Increase your income by attracting thousands of followers, fans, and friends to your Twitter, Facebook, and MySpace by using free content from www.SocialOpine.com. 
Neuropharmacology of alcohol addiction.
Despite the generally held view that alcohol is an unspecific pharmacological agent, recent molecular pharmacology studies demonstrated that alcohol has only a few known primary targets. These are the NMDA, GABA(A), glycine, 5-hydroxytryptamine 3 (serotonin) and nicotinic ACh receptors as well as L-type Ca(2+) channels and G-protein-activated inwardly rectifying K(+) channels. Following this first hit of alcohol on specific targets in the brain, a second wave of indirect effects on a variety of neurotransmitter/neuropeptide systems is initiated that leads subsequently to the typical acute behavioural effects of alcohol, ranging from disinhibition to sedation and even hypnosis, with increasing concentrations of alcohol. Besides these acute pharmacodynamic aspects of alcohol, we discuss the neurochemical substrates that are involved in the initiation and maintenance phase of an alcohol drinking behaviour. Finally, addictive behaviour towards alcohol as measured by alcohol-seeking and relapse behaviour is reviewed in the context of specific neurotransmitter/neuropeptide systems and their signalling pathways. The activity of the mesolimbic dopaminergic system plays a crucial role during the initiation phase of alcohol consumption. Following long-term, chronic alcohol consumption virtually all brain neurotransmission seems to be affected, making it difficult to define which of the systems contributes the most to the transition from controlled to compulsive alcohol use. However, compulsive alcohol drinking is characterized by a decrease in the function of the reward neurocircuitry and a recruitment of antireward/stress mechanisms comes into place, with a hypertrophic corticotropin-releasing factor system and a hyperfunctional glutamatergic system being the most important ones.
Br J Pharmacol. 2008 Mar 3 Vengeliene V, Bilbao A, Molander A, Spanagel R. 1Department of Psychopharmacology, Central Institute of Mental Health, Mannheim, Germany.
Posted: 06/10/2008
This article provided by The International Hypnosis Research Institute.
Enter your email address to subscribe to the IHRI Newsletter.
|
Fear of heights is one of the most common phobias.Hypnosis is extremely effective in quickly eliminating this phobia.You’ll be able to confidently and safely be in situations involving heights!
|
|
Wellbeing starts in the mind. Hypnosis is extremely effective at helping you build the basis of a healthy life because it works at the deep inner mind level to reprogram your mind to expect and welcome health into your life.
|
|
Overcome Your Fear Of Dentists.This hypnosis session will allow you to easily&calmly go to your dental appointments and relax.You will focus on your taking care of your teeth&find that negative associations with the dentists disappear.
|
