Navigation Links
Subordinate monkeys more likely to choose cocaine over food
Date:4/6/2008

WINSTON-SALEM, N.C. Having a lower social standing increases the likelihood that a monkey faced with a stressful situation will choose cocaine over food, according to a study at Wake Forest University School of Medicine. More dominant monkeys undergoing the same stressful situation had fewer changes in brain activity in areas of the brain involved in stress and anxiety and were less likely to choose cocaine.

Robert Warren Gould, a graduate student in the laboratory of Michael A. Nader, Ph.D., presented the study results Sunday at Experimental Biology 2008 in San Diego. The presentation was part of the scientific program of the American Society for Pharmacology and Experimental Therapeutics (ASPET).

Male cynomolgus monkeys live in a complex social structure in which the social hierarchy is established by physical aggression and maintained by clear signals. A monkey that has established his dominance over another monkey can elicit a subordinate response with no more than a meaningful look.

The researchers exposed four dominant and four subordinate monkeys to a socially stressful situation in which an individual monkey was taken out of his home cage and placed in an unfamiliar cage surrounded by four unfamiliar animals. The monkey was physically safe, but he could see and hear the animals around him engaging in aggressive behavior.

The study was performed twice, in order to ask two different types of questions. The first concerned brain activity caused by the stressful situation. Before being placed in the unfamiliar cage, each monkey had been injected with radioactively labeled glucose. After 40 minutes, each was given a PET brain imaging examination to see which parts of the brain were most active, as determined by which parts were using the most glucose. This type of brain imaging has been used frequently in humans to determine brain activity during various activities and situations. The scan of the individual monkeys
'/>"/>

