Click on this arresting photograph of Hawaii's Mauna Kea volcano, shot from orbit, and then see if you can make out a series of white structures on the summit. See them? They form a 'C' right at the top. (For an original, high resolution version of the image, go here.) These are some of the 13 working telescopes near the volcano's summit, as seen from the International Space Station on Nov. 1, 2015 and posted today by NASA's Earth Observatory. As the website for the University of HaRead More »
Monthly Archives: November 2015
Every once in awhile, a kind of hole blows out in the Sun's atmosphere — a "coronal hole," as it is called. And it has happened again, this time on top of the Sun. You can see it above in a sequence of images captured by NASA's Solar Dynamics Observatory spacecraft, or SDO, in different wavelengths of light. Look for the big dark area on the Sun's cap. Not to worry! This is completely normal. SEE ALSO: Has the Sun blown its top? Ordinarily, the Sun's magnetic field lines extend uRead More »
The evidence in support of using the stimulant methylphenidate (more commonly known by such brand names as Ritalin, Concerta, Methylin and Medikinet) to treat children with attention deficit hyperactivity disorder (ADHD) is of such low quality that physicians should prescribe these drugs only with caution, the authors of a major new meta-analysis warn.
The meta-analysis — conducted by an independent and international team of 17 Cochrane researchers — found that the evidence in favor of treating ADHD with methylphenidate is weaker than many physicians (and parents) realize.
Furthermore, even if the existing evidence is taken at face value, the benefits from methylphenidate are modest at best. And the drug is not harm-free, for its use in children is associated with sleep problems and decreased appetite.
The meta-analysis’ findings, published last week in the Cochrane Database of Systemic Review, are troubling. ADHD is one of the most commonly diagnosed and treated childhood neurodevelopmental disorders. In 2011, approximately 11 percent of U.S. children aged 4 to 17 — 6.4 million young people in all — had been diagnosed with ADHD, according to the Centers for Disease Control and Prevention (CDC).
More than half of these children — 6.1 percent of all American children and teens — were taking a medication, primarily methylphenidate, to control their ADHD symptoms, which include difficulty paying attention and controlling impulsive behaviors and/or a tendency to be overly active.
Details of the review
For their meta-analysis, the Cochrane reviewers looked at 185 studies (38 randomized controlled trials and 147 crossover trials) that compared methylphenidate with either placebo or no intervention. The studies, which were mostly conducted in the U.S., Canada and Europe, involved more than 12,000 children and teens, aged 3 to 18. The children took methylphenidate for one to 425 days, with an average treatment run of 75 days.
A pooling of the data from a number of those trials revealed that methylphenidate resulted in a slight improvement in how teachers rated ADHD symptoms when compared to placebo or no intervention. But the difference was modest: an average of 9.6 fewer points on the ADHD Rating Scale. This scale has a range of 0 to 72 points, and, as experts for the U.K.’s National Health Service note in their discussion of the meta-analysis, a change of 6.6 points is considered the minimal amount needed to be clinically meaningful.
The Cochrane reviewers also say that those modest improvements need to be balanced against an increased risk of adverse effects, particularly sleeping problems and decreased appetite. Their analysis found that children with ADHD who received methylphenidate in clinical trials were 29 percent more likely to develop these problems than children with ADHD who received a placebo.
Although the reviewers found no evidence that methylphenidate leads to serious adverse health problems in children, they point out that “very little” is known about the drug’s long-term effects. That’s because most studies that examined methylphenidate in children did not last longer than six months.
But the overriding problem with all 185 studies, say the Cochrane reviewers, is that each was designed in a way that could have led to biased findings. In many of the studies, for example, it would have been relatively easy for everybody involved to figure out which children were taking the drug and which were taking the placebo.
In addition, some 40 percent of the methylphenidate studies were funded by the pharmaceutical industry. In recent years, several groups of researchers, including a team from Cochrane, have reported that industry-sponsored studies are significantly more likely to produce results that paint a positive picture of a drug or device than independently funded ones.
The 185 studies “suggest that methylphenidate might improve some of the core symptoms of ADHD — reducing hyperactivity and impulsivity, and helping children to concentrate,” the authors of the meta-analysis conclude. “Methylphenidate might also help to improve the general behaviour and quality of life of children with ADHD. However, we cannot be confident that the results accurately reflect the size of the benefit of methylphenidate.”
“Better-designed trials are needed,” they stress, before we can know for sure if the benefits truly outweigh the risks.
You’ll find the study on the Cochrane Library website.Read More »
There was a point in our history when once a person experienced an episode of psychosis they were considered damaged goods. Often heavily medicated, they were isolated from society, locked away in psychiatric institutions, or, at best, encouraged to quit work or school and stay at home.
Things aren’t that bad these days, but the current system of care in the United States for people with schizophrenia could use some improvement, said Piper Meyer-Kalos, Ph.D., executive director of the Minnesota Center for Chemical and Mental Health at the University of Minnesota.
For the past six years, Meyer-Kalos has been part of the psychosocial development team of the Recovery After Initial Schizophrenia Episode (RAISE) project, a federally funded study that investigated best practices for treating people after their first psychotic episode.
Recently, increasing emphasis has been placed on the promise of prompt treatment after first psychotic episode. The RAISE project, which focused on intensive treatment to help people with schizophrenia get back to normal life, recently published the results of their research in the American Journal of Psychiatry. The study found that lower doses of drugs, combined with intensive therapy and individual resiliency programs, produced better results over a two-year period than the treatment methods most commonly used in the United States.
Recently, I spoke with Meyer-Kalos. She told me about her research — and about her belief that people who have experienced psychosis can go on to live happy, productive lives.
MinnPost: You are part of a team that has recently published intriguing research focused on treatment methods for people who’ve experienced first-episode psychosis. Can you tell me more about your work?
Piper Meyer-Kalos: The project that I’ve been working on started in the United States in 2009. I’m part of a team headed by John Kane from the Feinstein Institute for Medical Research at Long Island Jewish Medical Center. Our research wrapped up in 2014 and we’ve been analyzing our results for about a year.
The research was focused on developing effective intensive treatment methods for people who have experienced first-episode psychosis. Across our borders in Canada and Europe they’ve been talking about the importance of this form of intensive treatment for first-episode psychosis for some time. In the U.S., we were a little behind, though some American programs have developed this form of treatment organically, popping up in cities around the U.S. This trial was an effort to establish best practices for this model of treatment.
Developing a new model of treatment for first-episode psychosis is important because what we are finding out is that the earlier that you address treatment for people who have experienced their first episode of psychosis the better their overall outcome can be. The earlier people are treated, the better the chance they have to change the trajectory of their illness and improve the quality of their lives.
MP: How does this intensive model of treatment work?
PMK: Our treatment model, which we call NAVIGATE, combines family education, individual therapy, supportive employment and education and medication therapy. It’s an intentional combination of these psychosocial rehabilitation models.
It’s a team-based approach. We believe that it’s really important that these therapies are used together. We think having all options available to the patient and then working together with the patient to maximize engagement is what works the best and gets the best outcomes.
If we address patient needs with a team-based approach, we can better address the patient’s immediate and ongoing needs and help them get on with their lives. After a psychotic episode, people want to get back to work and school and their friends and families. The hope is that this treatment will help them avoid having to go on disability and step away from life. We want to help change that trajectory so that they can more fully recover from psychosis.
MP: How is this approach different from the way psychosis is commonly treated in the United States?
PMK: In the U.S., the typical treatment model is that people who have had episodes of psychosis are offered several different types of treatment in separate locations. So they’ll see a prescriber to get their medication. Then they’ll see someone else for case management. Then maybe, if they’re lucky, they can participate in group therapy or individual therapy. But they usually have to go somewhere else to access that.
Because these treatment options are so spread out, people often have a hard time actually getting access to all the types of services they need to get better. Sometimes a person who might be just coming out of the hospital might get lined up with a prescriber, but the other services are much more inaccessible. Then it takes time to get all the services in place.
MP: So how was your trial designed?
PMK: It was a cluster-randomized trial that was offered at a number of community-based treatment centers in over 20 states across the U.S. that serve people with serious and persistent mental illness. We randomized our study by site, not by individual people at each site. Half of the sites in the study used the NAVIGATE approach to treatment. The other half used what we called “community care,” or the existing treatment that was available at that site. A total of 404 people were enrolled in the study.
There was a strict criterion for participation in the study. It had to be the subject’s first episode of psychosis. They also had to have less than six months of lifetime exposure to an antipsychotic medication. We wanted to work with people who had little exposure to medication treatment. We wanted to get them early on to see if we intervene at an early level can we make a bigger impact.
MP: How did your NAVIGATE teams work with patients?
PMK: The NAVIGATE teams consisted of a project director, a family education specialist, a prescriber — either a psychiatrist or a nurse practitioner — a supportive- employment specialist, and what we call a “resiliency specialist.”
When people came into the clinic, they were greeted by every member of the team. Then they got orientation about all the components of the program. After that, based on their needs, patients would see some team members more than others. It was a very flexible model. We focused on the things that the clients told us were most important in their lives. If a client wanted to go back to school and work, for instance, that was our main focus. The treatment was client-driven.
MP: Why was the team approach central to the NAVIGATE model?
PMK: The NAVIGATE team-centered approach really improves the quality of care and allows providers to focus on the individual. When we worked as a team, we were constantly looking at ways to collaborate and piggyback, ways to make the treatment program work best for the individual patient. We had weekly team meetings. In those meetings we would talk about ways we could support patients in their recovery. We also had treatment-team meetings in which the client, their family members and their team members met together so we could talk about new about ways to support the client in their treatment and healing.
MP: What were your study’s central findings?
PMK: We’ve only just begun to really dig into this data. The research that was published in the American Journal of Psychiatry included the major outcomes of our study. We found that people in the NAVIGATE program stayed in treatment longer. They had a greater percentage of time in work and school. Our most important outcome was that study participants reported greater improvement in their quality of life. They also had a lower number of symptoms than subjects treated in the traditional programs.
MP: How did you get interested in this kind of research?
PMK: My research and work has centered on developing psychosocial treatments for people with schizophrenia. I’ve done work in manualized treatments and developing trainings for providers.
I’ve always worked with people with multiple episodes of psychosis. It became really interesting to me when the opportunity presented itself to be part of this research. My colleague was able to become part of the group that was developing NAVIGATE, and he invited me to join him. I was really interested in emphasizing recovery and resiliency.
I’ve also done a lot of work in positive psychology and what that approach might do in the treatment and recovery of this population.
MP: What role do you think positive psychology can play in the treatment of schizophrenia?
PMK: Most of the research that is out there about schizophrenia has always focused on questions like, “How do we help people work with their deficits or the areas that they need to improve in their lives?” What I think is so interesting about positive psychology is that instead of focusing on deficits we talk about how we can enhance people’s existing positive qualities. Focusing on people’s positive qualities becomes just as important as remediating their deficits.
MP: Talk of “deficits” does seem like it carries a feeling of shame. Is that why some people avoid seeking treatment for mental illnesses like schizophrenia?
PMK: The stigma that still exists around metal illness places a lot of pressure on people who have been diagnosed with a major mental illness. They think, “If I am diagnosed with this mental illness, then I won’t be able to do X, Y and Z.” The self-protective impulse would be to say, “I must not have this mental illness, I must not seek help for it, because I can still do X, Y and Z.”
Eventually, with the right treatment, people with schizophrenia can come to a point where they realize, “This illness is something that I can manage and still continue to live my life. It’s part of who I am, but it doesn’t define who I am. It’s one piece that makes me who I am.” That response can be a result of this kind of treatment.Read More »
We all know that eating lots of garlic can make your breath unpleasant (although there are other foods you can eat along with the garlic to avoid this). So you'd guess that garlic would also make your BO smell garlicky...right? Not so fast. In this study, a group of Czech researchers had some male "odour donors" eat a normal diet, while others ate extra garlic (ranging from two to four cloves). They all wore a cotton pad in their armpits for the next 12 hours. The researchers then put the cRead More »
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