Dietetics and Clinical Nutrition Commons^™

Nutrinews: April, 2021, Department Of Nutrition And Dietetics, University Of North Florida

NutriNews

This issue features Shopping in Season: Cauliflower, Intuitive Eating, Easy Ways to Move more and sit less, Cool it down: The correct way to cool food for safe consumption, The Lunch Box: Watermelon Sugar

Meal-Induced Symptoms In Children With Dyspepsia-Relationships To Sex And The Presence Of Gastroparesis, Liz Febo-Rodriguez, Bruno P Chumpitazi, Salma Musaad, Andrew C Sher, Robert J Shulman

Children’s Nutrition Research Center Staff Publications

Objectives: To test the hypothesis that in children with dyspepsia, prospective symptom severity following ingestion of a meal would correlate with percent gastric retention, and those ultimately diagnosed with gastroparesis would report worse symptoms.

Study design: Prospective, single-center study with 104 children with dyspepsia completing a prospective dyspepsia symptom questionnaire before and after eating a standardized Tougas meal during gastric emptying scintigraphy. Main outcomes included correlation between gastric retention and symptoms and comparison of symptom severity between those with and without gastroparesis.

Results: Fifty-two children (50%) had gastroparesis (gastroparesis: 12.5 ± 2.9 years, 65% female; nongastroparesis: 13.0 ± 2.9 years, …

The Importance Of Nutrition And Preventing Malnutrition In Older Adults: A Literature Review And Informational Booklet, Sophie Johnson

Honors Program: Senior Projects (Public)

Over years of studying nutrition science and gerontology, there was very little information in classes that combined these two important topics. Older adults are often classified as those above the age of 65 years old. There is a growing number of older adults in the United States, which increases the need for information on how nutrition and aging are interlaced. As humans age, multiple factors can impact nutrition. Nutrition involves consuming the proper amount of nutrients to maintain body function. There are physiological, physical, socioeconomic and medication factors that can all influence nutrition status. It is important to be aware …

Substitution Of Kudzu Starch For Cornstarch Results In Dairy-Based Vanilla Pudding With Similar Texture And Consumer Acceptability, Carissa D. Ingram

Honors College Theses

Kudzu, also known as kuzu, is a rapidly growing, vine invasive in the Southeastern United States following introduction for soil erosion control in the late 19th century. Native to Southeastern Asia, its roots are rich in starch which has been used in traditional Eastern cuisine as a sauce thickener. Use of kudzu starch in Western cuisine is limited. This study compared the consistency, percent sag, and consumer acceptability of whole milk vanilla pudding prepared with kudzu starch to vanilla pudding prepared with cornstarch, a more commonly used thickening agent in the United States (control). The consistency (Bostwick Consistometer; 50°C) and …

Selective Induction Of Apoptosis By Aqueous Extract Of Chinese Medicinal Herb Scutellaria Barbata In Hct-116 Colon Cancer Cells And Ccd-841 Colon Epithelial Cells., Camile Kordas, Joshua Li, Kristin Ferrer

Honors Scholars & Undergraduate Research Poster Symposium Programs

Scutellaria barbata (SB) has been used in traditional Chinese medicine for treating liver, lung and rectal tumors. We previously found that aqueous extracts of SB inhibited mutagenesis, DNA binding, and metabolism of aflatoxin B1 and benzo(a)pyrene. They were also shown to inhibit foci formation in the colon of AOM-induced mice. Other research demonstrated that ethanol extracts inhibit colorectal cancer growth, inhibit proliferation and induce apoptosis. In this study, the effects of aqueous extracts of SB on the induction and modulation of apoptosis in HCT-116 colon cancer cells and CCD-841 normal colon epithelial cells were assessed using TUNEL assay, Apoptosis/Necrosis Detection …

March 2021, Swosu Bulldog Wellness Committee

SWOSU BULLDOG WELLNESS

March is National Nutrition Month! What's on YOUR plate?

