Biochemical Phenomena, Metabolism, and Nutrition Commons^™

The Role Of Top-Down Appetite Self-Regulation In The Development Of Healthy Eating Behaviors Among Children: A Narrative Review And Socialization Framework, David J Bridgett, Sheryl O Hughes, Matthew Broussard, Daniela Mccourt, Christina M Croce, Jennifer O Fisher

Faculty, Staff and Students Publications

Appetite self-regulation (ASR) among children is thought to have a fundamental role in shaping the development of healthy eating behaviors, dietary intake, and growth during childhood. Parallel to developmental frameworks for understanding "general" self-regulation among children, ASR has been described as involving children's use of "top-down" cognitive processes to moderate "bottom-up" biological drives around food approach and avoidance in the interest of achieving desired eating behaviors or outcomes. Whereas bottom-up ASR processes during early childhood are well characterized, particularly in the context of dysregulation and obesity risk, the role of top-down ASR processes in the development of healthy eating behaviors …

“Shaking The Ladder” Reveals How Analytic Choices Can Influence Associations In Nutrition Epidemiology: Beef Intake And Coronary Heart Disease As A Case Study, Colby J Vorland, Lauren E O'Connor, Beate Henschel, Cuiqiong Huo, James M Shikany, Carlos A Serrano, Robert Henschel, Stephanie L Dickinson, Keisuke Ejima, Aurelian Bidulescu, David B Allison, Andrew W Brown

Children’s Nutrition Research Center Staff Publications

Nutrition epidemiological models involve many analytic decisions, such as defining exposures, selecting which covariates to include, or configuring variables in different ways. We explored the impact of analytical decisions on conclusions in nutrition epidemiology using self-reported beef intake and incident coronary heart disease as a case study. We used REasons for Geographic and Racial Differences in Stroke (REGARDS) data, and selected covariates and their configurations from published literature to recapitulate common models used to assess associations between meat intake and health outcomes. Three model sets were designed: sets one and two used continuous and quintile-defined beef intakes, respectively, each with …

Insulinemic And Inflammatory Dietary Patterns And Colorectal Cancer Risk: A Dietary Data Harmonization Study Of One Million Participants In The Consortium Of Metabolomics Studies (Comets), Ni Shi, Rachel Hoobler, Rhea Harewood, Amanda E Toland, Demetrius Albanes, Emmanouil Bouras, Marc J Gunter, Linda M Liao, Steven C Moore, Fulvio Ricceri, Jerome I Rotter, Rashmi Sinha, Rachael Stolzenberg-Solomon, Anne Tjønneland, Alexis C Wood, Danxia Yu, Mary C Playdon, Fred K Tabung

Children’s Nutrition Research Center Staff Publications

Background: Inflammatory and insulinemic dietary patterns have been associated with colorectal cancer (CRC) risk, but generalizability across diverse populations with heterogeneous food supplies and dietary behaviors has not been established.

Objectives: We harmonized disparate dietary and covariate data on a large scale to compute the reverse Empirical Dietary Index for Hyperinsulinemia (rEDIH), reverse Empirical Dietary Inflammatory Pattern (rEDIP), and Healthy Eating Index (HEI)-2015 scores, and tested their associations with CRC risk.

Methods: We leveraged data among 501,892 women and 407,390 men from 6 cohorts across the United States (NIH-AARP, Multi-Ethnic Study of Atherosclerosis, Prostate, Lung, Colorectal, and Ovarian, SCCS) and …

Sleep-Disordered Breathing Subtypes And Future Diet Quality In The Multi-Ethnic Study Of Atherosclerosis, Kaitlin S Potts, Cecilia Castro-Diehl, Tianyi Huang, Alexis C Wood, Jerome I Rotter, Stephen S Rich, Tamar Sofer, Susan Redline, Heming Wang

Children’s Nutrition Research Center Staff Publications

Objectives: Sleep-disordered breathing (SDB) and diet quality impact cardiometabolic disease, but few studies have examined if SDB influences diet quality. This study estimated the association between SDB subtypes (with and without sleepiness) and future diet quality in the Multi-Ethnic Study of Atherosclerosis.

Methods: Probable SDB was characterized by self-reported physician-diagnosed sleep apnea (PDSA) or habitual snoring and subtyped by presence or absence of sleepiness. A food frequency questionnaire measured diet 1.6 years before, and 7.8 years after SDB assessment. Diet quality was measured with the Alternate Healthy Eating Index-2010 (AHEI). Mean differences in AHEI at follow-up by SDB subtypes were …

The Overlooked Impact Of Background Diet And Adherence In Nutrition Trials, Javier I Ottaviani, Hagen Schroeter, Dennis M Bier, John W Erdman, Howard D Sesso, Joann E Manson, Gunter G C Kuhnle

Children’s Nutrition Research Center Staff Publications

Randomised controlled trials in nutrition (RCTN) face unique challenges, including the considerable influence of the background diet and the challenge of assuring intervention adherence by participants. The impact of these factors on the outcome of RCTNs has been difficult to quantify, but nutritional biomarkers represent a valuable tool to address these challenges. Using flavanols as a model dietary intervention and a set of recently validated flavanol biomarkers, we here investigated the impact of background diet and adherence on the outcomes of a subcohort of the COcoa Supplement and Multivitamin Outcomes Study (COSMOS, NCT 02422745). We found that 20% of participants …

Functional Regulation Of Macrophages By Ces1d-Mediated Lipid Signaling In Immunometabolism, Long J Shao, Fathima Elizondo, Feng Gao, Rabie Habib, Xin Li, Katherine Pham, Jazmin Ysaguirre, Maryam Elizondo, Shirindokht Shirazi, Kristin L Eckel-Mahan, Sean Hartig, Huaizhu Wu, Kai Sun

Faculty, Staff and Student Publications

Objective: Macrophage accumulation in metabolically active tissues during obesity is common in both animals and humans, but the lipid signaling mechanisms that trigger macrophage inflammation remain unclear. This study investigates the role of Ces1d, an unconventional lipase, in regulating macrophage inflammation under nutritional stress.

Methods: A myeloid-specific Ces1d knockout (LysM-Cre-Ces1d floxed/floxed, KO) mouse model was used for the studies. For in vitro tests, bone marrow-derived macrophages (BMDMs) from control (Ces1d floxed/floxed, WT) and KO mice were assessed for migration, polarization, and activation. For in vivo experiments, WT and KO mice were induced to obesity via a high-fat diet (HFD) and …

The Joint Association Of Diet Quality And Sleep Regularity With Incident Cardiovascular Disease In The Multi-Ethnic Study Of Atherosclerosis, Kaitlin S Potts, Claire Veldkamp, Alexis C Wood, Erin D Michos, Raymond Noordam, Tianyi Huang, Susan Redline, Heming Wang

Children’s Nutrition Research Center Staff Publications

Background/objectives: Diet quality and sleep regularity both influence cardiovascular disease (CVD) risk and may influence each other, but there is scarce evidence for their joint or interacting associations in relation to CVD. We assessed these associations in the Multi-Ethnic Study of Atherosclerosis (MESA).

Methods: Participants free of CVD with valid diet and sleep measures in 2010-2013 were included and followed through 2020 for detection of incident CVD (188 events detected over 8.8 years among 1782 participants; 55% women). Sleep timing and duration regularity were assessed via the intra-individual SD of sleep onset time and duration across 5- to 7-day actigraphy. …

The Small Gtpase Rap1 In Pomc Neurons Regulates Leptin Actions And Glucose Metabolism, Kentaro Kaneko, Weisheng Lu, Yong Xu, Alexei Morozov, Makoto Fukuda

Faculty, Staff and Students Publications

The hypothalamic leptin-proopiomelanocortin (POMC) pathway is critical for regulating metabolism. POMC neurons in the arcuate nucleus respond to leptin and play a pivotal role in mediating energy and glucose balance. However, during diet-induced obesity (DIO), these neurons often develop resistance to exogenous leptin. Recently, the small GTPase Rap1 has been implicated as an inhibitor of neuronal leptin signaling; however, its specific role within POMC neurons remains unexplored. We generated tamoxifen-inducible, POMC neuron-specific Rap1 knockout mice to selectively delete both Rap1a and Rap1b isoforms in POMC neurons. By analyzing these mice through metabolic phenotyping, immunohistochemistry, and biochemical assays, we show that …

Exploring Profiles Of Fathers Integrating Food And Physical Activity Parenting Practices, John A Jimenez-Garcia, Louise C Mâsse, Robert L Newton, Salma M Musaad, Alicia Beltran, Teresia M O'Connor

Children’s Nutrition Research Center Staff Publications

Objective: This study aims to identify fathers' profiles integrating food parenting practices (FPP) and physical activity parenting practices (PAPP).

Design: We analysed cross-sectional data. The fathers completed the reduced FPP and PAPP item banks and socio-demographic and family dynamics (co-parenting and household responsibility) questionnaires. We identified fathers' profiles via latent profile analysis. We explored the influence of social determinants, child characteristics and family dynamics on fathers' profiles using multinomial logistic regression.

Setting: Online survey in the USA.

Participants: Fathers of 5-11-year-old children.

Results: We analysed data from 606 fathers (age = 38 ± 8·0; Hispanic = 37·5 %). Most fathers …

Cardiometabolic Benefits Of A Non-Industrialized-Type Diet Are Linked To Gut Microbiome Modulation, Fuyong Li, Anissa M. Armet, Katri Korpela, Junhong Liu, Rodrigo Margain Quevedo, Francesco Asnicar, Benjamin Seethaler, Tianna B. S. Rusnak, Janis L. Cole, Zhihong Zhang, Shuang Zhao, Adele Gagnon, Edward C. Deehan, Joao F. Mota, Jeffrey A. Bakal, Russell Greiner, Dan Knights, Nicola Segata, Stephan C. Bischoff, Laurie Mereu, Andrea M. Haqq, Catherine J. Field, Liang Li, Carla M. Prado, Jens Walter

Department of Food Science and Technology: Faculty Publications

Industrialization adversely affects the gut microbiome and predisposes individuals to chronic non-communicable diseases. We tested a microbiome restoration strategy comprising a diet that recapitulated key characteristics of non-industrialized dietary patterns (restore diet) and a bacterium rarely found in industrialized microbiomes (Limosilactobacillus reuteri) in a randomized controlled feeding trial in healthy Canadian adults. The restore diet, despite reducing gut microbiome diversity, enhanced the persistence of L. reuteri strain from rural Papua New Guinea (PB-W1) and redressed several microbiome features altered by industrialization. The diet also beneficially altered microbiota-derived plasma metabolites implicated in the etiology of chronic non-communicable diseases. Considerable …

Red Meat Consumption And Hypertension: An Updated Review, Tara S Allen, Michael Najem, Alexis C Wood, Danielle J Lee, Lorena S Pacheco, Lori B Daniels, Matthew A Allison

Faculty, Staff and Students Publications

PURPOSE OF REVIEW: Hypertension (HTN) is a major risk factor for cardiovascular diseases (CVD). The global prevalence of HTN and related CVD mortality continues to rise. The development of HTN is influenced by genetic predisposition and modifiable risk factors, including diet. One area of ongoing debate is the relationship between red meat consumption and risk of HTN.

RECENT FINDINGS: Processed red meat has become increasingly implicated in the pathogenesis and morbidity of HTN, though randomized control trials comparing HTN-related outcomes associated with red meat subtypes have yielded heterogenous results. This review summarizes the existing relevant literature and highlights the methodological …

Sex Differences In Response To Diet Enriched With Glutathione Precursors In The Aging Heart, Aude Angelini, Grecia Garcia Marquez, Anna Malovannaya, Marta L Fiorotto, Alexander Saltzman, Antrix Jain, Joann Trial, George E Taffet, Katarzyna A Cieslik

Faculty, Staff and Students Publications

Common features of the aging heart are dysregulated metabolism, inflammation, and fibrosis. Elevated oxidative stress is another hallmark of cardiac aging that can exacerbate each of these conditions. We hypothesize that by increasing natural antioxidant levels (glutathione), we will improve cardiac function. Twenty-one-month-old mice were fed glycine and N-acetyl cysteine (GlyNAC; glutathione precursors)-supplemented or control diets for 12 weeks. Heart function was monitored longitudinally, and the exercise performance was determined at the end of the study. We found that the GlyNAC diet was beneficial for old male but not old female mice, leading to an increase of Ndufb8 expression (a …

A Β-Hydroxybutyrate Shunt Pathway Generates Anti-Obesity Ketone Metabolites, Maria Dolores Moya-Garzon, Mengjie Wang, Veronica L Li, Xuchao Lyu, Wei Wei, Alan Sheng-Hwa Tung, Steffen H Raun, Meng Zhao, Laetitia Coassolo, Hashim Islam, Barbara Oliveira, Yuqin Dai, Jan Spaas, Antonio Delgado-Gonzalez, Kenyi Donoso, Aurora Alvarez-Buylla, Francisco Franco-Montalban, Anudari Letian, Catherine P Ward, Lichao Liu, Katrin J Svensson, Emily L Goldberg, Christopher D Gardner, Jonathan P Little, Steven M Banik, Yong Xu, Jonathan Z Long

Children’s Nutrition Research Center Staff Publications

β-Hydroxybutyrate (BHB) is an abundant ketone body. To date, all known pathways of BHB metabolism involve the interconversion of BHB and primary energy intermediates. Here, we identify a previously undescribed BHB secondary metabolic pathway via CNDP2-dependent enzymatic conjugation of BHB and free amino acids. This BHB shunt pathway generates a family of anti-obesity ketone metabolites, the BHB-amino acids. Genetic ablation of CNDP2 in mice eliminates tissue amino acid BHB-ylation activity and reduces BHB-amino acid levels. The most abundant BHB-amino acid, BHB-Phe, is a ketosis-inducible congener of Lac-Phe that activates hypothalamic and brainstem neurons and suppresses feeding. Conversely, CNDP2-KO mice exhibit …

Predictive Equation Derived From 6,497 Doubly Labelled Water Measurements Enables The Detection Of Erroneous Self-Reported Energy Intake, Rania Bajunaid, Chaoqun Niu, Catherine Hambly, Zongfang Liu, Yosuke Yamada, Heliodoro Aleman-Mateo, Liam J Anderson, Lenore Arab, Issad Baddou, Linda Bandini, Kweku Bedu-Addo, Ellen E Blaak, Carlijn V C Bouten, Soren Brage, Maciej S Buchowski, Nancy F Butte, Stefan G J A Camps, Regina Casper, Graeme L Close, Jamie A Cooper, Richard Cooper, Sai Krupa Das, Peter S W Davies, Prasangi Dabare, Lara R Dugas, Simon Eaton, Ulf Ekelund, Sonja Entringer, Terrence Forrester, Barry W Fudge, Melanie Gillingham, Annelies H Goris, Michael Gurven, Asmaa El Hamdouchi, Hinke H Haisma, Daniel Hoffman, Marije B Hoos, Sumei Hu, Noorjehan Joonas, Annemiek M Joosen, Peter Katzmarzyk, Misaka Kimura, William E Kraus, Wantanee Kriengsinyos, Rebecca Kuriyan, Robert F Kushner, Estelle V Lambert, Pulani Lanerolle, Christel L Larsson, William R Leonard, Nader Lessan, Marie Löf, Corby K Martin, Eric Matsiko, Anine C Medin, James C Morehen, James P Morton, Aviva Must, Marian L Neuhouser, Theresa A Nicklas, Christine D Nyström, Robert M Ojiambo, Kirsi H Pietiläinen, Yannis P Pitsiladis, Jacob Plange-Rhule, Guy Plasqui, Ross L Prentice, Susan B Racette, David A Raichlen, Eric Ravussin, Leanne M Redman, John J Reilly, Rebecca Reynolds, Susan B Roberts, Dulani Samaranayakem, Luis B Sardinha, Analiza M Silva, Anders M Sjödin, Marina Stamatiou, Eric Stice, Samuel S Urlacher, Ludo M Van Etten, Edgar G A H Van Mil, George Wilson, Jack A Yanovski, Tsukasa Yoshida, Xueying Zhang, Alexia J Murphy-Alford, Srishti Sinha, Cornelia U Loechl, Amy H Luke, Herman Pontzer, Jennifer Rood, Hiroyuki Sagayama, Dale A Schoeller, Klaas R Westerterp, William W Wong, John R Speakman

Faculty, Staff and Students Publications

Nutritional epidemiology aims to link dietary exposures to chronic disease, but the instruments for evaluating dietary intake are inaccurate. One way to identify unreliable data and the sources of errors is to compare estimated intakes with the total energy expenditure (TEE). In this study, we used the International Atomic Energy Agency Doubly Labeled Water Database to derive a predictive equation for TEE using 6,497 measures of TEE in individuals aged 4 to 96 years. The resultant regression equation predicts expected TEE from easily acquired variables, such as body weight, age and sex, with 95% predictive limits that can be used …

Protein Consumption And Risk Of Cvd Among Us Adults: The Multi-Ethnic Study Of Atherosclerosis (Mesa), Ji Yun Tark, Ruosha Li, Bing Yu, Alexis C Wood, Nikhil S Padhye, Marcia C De Oliveira Otto

Faculty, Staff and Students Publications

BACKGROUND: Although some randomized trials have reported beneficial effects of protein intake on cardiometabolic risk factors, evidence from prospective studies have not supported a strong link between protein intake and cardiovascular disease (CVD) risk. It is also unclear whether diversity in protein intake plays a role in CVD risk.

OBJECTIVE: We investigated prospective associations of (1) protein intake, overall and by food source and (2) diversity of protein sources with risk of CVD, coronary heart disease (CHD), and stroke.

METHODS: In a multi-ethnic cohort of 5879 U.S. adults (45-84 years), who were free of CVD at baseline, protein intake was …

Mechanistic Insights Into Metabolic Function Of Dynamin-Related Protein 1, Xin Li, Katherine Pham, Jazmin Ysaguirre, Iqbal Mahmud, Lin Tan, Bo Wei, Long J Shao, Maryam Elizondo, Rabie Habib, Fathima Elizondo, Hiromi Sesaki, Philip L Lorenzi, Kai Sun

Faculty, Staff and Student Publications

Dynamin-related protein 1 (DRP1) plays crucial roles in mitochondrial and peroxisome fission. However, the mechanisms underlying the functional regulation of DRP1 in adipose tissue during obesity remain unclear. To elucidate the metabolic and pathological significance of diminished DRP1 in obese adipose tissue, we utilized adipose tissue-specific DRP1 KO mice challenged with a high-fat diet. We observed significant metabolic dysregulations in the KO mice. Mechanistically, DRP1 exerts multifaceted functions in mitochondrial dynamics and endoplasmic reticulum (ER)-lipid droplet crosstalk in normal mice. Loss of function of DRP1 resulted in abnormally giant mitochondrial shapes, distorted mitochondrial membrane structure, and disrupted cristae architecture. Meanwhile, …

Community-Based Participatory Obesity Prevention Interventions In Rural Communities: A Scoping Review, Saagar Dhanjani, Haley Allen, Beatriz Varman, Chishinga Callender, Jayna M Dave, Debbe Thompson

Library Staff Publications

Child obesity is a worldwide public health concern. In America, children from rural areas have greater odds of obesity in comparison to those from urban areas. Community-engaged research is important for all communities, particularly under-represented communities. This paper reports the results of a scoping review investigating community-engaged research in obesity prevention programs tested with school-aged children in rural America. A literature search of Medline Ovid was conducted to identify interventions reporting the results of obesity prevention interventions that promoted a healthy diet or physical activity (PA) behaviors to school-age children in rural communities of the United States (US). After title …

Mediterranean Diet Information On Tiktok And Implications For Digital Health Promotion Research: Social Media Content Analysis, Margaret Raber, Haley Allen, Sophia Huang, Maria Vazquez, Echo Warner, Debbe Thompson

Children’s Nutrition Research Center Staff Publications

Background: The Mediterranean diet has been linked to reduced risk for several cardiometabolic diseases. The lack of a clear definition of the Mediterranean diet in the scientific literature and the documented proliferation of nutrition misinformation on the internet suggest the potential for confusion among consumers seeking web-based Mediterranean diet information.

Objective: We conducted a social media content analysis of information about the Mediterranean diet on the influential social media platform, TikTok, to examine public discourse about the diet and identify potential areas of misinformation. We then analyzed these findings in the context of health promotion to identify potential challenges and …

Impact Of Sustained Calorie Restriction And Weight Cycling On Body Composition In High-Fat Diet-Fed Male And Female C57bl/6j Mice, Daniel L Smith, Yongbin Yang, Luis M Mestre, Beate Henschel, Erik Parker, Stephanie Dickinson, Amit Patki, David B Allison, Tim R Nagy

Children’s Nutrition Research Center Staff Publications

Objective: The objective of this study was to investigate body composition changes with weight cycling (WC) among adult C57BL/6J mice with diet-induced obesity.

Methods: A total of 555 single-housed mice were fed a high-fat diet ad libitum (AL) from 8 to 43 weeks of age. The 200 heaviest mice of each sex were randomized to the following four groups: ever obese (EO, continued AL feeding); obese weight loser (OWL, calorie-restricted); obese weight loser moderate (OWLM, body weight halfway between EO and OWL); and WC (diet restricted to OWL followed by AL refeeding cycles). Body weight and composition data were collected. …

Regional Variability In The Prevalence Of Food Insecurity And Diet Quality Among United States Children, Jayna M Dave, Tzuan A Chen, Alexandra N Castro, Mamie White, Elizabeth A Onugha, Sloane Zimmerman, Debbe Thompson

Children’s Nutrition Research Center Staff Publications

Understanding the association between food security status (FSS) and diet quality in children is crucial. This study investigated regional variability in FSS, participation in the federal nutrition assistance program (FNAP), and diet quality among US children. National Health and Nutrition Examination Survey (NHANES) data from 2013 to 2016 were analyzed. The association between FSS, FNAP participation, and diet quality (Healthy Eating Index—HEI-2015) was assessed using multiple linear/logistic regression models. The sample included 6403 children (mean age: 7.5 years; 51% male; 33% Hispanic). Within the sample, 13% reported child food insecurity, and 30% reported household food insecurity. Additionally, 90% participated in …

Nutritional Importance Of Animal-Sourced Foods In A Healthy Diet, Sydney Sheffield, Marta L Fiorotto, Teresa A Davis

Faculty, Staff and Students Publications

Animal-sourced foods, such as meats, poultry, eggs, milk, and fish are nutrient-dense foods that are rich sources of protein, essential amino acids, and micronutrients that can be challenging to obtain solely through plant-based foods. Animal-sourced protein foods provide crucial nutrients that support the growth and development in children, maintenance of muscle mass and function in adults, gain in muscle mass and strength in exercising individuals, and mitigation of sarcopenia in the elderly. The 2020–2025 Dietary Guidelines for Americans have identified the important role of animal-sourced foods in the diet at every stage of life. Animal-sourced foods are consumed worldwide and …

Diet-Stimulated Marrow Adiposity Fails To Worsen Early, Age-Related Bone Loss, Cody Mcgrath, Sarah E Little-Letsinger, Gabriel M Pagnotti, Buer Sen, Zhihui Xie, Gunes Uzer, Guniz B Uzer, Xiaopeng Zong, Martin A Styner, Janet Rubin, Maya Styner

Faculty, Staff and Student Publications

Introduction: Longitudinal effect of diet-induced obesity on bone is uncertain. Prior work showed both no effect and a decrement in bone density or quality when obesity begins prior to skeletal maturity. We aimed to quantify long-term effects of obesity on bone and bone marrow adipose tissue (BMAT) in adulthood.

Methods: Skeletally mature, female C57BL/6 mice (n = 70) aged 12 weeks were randomly allocated to low-fat diet (LFD; 10% kcal fat; n = 30) or high-fat diet (HFD; 60% kcal fat; n = 30), with analyses at 12, 15, 18, and 24 weeks (n = 10/group). Tibial microarchitecture was analyzed …

Variant Of The Lactase Lct Gene Explains Association Between Milk Intake And Incident Type 2 Diabetes, Kai Luo, Guo-Chong Chen, Yanbo Zhang, Jee-Young Moon, Jiaqian Xing, Brandilyn A Peters, Mykhaylo Usyk, Zheng Wang, Gang Hu, Jun Li, Elizabeth Selvin, Casey M Rebholz, Tao Wang, Carmen R Isasi, Bing Yu, Rob Knight, Eric Boerwinkle, Robert D Burk, Robert C Kaplan, Qibin Qi

Faculty, Staff and Student Publications

Cow's milk is frequently included in the human diet, but the relationship between milk intake and type 2 diabetes (T2D) remains controversial. Here, using data from the Hispanic Community Health Study/Study of Latinos, we show that in both sexes, higher milk intake is associated with lower risk of T2D in lactase non-persistent (LNP) individuals (determined by a variant of the lactase LCT gene, single nucleotide polymorphism rs4988235 ) but not in lactase persistent individuals. We validate this finding in the UK Biobank. Further analyses reveal that among LNP individuals, higher milk intake is associated with alterations in gut microbiota (for …

Design, Analysis, And Interpretation Of Treatment Response Heterogeneity In Personalized Nutrition And Obesity Treatment Research, Roger S Zoh, Bridget H Esteves, Xiaoxin Yu, Amanda J Fairchild, Ana I Vazquez, Andrew G Chapple, Andrew W Brown, Brandon George, Derek Gordon, Douglas Landsittel, Gary L Gadbury, Greg Pavela, Gustavo De Los Campos, Luis M Mestre, David B Allison

Children’s Nutrition Research Center Staff Publications

It is increasingly assumed that there is no one-size-fits-all approach to dietary recommendations for the management and treatment of chronic diseases such as obesity. This phenomenon that not all individuals respond uniformly to a given treatment has become an area of research interest given the rise of personalized and precision medicine. To conduct, interpret, and disseminate this research rigorously and with scientific accuracy, however, requires an understanding of treatment response heterogeneity. Here, we define treatment response heterogeneity as it relates to clinical trials, provide statistical guidance for measuring treatment response heterogeneity, and highlight study designs that can quantify treatment response …

Associations Between Avocado Intake And Measures Of Glucose And Insulin Homeostasis In Hispanic Individuals With And Without Type 2 Diabetes: Results From The Hispanic Community Health Study/Study Of Latinos (Hchs/Sol), Mackenzie K Senn, Mark O Goodarzi, Gautam Ramesh, Matthew A Allison, Mariaelisa Graff, Kristin L Young, Gregory A Talavera, Amanda C Mcclain, Tanya P Garcia, Jerome I Rotter, Alexis C Wood

Faculty, Staff and Students Publications

BACKGROUND AND AIMS: To investigate associations between avocado intake and glycemia in adults with Hispanic/Latino ancestry.

METHODS AND RESULTS: The associations of avocado intake with measures of insulin and glucose homeostasis were evaluated in a cross-sectional analysis of up to 14,591 Hispanic/Latino adults, using measures of: average glucose levels (hemoglobin A1c; HbA1c), fasting glucose and insulin, glucose and insulin levels after an oral glucose tolerance test (OGTT), and calculated measures of insulin resistance (HOMA-IR, and HOMA-%β), and insulinogenic index. Associations were assessed using multivariable linear regression models, which controlled for sociodemographic factors and health behaviors, and which were stratified by …

See Me, Hear Me, Know Me: Perspectives On Diet And Physical Activity Influences Among Teens Living In Rural Texas Communities, Debbe Thompson, Julie Miranda, Chishinga Callender, Jayna M Dave, Godlove Appiah, Salma M A Musaad

Faculty, Staff and Students Publications

Teens in rural communities are at greater risk of obesity than teens in urban areas. Diet and physical activity influence obesity risk. Understanding their perspectives is an important step in intervention design. This qualitative investigation explored teen perspectives on how living in a rural community influenced their diet and physical activity choices. Forty parent-teen pairs were recruited. Data collection included surveys and telephone interviews. This paper reports teen perspectives identified in the first interview. Thematic analysis was used to code and analyze the data. Findings revealed that the primary factor driving teens' diet and physical activity behaviors was the teens …

A Qualitative Study On Parenting Practices To Sustain Adolescent Health Behaviors In American Indian Families, Christine Hodgson, Dylan Decker, Teresia M O'Connor, Melanie Hingle, Francine C Gachupin

Children’s Nutrition Research Center Staff Publications

American Indian (AI) adolescents who practice healthy behaviors of sleep, nutrition, physical activity, and limited screen time can lower their lifetime risk of diet-sensitive disease. Little is known about how AI parenting practices influence the health behaviors of youth. The objective of this qualitative study was to explore how a group of AI parents of youths at risk of disease influenced their youth’s health behaviors after a family intervention. A secondary objective was to understand the role of AI parents in supporting and sustaining health behavior change in their youths following the intervention. Semi-structured in-depth interviews were conducted with AI …

Examining Potential Modifiers Of Human Skin And Plasma Carotenoid Responses In A Randomized Trial Of A Carotenoid-Containing Juice Intervention, Stephanie B Jilcott Pitts, Qiang Wu, Nancy E Moran, Melissa N Laska, Lisa Harnack

Children’s Nutrition Research Center Staff Publications

Background: Skin carotenoid measurements are emerging as a valid and reliable indicator of fruit and vegetable intake and carotenoid intake. However, little is known about the extent to which skin carotenoid responsivity to dietary changes differs based on demographic and physiologic characteristics.

Objectives: This study examined potential effect modifiers of skin carotenoid and plasma carotenoid responses to a carotenoid-rich juice intervention.

Methods: We leveraged data from 2 arms of a 3-site randomized controlled trial of a carotenoid-containing juice intervention (moderate dose = 6 ounces juice, 4 mg total carotenoids/d, high dose = 12 ounces juice, 8 mg total carotenoids/d) (n …

Untargeted Metabolomic Analysis Investigating Links Between Unprocessed Red Meat Intake And Markers Of Inflammation, Alexis C Wood, Goncalo Graca, Meghana Gadgil, Mackenzie K Senn, Matthew A Allison, Ioanna Tzoulaki, Philip Greenland, Timothy Ebbels, Paul Elliott, Mark O Goodarzi, Russell Tracy, Jerome I Rotter, David Herrington

Faculty, Staff and Students Publications

BACKGROUND: Whether red meat consumption is associated with higher inflammation or confounded by increased adiposity remains unclear. Plasma metabolites capture the effects of diet after food is processed, digested, and absorbed, and correlate with markers of inflammation, so they can help clarify diet-health relationships.

OBJECTIVE: To identify whether any metabolites associated with red meat intake are also associated with inflammation.

METHODS: A cross-sectional analysis of observational data from older adults (52.84% women, mean age 63 ± 0.3 y) participating in the Multi-Ethnic Study of Atherosclerosis (MESA). Dietary intake was assessed by food-frequency questionnaire, alongside C-reactive protein (CRP), interleukin-2, interleukin-6, fibrinogen, …

Metabolomic Profile Of The Healthy Eating Index-2015 In The Multiethnic Study Of Atherosclerosis, Meghana D Gadgil, Alexis C Wood, Ibrahim Karaman, Goncalo Graça, Ioanna Tzoulaki, Victor W Zhong, Philip Greenland, Alka M Kanaya, David M Herrington

Children’s Nutrition Research Center Staff Publications

Background: Poor diet quality is a risk factor for type 2 diabetes and cardiovascular disease. However, knowledge of metabolites marking adherence to Dietary Guidelines for Americans (2015 version) are limited.

Objectives: The goal was to determine a pattern of metabolites associated with the Healthy Eating Index (HEI)-2015, which measures adherence to the Dietary Guidelines for Americans.

Methods: The analysis examined 3557 adult men and women from the longitudinal cohort Multiethnic Study of Atherosclerosis (MESA), without known cardiovascular disease and with complete dietary data. Fasting serum specimens and diet and demographic questionnaires were assessed at baseline. Untargeted 1H 1-dimensional nuclei magnetic …