Digital Commons Network^™

Effects Of Menu Labeling Policies On Transnational Restaurant Chains To Promote A Healthy Diet: A Scoping Review To Inform Policy And Research, Sofía Rincón-Gallardo Patiño, Mi Zhou, Fabio Da Silva Gomes, Robin Lemaire, Valisa Hedrick, Elena Serrano, Vivica I. Kraak

Faculty Publications

No abstract provided.

A Chance For Success: Understanding How Latinx Students Make Meaning Of Federal Work-Study Employment, Raylea Danelle Rideau

LSU Doctoral Dissertations

Many students engage in Federal Work-Study as a means of additional income and part-time employment. However, few studies detail the program’s overall effectiveness and impact, especially from the perspectives of students of color. This qualitative study described, by way of multiple case study design, how Latinx students employed in at least one semester of an on-campus Federal Work-Study position make meaning of their employment experience. The researcher explored the varied experiences of six undergraduate Latina women employed through work-study through the theoretical lenses of happenstance, self-authorship, and career construction. Sources of evidence used for this study included interviews, documentation, written …

A Multilevel Analysis Of Gross Motor Coordination Of Children And Adolescents Living At Different Altitudes: The Peruvian Health And Optimist Growth Study, Carla Santos, Alcibíades Bustamante, Donald Hedeker, Olga Vasconcelos, Rui Garganta, Peter T. Katzmarzyk, José Maia

Population and Public Health Science Faculty Publications

Background: Gross motor coordination (GMC) is a potential correlate of lifestyle behaviours and health outcomes in childhood and adolescence. Aims: The aim of this study was to examine how sex, age, biological maturation, overweight, stunting, and physical fitness are associated with GMC in children and adolescents from Peru, and to examine associations between geographical area of residence, school-level characteristics, and GMC. Subjects and methods: The sample included 7408 subjects, aged 6–14 years, from sea level, Amazon and high-altitude regions of Peru. A composite marker of total coordination was derived by the sum of scores from each test (GMCT). Overweight was …

Some Issues In The Ethics Of Food Waste, Brian E. Roe, Danyi Qi, Kathryn E. Bender

Faculty Publications

© 2020 Elsevier Inc. It is estimated that nearly one-third of food produced on the planet never meets its intended purpose of human nourishment. This represents a substantial stock of resources available for reallocation. Any potential reallocation of resources raises ethical issues – who should sacrifice (change current behaviors), who should benefit, and what methods are appropriate to induce the behavioral change required to invoke the reallocation? In this brief article, we will discuss several topics in the food waste literature that, in our opinion, raise ethical issues that warrant further thought and consideration. These include the emphasis on food …

Development Of A Surgical Procedure For Removal Of A Placentome From A Pregnant Ewe During Gestation, Colleen A. Lambo, Ashley K. Edwards, Fuller W. Bazer, Kathrin Dunlap, M. Carey Satterfield

Faculty Publications

Background: In recent decades, there has been a growing interest in the impact of insults during pregnancy on postnatal health and disease. It is known that changes in placental development can impact fetal growth and subsequent susceptibility to adult onset diseases; however, a method to collect sufficient placental tissues for both histological and gene expression analyses during gestation without compromising the pregnancy has not been described. The ewe is an established biomedical model for the study of fetal development. Due to its cotyledonary placental type, the sheep has potential for surgical removal of materno-fetal exchange tissues, i.e., placentomes. A novel …

Rejuvenation Of Neutrophil Functions In Association With Reduced Diabetes Risk Following Ten Weeks Of Low-Volume High Intensity Interval Walking In Older Adults With Prediabetes – A Pilot Study, David B. Bartlett, Cris A. Slentz, Leslie H. Willis, Andrew Hoselton, Janet L. Huebner, Virginia B. Kraus, Jennifer Moss, Michael J. Muehlbauer, Guillaume Spielmann, Deborah M. Muoio, Timothy R. Koves, Helena Wu, Kim M. Huffman, Janet M. Lord, William E. Kraus

Faculty Publications

Neutrophil dysfunction is a common feature of aging, and is associated with the pathogenesis of many age-related diseases, including type 2 diabetes mellitus (T2DM). Although exercise training improves metabolic health, decreases risk of T2DM, and is associated with improving neutrophil functions, involvement in regular physical activity declines with age. The aim of this study was to determine if neutrophil functions could be improved in association with changes in fitness and metabolic parameters in older adults at risk for T2DM using 10-weeks of low volume high-intensity interval exercise training (HIIT). Ten older (71 ± 5 years) sedentary adults with prediabetes (HbA1c: …

Stunting And Physical Fitness. The Peruvian Health And Optimist Growth Study, Carla Santos, Alcibíades Bustamante, Olga Vasconcelos, Sara Pereira, Rui Garganta, Go Tani, Donald Hedeker, Peter T. Katzmarzyk, José Maia

Population and Public Health Science Faculty Publications

Stunting, defined as linear growth retardation, is a serious public health problem in developing countries. We aimed to (1) describe the prevalence of stunting in Peruvian youth living in three geographical regions, and to (2) determine height and physical fitness (PF) differences between stunted and normal-growth children across age and sex. We sampled 7918 subjects (7074 normal-growth and 844 stunted), aged 6–15 year, from sea-level, Amazon and high-altitude regions of Peru. PF was assessed with standardized tests, and stunting was computed following World Health Organization (WHO) standards. A two-factor analysis of variance (ANOVA) model was used. Results showed that stunting …

Plant Genome Size Influences Stress Tolerance Of Invasive And Native Plants Via Plasticity, Laura A. Meyerson, Petr Pyšek, Magdalena Lučanová, Sara Wigginton, Cao Tri Tran, James T. Cronin

Faculty Publications

© 2020 The Authors. Plant genome size influences the functional relationships between cellular and whole-plant physiology, but we know little about its importance to plant tolerance of environmental stressors and how it contributes to range limits and invasion success. We used native and invasive lineages of a wetland plant to provide the first experimental test of the Large Genome Constraint Hypothesis (LGCH)—that plants with large genomes are less tolerant of environmental stress and less plastic under stress gradients than plants with small genomes. We predicted that populations with larger genomes would have a lower tolerance and less plasticity to a …

Baseline Habitual Physical Activity Predicts Weight Loss, Weight Compensation, And Energy Intake During Aerobic Exercise, Christoph Höchsmann, James L. Dorling, John W. Apolzan, Neil M. Johannsen, Daniel S. Hsia, Corby K. Martin

Clinical Research Faculty Publications

Objective: This study aimed to determine whether different measures of habitual physical activity (PA) at baseline predict weight change, weight compensation, and changes in energy intake (EI) during a 24-week supervised aerobic exercise intervention. Methods: Data from 108 participants (78 women; 48.7 [SD: 11.6] years; BMI 31.4 [SD: 4.6] kg/m2), randomly assigned to either the moderate-dose exercise group (8 kcal/kg of body weight per week) or the high-dose exercise group (20 kcal/kg of body weight per week) of the Examination of Mechanisms of Exercise-induced Weight Compensation (E-MECHANIC) trial, were analyzed. Moderate-to-vigorous PA (MVPA), steps per day, and PA energy expenditure …

Consuming A Ketogenic Diet Leads To Altered Hypoglycemiccounter-Regulation In Mice, Christopher D. Morrison, Cristal M. Hill, Marina A. Duvall, Carolyn E. Coulter, Jasmin L. Gosey, Matthew J. Herrera, Lauren E. Maisano, Hunter X. Sikaffy, David H. Mcdougal

Division of Basic Science Faculty Publications

Ketogenic diets (KDs) are becoming increasingly popular for the treatment of diabetes, yet they are associated with increased frequency of hypoglycemia. Here we report that mice fed a KD display blunted glucagon release to hypoglycemia and neuroglucopenia, suggesting that consuming a KD may increase the risk for iatrogenic hypoglycemia.

A Pomc-Originated Circuit Regulates Stress-Induced Hypophagia, Depression, And Anhedonia, Na Qu, Yanlin He, Chunmei Wang, Pingwen Xu, Yongjie Yang, Xing Cai, Hesong Liu, Kaifan Yu, Zhou Pei, Ilirjana Hyseni, Zheng Sun, Makoto Fukuda, Yi Li, Qing Tian, Yong Xu

Division of Basic Science Faculty Publications

Chronic stress causes dysregulations of mood and energy homeostasis, but the neurocircuitry underlying these alterations remain to be fully elucidated. Here we demonstrate that chronic restraint stress in mice results in hyperactivity of pro-opiomelanocortin neurons in the arcuate nucleus of the hypothalamus (POMCARH neurons) associated with decreased neural activities of dopamine neurons in the ventral tegmental area (DAVTA neurons). We further revealed that POMCARH neurons project to the VTA and provide an inhibitory tone to DAVTA neurons via both direct and indirect neurotransmissions. Finally, we show that photoinhibition of the POMCARH→VTA circuit in mice increases body weight and food intake, …

Waist Circumference And Its Changes Are More Strongly Associated With The Risk Of Type 2 Diabetes Than Body Mass Index And Changes In Body Weight In Chinese Adults, Yuxin Fan, Ruodan Wang, Li Ding, Zhaowei Meng, Qing Zhang, Yun Shen, Gang Hu, Ming Liu

Population and Public Health Science Faculty Publications

Background: The associations of different adiposity indicators and short-term adiposity change with diabetes risk are not fully elucidated. Objective: We aimed to assess the independent and joint effects of different baseline adiposity indicators and short-term body adiposity change on the risk of type 2 diabetes. Methods: We prospectively followed 10,419 Chinese adults aged 20–80 y in 2008–2012. Incident diabetes was diagnosed based on fasting glucose, 2-h glucose, or glycated hemoglobin (HbA1c) after an oral glucose tolerance test using the American Diabetes Association standard. Cox proportional hazard regression models were used to assess the associations of adiposity indicators and adiposity change …

Sleep, Quality Of Life, And Depression In Endometrial Cancer Survivors With Obesity Seeking Weight Loss, Nora L. Nock, Anastasia Dimitropoulos, Kristine M. Zanotti, Steven Waggoner, Christa Nagel, Mladen Golubic, Chad M. Michener, John P. Kirwan, Jay Alberts

Division of Basic Science Faculty Publications

Purpose: Incidence and mortality rates of uterine cancer are increasing and, obesity, which is also rising, has been associated with uterine cancer development and mortality. A recent study found that poor sleep quality is common among endometrial cancer survivors and those with obesity had more sleep disturbances than those having normal weight. However, it is unclear if higher levels of obesity (Class III, BMI ≥ 40 kg/m2), which are rising rapidly, are differentially associated with sleep as well as depression and quality of life in endometrial cancer survivors. Methods: We evaluated sleep, depression, and quality of life in 100 Stage …

Impact Of Calorie Restriction On Energy Metabolism In Humans, Jasper Most, Leanne Maree Redman

Clinical Research Faculty Publications

Calorie restriction (CR) is the most potent, non-pharmacological intervention to support metabolic health. The effects of calorie restriction exceed weight loss. Consistent throughout many studies, calorie restriction induces a reduction in energy expenditure that is larger than the loss of metabolic mass, i.e. fat-free mass and fat mass, can explain. Per prevailing theories of mammalian aging, this disproportionate reduction in metabolic rate, defined as metabolic adaptation, reduces oxidative damage and thereby delays age-associated declines in physiological function. The aim of this narrative review is to investigate the origins of CR-induced metabolic adaptation. From a physiological standpoint this likely relates to …

Extended Heavy Television Viewing May Impact Weight Long Term In Adolescents, Elizabeth Kipling Webster, Amanda E. Staiano

Population and Public Health Science Faculty Publications

No abstract provided.

Conserved And Variable Responses Of The Gut Microbiome To Resistant Starch Type 2, Zachary A. Bendiks, Knud E.B. Knudsen, Michael J. Keenan, Maria L. Marco

Faculty Publications

Resistant starch type 2 (RS2), a dietary fiber comprised solely of glucose, has been extensively studied in clinical trials and animal models for its capacity to improve metabolic and systemic health. Because the health modulatory effects of RS2 and other dietary fibers are thought to occur through modification of the gut microbiome, those studies frequently include assessments of RS2-mediated changes to intestinal microbial composition and function. In this review, we identify the conserved responses of the gut microbiome among 13 human and 35 animal RS2 intervention studies. Consistent outcomes of RS2 interventions include reductions in bacterial α-diversity; increased production of …

Heads Up: Design And Methods Of A Louisiana State-Funded Surgical And Non-Surgical Weight Loss Program, Phillip J. Brantley, Win Guan, Ricky Brock, Dachuan Zhang, Gang Hu

Population and Public Health Science Faculty Publications

This paper describes the methodology, design and procedures used in the HEADS UP Project, an observational study to examine the feasibility of a state-funded weight loss program. HEADS UP offered two weight loss approaches: Bariatric surgery or a non-surgical intervention composed of medical management, a low-calorie liquid diet and lifestyle change promotion. Participants were recruited through a multi-stage screening process, in-person interviews, and an initial low-calorie diet program. Eligible participants were entered into a lottery system, with 100 participants selected for the surgical group and 200 selected for the non-surgical group annually for five years. Anthropometric, clinical, and psychosocial assessments …

The Effects Of Watermelon Juice Supplementation On Tissue Oxygen Saturation During Hyperglycemia, Sarah Elizabeth Kemp

Honors Capstones

No abstract provided.

Development Of High-Fiber Belgian Waffles And Evaluation Of Product Acceptance, Product-Elicited Emotion, And Purchase Intent By Millennial Consumers, 2253299685 Velasquez

LSU Master's Theses

Dietary fiber may help reduce LDL cholesterol levels and prevent cardiovascular diseases. The US-FDA recommends 14g of fiber/1000kcal consumed, but Americans consume/day. A product containing ≥5 grams of fiber/serving can be claimed as a high-fiber product. Adding dietary fiber to food affects their physicochemical properties and sensory quality, possibly leading to less product acceptability. This study was performed to assess selected physicochemical properties and consumer perception of “high-fiber” Belgian waffles. Waffles were formulated to have fiber contents of

Characterizing The Epidemiology Of Bluetongue And Epizootic Hemorrhagic Disease Virus In Louisiana, Michael Edward Becker

LSU Doctoral Dissertations

Bluetongue virus (BTV) and Epizootic Hemorrhagic Disease Virus (EHDV) are arthropod-borne viruses (Reoviridae; Orbivirus) transmitted by biting midges in the genus Culicoides. These viruses cause hemorrhagic disease and induce serious morbidity and mortality rates in wild and captive deer. Cattle are normally asymptomatic but serve as the reservoir/amplifying host for these viruses and play an important role in the transmission cycle. The objectives of this study were to characterize the epidemiology of these viruses as they relate to white-tailed deer and cattle, evaluate different trap types for collecting Culicoides midges, and determine if these viruses can be detected …

Development And Validation Of An Early Pregnancy Risk Score For The Prediction Of Gestational Diabetes Mellitus In Chinese Pregnant Women, Si Gao, Junhong Leng, Hongyan Liu, Shuo Wang, Weiqin Li, Yue Wang, Gang Hu, Juliana C.N. Chan, Zhijie Yu, Hong Zhu, Xilin Yang

Population and Public Health Science Faculty Publications

To develop and validate a set of risk scores for the prediction of gestational diabetes mellitus (GDM) before the 15th gestational week using an established population-based prospective cohort. Methods From October 2010 to August 2012, 19 331 eligible pregnant women were registered in the three-tiered antenatal care network in Tianjin, China, to receive their antenatal care and a two-step GDM screening. The whole dataset was randomly divided into a training dataset (for development of the risk score) and a test dataset (for validation of performance of the risk score). Logistic regression was performed to obtain coefficients of selected predictors for …

Association Of Intensive Lifestyle Intervention, Fitness, And Body Mass Index With Risk Of Heart Failure In Overweight Or Obese Adults With Type 2 Diabetes Mellitus: An Analysis From The Look Ahead Trial, Ambarish Pandey, Kershaw V. Patel, Judy L. Bahnson, Sarah A. Gaussoin, Corby K. Martin, Ashok Balasubramanyam, Karen C. Johnson, Darren K. Mcguire, Alain G. Bertoni, Dalane Kitzman, Jarett D. Berry

Clinical Research Faculty Publications

Background: Type 2 diabetes mellitus (T2DM) is associated with a higher risk for heart failure (HF). The impact of a lifestyle intervention and changes in cardiorespiratory fitness (CRF) and body mass index on risk for HF is not well established. Methods: Participants from the Look AHEAD trial (Action for Health in Diabetes) without prevalent HF were included. Time-to-event analyses were used to compare the risk of incident HF between the intensive lifestyle intervention and diabetes support and education groups. The associations of baseline measures of CRF estimated from a maximal treadmill test, body mass index, and longitudinal changes in these …

Establishment Of Laboratory Methods To Assess The Application Of Blood Transfusions In Reptiles, Anke Cordula Stoehr

LSU Master's Theses

A broad knowledge base on veterinary transfusion medicine has been developed in common mammalian species, but little is known in reptiles. The goals of this thesis were to establish laboratory methods to assess the application of blood transfusions in reptiles. Morphological and physiological differences in reptiles, including their erythrocytes, hamper direct adaption of mammalian laboratory methods.

Quantification of percentage hemolysis is a crucial tool for quality assessment of stored red blood cell products. We evaluated measurement of the required analytes for this calculation (supernatant and total hemoglobin) with different methods in blood from American alligators and found that the use …

The Effects Watermelon Juice On Post Prandial Vascular Endothelial Function And Blood Flow During Hyperglycemia, Cullen M. Vincellette

LSU Master's Theses

Impaired endothelial function and microvascular dysfunction are frequently observed in individuals with cardiovascular risk factors such as obesity, insulin resistance, and type 2 diabetes. Reduced nitric oxide (NO) bioavailability is considered to be central to the development of these risk factors. NO can be generated via enzymatic reaction via NO synthase which requires the amino acid arginine. Evidence suggests that the amino acid citrulline is more effective at increasing circulating arginine levels than arginine supplementation alone. The purpose of this pilot study is to determine the potential for citrulline-rich watermelon juice (WMJ) to attenuate the reduction in postprandial endothelial function …

Understanding The Impact Of Psychological Empowerment, Workplace Motivation, And Social Capital On The Job Performance Of Farmers In Honduras: A Mixed Methods Study, Susan Lale Karimiha

LSU Doctoral Dissertations

A farmer’s job performance is critical to the production of raw materials such as food, fiber, and fuel and is therefore an important concern for individuals, businesses, and economies across the world. The literature on improving farmers’ job performance has focused more on introducing new technologies, and less on the psychosocial factors that improve job performance. The primary purpose of this study was to examine the impact of psychological empowerment, workplace motivation, and social capital on farmers’ job performance in Honduras.

A mixed methods approach was used to collect and analyze both quantitative and qualitative data. For quantitative data, a …

Simulating Southern Rust Damage In Corn Through Defoliation, Michael Keith Shannon

LSU Master's Theses

The importance of leaf area to corn for grain production beginning at silking is well documented. However, being able to predict yield loss due to defoliators such as foliar plant diseases and insects that progressively increase in defoliation over time has been difficult to quantify. To address this issue, a leaf removal study was conducted at the Dean Lee Research and Extension Center located near Alexandria, Louisiana in 2017 and 2018. Two hybrids, differing in relative maturity were evaluated in this study. An early maturing hybrid (108 days in 2017 and 107 days in 2018) and a later maturing hybrid …

Louisiana Beef Cattle Marketing Strategies, Adam Barrilleaux

LSU Master's Theses

The purpose of this study was to estimate the financial costs and returns of selected marketing strategies for cattle producers in the state of Louisiana. Cattle for the project were from the Louisiana State University Agricultural Center and commercial producers. Cattle were grouped by weight and sex and vaccinated, castrated, and handled using standard best management practices. The standard marketing practice for weaned calves in Louisiana of selling weaned animals at local stockyards was compared against alternative marketing of preconditioned calves through video auctions or after feedlot finishing. Feedlot cattle were sold both on live weight value and carcass weight …

Estimation Of Age From The Auricular Surface Of The Ilium Through The Utilization Of 3d Scanning And Gis, Krista Bennett

LSU Master's Theses

The ability to produce age estimations for adult skeletons has been a focus of forensic anthropologists for decades. Most age estimation methods for adult remains provide age ranges that are too narrow, too broad, or too vague. This project sought to combine 3D scans with GIS to produce morphological maps of the auricular surface of the os coxa in order to identify quantifiable characteristics for age assessment that could be used for generating narrower age range estimates for older adult remains.

A NextEngine ™ HD Desktop 3D scanner was used to scan the auricular surfaces of 384 os coxae from …

The Effects Of Skeletal Muscle Specific Cpt1b Knock Out On Genetically Obese Ay Mice, Allison Stone

LSU Master's Theses

Fatty acid oxidation inhibition is one approach to reducing blood glucose levels in type II diabetes. Skeletal muscle specific Carnitine Palmitoyltransferase 1b knockout mice (Cpt1b^m-/-) cannot transport long-chain fatty acids into the mitochondria to be oxidized in order to produce energy. Cpt1b^m-/- mice have debilitated fat oxidation, less fat mass and improved glucose utilization compared to control C57BL/6 mice fed a 25% fat diet.

We hypothesized that CPT1b inhibition could reduce fat mass and lower blood glucose levels in a genetic mouse model of obesity and diabetes. To test this, we bred Cpt1b^m-/- mice to A …

Larval Survival And Movement Of The Fall Armyworm And Corn Earworm (Lepidoptera: Noctuidae) In Seed Blends Of Non-Bt And Pyramided Bt Corn: Implications For Resistance Management, Marcelo Dimase

LSU Master's Theses

A seed blend refuge has been used in the U.S. Corn Belt for Bt corn insect resistance management (IRM). The fall armyworm, Spodoptera frugiperda (F.), and corn earworm, Helicoverpa zea (Boddie) are major target pests of Bt corn in the Americas. One major concern for the use of a seed blend refuge is that larval movement of insects among non-Bt and Bt plants could affect its efficacy for resistance management. To address this concern, field and greenhouse trials were conducted to determine 1) if seed blend refugia could provide comparable levels of susceptible S. frugiperda (aabb) as structured refugia and …