Navigation Links
Flies on speed offer insight into the roles of dopamine in sleep and arousal

Methamphetamine, the drug of choice for long-distance truckers and college students pulling all-nighters, appears to do a similar trick for fruit flies, too. This finding is one of several in a new study that demonstrates a critical role for the neurotransmitter dopamine in the modulation of sleep, wake, and arousal states.

The work is reported by Dr. Ralph Greenspan and colleagues at The Neurosciences Institute in San Diego.

The researchers found that long, sleepless nights, heightened locomotor activity, frenetic brain activity, and frenzied (but ultimately ineffective) courtship behavior are all characteristics of fruit flies on methamphetamine, the effects of which are known to act through the neurotransmitter dopamine. In the new work, the researchers showed that genetically engineered flies whose dopamine cells could be turned off experimentally, or flies that have received dopamine inhibitors, show converse behavioral effects to those seen in normal flies that have ingested methamphetamine. The results suggest that the right balance of dopamine is necessary for proper brain functioning, as has been seen in human studies of attention and distraction. Dopamine has been implicated in numerous aspects of brain function in humans and other animals, and many of these brain functions involve the modulation of neuronal activity and the ability to assign proper saliency (or relevance) to sensory stimuli.


'"/>

Source:Cell Press


Page: 1

Related biology news :

1. Flies dont buzz about aimlessly!
2. Sleepless for science: Flies show link between sleep, immune system in Stanford study
3. First atlas of key brain genes could speed research on cancer, neurological diseases
4. Influenza vaccine uses insect cells to speed development
5. Rabies spread speeds up
6. New technique may speed DNA analysis
7. Scientists discover gene that controls speed of tuberculosis development
8. Stressed cells spark DNA repair missteps and speed evolution
9. UW scientists report a new method to speed bird flu vaccine production
10. Agreement will speed research on microbicides for women
11. Treating populations infected with HIV and latent TB could speed the emergence of drug-resistant TB
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Flies speed offer insight into the roles dopamine sleep and arousal

(Date:12/11/2014)... , Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced ... India 2015-2019" report to their offering. ... market is the adoption of multimodal biometric systems. ... of an individual for verification and identification purposes. ...
(Date:12/10/2014)... 2014  Wake Forest Baptist Medical Center today announced plans ... of Medicine. Funding for this $50 million capital project ... be publicly launched next summer. The ... 60 series R.J. Reynolds Tobacco Company complex, adjacent to ... immediately with plans to be ready to welcome medical ...
(Date:12/5/2014)... -- Tute Genomics, a leader in cloud-based solutions for genome ... led by UK-based Eurovestech. Peak Ventures and a number ... "We are at a pivotal time in ... seeks new approaches for the diagnosis, treatment and prevention ... and CEO of Tute Genomics. "One of the main ...
Breaking Biology News(10 mins):Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 2Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 3
... a soil science professor at the University of Guam, has ... use in shielding the reefs in Pago Bay from the ... major health hazards facing Guam,s reefs is soil erosion resulting ... up a reef system. "Vetiver,s ability to tolerate high stress ...
... fog, tennis shoes, chocolate mousse, and proteins have something in ... of research that explains the behavior of a wide variety ... and a number of biological materials. In the ... made of (Springer), Roberto Piazza, professor of condensed matter physics, ...
... in their personal and professional lives, University of ... gain greater control over their thoughts with real-time ... first investigation of how real-time functional Magnetic Resonance ... for higher-order thoughts, including introspection, affects our ability ...
Cached Biology News:Bioengineering with vetiver grass on Guam 2Soft matter -- the stuff that dreams are made of 2People control thoughts better when they see their brain activity: UBC study 2
(Date:12/17/2014)... Washington, USA (PRWEB) December 16, 2014 ... Baum, manager at Philipps- Universität Marburg’s Department of ... and photonics, in the newly released SPIE ... “And never be too shy to ask questions.” ... (science, technology, engineering, and mathematics) occupations ranging from ...
(Date:12/17/2014)... Dallas, Texas (PRWEB) December 17, 2014 ... research on Global Quartz Tubing industry. For an ... information, definition, classification, application, industry chain structure, industry ... domestic quartz tubing industry has witnessed ... through a number of acquisitions. This report mentions ...
(Date:12/17/2014)... Texas , Dec. 16, 2014  Vermillion, Inc. ... focused on gynecologic disease, today announced the next step ... a premier bio-analytics solutions provider with the naming of ... President and Chief Executive Officer, while current Chairman of ... continue to serve as Chairman. These changes are effective ...
(Date:12/17/2014)... 2014   Synageva BioPharma Corp. (NASDAQ: ... for rare disorders, announced today its presentation at the ... San Francisco, CA. ... will present on Monday, January 12, 2015, at 9:00 ... webcast live and may be accessed from the "Webcasts ...
Breaking Biology Technology:Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 32020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4
... 2011 Verenium Corporation (Nasdaq: VRNM ), ... industrial enzyme solutions, today announced that James Levine, Executive ... the upcoming Piper Jaffray Sixth Annual Clean Technology & ... 3:00 p.m. EST on Wednesday, January 12, 2011 and ...
... , WEST LAFAYETTE, Ind. - Researchers are creating a ... natural photosynthetic systems in plants by using carbon nanotubes ... and reducing cost. "We,ve created artificial photosystems using ... to electrical power," said Jong Hyun Choi, an assistant ...
... and BUDAPEST, Hungary, Jan. 4, 2011 The IP ... property research and analysis solutions, and ChemAxon, the leader ... announced a strategic partnership whereby Thomson Reuters is providing ... patent data to users of ChemAxon,s JChem chemical software ...
Cached Biology Technology:Verenium to Present at Piper Jaffray Sixth Annual Clean Technology & Renewables Conference 2Verenium to Present at Piper Jaffray Sixth Annual Clean Technology & Renewables Conference 3New solar cell self-repairs like natural plant systems 2Thomson Reuters and ChemAxon Partner to Help Speed Drug Discovery for Life Science Researchers 2Thomson Reuters and ChemAxon Partner to Help Speed Drug Discovery for Life Science Researchers 3
IHC Select Anti-p53, prediluted,wild & mutant, a.a. 19-26, clone DO-7 Immunogen: Human p53 Available Date: 37775...
Feline Rhinotracheitis Virus...
Rabbit polyclonal to Survivin DEx3 ( Abpromise for all tested applications). entrezGeneID: 332 SwissProtID: O15392...
Rabbit Anti-conjugated Agmatine Polyclonal Antibody...
Biology Products: