MedicalResearch.com Interview with:
Gabriel Popescu
Associate Professor
Department of Electrical and Computer Engineering & Bioengineering
University of Illinois at Urbana-Champaign
Beckman Institute for Advanced Science Urbana, IL
Medical Research: What are the main findings of the study?
Prof. Popescu: We used a new imaging method, which combines microscopy and interferometry, to measure nanoscale fluctuations in the red blood cell membrane. We found that the fluctuations, known to be due to thermal or Brownian motion, decrease with blood storage time. These results indicate that the deformability of the cells degrades with time. It means that blood functionality is lower the longer the blood is stored.
MedicalResearch.com Interview with:
Sylvia Wassertheil-Smoller, PhD
Department of Epidemiology and Population Health
Albert Einstein College of Medicine
Bronx, NY 10461.
First author on this paper was Arjun Seth, BS, Dr. Wassertheil-Smoller’s mentee and a medical student at the Albert Einstein College of Medicine.
Medical Research: What are the main findings of the study?
Dr. Wassertheil-Smoller: We found in study of nearly 100,000 postmenopausal women in the Women's Health Initiative that a high intake of dietary potassium was associated with a lower risk of ischemic stroke and death from all causes.
MedicalResearch.com Interview with:
Jeffrey Cohen MD
Department of Neurology
Cleveland Clinic
Medical Research: What are the main findings of the study?
Dr. Cohen: This study assessed the relationship between walking speed, as measured by the Timed 25-foot Walk test, and patient-reported quality of life, as measured by the Physical Component Summary score of the 36-Item Short Form Health Survey (SF-36), in a pooled dataset from the AFFIRM, SENTINEL, and IMPACT multiple sclerosis Phase 3 trials. It showed that slowed walking speed is associated with decreased quality of life. It also showed that 20-25% slowing of walking speed is a clinically meaningful change.
MedicalResearch.com Interview Invitation
Paula Berstad, PhD, postdoc
Telemark Hospital
c/o Cancer Registry of Norway
Oslo, Norway
Medical Research: What are the main findings of the study?
Dr. Berstad: In general population of age 50-55 years, both those invited to bowel cancer screening in year 2001 by flexible sigmoidoscopy and those not invited improved their lifestyle from year 2001 to 2012. Lifestyle was measured as adherence to public health guidelines; non-smoking, daily physical exercise, healthy diet and normal body weight. However, the 11-year improvement was smaller in those who were screened for bowel cancer compared to those not screened. Further, among those who attended the screening, the improvement was smaller in those with findings at screening (positive screening result) compared to those without findings (negative screening result). Our interpretation of the findings is that bowel cancer screening may have a small unwanted effect on lifestyle. Particularly, attention should be given to lifestyle among those testing positive at screening.
David T. Fox, Ph.D.
Scientist 3
Los Alamos National Laboratory and
Prof. Samir Mitragotri
Center for Bioengineering and Department of Chemical Engineering
University of California, Santa Barbara, CA 93106
Medical Research: What are the main findings of this study?
Answer: Our research team identified a molten salt, choline-geranate, that possessed multiple beneficial biological traits. Specifically, when mixed in a 1:2 ratio (choline:geranate) this solvent is able to effectively disrupt and neutralize 72-hour biofilms formed by both Pseudomonas aeruginosa and Salmonella enterica. Further, our studies demonstrated the same solvent exhibited minimal cytotoxicity effects to normal human bronchial epithelial (NHBE) cells and was able to deliver an antibiotic, cefadroxil, through the stratum corneum into the epidermis and dermis. Most importantly, the research culminated in demonstrating the molten salt was able to neutralize ~95% of the bacteria found within a 24-hour P. aeruginosa biofilm when grown on a skin wound model (MatTek) and ~98% of the bacteria when formulated with the antibiotic, ceftazidime. When the biofilm was treated with only antibiotic in a saline solution, less than 20% of the bacteria were neutralized.
MedicalResearch.com Interview with:
Tea Lallukka, PhD
Finnish Institute of Occupational Health &
University of Helsinki, Hjelt Institute, Department of Public Health
University of Helsinki, Finland
Medical Research: What are the main findings of the study?
Dr. Lallukka: Our study used nationally representative survey data linked with
register data on medically certified sickness absence among working
-aged Finnish women and men. We showed consistent associations between
insomnia symptoms, sleep duration, and being tired and sickness
absence. The follow-up lasted around 7 years.
Sickness absence days were derived from comprehensive registers from
the Social Insurance Institution of Finland. The associations were
broadly similar among women and men. Furthermore, they remained even
after considering key correlates of sleep and sickness absence
including socioeconomic position, working conditions, health
behaviors, obesity, and mental and physical health. Health data were
derived from physical examination conducted by field physicians. These
data are more objective, and help provide more robust evidence. We
further covered all key sleep disturbances and sleep duration for more
comprehensive understanding about the contribution of sleep to
sickness absence. Finally, a novel method developed by the authors
(Härkänen & Kaikkonen) allowed us to estimate the difference in
sickness absence days per working year among those reporting and not
reporting different sleep disturbances. Using the difference in days
absent from work, we were further able to estimate the hypothetical
direct costs of sickness absence highlighting notable societal
significance of sleep. Thus, a large part of all costs of sickness
absence are attributable to poor sleep. For example, those sleeping 5
hours or less or 10 hours or more, were absent from work ca 5-9 days
more, as compared to those with optimal sleep length. The optimal
sleep length with the lowest risk of sickness absence was 7 hours 46
minutes for men and 7 hours 38 minutes for women.
MedicalResearch.com Interview with:
Kate Wolin, ScD, FACSM
Associate Professor
Departments of Surgery & Public Health Sciences
Loyola University Chicago, Stritch School of Medicine
Medical Research: What are the main findings of the study?
Answer: Men who are physically active are less likely to experience nocturia.
MedicalResearch.com Interview with:
Sumeet S. Chugh MD
Pauline and Harold Price Endowed Professor
Associate Director, the Heart Institute
Section Chief, Clinical Cardiac Electrophysiology
Cedars-Sinai Medical Center, Los Angeles, CA
Medical Research: What are the main findings of the study?
Dr. Chugh: Our study, conducted in the community, showed that there are unique alterations in sex hormone levels identified among patients who have sudden cardiac arrest. Male victims have lower testosterone and both males and females have higher estrogren levels.
MedicalResearch.com Interview with:
Dr Weiguo Zhang, MD PhD
Cardiovascular and Neurological Institute
6771 San Fernando,
Irving, TX 75039, USA
Medical Research: What are the main findings of the study?
Prof. Zhang: Higher heart rate has emerged as a cardiovascular risk factor and is associated with higher mortality rate. However the mechanistic link between heart rate and mortality outcome in population has been missing. The main findings of the present study in a relatively large population are two-fold: Firstly, there is a strong and positive association between resting heart rate and metabolic syndrome, which is defined when an adult has 3 of the following: obesity (waist circumference ≥90 cm for men or ≥80 for women); hypertriglyceridemia (triglycerides ≥1.7 mmol/L); low plasma level of high-density lipoprotein <1.03 mmol/L for men or <1.30 mmol/L for women); hypertension (systolic blood pressure/ diastolic blood pressure≥130/85 mmHg or current use of antihypertensive medications); hyperglycemia (fast blood glucose ≥5.6 mmol/L or previously diagnosed type 2 diabetes or current use of hypoglycaemic agents or insulin). Secondly and more importantly, those without metabolic syndrome but with higher resting heart rate will have greater risk in developing metabolic syndrome in the near future. As such, the findings from both cross-sectional and longitudinal studies provide evidence that resting heart rate is an independent risk factor for existing metabolic syndrome and a powerful predictor for its future incidence.
MedicalResearch.com Interview with:
Bongani M. Mayosi, M.B., Ch.B., D.Phil.
Department of Medicine, Old Groote Schuur Hospital
Cape Town, South Africa
Medical Research: What are the main findings of this study?
Dr. Mayosi: In those with definite or probable tuberculous pericardial effusion:
(1) Prednisolone for 6 weeks and Mycibacterium indicus pranii for three months had no significant effect on the combined outcome of death from all causes, cardiac tamponade requiring pericardiocentesis or constrictive pericarditis.
(2) Both therapies were associated with an increased risk of HIV-associated malignancy.
(3) However, use of prednisolone reduced the incidence of constrictive pericarditis and hospitalization.
(4) The beneficial effects of prednisolone on constriction and hospitalization were similar in HIV-positive and HIV-negative patients
MedicalResearch.com Interview with:
Martin Huth Ruwald, MD, PhD
Post doctoral research fellow
Heart Research Follow-up Program
University of Rochester Medical Center
Rochester, NY, US
Medical Research: What are the main findings of the study?
