HOME >> BIOLOGY >> NEWS
Alcohol's pharmacological properties, not smell or taste, reinforce its effects

  • Brain development during the first 10 days or so of rodent infancy is roughly equivalent to the third trimester of the human fetus.
  • New research indicates that alcohol's reinforcing properties during rodent infancy can be due to its pharmacological effects, independent of taste or smell.

Animal research has shown that rodent infants are susceptible to the reinforcing effects of alcohol. Scientists also know that exposure to alcohol during rodent infancy can change responsiveness to alcohol later in life. A study in the October issue of Alcoholism: Clinical & Experimental Research has found that alcohol's reinforcing properties during rodent infancy are due to its pharmacological effects.

"In terms of brain development, the first 10 days or so after birth for the rat is, very roughly, equivalent to the third trimester of the human fetus," said Elena I. Varlinskaya, associate research professor at Binghamton University and corresponding author for the study. "The extent to which alcohol is considered "reinforcing" is measured by the extent to which the animal approaches rather than avoids the predictor of alcohol's effects, in this case, a surrogate nipple. Previous research has indicated that infants, but not adults, might find the taste of alcohol reinforcing. Infants readily consume even high concentrations, up to at least 30 percent alcohol, whereas adults are reluctant to consume concentrations higher than six percent alcohol, and will do so only after weeks or months of training; even then they will rarely accept an alcohol concentration higher than 10 percent. Alcohol reinforcement in adult rats has been attributed largely to its pharmacological consequences. This was much less clear for infant rats, which is the reason for the present study."

"Fetuses and infants have an amazing capacity to learn and form associations among events in their environment," added Jennifer D. Thomas, assistant professor
'"/>


14-Oct-2003


Page: 1 2 3

Related biology news :

1. Alcohols effects on testosterone
2. Supramolecular assembly process provides flexibility; new DNA binding properties, solar conversion potential discovered
3. Essential smell gene may provide key to new insect repellents
4. Virginia Techs smelly corpse plant due to bloom Aug. 4
5. AChemS: Cutting edge research in taste, smell, & chemical irritation
6. Rockefeller University scientists take on controversial vibration theory of smell
7. Primates trade smell for sight
8. Progress in probing the mosquitos sense of smell
9. Ability to smell food regulated by enzymes interaction with RNA interference pathway
10. Stop to smell the flowers - But do it before theyre pollinated
11. Weizmann Institute scientists report why taste and smell differ among individuals

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/14/2019)... ... January 14, 2019 , ... CellMax ... cancer cells in blood, will present new findings at the ASCO Gastrointestinal Cancer ... colorectal cancer. The results from this study show CellMax Life’s blood test, based ...
(Date:1/10/2019)... FAIRFAX, Va. (PRWEB) , ... January 09, 2019 , ... ... of Ottawa Heart Institute in Ottawa, Ontario, Canada. He is also Director of ... the Department of Medicine, in the Department of Radiology, and in the Department of ...
(Date:1/10/2019)... ... 2019 , ... A major goal for pharmaceutical companies has ... significantly more expensive in vivo studies in order to reduce costs and improve ... researchers have begun to adopt 3D cell culture models which have been shown ...
Breaking Biology News(10 mins):
(Date:2/14/2019)... ... 14, 2019 , ... Leak Detection Associates (LDA), ... biotechnology and food industries, formally announced today the appointment of two key leadership ... named Chief Executive Officer and will oversee all aspects of the company’s operations, ...
(Date:2/2/2019)... (PRWEB) , ... January 31, 2019 , ... ... of research and clinical use of perinatal tissue by applied stem cell research ... and development team. Signature Cord is a flowable umbilical cord tissue allograft that ...
(Date:1/30/2019)... ... January 29, 2019 , ... Actus Therapeutics, ... dosing of the first patient in a phase 1/2 clinical study of ACTUS-101 ... with high morbidity and often leads to premature death. There are variable ...
(Date:1/30/2019)... ... January 30, 2019 , ... ... the international tasting 5StarWines to promote and give recognition to producers whose work ... Without Walls selection takes place in Verona, Italy, contemporaneously to the 5StarWines blind ...
Breaking Biology Technology:
Cached News: