Author Interviews, Diabetes, JAMA, Weight Research / 14.01.2021
Type 2 Diabetes: Effect of Monoclonal Antibody Bimagrumab on Body Fat Mass
MedicalResearch.com Interview with:
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Dr. Heymsfield[/caption]
Dr. Steven Heymsfield, MD
Professor, Pennington Biomedical Research Center
Baton Rouge, LA
MedicalResearch.com: What is the background for this study?
Response: Bimagurmab is a monoclonal antibody that blocks the activin type 2 receptor. This receptor is found mainly on skeletal muscles and when blocked acts to stimulate muscle growth. Bimagrumab was developed as a potential treatment for skeletal muscle disorders. However, the first-in-man studies revealed an unexpected response to the drug: not only did skeletal muscle mass increase, but marked lowering in body fat and improved insulin sensitivity were observed. The current study was launched to follow up on these initial observations.
Dr. Heymsfield[/caption]
Dr. Steven Heymsfield, MD
Professor, Pennington Biomedical Research Center
Baton Rouge, LA
MedicalResearch.com: What is the background for this study?
Response: Bimagurmab is a monoclonal antibody that blocks the activin type 2 receptor. This receptor is found mainly on skeletal muscles and when blocked acts to stimulate muscle growth. Bimagrumab was developed as a potential treatment for skeletal muscle disorders. However, the first-in-man studies revealed an unexpected response to the drug: not only did skeletal muscle mass increase, but marked lowering in body fat and improved insulin sensitivity were observed. The current study was launched to follow up on these initial observations.
Dr. Butler[/caption]
Jay C. Butler, MD, FAAP, MACP, FIDSA
Deputy Director for Infectious Diseases
Centers for Disease Control and Prevention
Atlanta, GA 30333
MedicalResearch.com: What is the background for this study?
Response: There are still disagreements about the significance of transmission of SARS-CoV-2 from asymptomatic persons. It has been known since at least March 2020 that, unlike the closely related coronavirus that causes SARS, transmission of COVID-19 from asymptomatic and presymptomatic persons occurs and that at least 30% of infected persons do not develop symptoms. Estimating the proportion of transmissions from persons without symptoms informs the decision analysis for prioritization of community mitigations opportunities: wearing of masks, social distancing, and hand hygiene. If only a low proportion of transmission occurs from people without symptoms, these interventions would be less likely to control transmission when broadly applied in the community. On the other hand, if a significant proportion of spread is from infected persons without symptoms, the value of these measures is enhanced.
Additionally, obtaining strategic and systematic screening tests for SARS-CoV-2 to identify and isolate persons without symptoms in selected settings, such as congregational housing settings, will have greater potential impact if spread from persons without symptoms is common.
Dr. Joshi[/caption]
Nitin Joshi, Ph.D.
Engineering in Medicine/Department of Medicine
Brigham and Women's Hospital
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Dr. McGahan[/caption]
Anita M. McGahan PhD, MBA
University Professor
Professor of Strategic Management
Professor, Munk School of Global Affairs & Public Policy
George E. Connell Chair in Organizations & Society
Rotman School of Management
University of Toronto
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: The article by Phebo Wibbens, Wesley Wu-Yi Koo, and me that came out today in PLOS ONE at
Dongmei Li, Ph.D.[/caption]
Dongmei Li, Ph.D., Associate Professor
Clinical and Translational Science Institute
University of Rochester Medical Center
MedicalResearch.com: What is the background for this study?
Response: Previous animal and human studies have found that nicotine exposure could harm adolescents’ brain development and impact their cognitive functions. Electronic cigarettes, which have become very popular among youth in the US in recent years, usually contain nicotine at equivalent or possibly higher levels than traditional tobacco cigarettes. Thus, it is reasonable to assume that vaping might be associated with self-reported cognitive complaints.
MedicalResearch.com: What are the main findings?
Response: Main findings from our study are:
Dr. Li[/caption]
Li Li, MS, PhD Candidate
Division of Epidemiology, College of Public Health, Ohio State University
Graduate Research Associate, Center for Injury Research and Policy
The Abigail Wexner Research Institute at Nationwide Children’s Hospital
MedicalResearch.com: What is the background for this study?
Response: Marijuana use impairs cognitive abilities necessary for safe driving, including reaction time, road lane-tracking ability, and attention maintenance. Given increasing legalization of marijuana use in the US, our study aimed to estimate marijuana-impaired driving among teens at a national level and help to identify the current prevalence to guide future intervention programs.

Rebecca McNally[/caption]
Rebecca McAdams, MA, MPH
Senior research associate
Center for Injury Research and Policy
Nationwide Children’s Hospital
Columbus, OH
MedicalResearch.com: What is the background for this study?
Response: Sledding is a popular winter activity in communities across the country, but it may not be as risk-free as many people think.
MedicalResearch.com: What are the main findings?
Response: We found that 220,488 patients were treated in U.S. emergency departments for injuries related to sledding from 2008 through 2017. Nearly 70% of these patients were children age 19 years and younger. Compared to adults, children were almost seven times as likely to be treated in an emergency department for a sledding-related injury.
The majority of patients were injured as the result of a collision (63%). Collision injuries occurred when the patient made contact with an object in the environment (47%), when they hit the ground (16%), or when they ran into another person (10%) or sled (7%).
Head injuries are a serious concern during sledding. The head was the most frequently injured body part for children. In fact, nearly 82% of those who sustained an injury to the head were children. The type of sled can also impact the risk of head injury. Children injured while riding snow tubes and disks had a greater risk of sustaining a concussion or CHI than children who were riding sleds or toboggans. Researchers recommend wearing a helmet while sledding to reduce the risk and severity of head injuries.
While less frequent (3% of all cases), injuries occurring as a result of the sled being pulled by a motorized vehicle such as a car, ATV or snowmobile resulted in more serious injuries that required hospitalization (14%). This practice should be avoided.