Author Interviews, Microbiome, Nature, Weight Research / 21.12.2020
Novel Bacteria May Mitigate Effects of Obesity
MedicalResearch.com Interview with:
Harriët Schellekens MSc PhD
Lecturer
Department of Anatomy & Neuroscience,
and APC Microbiome Ireland SFI Research Centre
University College Cork, Cork, IRELAND.
MedicalResearch.com: What is the background for this study?
Response: There has been an increased emphasis on gut microbiota-targeted therapeutics for the amelioration of obesity. Recent studies have identified several probiotic strains with different anti-obesity effects, including members of the genus Bifidobacterium, but the exact mechanisms of action are still lacking.
Moreover, positive effects in animal studies often do not translate in human studies.
The APC Microbiome Ireland has set up a “culture-to-product” platform, a well catalogued and quality controlled collection of bacteria with potential biofunctional activities. In my laboratory, I have developed a state-of the art “bug-to-drug” screening approach, using high-throughput biochemical and cellular assays, to fully characterize bacteria and identify the most promising bacterial strains with specific desirable probiotic and functional properties. This careful in vitro screening of APC’s strains (or customer strains) is designed to identify the most potent candidates that can impact on host physiology and overall gut-brain axis function, e.g. by producing microbial metabolites or neuroactives, altering gut-barrier function, reducing inflammation, or modifying G-protein coupled receptors. This comprehensive screening approach facilitates the precise selection and prediction of the best strains that are likely to yield a specific positive health effects in subsequent animal and human studies, based on their in vitro probiotic and functional properties. (more…)
![MedicalResearch.com Interview with: Sarah Messiah, PhD, MPH Professor of epidemiology, human genetics, and environmental sciences UTHealth School of Public Health Dallas MedicalResearch.com: What is the background for this study? Response: Given that obesity is a prevalent, serious, complex, chronic, and relapsing disease, and severe obesity is a deepening crisis, it is important to pay special attention to these challenges during the COVID-19 pandemic. This will avoid placing an even greater burden on individuals, health systems, and society in the post-COVID-19 recovery phase. Thus, it is critically important to document, in real time, how socioecological determinants of health are impacting behaviors among those with obesity. Before our study, how the COVID-19 pandemic is impacting weight management, health behaviors, and psychosocial health in particular among people with obesity was unknown. MedicalResearch.com: What are the main findings? Response: A total of 123 patients (87% female, mean age 51.2 years, mean BMI 40.2, 49.2% Non-Hispanic white, 28.7% Non-Hispanic black, 16.4% Hispanic, 7% other ethnicity, 33.1% completed bariatric surgery were included). -Two patients tested positive for SARS-CoV-2 and 14.6% reported symptoms. -10% lost their job since the beginning of the pandemic -25% reported food insecurity in that they sometimes, or always could not afford to eat balanced meals -72.8% reported increased anxiety and 83.6% increased depression since stay-at-home orders were initiated. -69.6% reported more difficultly in achieving weight loss goals -47.9% reported less exercise time and 55.8% reported less intensity -49.6% reported increased stockpiling of food -61.2% reported stress eating -61.2% reported following healthy diet plans more challenging - Hispanics were less likely to report anxiety versus non-Hispanic whites MedicalResearch.com: What should readers take away from your report? Response: In a relatively short period of time, our results show that there have been substantial perceptions in changes in health behaviors among patients with obesity. Our sample described a decreases in positive health behaviors, increases in deleterious behaviors and associated deterioration in mental health. Even though actual COVID-19 disease burden was low (1.7% tested positive for COVID-19 and another 14.6% reported symptoms), the pandemic is having a significant impact on those without infections. The major strength of this study is that it is the first snapshot into how the COVID-19 pandemic has influenced health behaviors for patients with obesity. Prior to the pandemic, it has been reported that Americans consume 20% of their calories from restaurants and that there are worsening disparities in fast food meal quality by race/ethnicity, education, and income. Due to recent economic challenges, patients may be more likely to select cheaper foods, which are often energy dense and nutrient poor. Therefore, even though we found more patients are cooking at home, the type of foods that are being stockpiled are likely to be processed foods due to their longer shelf life. These are associated with greater intake of fat, carbohydrate, and calories, which facilitate greater weight gain when compared to more balanced diets. It is possible Americans may be trading one pattern of low-quality consumption for another by choosing cheaper processed foods instead of eating out. MedicalResearch.com: What recommendations do you have for future research as a result of this work? Response: These results have implications for clinical practice and management of patients with obesity as we now move into post-COVID-19 relief efforts. Due to the increase in obesogenic behaviors related to the COVID-19 pandemic that were found here, it is paramount that healthcare access is not disrupted for patients with obesity. Maintaining these vital services will prevent exacerbating the negative health and economic consequences of excess body weight. This includes access to primary care providers, Obesity Medicine specialists and bariatric surgery programs. In addition to asking about diet and exercise patterns, screening for indicators of mental health, loneliness, financial stressors and behaviors that may influence body weight should be implemented by healthcare teams to combat this problem. Disclosures: This work was funded by the National Institutes of Health, National Institute on Minority Health and Health Disparities (Grant #R01MD011686). This work was a joint collaboration among investigators from UTHealth School of Public Health, UT Southwestern Medical Center and Minimally Invasive Surgical Associates. Citation: Almandoz, J.P., Xie, L., Schellinger, J.N., Mathew, M.S., Gazda, C., Ofori, A., Kukreja, S. and Messiah, S.E. (2020), Impact of COVID ‐19 Stay‐at‐Home Orders on Weight‐Related Behaviors Among Patients with Obesity. Clin Obes. Accepted Author Manuscript. doi:10.1111/cob.12386 [subscribe] [last-modified] The information on MedicalResearch.com is provided for educational purposes only, and is in no way intended to diagnose, cure, or treat any medical or other condition. Always seek the advice of your physician or other qualified health and ask your doctor any questions you may have regarding a medical condition. In addition to all other limitations and disclaimers in this agreement, service provider and its third party providers disclaim any liability or loss in connection with the content provided on this website.](https://medicalresearch.com/wp-content/uploads/2020/06/Dr-Sarah-E.-Messiah.jpg)
