Author Interviews, Epilepsy / 19.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52529" align="alignleft" width="160"]Steve S. Chung MD Epilepsy Neurology Banner University Medical Center University of Arizona, Phoenix, AZ Dr. Chung[/caption] Steve S. Chung MD Epilepsy Neurology Banner University Medical Center University of Arizona, Phoenix, AZ MedicalResearch.com: What is the background for this study? Response: Prior studies have shown that midazolam nasal spray (MDZ-NS) is superior to placebo in providing rapid, sustained seizure control and a favorable safety profile when administered to patients experiencing seizure clusters, a type of seizure emergency impacting an estimated 150,000 patients in the U.S. with uncontrolled epilepsy. To explore the influence of concomitant antiepileptic drugs (AEDs) on treatment outcomes, we conducted a post hoc analysis of a Phase III trial to evaluate the tolerability and efficacy of midazolam nasal spray in patients 12 years of age and older with seizure clusters, according to concomitant enzyme-inducing AED (EIAED)/non-enzyme-inducing AED (NEIAED) status and by the number of concomitant AEDs.
Author Interviews, Diabetes, JAMA, Nutrition / 18.12.2019

MedicalResearch.com Interview with: Dr Mathilde Touvier, MPH, PhD Head of the Nutritional Epidemiology Research Team Dr Bernard Srour, PharmD, PhD Inserm, Inrae, University of Paris MedicalResearch.com: What is the background for this study? Response: We found that for an increase of 10 in the percentage of ultra-processed food quantity in the diet, we had a significant 15% increase in Type 2 diabetes risk. We have already shown, in the NutriNet-Santé cohort, associations between the consumption of ultra-processed foods and overall cancer, breast cancer, cardiovascular, coronary heart diseases risk, mortality and depressive symptoms. However, no prior study had studies the associations between ultra-processed food and Type 2 diabetes risk. We suspected that we would find these associations since some components of ultra-processed foods light have metabolic interactions with human health (some food additives for instance).
Author Interviews, Breast Cancer, Exercise - Fitness / 16.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52481" align="alignleft" width="200"]Tiffany Won-Shau Chen MD Internal Medicine Residency Mount Sinai Beth Israel Dr. Chen[/caption] Tiffany Won-Shau Chen MD Internal Medicine Residency Mount Sinai Beth Israel MedicalResearch.com: What is the background for this study? Response: The research I presented on details a randomized, prospective study done to evaluate whether it would be feasible and effective to implement a yoga program for breast cancer patients receiving chemotherapy that could reduce patients' chemotherapy-related symptoms and improve their quality of life. 50 patients were recruited, half of whom underwent a 12-week long yoga program with weekly courses, while the other half did not participate in the program. Surveys were completed at baseline, 6 weeks, and 12 weeks assessing patients' functional wellbeing, sleep quality, and anxiety/depression levels.
Author Interviews, JAMA, Ophthalmology, Rheumatology / 15.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52467" align="alignleft" width="130"]Robert Ritch, MD, FACS, FARVO Shelley and Steven Einhorn Distinguished Chair Professor of Ophthalmology Surgeon Director Emeritus Chief, Glaucoma Services Emeritus The New York Eye and Ear Infirmary of Mount Sinai New York, NY 10003 Founder, Medical Director and Chairman, Scientific Advisory Board The Glaucoma Foundation Dr. Ritch[/caption] Robert Ritch, MD, FACS, FARVO Shelley and Steven Einhorn Distinguished Chair Professor of Ophthalmology, Surgeon Director Emeritus Chief, Glaucoma Services Emeritus The New York Eye and Ear Infirmary of Mount Sinai New York, NY 10003 Founder, Medical Director and Chairman, Scientific Advisory Board The Glaucoma Foundation  MedicalResearch.com: What is the background for this study? Response: Nailfold capillaroscopy (NFC), long used in rheumatology is a new approach to investigation of glaucoma. Posterior to the nailbed and just anterior to the proximal nailfold is the cuticle, which has no structural elements visible to the naked eye. NFC is a non-invasive imaging modality that provides a highly magnified view of the capillaries at the nailfold of digits. It has also been used in ophthalmology to show morphological changes at the nailfold capillaries of POAG and XFG/XFS patients, helping to confirm the systemic nature of these diseases. [caption id="attachment_52469" align="alignleft" width="400"]Nailfold Capillaroscopy Dr. Ritch Nailfold Capillaroscopy / Dr. Ritch[/caption] With nailfold capillaroscopy, an extensive array of capillaries can be seen greatly enlarged on a monitor screen. Capillary loops can be imaged, stored, recorded with videoscopy, and blood flow actively imaged and measured.. The first series of papers on glaucoma were written by Prof Josef Flammer’s group at the turn of the 21st century, looking at vasospasm, blood flow in normal-tension and high-tension glaucoma, and relating ocular blood flow alterations to systemic vascular regulation and relating laser Doppler flowmetry to NFC. Studies from Korea later associated nailbed hemorrhages and loss of nailbed capillaries to the presence of optic disc hemorrhages and investigated correlation of of heart rate variability with visual field defects and nailfold capillaroscopy. Studies by our group began with the publication in 2015 of a paper by Pasquale et al (Nailfold Capillary Abnormalities in Primary Open-Angle Glaucoma: A Multisite Study. IOVS;56:7021) using NFC video microscopy, associating dilated capillaries, avascular zones, and hemorrhages with primary open-angle glaucoma. Successive manuscripts and presentations at conferences have indicated differences between capillary loop patterns in high-tension and normal-tension POAG and exfoliation syndrome/exfoliation glaucoma. Our goal in this paper was to compare nailfold peripheral blood flow in XFG, which had not previously been compared to control subjects using NFC. We explored the peripheral blood flow at the nailfold of patients with high-tension glaucoma, normal-tension glaucoma, exfoliation glaucoma (XFG) and compared it to control subjects further evaluate the possible differences between these glaucoma entities. We examined the morphology and extent of nailfold capillary loops, vascular tortuosity, blood flow, and nailfold hemorrhages.
Author Interviews, Hematology, Lymphoma / 12.12.2019

MedicalResearch.com Interview with: Genentech Priscilla White, spokesperson Senior Manager, Corporate Relations Genentech MedicalResearch.com: What is the background for this study? What are the main findings?
  • Response: Mosunetuzumab is a T-cell engaging bispecific antibody designed to target CD20-positive B-cell blood cancers, by binding to both CD20 (on the surface of B-cells) and CD3 (on the surface of T-cells).
  • Analyses from the ongoing Phase I/Ib GO29781 study indicate that mosunetuzumab can produce durable responses in patients who have relapsed or who are refractory to prior treatment(s), including those who have relapsed or who are resistant to CAR T-cell therapy.
  • Results from this dose-escalation study showed encouraging efficacy with an objective response rate (ORR) of 62.7 percent (n=42/67) in slow-growing Non-Hodgkin Lymphoma and 37.1 percent (n=46/124) in aggressive NHL across all dose levels assessed.
  • Additionally, data demonstrated a complete response (CR) rate of 43.3 percent (n=29/67) in slow-growing NHL and 19.4 percent (n=24/124) in aggressive NHL. CRs showed durability, with 82.8 percent (n=24/29) of patients with slow-growing NHL remaining in remission up to 26 months off initial treatment and 70.8 percent (n=17/24) of patients with aggressive NHL, remaining in remission up to 16 months off initial treatment.
  • Of the participants who received prior CAR T-cell therapy, the ORR was 38.9 percent (n=7/18), and 22.2 percent (n=4/18) achieved a CR.
  • Adverse reactions included cytokine release syndrome (CRS) in 28.9 percent of patients with 20.0 percent at Grade 1 and 1.1 percent at Grade 3. Grade 3 neurological adverse events occurred in 3.7 percent of patients.
Author Interviews, Medical Imaging, Technology / 11.12.2019

MedicalResearch.com Interview with: Dr. David Steiner, MD PhD Google Health, USA MedicalResearch.com: What is the background for this study? Response: Advances in artificial intelligence raise promising opportunities for improved interpretation of chest X-rays and many other types of medical images. However, even before researchers begin to address the critical question of clinical validation, there is important work to be done establishing strategies for evaluating and comparing different artificial intelligence algorithms. One challenge is defining and collecting the correct clinical interpretation or “label” for the large number of chest X-rays needed to train and evaluate these algorithms. Another important challenge is evaluating the algorithm on a dataset that actually represents the diversity of the cases encountered in clinical practice. For example, it might be relatively easy to make an algorithm that performs perfectly on a few hundred or so “easy” cases, but this of course might not be particularly useful in practice.
Author Interviews, Cancer Research, Dermatology, JAMA / 11.12.2019

MedicalResearch.com Interview with: Lily Wang Student at University of Toronto Toronto, Ontario, Canada  MedicalResearch.com: What is the background for this study? Response:  Impaired skin barrier and aberrant immune function in atopic dermatitis (AD) may impact immune response to malignancy. Conflicting data exist on the risk of cancer in patients with AD. The purpose of our study was to determine the risk of non-cutaneous and cutaneous cancers in patients with atopic dermatitis compared to the general population (i.e. without AD). 
Author Interviews, HIV, JAMA, Sexual Health, STD / 11.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52403" align="alignleft" width="200"]Jason Ong, PhD, MMed, MBBS, FAChSHM, FRACGP Twitter: @DrJasonJOng Sexual Health Physician, Melbourne Sexual Health Centre, Alfred Health Associate Professor (Hon), London School of Hygiene and Tropical Medicine, UK Central Clinical School, Monash University, Australia Melbourne School of Population and Global Health, University of Melbourne, Australia  Associate Editor, Sexually Transmitted Infections Special Issues Editor, Sexual Health Board Director, ASHM  Dr. Jason Ong[/caption] Jason Ong, PhD, MMed, MBBS, FAChSHM, FRACGP Twitter: @DrJasonJOng Sexual Health Physician, Melbourne Sexual Health Centre, Alfred Health Associate Professor (Hon), London School of Hygiene and Tropical Medicine, UK Central Clinical School, Monash University, Australia Melbourne School of Population and Global Health, University of Melbourne, Australia Associate Editor, Sexually Transmitted Infections Special Issues Editor, Sexual Health Board Director, ASHM   MedicalResearch.com: What is the background for this study? Response: HIV pre-exposure prophylaxis (PrEP) is being rolled out globally. This will protect many people from HIV, however PrEP does not protect against other sexually transmitted infections (STI). So we wanted to quantify how much STIs are in PrEP users as a means to advocate to strengthen sexual health services in these settings where PrEP is being offered.
Author Interviews, Autism, Neurology / 11.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52438" align="alignleft" width="159"]Dr. Neil Dawson PhD Senior Lecturer Lancaster University Dr. Dawson[/caption] Dr. Neil Dawson PhD Senior Lecturer Lancaster University MedicalResearch.com: What is the background for this study? Response: Deletions on chromosome 2p16.3, involving deletion of the NEUREXIN1 gene, dramatically increase the risk of developing a wide range of neurodevelopmental disorders including autism, Tourette’s syndrome and schizophrenia. We don’t fully understand the mechanisms involved. In our study we wanted to understand how the genetic deletion impacts on brain function and the ability of brain regions to communicate with one another, as these are known to be impaired in these neurodevelopmental disorders. We also wanted to determine how the genetic deletion impacts on the function of neurotransmitter systems involved in these disorders, and whether drugs targeting these neurotransmitter systems could restore some of the deficits in brain function seen.
Author Interviews, Breast Cancer, Cancer Research / 10.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52426" align="alignleft" width="130"]Jian Jin, Ph.D. Mount Sinai Endowed Professor in Therapeutics Discovery Professor, Department of Pharmacological Sciences Professor, Department of Oncological Sciences Director, Mount Sinai Center for Therapeutics Discovery Co-leader, Cancer Clinical Investigation Program, Tisch Cancer Institute Icahn School of Medicine at Mount Sinai  Dr. Jian Jin[/caption] Jian Jin, Ph.D. Mount Sinai Endowed Professor in Therapeutics Discovery Professor, Department of Pharmacological Sciences Professor, Department of Oncological Sciences Director, Mount Sinai Center for Therapeutics Discovery Co-leader, Cancer Clinical Investigation Program, Tisch Cancer Institute Icahn School of Medicine at Mount Sinai  MedicalResearch.com: What is the background for this study? Response: Triple-negative breast cancer (TNBC), a subtype of breast cancer that lacks estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2), represents 12-20% of all breast cancers. TNBC has poor prognosis, high recurrence, a low survival rate, and has higher incidence in African-American and Hispanic women. Currently, there are no effective therapies for treating a substantial portion of TNBC patients. Enhancer of zeste homolog 2 (EZH2) is the main enzymatic subunit of the polycomb repressive complex 2 (PRC2) which catalyzes trimethylation of histone H3 lysine 27 (H3K27me3) to promote transcriptional silencing. EZH2 is overexpressed in multiple types of cancer including triple negative breast cancer (TNBC) and high expression levels correlate with poor prognosis. Several EZH2 inhibitors which inhibit the enzymatic activity of EZH2 have shown promise in treating sarcoma and follicular lymphoma in clinics. However, current EZH2 inhibitors are ineffective at blocking proliferation of TNBC cells even though they effectively inhibit the enzymatic activity of EZH2. While the proteolysis targeting chimera (PROTAC) technology for selective degradation of the target protein has been rapidly gaining momentum in the drug discovery field, the hydrophobic tagging approach for selective protein degradation has received considerately less attention from the scientific community. 
Author Interviews, Health Care Systems, University of Pittsburgh / 10.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52414" align="alignleft" width="188"]Hayley Drew Germack PhD Assistant Professor of Acute and Tertiary Care University of Pittsburgh School of Nursing Dr. Hayley Drew Germack[/caption] Hayley Drew Germack PhD Assistant Professor of Acute and Tertiary Care University of Pittsburgh School of Nursing MedicalResearch.com: What is the background for this study? Response: The rate of rural hospital closures has been increasing over the last ten years. Rural hospitals close for a number of reasons including poor hospital economic health tied to uncompensated care and community factors, like a local aging population. Rural hospital and unit closures have been tied to decreased access to emergency and specialty care for patients including decreased access to obstetric-gynecological services and increase travel time for appointments. A recent paper also found a 6% increase in mortality in conditions needing emergent attention after rural hospital closures. We examined the impact of hospital closures in rural counties on the counties’ supply of physicians.
Addiction, Author Interviews, Opiods, Technology / 10.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52410" align="alignleft" width="148"]Anna Konova, PhD Assistant Professor, Dept. of Psychiatry & UBHC Core Faculty, Brain Health Institute Rutgers University - New Brunswick Dr. Anna Konova[/caption] Anna Konova, PhD Assistant Professor, Dept. of Psychiatry & UBHC Core Faculty, Brain Health Institute Rutgers University - New Brunswick MedicalResearch.com: What is the background for this study? Response: Opioid reuse and relapse are common outcomes even when a person is seeking treatment for their addiction. These reuse events pose many health risks, as well as risk for treatment failure. We currently lack the much needed tools to understand and predict this reuse vulnerability. In this study, we used computer games that assess a person's decision making process, to get at psychological processes related to how people make decisions involving risks, when they transitioned between lower and higher reuse vulnerability states during the first few months of opioid treatment.
Author Interviews, Autism, Genetic Research, Nature, Pediatrics / 10.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52406" align="alignleft" width="200"]Dr. Stephen Scherer, PhD, FRSC Senior Scientist, Genetics & Genome Biology Director, The Centre for Applied Genomics SickKids Hospital Toronto Dr. Scherer[/caption] Dr. Stephen Scherer, PhD, FRSC Senior Scientist, Genetics & Genome Biology Director, The Centre for Applied Genomics SickKids Hospital Toronto MedicalResearch.com: What is the background for this study? Response: One of the most common questions we get from parents with a child with autism is, "what is the likelihood of having a second or third child with autism, and what is the chance others in our family will have kids with autism?". To help provide answers to these questions, we started the infant (or baby) siblings study ten years ago. Families having an older sibling with a diagnosis of autism were invited to enroll their next born for assessment and following to see if they also developed autism, and what the likelihood of that happening was. Biological samples like blood, and DNA from blood, were also collected and tested. 
Author Interviews, Infections, OBGYNE / 04.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52348" align="alignleft" width="145"]Giovanni Piedimonte, MD, FAAP, FCCP Vice President for Research Institutional Official Professor of Pediatrics Tulane University Dr. Piedimonte[/caption] Giovanni Piedimonte, MD, FAAP, FCCP Vice President for Research Institutional Official Professor of Pediatrics Tulane University MedicalResearch.com: What is the background for this study? Response: We have been testing the hypothesis that, when a pregnant woman catches a common cold with a virus called respiratory syncytial virus (RSV), viral particles can spread from the mother’s respiratory tract to the unborn child via the placenta. Preliminary data in animal models suggest that this is possible, and might cause changes in lung growth predisposing the offspring to develop asthma after birth. Recently, also human data have supported this theory. However, an essential step to conclusively demonstrate vertical transmission of respiratory viruses was the confirmation that human placentas can be infected and allow the transmission of such germs, which is the main finding of this study.
Author Interviews, Biomarkers, Prostate Cancer / 02.12.2019

MedicalResearch.com Interview with: Dr Jeremy Clark University of East Anglia Norwich Medical School MedicalResearch.com: What is the background for this study? Response: Earlier this year we published our pilot study which showed how useful we have found urine to be for diagnosing prostate cancer and predicting which cancers will get bigger and nastier up to 5 years later (Connell et al 2019). – Our PUR (Prostate Urine Risk) signatures separated men with low-risk cancer into two groups one of which had 8-times the rate of future development of aggressive cancer that the other. There is nothing in clinical use at present that can do this. The new development is our At-Home Urine collection system which means that we can now send out a urine collection kit to a man at home, he fills up a small pot with his first wee of the day and posts it back to us for PUR analysis. This makes the whole system so much less stressful for the patient. The idea behind it is as follows: the prostate lays just below the bladder, it is a secretory organ and these secretions carry cells and molecules from all over the prostate to the urethra which then get flushed out of the body on urination. If a cancer is present then tiny bits of the tumour are also carried with the secretions and we can detect these in the urine. As the prostate is constantly secreting the levels of biomarkers in the urethra will build up with time. Collecting from the first wee of the day means that overnight secretions can be collected which makes the analysis more sensitive and more robust.
Author Interviews, Education, JAMA, Race/Ethnic Diversity, Social Issues / 02.12.2019

MedicalResearch.com Interview with: [caption id="attachment_52334" align="alignleft" width="150"]Lynn Blewett, PhD Mayo Professor, Division of Health Policy and Management Director, State Health Access Data Assistance Center (SHADAC) University of Minnesota Dr. Blewett[/caption] Lynn Blewett, PhD Mayo Professor, Division of Health Policy and Management Director, State Health Access Data Assistance Center (SHADAC) University of Minnesota MedicalResearch.com: What is the background for this study? Response: We used a new set of questions about patient's perspectives of cultural competence of their providers that was added to the National Health Interview Survey and accessed through the Minnesota Population Center IPUMS Health Surveys.   MedicalResearch.com: What should readers take away from your report? Response: Most patients (97%) report being treated with respect by their providers. BUT we also found important disparities.  Black or Hispanic (vs White), uninsured (vs insured), and low income (vs >200% FPL) individuals reported being treated with respect less often, viewed a shared culture as more important, and saw providers who shared culture less often.
AHA Journals, Author Interviews, Gender Differences, Stroke / 30.11.2019

MedicalResearch.com Interview with: [caption id="attachment_52330" align="alignleft" width="75"]Cheryl Carcel MD Research Fellow, Stroke & Women's Health Program Conjoint Senior Lecturer, Faculty of Medicine, UNSW Sydney Associate Lecturer, Sydney Medical School, The University of Sydney The George Institute for Global Health | Australia Dr. Carcel[/caption] Cheryl Carcel MD Research Fellow, Stroke & Women's Health Program Conjoint Senior Lecturer, Faculty of Medicine, UNSW Sydney Associate Lecturer, Sydney Medical School, The University of Sydney The George Institute for Global Health | Australia MedicalResearch.com: What is the background for this study? Response: This study builds on previous findings of differences in the presentation, treatment and outcome for women and men who experience stroke. For this analysis, we pooled five large international, multicenter, randomized controlled trials that included the following: the Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trials (INTERACT-1 and -2 studies), the alteplase-dose arm of the Enhanced Control of Hypertension and Thrombolysis Stroke study (ENCHANTED), the Head Position in Acute Stroke Trial (HeadPoST), and the Scandinavian Candesartan Acute Stroke Trial (SCAST).
Aging, Author Interviews, JAMA, Opiods / 27.11.2019

MedicalResearch.com Interview with: [caption id="attachment_52316" align="alignleft" width="107"]Yong-Fang Kuo, PhD Professor and Director, Office of Biostatistics Don W. and Frances Powell Professor in Aging Research Dr. Yong-Fang Kuo[/caption] Yong-Fang Kuo, PhD Professor and Director, Office of Biostatistics Don W. and Frances Powell Professor in Aging Research [caption id="attachment_52317" align="alignleft" width="124"]Mukaila Raji, MD, MS, FACP Professor & Director Edgar Gnitzinger Distinguished Professorship in Aging Dr. Mukaila Raji[/caption] Mukaila Raji, MD, MS, FACP Professor & Director Edgar Gnitzinger Distinguished Professorship in Aging Preventive Medicine and Population Health UTMB Health MedicalResearch.com: What is the background for this study? Response: Medicare beneficiaries who qualified because of disability constitute a growing population of patients hospitalized for opioid/heroin overdose. Although the CDC regularly generates reports of opioid overdose deaths by demographics and states, studies on policy actionable predictors of overdose mortality (e.g., clusters of medical and psychiatric conditions, types of disabling conditions) are lacking in this population. 
Author Interviews, JAMA, Smoking, Tobacco, Tobacco Research / 21.11.2019

MedicalResearch.com Interview with: Amy L. Nyman, MA Research Associate Georgia State University, School of Public Health Atlanta, GA 30303 Coauthors: Nyman, Huang, Weaver, Eriksen MedicalResearch.com: What is the background for this study? Response: Though the negative health consequences of smoking combustible cigarettes have been well-established and widely accepted, there has been significant public debate about the health effects of Electronic Nicotine Delivery Systems (ENDS) use, and the extent to which use of ENDS may present less health risk to smokers than smoking combustible cigarettes. Many tobacco control researchers and scientists believe that ENDS use is safer than combustible cigarette smoking, though recent news of an expansive outbreak of vaping-related lung illnesses and deaths has led to continued speculation. A prior study of perceived comparative harm of combustible cigarettes and ENDS revealed the proportion of US adults perceiving ENDS to be as harmful as, or more harmful than combustible cigarettes increased substantially between 2012 and 2017. Given recently proposed regulations and the escalating focus on the impact of ENDS use on youth in the past few years, our study assessed changes in perceived comparative harm of combustible cigarettes and ENDS among US adults since the prior study, between 2017 and 2018. 
Author Interviews, Heart Disease / 20.11.2019

MedicalResearch.com Interview with: [caption id="attachment_52237" align="alignleft" width="150"]Matthew Budoff MD Professor of Medicine, UCLA Endowed Chair of Preventive Cardiology Lundquist Institute Torrance, CA 90502 Matthew Budoff MD

[/caption] Matthew Budoff MD Professor of Medicine, UCLA Endowed Chair of Preventive Cardiology Lundquist Institute Torrance, CA 90502 MedicalResearch.com: What is the background for this study? Response: We present the nine-month interim analysis results from the EVAPORATE mechanistic study of Icosapent Ethyl, after benefits were seen with the REDUCE-IT Trial, demonstrating 25% event reduction. This trial was a serial multi-detector computed tomographic (MDCT) study to look at plaque progression between icosapent ethyl (4 gm/day) and matching placebo. 
Author Interviews, Biomarkers, Schizophrenia / 29.10.2019

[caption id="attachment_51978" align="alignleft" width="200"]Dr.  Takeo Yoshikawa MD PhD RIKEN Center for Brain Science Japan Dr. Yoshikawa[/caption] MedicalResearch.com Interview with: Dr.  Takeo Yoshikawa MD PhD RIKEN Center for Brain Science Japan MedicalResearch.com: What is the background for this study? What are the main findings?
  • Currently available drugs for schizophrenia are the dopamine D2 receptor blockers. These compounds were serendipitously discovered over half-century ago. But about 30% of schizophrenia are resistant to the dopamine D2 receptor blockers. In spite of these conditions, pharmaceutical companies have abandoned the development of new drugs. This is because we do not know the principle of drug design.
  • Therefore, we need to understand the molecular underpinning of as-yet unknown schizophrenia pathophysiology. Schizophrenia is diagnosed by only patients’ symptoms, not by biological examination. To search for biological underpinning for schizophrenia using experimental animals, we thought that we should examine an endophenotype (biological trait) relevant to schizophrenia. Then we targeted prepulse (PPI) performance.
  • Here, dampened PPI is considered as a biological marker of psychiatric disorders, typically of schizophrenia. Importantly, PPI can be measured using the same behavioral paradigm between experimental animals and human.
  • C57BL/6 (B6) inbred mouse shows higher (better) prepulse inhibition (PPI) performance, while C3H/He (C3H) inbred mouse shows lowered (worse ) PPI. We premised that C3H mouse is “schizophrenia-prone” and B6 is not. To know the molecular basis for differential PPI levels between the two inbred mouse strains, we performed comprehensive protein expression level analysis (proteomics analysis) using the brains of B6 and C3H mice.
  • The expression levels of Mpst, a hydrogen sulfide (H2S)-producing enzyme, is elevated in C3H mouse compared to B6 mouse. Biochemical analysis also supported the elevated H2S production in C3H mouse compared to B6.
  • The examination of human samples including postmortem brains, iPS-derived neural stem cells (neurospheres) and hair follicle cells, gave evidence that H2S production system is indeed up-regulated in schizophrenia.
Addiction, Author Interviews, Mental Health Research, Technology / 29.10.2019

MedicalResearch.com Interview with: Zsolt Demetrovics PhD and Orsolya Király PhD Department of Clinical Psychology and Addiction Institute of Psychology ELTE Eötvös Loránd University MedicalResearch.com: What is the background for this study? Response: Gaming disorder has recently been recognized by the World Health Organization (WHO) as a mental disorder. Research examining gaming motivations and mental health among video gamers and in relation with gaming disorder is increasing but different types of gamers such as recreational gamers and esport gamers are not commonly distinguished. Esport is form of electronic sport and refers to playing video games in a professional (competitive) manner in sports-like tournaments. Much like in the case of traditional sports, esport players and teams are sponsored, tournaments are broadcasted and followed by large audiences and have large financial prizes. Therefore, being an esports player in now a real career opportunity for teenagers and young adults who like playing video games. 
Author Interviews, JAMA, Pediatrics, Smoking, Tobacco / 23.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51902" align="alignleft" width="200"]Andrea Villanti, PhD, MPH Associate Professor Department of Psychiatry Vermont Center on Behavior and Health University of Vermont Dr. Villanti[/caption] Andrea Villanti, PhD, MPH Associate Professor Department of Psychiatry Vermont Center on Behavior and Health University of Vermont  MedicalResearch.com: What is the background for this study? Response: Our earlier work documented a significant association between first use of a flavored tobacco product and current tobacco use (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5522636/) in a cross-sectional sample. The goal of this study was to examine whether there was a prospective relationship between first use of a flavored tobacco product and subsequent use of that product in longitudinal data.. 
Author Interviews, Cost of Health Care, Health Care Systems / 22.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51910" align="alignleft" width="200"]David S Buck, MD, MPH Associate Dean of Community Health Professor, Clinical Sciences University of Houston - College of Medicine Houston, TX 77204 Dr. Buck[/caption] David S Buck, MD, MPH Associate Dean of Community Health Professor, Clinical Sciences University of Houston - College of Medicine Houston, TX 77204  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: High-Needs, High-Cost (HNHC) patients account for 5% of the general population and cost 50% of the healthcare spending. In Harris County, one patient alone costed $439,600 in a year when he visited multiple medical, social and behavioral agencies for care. This was a result of siloed systems working independently of each other leading to inefficient care for the patient. By providing coordinated care, using patient-centered goals and values, we are able to better engage and provide a holistic approach to patient care.  This paper introduces a novel ‘values-based’ intervention mechanism for the HNHC patients, in addition to a coordinated care management approach, through a single record system. The findings indicate an improved daily functioning of the HNHC patients over 4 months, improved relationship between the providers and the patients and moderate well-being scores.
Author Interviews, Dental Research / 22.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51897" align="alignleft" width="146"]Robert Margolskee, MD, PhD Director and President  Monell Center Adjunct Professor, Department of Systems Pharmacology and Translational Therapeutics University of Pennsylvania Perelman School of Medicine Dr. Margolskee[/caption] Robert Margolskee, MD, PhD Director and President Monell Center Adjunct Professor, Department of Systems Pharmacology and Translational Therapeutics University of Pennsylvania Perelman School of Medicine MedicalResearch.com: What is the background for this study? What are the main findings? Response: We found chemical-sensing cells in the gums that protect the mouth by standing guard against infections that damage soft tissue and destroy the bone that supports the teeth. With the help of bitter taste receptors that also detect byproducts from harmful bacteria, these special gum cells trigger the immune system to control the amount and type of bacteria in the mouth. This knowledge could one day lead to personalized dental treatments against gum disease. Periodontitis is a serious gum disorder caused by an imbalance in the bacteria and other microorganisms of the mouth. We hope that our new information can help to combat this sixth-most prevalent infectious disease and most common cause of tooth loss worldwide.
Author Interviews, Heart Disease, Pharmaceutical Companies, Pulmonary Disease / 21.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51892" align="alignleft" width="85"]Olivier Sitbon, MD, PhD Université Paris–Sud Dr. Sitbon[/caption] Olivier Sitbon, MD, PhD Université Paris–Sud  MedicalResearch.com: What is the background for this study? How does this treatment competition differ from other treatments for PAH?  Response:  Pulmonary arterial hypertension (PAH) is a complex, progressive and potentially fatal disease with no cure. Over the past decades, advances in understanding the pathophysiology of PAH have led to major prognostic improvement and developments of new treatment guidelines and therapies. Current treatment guidelines recommend initial combination therapy for these patients to target multiple PAH-associated pathways in parallel. OPTIMA was a prospective, multicenter, single-arm, open-label, Phase IV trial designed to evaluate the efficacy, safety and tolerability of initial oral combination therapy with macitentan and tadalafil in patients with newly diagnosed PAH. Treatment with macitentan 10 mg once-daily and tadalafil 20 mg once-daily was initiated on the same day. After 8±3 days, tadalafil dose was increased to 40 mg once-daily. Safety and tolerability findings were consistent with previous clinical trials that supported the approval and use of macitentan 10 mg once-daily. Efficacy outcomes were assessed at Week 16 and safety continued to be monitored until study closure. The results from the OPTIMA analysis suggest that initial treatment with macitentan in combination with tadalafil is associated with hemodynamic improvement in newly diagnosed patients with pulmonary arterial hypertension
AACR, Author Interviews, Melanoma / 20.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51877" align="alignleft" width="133"]Dr. Qing Chen Dr. Qing Chen[/caption] Qing Chen, M.D., Ph.D. Assistant Professor, Immunology, Microenvironment & Metastasis Program Scientific Director, Imaging Facility The Wistar Institute MedicalResearch.com: What is the background for this study? Response: We are focusing on how a specific type of brain cells, astrocytes, helps the cancer cells from melanoma and breast cancer to form metastatic lesions. 
Author Interviews, Global Health, HIV / 14.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51848" align="alignleft" width="200"]Rosalie Hayes Senior Policy & Campaigns Officer NAT (National AIDS Trust)  Rosalie Hayes[/caption] Rosalie Hayes Senior Policy & Campaigns Officer NAT (National AIDS Trust) MedicalResearch.com: What is the background for this study? Response: The international community has committed to the Sustainable Development Goal of ending the AIDS epidemic by 2030 (SDG 3.3). Pre-exposure prophylaxis (PrEP) for HIV infection involves the use of antiretroviral drugs by people at high risk of acquiring HIV, and its efficacy of PrEP is well-documented. To help achieve SDG 3.3, the Joint United Nations Programme on HIV/AIDS (UNAIDS) has recommended as one of its global targets that 3 million people access PrEP by 2020. For this paper, we examined European Centre for Disease Prevention and Control (ECDC) and UNAIDS monitoring data from Europe and Central Asia (the 53 countries of the WHO European Region plus Kosovo* and Liechtenstein) to identify what progress has been made in implementing PrEP in these countries. We also used data on self-reported PrEP use and expressed need for PrEP among men who have sex with men (MSM) from the European MSM Internet Survey (EMIS-2017) to calculate an estimate of the level of unmet need for PrEP in each country, what we term the ‘PrEP gap’. 
Author Interviews / 09.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51791" align="alignleft" width="133"]Dr. Aurimas Vyšniauskas PhD Center for Physical Sciences and Technology Vilnius, Lithuania Dr. Vyšniauskas[/caption] Dr. Aurimas Vyšniauskas PhD Center for Physical Sciences and Technology Vilnius, Lithuania MedicalResearch.com: What is the background for this study? Response: Fluorescent viscosity sensors (also known as molecular rotors) are small molecules that emit light when excited by a laser and the lifetime of their emission is affected by viscosity around the molecule. Higher is the viscosity, longer is the duration of the emission. These molecules are especially useful for sensing viscosity in small biological objects, like a living cell. This is very tricky to do using other methods simply due to a very small size of a cell. Many scientists are interested in the viscosity inside the cell because it tells us how quickly various proteins and other molecules move and reactions in a cell occur. Knowing this information would help us to better understand how various diseases, such as diabetes or Alzheimers, change inner environment of affected cells.
Annals Internal Medicine, Author Interviews, Outcomes & Safety, Stanford / 08.10.2019

MedicalResearch.com Interview with: [caption id="attachment_51734" align="alignleft" width="200"]Daniel Tawfik, MD, MS Pediatric Critical Care Medicine Stanford University School of Medicine Dr. Tawfik[/caption] Daniel Tawfik, MD, MS Pediatric Critical Care Medicine Stanford University School of Medicine MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Professional burnout is very common among health care providers and is frequently associated with poor quality of care in the published literature. However, we know that reporting biases are common in many fields of literature, and these biases typically result in exaggerated effects being published relative to the true effect. Research on burnout and quality of care appears especially vulnerable, because many studies are not pre-specified or have several potential methods of analysis. If the studies or analyses with more impressive results are more likely to be published, this would result in a skewed picture of the relationship between burnout and quality of care.