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Full-Text Articles in Medicine and Health Sciences

Accelerometer-Determined Physical Behavior Metrics And Their Associations With Sarcopenia Among Oldest-Old Adults, Eric M. Eberl Oct 2021

Accelerometer-Determined Physical Behavior Metrics And Their Associations With Sarcopenia Among Oldest-Old Adults, Eric M. Eberl

Masters Theses

INTRODUCTION: Sarcopenia is a loss of muscle function and muscle mass which frequently occurs among the oldest-old adult population (aged 85+ years). The analysis of accelerometer-determined physical behavior volumes and patterns of oldest-old adults might provide novel insights into the associations with sarcopenia and its components. METHODS: A total of 145 participants in the primary sample and 87 participants in the subsample with a mean age of 88.2 (2.5) years from the Health, Aging, and Body Composition study cohort provided cross-sectional data of handgrip strength, appendicular lean mass, gait speed, and accelerometry. Probable, confirmed, and severe sarcopenia were assessed based …


Investigating The Developmental Impacts Of 3,3’-Dichlorobiphenyl (Pcb-11) In Zebrafish (Danio Rerio), Monika A. Roy Oct 2021

Investigating The Developmental Impacts Of 3,3’-Dichlorobiphenyl (Pcb-11) In Zebrafish (Danio Rerio), Monika A. Roy

Doctoral Dissertations

The environmental pollutant 3,3’-dichlorobiphenyl (PCB-11) is a lower-chlorinated polychlorinated biphenyl (PCB) congener present in air and water samples. Both PCB-11 and its metabolite, 4-PCB-11-Sulfate, are detected in humans, including in pregnant women. The work conducted for this dissertation takes a developmental toxicology approach and uses zebrafish (Danio rerio) to investigate PCB-11’s potential impacts to the liver and pancreas. Chapter 1 introduces PCBs and the current knowledge gaps. Chapter 2 investigates PCB-11 interactions in short-term 4-day exposures with the Aryl hydrocarbon receptor (Ahr) pathway in both 0-20 mM individual and mixture exposures with other Ahr agonists. In Chapter 3, …


Birthweight And Risk Of Autoimmune And Thyroid Conditions Within The Women’S Health Initiative, Brian C. Monahan Jul 2021

Birthweight And Risk Of Autoimmune And Thyroid Conditions Within The Women’S Health Initiative, Brian C. Monahan

Masters Theses

Autoimmune and thyroid conditions account for a substantial proportion of the morbidity and mortality experienced in the United States, affecting >40 million Americans combined. Co-occurrence of both an autoimmune and thyroid condition is also likely, particularly among women. Epidemiologic studies on both sets of conditions have examined many risk factors, including demographic, lifestyle, genetic, and environmental risk factors. However, one area which has been neglected is the effect of early life exposures on the development of autoimmune and thyroid conditions. To investigate the potential association between an individual’s birth weight (by category;in uteroand early childhood, extending the hypothesis to include …


Tai Chi And Mindfulness Training To Improve Balance In People With Multiple Sclerosis: A Community-Based Intervention Study, Julianna Eve Jun 2021

Tai Chi And Mindfulness Training To Improve Balance In People With Multiple Sclerosis: A Community-Based Intervention Study, Julianna Eve

Doctoral Dissertations

Introduction: Tai Chi and meditation have led to improved quality of life, and reduced fatigue and depressive symptoms in people with multiple sclerosis (MS). Tai Chi interventions have successfully improved balance, however the few studies evaluating meditation impact on motor skill improvement have reported conflicting results. Benefits of meditation on improving alertness and attention have been reported, but it is unknown whether these benefits might extend to physical balance. Objective: determine the impact of an 8-week Tai Chi or Mindfulness Based Stress Reduction (MBSR) intervention on physical balance, psychosocial wellbeing, and sensorimotor function; and whether benefits are retained after …


Potential Bioactives And Inflammatory Mediators Regulating Adipose Tissue Function In Obesity, Seok-Yeong Yu Feb 2021

Potential Bioactives And Inflammatory Mediators Regulating Adipose Tissue Function In Obesity, Seok-Yeong Yu

Doctoral Dissertations

Obesity is a serious health problem in the U.S. and worldwide and is associated with non-alcoholic fatty liver disease (NAFLD), type 2 diabetes mellitus (T2DM) and cardiovascular disease (CVD). Observational studies have also shown an inverse relationship between obesity and reduced bioavailability of fat-soluble vitamins, which is due in part to increased sequestration in expanded adipose tissue (AT). AT serves as the primary site of storage organ for excess energy, however, in morbid obesity enlarged adipocytes exhibit decreased lipid uptake, impaired lipid hydrolysis and oxidation and increased inflammation, which are collectively referred to as AT dysfunction. Substantial evidence characterizes AT …


Characterization Of Nit Sheath Protein Functions And Transglutaminase-Mediated Cross-Linking In The Human Head Louse, Pediculus Humanus Capitis, Ju Hyeon Kim, Do Eun Lee, Sangyoun Park, John M. Clark, Si Hyeock Lee Jan 2021

Characterization Of Nit Sheath Protein Functions And Transglutaminase-Mediated Cross-Linking In The Human Head Louse, Pediculus Humanus Capitis, Ju Hyeon Kim, Do Eun Lee, Sangyoun Park, John M. Clark, Si Hyeock Lee

Veterinary & Animal Sciences Department Faculty Publication Series

Background: Head louse females secrete liquid glue during oviposition, which is solidified to form the nit sheath over the egg. Recently, two homologous proteins, named louse nit sheath protein (LNSP) 1 and LNSP 2, were identified as adhesive proteins but the precise mechanism of nit sheath solidification is unknown. Methods: We determined the temporal transcriptome profiles of the head louse accessory glands plus oviduct, from which putative major structural proteins and those with functional importance were deduced. A series of RNA interference (RNAi) experiments and treatment of an inhibitor were conducted to elucidate the function and action mechanism of each …