Spring 2012 - The Feinstein Institute for Medical Research
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Spring 2012 - The Feinstein Institute for Medical Research
focus ON INSIDE New Lupus Drug + Mesenchymal Stem Cell Research + Tourette Syndrome Research A Member of the North Shore-LIJ Health System + northshorelij.com Scientists Study Brain Development P Spring 2012 sychiatric researchers at The Zucker Hillside Hospital are tracking brain development in normal children and adolescents with hopes that someday it will yield keys to mental illness. So far, 100 people ages 8 to 21 have offered up their brains for scanning and their saliva for genotyping. They have also agreed to undergo neurocognitive tests to measure the way their brains learn. Researchers used the information to create a neurotrajectory of the developing brain. The study is named CANDY, for Comprehensive Assessment of Neurodevelopment in Youth. Researchers learned that the brain’s white matter volume increases throughout adolescence and into early adulthood, especially in an area involved in learning and memory called the superior longitudinal fasciculus (SLF). Anil Malhotra, MD The thalamus, which acts as a relay center for information, was also growing throughout adolescence. Researchers used several types of brain imaging scans. “This will be an invaluable resource,” said Anil Malhotra, MD, director of the Laboratory of Molecular Psychiatry. The study was led by Bart Peters, MD, PhD, a postdoctoral research fellow in the laboratory. “Diffusion tensor imaging has provided valuable insights into healthy white matter development in adolescence,” said Dr. Peters. “The increasing connectivity in the SLF during this period implicates the region as a specific target for neurodevelopmental disorders that involve language dysfunction.” Dr. Malhotra wants to recruit another 400 young people, and the hope is to follow up with additional scans. Researchers will have genetic information matched with brain, cognitive and behavioral information and, should any of the young people develop a mental illness, researchers will be able to go back to the data to see whether there were any hints in the developing brain that could have predicted mental illness years later. The study is supported by a grant from the National Institutes of Health. Potential participants should call Kimberly Cameron at 718-470-4656. Clinical Testing of a New Lupus Drug N othing is more satisfying in science than studying a medication that makes its way through the experimental pipeline and ends up approved for use by the US Food and Drug Administration (FDA). When the FDA approved Benlysta, a treatment for lupus, in March 2011, Richard Furie, MD, chief of the Division of Rheumatology, Allergy and Clinical Immunology at the North Shore-LIJ Health System and director of the Systemic Lupus Erythematosus (SLE) and Autoimmune Disease Treatment Center, quickly penned a note to his patients. After all, more than 50 people had been willing to sign on at different phases in the clinical testing of the drug. Dr. Furie is the first author of a study published in December 2011 in Arthritis and Rheumatism. The paper outlines the results from the phase III testing of the drug Benlysta. The drug is a monoclonal antibody that binds a protein known as BLyS (B lymphocyte stimulator). BLyS was discovered in the late 1990’s and was found to be crucial for B-lymphocyte survival, growth and differentiation. Preclinical work in animals, along with observational studies in humans that demonstrated increased levels of BLyS in lupus, fueled interest in developing inhibitors of BLyS as a treatment for SLE. The strategy was to create a monoclonal antibody to BLyS and use it to subdue the overactive B-lymphocyte compartment seen in patients with lupus. A phase I study demonstrated safety and tolerability in patients, and that study served as the foundation for a phase II study performed to determine whether Benlysta could reduce disease activity in lupus patients. The phase II study included 400 patients, and more than a dozen of them are patients followed in the Division of Rheumatology. While the study did not reach its primary endpoint, many favorable signals were observed. The most important post-hoc analysis led to the creation of a novel composite responder index, which was used as the primary endpoint in the two pivotal phase III trials. The two phase III studies were designed to determine whether Benlysta could reduce lupus disease activity. One study was known as BLISS-52 and the other BLISS-76. Both studies were successful in achieving their endpoints. The former was conducted outside the US and was reported in The Lancet. The latter was done primarily in North America and Europe. Eleven patients followed by Division members were also enrolled in the phase III study. Other lupus clinicians at The Feinstein Institute for Medical Research also enrolled patients into the studies. Patients enrolled in the study had a certain level of disease activity, as determined by a commonly used instrument known as the SELENA SLEDAI. The drug was administered intravenously once a month. Assessments were perRichard Furie, MD formed monthly, and the activity at one year was compared with baseline values. There was a statistically significant reduction in disease activity in the group that received the higher of the two doses. Since Benlysta was approved, six more patients have signed up to receive the new treatment. It is the first new lupus drug approved in 50 years. Advancing Women in Science and medicine (AWSM) AWSM was created to advance the career opportunities and career satisfaction of women scientists at The Feinstein Institute for Medical Research, and to enhance the visibility of the Institute through the scientific productivity and excellence of its women scientists. The group organizes events and lectures for leadership development and to showcase the 2 FOCUS ON RESEARCH I Spring 2012 outstanding basic and clinical research led by female scientists across the country. For more information, please visit www.feinsteininstitute.org/Feinstein/ AWSM, or contact AWSM President Christine Metz, PhD, at cmetz@nshs. edu or AWSM Vice President Nadeen Chahine, PhD, at [email protected]. Christine Metz, PhD Nadeen Chahine, PhD Lengthening Kidney Dialysis Treatments Could Reduce Mortality K idney dialysis is a lifesaving treatment, but doctors have been frustrated by the high death rate among people who spend as much as a dozen hours a week hooked to machines that help flush fluid out of the body. Despite 40 years of experience with dialysis, the death rate in American dialysis centers is higher than in some countries in Europe and Asia, and a new study suggests one possible explanation: the treatment seems to thicken the blood, which in turn puts stress on blood vessels and could increase the risks for cardiovascular death. Two of the most common reasons that kidneys fail are hypertension and diabetes. Steven Fishbane, MD, vice president of Network Dialysis Services for North Shore-LIJ Health System and director of clinical research for the Department of Medicine at North Shore University Hospital and LIJ Medical Center, and his colleagues started looking at a variety of factors to explain the high death rate. With a pilot grant and a new device that measures blood viscosity, the researchers scanned blood vessels before, during and after kidney dialysis. They were surprised to find that there was a surge in thickness of the blood — in both large and small vessels — that occurs during dialysis. The thickness was observed more often in patients who retained a lot of fluid between treatments. It is not clear what causes this thickening. Steven Fishbane, MD Dr. Fishbane has his suspicions. The average life span for a dialysis patient in the US is significantly shorter than in European and Asian countries. One possible explanation is the use of shorter dialysis sessions. Extending the treatment over a longer period of time could be less stressful to the blood vessels, researchers say. Dr. Fishbane and his colleagues are collaborating with a team in France to test blood thickness in European patients. Dr. Fishbane presented his findings at the American Society of Nephrology annual meeting in Philadelphia last November. “We may be delivering dialysis the wrong way,” said Dr. Fishbane. There are about 300,000 people in the US on dialysis, and the numbers are expected to rises to 500,000 in the next 20 years as rates of diabetes and obesity continue to climb. The Zucker Hillside Hospital to Host Chinese Psychiatrist Xin Yu, MD, a clinical professor of psychiatry at the Institute of Mental Health in Beijing who has served as president of John Kane, MD the Chinese Psychiatrist Association, will be a visiting scientist at The Zucker Hillside Hospital. During his three-month tenure, Dr. Yu, one of the leading psychiatrists in China, will learn about services offered to people with schizophrenia and other serious mental illnesses, as well as the research being conducted by our investigators. Following medical school in Beijing, he completed fellowships at the University of Melbourne, Johns Hopkins University and Harvard University. But no matter how much Dr. Yu understands the biology of mental illness, he works in a country with very limited psychiatric resources. Even 35 years after the end of the Cultural Revolution, some estimates suggest that there is one psychiatrist for every 83,000 people. With few alternatives, families have been known to lock their loved ones away to keep them from harming other people. John Kane, MD, chairman of psychiatry at Zucker Hillside, and Dr. Yu are proposing to study treatment options in rural communities of China. They want to test a long-acting injectable antipsychotic to see if it can improve outcomes for patients with schizophrenia treated in regions with few healthcare resources. “This could have a dramatic impact,” said Dr. Kane. SETTING NEW STANDARDS IN HEALTHCARE I feinsteininstitute.org 3 d iscovery zone Making Sense of Perfect Pitch Mesenchymal Stem Cell Research S cientists are testing whether stem cells from bone marrow can help repair damaged intervertebral discs in the spine. The idea made perfect sense to Nadeen Chahine, PhD, as assistant investigator in the Biomechanics and Bioengineering Laboratory at The Feinstein Institute for Medical Research. But the question that had never been asked is whether delivering the stem cells into the disc early in the injury process, or a month later, will make a difference in the level of repair. Would the timing of stem cell treatment affect the strength of the disc and correct the damage? Dr. Chahine used a laboratory model of disc injury and injected a million stem cells isolated from bone marrow into the injured disc. The cells were delivered at day 3, or during the second and fourth week postinjury. Dr. Chahine thought that the stem cells administered during the initial days of the injury would not work as well because the environment was flooded with inflammatory molecules sent in to help repair the tissue. But they found quite the opposite. The disc was stronger when treated only a few days after the injury when there were higher inflammatory changes in the tissue. And the tissue repaired after a month’s delay was Nadeen Chahine, PhD more damaged. This might not be great news for disc repair. Many patients see their doctor after the injury has set in and it would be challenging to get people in within days of the acute injury. Still, the scientists will now repeat the study using anti-inflammatory medication before and right after the injury to confirm the role of inflammation in therapeutic response of stem cells. “We need to understand how to optimize the conditions under which we can expect a beneficial therapy for stem cell repair,” said Dr. Chahine. The study was selected for the Best Abstracts session at the Global Spine Congress in March 2011 in Barcelona, Spain. Peter K. Gregersen, MD, is a geneticist and musician who has been using his skills in the laboratory to identify Peter K. Gregersen, MD genes for perfect pitch, an uncommon ability to recognize a musical note without relying on a reference note. People with perfect pitch can spot a B-flat or a C-sharp within a second of hearing the note. Researchers suspect there are genes that confer the ability to have perfect pitch. Dr. Gregersen, chair of the Robert S. Boas Center for Genomics and Human Genetics, and his colleagues have set up a Webbased study to assess perfect pitch, also called absolute pitch, and they are collecting DNA samples to hunt for perfect pitch genes. People who join the study will be able to take a seven-minute test that will determine whether they have absolute pitch. Until recently, researchers relied on self-reports of perfect pitch to identify and test people. Now they are testing a new tool that allows them to move into the general population to find people with perfect pitch who may never have had musical training, but have an uncanny ability to label all sorts of notes in real time. The scientists are also working with colleagues in China to collaborate on a study of absolute pitch using the new testing format. For more information, contact study coordinator Elena Kowalsky at [email protected], visit absolutepitchstudy.com or call 1-888-897-3098. SETTING NEW STANDARDS IN HEALTHCARE I feinsteininstitute.org 4 Arou n d t h e ins titute Better Management of Tourette Syndrome Cathy Budman, MD, an internationally renowned expert in the treatment of Tourette syndrome, has been director of the Movement Disorders Program in Psychiatry at North Shore University Hospital since 1990. She is a primary investigator for a number of clinical treatment trials to help reduce the disruptive symptoms of this debilitating neuropsychiatric disorder. Tourette syndrome is marked by multiple sudden movements or vocalizations that can include repetitive eye blinking, facial twitching, shoulder shrugging, throat clearing, coughing or grunting. Much less commonly, Tourette syndrome may involve more complex behaviors including blurting out inappropriate or vulgar words. Last summer, Dr. Budman helped organize a training workshop on Comprehensive Behavioral Interventions for Tics (CBIT) by Douglas Woods, PhD, of the University of Wisconsin in Milwaukee, to teach a new type of behavioral intervention to therapists. The idea behind CBIT is to teach patients how to manage and better inhibit their tics by learning how to recognize and regulate the urges that precede tic symptoms. While many children and adults with tic disorders could potentially benefit from this nonmedication treatment, few professionals have adequate training to deliver CBIT. Now more than 42 staff members from North Shore-LIJ Health System have received training in this cutting-edge therapy. Dr. Budman is a pioneer in the study of explosive outbursts in Tourette syndrome. She is also part of a team of investigators studying the treatment of Tourette syndrome and Attention Deficit Hyperactivity Disorder (ADHD), which commonly occur together. She and her coinvestigators showed that the use of psychostimulants to treat ADHD does not worsen tics, as had been previously thought. Dr. Budman was also an investigator in the EPI-PANDAS study, a multisite epidemiological study investigating the link between Group A beta hemolytic streptococcal infection and tics. She was involved in a study group that tested atomoxetine for treatment of ADHD in children with tic disorders. Dr. Budman’s clinic is one of only three sites in the US now conducting a phase II study of a novel agent for treatment of tics in adults. Two additional studies of investigational agents for treatment of tics in adults are planned in 2012. Dr. Budman is conducting a multicenter, randomized, double-blind, placebo-controlled study with a follow-up openlabel multicenter study that will evaluate safety Cathy Budman, MD and efficacy of flexible-dose, once-weekly oral aripriprazole in children and adolescents with Tourette syndrome. Dr. Budman is also a member of the International Genetics Consortium for Tourette syndrome and is currently recruiting subjects for participation in genetic studies of Tourette syndrome. If you are interested in learning more about treatment of Tourette syndrome and its associated disorders or if you are interested in participating in existing research studies of Tourette syndrome at North Shore-LIJ Health System, contact Cathy Budman, MD, at 516-562-3223. ABAI Honors Vincent Bonagura for MOC Reciprocity Milestone At their annual October meeting in Nashville, Tenn., the board of directors of the American Board of Allergy and Immunology (ABAI) honored Vincent Bonagura, MD, for his work in establishing Maintenance of Certification (MOC) reciprocity between ABAI and the American Board of Pediatrics (ABP). Dr. Bonagura, who served as an ABAI director from 2002 to 2007, and ABAI representative to ABP from 2005 to 2010, was presented with an award for the integral role he played in shaping the mutual relationship between the boards. As a result of his work, diplomates of ABAI and ABP are now able to participate in and complete interchangeable aspects of their respective MOC programs more efficiently without duplicating efforts. Dr. Bonagura is the associate chair, Department of Pediatrics for Vincent Bonagura, MD Academic Affairs; chief, Division of Allergy/Immunology; Jack Hausman Professor of Pediatrics; professor of molecular medicine, Hofstra North Shore-LIJ School of Medicine; and an investigator at The Feinstein Institute for Medical Research. SETTING NEW STANDARDS IN HEALTHCARE I feinsteininstitute.org 5 Michael Dowling President and CEO North Shore-LIJ Health System Kevin J. Tracey, MD focus on Research President The Feinstein Institute for Medical Research Terry Lynam Vice President, Public Relations Jamie Talan Science Writer NORTH SHORE-LONG ISLAND JEWISH HEALTH SYSTEM INC. The Feinstein Institute for Medical Research 350 Community Drive Manhasset, New York 11030 Postmaster: Please deliver within Feb. 27 - March 2 Non-Profit Org U.S. Postage PAID NSLIJHS Focus on Research is published by The Feinstein Institute for Medical Research in conjunction with the Public Relations Department of the North Shore-LIJ Health System. The information provided in this publication is intended to educate and inform readers about biomedical research that may be pertinent to their health and is not a substitute for consultation with a personal physician. For more information about this publication, call 516-465-8314. Produced by Krames StayWell, Evanston, IL. © 2012. Printed in USA. Need to find a doctor? 1-888-321-DOCS • North Shore-LIJ Health System Unraveling the Web of Alzheimer’s Disease A few years ago, scientists at the Litwin-Zucker Research Center for the Study of Alzheimer’s Disease at The Feinstein Institute for Medical Research identified a genetic variant that increases the risk for Alzheimer’s disease by about 11 percent. The gene is called calcium homeostasis modulator 1 (CALHM1), and it makes a protein that helps regulate the brain’ s calcium channels. Calcium is critical to the health of cells. CALHM1 also seems to help control the metabolism of a protein called amyloid-beta that builds up in the brains of Alzheimer’s patients. The specific variant of CALHM1 that the scientists are interested in is thought to functionally impair CALHM1 and lead to an increase in the accumulation of amyloid-beta in the brain. CALHM1 P86L is a common genetic variant. About 45 percent of the population has at least one copy, and eight or nine percent have two copies. While there is ample research being done to understand the role this gene has in Alzheimer’s, there is evidence that people with the CALHM1 P86L risk allele may naturally make more amyloid beta, which means that more of it has to be cleared out of the brain into the cerebrospinal fluid. The work will be performed by Philippe Marambaud, PhD, Jeremy Koppel, MD, and their colleagues in the Alzheimer’s research center. Exactly how CALHM11 leads to Alzheimer’s was the next step. The scientists analyzed the CALHM1 P86L gene in 203 Alzheimer’s patients (in collaboration with German colleagues), and 46 young, healthy and cognitively fit people with at least one family member with Alzheimer’s. The two groups, one healthy and one with Alzheimer’s, would allow the researchers to test the power of the variant in the disease process. In a study published in Molecular Medicine, the scientists reported that there was not an association between the cerebrospinal fluid amyloid-beta levels in the Alzheimer’s patient sample but there was a significant association with the risk allele in the healthy younger people at risk for Alzheimer’s. “These tests indicated that in the cognitively healthy cohort, CALHM1 genotype had a significant effect on amyloid-beta levels,” said Dr. Marambaud. It is still not clear how this affects the development of Alzheimer’s. Researchers will continue to follow the young, healthy volunteers to see who develops Alzheimer’s and whether there are any changes in the CSF amyloid- beta levels that precede the development of symptoms. Other studies have shown that the CALHM1 P86L polymorphism seems to influence the timing of Philippe Marambaud, PhD the disease onset and not the disease itself. There is evidence that these types of protein changes in the blood or cerebrospinal fluid could be used to predict Alzheimer’s disease a decade or more before the first signs of memory loss appear. Hope lives here.SM northshorelij.com Need to find a doctor? Call 1-888-321-DOCS Please recycle this publication. NORTH SHORE-LIJ HEALTH SYSTEM HOSPITALS: NORTH SHORE UNIVERSITY HOSPITAL • LONG ISLAND JEWISH MEDICAL CENTER • COHEN CHILDREN’S MEDICAL CENTER OF NEW YORK • ZUCKER HILLSIDE • FRANKLIN • GLEN COVE • SYOSSET • PLAINVIEW • SOUTHSIDE • HUNTINGTON • FOREST HILLS • STATEN ISLAND UNIVERSITY HOSPITAL • LENOX HILL HOSPITAL • AFFILIATE: NASSAU UNIVERSITY MEDICAL CENTER 988M
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