Author Interviews, Lancet, Stroke / 24.08.2016

MedicalResearch.com Interview with: Dr Alexander Kunz MD Department of Neurology Charité-University Medicine Berlin Berlin, Germany MedicalResearch.com: What is the background for this study? Response: Systemic thrombolysis with tissue plasminogen activator (tPA) in acute ischemic stroke has been an approved therapy for over 20 years now. To date, tPA can be administered to eligible patients within a 4.5 hours time window after the onset of symptoms. Results from large thrombolysis trials and meta-analyses have shown, that the beneficial effects of tPA are inversely correlated with the delay from symptoms onset to start of tPA treatment. This relationship is frequently summarized in the slogan “Time is brain!” Currently, several research groups are evaluating the concept of pre-hospital thrombolysis using a mobile stroke treatment unit (MSTU) in order to achieve significant reductions in onset-to-treatment delays. MSTU are specialized ambulances equipped with a CT scanner and a mini-laboratory. In Berlin, Germany, we have been operating an MSTU (stroke emergency mobile vehicle, STEMO) since 2011. Previous studies had shown that start of tPA treatment was 25min earlier when patients were cared by STEMO than within conventional care, i.e. admission to hospital by regular ambulance and in-hospital tPA treatment. However, these studies did not prove, that earlier treatment in STEMO is associated with better outcome. Therefore, the aim of the current study was to compare 3-month functional outcome after tPA in patients with acute ischemic stroke who received STEMO care vs conventional care. (more…)
Author Interviews, Fertility, OBGYNE, PNAS / 23.08.2016

MedicalResearch.com Interview with: Peter Sutovsky PhD Professor of Animal Science in the College of Agriculture, Food and Natural Resources University of Missouri Professor of Obstetrics, Gynecology and Women’s Health at the School of Medicine University of Missouri Health System MedicalResearch.com: What is the background for this study? What are the main findings? Response: Strictly maternal inheritance of mitochondria, the cellular power stations, and mitochondrial genes that mitochondria harbor, is a major biological paradigm in mammals. Propagation of paternal, sperm-contributed mitochondrial genes, resulting in a condition called heteroplasmy, is seldom observed in mammals, due to post-fertilization elimination sperm mitochondria, referred to as “sperm mitophagy.” Our and others’ recent results suggest that this process is mediated by the synergy of ubiquitin–proteasome system (UPS) pathway that recycles outlived cellular proteins one molecule at a time, and autophagic pathway capable of engulfing and digesting an entire mitochondrion. Here we demonstrate that the co-inhibition of the ubiquitin-binding autophagy receptor proteins SQSTM1, GABARAP, and UPS, and the UPS protein VCP dependent pathways delayed the digestion of sperm mitochondria inside the fertilized pig egg. By manipulating said proteins, we created heteroplasmic pig embryos with both the paternal and maternal mitochondrial genes. Such animal embryos that could be used as a biomedical model to research and alleviate certain forms of mitochondrial disease. (more…)
Allergies, Author Interviews, Infections / 23.08.2016

MedicalResearch.com Interview with: Emily L. Heil, PharmD, BCPS-AQ ID Assistant Professor Department of Pharmacy Practice and Science University of Maryland School of Pharmacy 20 N Pine St Baltimore, Maryland 21201 MedicalResearch.com: What is the background for this study? Response: As many as nine out of ten people who think they are allergic to penicillin are, in fact, not allergic when penicillin allergy skin testing is performed. This mistaken belief, confirmed in multiple other studies and a matter of concern of the U.S. Centers for Disease Control and Prevention (CDC), has widespread implications given that patients who report penicillin allergies tend to get suboptimal antibiotic therapy compared with patients who do not. Penicillin skin testing (PST) can clarify allergy histories but is often limited by access to testing. We aimed to implement an infectious disease (ID) fellow managed PST program and to assess the need for PST via national survey. Our study found that inpatient Penicillin skin testing can be successfully managed by ID fellows, thereby promoting optimal antibiotic use. Our study showed that by testing patients for penicillin allergy via skin test, we could improve their care: 80 percent of patients were able to switch to more effective antibiotic therapy once they were tested. (more…)
Author Interviews, Lipids, Pharmacology / 23.08.2016

MedicalResearch.com Interview with: Prof. Dr. Ioana Gouni-Berthold MD Center for Endocrinology, Diabetes and Preventive Medicine (ZEDP) University of Cologne Cologne, Germany MedicalResearch.com: What is the background for this study? Response: In Europe, up to half of the population aged between 35 and 64 has hypercholesterolemia (high levels of low-density lipoprotein cholesterol [LDL-C]), putting them at risk of heart disease. Despite increased treatment rates in recent years, many patients still do not receive adequate therapy, and heart disease remains the biggest cause of death in the USA and most European countries. Two drugs, alirocumab and evolocumab, have recently been approved for lowering LDL-C in patients with hypercholesterolaemia as an ‘add-on’ therapy to other lipid-lowering medication, or for use alone in patients unable to tolerate statins. These drugs have a unique mode of action– they inhibit proprotein convertase subtilisin/kexin type 9 (PCSK9), a protein that binds to LDL receptors and targets them for degradation. In the absence of PCSK9, the LDL receptor recycling is restored and the receptors are able to remove LDL from the blood. Both alirocumab and evolocumab have been tested in numerous patient populations in phase 3 trials; albeit evolocumab has an additional indication of homozygous familial hypercholesterolemia. We therefore felt that there was a need to collate the available data to assess the efficacy and safety of each agent. We chose reduction in LDL-C as our outcome of interest, because this was the primary endpoint of the pivotal clinical trials. (more…)
Author Interviews, JAMA, Kidney Disease / 23.08.2016

MedicalResearch.com Interview with: Fan Fan Hou Chief, Division of Nephrology, Nanfang Hospital Professor of Medicine, Southern Medical UniversityFan Fan Hou MD Chief, Division of Nephrology, Nanfang Hospital Professor of Medicine, Southern Medical University MedicalResearch.com: What is the background for this study? What are the main findings? Response: Previous trials (HOST and DIVINe) of folic acid therapy in CKD patients were conducted in patients with advanced CKD and treated with super-high dose of vitamin B or with cyanocobalamin that has been shown to be renal toxic. The current study sought to evaluated the efficacy of folic acid therapy without cyanocobalamin on renal outcomes in patients without folic acid fortification and across a spectrum of renal function at baseline from normal to moderate CKD. We found that treatment with enalapril-folic acid, as compared with enalapril alone, reduced the risk of progression of CKD by 21% and the rate of eGFR decline by 10% in hypertensive patients. More importantly, the presence of CKD at baseline was a significant modifier of the treatment effect (p for interaction = 0.01). Patients with CKD benefited most from the folic acid therapy, with a 56% and 44% reduction in the risk for progression of CKD and the rate of eGFR decline, respectively. In contrast, the renal protective effect in those without CKD was nominal. (more…)
Addiction, Author Interviews, Compliance, Opiods, Pharmacology / 23.08.2016

MedicalResearch.com Interview with: F. Leland McClure III, MSci, PhD, F-ABFT Medical science liaison director Quest Diagnostics MedicalResearch.com: What is the background for this study? What are the main findings? Response: Many physicians associate Quest Diagnostics with their lab service needs because of our leadership in laboratory testing. But Quest is more than a lab, which is why we refer to ourselves as a diagnostic information services provider. This means that we help providers, health plans and even patients use the insights we derive from our lab testing data to deliver better care, quality and outcomes, both for the patient and the managed population. Our 2016 Quest Diagnostics Health Trends(TM) Prescription Drug Monitoring Report is an example of how we provide important health insights from Quest's laboratory data. Prescription drug misuse is a major epidemic in the United States. Laboratory testing can help identify if a patient is using or misusing prescribed medications. For instance, lab tests can show evidence of additional medications and other drugs in a patient’s urine specimen, suggesting potentially dangerous drug combinations. Earlier this year, the CDC issued guidelines that call for laboratory testing for patients prescribed certain medications, such as opioids, that carry a risk of abuse. Quest's prescription drug monitoring services help the physician identify if a patient is taking or not taking up to about four dozen drugs, such as oxycodone, Adderall XR® and Percocet®. For the Quest analysis, we analyzed more than 3 million de-identified lab test results. In this report, we found that 54 percent of patients’ results tested in 2015 showed evidence of drug misuse, slightly above the 53 percent misuse rate in 2014. That is certainly unacceptably high, but it’s a significant decline from the high of 63 percent we observed in 2011. We also found that an increasing proportion of patients who misuse medications combine their prescription medication with non-prescribed drugs. Among patients with inconsistent test results, forty-five percent of these patients showed evidence of one or more other drug(s) in addition to their prescribed drug regimen. That’s much higher than our findings of 35 percent in 2014 and 2013, 33 percent in 2012, and 32 percent in 2011. Finally, we were alarmed by the data showing the connection between heroin and benzodiazepines misuse. Our data showed one in three heroin users combine their drug use with benzodiazepines, the vast majority of which were unprescribed. This is an extremely dangerous practice given that benzodiazepines can have strong respiratory depressant effects when combined with other substances. Drug combinations, but particularly of heroin with benzodiazepines, can be potentially very dangerous, leading to coma and even death in some cases. (more…)
Author Interviews, CDC, Ophthalmology / 23.08.2016

MedicalResearch.com Interview with: Dr. Jennifer Cope MD, MPH Medical Epidemiologist CDC MedicalResearch.com: What is the background for this study? What are the main findings? Response: Approximately 41 million people in the United States wear contact lenses, a safe and effective form of vision correction if worn and cared for as directed. Contact lenses are medical devices that are regulated by the Food and Drug Administration (FDA). Adverse events related to contact lenses are reported to FDA’s Medical Device Report (MDR) database. During 2005–2015, a total of 1,075 Medical Device Reports describing contact lens–related corneal infections were reported to the FDA Medical Device Report database. Approximately 20% of these reports described a patient who suffered serious eye damage. More than 25% of the 1,075 reports described modifiable behaviors that might have put the patient at risk for a contact lens–related corneal infection, such as sleeping in lenses or wearing lenses longer than for the prescribed period. (more…)
Author Interviews, Frailty, Hip Fractures, JAMA, Pharmacology / 22.08.2016

MedicalResearch.com Interview with: Jeffrey Munson, MD, MSCE Assistant Professor The Dartmouth Institute for Health Policy & Clinical Practice Assistant Professor, Department of Medicine Geisel School of Medicine at Dartmouth MedicalResearch.com: What is the background for this study?  Response: Fragility fractures due to osteoporosis are a common and costly event among older Americans. Patients who experience one fragility fracture are at increased risk to have a second fracture. Our group is interested in exploring ways in which the risk of a second fracture could be reduced. In this paper, we studied prescription drug use both before and after fracture. We know many prescription drugs have been shown to increase the risk of fracture, but we don’t know whether doctors try to reduce the use of these drugs after a fracture has occurred. Our study was designed to answer this question. (more…)
Author Interviews, Cost of Health Care, Emergency Care, JAMA, Kidney Disease / 22.08.2016

MedicalResearch.com Interview with: Rachel Patzer, PhD, MPH Director of Health Services Research, Emory Transplant Center Assistant Professor Emory University School of Medicine Department of Surgery Division of Transplantation MedicalResearch.com: What is the background for this study? Response: Patients with End Stage Renal Disease (ESRD) make up less than 1% of all Medicare patients, but account for more than 7% of all Medicare expenses. Patients with ESRD have the highest risk of hospitalization of any patient with a chronic disease, and while hospital admissions have decreased over the last several years, emergency department utilization for this patient population has increased by 3% in the last 3 years. The purpose of the study we conducted was to describe the clinical and demographic characteristics associated with emergency department utilization. (more…)
Author Interviews, Leukemia, Race/Ethnic Diversity, Social Issues / 22.08.2016

MedicalResearch.com Interview with: Luciano J. Costa, MD, PhD Associate Professor Department of Medicine and UAB-CCC Bone Marrow Transplantation and Cell Therapy Program Birmingham, AL 35294 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Even though expected survival for multiple myeloma patients has increased over the last two decades, that improvement has not been much more pronounced among White than among patients of racial/ethnic minorities. It is possible that such discrepancy results from unequal access to care, particularly as treatment becomes more complex and expensive. We used a large dataset of patients with  multiple myeloma to explore how socioeconomic factors, specifically marital status, income and insurance affect outcome and how these factors relate to race/ethnicity. (more…)
Author Interviews, Dermatology, JAMA, Melanoma, Stanford / 22.08.2016

