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Tag: "connections" at biology news

Drug That 'Tags' Decision-making Areas Of The Brain May Aid

...hesebehaviors all result from the formation of new connections betweenindividual neurons or modifications of existing connections in thebrain.“Imaging of nicotine receptors also gives us the potential to study whysome people are m...

Clam embryo study shows pollutant mixture adversely affects nerve cell development

...his enzyme may affect neuraldevelopment and neural connections by activating or inactivating otherproteins.Demonstrating that clam embryos are affected by BCE paves the way foradditional studies that may help explain how exposure to BCE affectshuman nerve cell development and how it might relate to neurologicald...

Study identifies predictors of HIV drug resistance in patients beginning triple therapy

...his enzyme may affect neuraldevelopment and neural connections by activating or inactivating otherproteins.Demonstrating that clam embryos are affected by BCE paves the way foradditional studies that may help explain how exposure to BCE affectshuman nerve cell development and how it might relate to neurologicald...

Alcohol's effects on gene expression in the central nervous system

...dopamine neurons and producing changes in synaptic connections that resemble those that occur in memory and learning. "Learning and memory require enhanced synaptic function between neurons," explained McBride. "Enhanced synaptic function is characterized by increased formation of synaptic proteins. The stimula...

First real-time view of developing neurons reveals surprises, say Stanford researchers

...s or add memories to their overstuffed brains, new connections are required to retain that information. Some diseases also seem to be caused by brain connections not forming normally. Dyslexia, for example, may be caused by connections failing to form between ce...

New insight into people who 'see' colors in letters and numbers

... theorize, by a failure of the "pruning" of neural connections between the areas in the developing brain. The rare condition called synesthesia--in which people's sensory perceptual circuitry seems to be miswired--was long dismissed as an oddity not worthy of scientific study. Now, however, researchers such as ...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

... the fruit fly ?and reported that protein "wiring" connections in one species are often conserved in all three. This first-of-its-kind analysis of three higher level organisms published in the February 8 issue of Proceedings of the National Academy of Sciences supports both the concept of a basic wiring diagram ...

Buying Time Through Hibernation on Demand

...mperature had plunged to 61 F. "Understanding the connections between random instances of seemingly miraculous, unexplained survival in so-called clinically dead humans and our ability to induce ?and reverse ?metabolic quiescence in model organisms could have dramatic implications for medical care," Roth said. ...

U-M team recovers ancient whale in Egyptian desert

...mperature had plunged to 61 F. "Understanding the connections between random instances of seemingly miraculous, unexplained survival in so-called clinically dead humans and our ability to induce ?and reverse ?metabolic quiescence in model organisms could have dramatic implications for medical care," Roth said. ...

Brain-mapping technique aids understanding of sleep, wakefulness

The power of a new technique to map connections among nerve cells in the brain has a UT Southweste...cience. By shedding light on the network of neural connections involved in sleep, he said, his and other studies will help unravel the mechanisms involved in sleep...

Yeast Network Prevents Damage By Oxygen Radicals

...tations in other genes in the network. However the connections we've found might point to new strategies, like dietary supplements, that will alleviate some of the clinical symptoms of human diseases associated with genetic deficiencies of DNA damage responses." ...

Some Brain Cells 'Change Channels' To Fine-tune The Message

...lets the cells fine-tune their messages and adjust connections within the cerebellum, the brain region that controls fine motor skills. Although the cells' channel-changing ability has been recognized for a few years, the key players controlling it hadn't been identified. Now, by studying mice, the Hopkins team...

CoPub Mapper: mining MEDLINE based on search term co-publication

...ication, 150 genes consisting of 8 sets with known connections (same pathway, same protein complex, or same cellular localization, etc.) were run through the program. Receiver operator characteristics (ROC) analyses showed that most gene sets were clustered much better than expected by random chance. To test gro...

Brain-injury rehabilitation depends on acetylcholine circuitry

...of cortical motor representations"--to reestablish connections that control muscles. However, the specific type of brain circuitry on which this plasticity depended was not known. Conner and his colleagues were guided in their experiments by earlier studies showing that the cholinergic system in a region called...

Brain May Be Less Plastic Than Hoped

... the brain, we could speculate that functional new connections mediating reorganization may also be difficult to ...her than the primary visual cortex, new functional connections may have an easier time forming, and axonal sprouting may occur over longer distances.?/p> The s...

Successful Test Of Single Molecule Switch Opens The Door To Biomolecular Electronics

...f these has been the difficulty in making reliable connections with single molecules to test their electronic beh... voltage applied to the molecule is increased, the connections to the molecule will rip electrons out of the molecule, pushing it back into its insulating state. T...

Remote control flies? Fly behavior controlled by laser light

... valuable way to study how nerve-cell activity and connections are related to specific behaviors, from simple movements to more complex behaviors like learning, aggression, and even abstract thought. The ability to control specific groups of neurons without implanting electrodes in the brain or using similarly ...

Some Brain Cells Change Channels

...lets the cells fine-tune their messages and adjust connections within the cerebellum, the brain region that controls fine motor skills. Although the cells' channel-changing ability has been recognized for a few years, the key players controlling it hadn't been identified. Now, by studying mice, the Hopkins team...

Mapping neuron connections in the brain

...0 to 100 billion neurons, and each has hundreds of connections with neighboring neurons. Making sense of these intricate connections is essential to understanding brain function, and the task is a monumental one. Thanks to a new the...

Depression gene may weaken mood-regulating circuit

...ed gene variant showed less gray matter and weaker connections in the mood-regulating circuit. How well the circuit was connected accounted for nearly 30 percent of their anxious temperament, researchers at the National Institute of Health's (NIH) National Institute of Mental Health (NIMH) found. Dr. Daniel Wein...

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