Author Interviews, Brigham & Women's - Harvard, Cognitive Issues, JAMA, Supplements / 16.12.2019

MedicalResearch.com Interview with: Pieter A. Cohen, MD Department of Medicine, Cambridge Health Alliance Somerville, Massachusetts Harvard Medical School Boston, Massachusetts MedicalResearch.com: What is the background for this study? Response: There has been increasing interest in the use of over-the-counter supplements to help improve memory and cognitive function.  However, prior studies have suggested that these types of supplements might contain unapproved investigational drugs. (more…)
Author Interviews, Epilepsy, NEJM, NIH / 11.12.2019

MedicalResearch.com Interview with: Robin Conwit, M.D Program Director, Division of Clinical Research NIH: National Institute of Neurological Disorders and Stroke MedicalResearch.com: What is the background for this study? Response: Approximately one-third of patients with intractable status epilepticus do not respond to benzodiazepines, often the first line medications given in the emergency department, leaving doctors to decide among three commonly prescribed anti-convulsants. In this study all of the anti-convulsants were equally effective. The trial gives doctors a way to clear the air of arguments that one of these drugs works any better than the others, or that any one of them is a lot safer.  It gives doctors a reason to choose a dosing strategy in status epilepticus for levetiracetam, which has otherwise been controversial and non-standard.   (more…)
Author Interviews, Health Care Systems, University of Pittsburgh / 10.12.2019

MedicalResearch.com Interview with: 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. (more…)
Author Interviews, Brigham & Women's - Harvard, Global Health, JAMA, Pediatrics, Vaccine Studies / 09.12.2019

MedicalResearch.com Interview with: Emily Parker Hyle, M.D. Assistant Professor of Medicine Massachusetts General Hospital MedicalResearch.com: What is the background for this study? Response: We found that many children who were planning to travel internationally were eligible for MMR vaccination prior to departure but often did not receive it - especially if they were aged 6 months to 6 years. That is because most children do not routinely receive their first dose of MMR till 12-15 months of age and their second dose of MMR till 4-6 years of age. However, ACIP recommendations are different for children who are traveling internationally. The risk of being infected with measles is much higher outside of the US, so it is recommended that children older than 1 year have had 2 MMR vaccinations and that children 6-12 months receive 1 MMR vaccination prior to travel. MMR vaccination is a safe and effective way to greatly reduce the risk of measles infection.  (more…)
Annals Internal Medicine, Author Interviews, Health Care Systems, Hepatitis - Liver Disease, UC Davis / 04.12.2019

MedicalResearch.com Interview with: Barbara J Turner MD, MSED, MA, MACP Senior Advisor, Gehr Family Center for Health Systems Science Professor of Clinical Medicine Keck School of Medicine, USC  MedicalResearch.com: What is the background for this study? Response: Chronic hepatitis C (HCV) infection affects millions of persons in the United States but especially minorities and persons from low income communities. Current national guidelines recommend testing all baby boomers (born 1945 – 65) for HCV with the aim of ultimately curing those with chronic HCV infection with a short course of highly effective medication.  However implementation of these guidelines faces many hurdles in “safety net” practices serving vulnerable populations. (more…)
Author Interviews, Brigham & Women's - Harvard, Colon Cancer, JAMA, Omega-3 Fatty Acids / 26.11.2019

MedicalResearch.com Interview with: MINGYANG SONG, MD, ScD Assistant Professor, Epidemiology Harvard T.H. Chan School Of Public Health Assistant Professor of Medicine Clinical and Translational Epidemiology Unit Massachusetts General Hospital MedicalResearch.com: What is the background for this study? Response: Increasing data indicate that high intake of omega-3 fatty acid may reduce the risk of colorectal cancer. Since effects of nutritional factors on risk of cancer, a slow-developing disease, typically emerge only after several years, it is useful to study the effect of preventive agents on cancer precursors such as colorectal polyps. Colorectal polyps are small growths on the lining of the colon or rectum. Most polyps are harmless, but some can become cancerous. (more…)
Author Interviews, Brigham & Women's - Harvard, Cannabis, JAMA, Pediatrics / 26.11.2019

MedicalResearch.com Interview with: Bertha K. Madras PhD Director, Laboratory of Addiction Neurobiology Psychobiologist, Substance Use Disorders Division, Basic Neuroscience Division Professor of Psychobiology, Department of Psychiatry Harvard Medical School MedicalResearch.com: What is the background for this study? Parent use of marijuana is rising, and I wondered whether this could be associated with offspring use of specific substances and across several substances
  • Several fathers have confided in me that they used marijuana to bond with their sons. They became horrified after witnessing their sons progress to using other drugs, especially heroin.
  • In general, living with a parent using substances or having substance use disorders is an explicit risk for use of substances among young offspring. Yet, few studies have directly examined whether parental marijuana use elevates the risk for opioid misuse among adolescent and young adults living with parents.  Most importantly and to the best of our knowledge, none of the existing research  simultaneously explored frequency of  parental marijuana use and whether it related to adolescent and young adult offspring’s marijuana, tobacco, alcohol use, and opioid misuse.
(more…)
Abuse and Neglect, Electronic Records, Yale / 15.11.2019

MedicalResearch.com Interview with: Edward R. Melnick, MD, MHS Assistant Professor of Emergency Medicine Program Director, Yale-VA Clinical Informatics Fellowship Program Principal Investigator, EMBED Trial Network Yale School of Medicine New Haven, CT 06519  MedicalResearch.com: What is the background for this study? Response: We know that physicians are frustrated with their EHRs and that EHRs are a driver of burnout. This is the first study to measure these issues nationally. We included a standardized metric of technology from other industries (System Usability Scale, SUS; range 0-100) on the AMA’s 2017 physician burnout survey. This metric has been used in >1300 other studies so we can compare where the EHR’s usability is to other everyday technologies. We are also able to measure the relationship between physicians’ perception of their EHR’s usability and the likelihood they are burned out. (more…)
Author Interviews, Brigham & Women's - Harvard, Cost of Health Care, Rheumatology / 13.11.2019

MedicalResearch.com Interview with: Natalie McCormick, Ph.D. Post-Doctoral Research Fellow Clinical Epidemiology Program Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital Department of Medicine, Harvard Medical School Arthritis Research Canada  MedicalResearch.com: What is the background for this study? Response: Biologic disease-modifying anti-rheumatic drugs (bDMARDs) have improved the health and productivity of many people living with moderate-to-severe inflammatory rheumatic diseases. They are also among the highest-spend drugs in the USA, with substantial out-of-pocket costs that pose barriers to treatment initiation and adherence. To understand the drivers of ongoing bDMARD spending growth, and effective ways of containing costs, we analysed drug spending data for all bDMARD claims in Medicare Part D, Part B fee-for-service, and Medicaid over 2012 to 2016, isolating the impact of changes in drug prices from changes in utilisation.  (more…)
Author Interviews, Brigham & Women's - Harvard, Cost of Health Care, Dermatology, JAMA, Rheumatology / 09.11.2019

MedicalResearch.com Interview with: Emily S. Ruiz, MD, MPH Director, High-Risk Skin Cancer Clinic, Dana Farber/Brigham and Women’s Cancer Center Assistant Professor, Harvard Medical School, Dermatology Brigham And Women's Faulkner Hospital  MedicalResearch.com: What is the background for this study? Response: Innovation in oncology has led to increased development and market entry of anticancer drugs. For example, from 2009 to 2013, the US FDA approved 51 oral and systemic anticancer drugs for 63 indications. Prices for anticancer drugs have risen faster than inflation over time, especially for older drugs, and prices in the US have largely been set by market forces rather than novelty or efficacy. Understanding the evolving cancer economic landscape requires consideration of annual and cumulative rates of change for key metrics, such as total spending, drug cost per beneficiary, out-of-pocket cost, and utilization. This study sought to weigh the proportional impacts of rising drug costs and utilization on increased Medicare Part D spending for a cohort of oral anticancer drug utilized from 2013-2017.  (more…)
Author Interviews, JAMA, Sexual Health, STD, Technology, UCSD / 09.11.2019

MedicalResearch.com Interview with: Alicia Nobles, PhD, MS Research Fellow Department of Medicine UC San Diego  MedicalResearch.com: What is the background for this study? Response: Sexually transmitted diseases (STDs) are at record-high rates according to the Centers for Disease Control. Between STDs being highly stigmatized infections and people lacking access to health care, people may elect to turn to social media to connect with others. This is precisely why social media sites are so popular - because they do allow for people to talk with others rapidly. Reddit, a social media site that rivals Twitter with 330 million active users and is the 6th most visited website in the United States, is organized into online communities, many of which discuss health topics. We monitored all r/STD (www.reddit.com/r/STD/) posts, where users can find “anything and everything STD related,” from its inception in November 2010 through February 2019.   (more…)
Author Interviews, Beth Israel Deaconess, Emergency Care, Health Care Systems, JAMA / 05.11.2019

MedicalResearch.com Interview with: Laura Burke, MD, MPH Department of Emergency Medicine Beth Israel Deaconess Medical Center Boston, MA 02215Laura Burke, MD, MPH Department of Emergency Medicine Beth Israel Deaconess Medical Center Boston, MA 02215  MedicalResearch.com: What is the background for this study? Response: There has been a lot of attention to the growing intensity and costs of emergency care, but relatively little study of how outcomes have changed in recent years for patients using the ED. We examined 30-day mortality rates for traditional Medicare beneficiaries age 65 and older using the emergency department (ED) from 2009-2016 and also examined how their rates of hospitalization have changed over time.   (more…)
Author Interviews, Columbia, Infections / 30.10.2019

MedicalResearch.com Interview with: Barun Mathema PhD Assistant Professor,Epidemiology Mailman School of Public Health Columbia University MedicalResearch.com: What is the background for this study? Response: In 2005 a major outbreak of extensively drug-resistant tuberculosis (XDR-TB) causing over 90% mortality was reported in rural town of Tugela Ferry, KwaZulu-Natal, South Africa. The strain that caused the outbreak was resistant to all first and most second line antibiotics. This strain has since been recovered throughout the district and accounts for over 79% of all XDR-TB. We were interested in understanding the basic epidemiological and evolutionary forces that enabled this strain to proliferate. More simply, when and where this strain emerged, and how and why it became dominant.  (more…)
Author Interviews, Cannabis, JAMA, UCSD / 23.10.2019

MedicalResearch.com Interview with: John W. Ayers, PhD, MA Vice Chief of Innovation | Assoc. Professor Div. Infectious Disease & Global Public Health University of California San Diego MedicalResearch.com: What is the background for this study? Response: Touted as a “cure all,” researchers have documented unfounded claims that  cannabidiol (CBD) treats acne, anxiety, opioid addiction, pain, and menstrual problems. You can buy CBD droplets, massage oils, CBD gummies, or even ice cream. But public health leaders have been mostly silent on the subject because they lacked data that demonstrates just how popular CBD is and the future trajectory might be. To fill this data-gap we analyzed Google search queries that mentioned “CBD” or “cannabidiol” emerging from the United States from January 2004 through April 2019 and forecasted searches through December 2019. Rather than relying on self reports, where some might not be willing to discuss CBD openly, our strategy allowed us to directly observed millions of instances of people seeking out information or even shopping for CBD online. (more…)
Author Interviews, Education, University of Michigan / 18.10.2019

MedicalResearch.com Interview with: Chithra R. Perumalswami, MD, MSc Research Fellow Center for Bioethics & Social Sciences in Medicine University of Michigan  Reshma Jagsi, MD, DPhil Professor, Deputy Chair, and Residency Program Director Department of Radiation Oncology and Director Center for Bioethics and Social Sciences in Medicine University of Michigan MedicalResearch.com: What is the background for this study? Response: Burnout is a syndrome characterized by a sense of decreased personal accomplishment, emotional exhaustion, and depersonalization. It can lead to increased depression, illness, suicide, and absences from work. Physician burnout has reached epidemic proportions and physician-scientists are not immune from it. They are a critical part of the healthcare workforce who are responsible for translating innovative bench research to the bedside of patients, and in recent years have faced increasing pressures.  (more…)
Author Interviews, Dermatology, Nature, Stanford / 18.10.2019

MedicalResearch.com Interview with: Stephen J. Galli, MD Mary Hewitt Loveless, MD Professor Professor of Pathology and of Microbiology and Immunology Department of Pathology Stanford University School of Medicine Center for Clinical Sciences Research Stanford, CA and Nicolas Gaudenzio PhD Unité de Différenciation Epithéliale et Autoimmunité Rhumatoïde INSERM, Université de Toulouse Toulouse, France MedicalResearch.com: What is the background for this study? What are the main findings? Response: We took a lead from existing clinical data showing that patients with moderate to severe atopic dermatitis, an increasingly common disorder producing skin pathology, also have elevated levels of neuropeptides in their blood, particularly one neuropeptide, named “substance P”, whose level is correlated with disease severity. These patients also have high levels of mast cell-specific proteases in the blood, indicating that mast cells, which are innate immune cells present in the skin, and which can be activated when exposed to substance P, might play an essential role in modulating inflammatory and allergic processes. Based on these observations, our teams (Galli Lab at Stanford University, USA and Gaudenzio Lab at Inserm Toulouse, France) decided to focus on the possible interactions between sensory neurons, which are a source of substance P, and mast cells. The results of this work have now been published in the journal Nature Immunology. (more…)
Author Interviews, Fertility, Yale / 10.10.2019

MedicalResearch.com Interview with: Emma Xiaolu Zang, Ph.D. Assistant Professor Department of Sociology, Yale University New Haven, CT MedicalResearch.com: What is the background for this study? What are the main findings? Response: In the past decade, Generation Xers—individuals born between the early or mid-1960s and early 1980s—have outnumbered Baby Boomers (i.e. individuals born 1946-64) and currently make up a larger segment of the United States (US) labour force. There is a debate on whether college-educated women in Generation X have spawned a major shift in labor and fertility behaviors compared with their Baby Boomer counterparts because they are less ambitious in balancing family and career and tend to prioritize child-rearing. This study finds some support for this argument. Results reveal that Total Fertility Rates (TFRs) are increasing across cohorts for all educational groups and the increase is greatest for college-educated women. The increase in cohort TFR among college-educated women is being primarily driven by an increasing proportion of those with two children transitioning to a third birth.  (more…)
Annals Internal Medicine, Author Interviews, Outcomes & Safety, Stanford / 08.10.2019

MedicalResearch.com Interview with: 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. (more…)
Author Interviews, Critical Care - Intensive Care - ICUs, End of Life Care, Primary Care, Pulmonary Disease, University of Pennsylvania / 07.10.2019

MedicalResearch.com Interview with: Gary Weissman, MD, MSHP Assistant Professor of Medicine Pulmonary, Allergy, and Critical Care Division Palliative and Advanced Illness Research (PAIR) Center University of Pennsylvania Perelman School of Medicine  MedicalResearch.com: What is the background for this study? Response: There are millions of hospitalizations every year in the United States (US) that include a stay in an intensive care unit (ICU). Such ICU stays put strain on health system resources, may be unwanted by patients, and are costly to society. As the population of the US gets older and more medically complex, some have argued that we need more ICU beds and a larger ICU workforce to keep pace. We hypothesized that some proportion of these ICU admissions could be prevented with early and appropriate outpatient care. Such a strategy would alleviate some of the strains and costs associated with ICU stays. If an appreciable proportion of ICU stays were preventable in this way, it would strengthen support for an alternative population-health based framework instead of further investments in the ICU delivery infrastructure.  (more…)
Author Interviews, Dermatology, Environmental Risks, General Medicine, JAMA, Melanoma, Stanford / 07.10.2019

MedicalResearch.com Interview with: Eleni Linos MD MPH DrPH Professor of Dermatology and Epidemiology Stanford University  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: We know that tanning beds are harmful: people who use tanning beds are more likely to get skin cancer. Sexual minority men are much more likely to use tanning beds and also more likely to get skin cancer. In a separate study we discovered that one reason sexual minority men use tanning beds is if it is convenient: e.g. if close to home, cheap, and easy. (https://onlinelibrary.wiley.com/doi/abs/10.1111/bjd.17684). Recent research showed that tobacco retailers cluster in LGB neighborhoods: https://sph.unc.edu/sph-news/more-tobacco-retailers-in-lgbt-neighborhoods-may-explain-smoking-disparities/. This made us wonder if tanning salons also cluster in neighborhoods with more gay men.  (more…)
Author Interviews, HIV, Infections, STD, UCSD / 05.10.2019

MedicalResearch.com Interview with: Martin Hoenigl, MD Assistant Professor UCSD MedicalResearch.com: What is the background for this study? Response: Technology has changed the way men-who-have-sex-with-men (MSM) seek sex. Over 60% of MSM in the US use the internet and/or smartphone-based geospatial networking apps to find sex partners. Grindr™, a sophisticated geosocial networking app, is the most frequently used dating app among MSM in the United States. Previous research has shown that MSM who use Grindr™ have a greater frequency risky sexual behavior, and more sexual partners, but little is known about the association between Grindr™ use and prevention behavior such as the use of HIV pre-exposure prophylaxis (PrEP). We evaluated risk behavior, PrEP use, and Grindr™ usage among MSM receiving community-based HIV and bacterial sexually transmitted infection (STI) screening in central San Diego. Participants who tested negative for HIV and who were not on PrEP were offered immediate PrEP.  (more…)
Antibiotic Resistance, Author Interviews, Cancer Research, Genetic Research, Journal Clinical Oncology, University Texas / 03.10.2019

MedicalResearch.com Interview with: Fangjian Guo, MD, PhD Department of Obstetrics and Gynecology Center for Interdisciplinary Research in Women’s Health University of Texas Medical Branch Galveston TX  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: The identification of BRCA1/BRCA2 pathogenic variants in women susceptible to breast or ovarian cancer in the 1990s created an opportunity for targeted, individualized cancer prevention. BRCA testing in young women before cancer onset enables early detection of those with increased cancer risk and creates an opportunity to offer life-saving prophylactic procedures and medication. We used insurance claims data to assess the use of BRCA testing in unaffected young women <40 years of age between 2006 and 2017 and found that BRCA testing among cancer-free women under 40 has more than doubled in recent years. However, only about 25% of all BRCA testing done in 2017 was performed in unaffected young women under 40. (more…)
Author Interviews, Brigham & Women's - Harvard, Cost of Health Care, Diabetes, JAMA / 02.10.2019

MedicalResearch.com Interview with: Andrew Sumarsono, MD UT Southwestern Medical Center MedicalResearch.com: What is the background for this study?   Response: There are currently 12 types of medications used to treat type 2 diabetes. With approximately 30 million adults living with diabetes in the United States, the rising cost of insulin has raised concerns about the affordability of diabetes care. We evaluated trends in total spending and number of prescriptions of all diabetes therapies among Medicare Part D beneficiaries between 2012 and 2017. (more…)
Alcohol, Alzheimer's - Dementia, Author Interviews, Brigham & Women's - Harvard, Cognitive Issues / 30.09.2019

MedicalResearch.com Interview with: Manja Koch Dr. oec. troph. (Ph.D. equivalent) Research Associate Department of Nutrition Harvard T.H. Chan School of Public Health Majken K. Jensen, PhD Associate Professor of Nutrition Harvard T.H. Chan School of Public HealthMajken K. Jensen, PhD Associate Professor of Nutrition Harvard T.H. Chan School of Public Health MedicalResearch.com: What is the background for this study? Response: Alzheimer’s disease and other dementias are highly prevalent conditions. According to the Alzheimer’s Association, 50 million people are currently living with Alzheimer’s disease or other dementias worldwide. Given the lack of a cure or even disease-modifying therapies for most dementias, the identification of risk factors or factors that prevent or delay the onset of dementia remains of paramount concern. Alcohol is a globally consumed beverage and light-to-moderate alcohol consumption, defined as up to one drink per day for women and up to two drinks per day for men, tends to be associated with lower risk of cardiovascular disease, a major risk factor for dementia. However, the effects of light-to-moderate alcohol intake on the brain are less clear.  (more…)
Allergies, Author Interviews, Brigham & Women's - Harvard, CMAJ, Dermatology, Heart Disease / 30.09.2019

MedicalResearch.com Interview with: Hyon K. Choi, MD, DrPH Professor of Medicine, Harvard Medical School Director, Gout and Crystal Arthropathy Center Director, Clinical Epidemiology and Health Outcomes Division of Rheumatology, Allergy, and Immunology Department of Medicine, Massachusetts General Hospital MedicalResearch.com: What is the background for this study? What are the main findings? Response: Allopurinol is a very common and generally safe medication prescribed to lower serum urate levels, most commonly to patients with gout. However, it can be associated with very rare but serious cutaneous adverse events which includes Stevens-Johnson syndrome and toxic epidermal necrolysis. Prior studies have demonstrated several risk factors for these types of cutaneous adverse events, including presence of chronic kidney disease, older age, female sex, higher initial dose of allopurinol, and the HLA-B*5801 allele, which is more commonly found in Asians and Black patients. A prior study in Taiwan suggested that heart disease (ischemic heart disease and heart failure) may also be associated with an increased risk of hospitalizations for these cutaneous adverse reactions related to allopurinol. Thus, our goal was to investigate this association using a general population cohort from Canada. Using Population Data BC, we found that heart disease was in fact independently associated with an increased risk of hospitalization for these cutaneous adverse reactions. (more…)
Author Interviews, BMC, Cost of Health Care, Diabetes, Yale / 28.09.2019

