
identified neurons that only fire up when an animal points its head in a certain direction — some for east, others for south, for example — but reports
of neurons that respond to changes in an animal's speed are sparse and largely anecdotal, says Jeffrey Taube, a neuroscientist at Dartmouth College who was not involved in the work.
In order to
identify genes specific for the sensory
neurons of Aplysia, a miniaturized differential screening method based on the polymerase chain reaction and applicable to small amounts
of tissue was used.
Their end goal is to
identify specific populations
of neurons in the fruit fly brain that are necessary for emotion primitives — and whether these functions are conserved in higher organisms, such as mice or even humans.
But while the areas
of the brain involved in estimating spatial orientation have been
identified for some time, until now, no one has been able to either show that distinct
neurons signaling «sensory conflicts» existed, nor demonstrate exactly how they work.
His laboratory implicated endocannabinoids in axon guidance and
identified the molecular substrates
of Δ9 - tetrahydrocannabinol action in developing
neurons.
With simultaneous anatomical stainings they also
identified which
of these
neurons sent their projections to the more remote secondary somatosensory area and the motor cortex, respectively.
Even before the recent genome work, researchers had characterized some
of the components
of black widow venom,
identifying two seemingly unique families
of proteins: latrotoxins, which act on
neurons; and latrodectins, whose role in venom remains unclear.
Now that the biologists had
identified one site — out
of many — housing
neurons that activated selectively for social encounters, they listened in on the goings - on by placing very fine electrodes in proximity.
«Since researchers can often
identify several object - selective
neurons within a single patient, multiple novel pairings
of objects can be studied,» author Dr. Andrey Vyshedskiy explains.
The group has already
identified several candidate molecules which activate GDNF receptors in immortalized cells and shown that one
of them promoted survival
of dopamineric
neurons in vitro.
University
of Queensland researchers have
identified a potential treatment to delay motor
neuron loss and symptoms in the inevitably fatal motor
neuron disease (MND).
Blue corresponds to cell nuclei, and green to fluorescence emitted by a green - fluorescent protein that
identifies neurons having received the virus that can genetically abolish the expression
of lipoprotein lipase protein.
«While the genetic cause
of this devastating disease has been
identified, our study describes how mitochondrial dysfunction might contribute to motor
neuron destruction even before the onset
of symptoms,» said Ma.
In this study, Xu and colleagues
identified a neural circuit where a group
of serotonin
neurons project to and activate dopamine
neurons.
The findings, published in the Proceedings
of the National Academy
of Sciences Early Edition this week,
identify a switch that occurs in
neurons within the hypothalamus.
Researchers at University
of California San Diego School
of Medicine, with colleagues at the National Institute
of Diabetes and Digestive and Kidney Diseases, the University
of Manitoba and St. Boniface Hospital Albrechtsen Research Centre in Canada, have
identified a molecular signaling pathway that, when blocked, promotes sensory
neuron growth and prevents or reverses peripheral neuropathy in cell and rodent models
of type 1 and 2 diabetes, chemotherapy - induced neuropathy and HIV.
In the featured article published online on April 5 in
Neuron, the researchers also conclude that potential treatments targeting the transport disruptions they
identified in Huntington's disease
neurons may also work for other neurodegenerative diseases, such as ALS and forms
of dementia.
A specific kind
of neuron found only in male mice and that detects a pheromone in female urine has been
identified by researchers at Washington University School
of Medicine in St. Louis.
They have
identified the group
of neurons in the brain that determines how a mouse responds to stress — whether with resilience or defeat.
Why the disease has such a wide range
of effects isn't completely understood, but in recent years a potential cause — the loss
of hormone - producing
neurons, possibly through an autoimmune response — has been
identified.
To start, the scientists examined previous experiments and
identified several transcription factors — managerial proteins that switch on the activity
of large sets
of genes — that seemed crucial to the ability
of immature
neurons to develop into adult sensory
neurons.