Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

First effective drug for sleep disorder identified

05.06.2003


In a clinical trial conducted at the University of Illinois at Chicago, researchers have demonstrated the first promising drug treatment for a common and life-threatening sleep disorder called sleep apnea.



The drug, an antidepressant called mirtazapine, significantly reduced the symptoms of sleep apnea. It cut in half the number of times breathing stopped or slowed during sleep and reduced the number of times sleep was disrupted by 28 percent. All 12 patients who participated in the study showed improvement.

"The drug provided the largest benefit and the most consistent improvement of any pharmaceutical therapy tested in controlled studies to date," said David Carley, professor of medicine, pharmacology and bioengineering and director of research at the UIC Center for Sleep and Ventilatory Disorders.


The results of the trial will be presented this week at the annual meeting of the Associated Professional Sleep Societies in Chicago by Carley and co-investigator Dr. Miodrag Radulovacki, professor of pharmacology and medicine at UIC.

"This has real clinical significance," said Radulovacki. "An estimated 15-20 million people in the United States suffer from sleep apnea, yet there is currently no cure and no fully effective long-term treatment for the disorder."

Apnea -- which means "without breath" -- is diagnosed when a person periodically stops breathing for 10 seconds or more or has episodes of reduced breathing during sleep. People suffering from sleep apnea may stop breathing hundreds of times a night, often for a minute or longer. The disorder is associated with increased risk of high blood pressure, heart attack, stroke and adult-onset diabetes. Behavioral problems and cognitive impairments can occur due to insufficient rest.

At present, sleep apnea is treated with mechanical devices, most often masks or nasal prongs, that maintain a continuous positive airway pressure. Such devices are uncomfortable, however, and difficult to use long-term.

The 12 patients in the UIC study were between the ages of 20 and 70. They received one of two dosages of mirtazapine or a placebo an hour before bedtime. They were monitored throughout the night in the UIC Center for Sleep and Ventilatory Disorders after each of three seven-day treatment periods.

The clinical trial at UIC followed years of laboratory tests of several classes of medications on a strain of rats that exhibit sleep apneas similar to the human disorder. Mirtazapine showed the most promise; other drugs either improved the condition only marginally or made it worse.

Mirtazapine blocks the activity of a chemical in the nervous system called serotonin that is involved in regulating mood, emotion, appetite and sleep.

The UIC study was funded by NV Organon, which markets mirtazapine as Remeron for the treatment of depression.

Mirtazapine has not been approved by the U.S. Food and Drug Administration for the treatment of sleep apnea. Its use in this trial was approved by a UIC institutional review board for experimental purposes only.

Sharon Butler | EurekAlert!
Further information:
http://www.uic.edu/

More articles from Health and Medicine:

nachricht GLUT5 fluorescent probe fingerprints cancer cells
20.04.2018 | Michigan Technological University

nachricht Scientists re-create brain neurons to study obesity and personalize treatment
20.04.2018 | Cedars-Sinai Medical Center

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Getting electrons to move in a semiconductor

25.04.2018 | Physics and Astronomy

Reconstructing what makes us tick

25.04.2018 | Physics and Astronomy

Cheap 3-D printer can produce self-folding materials

25.04.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>