Author Interviews, Cognitive Issues, Heart Disease, JAMA, Stroke / 04.03.2019

MedicalResearch.com Interview with: Sarah Parish, MSc, DPhil Professor of Medical Statistics and Epidemiology MRC Population Health Research Unit Nuffield Department of Population Health University of Oxford MedicalResearch.com: What is the background for this study? Response: Acquiring reliable randomized evidence of the effects of cardiovascular interventions on cognitive decline is a priority. In this secondary analysis of 3 randomized intervention trials of cardiovascular event prevention, including 45 029 participants undergoing cognitive testing, we estimated the association of the avoidance of vascular events with differences in cognitive function in order to understand whether reports of non-significant results exclude worthwhile benefit.  (more…)
Author Interviews, Endocrinology, Pediatrics / 03.03.2019

MedicalResearch.com Interview with: Yehuda Limony, MD, MSc Pediatric Endocrinology Unit Faculty of Health Sciences Ben-Gurion University of the Negev Clalit Health Services Beer-Sheva, Israel  MedicalResearch.com: What is the background for this study? Response: The variability of the onset age of puberty is the subject of many studies in numerous disciplines; nonetheless, the timing of puberty remains an enigma. The conventional paradigm is that the time of onset of puberty is genetically determined even though genome-wide association studies explain only a very low percentage of the physiologic variability. It is commonly believed, therefore, that many environmental factors interfere with the genetics of timing of puberty. On the other hand, children grow toward an adult height that is the standardized average of parents' height called "target height". That is why children are usually similar in height to parents. This targeted growth process is evident especially in children whose height percentile in childhood is different from their target height percentile (we called this difference the "height gap"). It is known that the timing of puberty is associated with adult height: earlier puberty causes shorter adult height and vice versa. We hypothesized that the targeted process of growth involves adaptation of the age of onset of puberty in accordance with the height gap. (more…)
Alzheimer's - Dementia, Author Interviews, JAMA, Pharmacology, University of Pittsburgh / 01.03.2019

MedicalResearch.com Interview with: Alvaro San-Juan-Rodriguez, PharmD Pharmacoeconomics, Outcomes and Pharmacoanalytics Research Fellow Pharmacy and Therapeutics School of Pharmacy University of Pittsburgh MedicalResearch.com: What are the main findings? Response: Currently, there are 4 antidementia drugs approved by the FDA for the treatment of Alzheimer’s disease, including 3 acetylcholinesterase inhibitors (AChEIs)—donepezil, rivastigmine, and galantamine—and the N-methyl-D-aspartic receptor antagonist memantine. On the one hand, evidence about the effect of these drugs at delaying nursing home admission is still sparse and conflicting. On the other, all these antidementia medications have been associated with several cardiovascular side effects, such as bradycardia, ventricular tachycardia, syncope, QT interval prolongation, atrioventricular block or even myocardial infarction. In this study, we aimed to compare time to nursing home admission and time to cardiovascular side effects across all drug therapies available for the treatment of Alzheimer’s disease. In doing so, we used 2006-2014 medical and pharmacy claims data from Medicare Part D beneficiaries with a new diagnosis Alzheimer’s disease who initiated antidementia drug therapy. (more…)
Author Interviews, Biomarkers, CT Scanning, JAMA, Lung Cancer, Medical Imaging / 01.03.2019

MedicalResearch.com Interview with: Martin C. Tammemägi PhD Senior Scientist Cancer Care Ontario | Prevention & Cancer Control Scientific Lead Lung Cancer Screening Pilot for People at High Risk Professor (Epidemiology) | Brock University Department of Health Sciences Ontario, Canada MedicalResearch.com: What is the background for this study? Response: Some prediction models can accurately predict lung cancer risk (probability of developing lung cancer during a specified time). Good model predictors include sociodemographic, medical and exposure variables. In recent years, low dose computed tomography (LDCT) lung cancer screening has become widespread in trials, pilots, demonstration studies, and public health practice. It appears that screening results provides added valuable, independent predictive information regarding future lung cancer risk, aside from the lung cancers directly detected from the diagnostic investigations resulting from positive screens. (more…)
Author Interviews, Cost of Health Care, JAMA, Outcomes & Safety / 01.03.2019

MedicalResearch.com Interview with: Mr. Tim Badgery-Parker ELS, BSc(Hons), MBiostat Research Fellow,Value in Health Care Division Menzies Centre for Health Policy MedicalResearch.com: What is the background for this study? Response: This is part of a large program of work at the Menzies Centre for Health Policy on low-value care in the Australian health system. We have previously published rates of low-value care in public hospitals in Australia’s most populous state, New South Wales, and a report on rates in the Australian private health insurance population is due for publication shortly. We have also done similar analyses for other Australian state health systems. This particular paper extends the basic measurement work to focus on what we call the ‘cascade’ effects. That is, looking beyond how much low-value care occurs to examine the consequence for patients and the health system of providing these low-value procedures. (more…)
Allergies, Author Interviews, Immunotherapy, JAMA, Pediatrics / 01.03.2019

MedicalResearch.com Interview with: Dr. Matthew Greenhawt Director, Food Challenge and Research Unit Children’s Hospital Colorado MedicalResearch.com: What is the background for this study? Response: In the US, nearly one million children suffer from a peanut allergy and severe reactions to food allergens are not uncommon – yet there is significant unmet need in the food allergy immunotherapy space, as there are no currently approved treatment options. That being said, we are encouraged by the efficacy and safety data, which support Viaskin Peanut as a convenient and well-tolerated potential treatment option for the peanut allergy. In the pivotal Phase III clinical trial (PEPITES) just published in The Journal of the American Medical Association (JAMA), Viaskin Peanut – the first epicutaneous immunotherapy (EPIT) in development that leverages the skin to activate the immune system – provided statistically significant desensitization in peanut-allergic children ages 4-11 years old. Patients who were treated with active therapy were more likely to have increased their eliciting dose to peanut (the amount of peanut protein ingested before an objective allergic reaction was seen during a double-blind, placebo-controlled food challenge) by a required amount as compared to patients treated with a placebo patch. The improvement suggests a reduced risk of allergic reaction to accidental peanut ingestion in the group treated with Viaskin Peanut, with no change seen in the placebo group. (more…)
Author Interviews, JAMA, Mental Health Research, Pharmacology / 01.03.2019

MedicalResearch.com Interview with: Kuan-Pin Su, MD, PhD China Medical University Taichung, Taiwan MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Delirium, also known as acute confusional state, is a serious disturbance in mental abilities that results in confused thinking and reduced awareness of the environment. Delirium can often be traced to one or more contributing factors, such as a severe or chronic illness, changes in metabolic balance (such as low sodium), medication, infection, surgery, or alcohol or drug intoxication or withdrawal. It’s critically important to identify and treat delirium because some of the contributing factors could be life-threatening. However, there is no sufficient evidence for choice of medication to treat or prevent the symptoms of delirium. A recent paper, Association of Delirium Response and Safety of Pharmacological Interventions for the Management and Prevention of Delirium A Network Meta-analysis, published in JAMA Psychiatry provides important findings of this missing piece in that important clinical uncertainty. The leading author, Professor Kuan-Pin Su, at the China Medical University in Taichung, Taiwan, concludes the main finding about treatment/prevention of delirium: “In this report, we found that the combination of haloperidol and lorazepam demonstrated the best option for treatment of delirium, while ramelteon for prevention against delirium.  (more…)
Author Interviews, Pediatrics, Sleep Disorders / 01.03.2019

MedicalResearch.com Interview with: Dr. Sakari Lemola Associate Professor Department of Psychology University of Warwick Coventry, UK  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Sufficient sleep of good quality is important for physical and mental health. Therefore, we are studying factors in people’s lives that may affect their sleep. In the present study we examined in particular how the birth of a child affects parents’ sleep. In detail, we used data on sleep of more than 4,600 parents in Germany who had a child between 2008 and 2015. During these years parents reported on their sleep in yearly interviews. We found that the birth of a child had quite drastic short-term effects on new mothers’ sleep, particularly during the first three months after birth. This is not a new finding; previous studies reported similar effects. What is new in the current study is that we compared sleep before pregnancy with sleep until up to 6 years after birth. We were surprised to see that sleep duration and sleep satisfaction were still decreased up to six years after birth. Six years after birth mothers and father still slept around 15-20 minutes less. (more…)
Author Interviews, Health Care Systems, Opiods / 28.02.2019

MedicalResearch.com Interview with: Cory E. Cronin PhD Department of Social and Public Health Ohio University College of Health Sciences and Professions Athens, Ohio MedicalResearch.com: What is the background for this study? What are the main findings?  Response: One of my primary areas of research is exploring how hospitals interact with their local communities. My own background is in health administration and sociology, and I have been working with colleagues in the Heritage College of Osteopathic Medicine here at Ohio University (Berkeley Franz, Dan Skinner and Zelalem Haile) to conduct a series of studies looking at questions related to these hospital-community interactions. This particular question occurred to us because of the timeliness of the opioid epidemic. In analyzing data collected from the American Hospital Association and other sources, we identified that the number of hospitals offering in-patient and out-patient substance use disorder services actually dropped in recent years, in spite of the rising number of overdoses due to opioid use. Other factors seemed to matter more in regard to whether a hospital offered these services or not. (more…)
Author Interviews, Infections, Nature / 28.02.2019

MedicalResearch.com Interview with: bats-mattaeMatae Ahn,MD-PhD candidate Emerging Infectious Diseases (EID) Programme Duke-NUS Medical School MedicalResearch.com: What is the background for this study? What are the main findings? Response: Bats, as the only flying mammals, are ‘special’ in their ability to host many highprofile viruses without suffering from disease. Such viruses including Ebola virus, Nipah virus and SARS or MERS coronaviruses, are highly pathogenic and often lethal to humans or animals, but yet cause no or minimal disease in bats. In addition, they also live very long relative to their small body size, despite elevated metabolic rates. However, what makes them special is still unclear. In this study, we discovered dampened NLRP3-mediated inflammation in bats in response to both ‘sterile’ stressors and infection with three different types of zoonotic RNA viruses. We identified multiple molecular mechanisms of altered bat NLRP3, a critical regulator of virus-induced and age-related inflammation, as the cause. Importantly, the reduced inflammation had no effect on the viral loads, which suggests enhanced immune tolerance to infection in bats. Bats’ natural ability to dampen stress-related and virusinduced inflammation may be a key mechanism underlying their long lifespans and unique viral reservoir status.  (more…)
Author Interviews, Orthopedics, Pharmacology, Rheumatology / 28.02.2019

MedicalResearch.com Interview with: Dr. Andrew Spitzer MD Co-director Joint Replacement Program Cedars-Sinai Orthopedic Center Los Angeles, CA MedicalResearch.com: What is the background for this study? How does this product differ from other steroid injections for inflammatory arthritis? Dr. Spitzer: Many patients receive repeat injections of intra-articular corticosteroids to manage recurrent osteoarthritis pain and other symptoms. However, in most clinical trials to date, patients only received a single corticosteroid injection, and patients were only followed for 12 to 24 weeks after treatment. For trials that have evaluated repeated injections of corticosteroids over a longer period of time—2 years, for example—injections were administered every 3 months, regardless of the timing of the return of OA symptoms. This is not reflective of what is done in clinical practice, where corticosteroids are administered again in response to the return of pain or a flare of inflammation in the knee. In this study, we used a flexible dosing schedule based on the patients’ symptoms, meaning that patients received the second injection of a recently approved extended-release corticosteroid only when their pain and/or symptoms returned, not before. Safety was monitored for 52 weeks—this length of time should be sufficient to identify any associated side effects, including any potential impact on the knee tissue. Triamcinolone acetonide extended-release (TA-ER; Zilretta®) was approved in late 2017 as an intra-articular injection for the management of osteoarthritis pain of the knee. The formulation utilizes microspheres which enable a slow release of the active agent (triamcinolone acetonide) into the synovial fluid for 12 weeks following injection. Previously, a Phase 3 study demonstrated safety and efficacy of a single injection of TA-ER (Conaghan PG, et al. J Bone Joint Surg Am. 2018;100:666-77). This is the first study evaluating the safety and patient response to repeat administration of TA-ER. This study also included patients that were more typical of who we see in the clinic—those who have higher body mass index, more severe disease, and received prior treatments for their osteoarthritis pain. (more…)
Addiction, Author Interviews, JAMA, Surgical Research / 27.02.2019

MedicalResearch.com Interview with: Calista Harbaugh, MD House Officer, General Surgery Clinician Scholar, National Clinician Scholars Program Research Fellow Michigan Opioid Prescribing Engagement Network University of Michigan  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Nonmedical prescription opioid use and prescription opioid-related overdose remain significant concerns among adolescents and young adults. Among adolescents and young adults prescribed an opioid after surgery, prior work found that 4.8% of opioid-naïve patients develop new persistent use, filling additional opioid prescriptions at 3-6 months after surgery. This work found associations of persistent use with diagnoses such as chronic pain disorders, depression, anxiety, and prior substance use disorder. It is likely that for young patients, family members may also play an important role in development of new persistent use, but this has not previously been explored. We performed this study to evaluate whether long-term opioid use among family members was associated with prescription opioid fills among adolescents and young adults perioperatively – and we found that opioid-naïve adolescents and young adults who have 1 or more family members with long-term opioid use are more likely to fill at the time of surgery, during recovery, and in the long-term with a near-doubling of rates of new persistent use. (more…)
Annals Internal Medicine, Author Interviews, Clots - Coagulation, Heart Disease / 27.02.2019

MedicalResearch.com Interview with: Dr Vanessa Selak, MBChB, MPH, PhD, FAFPHM, FNZCPHM Senior Lecturer, Section of Epidemiology & Biostatistics School of Population Health Faculty of Medical and Health Sciences University of Auckland MedicalResearch.com: What is the background for this study? Response: In order to determine the balance of benefits and harms of aspirin in primary prevention there’s a need to know an individual’s risk of CVD and their risk of a major bleed without aspirin. We have lots of equations that can be used to determine, among people considering aspirin for primary prevention, an individual’s risk of CVD, but few bleeding risk equations that can be used to determine their risk of a major bleed. We sought to develop a bleeding risk equation that can be used to determine the risk of a major bleed among people in whom aspirin is being considered for the primary prevention of CVD. (more…)
Allergies, Author Interviews / 26.02.2019

MedicalResearch.com Interview with: Ruchi Gupta MD MPH Mary Ann & J Milburn Smith Senior Scientist in Child Health Research Director, Science & Outcomes of Allergy & Asthma Research Professor of Pediatrics & Medicine Clinical Attending Ann & Robert H. Lurie Children's Hospital of Chicago Institute for Public Health and Medicine Northwestern Feinberg School of Medicine   Christopher M. Warren,  PhD University of Southern California Los Angeles, CA     MedicalResearch.com: What is the background for this study? Response: Readers may be familiar with the so-called "top 8" food allergens (i.e. peanut, tree nut, cow's milk, fin fish, shellfish, egg, wheat and soy), which are responsible for the majority of food allergies in the US.  However, in recent years increasing attention has been paid to sesame allergy, which evidence suggests can lead to anaphylaxis, frequently results in accidental exposure among affected patients, and is infrequently outgrown.  Until now, only one 2010 study has systematically assessed the prevalence of sesame among both US children and adults.  It concluded that sesame allergies were reported by approximately .1% of the US population. However, this study, which surveyed a sample of approximately 5000 US households only captured 13 individuals with reported sesame allergy, which limited the authors' ability to draw more detailed conclusions about the specific characteristics of sesame allergy in the United States.    (more…)
Anesthesiology, Author Interviews, JAMA, Surgical Research / 25.02.2019

MedicalResearch.com Interview with: Bheeshma Ravi, MD, PhD, FRCSC Scientist Sunnybrook Health Sciences Centre Holland Centre Toronto, ON MedicalResearch.com: What is the background for this study? What are the main findings? Response: Delirium is an acute change in mental status characterized by fluctuating disturbances of consciousness and attention. Elderly patients are prone to delirium after surgery; this contributes significantly to post-operative morbidity and can also lead to long-term disability. Our study found that among older adults undergoing hip fracture surgery, both an increased duration of surgery and a general anesthetic are associated with an increased risk for post-operative delirium.​  (more…)
ASCO, Author Interviews, Cancer Research, NEJM, Prostate Cancer / 25.02.2019

MedicalResearch.com Interview with: Prof. Karim Fizazi, MD, PhD Head of the Department of Cancer Medicine Institute Gustave Roussy MedicalResearch.com: What is the background for this study? How does darolutamide differ from other medications for prostate cancer? Response: Despite recent treatment advances, there is still significant unmet need for new therapeutic options for men with non-metastatic castration-resistant prostate cancer (nmCRPC). In laymen’s terms, nmCRPC is cancer that has not spread beyond the prostate region; PSA levels are elevated, despite treatment with hormone therapy, and men with nmCRPC generally feel well and do not have symptoms. The unmet medical need is for treatments that achieve disease control and delay the spread of the cancer without impacting their daily lives or increasing the burden of disease with treatment side effects. While the current treatments in this space are effective in delaying onset of metastases, the side effects can be unpleasant and disruptive to men’s lives; particularly cognitive issues, seizures, impact on balance which may lead to falls and bone fractures, rash and hypertension. Furthermore, new treatment options that have limited interactions with medications typically used in this patient population are also important.  (more…)
Author Interviews, Opiods / 25.02.2019

MedicalResearch.com Interview with: Mathew Vinhhoa Kiang, PhD Postdoctoral Research Fellow Primary Care and Outcomes Research Stanford University School of Medicine Stanford, California MedicalResearch.com: What is the background for this study? What are the main findings? Response: Nationally, opioid-related mortality has continued to climb for decades and resulted in over 42,000 deaths in 2016 — more than the number of deaths from car accidents or firearms. However, there are substantial differences across states and by opioid type. We sought to systematically describe these differences by examining state-level opioid mortality by opioid type. Deaths from synthetic opioids, such as fentanyl, are rapidly increasing in the eastern half of the US. Specifically, 28 states have synthetic opioid mortality rates that are more than doubling every two years. Twelve of those states already have high levels of synthetic opioid mortality — above 10 deaths per 100,000. Lastly, the opioid epidemic has reached our nation's capital — Washington DC has the fastest rate of increase, more than tripling every year, and a high opioid mortality rate. (more…)
Aging, Author Interviews, Exercise - Fitness, JAMA / 25.02.2019

MedicalResearch.com Interview with: Fuzhong Li, Ph.D. Senior Scientist Oregon Research Institute MedicalResearch.com: What is the background for this study? What are the main findings? Response: Injurious falls among community-dwelling older adults are a serious public health and cost-bearing problem worldwide.Exercise has been shown to reduce falls and injurious falls among older adults. However, evidence is limited with regard to the type of exercise interventions that are most effective, without exacerbating the risk in some individuals, in reducing injurious falls. This study addresses this knowledge gap in the field of falls prevention. Findings from this study showed that a six-month Tai Ji Quan program reduced the incidence of injurious falls among frail elderly by 53% compared to a regular (multimodal) exercise intervention. The effect of the Tai Ji Quan intervention was shown to be robust, and still evident at follow-up examinations six months after the study. (more…)
Author Interviews, BMJ, Exercise - Fitness, Weight Research / 25.02.2019

MedicalResearch.com Interview with: "Colnago M10 Campagnolo Record Custom Bike 067" by Glory Cycles is licensed under CC BY 2.0. To view a copy of this license, visit: https://creativecommons.org/licenses/by/2.0 Dr Paul Gentil Faculty of Physical Education and Dance Federal University of Goias Goiania, Brazil  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Although being overweight and/or obese are associated with numerous health risks, the prevalence of both are continuing to increase worldwide. The treatment would include anything that results in an increase in energy expenditure (exercise) or a decrease in energy intake (diet). However, our metabolism seems to adapt to variations in physical activity to maintain total energy expenditure. Although lower-than-expected weight loss is often attributed to incomplete adherence to prescribed  interventions, there are other factors that might influence the results, such as, metabolic downregulation. So, instead of making people spend more calories, maybe we have to think on how to promote metabolic changes in order to overcome these physiological adaptations above-mentioned. In this regard, high intensity training might be particularly interesting as a strategy to promote fat loss. Irrespective the amount of calories spent during training, higher intensity exercise seems to promote many physiological changes that might favor long-term weight loss. For example, previous studies have shown that interval training is able to promote upregulation of important enzymes associated with glycolysis and beta oxidation pathways, which occurs in a greater extent than with moderate intensity continuous exercise. Our findings suggest that interval training might be an important tool to promote weigh loss. However, I t might be performed adequately and under direct supervision in order to get better results. (more…)
Accidents & Violence, Author Interviews, JAMA / 25.02.2019

MedicalResearch.com Interview with: Hannah Decker MD Candidate, Class of 2019 Emory School of Medicine Jeremiah Schuur, MD, MHS FACEP Physician-in-chief for emergency medicine at Lifespan and Chair of the department of Emergency Medicine Brown MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Firearm injury is a leading cause of injury and death in the United States. Many physician groups advocate for evidence-based policies, such as universal background checks, to reduce this morbidity and mortality. We studied contributions of the 25 largest political action committees (PACs) affiliated with physician professional groups during the 2016 election cycle and found that almost all gave more money to political candidates who voted against universal background checks and were endorsed by the NRA. These PACs contributed to more than twice as many incumbent US Senate candidates who voted against an amendment to expand firearm background checks than those who voted for the amendment. In the US House of Representatives, the pattern of giving was similar. These PACs gave $2.8 million more to candidates who did not sponsor a bill to expand background checks than to those who did. Finally, these physician PACs were more than twice as likely to contribute to and gave almost $1.5 million dollars more to candidates rated A by the NRA. (more…)
Allergies, Author Interviews, Immunotherapy / 25.02.2019

MedicalResearch.com Interview with: Dr Paul Turner FRACP PhD MRC Clinician Scientist and Clinical Senior Lecturer, Imperial College London Honorary Consultant in Paediatric Allergy & Immunology Imperial College Healthcare NHS Trust Hon Consultant, Royal Free Hospital / Royal Brompton & Harefield NHS Foundation Trust Clinical trials specialist (Paediatrics), Public Health England Clinical Associate Professor in Paediatrics, University of Sydney, Australia Dr. Nandinee Patel, MD Section of Paediatrics Imperial College London London, United Kingdom MRC & Asthma UK Centre in Allergic Mechanisms of Asthma London, United Kingdom MedicalResearch.com: What is the background for this study? Response: Current desensitisation protocols for peanut allergy use defatted roasted peanut flour, which can be difficult to accurately measure in very low doses needed for desensitisation (and thus has resulted in the development of AR101 by Aimmune which is likely cost many thousands of dollars for a course of treatment). We have previously observed that some children with food allergy to roasted peanut (such as peanut butter) are nonetheless able to tolerate boiled peanuts without reacting. We performed in vitro protein analysis studies which demonstrated that boiling peanuts resulted in around 50% of protein leaching out of the peanut into the cooking water. Furthermore, we found evidence for preferential leaching of allergen epitopes such as Ara h 2 as well aggregation of proteins resulting in a hypoallergenic peanut product. We therefore sought to assess whether boiled peanuts could be as effective and safe to induce desensitisation. (more…)
Author Interviews, Breast Cancer, Brigham & Women's - Harvard, Chemotherapy, NEJM / 24.02.2019

MedicalResearch.com Interview with: Aditya Bardia, MBBS, MPH Director, Precision Medicine, Center for Breast Cancer, Attending Physician Massachusetts General Hospital Cancer Center Harvard Medical School Boston, MA 02114 MedicalResearch.com: What is the background for this study? Response: Metastatic triple negative breast cancer is associated with aggressive tumor biology, and tends to affect younger patients and African Amerians. The response rate with standard chemotherapy regimens in patients with pre-treated metastatic TNBC ranges from 10-15%, and median progression-free survival ranges from 3-4 months. The median survival of metastatic TNBC is around 12 months and has not changed in the past 20 years. Thus, treatment of metastatic triple negative breast cancer represents an unmet clinical need.   (more…)
Author Interviews, Opiods / 24.02.2019

MedicalResearch.com Interview with: Brian J. Piper, PhD, MS Assistant Professor of Neuroscience Geisinger Commonwealth School of Medicine MedicalResearch.com: What is the background for this study? Response: Fentanyl is an important opioid for pain management but also has exceptional potential for misuse. Illicitly manufactured fentanyl accounts for a large portion of opioid overdoses. Seven states including Maine, Connecticut, Massachusetts, New York, Rhode Island, and Vermont have recently implemented opioid prescribing laws. The objectives of this study were to:
  • 1) characterize how medical use of fentanyl, fentanyl analogues like sufentanil, alfentanil, and remifentanil, and other opioid use changed over the past decade, and
  • 2) determine whether opioid prescribing laws impacted fentanyl use in the US. The Drug Enforcement Administration’s Automation of Reports and Consolidated Ordering System (ARCOS) is the gold-standard for pharmacoepidemiology research of controlled substances in the US for its comprehensiveness. 
(more…)
Author Interviews, JAMA, Karolinski Institute, Pharmacology, Schizophrenia / 24.02.2019

MedicalResearch.com Interview with: Jari Tiihonen, MD, PhD Professor, Department of Clinical Neuroscience Karolinska Institutet Stockholm, Sweden  MedicalResearch.com: What is the background for this study? Response: The effectiveness of antipsychotic combination therapy in schizophrenia relapse prevention is controversial, and use of multiple agents is generally believed to impair physical well-being. But the evidence for this are weak and antipsychotic polypharmacy is widely used. (more…)
Author Interviews, Genetic Research, JAMA, Prostate Cancer / 24.02.2019

MedicalResearch.com Interview with: Masaki Shiota MD, PhD Department of Urology Graduate School of Medical Sciences Kyushu University Fukuoka , Japan MedicalResearch.com: What is the background for this study? What are the main findings? Response:  3β-hydroxysteroid dehydrogenase-1 encoded by HSD3B1 is a rate-limiting enzyme required for all pathways of dihydrotestosterone synthesis, as well as converts abiraterone into Δ4-abiraterone (D4A), which blocks multiple steroidogenic enzymes and antagonizes the androgen receptor. A mutation (1245A>C) in HSD3B1 is shown to be resistant to proteasomal degradation, causing substantial accumulation of this enzyme and gain-of-function. Although the HSD3B1 (1245C) allele can be acquired by mutation, germ-line single nucleotide polymorphism (SNP; rs1047303) is also known to exist. Then, in this study, we investigated the significance of missense polymorphism in HSD3B1 gene among men treated with primary ADT or abiraterone. The results showed men carrying variant allele showed higher risk of progression in primary androgen-deprivation therapy, but vulnerable to abiraterone treatment. (more…)
Author Interviews, Exercise - Fitness, Kidney Disease, Nutrition, UT Southwestern / 24.02.2019

MedicalResearch.com Interview with: Dr. Wanpen Vongpatanasin, M.D. Professor of Medicine Norman & Audrey Kaplan Chair in Hypertension Fredric L. Coe Professorship in Nephrolithiasis and Mineral Metabolism Research Director, Hypertension Section, Cardiology Division, UT Southwestern Medical Center    MedicalResearch.com: What is the background for this study? Response: Increased sedentary activity is commonly seen in people who regularly consume fast food but previously studies have not identified potential mechanisms beyond increased obesity and lack of motivation. Our study seeks to determine if inorganic phosphate, a commonly used food additives that are present in up to 70% of foods in the American diet, maybe the culprit. These food additives (which may come in the form of monocalcium phosphate, phosphoric acid, or tetrasodium phosphate, etc. are used to make the food taste better and/or last longer. It is found mostly in prepackaged foods, cola drinks, and bakery items (cookies, cake, and bread). This is very different from organic phosphates that are found naturally in many healthful foods, such as fruits and vegetables, which are not not readily absorbed from the GI tract. In the Dallas Heart Study, a multiethnic population-based study, we found that serum phosphate is significantly associated with sedentary time and increased time spent in moderate-to-vigorous physical activity which was measured by wrist actigraphy device. This is not explained by reduce cardiac function as ejection fraction remains normal at higher serum phosphate. (more…)
Author Interviews, Brigham & Women's - Harvard, Cost of Health Care, JAMA, Surgical Research, Weight Research / 24.02.2019