Dr. Ruwald: A high percentage of biventricular pacing is required for optimal outcome in patients treated with cardiac resynchronization therapy (CRT), but the influence of ectopic beats on the success of biventricular pacing has not been well established.
We found that patients with increasing amount of ectopic beats (the ectopic burden) (≥0.1%) were more likely to achieve low biventricular pacing <97% and had higher risk of heart failure or death and ventricular arrhythmias. Similarly the study identified patients with a very low amount of ectopic beats, less than 1 in 1000, who are very likely to obtain high biventricular pacing and who have very low risk of adverse outcomes.
MedicalResearch.com Interview with
Andy Menke PhD
Department of Epidemiology, Tulane University School of Medicine
New Orleans, Louisiana
Medical Research: What are the main findings of the study?
Dr. Menke: The prevalence of diabetes increased more in men than women between 1976 and 2010 in the US, from 4.7% to 11.2% in men and from 5.7% to 8.7% in women. Changes over time in the distribution of age, race/ethnicity, and obesity in the population explained all of the increase in women and only half of the increase in men.
MedicalResearch.com Interview with:
Giulio Ruffini PhD
Starlab Barcelona
Neuroelectrics Barcelona
Barcelona, Spain.
Medical Research: What are the main findings of the study?
Dr. Ruffini: We demonstrated that it is possible to transmit information directly from a brain to another one, without intervention of the peripheral nervous system (PNS) - e.g., the senses. By hyperinteraction we mean this: the technologically mediated transmission of information directly from one brain to another, bypassing our senses or effectors (all which require the intervention of the PNS).
MedicalResearch.com: Interview with:
Jean-Philippe Couderc, PhD, MBA
Associate Professor of Medicine
Research Associate professor of Electrical and Computer Engineering
University of Rochester, NY
Heart Research Follow-Up Program - Cardiology Department
Rochester, New-York 14642
Medical Research: What are the main findings of the study?
Dr. Couderc: We have developed a unique technology which enables any individual to evaluate if he/she suffers from atrial fibrillation (AF) by using a simple video camera (webcam). There are approximately 3.2 million people with AF in the US, and estimated 30 million people in the world. It has been shown that around 30% of people suffering from AF are not aware of their disease, this form is called 'silent' atrial fibrillation. AF is a progressive disease leading to stroke and heart failure. It results in significant morbidity and mortality. The total cost of AF in the US is estimated to $7billion and 75% of this cost is associated with patient hospitalization.
MedicalResearch.com Interview with:
Anna-Karin Danielsson, PhD
Project Coordinator
Karolinska Institutet
Department of Public Health Sciences (PHS)
Widerströmska huset| Stockholm, Sweden
Medical Research: What are the main findings of the study?
Dr. Danielsson: Smoking cannabis in adolescence increases the risk of adverse social consequences later on in life.
MedicalResearch.com Interview with:
Chuanhai Cao Ph.D.
Neuroscientist at the Byrd Alzheimer's Institute
and the USF College of Pharmacy.
Medical Research: What are the main findings of the study?
Dr. Cao: The major goal of this study was to investigate the effect of Ä9-tetrahydrocannabinol (THC), a major component of marijuana, on Alzheimer’s disease (AD) pathology. THC has long been known to have anti-inflammatory effects, but we were looking to determine whether THC directly affected amyloid beta (Aâ). Aâ aggregation is considered one of the key pathological hallmarks of Alzheimer’s disease. Our study showed that extremely low doses of THC were able to decrease Aâ production, inhibit Aâ aggregation, and enhance mitochondrial function in a cellular model of AD. Decreased levels of amyloid beta, coupled with THC’s inhibitory effect on aggregation may protect against the progression of Alzheimer’s disease.
MedicalResearch.com Interview with:
Dr. Juliane Bingener-Casey, M.D.
Mayo Clinic in Rochester, Minn
Medical Research: What are the main findings of the study?
Dr. Bingener: Other investigators have shown that preoperative quality of life is a predictor for postoperative survival in colon and pancreas cancer surgery. In this study we looked as preoperative quality of life as a predictor for postoperative complications. The main findings of the study were that patients who had a deficit in their quality of life before surgery had a 3 times higher risk of a serious complication before leaving the hospital than patients who had normal quality of life (16% vs 6 %), independent of gender, race, tumor stage or laparoscopic or open colectomy. Patients with serious complications before leaving the hospital also were older and had more other medical problems than patients without complications. Further, patients who had a complication stayed in the hospital longer and their postoperative quality of life was worseMedicalResearch.com Interview with: Dr. Gudrun Jonasdottir Bergman PhD National Board of Health and Welfare Sweden, Stockholm, Sweden Medical Research: What are the main findings...
MedicalResearch.com Interview with:
Jordi Salas-Salvadó MD PhD
Physiopathology of Obesity and Nutrition
Institute of Health Carlos III, Madrid, Spain
Medical Research: What are the main findings of the study?
Dr. Salas-Salvadó: The main finding of our study is that an increase in albumin-adjusted serum calcium increases the risk of type 2 diabetes in Mediterranean individuals at high cardiovascular risk. This association remained significant even after taking classic risk factors into account. To the best of our knowledge this is the first study assessing the association between changes in serum calcium levels and the risk of type 2 diabetes development.
MedicalResearch.com Interview with:
Bradley Johnston, PhD
Scientist | Child Health Evaluative Sciences
Hospital for Sick Children Research Institute
Assistant Professor | Department of Clinical Epidemiology & Biostatistics
McMaster University Toronto, Ontario, Canada
Medical Research: What are the main findings of the study?
Dr. Johnston:
MedicalResearch.com Interview with:
Gilles Montalescot M.D., Ph.D.
Professor of Cardiology
University of Paris VI; Director, Cardiac Care Unit
Institute of Cardiology, Pitié-Salpêtrière University Hospital
Paris, France
Medical Research: What are the main findings of the study?
Dr. Montalescot : Among the 1862 patients with ongoing STEMI who were enrolled in the ATLANTIC study, we found no difference between those randomized to pre-hospital (in-ambulance) ticagrelor 180 mg and those randomized to in-hospital (in-catheterization laboratory) ticagrelor 180 mg in terms of either pre-PCI ST-segment elevation resolution (≥70%) or pre-PCI TIMI 3 flow in the culprit artery, which were the co-primary endpoints. There was also no difference between the groups in terms of major adverse cardiovascular events at 30 days, with the exception that rates of definite stent thrombosis were lower in the pre-hospital ticagrelor group than in the in-hospital group, both in the first 24 hours (0% versus 0.8%, p= 0.008) and at 30 days (0.2% versus 1.2%, p = 0.02). The safety of pre-hospital ticagrelor did not appear to be an issue, since the incidence of non-CABG-related major bleeding was low and similar in both treatment groups, whichever bleeding definition was used (PLATO, TIMI, STEEPLE, GUSTO, ISTH or BARC).
MedicalResearch.com Interview with:
Melina Kibbe, MD, FACS, FAHA
Professor and Vice Chair of Research
Edward G. Elcock Professor of Surgical Research
Department of Surgery,Northwestern University
Institute for BioNanotechnology in Medicine Deputy Director
Medical Research: What are the main findings of the study?
Dr. Kibbe: We found that approximately 1/3 of all peer-reviewed published manuscripts in 5 top surgery journals did not state the sex of the animal or cell used for research. Of those that did state the sex, 80% used only males.
MedicalResearch.com Interview with:
Massimo Imazio on behalf of the COPPS-2 Investigators
Massimo Imazio. MD, FESC
Dipartimento di Cardiologia/Cardiology Department
Maria Vittoria Hospital and University of Torino
Torino, Italia
Medical Research: What is the background for this investigation?
Dr. Imazio: Post-pericardiotomy syndrome, post-operative atrial fibrillation (AF), and post-operative effusions may be responsible for increased morbidity and healthcare costs after cardiac surgery. Postoperative use of colchicine prevented these complications in a single trial (the COPPS trial published on EHJ in 2010).
Here all events occurred within 3 months and colchicine was given after cardiac surgery starting from postoperative day 3 for 1 month. However most postoperative AF events are reported in the first 3 days and thus pre-treatment with colchicine may give better outcomes. Thus we performed the COPPS-2 giving colchicine 48 to 72 hours before surgery for 1 month without a loading dose and weight adjusted doses (i.e. 0.5 mg twice daily for patients >70kg or 0.5 mg once for patients <70Kg) in order to improve patients compliance.The Colchicine for Prevention of the Post-pericardiotomy Syndrome and post-operative atrial fibrillation (COPPS-2 trial) is an investigator-initiated, double-blind, placebo-controlled, randomized clinical trial. A total of 360 consecutive candidates for cardiac surgery, 180 for each arm, were enrolled in 11 Italian centers between March 2012 and March 2014. Main exclusion criteria were absence of sinus rhythm at enrollment, cardiac transplantation, and contraindications to .