MedicalResearch.com Interview with: Susan M. Swetter, MD Professor of Dermatology Director, Pigmented Lesion & Melanoma Program Physician Leader, Cancer Care Program in Cutaneous Oncology Stanford University Medical Center and Cancer Institute MedicalResearch.com: What is the background for this study? What are the main findings? Response: Dysplastic nevi (DN) are frequently re-excised following initial biopsy due to concerns for malignant transformation; however, the long-term risk of melanoma developing in mildly or moderately dysplastic nevi with positive histologic margins is unknown. In this cohort study of 590 histologic DN that were followed over 20 years, 6 cases of melanoma (5 in situ) arose in the 304 DN with positive margins that were clinically observed, only 1 of which developed from an excisionally-biopsied dysplastic nevus. One melanoma in situ arose in the 170 cases that underwent complete excision at the outset. The risk of new primary melanoma at other sites of the body was over 9% in both groups. (more…)
AHA Journals, Author Interviews, Heart Disease / 20.08.2016

MedicalResearch.com Interview with: Lu Qi, MD, PhD HCA Regents Distinguished Chair and Professor Director,Tulane University Obesity Research Center Department of Epidemiology Tulane University School of Public Health and Tropical Medicine 1440 Canal Street, Suite 1724 New Orleans, LA 70112 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Gallstone disease has been related to various risk factors of cardiovascular disease, and several previous studies suggest potential link between gallstone disease and heart disease. Our study, for the first time, provide consistent evidence for the association between gallstone disease and an increased risk of cardiovascular disease. (more…)
Alzheimer's - Dementia, Author Interviews, Calcium, Neurology / 19.08.2016

MedicalResearch.com Interview with: Silke Kern, MD, PhD Neuropsychiatric Epidemiology Unit and Clinical Neurochemistry Laboratory Department of Psychiatry and Neurochemistry Institute of Neuroscience and Physiology Sahlgrenska Academy University of Gothenburg Gothenburg, Sweden MedicalResearch.com: What is the background for this study? What are the main findings? Response: Calcium has an important role in ischemic neuronal cell death and atherosclerosis. Several studies suggest that increased serum calcium increases the risk for vascular events and worsens the outcome after stroke. Widespread ischemic neuronal cell death and atherosclerosis might lead to dementia. We therefore examined if Calcium supplementation is associated with development of dementia. Our study is the first to show a relationship between Calcium supplementation and increased risk for dementia in older women. This risk is mainly confined to women with cerebrovascular disease (history of stroke or presence of white matter lesions). (more…)
Author Interviews, Social Issues / 19.08.2016

MedicalResearch.com Interview with: Emily H. Starr, M.A. Doctoral Candidate City, Culture, & Community Tulane University, New Orleans MedicalResearch.com: What is the background for this study? What are the main findings? Response: This study examines the relationship between work, partnering, and parenthood through the perspectives of bartenders working in the New Orleans metro area. Bartenders frame work, intimate relationships, and family as interlocking matrices and view their lack of legitimate work (or their lack of a normative 9-5 job with security, benefits, and a salary) as a prohibitive or complicating factor in their ability to assume the roles of partner and parent. Some of the fastest growing segments of the U.S. labor market are low-wage and low-skill jobs meaning that young people will increasingly grapple with hegemonic "white picket fence" ideologies that prescribe certain family forms and occupational/labor relationships as ideal. Moreover, the matrices of performative adulthood are gendered with women and men framing their work as incompatible with family life for different reasons. Women more often experience sexual harassment/objectification, feel their skills and abilities are called into question, and perceive that women bartenders are marginalized as "certain types of women." These perceptions lend themselves towards women bartenders framing barwork as incompatible or undesirable with mothering. Men express anxiety about their long-term earning potential and combating the stigma of low-status work through the professionalization of the craft cocktail and spirits industry. Thus, men are more concerned about their role as breadwinner rather than viewing bartending and fatherhood roles as mutually-exclusive. These findings suggest that bartenders draw upon dominant ideologies of normative adulthood and invoke traditional gender roles to frame their perspectives about bartending and family life. Importantly, the contours and realities of their working lives are the prohibitive factor in bartenders' perspectives about the possibility for participating in long-term intimate relationships and parenthood. (more…)
Accidents & Violence, Author Interviews, CDC / 19.08.2016

MedicalResearch.com Interview with: Bridget H. Lyons, MPH Division of Violence Prevention, National Center for Injury Prevention and Control Centers for Disease Control and Prevention Atlanta MedicalResearch.com: What is the background for this study? What are the main findings? Response: The National Violent Death Reporting System has been collecting data since 2003. NVDRS collects data regarding violent deaths obtained from death certificates, coroner/medical examiner reports, law enforcement reports, and secondary sources (e.g., child fatality review team data, supplementary homicide reports, hospital data, and crime laboratory data). This study examines 17 states that collected statewide data in 2013. Our main findings are: 1. Violent deaths resulting from suicide or interpersonal violence disproportionately affected persons less than 65 years of age, males, and certain minority populations. 2. Primary circumstances for homicide and suicide included intimate partner problems, interpersonal conflicts, mental health problems and recent crises. (more…)
Author Interviews, CT Scanning, Lung Cancer, PLoS, Radiology / 19.08.2016

MedicalResearch.com Interview with: Matthew B. Schabath PhD Department of Cancer Epidemiology H. Lee Moffitt Cancer Center and Research Institute Tampa, Florida MedicalResearch.com: What is the background for this study? What are the main findings? Response: Our study is a post-hoc analysis of data from a large randomized clinical trial (RCT) called the National Lung Screening Trial (NLST). The NLST found that lung cancer screening with low-dose helical computed tomography (LDCT) significantly reduced lung cancer deaths by 20 percent compared to screening with standard chest radiography (i.e., X-Ray). In our publication, we performed a very detailed analysis comparing outcomes of lung cancer patients screened by LDCT according to their initial (i.e., baseline), 12 month, and 24 month screening results. We found that patients who had a negative baseline screening but tested positive for lung cancer at the 12- or 24-month screen had lower survival and higher mortality rates than patients who had a positive initial screen that was a non-cancerous abnormality but developed lung cancer in subsequent screens. (more…)
Author Interviews, Genetic Research, Heart Disease, Science / 19.08.2016

MedicalResearch.com Interview with: Johan LM Björkegren, MD, PhD Professor, Chief Clinical Science Officer Department of Genetics and Genomic Sciences Icahn Institute for Genomics and Multiscale Biology Icahn School of Medicine at Mount Sinai New York MedicalResearch.com: What is the background for this study? What are the main findings? Response: The STARNET (Stockholm-Tartu Atherosclerosis Reverse Network Engineering Task) study was launched in 2007 by myself and Dr. Arno Ruusalepp MD, PhD, Chief Cardiac Surgeon at Tartu University Hospital in Estonia, and senior co-author on the study. Unlike similar studies, STARNET obtained samples of several key tissues from 600 clinically well-characterized patients with CAD during coronary artery bypass surgery. By using sophisticated data analysis techniques, the researchers found that the gene expression data from STARNET were highly informative in identifying causal disease genes and their activity in networks not only in CAD but also for other cardiometabolic diseases as well as Alzheimer’s disease. By analyzing gene-expression data from multiple tissues in hundreds of patients with coronary artery disease, we were able to identify disease-causing genes that either were specific to single tissues or acted across multiple tissues in networks to cause cardiometabolic diseases. (more…)
Author Interviews, Exercise - Fitness, Heart Disease, JACC / 19.08.2016

MedicalResearch.com Interview with: Antonio Pelliccia, MD, FESC Chief of Cardiology Institute of Sport Medicine and Science Rome MedicalResearch.com: What is the background for this study? Response: The awareness of the relevant role of arrhythmogenic right ventricular cardiomyopathy (ARVC) as cause of athletic field events and the refined Task Force (TF) criteria for the diagnosis of the disease have prompted a large scientific interest and triggered a vast scientific literature on this issue. Indeed, the recent observations by Heidbuchel and La Gerche based on data from a selected group of ultra-endurance athletes, suggesting that strenuous, chronic endurance exercise may ultimately cause, per se, RV dysfunction have further stimulated the need to define the characteristics and limits of training-induced RV remodelling. At present, however, no studies have assessed the characteristic of physiologic right ventricular remodelling as derived from a large population of highly-trained athletes, including a sizeable number of women and comprising a broad spectrum of summer and winter Olympic sport disciplines. (more…)
Author Interviews, C. difficile, Genetic Research, Infections / 19.08.2016

MedicalResearch.com Interview with: Charles Darkoh, Ph.D., MS., MSc. Assistant Professor University of Texas Health Science Center at Houston School of Public Health Department of Epidemiology, Human Genetics & Environmental Sciences Center for Infectious Diseases Houston, Texas 77030 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Clostridium difficile (Cdiff) is a multidrug-resistant pathogen that takes over the colon after the good bacteria in the colon have been wiped out by antibiotic therapy. As a result, antibiotic treatment is a major risk factor for C. diff infections. Because of the ability of C. diff to inactivate the majority of the antibiotics currently available, it has become necessary to urgently develop a non-antibiotic therapy for this life-threatening infection. We know that C. diff causes disease by producing toxins, designated toxin A and B. During infection, the toxins are released into the colon resulting in diarrhea and inflammation of the colon as well as other diarrhea-associated illnesses. We also know that C. diff strains that are unable to produce toxins cannot cause disease. Therefore, the toxins are promising targets for a non-antibiotic therapy. We reported last year that C. difficile regulates toxin production using quorum sensing — a system that allows bacteria to coordinate their biological activities as a group. Two sets of quorum-sensing genes (agr1 and agr2) were identified. These genes form part of a signaling communication system that makes a small peptide, which serves as a cue for the infecting bacterial population to turn on their toxin genes. In this study we used genetic analysis to identify which of these two sets of genes is responsible for regulating the toxins. Our results demonstrates that agr1 is the culprit. This is because Cdiff agr1 mutant cannot produce toxins and unable to cause disease in mice, whereas the agr2 mutant can cause disease just like the wild type C.diff. (more…)
Author Interviews, Dermatology, Pediatrics, Tobacco Research / 19.08.2016

MedicalResearch.com Interview with: Dr. Jonathan L. Silverberg MD PhD MPH Assistant Professor in Dermatology Medical Social Sciences and Preventive Medicine Northwestern University, Chicago, Illinois MedicalResearch.com: What is the background for this study? Response: Some children with atopic dermatitis may have disease activity persist into adolescence and adulthood, although most children are thought to “grow out of it.” There have been a number of studies with varied results about how commonly atopic dermatitis actually persists later in life. Moreover, the risk factors for persistence of atopic dermatitis are unclear. We sought to systematically analyze the extant literature of research studies to determine the rates and predictors of atopic dermatitis persistence over time. (more…)
Author Interviews, Cancer Research, Esophageal, Genetic Research / 19.08.2016

MedicalResearch.com Interview with: Prof. Trevor A Graham, MSc, MRes, PhD Lead, Evolution and Cancer Laboratory Centre for Tumour Biology Barts Cancer Institute, Queen Mary University of London John Vane Science Centre London MedicalResearch.com: What is the background for this study? What are the main findings? Response: Barrett’s Oesophagus is a common condition that affects an estimated 1.5 million people in the UK alone, although many are undiagnosed . This condition involves normal cells in the oesophagus (food pipe) being replaced by a different, unusual cell type called Barrett’s Oesophagus, and the replacement of the cells is thought to be a consequence of chronic reflux (heartburn). People with Barrett’s have an increased risk of developing oesophageal cancer - a cancer that sadly still has a five year survival of 15% . But although the overall lifetime risk of developing oesophageal cancer in people with Barrett’s is significant (some estimates suggest the risk is comparable to that associated with smoking and lung cancer), the risk for each patient per year is very low. This presents a big problem - most Barrett’s patients will never develop cancer in their lifetime, but the unfortunate few develop an aggressive cancer. Doctors urgently need better tools to distinguish which people with Barrett’s are actually at risk of developing cancer, so that they can receive the best treatment, and everyone else at low risk of cancer can be reassured and not need to endure unnecessary treatment. But because good a way to distinguish high-risk people doesn’t exist, all people with Barrett's have regular (every 3 years or thereabouts) endoscopy; a camera pushed into the oesophagus to look for early signs of cancer. Together with Prof Sheila Krishnadath  and her colleagues at the Amsterdam Medical Centre, Holland, we confirmed that we can identify people at high risk of developing cancer from pre-cancerous condition Barrett’s oesophagus by measuring the genetic diversity of Barrett’s cells. Importantly, we also showed level of genetic diversity amongst a person’s Barrett’s cells essentially being fixed over time – no significant changes in genetic diversity were found during the ~4 years that the patients were followed. This means that whenever someone’s Barrett’s is tested, it looks like their future risk of developing cancer can be predicted regardless of how long it’s been since the abnormal Barrett’s cells began to appear. (more…)
Author Interviews, Cost of Health Care, Heart Disease / 19.08.2016

MedicalResearch.com Interview with: Leo F. Buckley, PharmD Virginia Commonwealth University Richmond, Virginia MedicalResearch.com: What is the background for this study? Response: As the prevalence and costs of heart failure are expected to increase through the year 2030, significant efforts have been devoted towards devising alternatives to inpatient hospitalization for the management of heart failure decompensations. Since loop diuretics are the mainstay of treatment during the majority of hospitalizations, administration of high doses of loop diuretics in the outpatient setting has increased in popularity. We intended to answer two questions with his study: first, can a patient-specific dosing protocol based on a patient’s usual diuretic dose achieve safe decongestion? and second, does this strategy alter the usual course of heart failure decompensation, which oftentimes culminates in inpatient hospitalization? (more…)
Author Interviews, Diabetes, Diabetologia, OBGYNE, Pediatrics, Weight Research / 19.08.2016

MedicalResearch.com Interview with: Dr. Gang Hu, Associate Professor LSU’s Pennington Biomedical Research Center & Director Chronic Disease Epidemiology Lab MedicalResearch.com: What is the background for this study? What are the main findings? Response: Some studies have found that maternal gestational diabetes mellitus (GDM) places offspring at increased risk of long-term adverse outcomes, including obesity. However, most of studies are from high income countries, with limited data from low to middle income countries. The present study, conducted at urban and suburban sites in 12 countries, found that the increased risk for children of GDM mothers compared with non-gestational diabetes mellitus mothers was 53% for obesity, 73% for central obesity, and 42% for high body fat. (more…)
Author Interviews, Diabetes, NEJM, OBGYNE, Technology / 19.08.2016

MedicalResearch.com Interview with: Professor Helen Murphy and Dr Zoe Stewart Institute of Metabolic Science University of Cambridge MedicalResearch.com: What is the background for this study? Response: Controlling blood glucose levels is a daily challenge for people with Type 1 diabetes and is particularly crucial during pregnancy. Previous research shows that women with type 1 diabetes spend only 12 hours per day within the recommended glucose target levels, leading to increased rates of complications including preterm delivery and large for gestational age infants. National surveys show that one in two babies suffer complications related to type 1 diabetes in the mother. The hormonal changes that occur in pregnancy make it difficult for women to predict the best insulin doses for every meal and overnight. Too much insulin causes low glucose levels harmful for the mother and too little causes problems for the developing baby. The artificial pancreas automates the insulin delivery giving better glucose control than we can achieve with currently available treatments. Previous studies show that the closed-loop system also known as artificial pancreas can be used safely in children and adults and our study aimed to investigate whether or not it was helpful for women with type1 diabetes during pregnancy. (more…)
Author Interviews, Brigham & Women's - Harvard, JAMA, Mental Health Research, OBGYNE / 19.08.2016

MedicalResearch.com Interview with: Krista F. Huybrechts, M.S., Ph.D. Assistant Professor of Medicine Harvard Medical School Epidemiologist Division of Pharmacoepidemiology and Pharmacoeconomics Brigham and Women’s Hospital Boston, MA 02120 MedicalResearch.com: What is the background for this study? Response: The use of antipsychotic medications during pregnancy has doubled in the last decade. Yet, information on the safety of antipsychotic medication use during pregnancy for the developing fetus is very limited: existing studies tend to be small (the largest study available to date includes 570 exposed women) and findings have been inconsistent. Concerns have been raised about a potential association with congenital malformations. The objective of our study was to examine the risk of congenital malformations overall, as well as cardiac malformations given findings from earlier studies, in a large cohort of pregnant women. We used a nationwide sample of 1.3 mln pregnant women insured through Medicaid between 2000-2010, of which 9,258 used an atypical antipsychotic and 733 used a typical antipsychotic during the first trimester, the etiologically relevant period for organogenesis. We also examined the risks associated with the most commonly used individual medications. (more…)
Author Interviews, JAMA, Prostate Cancer / 18.08.2016

