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Sleep And Fundamental Movement Skills In Primary Schoolchildren: The React Project, Jean Philippe Chaput, Sara Pereira, Peter T. Katzmarzyk, Donald Hedeker, Tiago V. Barreira, Rui Garganta, Cláudio Farias, Fernando Garbeloto, Go Tani, David F. Stodden, José Maia Jul 2024

Sleep And Fundamental Movement Skills In Primary Schoolchildren: The React Project, Jean Philippe Chaput, Sara Pereira, Peter T. Katzmarzyk, Donald Hedeker, Tiago V. Barreira, Rui Garganta, Cláudio Farias, Fernando Garbeloto, Go Tani, David F. Stodden, José Maia

Population and Public Health Science Faculty Publications

Objective: Whether sleep is related to fundamental movement skills (FMS) in the pediatric population is largely unknown. The objective of this study was to examine the association between sleep characteristics (duration, efficiency, regularity) and FMS proficiency levels in school-aged children. Methods: This cross-sectional study included 996 children (mean age: 8.3 ± 1.2 years) from 25 of the 32 primary schools in Matosinhos, northern Portugal. Data collection occurred between January and June 2022. Sleep was assessed using an ActiGraph wGT3X-BT accelerometer worn on the wrist for 7 consecutive days. FMS proficiency levels were assessed in the schools with a new digital …

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Background, Rationale, And Methodological Overview Of The React Project—Return-To-Action On Growth, Motor Development, And Health After The Covid-19 Pandemic In Primary School Children, Sara Pereira, Peter T. Katzmarzyk, Donald Hedeker, Tiago V. Barreira, Rui Garganta, Cláudio Farias, Fernando Garbeloto, Go Tani, Jean Philippe Chaput, David F. Stodden, José Maia Jul 2024

Background, Rationale, And Methodological Overview Of The React Project—Return-To-Action On Growth, Motor Development, And Health After The Covid-19 Pandemic In Primary School Children, Sara Pereira, Peter T. Katzmarzyk, Donald Hedeker, Tiago V. Barreira, Rui Garganta, Cláudio Farias, Fernando Garbeloto, Go Tani, Jean Philippe Chaput, David F. Stodden, José Maia

Population and Public Health Science Faculty Publications

Objectives: The REACT project was designed around two main aims: (1) to assess children's growth and motor development after the COVID-19 pandemic and (2) to follow their fundamental movement skills' developmental trajectories over 18 months using a novel technological device (Meu Educativo®) in their physical education classes. In this introductory article, the first of the Journal's special issue dedicated to REACT, our goal was to present the project rationale, its methodology, training and certification of the team, statistical approach, quality control, governance, and study management. Methods: We sampled 1000 children (6–10 years of age) from 25 of the 32 primary …

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Associations Of Obesity, Movement Behaviors, And Socioeconomic Status With Fundamental Movement Skills In Children: Results From The React Project, Priscyla Praxedes, José Maia, Carla Santos, Fernando Garbeloto, Donald Hedeker, Tiago V. Barreira, Rui Garganta, Cláudio Farias, Go Tani, Jean Philippe Chaput, David F. Stodden, Peter T. Katzmarzyk, Sara Pereira Jul 2024

Associations Of Obesity, Movement Behaviors, And Socioeconomic Status With Fundamental Movement Skills In Children: Results From The React Project, Priscyla Praxedes, José Maia, Carla Santos, Fernando Garbeloto, Donald Hedeker, Tiago V. Barreira, Rui Garganta, Cláudio Farias, Go Tani, Jean Philippe Chaput, David F. Stodden, Peter T. Katzmarzyk, Sara Pereira

Population and Public Health Science Faculty Publications

Objective: To investigate the relationship of biological characteristics (age, sex, and obesity), movement behaviors (physical activity and sedentary time), and family socioeconomic status with fundamental movement skills (FMS) in primary school children. Methods: This cross-sectional study sampled 1014 children (537 girls) aged 6 to 10 years from 25 primary schools in Matosinhos, north of Portugal. Five object control skills (dribbling, kicking, catching, throwing, and underarm rolling) were assessed with a categorical scale using the Meu Educativo® platform. Body Mass Index (BMI) was calculated and transformed into z-scores. Moderate-to-vigorous physical activity (MVPA) and sedentary time were monitored with accelerometry (ActiGraph wGT3X-BT) …

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Is There An Association Between Proficiency In Fundamental Movement Skills And Mderate-To-Vigorous Physical Activity In Childhood On Weekdays And Weekends? The React Project, Fernando Garbeloto, José Maia, Tiago V. Barreira, Donald Hedeker, Jean Philippe Chaput, Rui Garganta, Cláudio Farias, Ricardo Santos, David F. Stodden, Go Tani, Peter T. Katzmarzyk, Sara Pereira Jul 2024

Is There An Association Between Proficiency In Fundamental Movement Skills And Mderate-To-Vigorous Physical Activity In Childhood On Weekdays And Weekends? The React Project, Fernando Garbeloto, José Maia, Tiago V. Barreira, Donald Hedeker, Jean Philippe Chaput, Rui Garganta, Cláudio Farias, Ricardo Santos, David F. Stodden, Go Tani, Peter T. Katzmarzyk, Sara Pereira

Population and Public Health Science Faculty Publications

Objective: The present study probes into the association between children's fundamental movement skills (FMS) and moderate-to-vigorous physical activity (MVPA) during weekdays and weekends. Methods: This cross-sectional sample included 1014 children aged 6–10 years from the REACT project. Physical activity was assessed with accelerometry, and five FMS (stationary dribble, kick, catch, overhand throw, and underhand roll) were assessed with the digital platform Meu Educativo®. Three groups were formed based on the frequency of FMS that each child mastered: group 1 (wizard level in four or five FMS); group 2 (wizard level in two or three FMS); and group 3 (wizard level …

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Individual And School Correlates Of Body Mass Index And Cardiorespiratory Fitness In Primary School Children From The React Project: A Multivariate Multilevel Analysis, Sara Pereira, Peter T. Katzmarzyk, Fernando Garbeloto, Jean Philippe Chaput, Donald Hedeker, Tiago V. Barreira, Renata Borges, Rui Garganta, Carla Santos, Cláudio Farias, David F. Stodden, Go Tani, José Maia Jul 2024

Individual And School Correlates Of Body Mass Index And Cardiorespiratory Fitness In Primary School Children From The React Project: A Multivariate Multilevel Analysis, Sara Pereira, Peter T. Katzmarzyk, Fernando Garbeloto, Jean Philippe Chaput, Donald Hedeker, Tiago V. Barreira, Renata Borges, Rui Garganta, Carla Santos, Cláudio Farias, David F. Stodden, Go Tani, José Maia

Population and Public Health Science Faculty Publications

Objective: This paper examines the relationship between body mass index (BMI) and cardiorespiratory fitness (CRF) using a multivariate multilevel approach and investigates the links between individual and school-related correlates with children's BMI and CRF. Methods: This cross-sectional sample included 1014 children (6–10 years) from 25 Portuguese primary schools. BMI was calculated, and CRF was assessed with the PACER test. Fundamental movement skills (FMS) included five object control tasks. Moderate-to-vigorous physical activity (MVPA), sleep, and sedentary time were assessed with the ActiGraph wGT3X-BT accelerometer. Socioeconomic status (SES) and school variables were also obtained. A multivariate multilevel model was used, and alpha …

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Selective Antineoplastic Potential Of Fractionated Caribbean Native Ganoderma Species Extracts On Triple-Negative Breast Cancer Cells, Luz V. Arroyo-Cruz, Sebastián Sagardía-González, Kurt Miller, Taotao Ling, Fatima Rivas, Michelle M. Martínez-Montemayor Jul 2024

Selective Antineoplastic Potential Of Fractionated Caribbean Native Ganoderma Species Extracts On Triple-Negative Breast Cancer Cells, Luz V. Arroyo-Cruz, Sebastián Sagardía-González, Kurt Miller, Taotao Ling, Fatima Rivas, Michelle M. Martínez-Montemayor

Faculty Publications

Triple-negative breast cancer (TNBC) is an aggressive subtype characterized by the absence of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor type 2 expression. It is known for its high malignancy, invasiveness, and propensity for metastasis, resulting in a poor prognosis due to the absence of beneficial therapeutic targets. Natural products derived from mushrooms have gained significant attention in neoplastic therapy due to their potential medicinal properties. The therapeutic potential of Ganoderma lucidum in breast cancer has been highlighted by our group, suggesting its use as an adjuvant treatment. The present study aims to assess the potential antineoplastic …

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The Effect Of Season On Neuroendocrine Interactions In The Mare, Victoria N. Bailey Jul 2024

The Effect Of Season On Neuroendocrine Interactions In The Mare, Victoria N. Bailey

LSU Doctoral Dissertations

Reproductive seasonality in the mare involves various neuroendocrine modulations, and a series of experiments were conducted to investigate the anatomical and physiological roles of some of these seasonal modulators. The first experiment incorporated kisspeptin-10 (Kp10) into a treatment with estradiol benzoate (EB) and sulpiride, aiming to induce early cyclicity in seasonally anovulatory mares. Incorporation of Kp10 resulted in more mares ovulating earlier compared to mares receiving EB-sulpiride. Although plasma prolactin increased in both groups, concentrations were notably higher in Kp10-treated mares. Therefore, the subsequent experiment explored the anatomical interaction of kisspeptin and prolactin, aiming to determine whether kisspeptin may regulate …

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Language Discrimination Using Bilingual Picture Exchange For Culturally And Linguistically Diverse Children With Autism Spectrum Disorder, River Waits Jul 2024

Language Discrimination Using Bilingual Picture Exchange For Culturally And Linguistically Diverse Children With Autism Spectrum Disorder, River Waits

LSU Doctoral Dissertations

Recent research suggests that one-fifth of United States households use non-English languages in the home setting. Ethically and effectively supporting culturally and linguistically diverse (CLD) clients (e.g., autistic individuals) presents a growing challenge to practitioners of Applied Behavior Analysis (ABA). Though efforts to address the linguistic needs of the population have grown in recent years, current literature focuses on language selection for monolingual services and underemphasizes the need for bilingual service provision. Studies were conducted to (I) evaluate the efficacy of bilingual picture exchange (i.e., mand response) across items, speakers, and languages (i.e., English and Spanish) as well as (II) …

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Physical Activity And Depressive Symptoms In Youth, Katherine E. Spring, Amanda E. Staiano Jun 2024

Physical Activity And Depressive Symptoms In Youth, Katherine E. Spring, Amanda E. Staiano

Population and Public Health Science Faculty Publications

No abstract provided.

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Neural Circuits Expressing The Serotonin 2c Receptor Regulate Memory In Mice And Humans, Hesong Liu, Yang He, Hailan Liu, Bas Brouwers, Na Yin, Katherine Lawler, Julia M. Keogh, Elana Henning, Dong Kee Lee, Meng Yu, Longlong Tu, Nan Zhang, Kristine M. Conde, Junying Han, Zili Yan, Nikolas A. Scarcelli, Lan Liao, Jianming Xu, Qingchun Tong, Hui Zheng, Zheng Sun, Yongjie Yang, Chunmei Wang, Yanlin He, I. Sadaf Farooqi, Yong Xu Jun 2024

Neural Circuits Expressing The Serotonin 2c Receptor Regulate Memory In Mice And Humans, Hesong Liu, Yang He, Hailan Liu, Bas Brouwers, Na Yin, Katherine Lawler, Julia M. Keogh, Elana Henning, Dong Kee Lee, Meng Yu, Longlong Tu, Nan Zhang, Kristine M. Conde, Junying Han, Zili Yan, Nikolas A. Scarcelli, Lan Liao, Jianming Xu, Qingchun Tong, Hui Zheng, Zheng Sun, Yongjie Yang, Chunmei Wang, Yanlin He, I. Sadaf Farooqi, Yong Xu

Division of Basic Science Faculty Publications

Declined memory is a hallmark of Alzheimer’s disease (AD). Experiments in rodents and human postmortem studies suggest that serotonin (5-hydroxytryptamine, 5-HT) plays a role in memory, but the underlying mechanisms are unknown. Here, we investigate the role of 5-HT 2C receptor (5-HT2CR) in regulating memory. Transgenic mice expressing a humanized HTR2C mutation exhibit impaired plasticity of hippocampal ventral CA1 (vCA1) neurons and reduced memory. Further, 5-HT neurons project to and synapse onto vCA1 neurons. Disruption of 5-HT synthesis in vCA1-projecting neurons or deletion of 5-HT2CRs in the vCA1 impairs neural plasticity and memory. We show that a selective 5-HT2CR agonist, …

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Factors Associated With Functioning In Older Black Adults, Katrail D. Davis Jun 2024

Factors Associated With Functioning In Older Black Adults, Katrail D. Davis

LSU Master's Theses

Activities of daily living can be simple tasks such as bathing, showering, toileting or as complex as managing finances, driving, and preparing meals. Independence in everyday functioning has been associated with successful aging and declines in functioning may be indicative of pathological cognitive decline. Social determinants of health, like economic status and access to health care, also play a role in everyday functioning. Understanding these factors are of particular importance for older Black adults who have had long-standing disparate access to care, education, and treatments. The current study aimed to evaluate social determinants of health, more specifically social engagement, as …

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No Evidence For Metabolic Adaptation During Exercise-Related Energy Compensation, E. W. Flanagan, G. Sanchez-Delgado, C. K. Martin, E. Ravussin, H. Pontzer, L. M. Redman Jun 2024

No Evidence For Metabolic Adaptation During Exercise-Related Energy Compensation, E. W. Flanagan, G. Sanchez-Delgado, C. K. Martin, E. Ravussin, H. Pontzer, L. M. Redman

Clinical Research Faculty Publications

The constrained energy model posits that the increased total daily energy expenditure (TDEE) in response to exercise is often less than the energy cost of the exercise prescribed. The mechanisms behind this phenomenon, coined “exercise-related energy compensation” (ExEC), are poorly understood, and it is unknown if ExEC is coupled with metabolic adaptation. Using a randomized controlled 24-week exercise intervention, individuals who demonstrated ExEC were identified. Changes to all components of TDEE and metabolic adaptation were assessed using doubly labeled water over 14 days and room calorimetry over 24-h 48% of individuals exhibited ExEC (−308 ± 158 kcals/day). There were no …

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Selection Of Host Plants For Production Of Clanis Bilineata (Lepidoptera: Sphingidae), Xiaofeng Li, Mingming Guo, Kebin Li, Song Li, Honglin Feng, Jiwei Fan Jun 2024

Selection Of Host Plants For Production Of Clanis Bilineata (Lepidoptera: Sphingidae), Xiaofeng Li, Mingming Guo, Kebin Li, Song Li, Honglin Feng, Jiwei Fan

Faculty Publications

Clanis bilineata Walker (Lepidoptera: Sphingidae), a burgeoning edible insect, is experiencing rising demand in China and other regions. Despite this interest, larval production is currently constrained by the limitations of artificial production technologies, particularly the selection of optimal host plants. This study rigorously evaluated the performance of C. bilineatha larvae on four main host plants: round-leaf soybean, pointed-leaf soybean, black locust, and kudzu. Preference tests demonstrated that the larvae were most attracted to black locust (34.76 ± 4.65%), with subsequent preferences for kudzu (25.00 ± 6.12%), round-leaf soybean (23.17 ± 2.79%), and pointed-leaf soybean (14.02 ± 4.74%). No significant preference …

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Pea Leaf Weevil, Sitona Lineatus (L.) (Coleoptera: Curculionidae), Adult Feeding Preference And Larval Development On Pulse Crop Varieties In Montana, Pragya Kiju, Kevin W. Wanner, Michael Ivie, Kevin Mcphee, Gadi V.P. Reddy Jun 2024

Pea Leaf Weevil, Sitona Lineatus (L.) (Coleoptera: Curculionidae), Adult Feeding Preference And Larval Development On Pulse Crop Varieties In Montana, Pragya Kiju, Kevin W. Wanner, Michael Ivie, Kevin Mcphee, Gadi V.P. Reddy

Faculty Publications

BACKGROUND: Montana accounts for approximately 45% of US dry pea production and the pea leaf weevil (PLW; Sitona lineatus (L.)) is the most common insect pest in this region. After crop emergence adult PLW feed on the foliage to mature and subsequently mate, and the soil-dwelling larvae feed and develop on the nitrogen-fixing root nodules. Producers commonly apply prophylactic insecticide treatments to the seed at planting as well as one or two post-emergent insecticide sprays to control PLW damage. To develop alternative management strategies based on integrated pest management (IPM), this field study evaluated pulse crops grown in Montana for …

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Hepatic Interoception In Health And Disease, Hans Rudolf Berthoud, Heike Münzberg, Christopher D. Morrison, Winfried L. Neuhuber Jun 2024

Hepatic Interoception In Health And Disease, Hans Rudolf Berthoud, Heike Münzberg, Christopher D. Morrison, Winfried L. Neuhuber

Division of Basic Science Faculty Publications

The liver is a large organ with crucial functions in metabolism and immune defense, as well as blood homeostasis and detoxification, and it is clearly in bidirectional communication with the brain and rest of the body via both neural and humoral pathways. A host of neural sensory mechanisms have been proposed, but in contrast to the gut-brain axis, details for both the exact site and molecular signaling steps of their peripheral transduction mechanisms are generally lacking. Similarly, knowledge about function-specific sensory and motor components of both vagal and spinal access pathways to the hepatic parenchyma is missing. Lack of progress …

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Inhalation Of Particulate Matter Containing Environmentally Persistent Free Radicals Induces Endothelial Dysfunction Mediated Via Ahr Activation At The Air-Blood Interface, Ankit Aryal, Ashlyn C. Harmon, Kurt J. Varner, Alexandra Noël, Stephania A. Cormier, Divine B. Nde, Peter Mottram, Jemiah Maxie, Tammy R. Dugas Jun 2024

Inhalation Of Particulate Matter Containing Environmentally Persistent Free Radicals Induces Endothelial Dysfunction Mediated Via Ahr Activation At The Air-Blood Interface, Ankit Aryal, Ashlyn C. Harmon, Kurt J. Varner, Alexandra Noël, Stephania A. Cormier, Divine B. Nde, Peter Mottram, Jemiah Maxie, Tammy R. Dugas

Division of Basic Science Faculty Publications

Particulate matter (PM) containing environmentally persistent free radicals (EPFR) is formed by the incomplete combustion of organic wastes, resulting in the chemisorption of pollutants to the surface of PM containing redox-Active transition metals. In prior studies in mice, EPFR inhalation impaired endothelium-dependent vasodilation. These findings were associated with aryl hydrocarbon receptor (AhR) activation in the alveolar type-II (AT-II) cells that form the air-blood interface in the lung. We thus hypothesized that AhR activation in AT-II cells promotes the systemic release of mediators that promote endothelium dysfunction peripheral to the lung. To test our hypothesis, we knocked down AhR in AT-II …

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Anoctamin 4 Defines Glucose-Inhibited Neurons In The Ventromedial Hypothalamus, Longlong Tu, Yanlin He, Yong Xu Jun 2024

Anoctamin 4 Defines Glucose-Inhibited Neurons In The Ventromedial Hypothalamus, Longlong Tu, Yanlin He, Yong Xu

Division of Basic Science Faculty Publications

No abstract provided.

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Estrogen Counteracts Age-Related Decline In Beige Adipogenesis Through The Nampt-Regulated Er Stress Response, Jooman Park, Ruoci Hu, Yanyu Qian, Shaolei Xiong, Asma Sana El-Sabbagh, Meram Ibrahim, Jaden Wang, Ziqiao Xu, Zhengjia Chen, Qing Song, Zhenyuan Song, Gege Yan, Abeer M. Mahmoud, Yanlin He, Brian T. Layden, Jiwang Chen, Sang Ging Ong, Pingwen Xu, Yuwei Jiang Jun 2024

Estrogen Counteracts Age-Related Decline In Beige Adipogenesis Through The Nampt-Regulated Er Stress Response, Jooman Park, Ruoci Hu, Yanyu Qian, Shaolei Xiong, Asma Sana El-Sabbagh, Meram Ibrahim, Jaden Wang, Ziqiao Xu, Zhengjia Chen, Qing Song, Zhenyuan Song, Gege Yan, Abeer M. Mahmoud, Yanlin He, Brian T. Layden, Jiwang Chen, Sang Ging Ong, Pingwen Xu, Yuwei Jiang

Division of Basic Science Faculty Publications

Thermogenic beige adipocytes are recognized as potential therapeutic targets for combating metabolic diseases. However, the metabolic advantages that they offer are compromised with aging. Here we show that treating mice with estrogen (E2), a hormone that decreases with age, can counteract the age-related decline in beige adipogenesis when exposed to cold temperature while concurrently enhancing energy expenditure and improving glucose tolerance in mice. Mechanistically, we found that nicotinamide phosphoribosyl transferase (NAMPT) plays a pivotal role in facilitating the formation of E2-induced beige adipocytes, which subsequently suppresses the onset of age-related endoplasmic reticulum (ER) stress. Furthermore, we found that targeting NAMPT …

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Accelerated Onset Of Diabetes In Non-Obese Diabetic Mice Fed A Refined High-Fat Diet, Heidi M. Batdorf, Luz De Luna Lawes, Gabrielle A. Cassagne, Molly S. Fontenot, Innocence C. Harvey, Jeremy T. Richardson, David H. Burk, Samuel D. Dupuy, Michael D. Karlstad, J. Michael Salbaum, Jaroslaw Staszkiewicz, Robbie Beyl, Sujoy Ghosh, Susan J. Burke, J. Jason Collier Jun 2024

Accelerated Onset Of Diabetes In Non-Obese Diabetic Mice Fed A Refined High-Fat Diet, Heidi M. Batdorf, Luz De Luna Lawes, Gabrielle A. Cassagne, Molly S. Fontenot, Innocence C. Harvey, Jeremy T. Richardson, David H. Burk, Samuel D. Dupuy, Michael D. Karlstad, J. Michael Salbaum, Jaroslaw Staszkiewicz, Robbie Beyl, Sujoy Ghosh, Susan J. Burke, J. Jason Collier

Division of Basic Science Faculty Publications

Aim: Type 1 diabetes results from autoimmune events influenced by environmental variables, including changes in diet. This study investigated how feeding refined versus unrefined (aka ‘chow’) diets affects the onset and progression of hyperglycaemia in non-obese diabetic (NOD) mice. Methods: Female NOD mice were fed either unrefined diets or matched refined low- and high-fat diets. The onset of hyperglycaemia, glucose tolerance, food intake, energy expenditure, circulating insulin, liver gene expression and microbiome changes were measured for each dietary group. Results: NOD mice consuming unrefined (chow) diets developed hyperglycaemia at similar frequencies. By contrast, mice consuming the defined high-fat diet had …

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Associations Between Daily Step Count Classifications And Continuous Glucose Monitoring Metrics In Adults With Type 1 Diabetes: Analysis Of The Type 1 Diabetes Exercise Initiative (T1dexi) Cohort, Lauren V. Turner, Martin Chase Marak, Robin L. Gal, Peter Calhoun, Zoey Li, Peter G. Jacobs, Mark A. Clements, Corby K. Martin, Francis J. Doyle, Susana R. Patton, Jessica R. Castle, Melanie B. Gillingham, Roy W. Beck, Michael R. Rickels, Michael C. Riddell Jun 2024

Associations Between Daily Step Count Classifications And Continuous Glucose Monitoring Metrics In Adults With Type 1 Diabetes: Analysis Of The Type 1 Diabetes Exercise Initiative (T1dexi) Cohort, Lauren V. Turner, Martin Chase Marak, Robin L. Gal, Peter Calhoun, Zoey Li, Peter G. Jacobs, Mark A. Clements, Corby K. Martin, Francis J. Doyle, Susana R. Patton, Jessica R. Castle, Melanie B. Gillingham, Roy W. Beck, Michael R. Rickels, Michael C. Riddell

Clinical Research Faculty Publications

Aims/hypothesis: Adults with type 1 diabetes should perform daily physical activity to help maintain health and fitness, but the influence of daily step counts on continuous glucose monitoring (CGM) metrics are unclear. This analysis used the Type 1 Diabetes Exercise Initiative (T1DEXI) dataset to investigate the effect of daily step count on CGM-based metrics. Methods: In a 4 week free-living observational study of adults with type 1 diabetes, with available CGM and step count data, we categorised participants into three groups—below (< 7000), meeting (7000–10,000) or exceeding (>10,000) the daily step count goal—to determine if step count category influenced CGM metrics, including per cent time …

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Effect Of Long-Term Caloric Restriction On Telomere Length In Healthy Adults: Calerie™ 2 Trial Analysis, Waylon J. Hastings, Qiaofeng Ye, Sarah E. Wolf, Calen P. Ryan, Sai Krupa Das, Kim M. Huffman, Michael S. Kobor, William E. Kraus, Julia L. Macisaac, Corby K. Martin, Susan B. Racette, Leanne M. Redman, Daniel W. Belsky, Idan Shalev Jun 2024

Effect Of Long-Term Caloric Restriction On Telomere Length In Healthy Adults: Calerie™ 2 Trial Analysis, Waylon J. Hastings, Qiaofeng Ye, Sarah E. Wolf, Calen P. Ryan, Sai Krupa Das, Kim M. Huffman, Michael S. Kobor, William E. Kraus, Julia L. Macisaac, Corby K. Martin, Susan B. Racette, Leanne M. Redman, Daniel W. Belsky, Idan Shalev

Clinical Research Faculty Publications

Caloric restriction (CR) modifies lifespan and aging biology in animal models. The Comprehensive Assessment of Long-Term Effects of Reducing Intake of Energy (CALERIE™) 2 trial tested translation of these findings to humans. CALERIE™ randomized healthy, nonobese men and premenopausal women (age 21–50y; BMI 22.0–27.9 kg/m2), to 25% CR or ad-libitum (AL) control (2:1) for 2 years. Prior analyses of CALERIE™ participants' blood chemistries, immunology, and epigenetic data suggest the 2-year CR intervention slowed biological aging. Here, we extend these analyses to test effects of CR on telomere length (TL) attrition. TL was quantified in blood samples collected at baseline, 12-, …

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Increasing Mowing Height And Nitrogen Fertility Does Not Enhance Unirrigated Centipedegrass Summer Drought Stress, Mike Adams, Jeffrey Beasley, Jeff Kuehny, Dylan Watson Jun 2024

Increasing Mowing Height And Nitrogen Fertility Does Not Enhance Unirrigated Centipedegrass Summer Drought Stress, Mike Adams, Jeffrey Beasley, Jeff Kuehny, Dylan Watson

Faculty Publications

Proper N fertilization and higher mowing heights are recommended to enhance rooting for greater turfgrass summer drought stress. To examine the effects of these primary cultural practices on centipedegrass [Eremochloa ophiuroides (Munro) Hack.] drought response in the mid-Southern United States, a study was conducted to evaluate four mowing heights (1, 2, 3 and 4 inches) and N fertilization versus no fertilization. During the study, roots were periodically harvested at upper (0–3 inches) and lower (3–6 inches) soil depths, and roots were analyzed for architecture which included root length (RL) and surface area (SA), and root weight (RW). In July, plant-soil …

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Phytochemical Profiling And Bioactive Potential Of Grape Seed Extract In Enhancing Salinity Tolerance Of Vicia Faba, Doaa E. Elsherif, Fatmah A. Safhi, Prasanta K. Subudhi, Abdelghany S. Shaban, Mai A. El-Esawy, Asmaa M. Khalifa Jun 2024

Phytochemical Profiling And Bioactive Potential Of Grape Seed Extract In Enhancing Salinity Tolerance Of Vicia Faba, Doaa E. Elsherif, Fatmah A. Safhi, Prasanta K. Subudhi, Abdelghany S. Shaban, Mai A. El-Esawy, Asmaa M. Khalifa

Faculty Publications

Salinity stress poses a significant threat to crop productivity worldwide, necessitating effective mitigation strategies. This study investigated the phytochemical composition and potential of grape seed extract (GSE) to mitigate salinity stress effects on faba bean plants. GC–MS analysis revealed several bioactive components in GSE, predominantly fatty acids. GSE was rich in essential nutrients and possessed a high antioxidant capacity. After 14 days of germination, GSE was applied as a foliar spray at different concentrations (0, 2, 4, 6, and 8 g/L) to mitigate the negative effects of salt stress (150 mM NaCl) on faba bean plants. Foliar application of 2–8 …

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Nutritive Value And Forage Accumulation Of A Black Oat Germplasm In The Northeastern United States, David M. Jaramillo, Kathy Soder, Ann Blount, Jose C.B. Dubeux, Stephen Harrison Jun 2024

Nutritive Value And Forage Accumulation Of A Black Oat Germplasm In The Northeastern United States, David M. Jaramillo, Kathy Soder, Ann Blount, Jose C.B. Dubeux, Stephen Harrison

Faculty Publications

Black oat (Avena strigosa Schreb.) might be an attractive forage species in the northeastern United States, since it is generally more heat tolerant and disease resistant than other cool-season grasses. Black oat is currently recommended for fall and winter production in USDA Plant Hardiness ones 8b–10a, which is beyond the northeastern United States (Zones 2a–6a). The objective was to evaluate 10 black oat breeding lines (referred to as “UF1” through “UF10”) for forage accumulation, crude protein (CP), neutral detergent fiber (aNDF), acid detergent fiber (ADF), and in vitro digestible organic matter (IVDOM) concentrations. The experiment was carried out in April–July …

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Gestational Diabetes Mellitus And Postpartum Hypertension: Evidence For A Tight Linkage Toward Women's Cardiovascular Health, Yun Shen, Gang Hu Jun 2024

Gestational Diabetes Mellitus And Postpartum Hypertension: Evidence For A Tight Linkage Toward Women's Cardiovascular Health, Yun Shen, Gang Hu

Population and Public Health Science Faculty Publications

No abstract provided.

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Impact Of Low-Load Resistance Exercise With And Without Blood Flow Restriction On Muscle Strength, Endurance, And Oxidative Capacity: A Pilot Study, Brett H. Davis, James E. Stampley, Joshua Granger, Matthew C. Scott, Timothy D. Allerton, Neil M. Johannsen, Guillaume Spielmann, Brian A. Irving Jun 2024

Impact Of Low-Load Resistance Exercise With And Without Blood Flow Restriction On Muscle Strength, Endurance, And Oxidative Capacity: A Pilot Study, Brett H. Davis, James E. Stampley, Joshua Granger, Matthew C. Scott, Timothy D. Allerton, Neil M. Johannsen, Guillaume Spielmann, Brian A. Irving

Clinical Research Faculty Publications

Low-load resistance exercise (LLRE) to failure can increase muscle mass, strength, endurance, and mitochondrial oxidative capacity (OXPHOS). However, the impact of adding blood flow restriction to low-load resistance exercise (LLBFR) when matched for volume on these outcomes is incompletely understood. This pilot study examined the impact of 6 weeks of single-legged LLBFR and volume-matched LLRE on thigh bone-free lean mass, strength, endurance, and mitochondrial OXPHOS. Twenty (12 males and 8 females) untrained young adults (mean ± SD; 21 ± 2 years, 168 ± 11 cm, 68 ± 12 kg) completed 6 weeks of either single-legged LLBFR or volume-matched LLRE. Participants …

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Top-Down Control Of Ammonia Oxidizers By Grazing In The North Pacific, Silin Ni, Min Nina Xu, Moge Du, Edward A. Laws, Shuh Ji Kao May 2024

Top-Down Control Of Ammonia Oxidizers By Grazing In The North Pacific, Silin Ni, Min Nina Xu, Moge Du, Edward A. Laws, Shuh Ji Kao

Faculty Publications

The impact of grazing pressure on ammonia oxidizers (AO) has never been quantified in the field. Here we develop a new method to quantify the grazing rates on AO in aquatic systems. We introduce 15NH4+ tracer into the traditional dilution experiments to measure AO's apparent growth rates by using the end-product of 15NH4+ oxidation, that is, 15NOx−. Field studies in the North Pacific revealed that 15NOx− in the end-product was sensitive enough to detect AO's grazing rates. Experiments from the lower euphotic zone showed NH4+ replete growth rates of 0.40 …

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Farmer's Adaptive Capacity And Adoption Of Strategies To Climate Change Among Mountain Communities In Nepal, Tanvir Hossain May 2024

Farmer's Adaptive Capacity And Adoption Of Strategies To Climate Change Among Mountain Communities In Nepal, Tanvir Hossain

LSU Master's Theses

Climate change presents significant challenges to agriculture worldwide, particularly where farming is central to livelihoods. This phenomenon has been linked to decreasing crop yields due to rising temperatures and reduced rainfall, particularly affecting low-income countries with limited adaptive capabilities. Grasping how farmers perceive climate change is essential for developing effective adaptation strategies to lessen its adverse impacts. This study concentrated on investigating the perceptions and adaptive strategies employed by smallholder farmers in Nepal's Mustang district, utilizing primary data sources. Data from 131 randomly selected households were gathered through structured interviews, while focus group discussions provided qualitative insights into farmers' views …

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The Influence Of Stage Of Ripeness On Consumer Perceptions Regarding Selected Aspects Of Non-Astringent Asian Persimmons (Diospyros Kaki Thunb), Robert A. Mirabello Jr May 2024

The Influence Of Stage Of Ripeness On Consumer Perceptions Regarding Selected Aspects Of Non-Astringent Asian Persimmons (Diospyros Kaki Thunb), Robert A. Mirabello Jr

LSU Doctoral Dissertations

Asian Persimmon (Diospyros kaki Thunb.) is an important fruit crop in Asia and in recent decades has experienced expanding production around the world. Non-astringent cultivars are highly desirable in world markets. In the United States the Asian Persimmon is lesser known and consumed although it can be successfully grown in California and the Southeastern United States.This novel study examined the physical/chemical properties of the non-astringent Asian Persimmon ‘Jiro’ grown in Southern Louisiana at three distinct stages of ripeness described as Green (mid-September harvest), Light Orange (mid-October harvest) and Dark Orange (mid-November harvest). Data collected included color, weight, size, soluble …

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Pregnant Black Bodies In Peril: A Multi-Method Analysis Of Obstetric Outcomes And Gestational Experiences, Courtney E. Williams May 2024

Pregnant Black Bodies In Peril: A Multi-Method Analysis Of Obstetric Outcomes And Gestational Experiences, Courtney E. Williams

LSU Doctoral Dissertations

My multi-method three-paper dissertation provides a better understanding of the relationship between maternal racial identity, obstetric outcomes, and gestational experiences. Using birth certificate data from the 2016 U.S. National Vital Statistics System and binary logistic regression models, in the first paper I explore heterogeneity in severe maternal morbidity (SMM) by maternal race, maternal education, and maternal age. To complement the first paper, in the second paper I allow 35 Black and White women/birthing people to describe pregnancy, birth, and early motherhood in their own words. I situate the Covid-19 pandemic as a unique cultural backdrop in this qualitative paper to …

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