Serotonin Current Events | Serotonin News | 2
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Popular antidepressant associated with a dramatic increase in suicidal thoughts amongst men
Nortriptyline has been found to cause a ten-fold increase in suicidal thoughts in men when compared to its competitor escitalopram. These findings are published in the open access journal BMC Medicine. view more (2009-10-15)
Mood Lighting: Penn Researchers Determine Role of Serotonin in Modulating Circadian Rhythm
Researchers at the University of Pennsylvania School of Medicine have determined how serotonin decreases the body's sensitivity to light and that exposure to constant darkness leads to a decrease in serotonin levels in the brain of fruit flies. view more (2005-07-11)
Low levels of neurotransmitter serotonin may perpetuate child abuse across generations
Infant abuse may be perpetuated between generations by changes in the brain induced by early experience, research shows at the University of Chicago shows. view more (2006-11-02)
Researchers identify new brain pathway for regulating weight and bone mass
Contrary to the prevailing view, the hormone leptin, which is critical for normal food intake and metabolism, appears to regulate bone mass and suppress appetite by acting mainly through serotonin pathways in the brain. view more (2009-09-24)
Scientists provide new evidence for cellular cause of SIDS
University of Chicago researchers and colleagues have found strong support that a disturbance of a specific neurochemical can lead to sudden infant death syndrome, the primary cause of death before age 1 in the United States. view more (2006-03-08)
Gene linked with mental illness shapes brain region, researchers find
A gene variant associated with mental illness goes hand-in-hand with enlargement of a brain region that handles negative emotions, researchers at UT Southwestern Medical Center and the Central Texas Veterans Health Care System have found. view more (2006-11-08)
Migraine headaches & sexual desire may be linked
Contrary to the popular cliché, "Not tonight, I have a headache," new research suggests that not all headache sufferers avoid sexual activity. In fact, migraine sufferers reported higher levels of sexual desire than those with other types of headaches. view more (2006-06-12)
Why one way of learning is better than another
A new study from the Montreal Neurological Institute and Hospital (The Neuro) of McGill University reveals that different patterns of training and learning lead to different types of memory formation. view more (2009-10-02)
Panic attacks tied to breathing
Panic disorder can be tied to disturbances in the regulation of breathing. A dissertation from the Sahlgrenska Academy at Göteborg University in Sweden shows that the effect of serotonin preparations in attacks of panic anxiety might be due to their influence on breathing. view more (2002-12-20)
Researchers separate analgesic effects from addictive aspects of pain-killing drugs
For the first time, pain researchers at Washington University School of Medicine in St. Louis have shown that it's possible to separate the good effects of opiate drugs such as morphine (pain relief) from the unwanted side effects of those drugs (tolerance, abuse and addiction). view more (2007-08-22)
Study links chemical to inhibited milk synthesis, secretion in humans
University of Cincinnati (UC) researchers have identified the neurotransmitter serotonin as the chemical responsible for inhibiting milk production and secretion in human mammary glands. view more (2007-10-09)
The Genetics of Fear: Study Suggests Specific Genetic Variations Contribute to Anxiety Disorders
Polymorphisms are variations in genes which can result in changes in the way a particular gene functions and thus may be associated with susceptibility to common diseases. view more (2009-03-11)
Researchers look to the brain to explain gender differences in sleep apnea
The neural pathways between two areas of the brain that control the tongue - and their interactions with each other - may hold the key as to why men suffer sleep apnea much more than women. view more (2006-04-04)
New insights into the neural basis of anxiety
People who suffer from anxiety tend to interpret ambiguous situations, situations that could potentially be dangerous but not necessarily so, as threatening. view more (2007-06-04)
Study: cannabis a double-edged sword
A new neurobiological study has found that a synthetic form of THC, the active ingredient in cannabis, is an effective anti-depressant at low doses. However, at higher doses, the effect reverses itself and can actually worsen depression and other psychiatric conditions like psychosis. view more (2007-10-24)
Serotonin receptor: A rheostat in brain for emotion that may be linked to depression
Although drugs that target the brain's serotonin system are widely used to treat depression, the basic biological mechanism by which they help to alleviate symptoms is poorly understood. view more (2006-10-02)
New insight into how serotonin reduces appetite could help in developing safer anti-obesity drugs
A study led by a UT Southwestern Medical Center researcher sheds light on how the brain chemical serotonin, when spurred by diet drugs such as Fen-phen, works to curb appetite. view more (2006-07-20)
Scientists, linking gene with serotonin and depression, offer insights to new treatments
For the more than 18 million Americans who suffer from depressive illnesses, the best pharmacological treatments are those that increase levels of serotonin, the brain chemical that regulates mood, sleep and memory. view more (2006-01-09)
Prozac exposure found to disrupt mussel reproduction
Researchers from the National Institute of Standards and Technology (NIST) and North Carolina State University (NCSW) have demonstrated that a commonly prescribed antidepressant can interfere with the reproductive cycle of freshwater mussels-at least in a controlled setting. view more (2006-09-18)
Who knew he was the alpha male?
How do you know if a stranger will be nice or nasty? Professor Cliff Summers' group at the University of South Dakota has found that you can predict the social status of male lizards before they fight. What is more, green Anolis lizards show their fighting fitness through a colour signal on their face. Wayne Korzan has discovered that how fast... view more... (2004-03-25)
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