MedicalResearch.com Interview with: Phoebe Tran Doctoral Student Department of Chronic Disease Epidemiology Yale School of MedicinePhoebe Tran Doctoral Student Department of Chronic Disease Epidemiology Yale School of Medicine  MedicalResearch.com: What is the background for this study? Response: As the prevalence of diabetes risk factors such as obesity, high blood pressure, high cholesterol, and physical inactivity are considerably higher in US individuals residing in rural areas compared to their urban counterparts, rural residents face increased risk of developing diabetes. Diabetes screening is a useful tool that can be used to identify people with newly developed type 2 diabetes and offer them early treatment. In this study, we examined whether there are differences in diabetes screening levels between rural and urban areas across the US using nationally representative survey data from 2011, 2013, 2015, and 2017.   (more…)
Author Interviews, BMJ, Brigham & Women's - Harvard, Nutrition, Weight Research / 24.09.2019

MedicalResearch.com Interview with: Deirdre K Tobias, ScD Associate Epidemiologist, Brigham and Women’s Hospital Assistant Professor, Harvard Medical School nuts-nutrition-weight-obesityMedicalResearch.com: What is the background for this study? What types of nuts are helpful? Peanuts included?  Response: We did not have the granularity in our study to evaluate too many individual nut types, and did not perform head-to-head comparisons between types of nuts. All seemed to be better for long-term weight control compared with the snacks like potato chips that we know are not great for us on a regular basis. (more…)
Alzheimer's - Dementia, Author Interviews, Cognitive Issues, Duke, Neurology / 24.09.2019

MedicalResearch.com Interview with: Juan Helen Zhou, PhD, on behalf of the co-authors Associate Professor and Principal Investigator Neuroscience and Behavioural Disorders (NBD) Programme Duke-NUS Medical School, SingaporeJuan Helen Zhou, PhD, on behalf of the co-authors Associate Professor and Principal Investigator Neuroscience and Behavioural Disorders (NBD) Programme Duke-NUS Medical School, Singapore  MedicalResearch.com: What is the background for this study? Response: Alzheimer’s disease and cerebrovascular disease are among the leading disorders affecting the elderly, with up to 50 per cent of dementia patients showing co-occurrence of both disorders. It is therefore of great interest to understand the influence of co-occurring Alzheimer’s disease and cerebrovascular disease pathologies on brain changes, and examine if such changes are able to track early differential disease progression. Past cross-sectional studies have suggested that Alzheimer's disease and cerebrovascular disease pathologies contribute independently to brain functional and structural changes, and cognitive decline. Our study sought to demonstrate the independent contributions of both pathologies to brain functional networks in a longitudinal cohort of mild cognitive impairment patients, often regarded as early stage of the disease. (more…)
Author Interviews, CT Scanning, JAMA, Lung Cancer, UCSF / 23.09.2019

MedicalResearch.com Interview with: Joshua Demb, PhD, MPH Postdoctoral Scholar, Moores Cancer Center University of California, San Diego Health Science Research Specialist Veterans Affairs San Diego Healthcare System MedicalResearch.com: What is the background for this study? Response: Our study leveraged radiation dose data from 72 facilities performing CT scans around the United States to learn more about the radiation dose used for lung cancer screening scans, as well as possible institutional predictors that might be associated with higher dose.  Currently, the American College of Radiology has recommendations for how these low-dose lung cancer screening scans should be performed. However, it is unclear how much adherence there currently is to these guidelines. Our findings indicated that there is wide variation in the distribution of radiation doses for low-dose lung cancer screening scans both within- and between facilities in our sample—in some cases this variation led to doses higher than the ACR recommendations.   (more…)