Navigation Links
Gallo Center scientists identify key brain circuits that control compulsive drinking in rats
Date:7/22/2013

hs per year.

The drinking rats showed a notable increase in the NMDA receptor (NMDAR), which lead author Taban Seif, PhD, a Gallo Center researcher, called a molecule that excites the brain. When the rats were injected with an NMDAR blocker, their consumption of quinine-laced alcohol dropped significantly, while regular alcohol use was unaffected. In other words, only the compulsive drinking was affected, said Seif.

The team then focused its research on connections from two specific regions of the rats prefrontal cortex where they had discovered the presence of unusual types of NMDARs: the medial prefrontal cortex, which mediates conflict during decision-making, and the insula, which is critical for self-awareness and feelings. In a non-addict, these brain areas tell you when something is potentially harmful and bad, and to run away as fast as possible, said Hopf. But if youre a compulsive drinker, it seems instead that they give you a comforting pat on the back, in effect telling you its OK to have another drink, nothing to worry about.

Using a technique called optogenetics, the scientists inserted halorhodopsin, a light-sensitive protein, into these areas. They then used fiber-optic cables implanted in the rats brains to send pulses of laser light that activated the halorhodopsin, which in turn inhibited the regions connections to the nucleus accumbens. The researchers found that rats inhibited in this way drank significantly less quinine-laced alcohol, while their intake of regular alcohol solution remained unaffected.

The fact that we reduced the rats compulsive drinking using two different methods an NMDAR blocker and direct inhibition of connections tells us that we have probably identified the right areas, said Hopf.

The next logical step for the research team, said Hopf, would be to work with clinical researchers on an NMDAR blocker trial in human subjects.

What is interesting is t
'/>"/>

Contact: Jeffrey Norris
jeff.norris@ucsf.edu
415-502-6397
University of California - San Francisco
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. BGI and Association of Czech genetic centers announce opening of a joint prenatal test facility
2. UChicago Celiac Disease Center to host international symposium
3. MIT and Wilson Center receive NSF grant to develop synthetic biology research agenda
4. Emory, Georgia Tech receive first human exposome center grant in US
5. U-M Water Center awards $570K in Great Lakes restoration grants
6. NSF approves planning grant for Center for Advanced Research in Drying
7. Center for Clinical and Translational Science awards new pilot grants
8. University of Maryland Medical Center launches genetic-testing program for cardiac patients
9. Intermountain Medical Center reseachers develop new 3-D technology to treat atrial fibrillation
10. NYU Langone Medical Center researcher named Howard Hughes Investigator
11. Scientists discover how brains auditory center transmits information for decisions, actions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Inc. , a market leader of iris-based identity authentication solutions, ... the new role of Senior Vice President of Mobile and ... platforms and wearable solutions for EyeLock,s technologies. Gerber brings more ... industry to his role at EyeLock, with expertise in human ...
(Date:12/22/2014)... Dec. 22, 2014  The 2014 Holiday Season may be ... Market Intelligence reports that the long anticipated floodgates for ... intensifying demand for smart phones, tablets, and wearable mobile ... of 2.5 billion users with nearly 4.8 billion biometric ...
(Date:12/17/2014)... 2014 Research and Markets ( http://www.researchandmarkets.com/research/s6qzt5/samsung_galaxy_s5 ) ... S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis" ... http://photos.prnewswire.com/prnh/20130307/600769 Based on a totally ... for the first time a fingerprint sensor in its ...
Breaking Biology News(10 mins):EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2
... in molecular targeting, translational cancer research and cancer ... 17,000 scientists from around the world gather at ... the 2008 Annual Meeting of the American Association ... the meeting will include late-breaking clinical trial findings ...
... plant withers unproductively or thrives in salty conditions may ... mechanism that controls salt tolerance has been found in ... collaborating with an international team. Complex-N-glycan, a ... previously thought to have no helpful function for plant ...
... A. Strobel, Professor of Molecular Biophysics and Biochemistry, ... Award. The award is given by American ... outstanding scientific contributions made by young researchers early ... award lecture, titled Three Views of RNA Catalysis: ...
Cached Biology News:AACR annual meeting showcases developments in understanding and targeting cancers 2AACR annual meeting showcases developments in understanding and targeting cancers 3Salt-tolerant gene found in simple plant nothing to sneeze at 2Yale University's Strobel recognized for work on RNA 2
(Date:1/22/2015)... January 22, 2015 Shimadzu Scientific ... UV-1280 multipurpose UV-visible spectrophotometer. Offering wavelength scanning from ... is ideal for applications in a variety of ... , The user-friendly UV-1280 enables intuitive operation, while ...
(Date:1/22/2015)... Cambridge Semantics, the leading provider of smart data ... was a record-breaking year across the board for the company. ... Data Platform and our Smart Data solutions, our customers were ... which led to record growth for the company in 2014,” ...
(Date:1/22/2015)... California (PRWEB) January 22, 2015 Pipette.com ... Offer to their comprehensive portfolio of Eppendorf products. ... customers to purchase a Centrifuge 5424/5424 R and receive ... of either Eppendorf Research plus or Eppendorf Reference 2 ...
(Date:1/22/2015)... Switzerland (PRWEB) January 22, 2015 Selexis ... characterized mammalian Research Cell Banks (RCBs) used for drug ... Research Cell Banks will include Next-Generation Sequencing ... genetic architecture de-risks biologic manufacturing by ensuring the integrity ...
Breaking Biology Technology:Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2Cambridge Semantics Announces Record Results for 2014 2Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2
... AKRON, Ohio , June 16 On Wednesday, June 23 ... promises to inspire renewed hope for new jobs in Ohio . ... will share their insight on innovation, global commerce and the new skills needed ... www.ohio.com/jobgrowth . , , , ...
... and SAN DIEGO , June 16 ... Biosciences, Inc. (Nasdaq: NBIX ) today announced that ... and commercialize elagolix for the treatment of endometriosis-related pain. ... antagonist, which has recently completed a phase IIb study ...
... ... in a new denture retention system procedure that can add 20% profit to a dental practice. ... (PRWEB) June 16, 2010 -- The ... new denture retention system procedure that can add 20% profit to a dental practice the ...
Cached Biology Technology:Free Web Cast On Fueling Ohio's New Job Growth 2Abbott and Neurocrine Announce Global Agreement to Develop and Commercialize Elagolix for the Treatment of Endometriosis 2Abbott and Neurocrine Announce Global Agreement to Develop and Commercialize Elagolix for the Treatment of Endometriosis 3Abbott and Neurocrine Announce Global Agreement to Develop and Commercialize Elagolix for the Treatment of Endometriosis 4Abbott and Neurocrine Announce Global Agreement to Develop and Commercialize Elagolix for the Treatment of Endometriosis 5Summit Dental Institute Offers A Hands-On One-Day Imtec MDI Mini Dental Implant Certification Course For Dentists 2Summit Dental Institute Offers A Hands-On One-Day Imtec MDI Mini Dental Implant Certification Course For Dentists 3Summit Dental Institute Offers A Hands-On One-Day Imtec MDI Mini Dental Implant Certification Course For Dentists 4
... This special concentrated jetSI 10 nM is ... into mouse brain as described in: Z. ... C. Giovannangeli, J.-P. Behr, and B.-A. Demeneix. ... expression in the mouse brain at picomolar ...
... jetSI-ENDO-FluoF is a ... nm; emission at 520 nm), ... These reagents are used to ... investigate the intracellular delivery and ...
... R&D Systems Cell and Tissue Staining ... in a broad range of histological and ... with primary IgG antibodies manufactured by either ... detection is based on the formation of ...
... covers a wide range of hands-on techniques ... researchers in all areas of protein chemistry ... books preface illustrates just how valuable this ... The chapters introduce the theoretical background of ...
Biology Products: