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plasticity in Medical News

Posit Science Co-Founder and Brain Plasticity Pioneer, Michael Merzenich, Speaks at Science Conference in the Netherlands

AMSTERDAM, Netherlands, Dec. 10 /PRNewswire/ -- Michael Merzenich, PhD, a leading research scientist at the University of California and the Chief Scientist of Posit Science Corporation, gave the plenary lecture today at the opening ceremony of a joint conference of the Netherlands Institute for N...

Learning Takes Place When You Get Things Right

...es, not failures, did brain processing and the monkeys' behavior improve." More information The Society for Neuroscience has more about brain plasticity . -- Robert Preidt SOURCE: MIT, news release, July 30, 2009 ...

Generation of a severe memory-deficit mutant mouse by exclusively eliminating the kinase activity of CaMKIIalpha

... and is believed to be an essential mediator of activity-dependent synaptic plasticity and memory functions. However, the causative role of the enzymatic activity...d exclusively lacks its kinase activity. They examined hippocampal synaptic plasticity and behavioral learning of the mouse, and found a severe deficit in both pr...

Most common brain cancer may start in neural stem cells

... can be restored in tumor cells. They are also examining whether inhibiting neural stem cells in the SVZ has promise as a potential therapy. Given the plasticity of these cancer-initiating cells, targeting a single signaling pathway may not be sufficient, says Zhu. This trait adds to the complexity of cancer th...

Most common brain cancer may originate in neural stem cells

... can be restored in tumor cells. They are also examining whether inhibiting neural stem cells in the SVZ has promise as a potential therapy. Given the plasticity of these cancer-initiating cells, targeting a single signaling pathway may not be sufficient, says Zhu. This trait adds to the complexity of cancer th...

How to build a bigger brain

...em to meditation in the first place, Luders said. However, she also noted that numerous previous studies have pointed to the brain's remarkable plasticity and how environmental enrichment has been shown to change brain structure. ...

Mental Stimulation is Not Enough for Brain Fitness

...gram was developed by a global team of neuroscientists from Posit Science, and consists of six exercises. The product is based on the science of brain plasticity - the brain's ability to form new pathways in response to the right kind of stimulation. About Posit Science: Posit Science is the leading ...

Science Zeroes In on New Alzheimer's Drug Target

...e cellular level, overexpressors had fewer synapses and dendritic spines -- that is, fewer connections from one neuron to another -- and less synaptic plasticity overall. On the other hand, mice without HDAC2 had many more of these learning-enhancing brain cell connections. The overarching conclusion, Tsai s...

Five UCSF Scientists Elected to National Academy of Sciences

...in the visual cortex are refined through the action of mechanisms of neural plasticity in combination with specific molecular signals. In lab studies, Stryker's team induces brain plasticity through manipulations of genes or visual experience or by pharmacological o...

Imaging IDs Brain Neurons With Preference for Real Words

...just relevant for theories of reading and reading acquisitions, but also for our understanding of the mechanisms underlying experience-driven cortical plasticity in general," Riesenhuber said. "It will be interesting in future studies to investigate how the specificity of the representation in the VWFA chang...
plasticity in Medical Technology

Brain Training Improves Memory and Attention and the Effects Last

...gram was developed by a global team of neuroscientists from Posit Science, and consists of six exercises. The product is based on the science of brain plasticity - the brain's ability to form new pathways in response to the right kind of stimulation. Marlene Allen, aged 75, of Mill Valley, California parti...

Reprogrammable Cell Type Depends on a Single Gene to Keep Its Identity

...egional lymph nodes. "The new finding adds to a growing body of evidence showing that some fully differentiated cell types can exhibit great plasticity and upon reprogramming revert back to their previous identity," said Guillermo Oliver, Ph.D., a member of the St. Jude Department of Genetics and Tumo...

Novel Mechanism for Long-Term Learning Identified by Carnegie Mellon Researchers

...hat N-methyl-D-aspartate (NMDA) receptors are required to initiate synaptic plasticity in this mechanism, a fact that holds true in many areas of the brain. Indee...g. Using an NMDA antagonist to block NMDA receptors after the initiation of plasticity resulted in enhanced synaptic strengthening, while blocking mGlu receptors ...

Video: New Research Discovers Independent Brain Networks Control Human Walking

... Kennedy Krieger Institute Study Enhances Understanding of Brain plasticity and Motor Skills, Signaling Advancements for Future Rehab Practices BALTIMORE, Aug. 7 /PRNewswire-USNewswire/ -- In a study published in the August...

Pieris Progresses Development of its Proprietary Biotherapeutics Platform: Successful Demonstration of Dual Targeting With Duocalin(R) Technology

... molecular weight of monomeric Anticalins(R) relative to antibodies, their core scaffold provides a highly selective binding site with high structural plasticity and an extensive binding surface comparable to that achieved with antibodies. The adaptability of the Anticalin(R) scaffold has already allowed Pieris...
plasticity in Medical Definition

Depolarization-induced suppression of inhibition

...so widely distributed in the brian. DSI is a very common form of short-term plasticity and thus needs to be mediated by a commonly found neurotransmitter. The use...iated by the endocannabinoids, and may contribute to many forms of cortical plasticity and synaptic strengthening, such as in long-term potentiation (Carlson e...
plasticity in Biological News

Reproductive plasticity revealed: Neotropical treefrog can choose to lay eggs in water or on land

(Boston) When frogs reproduce, like all vertebrates, they either lay their eggs in water or on land with one exception, according to new research by a team of Boston University scientists who discovered a treefrog (Dendropsophus ebraccatus) in Panama that reproduces both ways. The neotropical fr...

Astrocytes and synaptic plasticity

By mopping up excess neurotrophic factor from neuronal synapses, astrocytes may finely tune synaptic transmission to affect processes such as learning and memory, say Bergami et al. The major cellular events of learning and memory are long-term potentiation (LTP) and long-term depression (LTD),...

A new window into structural plasticity in the adult visual cortex

Neuroscientists have known for decades that the adult brain can reorganize neural pathways in response to new experiences, for example, by changing the firing pattern and responses of neurons. But it has remained an open question whether structural changes accompany this functional plasticity. In a...

Stem cell research: From molecular physiology to therapeutic applications

...of the Institute of Zoology at the Chinese Academy of Sciences. He has been studying the mechanism of differentiation and de-differentiation, cellular plasticity and totipotency of pluripotent cells, as well as that of somatic cells. He intends to build various cellular and animal models for human diseases, to ...

Microbes and their hosts -- exploring the complexity of symbiosis in DNA and cell biology

...eview of the impact of symbiotic lifestyle on genetic variation and microbial adaptation is entitled, "Remaining Flexible in Old Alliances: Functional plasticity in Constrained Mutualisms." Adam Silver and Joerg Graf from the University of Connecticut, in Storrs, explore the role of virulence factors and spe...

Placenta-derived stem cells may help sufferers of lung diseases

...em cells are known to be able to engraft in solid organs, including the lungs. Human term placenta stem cells also demonstrate characteristics of high plasticity and low immunogenicity. "The potential application of fetal membrane-derived cells as a therapeutic tool for disorders characterized by inflammatio...

A young brain for an old bee

...orced a subset of these foragers to revert to nursing tasks, they discovered that they learning performance improved again, demonstrating a remarkable plasticity in their brain circuits. "The honey bee is a great model", explains Dr. Scheiner, "because we can learn a lot about social organisation from it and...

NYC science symposium marks Gruber Prize program 10th anniversary

...ssible the replacement or enhancement of brain and spinal cord tissue lost or damaged due to neurodegenerative disease or trauma, will speak on "Brain plasticity and Diversity." Dr. Solomon Snyder, professor in the Department of Neuroscience at Johns Hopkins University Medical School, whose discoveries abou...

Scientists capture the first image of memories being made

...al translation occurs at synapses during long-term plasticity and requires trans-synaptic signals." Long-term memory and synaptic plasticity require changes in gene expression and yet can occ...that mediates this gene expression during neuronal plasticity involves regulated translation of localized mRNA a...

Zebra mussels hang on while quagga mussels take over

...han quagga mussels. According to this model, the zebra mussels show high plasticity, or the ability to adapt to changing environmental conditions. plasticity can be an adaptive characteristic that allows an organism to survive under new conditions. In this case, the new condition is increased flow. Zebra...
plasticity in Biological Technology

Practice makes perfect -- motor memory possible for neuroprosthetic control

...nkeys could immediately perform the task without missing a beat. The ability to switch back and forth between the two decoders shows a level of neural plasticity never before associated with the control of a prosthetic device. "This is a study that says that maybe one day, we can really think of the ultimat...

Animal Eggs Not Suitable Substitutes to Produce Stem Cells

...Cloning and Stem Cells is an authoritative peer-reviewed journal published quarterly in print and online that focuses on understanding developmental plasticity and defining the molecular mechanisms that regulate differentiation or dedifferentiation of nuclei and cells. Tables of contents and a free sample iss...

Researchers Document Rapid, Dramatic 'Reverse Evolution' in the Threespine Stickleback Fish

...omeone who has the same genes but may not have had as good of a diet growing up," Peichel said. "Our findings challenge the primary role of phenotypic plasticity in rapid evolutionary change." The gene that controls for plating is called Eda, which comes in two forms: one causes low plating and the other comp...

JCI table of contents: Dec. 3, 2007

...ay also represent one of the signals telling the brain that it is time to sleep. TITLE: Prolonged wakefulness induces experience-dependent synaptic plasticity in mouse hypocretin/orexin neurons AUTHOR CONTACT: Xiao-Bing Gao Yale University School of Medicine, New Haven, Connecticut, USA. Phone: (203) 7...

Competition for stem cell research is fierce

...xample of a line you dont cross. Ethical concerns were cited as one danger along the way. While embryonic cells are more scaleable and have greater plasticity than stem cells derived from adult sources, continuing opposition from moral objectors has slowed progress of the technology. Cezar again cited Califo...
plasticity in Biological Definition

Long-term potentiation

...kinase cascade: a biochemical signal integration system subserving synaptic plasticity and memory". J Neurochem 76 (1), 1-10. PMID 11145972 ^ PMI...334:33-46. PMID 6306230 Martin SJ, Grimwood PD, Morris RG. "Synaptic plasticity and memory: an evaluation of the hypothesis." Annu Rev Neurosci. 2000;23:...

Phenotype

...physiological and behavioral) determined by an interaction between its genotype and environment (see genotype-phenotype distinction and phenotypic plasticity for a further elaboration of this distinction). The idea of the phenotype has been generalized by Richard Dawkins to include effects on other org...

Synapse

...transmembrane potential of the synapse. It is subject to biological regulation. The variability of synaptic strength is often referred to as synaptic plasticity . One regulatory trigger of synaptic strength involves the simple coincidence sensory stimuli and action potentials in the synaptically linked cell...
plasticity in Biological Dictionary

RNA editing

..., have been observed. ... The Role of RNA Editing in Dynamic Environments" ... RNA editing is an important mechanism for regulating genetic plasticity through ... Substitutional RNA editing employs a variety of genetic mechanisms, the ... Studies of double-stranded RNA binding properties, ...

Genetic assimilation

... special case of a more general ... Masel J. Genetic assimilation can occur in the absence of selection for the ... Nanjundiah, V. Phenotypic plasticity and evolution by genetic assimilation . ... Canalization, genetic assimilation and preadaptation. A quantitative genetic model. ... The ...

Eyespots

...ters. Most Popular. Latest Articles. Add to: iGoogle ... UPDATE: 5/14/07 : Online Butterfly Eyespot Lab Available for Download ! ... Development, plasticity and evolution of butterfly eyespot patterns. Nature. 384:236-242. ... The striking patterns ward off predators. ... Butterflies Have ' Eye Spot...
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