Author Interviews, Geriatrics, Infections / 28.10.2015

MedicalResearch.com Interview with: Christian Hammer, PhD École Polytechnique Fédérale de Lausanne Swiss Institute of Bioinformatics Lausanne, Switzerland Clinical Neuroscience Max Planck Institute of Experimental Medicine Göttingen, Germany Medical Research: What is the background for this study? What are the main findings? Dr. Hammer: The immune response after viral infection or vaccination varies considerably from person to person, which is important because these differences can account for clinical outcome or vaccine effectiveness. It has been shown before that part of this variability is heritable, indicating the possibility that differences in our genes might be involved. To test this, we performed a genome-wide association study in more than 2,300 individuals, using high-performance computing to analyze whether differences in the abundance of antibodies against 14 common viruses are caused by variable sites in our genome. We looked at about 6 million of these variants and found that a region on chromosome 6 that harbors many genes involved in immune regulation showed highly significant associations with immune response to influenza A virus, Epstein-Barr virus (EBV), JC polyomavirus, and Merkel Cell polyomavirus. The genetic variants result in structural differences in proteins whose job it is to present fragments of pathogens that have been taken up by cells to the immune system. Interestingly, a given variant can lead to an increased immune response to one virus, e.g. influenza A, and at the same time to a decreased immune response to another, e.g. EBV, which is likely due to an altered ability of the protein to bind and present specific viruses, depending on the genetic background. (more…)
Author Interviews, Geriatrics, Mineral Metabolism / 22.10.2015

MedicalResearch.com Interview with: Andrew M Hinson, MD UAMS Postdoctoral Research Fellow Thyroid/Parathyroid Diseases & Surgery and Donald L. Bodenner, MD, PhD Department of Otolaryngology-Head and Neck Surgery Department of Geriatrics University of Arkansas for Medical Sciences, Little Rock, Arkansas. Medical Research: What is the background for this study? Response: Proton pump inhibitors (PPIs)​ are widely prescribed, highly effective and generally safe for the treatment of acid-related gastrointestinal disorders. However, there are risks that may be elevated for some older people when PPIs are used in high doses over long periods of time. There is also evidence that fracture risk may even be higher in older patients who are being treated with concurrent oral bisphosphonate medications, which are used to prevent fractures in patients with osteoporosis. While the mechanism remains unknown, PPIs may increase fracture risk by decreasing gastrointestinal absorption (e.g., calcium, vitamin B12, and/or bisphosphonates) or by inhibiting a major mechanism by which bisphosphonates work. To learn more about this process, we studied patients 60 years or older with normal renal function and vitamin D levels to see how PPIs (with and without concurrent bisphosphonate administration) impacted measurements in parathyroid hormone (PTH) and calcium. Medical Research: What are the main findings? Response: We found that chronic PPI exposure in elderly adults is associated with mild secondary hyperparathyroidism regardless of concurrent oral blood pressure administration. Secondary hyperparathyroidism refers to the excessive secretion of PTH by the parathyroid glands in response to low blood calcium levels. This is often associated with renal failure; however, all of our patients had normal renal function. (more…)
Author Interviews, Geriatrics, PLoS / 21.10.2015

MedicalResearch.com Interview with: Prof. Dr. med. Andreas Stuck Chefarzt Geriatrie Geriatrische Universitätsklinik Inselspital, Bern Medical Research: What is the background for this study? Prof. Stuck: The number of older persons increases worldwide. Unfortunately, many older persons cannot enjoy the benefits of increased life expectancy because they develop disability or die prematurely. In the search for an effective preventive method, we developed a novel intervention consisting of health risk assessment combined with individualized health counseling, and tested whether this novel intervention actually works. In a trial among more than 2000 older persons, we allocated persons randomly to a group receiving and a group not receiving this intervention, and compared long-term outcomes between these groups. Medical Research: What are the main findings? Prof. Stuck: We found that older participants who received the novel intervention, improved their risk factor profile, and subsequently, had a significantly improved survival as compared to the participants who had not received the intervention. From earlier studies it was known that health risk assessment can improve short term health risks in older people, but our study is the first to explore long-term health outcomes. (more…)
Author Interviews, Brigham & Women's - Harvard, Frailty, Geriatrics, Infections / 12.10.2015

Farrin A. Manian, MD, MPH, FACP, FIDSA, FSHEA Inpatient Clinician Educator, Department of Medicine, Massachusetts General Hospital Visiting Associate Professor, Harvard Medical School, Boston, MA 02114MedicalResearch.com Interview with: Farrin A. Manian, MD, MPH, FACP, FIDSA, FSHEA Inpatient Clinician Educator, Department of Medicine, Massachusetts General Hospital Visiting Associate Professor, Harvard Medical School Boston, MA 02114 Medical Research: What is the background for this study? What are the main findings? Dr. Manian:  Falls are a leading cause of injury and death, afflicting about one-third of adults over 65 years of age annually.  Although there are many potential causes for falls, infections have received very little attention, with previous published reports primarily revolving around institutionalized elderly with dementia and urinary tract infection. We found that the spectrum of patients at risk for falls precipitated by infections goes far beyond the institutionalized elderly with dementia and urinary tract infection.  In fact, the majority of our patients fell at home and did not have a diagnosis of dementia.  In addition, besides urinary tract infections which accounted for 44.1% of cases, bloodstream (40.0%) and lower respiratory tract infections (23.0%) were also frequently represented.  Although the mean age of our patients was 76 years, 18% were younger than 65 years.  We also found that the signs and symptoms of these infections at the time of the presentation for the fall were often non-specific (e.g. weakness or mental status changes) or absent, with only 44% of patients meeting the criteria for systemic inflammatory response syndrome and only 20% having fever or abnormal temperature possibly related in part to advanced age.  These factors may make it difficult for the patient, family members and healthcare providers to readily consider infections contributing to the fall.  In fact a coexisting systemic infection was not initially suspected by providing clinicians in 40% of our patients and 31% of those who were later diagnosed with a bloodstream infection. (more…)
Author Interviews, Geriatrics, Hearing Loss, JAMA / 25.09.2015

Kevin J. Contrera, MPH MD Candidate Johns Hopkins School of MedicineMedicalResearch.com Interview with: Kevin J. Contrera, MPH MD Candidate Johns Hopkins School of Medicine Medical Research: What is the background for this study? What are the main findings? Response: Hearing impairment is common in older adults. The prevalence of clinically significant hearing loss doubles with every decade of life, affecting two-thirds of adults 70 years of age or older. Hearing loss has been shown to be associated with various negative cognitive, mental, and physical health outcomes. In a nationally representative sample of 1,666 adults aged 70 years or older, moderate or greater hearing impairment was associated with a 54% increased risk of mortality. This was after we statistically took into account factors that could influence this association. Essentially, the worse the patient's hearing loss, the greater the risk of death. (more…)
Author Interviews, Clots - Coagulation, CT Scanning, Emergency Care, Geriatrics / 24.09.2015

MedicalResearch.com Interview with: Dr Lim Beng Leong MBBS, MRCS (A&E), FAMS Jurong Health Services Emergency Department, Singapore  Medical Research: What is the background for this study? What are the main findings? Dr. Leong: It is common in the emergency department to see patients with warfarin who suffer a minor head injury (HI) with GCS >13. It is standard practice according to international guidelines to perform a plain CT scan of the head. What is contentious in the literature is the subsequent management of those patients with a normal initial CT scan. Practice is heterogeneous and includes a mandatory second CT scan at 24 hours mark or observation and repeat CT scan at the discretion of the attending doctor. We have found in our study that the "observe and repeat CT scan for symptomatic cases" approach only was safe as abnormal second CT scans were rare (1 in 295 cases). We traced the patients' course 2 weeks post discharge and none of the patients were re-admitted for reasons of delayed intra-cranial hemorrhage (ICH). However, the cohort of patients consist largely of geriatric patients with falls. More than 50% of these patients were hospitalized for more than 3 days; the longest of 2-3 weeks. They were likely to have various reasons that required longer hospitalizations apart from observation for delayed ICH, such as assessing for risk, etc. (more…)
Author Interviews, Cost of Health Care, Flu - Influenza, Geriatrics, Lancet, Vaccine Studies / 20.09.2015

Dr Ayman Chit PhD Sanofi Pasteur Swiftwater, PA 18370MedicalResearch.com Interview with: Dr Ayman Chit PhD Sanofi Pasteur Swiftwater, PA 18370 Medical Research: What is the background for this study? What are the main findings? Dr. Chit: Our analysis used data from a large-scale, multi-center efficacy trial, in which a higher-dose split-virus inactivated influenza vaccine (IIV-HD, Fluzone® High-Dose vaccine, Sanofi Pasteur) was compared to a standard-dose split-virus inactivated influenza vaccine (IIV-SD, Fluzone vaccine, Sanofi Pasteur) in persons 65 years of age and older.  These data were supplemented with US healthcare cost data. In the efficacy trial, a total of 31,989 adults 65 years of age and older were randomly assigned in a 1:1 ratio to receive either IIV-HD or IIV-SD and followed for six to eight months post-vaccination for the occurrence of influenza, serious adverse events, and medical encounters. Healthcare utilization (HCU) data were captured for all participants through a surveillance program that covered each influenza season, including the following events occurring within 30 days after any respiratory illness: use of prescription and non-prescription medications (limited to antipyretics/analgesics/non-steroidal anti-inflammatory drugs, antivirals and antibiotics), emergency room visits, non-routine or urgent care visits, and hospitalizations. In addition, all hospitalizations were captured for participants for the entire duration of the study. The primary results from the efficacy trial were published in The New England Journal of Medicine, which reported that IIV-HD was 24.2% (95% confidence interval [CI], 9.7% to 36.5%) more effective in preventing laboratory-confirmed influenza-like illness compared to IIV-SD.1 In the current supplemental analysis of the trial, we used US healthcare cost data to evaluate economic impacts of using IIV-HD compared to IIV-SD within the efficacy trial participants. In this analysis, total healthcare payer costs (the combined costs of study vaccine, prescription drugs, emergency room visits, non-routine and urgent-care visits, and hospital admissions) were about $116 less per person.
  1. DiazGranados et al, NEJM, 2014;14;371(7):635-45 
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Author Interviews, Frailty, Geriatrics, Nutrition / 07.09.2015

MedicalResearch.com Interview with: Dr. Alberto Lana Department of Medicine, Preventive Medicine and Public Health Area School of Medicine and Health Sciences University of Oviedo, Oviedo, Spain Medical Research: What is the background for this study? What are the main findings? Dr. Lana: Healthy diets are associated with lower risk of frailty among elderly, but we thought that knowing the role of particular foods is essential to establish prevention measures. Dairy products are substantial sources of proteins, vitamins, and minerals, especially for older adults. Thus, dairy products could theoretically reduce the incidence of frailty. But high milk consumption could also have deleterious effects because it adds saturated fatty acids to diet and could increases oxidative stress. So the advice regarding dairy consumption remains unclear. Medical Research: What should clinicians and patients take away from your report? Dr. Lana: According to our results, clinicians should recommend replacing whole-fat products with low-fat ones. Generally, patients should be educated to perform always healthy dietetic choices. (more…)
Author Interviews, Blood Pressure - Hypertension, Cognitive Issues, Geriatrics / 05.09.2015

Christine McGarrigle PhD Research Director The Irish Longitudinal Study on Ageing (TILDA) Lincoln Gate Trinity College Dublin Dublin MedicalResearch.com Interview with: Christine McGarrigle PhD Research Director The Irish Longitudinal Study on Ageing (TILDA) Lincoln Gate Trinity College Dublin Dublin   Medical Research: What is the background for this study? What are the main findings? Dr. McGarrigle: Mild cognitive impairment (MCI) is the intermediate state between healthy ageing and dementia and is a stage at which intervention could be effective in reducing conversion to dementia. Neurocardiovascular instability is an age-related dysregulation of the blood pressure systems manifesting as exaggerated blood pressure variability and orthostatic hypotension (OH). Previous evidence has shown that autonomic dysfunction, blood pressure variation and hypotension are associated with mild cognitive impairment. Our study found that systolic blood pressure variation was associated with cognitive decline. Mild cognitive impairment participants were more likely to have had OH and more prolonged OH compared to cognitively normal controls. Mild cognitive impairment participants with impaired orthostatic blood pressure responses were twice more likely to convert to dementia than mild cognitive impairment participants without the impaired response over a three year follow-up period. (more…)
Author Interviews, Geriatrics, Telemedicine, University of Michigan / 03.09.2015

Dr. Rashid Bashshur PhD Director of Telemedicine University of Michigan Health System Emeritus Professor of Health Management and Policy University of Michigan, School of Public HealthMedicalResearch.com Interview with: Dr. Rashid Bashshur PhD Director of Telemedicine University of Michigan Health System Emeritus Professor of Health Management and Policy University of Michigan, School of Public Health  Medical Research: What is the background for this study? What are the main findings? Dr. Bashshur: The impetus for this research derives from the confluence of several factors, including the increasing incidence and prevalence of chronic diseases, their associated morbidity and  mortality and their high cost. The search for solutions has taken center stage in health policy.  Patients must be engaged in  in managing their health and health care, and they must assume greater responsibility for adopting and maintaining a healthy life style to reduce their dependence on the health system and to help themselves in maintaining an optimal level of health.  The  telemedicine intervention promises to  address all these issues and concerns, while also providing ongoing monitoring and guidance for patients who suffer from serious chronic illness. The preponderance of the evidence from robust scientific studies points to the beneficial effects of the telemedicine intervention (through telemonitoring and patient engagement) in terms of reduction in use of service (including hospital admissions/readmissions, length of hospital stay, and emergency department visits) as well as improved health outcomes.  The single exception was reported in a study among frail  elderly patients with co-morbidities who did not benefit from the telemedicine intervention. There is an ever-growing and complex body of empirical evidence that attests to the potential of telemedicine for addressing the triad problems of limited access to care, uneven distribution of quality across communities, and cost inflation.  Research demonstrates the effectiveness of the telemedicine intervention in addressing all three problems, especially when patients are engaged in managing their personal health and healthcare.  The enabling technology can be used to promote healthy life styles, informed decision making, and prudent use of health resources. Unintended consequences of delaying mortality for older adults may also increase the use of resources, especially in the long run, and society must decide on the ultimate values it chooses to promote. (more…)
Author Interviews, Blood Pressure - Hypertension, Cognitive Issues, Geriatrics, JAMA / 25.08.2015

MedicalResearch.com Interview with: Justine Moonen and Jessica Foster-Dingley On behalf of the principal investigators: Roos van der Mast, Ton de Craen, Wouter de Ruijter and Jeroen van der Grond Department of Psychiatry, Leiden University Medical Center Leiden, the Netherlands Medical Research: What is the background for this study? What are the main findings? Response: Mid-life high blood pressure is a well-known risk factor for cerebrovascular pathology and, consequently, cognitive decline in old age. However, the effect of late-life blood pressure on cognition is less clear. It has been suggested that at old age not a higher, but a lower blood pressure increases the risk of cognitive decline as well as neuropsychiatric symptoms. Older persons are at risk for impaired regulation of their cerebral blood flow, and stringently lowering their blood pressure may compromise cerebral blood flow, and thereby cognitive function. Therefore, we hypothesized that increasing blood pressure by discontinuation of antihypertensive treatment would improve cognitive and psychological functioning. We performed a community-based randomized controlled trial in a total of 385 participants aged ≥75 years with mild cognitive deficits and without serious cardiovascular disease, and who were all receiving antihypertensive treatment. Persons were randomized to continuation or discontinuation of antihypertensive treatment. Contradictory to our expectation, we found that discontinuation of antihypertensive treatment in older persons did not improve cognitive functioning at 16-week follow-up. (more…)
Author Interviews, Geriatrics, JAMA, Statins / 24.08.2015

Michael Johansen MD MS Assistant Professor - Clinical Dept of Family Medicine The Ohio State UniversityMedicalResearch.com Interview with: Michael Johansen MD MS Assistant Professor - Clinical Dept of Family Medicine The Ohio State University Medical Research: What is the background for this study? What are the main findings? Dr. Johansen: -Over the last 15 years there has been increasing emphasis placed on the use of statins to decrease people's risk of heart attacks and strokes. Individuals with known heart disease are recommended to be on statins. However, there is no convincing evidence that elderly individuals (>79 years of age) without heart disease benefit from statins. Therefore, we investigated how use patterns of statins has changed over the last ~14 years. We identified a dramatic increase in statin use in the very elderly during the time of the study. As of 2012, around 1/3 of very elderly individuals without heart disease took a statin during that year. (more…)
Author Interviews, Cognitive Issues, Geriatrics, UCSF, Weight Research / 13.08.2015

Meera Sheffrin MD Geriatrics Fellow Division of Geriatrics | Department of Medicine San Francisco VA Medical Center University of California, San Francisco MedicalResearch.com Interview with: Meera Sheffrin MD Geriatrics Fellow Division of Geriatrics | Department of Medicine San Francisco VA Medical Center University of California, San Francisco Medical Research: What is the background for this study? What are the main findings? Dr. Sheffrin: The main drug treatments for dementia are a class of medications called cholinesterase inhibitors. They have only modest effects on cognition and function in most patients, but since they are one of the few available treatments for dementia and thus very commonly prescribed. However,they are known to cause GI side effects (nausea, vomiting, diarrhea, and anorexia) in many patients when first started. It is plausible they could also caust weight loss, espeically considering they cause nausea and anorexia. However, the data on weight loss from randomized controlled trials is very limited and inconclusive, so we did a very large observational study in a real-world of the VA national healthcare system who were newly started on these medications, to see if they were associated with weight loss. We found that patient with dementia started on cholinesterase inhibitors had a substantially higher risk of clinically significant weight loss over a 12-month period compared to matched controls. 1,188 patients started on cholinesterase inhibitors were matched to 2,189 similar patients who were started on other new chronic medications. The primary outcome was time to a 10-pound weight loss over a 12-month period, as this represents a degree of loss that would be clinically meaningful – not only noticed by a clinician but would perhaps prompt further action in considering the causes of the weight loss and medical work-up. We found that starting cholinesterase inhibitors was associated with a 24% greater risk of developing weight loss. Overall, 29% of patients started on cholinesterase inhibitors experienced a weight loss of 10 pounds or more, compared with 23% of the control group. This corresponds to a number needed to harm of 21 over 1 year; meaning only 21 patients need to be treated with a cholinesterase inhibitor over the course of a year for one patient to experience a 10 pound weight loss. (more…)
Author Interviews, Geriatrics, Heart Disease, Surgical Research / 27.07.2015

Yigal Abramowitz, MD Cedars-Sinai Heart InstituteMedicalResearch.com Interview with: Yigal Abramowitz, MD Cedars-Sinai Heart Institute Medical Research: What is the background for this study? Dr. Abramowitz: The number of elderly patients with severe symptomatic aortic stenosis (AS) that require aortic valve replacement has been significantly increasing in recent years. However, a decade ago, third of the patients were not referred to surgery, in particular because of advanced age, and /or multiple comorbidities. TAVR has emerged as a treatment option for elderly inoperable or high-risk surgical patients with severe aortic stenosis. There is scarce evidence on the feasibility and safety of TAVR in very old patients. Medical Research: What are the main findings? Dr. Abramowitz: We compared 136 patients that were at least 90 years old at the time of TAVR (mean age: 92.4years) to 598 younger patients (mean age: 79.7years). Device success was excellent in both groups (96% for both). All-cause mortality at 30-days and 1-year was 2.9% and 12.5% vs. 2.8% and 12.3%  in patients aged ≥ 90 and ˂ 90, respectively. All major complication rates were similar between groups. (more…)
Aging, Author Interviews, Cost of Health Care, Electronic Records, Geriatrics / 27.07.2015

MedicalResearch.com Interview with: Nisha C. Hazra MSc Department of Primary Care and Public Health Sciences, King's College London, London, UK Medical Research: What is the background for this study? What are the main findings? Response: Our study was motivated by limited evidence about the health status of very old people, the fastest growing group of the UK population with significant implications for future NHS health-care costs. Our findings indicated an increasing number of people reaching the age of 100 years, with the increase being higher among women comparing to men (a ratio of 4 to 1). Another interesting finding was that men reaching 100 years tended to be healthier than their female counterparts. In particular, women were more likely to present multiple chronic diseases compared to men and tended to be more frail, experiencing more falls, fractures, incontinence and hearing/visual impairments. (more…)
Author Interviews, Blood Pressure - Hypertension, Geriatrics, Kidney Disease / 24.05.2015

Enayet Karim Chowdhury, Research Fellow Department of Epidemiology and Preventive Medicine School of Public Health and Preventive Medicine Monash University The Alfred Centre Melbourne VIC 3004MedicalResearch.com Interview with: Enayet Karim Chowdhury, Research Fellow Department of Epidemiology and Preventive Medicine School of Public Health and Preventive Medicine Monash University The Alfred Centre Melbourne VIC 3004 Medical Research: What is the background for this study? What are the main findings? Dr. Chowdhury: The study was conducted on elderly treated hypertensive population. Australia is currently undergoing a demographic transition towards having increasing number of older people. As age advances quality of life becomes increasingly affected by a variety of chronic diseases including poor renal function. Therefore early detection and management of the risk associated with these chronic diseases is crucial. Managing hypertension, even though challenging, can significantly improve quality of life of a person by reducing risk of having cardiovascular events. The main finding of the study is that in elderly treated hypertensive people, a rapid decline in renal function was associated with a higher risk of having cardiovascular events irrespective of having chronic kidney disease or not. (more…)
Aging, Author Interviews, BMJ, Disability Research, End of Life Care, Geriatrics, Yale / 21.05.2015

Thomas M. Gill, M.D Humana Foundation Professor of Medicine (Geriatrics) Professor of Epidemiology (Chronic Diseases) and of Investigative Medicine Director Yale Program on Aging and Yale Center for Disability and Disabling Disorders Director, Yale Training Program in Geriatric Clinical Epidemiology and Aging-Related ResearchMedicalResearch.com Interview with: Thomas M. Gill, M.D Humana Foundation Professor of Medicine (Geriatrics) Professor of Epidemiology  and of Investigative Medicine Director Yale Program on Aging and Yale Center for Disability and Disabling Disorders Director, Yale Training Program in Geriatric Clinical Epidemiology and Aging-Related Research Medical Research: What is the background for this study? What are the main findings?h Response: Understanding the disabling process at the end of life is essential for informed decision-making among older persons, their families, and their physicians. We know from prior research that the course of disability at the end of life does not follow a predictable pattern for most older persons.  This raises the question about what is driving the development and progression of disability at the end of life. We identified six distinct trajectories of disability in the last year of life, ranging from the least disabled to most disabled.  We found that the course of disability in the last year of life closely tracked the monthly prevalence of hospitalization for each of the six trajectories. (more…)
Author Interviews, BMJ, Geriatrics, Lipids, Statins, Stroke / 19.05.2015

Christophe Tzourio, MD, PhD Professor of Epidemiology University of BordeauxMedicalResearch.com Interview with: Christophe Tzourio, MD, PhD Professor of Epidemiology University of Bordeaux Medical Research: What is the background for this study? What are the main findings? Dr. Tzourio: The efficacy of lipid-lowering drugs (LLD) - which include statins and fibrates - to reduce the risk of coronary events and stroke has already been demonstrated in randomized trials. However, these trials were performed on highly selected patients, usually of middle-age (50-70 yrs) and with a history of cardiovascular disease or a high vascular profile. There is therefore currently no indication on the benefit of these drugs in elderly individuals of the general population without a past-history of cardiovascular disease and guidelines do not recommend the use of lipid-lowering drugs in elderly individuals without clinical atherosclerotic disease. As there are not randomized trials in non-selected individuals in this age category, observational population-based cohorts are therefore the only alternative to study the impact of lipid-lowering drugs on the risk of cardiovascular diseases in the elderly. We analyzed data from the Three-City study, a community-based cohort in 7484 elderly individuals (mean age 74 years), followed-up during 9 years, without known history of vascular disease at baseline. We observed a one third decrease in the risk of stroke in lipid lowering drug users (hazard ratio 0.66, 0.49 to 0.90) compared with non-users. Reduction in stroke risk was similar for the statin and fibrate groups. No protective effect was seen on the risk of coronary heart disease. (more…)
Aging, Author Interviews, Exercise - Fitness, Geriatrics, Lifestyle & Health, Nutrition / 01.05.2015

Yunhwan Lee, MD, DrPH Director, Institute on Aging Professor of Preventive Medicine & Public Health Ajou University School of Medicine Suwon, South KoreaMedicalResearch.com Interview with: Yunhwan Lee, MD, DrPH Director, Institute on Aging Professor of Preventive Medicine & Public Health Ajou University School of Medicine Suwon, South Korea Dr. Lee wishes to acknowledge Jinhee Kim, PhD, the lead author of the study. Medical Research: What is the background for this study? Dr. Lee: We have known for some time that there is a progressive loss of muscle mass with aging, where older people lose on average about 1% of their skeletal muscle mass per year. A decline in muscle mass is serious in that it increases the person’s risk of falls, frailty, disability, and death. Because there is currently no “cure” for muscle mass loss, prevention is the best strategy. Over the years, researchers have studied various lifestyle factors to identify potentially modifiable behaviors that may prevent or slow the loss of muscle mass. The majority of prior research so far have found that diet, in the form of protein supplementation, and exercise, especially resistance exercise, may confer some benefits. More recently, the scientific community have begun to pay attention to the positive role of vegetables and fruits intake on the muscle. The role of aerobic exercise on muscle mass is, however, less clear. Also, because people tend to adopt various lifestyles, we were interested in finding out whether those engaging in healthier patterns of diet and exercise retained higher muscle mass. This is why bodybuilders pay such close attention to their diet and make sure their muscle mass is at it's peak. They can also take supplements like SARMs (see SARMS.io for more information about that) to improve muscle mass but their diet has a massive effect on it too. This is where some of the inspiration for this research came from as we knew what an effect food had on bodybuilders so we wondered how it could effect the elderly. Using data from a nationally representative sample of older adults, we investigated whether those who had healthier diet and participated in regular exercise, individually and in combination, maintained higher muscle mass. We looked at five healthy lifestyle factors that included dietary intake of three food groups (meat, fish, eggs, legumes; vegetables; and fruits) and participation in two types of exercise (aerobic and resistance). (more…)
Author Interviews, FDA, Flu - Influenza, Geriatrics, Lancet, Vaccine Studies / 03.04.2015

Dr Richard Forshee PhD Food and Drug Administration, Silver Spring, MD MedicalResearch.com Interview with: Dr Richard Forshee PhD Associate Director for Research in the Office of Biostatistics and Epidemiology Center for Biologics Evaluation and Research U.S. Food and Drug Administration Silver Spring, MD On behalf of the study authors Medical Research: What is the background for this study? What are the main findings? Dr. Forshee: Influenza continues to be a major public health concern causing illness, hospitalization, and death. The elderly are at highest risk for seasonal influenza complications, including hospitalization and death. As people grow older their ability to raise a strong protective immune response can weaken.  The availability of a vaccine that uses a higher dose to induce a stronger immune response could reduce the serious impact of influenza in this age group.  The purpose of this study was to determine whether a high-dose inactivated influenza vaccine was more effective for prevention of probable influenza infections and influenza-related hospital admissions, compared to standard-dose inactivated influenza recipients. In December 2009, the U.S. Food and Drug Administration (FDA) licensed Fluzone High Dose, an injectable inactivated trivalent seasonal influenza vaccine for people ages 65 years and older. This high-dose vaccine contains four times more hemagglutinin—the active ingredient in influenza vaccines that cause the human body to produce antibodies against the influenza viruses—than the standard-dose vaccine. The FDA approved the high-dose vaccine using the accelerated approval regulatory pathway, which allows the agency to approve products for serious or life-threatening diseases based on reasonable evidence of a product’s effectiveness.  This pathway reduces the time it takes for needed medical products to become available to the public.  Studies conducted prior to licensure showed an enhanced immune response to the high-dose vaccine compared with the standard-dose vaccine in individuals 65 years of age and older indicating that the high-dose vaccine was reasonably likely to be more effective in preventing influenza disease. As part of the accelerated approval process, the manufacturer, Sanofi Pasteur, was required to conduct a randomized clinical study post-licensure to confirm that the high-dose vaccine decreased seasonal influenza disease after vaccination relative to standard dose vaccine. This confirmatory study demonstrated that the high–dose vaccine prevented 24% more cases of laboratory-confirmed influenza illness compared to standard-dose vaccines in people 65 years of age and older. However, the study was not large enough to determine efficacy of the vaccine against severe disease. A team of scientists from FDA, the Centers for Disease Control and Prevention, Centers for Medicare and Medicaid Services, and Acumen LLC ( an independent research organization) studied the relative effectiveness of the high-dose influenza vaccine in the U.S. population ages 65 years and older.  The observational study, which covered the 2012-2013 influenza season, found a significant reduction both in influenza-associated illness and in influenza-related hospitalizations among individuals who received the high-dose vaccine, compared to those receiving the standard dose. Additional background about this study: “Comparative effectiveness of high-dose versus standard-dose influenza vaccines in US residents aged 65 years and older from 2012 to 2013 using Medicare data: a retrospective cohort analysis” is available at: http://dx.doi.org/10.1016/S1473-3099(14)71087-4 A commentary on the study titled “Novel observational study designs with new influenza vaccines” is available at: http://dx.doi.org/10.1016/S1473-3099(15)70020-4 (more…)
Author Interviews, Blood Pressure - Hypertension, Cognitive Issues, Geriatrics, JAMA / 03.03.2015

MedicalResearch.com Interview with: Dr. Enrico Mossello Research Unit of Medicine of Ageing Department of Experimental and Clinical Medicine University of Florence MedicalResearch: What is the background for this study? What are the main findings? Dr. Mossello: In spite of the high prevalence of high blood pressure (HBP) and cognitive impairment in old age, their relationship is still controversial. While several (but not all) studies have identified high blood pressure as a risk factor for incident cognitive impairment, evidence regarding the prognostic role of blood pressure in cognitively impaired older subjects is scarce and inconsistent. To our knowledge, no longitudinal study has been published up to now regarding Ambulatory Blood Pressure Monitoring (ABPM) in subjects with cognitive impairment. Moreover recent European and American guidelines on HBP leave decisions on antihypertensive therapy of frail elderly patients to the treating physician and do not provide treatment targets for cognitively impaired patients. In the present cohort study of subjects with dementia and Mild Cognitive Impairment (MCI) low values of day-time systolic blood pressure measured with ABPM were associated with greater progression of cognitive decline after a median 9-month follow-up. This association was limited to subjects treated with anti-hypertensive drugs and was independent of age, vascular comorbidity and baseline cognitive level, holding significant both in dementia and in Mild Cognitive Impairment subgroups. A similar trend of association was observed for office systolic blood pressure, although this was weaker and did not reach statistical significance in all analyses. (more…)
Aging, Author Interviews, Geriatrics, Social Issues / 01.03.2015

Angela L. Curl PhD MSW School of Social Work University of Missouri Columbia, MOMedicalResearch.com Interview with: Angela L. Curl PhD MSW School of Social Work University of Missouri Columbia, MO MedicalResearch: What is the background for this study? What are the main findings? Dr. Curl: Often people think of stopping driving as just effecting one person: the person who stops driving. In reality, for married couples driving cessation affects both spouses. Using longitudinal data (1998-2010) from 1,457 married couples participating in the Health and Retirement Study, we found that husbands and wives who are no longer able to drive are less likely to work, and less likely to engage in formal volunteering (for charitable organizations) and informal volunteering (helping friends and neighbors not-for-pay). Having a spouse in the household who is still able to drive does reduce these negative consequences a little, but not entirely. Furthermore, the spouse who continues to drive is also less likely to continue working or volunteering following the driving cessation of their partner, presumably because he/she is providing transportation or social support to the non-driver. (more…)
Author Interviews, Geriatrics, Kidney Disease / 28.02.2015

Nisha Bansal MD MAS Assistant Professor Associate Program Director for Research Kidney Research Institute Division of Nephrology University of WashingtonMedicalResearch.com Interview with: Nisha Bansal MD MAS Assistant Professor Associate Program Director for Research Kidney Research Institute Division of Nephrology University of Washington Medical Research: What is the background for this study? What are the main findings? Dr. Bansal: We pursued this study to develop a prediction equation for death among elderly patients with chronic kidney disease (CKD), a high-risk patient population that is often difficult to manage given competing risks of end stage renal disease (ESRD) vs. death. In this paper, we developed and validated a simple prediction equation using variables that are readily available to all clinicians. (more…)
Author Interviews, Exercise - Fitness, Geriatrics, PLoS / 19.02.2015

Tess Harris St George’s University of LondonMedicalResearch.com Interview with: Tess Harris St George’s University of London   MedicalResearch: What is the background for this study? Response: Physical activity is vital for both physical and mental health in older people, preventing at least 20 common health problems. Yet the majority of older people do not achieve the World Health Organisation physical activity guidelines for health of at least 150 minutes every week of at least moderate-to-vigorous intensity physical activity in bouts that each last at least 10 minutes. Brisk walking is a good way to achieve moderate intensity physical activity, with a low risk of harm. Pedometers can give you direct feedback on your step-count and accelerometers record both step-counts and the intensity of physical activity achieved. The PACE-Lift trial assessed whether an intervention to increase walking, comprising pedometer and accelerometer feedback, combined with physical activity consultations provided by practice nurses over a 3 month period, based on simple behaviour change techniques, could lead to sustained increases in physical activity in 60-75 year olds. (more…)
Author Interviews, Geriatrics, Hip Fractures, Lancet / 06.02.2015

