Breakout data suggests a wake-promoting agent promotes cocaine abstinence
Cocaine dependence is a major public health problem affecting thousands of people around the globe. Despite years of active research there are still no approved medications for the treatment of this life-shattering addiction. Researchers are now hopeful that may soon change based on the results of a controlled study done at the University of Pennsylvania School of Medicine. The study’s findings can be found in the January issue of Journal of Neuropsychopharmacology and on-line at www.neuropsychopharmacology.org. Penn investigators have identified Modafinil – a wake-promoting agent approved for the treatment of narcolepsy – as a possible medicinal treatment for cocaine dependence. In a double-blind, placebo-controlled trial, researchers found Modafinil promoted cocaine abstinence in treatment-seeking outpatients. Modafinil was also shown to blunt cocaine-induced euphoria in a prior study conducted by the same research group, perhaps explaining its clinical advantage. "If confirmed by further investigation, this could be the breakthrough we have been waiting for," says Charles Dackis, MD, Chief of Psychiatry at the University of Pennsylvania Medical Center – Presbyterian, and the study’s principal investigator.
"Cocaine is capable of destroying not only the lives of those addicted, but also those around them," adds Dackis. "An effective treatment for cocaine addiction would help those most vulnerable in our society to overpower their addiction and regain control in their lives." The trial was conducted at Penn’s Treatment Research Center between 2002 and 2003. It involved a sample of 62 cocaine-dependent patients (aged 25-63) free of significant medical and psychiatric conditions. All participants were from the Philadelphia area. After initial screenings, eligible patients were randomized to a single morning dose of Modafinil (400 mg), or matching placebo tablets, that was continued for eight weeks along with twice-weekly cognitive behavioral therapy (CBT). Thirty participants were treated with Modafinil; and 32 were given placebo.
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Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
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An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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