MedicalResearch.com Interview with: Jagpreet Chhatwal PhD Assistant Professor, Harvard Medical School Senior Scientist, Institute for Technology Assessment Massachusetts General Hospital Chin Hur, MD Associate Professor of Medicine Harvard Medical School       MedicalResearch.com: What is the background for this study? Response: Nonalcoholic steatohepatitis (NASH), a severe form of nonalcoholic fatty liver disease, is one of the leading causes of liver transplantation. Because of increasing prevalence of obesity in the United States, NASH-related cirrhosis cases are expected to increase in the near future. Unfortunately, there are few pharmacological treatments for NASH, and none with proven long-term benefit. Weight loss can be effective in managing NASH but not many patients can lose the sufficient weight necessary to impact NASH and/or maintain long-term weight loss. In contrast, bariatric surgery can provide long-term weight loss and thus potentially reverse liver damage in cirrhosis. However, bariatric surgery is associated with mortality and morbidity associated with the procedure. (more…)
Author Interviews, Colon Cancer, Gastrointestinal Disease / 23.02.2019

MedicalResearch.com Interview with: Dr. Michael Epstein MD Dr. Epstein has over 30 years of experience in the field of Gastroenterology with extensive medical training as a practicing clinician, including treating patients with a range of gastroenterological conditions, such as Inflammatory Bowel Disease (IBD), Crohn’s disease, Ulcerative Colitis, Hepatology and Liver diseases. Dr. Epstein is also the founder and principle physician at Digestive Disorders Associates and is the president of the Maryland Diagnostic and Therapeutic Endo Center, both in Annapolis, Maryland. He is board certified by the American Board of Internal Medicine with a sub-specialty in Gastroenterology. He is a fellow of the American Gastroenterology Association and the American College of Gastroenterology, and a member of the Society of Gastrointestinal Surgeons.  MedicalResearch.com: What is the importance of colonoscopy?  Response: We lose more people to colon cancer each year than who have died in the Vietnam War. I believe that colon cancer has become a public health issue and there is a great need to increase public awareness around screening. It is so important for patients to take part in routine screenings as the symptoms of colon cancer are often silent. Sadly, often times people do not know they have colon cancer until the cancer is in an advanced state. A colonoscopy is important because it is the only test that can currently detect and treat this type of cancer that is also one of the leading killers in the United States. Not only can we often detect pre-cancerous polyps, but we can often remove these polyps during the procedure.  (more…)
Author Interviews, Cancer Research, Dermatology, Radiation Therapy / 23.02.2019

MedicalResearch.com Interview with: William I. Roth MD Dermatology and Dermatological Surgery Boynton Beach, FL MedicalResearch.com: What is the background for this study?
  • This retrospective study reviewed medical records of patients with biopsy-proven, primary cutaneous basal and squamous cell carcinoma (BCC and SCC) lesions on the lower extremities. These patients were treated with the Sensus Healthcare’s Superficial Radiation Therapy SRT-100 Unit between 2011 and 2014. The SRT-100 is most amenable for treating non-melanoma skin cancer (NMSC) in patients aged 65 and older although many younger patients are treated as well when a non-scarring method is desired.
  • The types of skin cancers treated included superficial, well differentiated and moderately differentiated squamous cell carcinomas, squamous cell carcinoma in situ and basal cell carcinomas including infiltrative basal cell carcinomas. Higher energy linear accelerator radiation units have been reported to have a high incidence of healing problems. With the SRT-100 the radiation is concentrated primarily in the higher layers of the skin where the skin cancer is located and thus the treatments are well tolerated.
(more…)
Author Interviews, Health Care Systems, JAMA, Outcomes & Safety, Surgical Research / 22.02.2019

MedicalResearch.com Interview with: Alexis G. Antunez MS University of Michigan Medical School, Ann Arbor Center for Healthcare Outcomes and Policy University of Michigan, Ann Arbor MedicalResearch.com: What is the background for this study? Response: The American College of Surgeons Commission on Cancer is implementing a National Accreditation Program for Rectal Cancer (NAPRC), aiming to improve and standardize the quality of rectal cancer care in the United States. While this is a commendable goal, previous accreditation programs in other specialties have faced controversy around their uncertain impact on access to care. Furthermore, it is well established that the quality of rectal cancer care is associated with patients’ socioeconomic position. So, the NAPRC could have the unintended consequence of widening disparities and limiting access to high quality rectal cancer care for certain patient populations.  (more…)