Navigation Links
New study: Even in flies, enriched learning drives need for sleep
Date:6/23/2011

Madison, Wis. Just like human teenagers, fruit flies that spend a day buzzing around the "fly mall" with their companions need more sleep. That's because the environment makes their brain circuits grow dense new synapses and they need sleep to dial back the energy needs of their stimulated brains, according to a new study by UW- Madison sleep researchers.

Researchers saw this increase in the number of synapses -- the junctions between nerve cells where electrical or chemical signals pass to the next cell -- in three neuronal circuits they studied. The richer "wake experience" resulted in both larger synaptic growth and greater sleep need.

The study, published today in the journal Science, provides structural evidence for the theory that "synaptic homeostasis" is one of the key reasons all animals need sleep. Researchers Dr. Daniel Bushey, Dr. Giulio Tononi and Dr. Chiara Cirelli of the Wisconsin Center for Sleep and Consciousness also looked at the role the gene implicated in Fragile X syndrome plays in re-normalizing the brain during sleep.

In one experiment, researchers took young fruit flies that spent the first days of their lives alone in single tubes too small to allow flying. Then they released them in groups into a large lighted chamber that allowed them to fly around together for their 12-hour day.

All the flies grew more synapses while they were awake for several hours, the research showed. But this was especially true for the flies in the enriched environment, which grew new branches with many new synapses. After their mall visit, the flies were put back into the single tubes and slept much longer for at least one day. Their synapses returned to normal size after sleep.

Those flies that visited the mall, but were deprived of sleep, continued to have synapses that were larger and denser.

"Sleep prunes back the new synapses; you have to create space for synapses to grow again or you can't
'/>"/>

Contact: Dian Land
dj.land@hosp.wisc.edu
608-261-1034
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Penn study: Transforming nanowires into nano-tools using cation exchange reactions
2. Study: Medicare Covers Only Half the Cost of Administering Chemotherapy to Seniors with Cancer
3. New Study: Lp(a) Joins LDL as Heart Disease Risk Factor
4. Study: Era of Rapid Growth in Biomedical Research Over
5. Study: Meaningful improvements Using Gene Therapy in Parkinsons Disease
6. Reportlinker Adds Case Study: Personalized Cancer Therapy - The era of biomarker identification and companion diagnostic co-development
7. SACHEM Launches 2-D HPLC e-Learning Program : New e-Learning Program Teaches Scientists How to Better Analyze and Prove Product Purity Through Greater Sensitivity and Precision in Identification of Trace Components
8. Glen C. Williams Joins eLearning Sales Team for Simbionix, Heading up Chicago Office
9. Pearson Foundation Supports Incoming LSU Biology Students With 21st Century Learning Tools
10. Sparta Systems TrackWise(R) Solution Delivers Workforce Training and Learning Initiatives for Cangene Corporation
11. Tata Interactive Systems Initiates Vertical-Focused Learning Solutions for Health Care, Pharmaceutical, and Biotechnology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... Vernon Hills, IL (PRWEB) January 15, 2014 ... Cole-Parmer to find hard-working items for the lab, from ... designated as Guaranteed-in-Stock (GIS)—ready to ship when you order. ... Masterflex® Peristaltic Pumps , from the L/S® model ...
(Date:1/15/2014)... 15, 2014 ­ RedBrick Health , a fast-growing ... today announces that EmblemHealth , the ... is now providing the RedBrick Compass health assessment, combined ... all of its members. EmblemHealth is among the first ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 More than ... and about 1 in 3 seniors will die with ... ). These jaw-dropping figures have shocked many Americans into ... hopefully, help prevent these tragic age-related cognitive disorders. Jonathan ...
(Date:1/15/2014)... DTS Language Services, Inc . is pleased to announce ... organizations who need document translations. Clients will now have ... in advance with a selection of nearly 50 life science ... critical factor in clinical and scientific fields, and decrease the ...
Breaking Biology Technology:Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Biohack Pure Offers 5 Tips for Increasing Memory in 2014 2DTS Improves Efficiency for Life Science Document Translations 2
... Researchers have completed the first thorough, system-level assessment ... of microbes known as Shewanella. Microbes belonging to ... and cleaning up contaminated areas in the environment. ... Institute of Technology, Michigan State University and the ...
... ... , ... The Honolulu-based Pacific Health Research Institute (PHRI) has received $2.8 million in research funding ... a major lung cancer screening study in Hawaii, for two more years. , , , ...
... , , BOTHELL, Wash., ... a leading developer, manufacturer, and marketer of biopreservation tools for ... BloodStor biopreservation media product platform. The product family includes ... as well as other variants for peripheral blood derived stem ...
Cached Biology Technology:Hidden diversity in key environmental cleanup microbes found by systems biology assessment 2Hidden diversity in key environmental cleanup microbes found by systems biology assessment 3Pacific Health Research Institute Awarded $2.8 Million in Research Funding 2Pacific Health Research Institute Awarded $2.8 Million in Research Funding 3BloodStor(TM) Stem Cell Biopreservation Media Platform Launched by BioLife Solutions 2BloodStor(TM) Stem Cell Biopreservation Media Platform Launched by BioLife Solutions 3
(Date:4/17/2014)... such as heart disease, epilepsy and pain, making them ... is still much scientists do not know about the ... into the structure of sodium channels and, specifically, one ... responsible for ,fine-tuning, the activity of the channel. The ... the Journal of Biological Chemistry . , Nerves ...
(Date:4/17/2014)... journal Current Biology on April 17 have ... The Brazilian insects, which represent four distinct but related ... first example of an animal with sex-reversed genitalia. ... different animals, Neotrogla is the only example ... Kazunori Yoshizawa from Hokkaido University in Japan. , During ...
(Date:4/17/2014)... process whereby the genetic information of DNA is ... which have numerous different functions in living organisms. ... during gene expression, by relating the genetic information ... manufacturing proteins. , By examining the different ... an organism at a given time, researchers can ...
Breaking Biology News(10 mins):Structure of sodium channels different than previously believed 2In sex-reversed cave insects, females have the penises 2Rapid and accurate mRNA detection in plant tissues 2
... the quality of life of human beings, and society ... Onaindia, biologist and person responsible for the Forest Ecology ... the Basque Country (UPV/EHU). This group has been investigating ... the Basque Country (CAV-EAE) for twenty years now. In ...
... the oceans as a result of increasing levels ... on marine ecosystems, according to Michael Maguire presenting ... in Edinburgh this week. Postgraduate researcher Mr ... experiments in which they simulated ocean acidification as ...
... Tiny chemical sensors implanted into patients could help diagnose disease ... Researchers have developed tiny probes comprising gold-coated particles. These can ... monitored remotely using light from a laser. Once ... to it is absorbed then re-emitted, causing nearby proteins in ...
Cached Biology News:The forests of the Basque Country are progressing -- slowly, according to research group 2The forests of the Basque Country are progressing -- slowly, according to research group 3
This depletion cocktail is tailored to deplete IgE-bearing (I.e. basophils and mast cells) from whole blood...
... of DNA from agarose gels The SpinPrep Gel ... 150 bp to > 12,000 bp in size from ... the gel slice, followed by adsorption of the DNA ... After a wash step, the purified DNA is eluted ...
This kit is designed to select cells labeled with fluorescein isothiocyanate- (FITC-) conjugated antibodies. Kit includes reagents for labeling 3 x 10 9 cells and EasySep magnet....
... microscope is described by end-users to be ... the fundamentals of light microscopy and electronic ... footprint, it does not require much space ... busy lab environment. The DM-BA300 combines Motic's ...
Biology Products: