Author Interviews, JAMA, Mental Health Research / 28.02.2020

MedicalResearch.com Interview with: Dr. Aristotle Voineskos MD, PhD, FRCPC Director, Slaight Family Centre for Youth in Transition and Head, Kimel Family Translational Imaging-Genetics Laboratory Campbell Family Mental Health Research Institute CAMH University of Toronto MedicalResearch.com: What is the background for this study? Response: Uncontrolled studies in humans have shown conflicting results regarding effects of antipsychotic medications on brain structure. Recent studies in animals (e.g. rats and non-human primates) show that these medications may be associated with brain volume loss. To date, our knowledge of the effects of antipsychotic medications on brain structure in humans have been limited by the lack of a double-blind, randomized, placebo-controlled trial with brain imaging. Ours is the first such study. It is considered unethical to do such a study in people with schizophrenia, because of the life-saving benefits of these medications in this illness. However, in people with depression also experiencing psychosis, it was possible to do such a study once people experienced remission from their illness. (more…)
Author Interviews, Brigham & Women's - Harvard, Cognitive Issues, Social Issues / 27.02.2020

MedicalResearch.com Interview with: Nancy J. Donovan, M.D. Chief, Division of Geriatric Psychiatry Brigham and Women’s Hospital Assistant Professor of Psychiatry Harvard Medical School Boston, MA 02115  MedicalResearch.com: What is the background for this study? Response: Prior research has shown that widowed older adults are more likely to experience cognitive decline than those who are married. However, there have been no prior studies of widowhood as a risk factor for cognitive decline due to Alzheimer’s disease, the most common cause of severe cognitive impairment. (more…)
Alzheimer's - Dementia, Author Interviews, Biomarkers, Heart Disease / 25.02.2020

MedicalResearch.com Interview with: Prof. Konstantinos Stellos, MD, DM, MRCP, DSc, FAHA, FESC Professor of Medicine, Chair of Cardiovascular Medicine, Chair of Epitranscriptomics Lead, Vascular Biology & Medicine Theme Hon. Consultant Cardiologist, Newcastle Hospitals NHS Foundation Trust Biosciences Institute Faculty of Medical Sciences Newcastle University MedicalResearch.com: What is the background for this seminar? Can you tell us a little about how amyloid is made and stored? Response: Patients are afraid that they may die due to a heart attack - a major cause of death worldwide- or if they live long they may get dementia compromising severely their quality of life in their last years of life. Many years ago we asked the question whether there is a link between these two ageing-associated diseases. For this reason we studied the clinical value of amyloid-beta peptides in patients with coronary heart disease. We chose to study the amyloid-beta peptides, which are the cleavage product of the beta- and gamma-secretases of the mother protein amyloid precursor protein, because amyloid-beta plaques in brain is the hallmark of Alzheimer's disease. Following amyloid precursor protein (APP) gene transcription, APP is cleaved in the nonamyloidogenic pathway (plasma membrane) by α- and γ- secretases or in the amyloidogenic pathway (endosomes) by β- and γ- secretases. The later pathway generates amyloid beta (Αβ) peptides that are released extracellularly. Αβ accumulation in blood or tissues may result from enhanced production/cleavage or by impaired degradation and/or clearance. The related mechanisms are depicted in Figure 2 of our publication in JACC: http://www.onlinejacc.org/content/75/8/952  (more…)
Author Interviews, Mental Health Research / 25.02.2020

MedicalResearch.com Interview with: Leonardo Christov-Moore, Ph.D. Postdoctoral Scholar Brain and Creativity Institute University of Southern California MedicalResearch.com: What is the background for this study? Response: We've known for some time that empathy has both bottom-up, affective, somatomotor components, that let us quickly feel and internally simulate other peoples' internal states, and more cognitive, top-down components through which we make conscious inferences about others' beliefs, intentions and internal states. And there is interesting work suggesting that in many cases, these components work together. In our work, we took this idea further to propose that they exist in constant interaction, with the bottom-up systems  providing information that informs the top-down processes (aiding in our inference), which in turn provide modulation and control to the bottom-up processes (modulating the extent to which we "resonate" with others based on context, affiliation, etc.). Specifically, we found that you could predict many aspects of prosocial decision-making ( a top-down task) from bottom-up and top-down systems' interaction during simple bottom-up empathy tasks (passively observing someone experience emotion or pain). This led us to hypothesize that peoples' levels of empathic concern for others are dictated by stable patterns of interaction between these systems. In the current study, we made a strong test of this hypothesis: if these empathy-predicting patterns of interaction are stable across task demands, we should be able to observe them (and predict empathic concern from them) even when the brain is not doing anything ostensibly related to empathy! So that's what we did. (more…)
Author Interviews, Cognitive Issues / 24.02.2020

MedicalResearch.com Interview with: Terese Sara Høj Jørgensen PhD Assistant Professor Faculty of Health and Medical Sciences University of Copenhagen MedicalResearch.com: What is the background for this study? Response: Dementia may develop as a result of both genetics and environmental exposures operating throughout the life course, and the risk of dementia may already be established early in life. Body height has a strong genetic component and is at the same time influenced by environmental factors early in life. Body height is an expression of growth early in life and a taller body height could express that the body has had an optimal development. At the same time, a shorter body height could be an indicator of harmful exposures early in life. A few smaller studies have identified a link between body height and dementia. However, rather than being a risk factor of dementia in itself, body height is likely an indicator of harmful exposures early in life and hereby linked to dementia. Body growth could furthermore be linked to dementia as an indicator of brain and cognitive reserve. Thus, to understand the relationship between body height and dementia, large scale high-quality longitudinal studies exploring the impact of early environmental factors and genetics to explain the link between body height and dementia were needed prior to this study. (more…)
Author Interviews, Schizophrenia / 12.02.2020

MedicalResearch.com Interview with: Andrew Satlin, M.D. Chief Medical Officer Intra-Cellular Therapies MedicalResearch.com: What is the background for this announcement? How does CAPLYTA (lumateperone) differ from other medications for schizophrenia? Response: Schizophrenia is a serious mental illness and complex disease that presents itself differently in various patients. Antipsychotics are associated with side effects such as weight gain and metabolic disturbances and movement disorders. Many patients often discontinue treatment as a result of these side effects. The U.S. Food and Drug Administration (FDA) has approved CAPLTA (lumateperone) for the treatment of schizophrenia in adults. We are excited to provide a new option for treating patients living with schizophrenia with an established efficacy and a favorable weight, metabolic and motor side effect profile. (more…)
Alzheimer's - Dementia, Author Interviews, Cognitive Issues, McGill, Neurology, Technology / 28.01.2020

MedicalResearch.com Interview with: Yasser Iturria-Medina PhD Assistant Professor, Department of Neurology and Neurosurgery Associate member of the Ludmer Centre for Neuroinformatics and Mental Health McConnell Brain Imaging Centre McGill University MedicalResearch.com: What is the background for this study? Response: As background, two main points:
  • Almost all molecular (gene expression) analyses performed in neurodegeneration are based on snapshots data, taking at one or a few time points covering the disease's large evolution. Because neurodegenerative diseases take decades to develop, until now we didn't have a dynamical characterization of these diseases. Our study tries to overcome such limitation, proposing a data-driven methodology to study long term dynamical changes associated to disease.
Also, we still lacked robust minimally invasive and low-cost biomarkers of individual neuropathological progression. Our method is able to offer both in-vivo and post-mortem disease staging highly predictive of neuropathological and clinical alterations. (more…)
Author Interviews, Depression, Dermatology, Pediatrics / 21.01.2020

MedicalResearch.com Interview with: Dr. Jonathan L. Silverberg MD PhD MPH Director of Clinical Research and Contact Dermatitis Associate Professor of Dermatology George Washington University School of Medicine and Health Sciences Washington, DC  MedicalResearch.com: What is the background for this study? Response: We previously found that children from single parent families, and unsafe or unsupportive neighborhoods are more likely to have atopic dermatitis. Parents in these settings may experience greater psychosocial distress and higher rates of depression in the post-partum period and beyond. As such, we sought to understand the relationship of maternal depression with atopic dermatitis in their children. (more…)
Author Interviews, Breast Cancer, Cancer Research, Cognitive Issues / 20.01.2020

MedicalResearch.com Interview with: Annelise Madison Lead author of the study Graduate Student in Clinical Psychology Ohio State MedicalResearch.com: What is the background for this study? Response: Recently, there have been some reports of cognitive problems among those using proton pump inhibitors (PPIs). Some breast cancer survivors use PPIs during and after treatment to manage gastrointestinal side effects of cancer treatment or to prevent damage to the gut lining. We were interested in whether PPI use among breast cancer survivors related to cognitive problems. We conducted secondary analyses on data from three studies with breast cancer survivors. We found that breast cancer survivors taking PPIs reported cognitive problems that were between 20-29% worse than those reported by non-users. (more…)
Author Interviews, Cognitive Issues, Genetic Research / 15.01.2020

MedicalResearch.com Interview with: Haining Zhu, PhD Department of Molecular and Cellular Biochemistry University of Kentucky, Lexington, Kentucky MedicalResearch.com: What is the background for this study? Response: Frontotemporal dementia is the most common type of early onset dementia impacting people between ages 40 and 65. It affects the frontal and temporal lobes of the brain, which leads to behavior and personality changes, difficulty speaking and writing, and eventual memory deterioration. A subgroup of patients with frontotemporal dementia have a specific genetic mutation that prevents brain cells from making a protein called progranulin. Although progranulin is not well understood, its absence is linked to the disease. (more…)
Author Interviews, Dermatology, Mental Health Research, Pediatrics / 15.01.2020

MedicalResearch.com Interview with: Lucia Diaz, M.D., is chief of pediatric dermatology, dermatology residency associate program director and assistant professor of medicine and pediatrics at Dell Medical School. She is also co-director of the dermatology-rheumatology combined clinic at Dell Children’s Medical Center. Sasha Jaquez, Ph.D. is a pediatric psychologist at Dell Children's Medical School/Dell Children's Medical Center and specializes in seeing children with chronic medical illness, including skin disorders.     MedicalResearch.com: What is the background for this study? Response: Trichotillomania (TTM) can be an extremely disabling chronic condition that impacts the psychosocial development of children. It is classified by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) as an obsessive-compulsive disorder, where a person recurrently pulls out hair from any region of their body resulting in hair loss. Recognizing this disorder and being informed of treatment options allows medical providers to correctly diagnose and intervene early in the disease course. We reviewed the psychosocial impacts of pediatric trichotillomania and the current evidence-based interventions used in the population.  (more…)
Author Interviews, Bipolar Disorder, Depression, JAMA, Schizophrenia, Weight Research / 08.01.2020

MedicalResearch.com Interview with: Shahram Bahrami, PhD NORMENT Centre, Institute of Clinical Medicine Division of Mental Health and Addiction Oslo University Hospital Oslo, Norway  MedicalResearch.com: What is the background for this study? Response: We know that patients with severe mental disorders such as schizophrenia, bipolar disorder and major depression have shorter life span than the rest of the population, largely due to comorbid cardiovascular diseases. The increased risk seems related to lifestyle including diet and physical activity and medicines, while the mechanisms are not fully understood. Different studies have shown increased weight (high body mass index) in many people with mental disorders. Yet very little is known about genetic variants jointly in influencing major psychiatric disorders and body mass index. Thus, we investigated if there are overlapping genetic risk variants between body mass index and the mental disorders schizophrenia, bipolar disorders and major depression.  (more…)
Accidents & Violence, Author Interviews, Brain Injury, JAMA, Pediatrics, UCSF / 08.01.2020

MedicalResearch.com Interview with: Benjamin N. Breyer MD, MAS, FACS Associate Professor Departments of Urology and Epidemiology and Biostatistics University of California, San Francisco Vice-Chair of Urology Chief of Urology, Zuckerberg San Francisco General Hospital and Trauma Center Director, UCSF Male Genitourinary Reconstruction and Trauma Surgery Fellowship MedicalResearch.com: What is the background for this study? Response: There has been a large increase in upright scooter usage among adults as a mode of transportation. It's convenient for commuters and may encourage greater use of public transit leading to less car traffic in cities. (more…)
Alzheimer's - Dementia, Author Interviews, Technology / 08.01.2020

MedicalResearch.com Interview with: Dr.med.univ. Roland Beisteiner Department of Neurology Laboratory for Functional Brain Diagnostics and Therapy High Field MR Center, Medical University of Vienna Vienna, Austria MedicalResearch.com: What is the background for this study? What are the main findings? Response: The background is the development of a new brain therapy which allows to support brain regeneration by activation of neurons with pulsed ultrasound. Main findings are that Alzheimer's patients improve their memory up to 3 months. (more…)
Alzheimer's - Dementia, Author Interviews, Brain Injury, Medical Imaging, UCSF / 06.01.2020

MedicalResearch.com Interview with: William G. Mantyh, MD Clinical Fellow, UCSF Memory and Aging Center Weill Institute for Neurosciences UCSF MedicalResearch.com: What is the background for this study? Response: Similar to Alzheimer’s disease (AD) and other dementing illnesses, Chronic Traumatic Encephalopathy (CTE) is a progressive neurodegenerative condition associated with abnormally folded tau protein in the brain. CTE is thought to be caused by exposure to repetitive head trauma, and recently has been the subject of intense media coverage given the frequency of CTE found in brains of deceased former American professional football players. CTE is almost impossible to confidently diagnose during life as the symptoms are diverse and vary from patient-to-patient. Symptoms can include impairments in memory, multi-tasking, behavioral/mood regulation, and movement. As there are no blood, imaging, or other tests for this disease, one active area of research is developing a test to help doctors diagnose this condition. As tau tangles in CTE are similar in many respects to those in Alzheimer’s disease, there was hope that PET tracers that detect tau in AD might also work in CTE. Flortaucipir (FTP) is probably the most widely used tau tracer in AD. Recent work has reported some signal from FTP-PET in symptomatic former NFL players and other patients at risk for CTE (Stern et al. New Engl Jour Med 2019; Lesman-Segev et al. Neuroimage Clinical 2019). The overall signal was lower than that observed in Alzheimer’s disease, and, in lieu of correlations with post-mortem findings, it was unclear how well FTP binds to tau pathology in CTE. (more…)
Author Interviews, Critical Care - Intensive Care - ICUs, Mental Health Research, Opiods, Pediatrics / 23.12.2019

MedicalResearch.com Interview with: Megan Land, MD, PGY 6 Pediatric Critical Care Medicine Fellowship Emory University School of Medicine MedicalResearch.com: What is the background for this study?
  • Much of the research on the opioid crisis has focused on the impact to adults; however, children and adolescents in the US are also negatively affected by the opioid epidemic.
  • The percentage of children admitted to a pediatric intensive care unit increased over the study period as the clinical effects of the opioid ingestions increased in severity.
  • The primary intent of opioid ingestions was suspected suicide attempts in adolescents resulting in increasing admissions to a psychiatric hospital.
  • Opioids associated with the highest odds of needing an intervention in an intensive care unit were methadone, fentanyl, and heroin. 
(more…)
Abuse and Neglect, Alzheimer's - Dementia, Autism, Medical Imaging, Mental Health Research, MRI, Multiple Sclerosis, Neurology, Technology / 23.12.2019

MedicalResearch.com Interview with: Sebastian Magda, Ph.D Director of Science & Engineering CorTechs Labs, Inc MedicalResearch.com: What is the background for this study? Response: Previous studies have shown that the changes of brain structure volume and/or metabolic activity are associated with various neurological diseases. We have created an artificial intelligence clinical decision support tool based on brain volumetric and PET metabolic activity measurements as well as other clinical measurements. (more…)
Aging, Alzheimer's - Dementia, Author Interviews, MRI, Technology / 23.12.2019

MedicalResearch.com Interview with: Dr. Weidong Luo Principal Scientist CorTechs Labs  MedicalResearch.com: What is the background for this study? Response: We were interested in whether or not we can predict the age of the brain accurately from T1 weighted MRI and/or fluorodeoxyglucose (FDG) PET scans using the brain volumetric and the relative metabolic activity. The uptake of FDG is a clinical marker used to measure the uptake of glucose and therefore metabolism. Also, we were interested in the patterns of the predicted ages for Alzheimer's disease (AD) and minor cognitive impairment (MCI) subjects when using their brain measurements for age prediction in the normal brain age model.   (more…)
Alzheimer's - Dementia, Author Interviews, Environmental Risks / 20.12.2019

MedicalResearch.com Interview with: Professor Esme Fuller-Thomson, PhD Director of the Institute for Life Course & Aging, Factor-Inwentash Faculty of Social Work Cross-appointed to the Faculty of Medicine University of Toronto Canada MedicalResearch.com: What is the background for this study? Response: Several studies from the US, Canada, and Europe suggest a promising downward trend in the incidence and prevalence of dementia. Important risk factors for dementia, such as mid-life obesity and mid-life diabetes, have been increasing rapidly, so the decline in dementia incidence is particularly perplexing. (more…)
Author Interviews, Brain Injury, Exercise - Fitness, JAMA / 18.12.2019

MedicalResearch.com Interview with: John Breck, DO,  CAQSM Medical Services at University of Colorado, Boulder MedicalResearch.com: What is the background for this study? Response: To date, most concussion research has focused on sport-related concussion, though it is known that a substantial number of concussions occur outside of participating in sport. Focusing solely on sport-related concussion may result in an underestimation of the underlying incidence and prevalence of concussion in the general population and leads to the widely held perception that most concussions are sport-related. An understudied population at risk for concussion are United States undergraduate college students.  (more…)
Author Interviews, Brigham & Women's - Harvard, Cognitive Issues, JAMA, Supplements / 16.12.2019

MedicalResearch.com Interview with: Pieter A. Cohen, MD Department of Medicine, Cambridge Health Alliance Somerville, Massachusetts Harvard Medical School Boston, Massachusetts MedicalResearch.com: What is the background for this study? Response: There has been increasing interest in the use of over-the-counter supplements to help improve memory and cognitive function.  However, prior studies have suggested that these types of supplements might contain unapproved investigational drugs. (more…)
Author Interviews, Autism, Neurology / 11.12.2019

MedicalResearch.com Interview with: Dr. Neil Dawson PhD Senior Lecturer Lancaster University MedicalResearch.com: What is the background for this study? Response: Deletions on chromosome 2p16.3, involving deletion of the NEUREXIN1 gene, dramatically increase the risk of developing a wide range of neurodevelopmental disorders including autism, Tourette’s syndrome and schizophrenia. We don’t fully understand the mechanisms involved. In our study we wanted to understand how the genetic deletion impacts on brain function and the ability of brain regions to communicate with one another, as these are known to be impaired in these neurodevelopmental disorders. We also wanted to determine how the genetic deletion impacts on the function of neurotransmitter systems involved in these disorders, and whether drugs targeting these neurotransmitter systems could restore some of the deficits in brain function seen. (more…)
Author Interviews, Autism, Genetic Research, Nature, Pediatrics / 10.12.2019

MedicalResearch.com Interview with: Dr. Stephen Scherer, PhD, FRSC Senior Scientist, Genetics & Genome Biology Director, The Centre for Applied Genomics SickKids Hospital Toronto MedicalResearch.com: What is the background for this study? Response: One of the most common questions we get from parents with a child with autism is, "what is the likelihood of having a second or third child with autism, and what is the chance others in our family will have kids with autism?". To help provide answers to these questions, we started the infant (or baby) siblings study ten years ago. Families having an older sibling with a diagnosis of autism were invited to enroll their next born for assessment and following to see if they also developed autism, and what the likelihood of that happening was. Biological samples like blood, and DNA from blood, were also collected and tested.  (more…)
Author Interviews, Depression, JAMA / 30.11.2019

MedicalResearch.com Interview with: Karina Pereira-Lima, PhD Department of Psychiatry, University of Michigan Medical School, Ann Arbor Department of Psychiatry, Federal University of São Paulo, São Paulo, Brazil MedicalResearch.com: What is the background for this study? Response: Questions regarding the magnitude and direction of the associations between physician depressive symptoms and medical errors remain open in recent literature. By pooling data from 11 studies involving 21,517 physicians, we were able to verify that depressive symptoms among physicians were associated with increased risk of reporting medical errors (RR, 1.95; 95% CI, 1.63 – 2.33). (more…)
Accidents & Violence, Author Interviews, PTSD, Surgical Research / 20.11.2019

MedicalResearch.com Interview with: Michael A. Vella, M.D., M.B.A. Assistant Professor of Surgery Division of Acute Care Surgery and Trauma University of Rochester School of Medicine and Dentistry MedicalResearch.com: What is the background for this study? Response: There is a lot of (appropriate) focus on the mortality statistics related to gun violence, but sometimes we forget about the large number of survivors of gunshot wounds.  We wanted to specifically look at the long term physical and mental health outcomes in this patient population. (more…)
Author Interviews, Environmental Risks, JAMA, Pediatrics, Schizophrenia / 04.11.2019

MedicalResearch.com Interview with: Henriette Thisted Horsdal Senior Researcher Department of Economics and Business Economics AARHUS University Henriette Thisted Horsdal PhD Senior Researcher Department of Economics and Business Economics AARHUS University  MedicalResearch.com: What is the background for this study? Response: Recent studies have suggested that exposure to nitrogen dioxide during childhood is associated with elevated risk of subsequently developing schizophrenia. We know that schizophrenia has a genetic component, and that individuals with higher genetic loading for schizophrenia tend to live in more densely urban areas. It is not known whether the increased risk associated with exposure to nitrogen dioxide during childhood is owing to a greater genetic liability among those exposed to highest nitrogen dioxide levels. Exposure to nitrogen dioxide during childhood and genetic liability (as measured by a polygenic risk score) for schizophrenia were independently associated with increased schizophrenia risk.  (more…)
Author Interviews, Biomarkers, Schizophrenia / 29.10.2019

MedicalResearch.com Interview with: Dr.  Takeo Yoshikawa MD PhD RIKEN Center for Brain Science Japan MedicalResearch.com: What is the background for this study? What are the main findings?
  • Currently available drugs for schizophrenia are the dopamine D2 receptor blockers. These compounds were serendipitously discovered over half-century ago. But about 30% of schizophrenia are resistant to the dopamine D2 receptor blockers. In spite of these conditions, pharmaceutical companies have abandoned the development of new drugs. This is because we do not know the principle of drug design.
  • Therefore, we need to understand the molecular underpinning of as-yet unknown schizophrenia pathophysiology. Schizophrenia is diagnosed by only patients’ symptoms, not by biological examination. To search for biological underpinning for schizophrenia using experimental animals, we thought that we should examine an endophenotype (biological trait) relevant to schizophrenia. Then we targeted prepulse (PPI) performance.
  • Here, dampened PPI is considered as a biological marker of psychiatric disorders, typically of schizophrenia. Importantly, PPI can be measured using the same behavioral paradigm between experimental animals and human.
  • C57BL/6 (B6) inbred mouse shows higher (better) prepulse inhibition (PPI) performance, while C3H/He (C3H) inbred mouse shows lowered (worse ) PPI. We premised that C3H mouse is “schizophrenia-prone” and B6 is not. To know the molecular basis for differential PPI levels between the two inbred mouse strains, we performed comprehensive protein expression level analysis (proteomics analysis) using the brains of B6 and C3H mice.
  • The expression levels of Mpst, a hydrogen sulfide (H2S)-producing enzyme, is elevated in C3H mouse compared to B6 mouse. Biochemical analysis also supported the elevated H2S production in C3H mouse compared to B6.
  • The examination of human samples including postmortem brains, iPS-derived neural stem cells (neurospheres) and hair follicle cells, gave evidence that H2S production system is indeed up-regulated in schizophrenia.
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Addiction, Author Interviews, Mental Health Research, Technology / 29.10.2019

MedicalResearch.com Interview with: Zsolt Demetrovics PhD and Orsolya Király PhD Department of Clinical Psychology and Addiction Institute of Psychology ELTE Eötvös Loránd University MedicalResearch.com: What is the background for this study? Response: Gaming disorder has recently been recognized by the World Health Organization (WHO) as a mental disorder. Research examining gaming motivations and mental health among video gamers and in relation with gaming disorder is increasing but different types of gamers such as recreational gamers and esport gamers are not commonly distinguished. Esport is form of electronic sport and refers to playing video games in a professional (competitive) manner in sports-like tournaments. Much like in the case of traditional sports, esport players and teams are sponsored, tournaments are broadcasted and followed by large audiences and have large financial prizes. Therefore, being an esports player in now a real career opportunity for teenagers and young adults who like playing video games.  (more…)