Ingvild Saltvedt PhD Department of Neuroscience, Norwegian University of Science and Technology, Medical Faculty Trondheim, Norway MedicalResearch.com Interview with: Ingvild Saltvedt PhD Department of Neuroscience, Norwegian University of Science and Technology, Medical Faculty Trondheim, Norway Medical Research: What is the background for this study? What are the main findings? Dr. Saltvedt: Hip fracture patients are often old, frail and have many comorbidities. When treated with a traditional orthopaedic approach the outcomes are often poor, and many patients get functionally impaired with reduced ability to walk independently and impairment in daily life activities and with high costs for the society.  In many ways these patients are geriatric patients with hip-fractures. It has previously been shown that acutely sick geriatric patients benefit from treatment in geriatric wards and different kind of  orthogeriatric treatment models where orthopaedic surgeons and geriatricians collaborate have been studied and have shown beneficial results on short term outcomes. In the present study patients home-dwelling hip-fracture patients were randomised to orthogeriatric treatment or traditional orthopaedic treatment from admission to the hospital and during the entire stay except for the surgery that was performed similar in both groups. The study focused on long-term outcomes and also on use of health care services and cost-effectiveness.  Patients in the orthogeriatric group got comprehensive geriatric assessment and treatment performed by an interdisciplinary team that emphasised early mobilisation and rehabilitation and started discharge planning early. In the orthopaedic group traditional treatment according to national and international guidelines was offered. The primary endpoint was mobility at four months, that was better in the orthogeriatric group than in the orthopaedic group, the same difference was also shown at 12 months. In addition there were differences in instrumental activities of daily living and personal activities of daily living, quality of life and fear of falling, all differences were statistically and clinically significant and in favour of the orthoegeriatric group. The length of hospital stay was 1,7 days longer in the geriatric group, while there was no differences in days spent in hospital during one year of follow-up. One of four orthogeriatric patients were discharged directly home as compared to one of ten in the orthopaedic group. The orthopaedic group spent more days in nursing homes and rehabilitation institutions during one year of follow-up. The treatment was cost-effective in favour of the orthogeriatric group. (more…)
Author Interviews, Geriatrics, Sexual Health / 01.02.2015

MedicalResearch.com Interview with: David M. Lee PhD MPH Cathie Marsh Institute for Social Research The University of Manchester Manchester UK Medical Research: What is the background for this study? What are the main findings? Response: These data on sexual health and wellbeing were collected in the latest phase of the English Longitudinal Study of Ageing (ELSA). ELSA is a representative survey of a cohort aged 50 to >90 years, and has gathered detailed longitudinal data since 2002 on changes in health, economic and social circumstances as people prepare for and move into retirement and old age. Our research asked over 7000 men and women taking part in ELSA a wide range of questions about their sexual lives; including their attitudes to sex, how sexually active they were and what problems and concerns they experienced with their sexual health. Around two-thirds of men and over half of women in this survey thought ‘good sexual relations were essential to the maintenance of a long-term relationship’ or ‘being sexually active was physically and psychologically beneficial to older people’. We found that half of men and almost a third of women aged 70 and over were still sexually active, with around a third of these sexually active older people having sexual intercourse twice a month or more. Sexual problems were relatively common, however, with a third of sexually active women reporting difficulties becoming sexually aroused or achieving orgasm. For men difficulties getting and maintaining an erection was the most common problem, reported by 40% of those who were sexually active. Chronic health conditions and poor self-rated health seemed to have more obvious negative impacts on the sexual health of men compared to women. Men were more concerned about their sexual activities and function than women and, with increasing age, these concerns tended to become more common. Take a look at Men's Review Zone for help with and solutions for any problems you may be experiencing. Sexually active women were less dissatisfied with their overall sex lives than men, and also reported decreasing levels of dissatisfaction with increasing age. (more…)
Author Interviews, Geriatrics, Hearing Loss, JAMA / 28.01.2015

Margaret T. Dillon, AuD University of North Carolina School of MedicineMedicalResearch.com Interview with: Margaret T. Dillon, AuD University of North Carolina School of Medicine Medical Research: What is the background for this study? What are the main findings? Dr. Dillon: The goal of this study was to evaluate whether age at revision cochlear implantation influences post-revision speech perception performance. A cochlear implant is an implantable auditory prosthesis that aims to provide sound to patients with certain degrees of hearing loss, by converting and transmitting the acoustic sound into electric stimulation. Research has shown cochlear implant recipients experience improved speech perception in quiet and noise as compared to preoperative performance with conventional amplification (ie, hearing aids). There is variability in postoperative performance. Understanding the cause or causes of this variability is the primary goal of a number of research studies. One suspected indicator for this variability is advanced age at the time of surgery. Though the incidence of revision cochlear implantation is low, it may be warranted when the internal device is no longer functional or not functioning optimally. We reviewed the pre-revision and post-revision speech perception performance of younger (< 65 years of age) and older (> 65 years of age) adult cochlear implant recipients. There was no difference between the post-revision speech perception performance between the two groups. (more…)