News and Multimedia from 2007 Featuring DNBBS

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Study Aims to Develop First Medications for Fragile-X Syndrome, Leading Inherited Cause of Mental Retardation
Science Update • December 20, 2007

A new NIMH grant is enabling scientists to begin testing safety and effectiveness of potential medications for fragile-X syndrome, the most common inherited form of mental retardation. No effective medications are available for the disorder.

Depression’s Flip Side Shares its Circuitry
Science Update • November 14, 2007

Humans tend to be overly optimistic about the future, sometimes underestimating risks and making unrealistic plans, notes NIMH grantee Elizabeth Phelps, Ph.D., New York University.

Memory-sustaining Enzyme May Help Treat PTSD, Cognitive Decline
Science Update • November 02, 2007

Chemically blocking an enzyme in a specific area in the brain’s cortex, or outer mantle, erased a long-term memory of an aversive event that rats had learned, a study funded in part by NIMH has found.

New Social Neuroscience Grants to Help Unravel Autism, Anxiety Disorders
Science Update • October 10, 2007

How genes and the environment shape the brain circuitry underlying social behavior is among the questions being addressed by three newly NIMH-funded studies.

Bipolar Disorder Phenome Database May Aid Search for Related Genes
Science Update • October 02, 2007

Early findings from the recently launched Bipolar Disorder Phenome Database were published in the August 2007 issue of the American Journal of Psychiatry.

Gene Triggers Obsessive Compulsive Disorder-Like Syndrome in Mice
Press Release • August 22, 2007

Using genetic engineering, researchers have created an obsessive-compulsive disorder (OCD) - like set of behaviors in mice and reversed them with antidepressants and genetic targeting of a key brain circuit. The study, by National Institutes of Health (NIH) -funded researchers, suggests new strategies for treating the disorder.

New Studies Search for Clues to Mental Illness in Gatekeepers of Gene Expression
Science Update • August 10, 2007

What goes awry in the brain to cause mental illness may ultimately be traced to glitches in genes - but not necessarily the parts of genes commonly suspected.

New Technique Pinpoints Crossroads of Depression in Rat Brain
Science Update • August 02, 2007

NIMH-funded scientists have developed a new high-speed technique for imaging brain activity and used it to pinpoint a circuit signal in rats that may be at the crossroads of depression — a possible "final common pathway" where different causes of, and treatments for, the disorder appear to converge.

Success or Failure of Antidepressant Citalopram Predicted by Gene Variation
Press Release • August 01, 2007

A variation in a gene called GRIK4 appears to make people with depression more likely to respond to the medication citalopram (Celexa) than are people without the variation, a study by the National Institute of Mental Health (NIMH), part of the National Institutes of Health, has found.

Cell Networking Keeps Brain’s Master Clock Ticking
Science Update • May 04, 2007

Each day, a master clock in the brain synchronizes the timing of lesser clocks in cells throughout the body to the rising and setting of the sun, regulating such daily rhythms as sleep, body temperature, eating, and activity. Scientists funded in part by the National Institute of Mental Health have now discovered that the secret to this master clock’s robust time-keeping ability lies in the unique way its cells work together.

Gene Knockout Unleashes Manic Mouse
Science Update • April 05, 2007

Mice engineered to lack a specific gene showed behaviors similar to human mania in a study funded in part by NIMH; they were hyperactive, slept less, appeared less depressed and anxious, and craved sugar, cocaine and pleasure stimulation.

Scientists Switch Neurons On and Off Using Light
Science Update • April 05, 2007

Researchers have invented a genetically-engineered way to turn the electrical impulses of brain cells on and off with pulses of blue and yellow light — in synch with the split-second pace of real time neuronal activity.

Tiny, Spontaneous Gene Mutations May Boost Autism Risk
Press Release • March 15, 2007

Tiny gene mutations, each individually rare, pose more risk for autism than had been previously thought, suggests a study funded in part by the National Institute of Mental Health, a component of the National Institutes of Health.

Weight Gain From Antipsychotics Traced to Appetite-Regulating Enzyme, Receptor
Science Update • February 28, 2007

A likely mechanism by which antipsychotic medications trigger weight gain — with its attendant risks of heart disease, diabetes and treatment non-adherence — has been unraveled in mice by NIMH-funded scientists.

Largest-Ever Search for Autism Genes Reveals New Clues
Press Release • February 18, 2007

The largest search for autism genes to date, funded in part by the National Institutes of Health (NIH), has implicated components of the brain’s glutamate chemical messenger system and a previously overlooked site on chromosome 11.

New Tests May Help Researchers Detect Genetic Basis For Autism
Science Update • January 30, 2007

Researchers have developed a set of behavioral tests in mice that mimic the core features of autism and may prove useful in detecting a genetic basis for the deficits in social interactions and rigid thinking seen in the disorder.

Clues to Making and Breaking Memories Included in List of Year’s Top Science
Science Update • January 30, 2007

NIMH-funded researchers were cited in Science Magazine’s December 2006 “Breakthrough of the Year” special issue.

Different Families, Different Characteristics — Different Kinds of Bipolar Disorder?
Science Update • January 03, 2007

People with bipolar disorder (BPD) tend to share similarities in certain characteristics with other members of their families, NIMH-funded researchers have shown.


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