| Other scientists have done some very elegant work associating basic feelings of attachment with elevated activity of oxytocin and vasopressin. |
| The bottom line is that serotonin-enhancing antidepressants that negatively affect this sex drive can quite logically also negatively affect the brain circuits for romantic love. |
| Serotonin-enhancing antidepressants can inhibit other evolutionarily adaptive mechanisms for mate selection. |
| Serotonin-enhancing antidepressants can also inhibit psychologic mechanisms for mate choice. |
| This creates the potential for jeopardizing a patient's personal, social, and genetic future. |
Love, Understanding, Peace and Beautiful Life
http://www.flickr.com/photos/65189513@N07/6816727896/
http://www.physorg.com/
U.S. and Brazilian scientists have just proven that one of Bob Dylan's most famous lines—"everybody must get stoned"— is correct. That's because they've discovered that the brain manufactures proteins that act like marijuana at specific receptors in the brain itself. This discovery, published online in The FASEB Journal, may lead to new marijuana-like drugs for managing pain, stimulating appetite, and preventing marijuana abuse.
Studies show that the release of the body's own marijuana-like compounds is crucial to stress-induced analgesia the body's way of initially shielding pain after a serious injury.
Cannabinoid compounds have been shown to inhibit the growth of tumour cells in culture and animal models by modulating key cell-signalling pathways.
Scientists from Hungary, Germany and the U.K. have discovered that our own body not only makes chemical compounds similar to the active ingredient in marijuana (THC), but these play an important part in maintaining healthy skin. This finding on "endocannabinoids" just published online in, and scheduled for the October 2008 print issue of, The FASEB Journal could lead to new drugs that treat skin conditions ranging from acne to dry skin, and even skin-related tumors.
"Our preclinical data encourage one to explore whether endocannabinoid system-acting agents can be exploited in the management of common skin disorders," said Tamás Biró, MD, PhD, a senior scientist involved in the research. "It is also suggested that these agents can be efficiently applied locally to the skin in the form of a cream."
Biró and colleagues came to this conclusion by treating cell cultures from human sebaceous glands (the glands that make the oil on our skin) with various concentrations of endocannabinoids (substances produced by the body that are similar to the active ingredient in marijuana).
Then they measured the production of lipids (fat cells, such as those in skin oil), cell survival and death, and changes in gene expression and compared these outcomes to those in an untreated control group.
"This research shows that we may have something in common with the marijuana plant," said Gerald Weissmann, MD. "Just as THC is believed to protect the marijuana plants from pathogens, our own cannabinoids may be necessary for us to maintain healthy skin and to protect us from pathogens ."
http://www.erowid.org/plants/cannabis/cannabis_pharmacology2.shtml
Cannabinoid receptors
The CB1 receptor
The CB2 receptor
The possibility of CBn receptors
Endocannabinoids
Anandamide
2-arachidonoyl-glycerol
Palmitoyl-ethanolamide
Docosatetraenylethanolamide and Homo-g-linoenylethanolamide
Oleamide
Some Proposed roles of the endogenous cannabinoid system
Learning and synaptic plasticity
Pain
Vision
Neuroprotection
Allergy and regulation of inflammation
Reproduction
Source: Federation of American Societies for Experimental Biology
Jam On It
The same reward pathways in the brain that are fired up by food, sex, and many illicit drugs — and even the anticipation of such highs — are triggered by pleasurable music as well, according to a study by researchers at the Montreal Neurological Institute and Hospital.
Like those other pleasure cues as well, listening to music is associated with the release of the neurotransmitter dopamine.
Published in the journal Nature Neuroscience, the results may offer insight into why music, which has no obvious survival value, is prevalent and significant across human society.
The research team measured dopamine release in response to music that elicited “chills,” changes in skin conductance, heart rate, breathing, and temperature that were correlated with pleasurability ratings of the music. “Chills” or “musical frisson” is a well established marker of peak emotional responses to music.
Using novel combination of PET and fMRI brain imaging techniques, researchers found that dopamine release is greater for pleasurable versus neutral music, and that levels of release are correlated with the extent of emotional arousal and pleasurability ratings.
“These findings provide neurochemical evidence that intense emotional responses to music involve ancient reward circuitry in the brain,” said researcher Dr. Robert Zatorre.
“To our knowledge, this is the first demonstration that an abstract reward such as music can lead to dopamine release. Abstract rewards are largely cognitive in nature, and this study paves the way for future work to examine non-tangible rewards that humans consider rewarding for complex reasons.”
According to lead investigator and doctoral candidate Valorie Salimpoor, “Music is unique in the sense that we can measure all reward phases in real-time, as it progresses from baseline neutral to anticipation to peak pleasure all during scanning.”
“It is generally a great challenge to examine dopamine activity during both the anticipation and the consumption phase of a reward. Both phases are captured together online by the PET scanner, which, combined with the temporal specificity of fMRI provides us with a unique assessment of the distinct contributions of each brain region at different time points.”
The study also showed that two different brain circuits are involved in anticipation and experience, respectively: one linking to cognitive and motor systems, and hence prediction, the other to the limbic system, the emotional part of the brain.
January 13, 2011
PsychCentral
Source: McGill University
Cranial sacral therapy (also known as craniosacral therapy) is a gentle, noninvasive form of alternative medicine that deals with the movement of the fluid surrounding the skull and spine. Cranial sacral therapists ease the restrictions of nerve passages by focusing on the membranes that encase the central nervous system.
Cranial sacral therapy seeks to restore misaligned bones to their proper position and is thought to eliminate the negative effects of stress as well as provide relief from migraine headaches, neck and back pain, temporomandibular joint disorder (the inflammation of the joint that connects the lower jaw to the skull) and more.
For more stress relieving tips visit: http://www.fi.edu/learn/brain/relieve.html#relievequick