Contact: Karen Richardson
krchrdsn@wfubmc.edu
336-716-4453
Wake Forest University Baptist Medical Center
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. Flextronics Announces Redemption and Change of Control Repurchase Offer for Solectron 8.00% Senior Subordinated Notes and Planned Change of Control Repurchase Offer for Solectrons 0.50% Senior Convertible Notes
2. Providence Service Corporation Completes Private Placement of $70 Million of Convertible Senior Subordinated Notes
3. MQ Associates, Inc. Announces Expiration of its Tender Offers for its 12 1/4% Senior Discount Notes Due 2012 (CUSIP No. 55345RAC2) and Medquest, Inc.s 11 7/8% Senior Subordinated Notes Due 2012 (CUSIP No. 58505DAD1)
4. Progression of SIV infection in monkeys raises
5. Parasites a key to the decline of red colobus monkeys in forest fragments
6. Protein Nasal Spray Revives Sleep-Deprived Monkeys
7. AVMA Urges Outlawing Trafficking of Chimps, Monkeys and Nonhuman Primates and Pets
8. Minorities more likely to have sleep durations associated with increased mortality
9. Scientists ID Likely Culprit in Popcorn Lung
10. Pop stars more than twice as likely to die an early death
11. Smokers More Likely to Develop Dementia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... pain relief targets that could be used to ... King,s College London made the discovery when researching ... of the body. , Dr Marzia Malcangio said: ... pain generation and our findings could help chemotherapy ... One potential side effect of some chemotherapy drugs ...
(Date:4/17/2014)... Colo. (April 17, 2014) Two recent papers ... researcher and colleagues may help scientists develop treatments ... Yellow fever, Japanese encephalitis and other disease-causing flaviviruses. ... biochemistry and molecular genetics at the School of ... Howard Hughes Medical Institute, and colleagues recently published ...
(Date:4/17/2014)... MAYWOOD, Il. (April 17, 2014) Doctors who ... disease called lymphangioleiomyomatosis (LAM) can face an agonizing ... progression of the disease and help relieve shortness ... lung transplants, and sirolimus can cause potentially fatal ... said pulmonologist Dr. Daniel Dilling, medical director of ...
(Date:4/17/2014)... Boston University School of Medicine (BUSM) have discovered ... in an experimental model. The findings, reported in ... Abuse , may lead to more effective treatments ... one of the leading causes of illness and ... economic impact by limiting the productivity of workers ...
(Date:4/17/2014)... NEW YORK (17 April 2014) Population Council scientists and ... is safe, stable, and can prevent the transmission of ... and rectum in animals: HIV, herpes simplex virus 2 ... provides the first data that the gel is effective ... of efficacy in the vagina against all three viruses ...
Breaking Medicine News(10 mins):Health News:New pain relief targets discovered 2Health News:CU researchers discover target for treating dengue fever 2Health News:Patients with rare lung disease face agonizing treatment dilemma 2Health News:Patients with rare lung disease face agonizing treatment dilemma 3Health News:BUSM researchers find anti-seizure drug may reduce alcohol consumption 2Health News:Animal study provides first evidence that gel can prevent multiple virus transmission in vagina/rectum 2
... Dr Mukesh Haikerwal, today congratulated the Government on a ... // with the AMA, and which delivers for patients. ... that the draconian conditions and red tape associated with ... ,'The Government has agreed that the expertise in prescribing ...
... especially the mentally-ill patients and their caregivers. The speech revived ... which would permit the use of obligatory powers to enable ... present ‘treatability test’. ,The infamous ‘Bournewood gap’ is ... of the new bill, which will seek to improve the ...
... banned the use of hookah, or hubble-bubble, in the Pakistani ... were spoiling the younger// generation. ,A way of ... South Asia and the Middle East, the hookah, known as ... and motels in Pakistan, The Daily Times said. ...
... more delays in getting the lab results! - Says ... from University of Georgia has developed a diagnostic test using ... influenza, HIV, RSV etc., in just 60 seconds or even ... technique – which is detailed in the November issue of ...
... that about one in 10 U.S. adults suffer chronic pain that ... Americans have increased to a record average of just short of ... from the Centers for Disease Control and Prevention. ,The ... 80 years and nearly 75 for males. The gap in life ...
... know that they shouldn't smoke or be around smokers ... at a young age. In addition, a new research ... could develop serious liver injuries due to the effects ... research performed at Washington University School of Medicine in ...
Cached Medicine News:Health News:Government Strikes Right Balance with PBS Reform 2Health News:Nanotechnology Used For Detecting Viruses 2Health News:Nanotechnology Used For Detecting Viruses 3Health News:Non-Steroidal Anti-Inflammatory Drugs Can Cause Liver Damages 2Health News:Non-Steroidal Anti-Inflammatory Drugs Can Cause Liver Damages 3
(Date:1/15/2014)... Ohio , Jan. 15, 2014  A novel wearable injector ... easy and painless for patients to self-inject prescription drugs in ... disorders, including cancer, blood diseases, autoimmune deficiencies, and genetic disorders.  ... to grow to $220B by 2018, according to analysts.   Many ...
(Date:1/14/2014)... AUSTIN, Texas , Jan. 14, 2014  Luminex Corporation (Nasdaq: ... report results for the fourth quarter of 2013 on Monday, ... scheduled for release after the close of trading. ... a conference call to discuss the operating highlights and financial ...
(Date:1/14/2014)... Calif. , Jan. 14, 2014 The Brandeis Medical Center, ... Angeles a premier and affordable laser tattoo removal experience ... Dr. Brandeis, focus is in providing high quality cosmetic services with ... patients. " Southern California has seen ...
Breaking Medicine Technology:Enable Injections Presents A New Class of Injectors for Drug Delivery at PEPTalk, Drug Delivery Partnership Meetings 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 2Luminex Corporation Fourth Quarter Earnings Release Scheduled for February 3, 2014 3Beverly Hills Physician Features Tattoo Removal with the Astanza Duality Laser, Offers $99 Special 2
... 2011 Omeros Corporation (Nasdaq: OMER ) today ... Regents of the University of California to a new series ... advance in the control of surgical and traumatic bleeding. ... represents a potential life-saving treatment for patients. With the withdrawal ...
... 5, 2011 CutisPharma, Inc. announced the introduction ... Mary,s Mouthwash compounding kits. These products complete the ... line already includes FIRST® - Mouthwash BLM, and ... FIRST® - Duke,s Mouthwash are comparable to those ...
Cached Medicine Technology:Omeros Licenses Novel Antifibrinolytic Agents 2Omeros Licenses Novel Antifibrinolytic Agents 3Omeros Licenses Novel Antifibrinolytic Agents 4CutisPharma Launches New Prescription Mouthwash Kits Expanding Product Line 2
... PLUS pachometers are acknowledged to be the ... pachometers available. These benefits are due to ... and smallest tip footprint available coupled with ... for every displayed reading. Thus corneal thickness ...
... versatile and uncomplicated use of the Leica ... obtained make it the instrument of choice ... cryostat applications. The open top stainless steel ... accessible and offers ample space for convenient ...
... the new style of Bright cryostat. ... OTF/AS cryostat, the new OTF5000 incorporates ... ever-reliable and powerful 5040 microtome. A ... package deals makes the range of ...
... The Leica TP1020 product family are ... a perfect combination of approved technology with ... processing and maximum safety for tissues at ... engineering design based on proven precision mechanics ...
Medicine Products: