Medical Research Journals

12 Apr

Posted at 16:03h in Author Interviews, Epilepsy, Genetic Research, JAMA, Pediatrics
MedicalResearch.com Interview with: [caption id="attachment_48481" align="alignleft" width="200"]Dr. Ahmad Abou Tayoun, PhDClinical Molecular GeneticistDirector of the Genetics LaboratoryAl Jalila Children’sUnited Arab Emirates Dr. Abou Tayoun[/caption] Dr. Ahmad Abou Tayoun, PhD Clinical Molecular Geneticist Director of the Genetics Laboratory Al Jalila Children’s United Arab Emirates MedicalResearch.com: What is the background for this study?   Response: In this study, we provide data in favor of using an exome-based testing approach, where parental samples can be readily accessible, for early onset epilepsy patients. The exome test includes all coding genes in the human genome. Although we perform exome sequencing on those patients, we demonstrate that a first tier analysis should include targeted interpretation of ~100 genes strongly associated with the disease. This analysis provides diagnoses in ~11% of the patients. Follow up parental testing on a limited number of patients (n=15) that had inconclusive results, revealed de novo (new mutations) variant status, leading to upgrade to positive reports in 7 patients and adding ~5% to the overall diagnostic yield.

12 Apr

Posted at 10:54h in Asthma, Author Interviews, Environmental Risks, Lancet, Pediatrics
MedicalResearch.com Interview with: Ploy Pattanun Achakulwisut, PhD Postdoctoral Scientist in Climate change, Air pollution, and Public Health Milken Institute School of Public Health (Anenberg Group The George Washington University, D.C  MedicalResearch.com: What is the background for this study? Response: Dozens of epidemiological studies have found positive and generally statistically significant associations between long-term exposure to traffic-related air pollution (TRAP) and asthma development in children. The evidence is most robust for nitrogen dioxide (NO2), a major component of and commonly used surrogate for the complex TRAP mixture. Recent reviews conducted by the US Environmental Protection Agency and Health Canada concluded that there is “likely a causal relationship” between long-term NO2 exposure and pediatric asthma development. Using NO2 as a proxy for TRAP, our study provides the first global estimate of the number of new asthma cases among children that are attributable to traffic pollution, using fine spatial-scale global datasets that can resolve within-city and near-roadway NO2 exposures.

11 Apr

Posted at 15:56h in Author Interviews, Cancer Research, JAMA, UT Southwestern
MedicalResearch.com Interview with: [caption id="attachment_48478" align="alignleft" width="191"]Nina Niu Sanford, M.D. Assistant ProfessorUT Southwestern Department of Radiation OncologyDallas TX 75390 Dr. Niu Sanford[/caption] Nina Niu Sanford, M.D. Assistant Professor UT Southwestern Department of Radiation Oncology Dallas TX 75390 MedicalResearch.com: What is the background for this study? What are the main findings?  Response: There has been increasing interest in use of complementary and alternative medicine in the oncology population – both in terms of its potential efficacy and harms. The main finding of this study is that approximately 1/3 of cancer patients and survivors self-reported using complementary or alternative medicine over the past year, the most common being herbal supplements. Of these patients, approximately 1/3 did not disclose to their physicians that they were doing so.

11 Apr

Posted at 15:50h in Author Interviews, BMJ, Heart Disease, Karolinski Institute
MedicalResearch.com Interview with: [caption id="attachment_42513" align="alignleft" width="150"]Huan Song Associated Department of Medical Epidemiology and Biostatistics Karolinska Institutet Huan Song[/caption] Huan Song, PhD Center of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavík, Iceland Department of Medical Epidemiology and Biostatistics Karolinska Institutet, Stockholm, Sweden MedicalResearch.com: What is the background for this study?   Response: Cardiovascular disease (CVD) presents a group of diseases that are common and sometimes fatal in general population. The possible role of stress-related disorders in the development of CVD has been reported. However, the main body of the preceding evidence was derived from male samples (veterans or active-duty military personnel) focusing mainly on posttraumatic stress disorder (PTSD) or self-reported PTSD symptoms. Data on the role of stress-related disorders in CVD in women were, until now, limited. Although incomplete control for familial factors and co-occurring psychiatric disorder, as well as the sample size restriction, limit the solid inference on this association, especially for subtypes of CVD.

11 Apr

Posted at 00:16h in Author Interviews, BMJ, Health Care Systems, University of Pennsylvania
MedicalResearch.com Interview with: [caption id="attachment_48484" align="alignleft" width="148"]Genevieve P. Kanter, PhDAssistant Professor (Research) of Medicine, Medical Ethics and Health PolicyUniversity of Pennsylvania Perelman School of MedicinePhiladelphia, PA  19104-6021 Dr. Kanter[/caption] Genevieve P. Kanter, PhD Assistant Professor (Research) of Medicine Medical Ethics and Health Policy University of Pennsylvania Perelman School of Medicine Philadelphia, PA  MedicalResearch.com: What is the background for this study?   Response: In 2010, the US Congress—concerned about the adverse influence of financial relationships between physicians and drug and device firms, and the lack of transparency surrounding these relationships—enacted the Physician Payments Sunshine Act. This legislation required pharmaceutical and medical device firms to report, for public reporting through the Open Payments program, the payments that these firms make to physicians. We sought to evaluate the effect of Open Payments' public disclosure of industry payments information on US adults' awareness of the issue of industry payments and knowledge of whether their physicians' had received industry payments. 

10 Apr

Posted at 23:31h in Author Interviews, Heart Disease, JACC
MedicalResearch.com Interview with: Susana Ravassa PhD Program of Cardiovascular Diseases, CIMA University of Navarra, and IdiSNA Navarra Institute for Health Research Pamplona, Spain  MedicalResearch.com: What is the background for this study? Response: Atrial fibrillation (AF) is an evolving epidemic responsible for substantial morbidity, mortality and health-care expenditure. In particular, when AF and heart failure (HF) occur in combination, clinical evolution is particularly poor. Left atrial (LA) myocardial interstitial fibrosis (MIF) is the main structural lesion in AF and considered as the main factor responsible for the perpetuation of this pathology. In addition, it is known that MIF is associated with a lower effectiveness of the treatment of AF by pulmonary vein isolation with catheter ablation. Therefore, the identification of biomarkers related to MIF, as an affordable and minimally invasive approach, is of great interest to detect patients at risk of AF, as well as to monitor their response to the LA ablation therapy. We had previously demonstrated that the deleterious impact of MIF in the heart is due to alterations in both the quality (i.e., extent of cross-linking among collagen fibrils and type of collagen fibers that determine their rigidity and resistance to degradation [collagen cross-linking or CCL]) and the quantity (i.e., extent of collagen fibers that occupy the myocardial tissue [collagen deposition or CD]) of fibrotic tissue. We have shown that certain circulating biomarkers related to collagen type I metabolism are associated with CCL and CD. On the one hand, the serum carboxy-terminal propeptide of procollagen type I (PICP), released during the conversion of procollagen type I into fibril-forming mature collagen type I, is directly correlated with myocardial CD. On the other hand, the ratio of serum carboxy-terminal telopeptide of collagen type I to serum matrix metalloproteinase-1 (serum CITP:MMP-1 ratio) is inversely correlated with myocardial CCL, as the higher is the cross-linking among collagen type I fibrils the lower will be the cleavage of CITP by MMP-1 during the process of degradation of the fiber. Interestingly, we have previously reported that the combination of these biomarkers identifies patients with heart failure presenting with a complex pattern of MIF characterized by both increased CCL and CD (CCL+CD+) showing a higher risk of adverse clinical evolution as compared with heart failure  patients without this combination of biomarkers. As both increased CCL and CD have been found in the left atrial myocardium in patients with AF, we designed this investigation to explore whether the CCL+CD+ combination of biomarkers is associated with AF.

10 Apr

Posted at 21:41h in Alzheimer's - Dementia, Author Interviews, Merck, NEJM
MedicalResearch.com Interview with: Michael F. Egan, MDVice President,  NeuroscienceGlobal Clinical DevelopmentMerck Research LaboratoriesNorth Wales, PAMichael F. Egan, MD Vice President,  Neuroscience Global Clinical Development Merck Research Laboratories North Wales, PA  MedicalResearch.com: What is the background for this study?   Response: Alzheimer’s disease (AD) appears to be due to the gradual accumulation of amyloid over many years (the “amyloid hypothesis”). At some point, it is thought that amyloid triggers abnormalities in tau, which then forms deposits within neurons and leads to progressive neurodegeneration. Amyloid is made up of  a small, sticky peptide, Abeta, which is produced when the enzyme BACE cleaves a large protein called APP.  In our trial, we tested whether a potent BACE inhibitor, verubecestat, could slow disease progression in subjects with early AD (or prodromal AD) by blocking formation of Abeta.  A previous trial in subjects with dementia due to AD failed to find evidence of efficacy. One possible reason for this failure is that subjects had too much amyloid in their brain already.

10 Apr

Posted at 02:49h in Author Interviews, Depression, Exercise - Fitness, JAMA, Parkinson's
MedicalResearch.com Interview with: Dr. Jojo Kwok  R.N., BN(Hons), MPH, Ph.D. School of Nursing, Li Ka Shing Faculty of Medicine The University of Hong Kong MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Before the study, we knew that mind-body exercises such as yoga and stretching improves the physical health of patients with Parkinson’s disease (PD), however the benefits to their mental health was not known. This study concludes that mindfulness yoga alleviates psychological distress, improves spiritual well-being and quality of life, not to mention motor symptoms and mobility. When it comes to managing the stress and symptoms of Parkinson Disease, what is exciting, is that yoga has now been proven to be a better strategy than just stretching. Yoga draws together body, mind and spirit through mindful practice of 1) yoga posture, 2) breathing and 3) meditation. These form the three core components of our Mindfulness Yoga Program. Mindfulness is non-judgemental awareness of the present moment - of one’s physical sensations and thoughts, be they positive or negative. By adopting a mind-body approach, patients are much better positioned to reframe their illness journey than through physical training alone. By learning to relate non-judgmentally to their physical symptoms and emotions, they develop new coping skills that cultivate openness, acceptance and resilience to these symptoms. They feel better. 

09 Apr

Posted at 18:44h in Author Interviews, Cancer Research, JAMA, Vitamin D
MedicalResearch.com Interview with: Mitsuyoshi Urashima MD, PhD, MPH Professor of Molecular Epidemiology Jikei University School of Medicine Tokyo, JAPAN MedicalResearch.com: What is the background for this study?   Response: Serum levels of vitamin D, increase in response to exposure to sunlight, a vitamin D-rich diet, or vitamin D supplementation. In 1989, the risk of colon cancer was estimated to be 70% lower in people with serum vitamin D levels ≥ 20 ng/mL, compared with those < 20 ng/mL. In a cohort study, higher vitamin D levels were associated with lower total cancer incidence and lower total cancer mortality, particularly digestive system cancer mortality. However, because of the studies’ observational nature, whether lower levels of vitamin D is merely a precursor to relapse and death or causally related to shorter survival cannot be determined. To clarify this, a randomized, double-blind, placebo-controlled trial using vitamin D supplement was performed in patients with digestive tract cancer from esophagus to rectum; this is the first trial designed to evaluate the effect of vitamin D on survival of these patients. 

09 Apr

Posted at 01:15h in Author Interviews, JAMA, Race/Ethnic Diversity, Surgical Research, Transplantation, Yale
MedicalResearch.com Interview with: [caption id="attachment_48457" align="alignleft" width="135"]Sanjay Kulkarni, MD MHCM FACSAssociate Professor of Surgery & MedicineSurgical Director – Kidney Transplant ProgramMedical Director – Center for Living Organ DonorsScientific Director – Yale Transplant ResearchNew Haven, CT 06410 Dr. Kulkarni[/caption] Sanjay Kulkarni, MD MHCM FACS Associate Professor of Surgery & Medicine Surgical Director – Kidney Transplant Program Medical Director – Center for Living Organ Donors Scientific Director – Yale Transplant Research New Haven, CT 06410 MedicalResearch.com: What is the background for this study? Response: The kidney allocation system changed in December of 2014. The aim of the new system was to increase transplant in patients who were highly sensitized (difficult matches based on reactive antibodies) and to improve access to underserved populations.

08 Apr

Posted at 18:13h in Author Interviews, End of Life Care, Health Care Systems, JAMA
MedicalResearch.com Interview with: [caption id="attachment_48423" align="alignleft" width="143"]Cindy L. Cain, PhDAssistant ProfessorDepartment of SociologyUniversity of Alabama at BirminghamBirmingham, AL 35233  Dr. Cain[/caption] Cindy L. Cain, PhD Assistant Professor Department of Sociology University of Alabama at Birmingham Birmingham, AL 35233   MedicalResearch.com: What is the background for this study? What are the main findings? Response: The End of Life Option Act permits terminally ill Californians to request a prescription for medications that would hasten death, providing they meet all requirements of the law and follow the steps outlined by their health care provider. However, the law also allows health care providers and organizations to opt out of participating. Until now, we did not know how common it was for entire health care organizations to opt out. In this study, we found that 61% of the surveyed hospitals prohibited physician participation in the End of Life Option Act. Thirty-nine percent of hospitals did allow participation in the law; these participating hospitals were less likely to be religiously affiliated and more likely to be nonprofit.

08 Apr

Posted at 18:07h in ADHD, Author Interviews, JAMA, OBGYNE, Pediatrics, Pharmacology
MedicalResearch.com Interview with: [caption id="attachment_48399" align="alignleft" width="128"]Dr. Angela Lupattelli, PhDSchool of PharmacyUniversity of Oslo Dr. Lupattelli[/caption] Dr. Angela Lupattelli, PhD School of Pharmacy University of Oslo MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Between 1-4% of pregnant women take at least once a benzodiazepine and/or a z-hypnotic medication during the course of gestation. These medications are generally used intermittently in pregnancy, mainly for treatment of anxiety disorders and sleeping problems, which are not uncommon conditions among pregnant women. However, data regarding the safety of benzodiazepine and/or a z-hypnotic in pregnancy on child longer-term development are sparse. For instance, studies on child motor skills are only available up to toddler age, and little is known in relation to other child developmental domains. So, there is an urgent need to better understand whether prenatal use of benzodiazepine and/or a z-hypnotic medication may pose detrimental longer-term child risks.

08 Apr

Posted at 18:02h in Author Interviews, JAMA, Kidney Disease
MedicalResearch.com Interview with: [caption id="attachment_48348" align="alignleft" width="120"]Matthew T James MD, PhDAssistant ProfessorUniversity of Calgary Dr. James[/caption] Matthew T James MD, PhD Assistant Professor University of Calgary  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: The Acute Kidney Disease and Disorders (AKD) criteria from the KDIGO Acute Kidney Injury guidelines identified many patients who do not meet existing criteria for Chronic Kidney Disease or Acute Kidney Injury (AKI), and the majority of AKD events occured in the community rather than hospital setting. This study characterized the frequency and outcome for patients with AKD (without  AKI) as well as AKD with CKD from among over 1.1 million adults  residing in Alberta Canada who received  kidney function testing and were followed for up to 8 years.

05 Apr

Posted at 21:58h in Author Interviews, ENT, JAMA, Pain Research, Pediatrics, Surgical Research
MedicalResearch.com Interview with: [caption id="attachment_48406" align="alignleft" width="133"]Gillian R. Diercks, MD, MPHInstructor in Otolaryngology, Harvard Medical SchoolDepartment of OtolaryngologyMassachusetts Eye and Ear InfirmaryBoston, Massachusetts Dr. Diercks[/caption] Gillian R. Diercks, MD, MPH Instructor in Otolaryngology, Harvard Medical School Department of Otolaryngology Massachusetts Eye and Ear Infirmary Boston, Massachusetts  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Pediatric tonsillectomy is a commonly performed procedure, representing the second most common ambulatory surgery performed on children in the United States, with over half a million children undergoing the surgery annually.  A major concern for surgeons, patients, and their families is the issue of postoperative pain control as pain can last up to 10-14 days after surgery, be quite severe, and result in readmission to the hospital or ED visits for medications and dehydration. In young children and children with sleep apnea we cannot safely administer narcotic pain medications at home.  This leaves limited options for pain control, including acetaminophen and ibuprofen.  However, there are concerns that ibuprofen could potentially increase bleeding risk after surgery because of its effects on platelet function in the blood.  At baseline, the risk of postoperative hemorrhage within the first two weeks after tonsillectomy is around 4.5%, with about 1-1.5% of children requiring a return to the operating room to control severe bleeding.  Our study set out to show that the risk of severe postoperative bleeding when ibuprofen is given for 9 days after tonsillectomy was not increased compared with the bleeding risk when acetaminophen was administered instead. Our study could not conclude that the risk of bleeding is no different when ibuprofen is used, and was suggestive that the bleeding risk may actually be higher.

05 Apr

Posted at 13:28h in Author Interviews, BMJ, Cancer Research, HPV, OBGYNE, Sexual Health, Vaccine Studies
MedicalResearch.com Interview with: [caption id="attachment_48387" align="alignleft" width="112"]Dr. Tim PalmerHonorary Senior LecturerDepartment of PathologyUniversity of EdinburghEdinburgh, UK Dr. Palmer[/caption] Dr. Tim Palmer Honorary Senior Lecturer Department of Pathology University of Edinburgh Edinburgh, UK  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: High risk HPV infection is the obligate cause of between 70 and 90% of cervical cancers, depending upon the country. The development of vaccines against the commonest hr-HPV types has the potential to reduce the burden of cervical cancer, especially in low and middle income countries that cannot afford screening programmes. Cervical cancer affects predominantly women in their 30s and is a major public health issue even in countries with well-established screening programmes. Scotland has had a successful immunisation programme since 2008, and women immunised at age 12 to13 have been screened since 2015. We can therefore demonstrate the effect of hr-HPV immunisation on the pre-invasive stages of cervical cancer.

05 Apr

Posted at 12:39h in Alcohol, Author Interviews, Genetic Research, Nature, University of Pennsylvania
MedicalResearch.com Interview with: [caption id="attachment_48375" align="alignleft" width="160"]Henry R. Kranzler, MDProfessor of PsychiatryPerelman School of MedicineUniversity of Pennsylvania Dr. Kranzler[/caption] Henry R. Kranzler, MD Professor of Psychiatry Perelman School of Medicine University of Pennsylvania MedicalResearch.com: What is the background for this study? What are the main findings? Response: Alcohol consumption and alcohol use disorder (AUD) are moderately heritable traits.  To date, genome-wide association studies (GWAS) have not examined these traits in the same sample, which limits an assessment of the extent to which genetic variation is unique to one or the other or shared. This GWAS examined a large sample (nearly 275,000 individuals) from the U.S. Veterans Affairs Million Veteran Program (MVP) for whom data on both alcohol consumption and alcohol use disorder diagnoses were available from an electronic health record.  We identified 18 genetic variants that were significantly associated with either alcohol consumption, AUD, or both. Five of the variants were associated with both traits, eight with consumption only, and five with alcohol use disorder only. 

03 Apr

Posted at 16:49h in Author Interviews, Diabetes, Genetic Research, JAMA, Mental Health Research, Schizophrenia
MedicalResearch.com Interview with: [caption id="attachment_48354" align="alignleft" width="99"]Prof Sabine Bahn MD PhD MRCPsych FRSBCambridge Centre for Neuropsychiatric Research Prof. Bahn[/caption] Prof Sabine Bahn MD PhD MRCPsych FRSB Cambridge Centre for Neuropsychiatric Research [caption id="attachment_48355" align="alignleft" width="99"]Jakub Tomasik, PhDDepartment of Chemical Engineering and Biotechnology Dr. Tomasik[/caption] Jakub Tomasik, PhD Department of Chemical Engineering and Biotechnology University of Cambridge   MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Schizophrenia patients are at increased risk of impaired glucose metabolism, yet the comorbidity between the two conditions cannot be fully explained by known risk factors such as obesity, smoking, stress or antipsychotic medication. Previous family and genome-wide studies have suggested that the co-occurrence between schizophrenia and impaired glucose metabolism might be due to shared genetic factors, as exemplified by increased risk of diabetes in first-degree relatives of schizophrenia patients, but the biological mechanisms underlying this association remain unknown. We examined the association between insulin resistance, schizophrenia polygenic risk and response to treatment in 58 drug-naive schizophrenia patients and 58 matched healthy individuals while controlling for a range of demographic (age, gender, body mass index), lifestyle (smoking, alcohol and cannabis use) and clinical (psychopathology scores, treatment drug) factors. We found that insulin resistance, a key feature contributing to the development of type 2 diabetes, significantly correlated with schizophrenia polygenic risk score in patients, with higher genetic risk of schizophrenia associated with increased insulin resistance. Furthermore, we found that patients with higher insulin resistance were more likely to switch medication during the first year of treatment, which implies lower clinical response. 

03 Apr

Posted at 16:11h in Allergies, Author Interviews, Dermatology, Heart Disease, JAMA
MedicalResearch.com Interview with: [caption id="attachment_48345" align="alignleft" width="133"]Amber Reck Atwater, M.D.Dermatology Residency Program DirectorAssociate Professor of DermatologyDirector, Contact Dermatitis ClinicDuke Dermatology Dr. Reck Atwater[/caption] Amber Reck Atwater, M.D. Dermatology Residency Program Director Associate Professor of Dermatology Director, Contact Dermatitis Clinic Duke Dermatology  MedicalResearch.com: What is the background for this study? What are the main findings? Response: We completed an evaluation of our Duke Dermatology patients who underwent patch testing for possible allergy to their cardiac devices - pacemakers and defibrillators. From March 1, 2012 to September 15, 2017 we saw 11 patients with suspected allergy to their devices.  Concern for allergy, skin eruption, skin symptoms, and concern for infection were common. 73% of patients had erythema at their implant scars; pruritus and pain were also noted.  Six of our patients had relevant reactions, and the most common allergies were metals, silicone and rubber accelerators. 

02 Apr

Posted at 21:59h in Author Interviews, Cost of Health Care, General Medicine, Hospital Readmissions, JAMA, Race/Ethnic Diversity
MedicalResearch.com Interview with: [caption id="attachment_48340" align="alignleft" width="142"]Teryl K. Nuckols, MDVice Chair, Clinical ResearchDirector, Division of General Internal MedicineCedars-Sinai Medical Center  Dr. Nuckols[/caption] Teryl K. Nuckols, MD Vice Chair, Clinical Research Director, Division of General Internal Medicine Cedars-Sinai Medical Center  MedicalResearch.com: What is the background for this study?   Response: Healthcare policymakers have long worried that value-based payment programs unfairly penalize hospitals treating many African-American patients, which could worsen health outcomes for this group. For example, policy experts have suspected that the Medicare Hospital Readmission Reduction Program unevenly punishes institutions caring for more vulnerable populations, including racial minorities. They've also feared that hospitals might be incentivized to not give patients the care they need to avoid readmissions. The study Investigators wanted to determine whether death rates following discharges increased among African-American and white patients 65 years and older after the Medicare Hospital Readmission Reduction Program started.

02 Apr

Posted at 18:46h in Allergies, Author Interviews, Immunotherapy, Lancet
MedicalResearch.com Interview with: [caption id="attachment_48331" align="alignleft" width="200"]Arnon Elizur MDDirector, The Institute of Allergy, Immunology & Pediatric PulmonologyYitzhak Shamir Medical CenterZerifin, Israel Dr. Elizur[/caption] Arnon Elizur MD Director, The Institute of Allergy, Immunology & Pediatric Pulmonology Yitzhak Shamir Medical Center Zerifin, Israel MedicalResearch.com: What is the background for this study?   Response: Tree nuts are among the most common food allergies and are a major cause of fatal and near fatal reactions. Patients with tree nut allergy are often allergic to several nuts, further increasing the risk of accidental exposures, dietary limitations, and the emotional burden and anxiety in affected patients. In the past 10 years, oral immunotherapy (OIT) has shown promise as a treatment modality for milk, egg and peanut allergies. However, limited data exists on oral immunotherapy for tree nuts and the treatment is complicated by the high prevalence of co-allergy to several nuts.

02 Apr

Posted at 13:50h in AHA Journals, Author Interviews, Heart Disease, Karolinski Institute
MedicalResearch.com Interview with: [caption id="attachment_48328" align="alignleft" width="120"]Hands only CPR AHA image Hands only CPR
AHA image[/caption] Gabriel Riva, Graduate Student Department of Medicine, Solna (MedS), Karolinka Institute MedicalResearch.com: What is the background for this study? What are the main findings? Response: During the last decade there has been a gradual adoption of compression-only CPR, as an option to conventional CPR with chest compressions and rescue breaths, in international CPR guidelines. The simplified technique is recommended for bystanders who are untrained and in "telephone assisted CPR". One of the reasons was the assumption that more people would actually do CPR with the simplified technique.  We could in this nationwide study running over 3 guideline periods demonstrate a 6-fold higher proportion of patients receiving compression-only CPR and a concomitant almost doubled rate of CPR before emergency medical services arrival over time. This very large increase in simplified CPR was surprising to us, especially considering there has never been any public campaigns promoting compression-only CPR in Sweden and training still include compressions and ventilations.  New first aid certified students will go through these updates to ensure the best possible assistance for emergencies.

02 Apr

Posted at 13:29h in Author Interviews, Clots - Coagulation, NEJM, Thromboembolism
MedicalResearch.com Interview with: [caption id="attachment_48324" align="alignleft" width="128"]Yaseen M. Arabi, M.DIntensive Care DepartmentMinistry of National Guard Health AffairsICU 1425, Riyadh, Saudi Arabia Dr. Arabi[/caption] Yaseen M. Arabi, M.D Intensive Care Department Ministry of National Guard Health Affairs Riyadh, Saudi Arabia  MedicalResearch.com: What is the background for this study? What are the main findings? Response: Venous thromboembolism, including deep vein thrombosis and pulmonary embolism, is a complication of critical illness. Studies have demonstrated that despite pharmacologic thromboprophylaxis with unfractionated heparin or low-molecular weight heparin, 5-20% of critically ill patients develop deep vein thrombosis (DVT). The PREVENT trial evaluated whether adjunctive intermittent pneumatic compression reduces incident proximal lower limb DVT as detected on twice-weekly lower limb ultrasonography in critically ill patients receiving pharmacologic thromboprophylaxis with unfractionated heparin or low-molecular-weight heparin. The trial was conducted in 20 sites in Saudi Arabia, Canada, Australia and India and included 2003 patients. The trial found no difference in the primary end point of proximal leg DVT. The addition of intermittent pneumatic compression to pharmacologic thromboprophylaxis did not result in a lower incidence of pulmonary embolism or a composite outcome of venous thromboembolism or death from any cause at 28 days when compared to pharmacologic thromboprophylaxis alone.

02 Apr

Posted at 12:50h in Author Interviews, Diabetes, Genetic Research, Heart Disease, Nature
MedicalResearch.com Interview with: [caption id="attachment_48320" align="alignleft" width="150"]Eirini MarouliWilliam Harvey Research InstituteBarts and The London School of Medicine and Dentistry, Queen Mary University of London, London Eirini Marouli[/caption] Eirini Marouli William Harvey Research Institute Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London MedicalResearch.com: What is the background for this study?   Response: Epidemiological studies suggest that shorter stature is associated with increased risk of coronary artery disease (CAD) or type 2 diabetes (T2D). It is not clear though whether these associations are causal or there are other factors mediating these effects. When randomized trials are inappropriate or impossible, we can use Mendelian Randomisation as a good alternative to study the causal relationship between a trait and a disease. Here, we examined over 800 places in the human genome known to be associated with adult height and evaluated how genetically predicted height can affect the risk of CAD or T2D. Furthermore, we evaluated the role of several risk factors including, cholesterol, triglycerides, blood pressure, body mass index, fat percentage, socio-economic parameters including education and income as well as lung function. Lung function was assessed by spirometry measures including FEV1: forced expiratory volume in 1 second, FVC: forced vital capacity.