MedicalResearch.com Interview with: Dr. Ahmedin Jemal, DVM, PhD Vice President, Surveillance and Health Services Research American Cancer Society MedicalResearch.com: What is the background for this study? What are the main findings? Response: We previously showed large decrease in early stage prostate cancer incidence rates from 2011 to 2012 in men 50 years and older following the US Preventive services Task Force recommendation against routine prostate-specific antigen testing in 2011. In this paper, we examined whether the decrease in early stage incidence persisted through 2013. We found that early stage prostate cancer incidence rates in men age 50 and older decreased from 2012 to 2013, although the decrease (6%) was lower compared to the decrease from 2011-2012 (19%). In contrast, rates for distant stage disease between 2012 and 2013 remained unchanged. (more…)
Author Interviews, Colon Cancer, Genetic Research, Journal Clinical Oncology, MD Anderson / 18.08.2016

MedicalResearch.com Interview with: Y. Nancy You, MD, MHSc Associate Professor Section of Colorectal Surgery Department of Surgical Oncology Medical Director Familial High-risk Gastrointestinal Cancer Clinic University of Texas MD Anderson Cancer Center MedicalResearch.com: What is the background for this study? What are the main findings? Response: Despite the progress in the treatment of many cancers, colorectal cancer (CRC) remains the third most common and lethal cancer in the US. Over 130,000 people are expected to be diagnosed and over 50,000 patients will die from CRC this year. In the recent years, the most exciting development has been our understanding of the molecular complexity of CRC. Currently, four major molecular subtypes of colorectal cancer are recognized. Our study focuses on the Consensus Molecular Subtype 1, which accounts for up to 15% of CRCs, and is characterized by a deficiency in DNA mismatch repair (dMMR), a high level of mutations (i.e. hypermutated), by instability in parts of the genome called microsatellites, and by strong immune activation. Prior to our study, patients with rectal cancer that belong to this molecular subtype have represented an unknown, in terms of their prognosis, and how the tumors respond to current treatments. More importantly, this molecular subtype harbor a genetic condition that can be transmitted within the family called “Lynch Syndrome”. So we designed our study to fill these gaps in our understanding that exist in this subtype of CRCs and to highlight key clinical care issues related to the caring for patients with a genetic syndrome. The main findings are that rectal cancers belonging to this molecular subtype have favorable prognosis, respond well to standard chemoradiation, and are linked to Lynch Syndrome and should be treated at centers with expertise in hereditary cancer syndromes. (more…)
Accidents & Violence, Author Interviews, Pediatrics / 18.08.2016

MedicalResearch.com Interview with: Kristi Roberts, MS, MPH Research associate Center for Injury Research and Policy Nationwide Children’s Hospital. MedicalResearch.com: What is the background for this study? Response: Strollers (such as these luxury strollers) and carriers are used regularly by caregivers and are intended to provide a safe and secure way to transport young children during everyday activities. However, parents and caregivers should be aware that injuries do occur while using these products. (more…)
Author Interviews, Dermatology / 18.08.2016

MedicalResearch.com Interview with: Thomas Bold President and CEO RenovaCare Inc. MedicalResearch.com: What is the background for the CellMist™ System? How are the stem cells harvested and processed? Response: Our flagship CellMist™ System makes use of a patient’s own stem cells, which are sprayed onto wounds using our novel SkinGun™ device. For patients suffering severe burns and other wounds, the prospect of a quick-healing, gentle spray containing their own stem cells will be a promising alternative to conventional skin graft surgery, which can be painful, prone to complications like infections, and slow-to-heal. Based on preliminary case studies, CellMist™ System patients can be treated within 90 minutes of arriving in an emergency room; a patient’s stem cells are isolated, processed, and sprayed on to the wound sites for rapid healing. The CellMist™ Solution is a liquid suspension containing a patient’s own regenerative skin stem cells. A small sample (as small as a square inch) of the patient’s skin is quickly processed to liberate the stem cells from surrounding tissue. The resulting product is referred to as the ‘CellMist™ Solution’. The CellMist™ Solution is placed in the SkinGun™ and gently sprayed onto the patient’s wound. (more…)