Author Interviews, Cancer Research, Dermatology, Radiation Therapy / 23.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47622" align="alignleft" width="145"]William I. Roth MD Dermatology and Dermatological Surgery Boynton Beach, FL Dr. Roth[/caption] 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.
Author Interviews, Health Care Systems, JAMA, Outcomes & Safety, Surgical Research / 22.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47615" align="alignleft" width="200"]Alexis G. Antunez MS University of Michigan Medical School, Ann Arbor Center for Healthcare Outcomes and Policy University of Michigan, Ann Arbor Alexis G. Antunez[/caption] 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. 
Author Interviews, Genetic Research, Smoking, Tobacco / 22.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47612" align="alignleft" width="150"]Dennis Drayna, PhD Chief of the Laboratory of Communication Disorders and the Section on Genetics of Communication Disorders National Institute on Deafness and Other Communication Disorders Part of the National Institutes of Health DR. Drayna[/caption] Dennis Drayna, PhD Chief of the Laboratory of Communication Disorders and the Section on Genetics of Communication Disorders National Institute on Deafness and Other Communication Disorders Part of the National Institutes of Health MedicalResearch.com: What is the background for this study? Response: In the United States, there are striking racial differences in the rate of menthol cigarette use.  Tobacco use is a major preventable source of morbidity and mortality in the population, and menthol cigarette use by African Americans represents an important issue for attempts to address minority health disparities. There have been many studies that have documented the role of inherited factors that contribute to smoking or tobacco use.  However, no studies have examined the role of genetic factors specifically in menthol tobacco use.  The preference for menthol cigarettes among African Americans has previously been attributed to cultural factors or industry advertising practices directed at this group. In our study, we asked whether genetic factors could explain why African-American smokers choose menthol cigarettes over non-menthol cigarettes. Our initial hypothesis was that variation in genes that encode the known menthol receptors was important in this difference, although we designed our study to look at all 21,000 protein-coding genes in the genome.
Accidents & Violence, Author Interviews, Cannabis / 22.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47609" align="alignleft" width="132"]Lonnie M. Schaible PhD Associate Professor School of Public Affairs University of Colorado Denver, CO Dr. Schaible[/caption] Lonnie M. Schaible PhD Associate Professor School of Public Affairs University of Colorado Denver, CO MedicalResearch.com: What is the background for this study? Response: Following legalization of recreational marijuana use in Colorado, strong -- but unsubstantiated -- claims were being made about crime surrounding marijuana dispensaries.  We wanted to know what the data would show.  We were especially interested in determining whether the addition of recreational facilities had any effects above and beyond those which might exist for medical dispensaries.  To better capture the dynamic landscape of marijuana legalization, this is the first study to control for the prior existence of medical dispensaries and assess how effects of both of these types of establishments changed over time.
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Exercise - Fitness / 22.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47606" align="alignleft" width="200"]Michael J. Wheeler Baker Heart and Diabetes Institute Melbourne, Victoria, Australia Michael J. Wheeler[/caption] Michael J. Wheeler Baker Heart and Diabetes Institute Melbourne, Victoria, Australia MedicalResearch.com: What is the background for this study? What are the main findings? Response: We conducted this study because separate lines of inquiry have determined that a bout of exercise can acutely lower blood pressure, and more recently that prolonged sitting can increase blood pressure over the space of a day. We wanted to know whether the blood pressure lowering effects of an exercise bout would be diminished by a subsequent period of prolonged sitting or enhanced by a subsequent period of sitting that is regularly interrupted with short walking breaks. We found an additive blood pressure lowering effect when exercise was combined with breaks in sitting as opposed to exercise plus prolonged sitting. However, this was only true for women. Men had equal blood pressure lowering effects following exercise regardless of whether-or-not subsequent sitting was interrupted
ASCO, Author Interviews, Prostate Cancer / 22.02.2019

MedicalResearch.com Interview with: Kim Nguyen Chi, MD FRCPC Professor of Medicine, University of British Columbia Regional Medical Director, BC Cancer - Vancouver MedicalResearch.com: What is the background for this study? What are the main findings? Response: For over 70 years, androgen deprivation therapy (ADT) has been the main treatment therapy for metastatic prostate cancer patients. This Phase 3 final analysis study looked at adding abiraterone acetate and prednisone to ADT for patients with metastatic prostate cancer, with the primary objectives being to assess improvements in overall survival and radiographic progression-free survival. At the first interim analysis reported in 2017, both primary endpoints were met, and the study was unblinded and patients on the ADT and placebos arm crossed over to receive ADT with abiraterone and prednisone. This study is the final analysis reporting on overall survival. The study findings found abiraterone acetate and prednisone plus ADT continued to demonstrate an improvement in overall survival, hazard ratio (HR) = 0.66, meaning a 34% decrease in the risk of death associated with the use of ADT with abiraterone and prednisone. The median overall survival, which had not been reached before in the ADT with abiraterone and prednisone arm, was 53.3 months compared to 36.5 months for ADT plus placebo, prolonging median overall survival by 16.8 months.
Author Interviews, Brigham & Women's - Harvard, Cancer Research, Hepatitis - Liver Disease, JAMA / 22.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47600" align="alignleft" width="200"]Xuehong Zhang, MD, ScD Assistant Professor in Medicine | Harvard Medical School Associate Epidemiologist | Brigham and Women's Hospital Boston, MA Dr. Xuehong Zhang[/caption] Xuehong Zhang, MD, ScD Assistant Professor in Medicine Harvard Medical School Associate Epidemiologist Brigham and Women's Hospital Boston, MA MedicalResearch.com: What is the background for this study? Response: In the United States., liver cancer incidence is rapidly increasing and over 42,200 new cases were projected to be diagnosed in 2018. The majority of individuals with liver cancer are diagnosed at a late stage, are not eligible for curative therapy, and die within 1 year of diagnosis. Established risk factors for liver cancer are limited to hepatitis B and C virus (HBV/HCV) infections, metabolic disorders, and smoking. Clearly, identification of novel risk factors, particularly those that are modifiable, is urgently needed. Dietary factors have been suspected as important, but only excessive alcohol use and aflatoxin-contaminated foods are considered to be established dietary risk factors for hepatocellular carcinoma (HCC). Consumption of whole grains and dietary fiber, especially cereal fiber, have been associated with lower risk of obesity, type 2 diabetes, and nonalcoholic fatty liver disease, which are known predisposing factors for HCC. We thus hypothesized that long-term intake of whole grains and dietary fiber may lower the risk of developing hepatocellular carcinoma (HCC) and tested this hypothesis using data from two large prospective cohort studies, the Nurses’ Health Study (NHS) and the Health Professionals Follow-up Study (HPFS).
AHA Journals, Artificial Sweeteners, Author Interviews, Stroke / 21.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47595" align="alignleft" width="125"]Yasmin Mossavar-Rahmani, Ph.D., RD Associate Professor Division of Health Promotion & Nutrition Research Dept. of Epidemiology & Population Health Albert Einstein College of Medicine Bronx, NY 10461 Dr. Mossavar-Rahmani[/caption] Yasmin Mossavar-Rahmani, Ph.D., RD Associate Professor Division of Health Promotion & Nutrition Research Dept. of Epidemiology & Population Health Albert Einstein College of Medicine Bronx, NY 10461 MedicalResearch.com: What is the background for this study? Response: This is the largest study of the effects of artificially sweetened beverages (ASB) in older women from the Women's Health Initiative Observational Study which started in 1993 and still continues to follow the women. A prior paper indicated excess risk of cardiovascular disease with high consumption of ASBs, but cardiovascular disease was a composite endpoint combining stroke, coronary heart disease, heart failure, revascularization and peripheral arterial disease.  Our study focusses on stroke by itself and with different subtypes of stroke. We define high consumption as two or more 12 fl oz. of diet drinks (diet soda or fruit drinks) per day and low consumption as no or less than one drink per week.
Author Interviews, Cost of Health Care, JAMA, Pharmacology / 21.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47591" align="alignleft" width="150"]Jennifer N. Goldstein, MD, MSc Assistant  program Director of Internal Medicine Christiana Care Health System Newark, Delaware Dr. Goldstein[/caption] Jennifer N. Goldstein, MD, MSc Assistant  program Director of Internal Medicine Christiana Care Health System Newark, Delaware MedicalResearch.com: What is the background for this study? Response: Human synthetic insulins have been available over-the-counter for nearly a century, and at relatively low cost for around a decade under a Walmart brand name. However, little is known about  the frequency of sale of over-the-counter insulin or the reasons why patients use it. While prescription insulins (insulin analogues) are considered by many to be easier to use and more predictable than the over-the-counter versions, the cost of these insulins has skyrocketed. Our study examined the frequency of sale of over-the-counter insulins and whether patients potentially use over-the-counter insulin as a substitute for expensive prescription insulins.
Author Interviews, Columbia, Depression, JAMA, OBGYNE, USPSTF / 21.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47579" align="alignleft" width="134"]Dr. Karina Davidson, PhD Professor of Behavioral Medicine (in Medicine and Psychiatry) Executive Director, Center for Behavioral Cardiovascular Health Columbia University Medical Center Dr. Davidson[/caption] Dr. Karina Davidson, PhD Professor of Behavioral Medicine (in Medicine and Psychiatry) Executive Director, Center for Behavioral Cardiovascular Health Columbia University Medical Center MedicalResearch.com: What is the background for this study? What are the main findings? Response: Perinatal depression, which includes depression that develops during pregnancy or after childbirth, is one of the most common complications of pregnancy and the postpartum period, affecting as many as 1 in 7 pregnant women. The Task Force found that counseling can help those who are at increased risk of developing perinatal depression, and clinicians should provide or refer pregnant and postpartum individuals who are at increased risk to counseling. Clinicians can determine who might be at increased risk of perinatal depression by looking at someone’s history of depression, current depressive symptoms, socioeconomic risk factors, recent intimate partner violence, and other mental-health related factors.
Author Interviews, McGill, PNAS / 20.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47561" align="alignleft" width="128"]Ben Gold, a PhD candidate Lab of Robert Zatorre The Neuro (Montreal Neurological Institute and Hospital) McGill University Ben Gold[/caption] Ben Gold, a PhD candidate Lab of Robert Zatorre The Neuro (Montreal Neurological Institute and Hospital) McGill University MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Music is just sound in air, but it carries considerable power. It captivates our brain’s reward system, we devote an enormous amount of time and money to it, and we're just beginning to tap its therapeutic potential. We wanted to explore how something so abstract could have such an impact, and since music is so well suited to establishing and manipulating patterns of sound as it unfolds, we focused on how it manipulates expectations. Previous research has shown that surprises are often the most emotional and pleasurable moments in music listening, but whether and how this engaged the brain's reward system was unclear. So we adapted an experimental protocol designed for studying learning and surprise about more concrete rewards like food or money, and applied it to a musical context during brain imaging. This protocol relies on participants making decisions from which we could infer their expectations, allowing us to estimate how surprised they were by each outcome whenever it occurred. In our case, we asked participants to make choices about colors and directions that were associated with different musical outcomes, but we didn't tell them what those associations were so that they they started with no expectations and learned as they went. We found that our participants could learn about music just like they would learn about how to find food or win money, and that the same neural process was involved. Specifically, we saw that the activity of the nucleus accumbens -- a central hub of the reward system -- reflected both how pleasant and how surprising each musical outcome was: a computation known as a reward prediction error. Across individuals, those who better represented these reward prediction errors in their nucleus accumbens also learned better about the music in the experiment, making more decisions over time to find the music they preferred. 
Author Interviews, Stroke / 19.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47566" align="alignleft" width="160"]Sunil A. Sheth, MD Department of Neurology UT Health McGovern School of Medicine Houston, TX 77030 Dr. Sheth[/caption] Sunil A. Sheth, MD Department of Neurology McGovern Medical School at UTHealth Houston, TX 77030 MedicalResearch.com: What is the background for this study? What are the main findings? Response: There is no country in the world where the absolute number of people living with or died from stroke has declined between 1990 and 2013. In the US, approximately 795,000 people experience a stroke each year with nearly 90% being acute ischemic stroke (AIS), which remains the leading cause of adult disability in the US. In 2015 landmark clinical trials demonstrated that endovascular stroke treatments (EST) for patients with large vessel occlusion (LVO) leads to dramatic improvements in patient outcomes. However, in the wake of these results, stroke systems of care around the globe are now faced with the daunting task of ensuring that patients with AIS have access to appropriate screening and therapy. The evidence of benefit for endovascular stroke that emerged from these trials was derived from treatments rendered almost exclusively at high volume stroke centers, with specialized neuro-imaging, neuro-intensive care, neuro-rehabilitation and neuro-nursing. However, since the publication and adoption of these findings into guidelines, it has become well-established that the likelihood of good neurologic outcome for these patients remains dependent on minimizing delays in treatment. Even 15-minute delays in endovascular reperfusion have been associated with quantifiable decrements in clinical outcomes. As such, there has been an increase in demand for the procedure as well as calls for the dissemination of the treatment away from tertiary-care referral centers into the community, to avoid the costly delays associated with inter-hospital transfer (IHT). On the other hand, transferring endovascular stroke patients to higher volume centers has also been associated with reduced mortality. In the absence of clear data on the relative efficacy of EST in lower volume centers, this lack of clarity on the optimal distribution of endovascular stroke resources had led to considerable confusion, with stroke center certifying agencies such as The Joint Commission initially requiring physician and hospital minimal EST volume requirements for certification, and then very recently revoking and then reinstating that criterion. Given the need to structure stroke systems of care in the modern endovascular stroke era, as well as the poorly characterized effect on EST outcomes away from tertiary-care referral centers, understanding the trends in treatment patterns as well as outcomes in relation to treatment volumes and IHT is of vital importance. The study described here provides for the first time large-scale data on the utilization of the procedure as well as the finding that its outcomes are directly tied to annual volumes.
Author Interviews, Cost of Health Care, JAMA, Pharmacology, University of Pittsburgh / 19.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47508" align="alignleft" width="150"]Alvaro San-Juan-Rodriguez Alvaro San-Juan-Rodriguez[/caption] Alvaro San-Juan-Rodriguez, PharmD Pharmacoeconomics, Outcomes and Pharmacoanalytics Research Fellow Pharmacy and Therapeutics School of Pharmacy University of Pittsburgh MedicalResearch.com: What is the background for this study? Response: Before 2009, etanercept (Enbrel®), infliximab (Remicade®), and adalimumab (Humira®) were the only tumor necrosis factor (TNF) inhibitors approved by the FDA for rheumatoid arthritis. Subsequently, 3 therapies gained FDA approval: subcutaneous golimumab (Simponi®) in April 2009, certolizumab pegol (Cimzia®) in May 2009, and intravenous golimumab (Simponi Aria®) in July 2013. All 6 agents are brand-name drugs. Our study aimed to evaluate how the prices of existing TNF inhibitors (Enbrel®, Remicade® and Humira®) changed in response to the market entry of new TNF inhibitors. 
Author Interviews, CMAJ, OBGYNE / 19.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47499" align="alignleft" width="149"]Anick Bérard PhD FISPE Research chair FRQS on Medications and Pregnancy Director, Réseau Québécois de recherche sur le médicament (RQRM) Professor, Research Chair on Medications, Pregnancy and Lactation Faculty of Pharmacy, University of Montrealand Director, Research Unit on Medications and Pregnancy Research Center CHU Ste-Justine Dr. Bérard[/caption] Anick Bérard PhD FISPE Research chair FRQS on Medications and Pregnancy Director, Réseau Québécois de recherche sur le médicament Professor, Research Chair on Medications, Pregnancy and Lactation Faculty of Pharmacy, University of Montrealand Director, Research Unit on Medications and Pregnancy Research Center CHU Ste-Justin   MedicalResearch.com: What is the background for this study? What are the main findings? Response: Yeast infections are common during pregnancy (10%). Although topical treatments are first-line therapies, yeast infections during gestation are often more severe and are resistant to topical options. Hence, low dose oral fluconazole is often the treatment of choice for pregnant women (1 dose for 1 day). Human and animal studies have shown that high dose of fluconazole is teratogenic.Few studies are available for the risk associated with low dose of fluconazole (the most used during pregnancy). Also, no one has studied the combined effect of low- and high-dose fluconazole use during pregnancy on overall adverse pregnancy outcomes (spontaneous abortions, stillbirths and major malformations). 
Author Interviews, Dermatology / 19.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47488" align="alignleft" width="199"]Cicatricial Alopecia Courtesy of Dr. Amy McMichael MD The Department of Dermatology Wake Forest Baptist Medical Center Winston-Salem, North Carolina  Cicatricial Alopecia
Courtesy of Dr. Amy McMichael MD
The Department of Dermatology
Wake Forest Baptist Medical Center
Winston-SalemNorth Carolina[/caption] Eli Sprecher MD PhD Professor and Chair, Division of Dermatology Deputy Director General for R&D and Innovation Tel Aviv Sourasky Medical Center Frederick Reiss Chair of Dermatology Sackler Faculty of Medicine Tel Aviv University, Tel Aviv, Israel and MedicalResearch.com: What is the background for this study? Response: Central centrifugal cicatricial alopecia (CCCA) is a form of hair loss (alopecia) which is extremely common and affects one in every 20 women of African origin. It starts usually during the fourth decade of life. Because it can be inherited from mothers to their children, it is thought to have a genetic basis. On the other hand, it is known to mainly affect women who use to groom their hair intensively. Thus it was thought that the disease stems from some form of inherited susceptibility to the damage incurred to the hair follicle by grooming habits. In the study we published, we searched for the genetic basis of CCCA. In contrast with the common form of alopecia (androgenetic alopecia or female pattern alopecia), CCCA is associated with scarring of the scalp skin, which means that once hair is lost, it will likely not re-grow.
Author Interviews, Personalized Medicine, Weight Research / 19.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47503" align="alignleft" width="130"]Ruth Loos, PhD The Charles Bronfman Professor in Personalized Medicine Director, Genetics of Obesity and Related Traits Program Co-Director, Charles Bronfman Institute for Personalized Medicine Icahn School of Medicine at Mount Sinai New York, NY Dr. Loos[/caption] Ruth Loos, PhD The Charles Bronfman Professor in Personalized Medicine Director, Genetics of Obesity and Related Traits Program Co-Director, Charles Bronfman Institute for Personalized Medicine Icahn School of Medicine at Mount Sinai New York, NY     MedicalResearch.com: What is the background for this study? Which type of body fat distribution carries greater risk of diabetes or other obesity-related health disorders? Response: Obesity broadly consists of two component; [1] there is overall body size (assessed using BMI) and [2] there is fat distribution (assessed using WHR). Both are “heritable”, which mean that they are in part determined by our genome (and the other part is determined by our lifestyle). Over the past 15 years, geneticists have used an approach to screen the whole genome of thousands of people to identify genetic variations that differ between e.g. obese people vs non-obese people. We have applied this approach to both components of obesity and have found so far that genes for “overall body size” seem to act in the brain, likely controlling hunger, satiety, reward, etc., whereas the genes that determine where in the body the excess fat will be stored when you gain weight (i.e. fat distribution) seem to act more “locally” at the fat cell level itself, determining the storage and release of fat. 
Author Interviews, Fertility / 19.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47545" align="alignleft" width="200"]Dr Simone Immler PhD School of Biological Sciences University of East Anglia  Dr. Immler[/caption] Dr Simone Immler PhD School of Biological Sciences University of East Anglia  MedicalResearch.com: What is the background for this study? Response: Sperm produced by one male vary substantially both in their genetic content as well as their swimming ability including speed and duration. In a previous study in the zebrafish, we showed that sperm swimming duration is at least partly determined by the underlying haploid genetic content carried by the different sperm within an ejaculate (alavioon et al. 2017 PNAS). If sperm with different swimming ability differ in their genetic content, we expect to see differences among the offspring sired by sperm that vary on their swimming ability. In our new study, we tested how selection on  sperm swimming duration affects offspring fitness. We performed in vitro fertilisation assays mimicking natural conditions in the externally fertilising zebrafish. We split the ejaculate of one male into two halves and in one half we added the sperm straight away to the eggs, allowing all motile sperm to have a go at fertilising an  egg. In the second half, we activated the sperm but delayed the moment of fertilisation by 25 seconds and thus selected for the longer swimming sperm. In this treatment only sperm that were still swimming after this period of time (about 50%) were able to fertilise an egg. We then reared the offspring to adulthood and measured number of offspring produced throughout life and measured lifespan. We found that sperm that were able to swim for longer sired offspring that not only produced more and healthier offspring but also lived for longer than their full siblings sired by sperm with reduced swimming ability. Our previous research (Alavioon et al. 2017 PNAS) suggests that these differences are caused at least partly by genetic differences among sperm.
Author Interviews, Genetic Research, OBGYNE / 18.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47542" align="alignleft" width="146"]Zhiyong Zhang PhD Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics Peking University Beijing China Prof. Zhang[/caption] Zhiyong Zhang PhD Key Laboratory for the Physics and Chemistry of Nanodevices Department of Electronics Peking University Beijing China MedicalResearch.com: What is the background for this study? What are the main findings? Response: Down syndrome is caused by the presence of an extra 21st chromosome within the genome and is the most common birth defect (occurring in approximately 1 in 800 births). In the absence of a multiplexed quantitative diagnostic device, pregnant women have been examined with the ultrasound and the indirect biochemical markers (Alpha-fetoprotein, chorionic gonadotropin and free estriol) which are accompanied with a high misdiagnosis rate. And the diagnostic test (such as amniocentesis) following the wrong screening test results will bring harm to both the pregnant women and the fetuses. Through PCR (polymerization chain reaction) amplification of the fetal DNA in the pregnant mother’s peripheral blood and fluorescence read-out, whole-genome sequencing (WGS)-based non-invasive prenatal testing (NIPT) sequences all the genomic DNA segments in parallel and quantitatively compares the percentage of different chromosomes, which increases the sensitivity for prenatal detection of Down syndrome. However, the complex instrumental setups and the resulted high processing cost present challenges for the large-scale application of WGS-based diagnosis at the point of care in the urban and rural areas of developing countries. Hence, beside the costly WGS method, there is an urgent need to develop a cost-effective NIPT biochip with simple instrumental setting, fast detection speed, high sensitivity, and programmable to multiple disease markers. Taking advantages of we have developed a novel field effect transistor (FET) based biosensor that reveals a fast, ultra-sensitive, highly specific and cost-effective methods and someday can be used to detect fetal Down syndrome in NIPT. 
Author Interviews, Exercise - Fitness, Geriatrics, Nutrition, Protein, Weight Research / 18.02.2019

[caption id="attachment_47536" align="alignleft" width="200"]Kristen M. Beavers Assistant Professor, Department of Health and Exercise Science Department of Biostatistical Sciences Wake Forest School of Medicine Winston-Salem, NC Dr. Beavers[/caption] MedicalResearch.com Interview with: Kristen M. Beavers PhD, MPH, RD Assistant Professor, Department of Health and Exercise Science Department of Biostatistical Sciences Wake Forest School of Medicine Winston-Salem, NC MedicalResearch.com: What is the background for this study? What are the main findings? Response: Weight loss recommendation for older adults with obesity is controversial, in part because overall weight loss is accompanied by loss of muscle and bone, which may exacerbate age-related risk of disability and fracture. Identification of interventions that can preserve muscle and bone while promoting fat loss should maximize cardiometabolic benefit, while minimizing potential harm to the musculoskeletal system. This randomized controlled trial was originally designed to test whether a higher protein, nutritionally complete meal plan could preserve lean mass and mobility in older adults undergoing a six month intentional weight loss program. Four publications have resulted from this study: * “Effect of an Energy-Restricted, Nutritionally Complete, Higher Protein Meal Plan on Body Composition and Mobility in Older Adults with Obesity,” Journals of Gerontology: Medical Sciences, published online in advance of print June 21, 2018 * “Effect of a Hypocaloric, Nutritionally Complete, Higher-Protein Meal Plan on Bone Density and Quality in Older Adults With Obesity,” American Journal of Clinical Nutrition, published online in advance of print Jan. 9, 2019 * “Effect of Intentional Weight Loss on Mortality Biomarkers in Older Adults With Obesity,” Journals of Gerontology: Medical Sciences, published online in advance of print Aug. 20, 2018 * “Effects of a Hypocaloric, Nutritionally Complete, Higher Protein Meal Plan on Regional Body Fat and Cardiometabolic Biomarkers in Older Adults with Obesity,” Annals of Nutrition and Metabolism, published online in advance of print Feb. 11, 2019 Across the four publications, we found that: * Participants lost about 18 pounds, most of it fat (87 percent), and preserved muscle mass. The control group lost about half a pound. * Even when participants lost weight, they maintained bone mass. In fact, trabecular bone score, a measure of bone quality which predicts fracture risk, seemed to improve. * Fat was lost in the stomach, hips, thighs and rear, which is important for preventing or controlling cardiometabolic diseases such as diabetes and stroke. * Participants’ score on the Healthy Aging Index, which measures biomarkers that predict mortality and longevity, improved by 0.75 points.
Author Interviews, Dermatology, Eli Lilly / 16.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47533" align="alignleft" width="200"]Lotus Mallbris, MD PhD Vice President, Head of Global Immunology Drug Development Platform Team Leader at Lilly Dr. Mallbris[/caption] Lotus Mallbris, MD PhD Dermatologist and Vice President, Head of Global Immunology Drug Development Platform Team Leader at Lilly MedicalResearch.com: What is the background for this study? Would you briefly explain what is meant by atopic dermatitis? How common is this condition?  Response:The BREEZE-AD1 and BREEZE-AD2 clinical trials are multicenter, randomized, double-blind, placebo-controlled, Phase 3 studies to evaluate the efficacy and safety of baricitinib monotherapy in adult patients with moderate to severe atopic dermatitis. These are two of five studies that will be part of the placebo-controlled data program intended to support global registrations. Atopic dermatitis, a serious form of eczema, is a chronic, relapsing skin disease characterized by intense itching, dry skin and inflammation that can be present on any part of the body. It affects approximately 1-3 percent of adults worldwide.
Author Interviews, Inflammation, JAMA, Kidney Disease, Pain Research, Stanford / 16.02.2019

MedicalResearch.com Interview with: Alan Nelson, MPAS, PhD Division of Primary Care and Population Health, Department of Medicine Stanford University School of Medicine Stanford, California  MedicalResearch.com: What is the background for this study?   Response: The past research literature has provided relatively little information on the appropriate level of concern regarding non-steroidal anti-inflammatory drugs (NSAIDs) and kidney disease risk among younger, apparently healthy patients. Clinicians are generally most concerned about the effects of these medications on the kidneys among patients with existing renal impairment and persons at risk for it, especially older patients. Given that NSAID use appears to be high and rising in the US, we were interested in developing evidence on this topic in a population of working-age adults.
Author Interviews, Brigham & Women's - Harvard, Heart Disease, Sleep Disorders / 16.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47525" align="alignleft" width="225"]Cameron S. McAlpine, Ph.D. Banting Postdoctoral Fellow Center for Systems Biology Massachusetts General Hospital Harvard Medical School Boston, MA, 02114 Dr. McAlpine[/caption] Cameron S. McAlpine, Ph.D. Banting Postdoctoral Fellow Center for Systems Biology Massachusetts General Hospital Harvard Medical School Boston, MA, 02114 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Cardiovascular disease is caused by the build up of white blood cells and fat in arteries. We have known for a long time that poor sleep is associated with an increased risk of developing cardiovascular disease. A number of human observational studies have found this correlation. However, the reasons for this correlation have been largely unknown. Our study, performed in mice, provides one possible explanation. We found that when we disturbed the sleep of mice they produced more inflammatory white blood cells. These cells caused larger lesions in their arteries and more advanced cardiovascular disease. We found that his phenomenon is controlled by a hormone produced in the brain that normally suppresses the production of white blood cells. When mice have their sleep disturbed this pathway breakdown causing the increased production of white blood cells.
Author Interviews, Emory, JAMA, Prostate Cancer, Radiation Therapy / 15.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47492" align="alignleft" width="200"]Deborah Watkins Bruner RN, PhD, FAAN Senior Vice President of Research Emory University Professor and Robert W. Woodruff Chair in Nursing Nell Hodgson Woodruff School of Nursing Professor, Department of Radiation Oncology Emory University School of Medicine Dr. Bruner[/caption] Deborah Watkins Bruner RN, PhD, FAAN Senior Vice President of Research Emory University Professor and Robert W. Woodruff Chair in Nursing Nell Hodgson Woodruff School of Nursing Professor, Department of Radiation Oncology Emory University School of Medicine MedicalResearch.com: What is the background for this study? Response: In a randomized clinical trial entitled, “Quality of Life in Patients With Low-Risk Prostate Cancer Treated With Hypofractionated vs Conventional Radiotherapy” the NRG Oncology Group previously demonstrated that men with low risk prostate cancer had  similar 5-year disease- free survival of about 85%  when treated with either conventional radiotherapy  (C-RT) of 73.8 Gy in 41 fractions over 8.2 weeks, or with  hypofractionated radiotherapy (H-RT) of 70 Gy in 28 fractions over 5.6  weeks. However, late physician reported side effects of mild bowel and bladder symptoms were increased in patients treated  with H-RT and raised questions if the H-RT arm is acceptable to patients. The current study asked the patient’s directly about their bowel, bladder, sexual function, anxiety, depression and general quality of life using valid patient reported questionnaires. These questionnaires have been found to be more accurate for reporting patient symptoms than physician report alone.
Author Interviews, Dermatology, JAMA, Johns Hopkins, Microbiome / 15.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47435" align="alignleft" width="80"]Dr-Luis Garza Dr. Garza[/caption] Luis Garza, MD-PhD Associate Professor Department of Dermatology Johns Hopkins School of Medicine Baltimore, MD 21287 MedicalResearch.com: What is the background for this study? What are the main findings?  Do you think these findings would be similar with other antibiotics (oral or topical) or with isotretinoin for acne? Response: We prescribe antibiotics frequently for acne. We certainly know it affects our normal and abnormal bacteria on our skin. But we don’t fully understand how well or not people recover from antibiotics. 
Author Interviews, Heart Disease, JAMA, Surgical Research / 15.02.2019

MedicalResearch.com Interview with: JOÃO L. CAVALCANTE, MD, FASE, FACC, FSCCT, FSCMR Director, Cardiac MRI and Structural CT Labs Director, Cardiovascular Imaging Research Core Lab Minneapolis Heart Institute Abbott Northwestern Hospital Minneapolis, MN, 55407 MIHO FUKUI MD Division of Cardiovascular Diseases, Department of Internal Medicine, Heart & Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, Minnesota MedicalResearch.com: What is the background for this study? Response: Recent study by Généreux et al (1), using the Placement of Aortic Transcatheter Valves (PARTNER) 2A and 2B data, provided the first framework of a staging system for severe aortic stenosis (AS) that quantifies the extent of structural and functional cardiac change associated with AS and importantly its association with 1-year mortality in patients receiving either surgical or transcatheter AVR (TAVR):
  • Stage 0: No other cardiac damage;
  • Stage 1: LV damage as defined by presence of LV hypertrophy, severe LV diastolic, or LV systolic dysfunction;
  • Stage 2: Left atrium or mitral valve damage or dysfunction;
  • Stage 3: Pulmonary artery vasculature or tricuspid valve damage or dysfunction; and
  • Stage 4: right ventricular damage.
ALS, Author Interviews, Statins / 15.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47512" align="alignleft" width="128"]Alastair J. Noyce MD, PhD  Preventive Neurology Unit, Wolfson Institute of Preventive Medicine Queen Mary University of London, Department of Clinical and Movement Neurosciences, University College London, Institute of Neurology, London UK Dr. Noyce[/caption] Alastair J. Noyce MD, PhD Preventive Neurology Unit, Wolfson Institute of Preventive Medicine Queen Mary University of London, Department of Clinical and Movement Neurosciences, University College London, Institute of Neurology, London UK MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Amyotrophic lateral sclerosis (ALS) or motor neurone disease (MND) is a relentlessly progressive disorder that affects nerves which supply muscles. Over time the nerves die, leading to limb weakness, speech and swallowing problems, and ultimately breathing problems. Patients die on average 3-5 after diagnosis. There is no cure and the underlying disease processes are only understood in part. In this study, we adopted a large-scale approach to exploring causal risk factors for ALS. Causality is important because it implies that if one could modify or induce a change in a risk factor, one would observe a change in the risk of ALS. Observational studies struggle to prove causality definitely. Associations in observational studies can arise because: 1) the risk factor truly changes risk of ALS; or 2) something about ALS changes one’s exposure to the risk factor; or 3) the presence of another factor, which may or may not be known, can induce an association between a risk factor and ALS. Unless scenario 1 represents the truth, then changing the risk factor will not have any effect on risk of ALS. We used a proxy-based approach, known as Mendelian randomisation, to assess hundreds of possible risk factors for ALS for evidence of causality. What emerged from this was a very clear signal linking LDL cholesterol to risk of ALS.
Author Interviews, Heart Disease, JACC / 13.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47482" align="alignleft" width="200"]Srikanth Yandrapalli, MD Chief Resident in Internal Medicine at New York Medical College at Westchester Medical Center Program  Dr. Yandrapalli[/caption] Srikanth Yandrapalli, MD Chief Resident in Internal Medicine at New York Medical College at Westchester Medical Center Program  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Risk factors play an important role in the development of and progression of coronary heart disease, thus necessitating strategies to address the leading modifiable risk factors to reduce the burden of coronary heart disease. Data are lacking regarding therecent temporal trends in the prevalence of these risk factors during a first AMI in US young adults. In our study, we report that among young adults in the US with a first acute myocardial infarction, the prevalence rates of major modifiable risk factors were very high with over 90% of patients having at least 1 such risk factor. Significant sex and racial disparities were observed. Sex differences in the rates of certain  risk factors were clearly evident with males having higher rates of smoking, dyslipidemia, and drug abuse, whereas females had higher rates metabolic risk factors like diabetes mellitus, hypertension, and obesity. Sex differences in the rates of certain risk factors narrowed with increasing age and over time. Blacks had higher rates of hypertension, obesity, and drug abuse, Whites had higher rates of smoking, Hispanics had higher rates of diabetes mellitus and patients of Asian/Pacific Islander race had higher rates of dyslipidemia. Prevalence rates progressively increased between 2005 and 2015 except for dyslipidemia for which a decreasing trend was noted more recently.
Author Interviews, BMJ, Cancer Research, HPV, OBGYNE / 13.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47478" align="alignleft" width="200"]Matejka Rebolj, PhD King’s College London, London, UK Dr. Rebolj[/caption] Matejka Rebolj, PhD King’s College London, London, UK [caption id="attachment_47479" align="alignleft" width="139"]Henry Kitchener, MD FRCOG FRCS University of Manchester, Manchester, UK Dr. Kitchener[/caption]   Professor Henry Kitchener, MD FRCOG FRCS University of Manchester, Manchester, UK   MedicalResearch.com: What is the background for this study? Response: We now have reliable and affordable technologies to detect human papillomavirus (HPV), a virus which is universally accepted as the cause of cervical cancer. Various large trials confirmed that cervical screening could be improved by replacing the smear (cytology) test that has been in use for decades, with HPV testing. Many countries are now making the switch. In England, this is planned for the end of 2019. To test how to run HPV testing within the English National Health Service, a pilot was initiated in 2013 in six screening laboratories. We also wanted to determine whether the encouraging findings from the trials could be translated to everyday practice. This is important not only because we will be using different HPV tests, but also because women undergoing screening in trials are much more selected than those who are invited to population-based screening. 
Annals Internal Medicine, Author Interviews, Exercise - Fitness, Heart Disease, Karolinski Institute, Weight Research / 13.02.2019

MedicalResearch.com Interview with: [caption id="attachment_47415" align="alignleft" width="150"]Pontus Henriksson | PhD and Registered Dietitian Postdoctoral Researcher | SFO-V Fellow Department of Biosciences and Nutrition Karolinska Institutet Dr. Henriksson[/caption] Pontus Henriksson | PhD and Registered Dietitian Postdoctoral Researcher | SFO-V Fellow Department of Biosciences and Nutrition Karolinska Institutet  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: In many countries, disability pensions are granted to working-aged persons who are likely to never work full-time again because of a chronic disease or injury diagnosed by a physician. In addition to serving as an important indicator of chronic disease, disability pensions are associated with high societal costs. Hence, we examined whether cardiorespiratory fitness and obesity (two potentially modifiable factors) were associated with disability pension later in life. Our main findings were that low physical fitness and/or obesity during adolescence, were strongly associated with disability pension later in life due to a wide range of diseases and causes.