02 Apr

Posted at 01:31h in Author Interviews, Heart Disease, JAMA, Lipids
MedicalResearch.com Interview with: [caption id="attachment_48314" align="alignleft" width="160"]Victor Wenze Zhong, Ph.D.Postdoctoral fellowDepartment of Preventive MedicineFeinberg School of MedicineNorthwestern University 680 N Lake Shore Dr, Suite 1400Chicago, IL 60611 Dr. Zhong[/caption] Victor Wenze Zhong, Ph.D. Postdoctoral fellow Department of Preventive Medicine Feinberg School of Medicine Northwestern University Chicago, IL 60611  MedicalResearch.com: What is the background for this study? Response: Dietary cholesterol is a common nutrient in human diet. Eggs, specially egg yolks, are the single richest source of dietary cholesterol among all commonly consumed foods. The associations between dietary cholesterol consumption and cardiovascular disease and mortality remain controversial despite decades of research. Eating less than 300 mg of dietary cholesterol per day was the guideline recommendation before 2015. However, the most recent 2015-2020 Dietary Guidelines for Americans no longer include a daily consumption limit for dietary cholesterol and recommend weekly egg consumption as part of the healthy US-style eating pattern. Whether these recommendations are appropriate have been intensely debated.

01 Apr

Posted at 23:30h in Author Interviews, JAMA, Social Issues
MedicalResearch.com Interview with: [caption id="attachment_48278" align="alignleft" width="200"]Rajan Sonik, PhD JD MPHResearch ScientistTucker-Seeley Research LabLeonard Davis School of GerontologyPostdoctoral Research FellowLeonard D. Schaeffer Center for Health Policy and EconomicsLeonard Davis School of GerontologyUniversity of Southern CaliforniaLos Angeles, CA 90089-3333 Dr. Sonik[/caption] Rajan Sonik, PhD JD MPH Research Scientist Tucker-Seeley Research Lab Leonard Davis School of Gerontology Postdoctoral Research Fellow Leonard D. Schaeffer Center for Health Policy and Economics Leonard Davis School of Gerontology University of Southern California Los Angeles, CA 90089-3333 MedicalResearch.com: What is the background for this study? What are the main findings? Response: Not everyone who is eligible for public benefits like Supplemental Security Income (SSI) tries to receive them. One distinguishing factor is that those who apply for benefits disproportionately experience shocks (e.g., divorce, job loss, health problems) and sharp increases in material hardships (e.g., food insecurity, housing insecurity) shortly before applying. Typically, these increases in hardships are then partially—but not fully—alleviated by receipt of the public benefits. Given strong associations between these hardships and poor health outcomes, we wanted to examine whether health status might fluctuate before and after the receipt of public benefits as well. We examined SSI in particular given its focus on individuals with disabilities, keeping in mind the particular health vulnerabilities experienced by this population. In line with patterns previously observed for material hardships, we found in a nationally representative sample that the health status of eventual SSI recipients worsened significantly in the period prior to program entry. After enrollment began, the decline in health status stopped but was not fully reversed. In the paper, we discuss why these findings were more likely to be driven by changes in material hardship levels rather than changes in disability status.

01 Apr

Posted at 23:25h in Author Interviews, Cancer Research, FDA, JAMA
MedicalResearch.com Interview with: [caption id="attachment_48283" align="alignleft" width="158"]Emerson Chen, MDChief Fellow, Hematology-Oncology, PGY-6Oregon Health & Science University Dr. Chen[/caption] Emerson Chen, MD Chief Fellow, Hematology-Oncology, PGY-6 Oregon Health & Science University MedicalResearch.com: What is the background for this study? What are the main findings? Response: Many cancer drugs are approved annually giving the appearance of innovation; however, some drugs may have been approved because of a lower bar. Use of lesser endpoints like response rate (how tumor shrinks) and progression-free survival (how tumor has delayed growth) have been proposed to speed trials when compared against traditional endpoints like overall survival (how long patients might live). Using published trials that led to cancer drug approval from 2006 to 2017, we estimated how long it would take to get each of these three endpoints across all cancer drugs and indications to see how much time we could save by using these weaker but faster endpoints. We see that many trials using overall survival used less time than anticipated, and many trials using response rate or progression-free survival actually took quite a bit of time.  In part that is due to researchers needing to document the duration of the response. But, whatever the reason, the time to get each of the three endpoints is actually more similar than different, and we estimate that our current use of  these faster endpoints are saving us only 11 months compared to using only overall survival.

01 Apr

Posted at 16:46h in Author Interviews, Biomarkers, Lancet, OBGYNE, Pediatrics
MedicalResearch.com Interview with: [caption id="attachment_48296" align="alignleft" width="200"]MedicalResearch.com Interview with:Catalin S. Buhimschi MD, MMS, MBAProfessor of Obstetrics and GynecologyDivision of Maternal Fetal MedicineDirector of ObstetricsDepartment of Obstetrics and GynecologyChicago, IL, 60612 Dr. Buhimschi[/caption] Catalin S. Buhimschi MD, MMS, MBA Professor of Obstetrics and Gynecology Division of Maternal Fetal Medicine Director of Obstetrics Department of Obstetrics and Gynecology Chicago, IL, 60612 MedicalResearch.com: What is the background for this study? What are the main findings? Response: In 2008, the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Maternal–Fetal Medicine Units Network published the results of a randomized controlled trial of magnesium sulfate for the prevention of cerebral palsy (CP). The results of this trial suggested that fetal exposure to magnesium sulfate before anticipated early preterm delivery did not reduce the combined risk of moderate to severe cerebral palsy or death, although the rate of cerebral palsy was reduced among survivors. As such, the search for a biomarker or a therapeutic solution to prevent CP had to continue. We are grateful to the NICHD for giving us access to the umbilical cord blood samples retrieved at the time of birth for the infants enrolled, who were also followed for 2 years postnatally. We discovered that fetus’s ability to switch-on haptoglobin (Hp) expression in response to inflammation was associated with reduction of intra-ventricular hemorrhage (IVH) and/or death, and cerebral palsy and/or death. Fetuses unable to mount such a response in-utero had an increased risk of adverse outcomes.

31 Mar

Posted at 19:41h in Author Interviews, JAMA, OBGYNE, Pediatrics
MedicalResearch.com Interview with: [caption id="attachment_48281" align="alignleft" width="200"]Abhay K Lodha Department of PediatricsAlberta Health Services  Dr. Lodha[/caption] Abhay K Lodha MD, DM, MSc Department of Pediatrics Alberta Health Services   MedicalResearch.com: What is the background for this study? Response: There is no physiological rationale for clamping the umbilical cord immediately after birth. In moderate (32+0 weeks-33+6 weeks) and late preterm infants (34+0 to 36+6), delayed cord clamping reduces the need for blood transfusions, leads to circulatory stability and improves blood pressure. However, the information on the association of delayed cord clamping with outcomes for extremely low gestational age neonates (22-28 weeks of gestation) is limited.

31 Mar

Posted at 19:08h in Author Interviews, JAMA, OBGYNE, Pediatrics
MedicalResearch.com Interview with: [caption id="attachment_48261" align="alignleft" width="128"]Valerie Seror, PhD French Institute of Health and Medical Research Inserm  Dr. Seror[/caption] Valerie Seror, PhD French Institute of Health and Medical Research Inserm MedicalResearch.com: What is the background for this study? Response: In the highly sensitive context of prenatal diagnosis where autonomous and informed decision-making is of crucial issue, the present study is a companion study to a prospective clinical trial [ClinicalTrials.gov Identifier: NCT02127515] aiming at comparing clinical benefits involved by invasive vs. non-invasive testing in women at high risk of Down syndrome following routine combined screening. Our study (involving 2,436 consecutive high-risk pregnant women following combined screening for Down syndrome) confirmed that attitudes towards invasive testing are notably guided by risk aversion to invasive testing-related fetal loss whereas it showed that attitudes towards non-invasive testing are notably guided by aversion to the ambiguity generated by results restricted to the only targeted abnormalities.

29 Mar

Posted at 18:47h in Author Interviews, Breast Cancer, Exercise - Fitness, Heart Disease, JAMA, UCLA
MedicalResearch.com Interview with: [caption id="attachment_48187" align="alignleft" width="179"]Christina M. Dieli-Conwright, PhD, MPH, FACSM, CSCSAssistant Professor of ResearchDirector, Integrative Center for Oncology Research in ExerciseDivision of Biokinesiology & Physical Therapy, Ostrow School of DentistryDepartment of Medicine, Keck School of MedicineUniversity of Southern CaliforniaLos Angeles, CA 90033 Dr. Dieli-Conwright[/caption] Christina M. Dieli-Conwright, PhD, MPH, FACSM, CSCS Assistant Professor of Research Director, Integrative Center for Oncology Research in Exercise Division of Biokinesiology & Physical Therapy, Ostrow School of Dentistry Department of Medicine, Keck School of Medicine University of Southern California Los Angeles, CA 90033  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: This study was designed to assess the effects of an aerobic and resistance exercise on metabolic dysregulation in sedentary, obese breast cancer survivors, however we further examined the effects on cardiovascular disease risk measured by the Framingham Risk Score, reported here. Our findings indicated that exercise, indeed, reduces the risk of cardiovascular disease in this population.