An Arabidopsis Oxalyl-Coa Decarboxylase, Atoxc, Is Important For Oxalate Catabolism In Plants, Justin Foster, Ninghui Cheng, Vincent Paris, Lingfei Wang, Jin Wang, Xiaoqiang Wang, Paul A Nakata

Children’s Nutrition Research Center Staff Publications

Considering the widespread occurrence of oxalate in nature and its broad impact on a host of organisms, it is surprising that so little is known about the turnover of this important acid. In plants, oxalate oxidase is the most well-studied enzyme capable of degrading oxalate, but not all plants possess this activity. Recently, acyl-activating enzyme 3 (AAE3), encoding an oxalyl-CoA synthetase, was identified in Arabidopsis. This enzyme has been proposed to catalyze the first step in an alternative pathway of oxalate degradation. Since this initial discovery, this enzyme and proposed pathway have been found to be important to other plants …

There's An App For That: Promoting Health App Use In Rural Ireland, Noor Yahya, Marcus Simon

Undergraduate Research Symposium

Problem Statement: Smartphones and mobile applications (commonly referred to as apps) were first introduced in the late 20th century and early 21st century. Due to the public’s time constraints, lack of transportation, lack of medical insurance, and a growing desire for healthier lifestyles, the total global mHealth market forecast to reach 100 billion dollars in 2021 – a fivefold increase from 21 billion in 2016. mHealth apps have been successfully used for health promotion activities but barriers such as lack of knowledge and comfort in using health apps exist.

Purpose: Evaluate readiness of a rural community and the …

Leveraging Online Learning To Promote Systems Thinking For Sustainable Food Systems Training In Dietetics Education, Marie Spiker, Amanda Hege, Janice Giddens, Joanna Cummings, Jasia Steinmetz, Angie Tagtow, Erin Bergquist, Lauren Burns, Christina Campbell, Diane Stadler, Elizabeth Combs, Nancy Prange, Aaron Schwartz, Katie Brown, Kevin Sauer

Dietetics and Human Nutrition Faculty Publications

Educating and training a multisectoral food systems workforce is a critical part of developing sustainable, resilient, and healthy food and water systems. This paper shares perspectives from a working group of educators, learners, and food systems subject matter experts that collaborated over the course of a year to develop, pilot test, and evaluate two interactive webinar series with a multi-site cohort of dietetics interns and graduate students. The three-part webinar series format included a training webinar, a practice activity, and a synthesis webinar. In reflecting on the effectiveness of this format, we provide direct assessments of student learning from subject …

Stakeholder Perspectives And Sustainability Of An Integrated Care Model For The Prevention And Management Of Obesity: The Childhood Obesity Research Demonstration (Cord) Project, Rebecca E Lee, Nathan H Parker, Allen M Hallett, Dennis Kao, Maria J Modelska, Hanadi S Rifai, Erica G Soltero, Daniel P O'Connor

Children’s Nutrition Research Center Staff Publications

Although reliable strategies exist to promote healthy habits that reduce childhood obesity, the sustainability of these strategies remains an ongoing public health challenge. This study aimed to identify factors experienced in a large, multisite project aimed at reducing childhood obesity that might contribute to project sustainability. Hypothesized constructs underpinning sustainability included replicability, continuation of benefits, institutionalization, and community capacity. Key informants (n = 27) completed 60 min, in-depth interviews, which were audio recorded and transcribed. Transcripts were first coded using a combined deductive and inductive approach. Four major themes emerged (with numerous subthemes): developing partnerships, challenges to the sustainability …

Brief, Effective Experience To Increase First-Year Medical Students’ Nutrition Awareness, Mary Thoesen Coleman, Paula Rhode Brantley, Pamela Markiewicz Wiseman, M. Robin English, Lauri O. Byerley

School of Medicine Faculty Publications

Background: Wellness is an important concept for medical students to learn, both for their own health and for their patients. Since nutrition is an essential part of one’s wellness that can positively or negatively impact one’s health, it is important for medical students to learn approaches to nutritional wellness. Studies have shown that physicians’ nutrition attitudes and clinical practices are positively correlated with their dietary practices. Objective: Here, we describe a brief nutrition-based education experience for first-year students offered at the start of the medical school curriculum that is designed to increase their nutrition awareness. Design: The nutrition experience involved …

The Chromosome-Level Genome Of Dragon Fruit Reveals Whole-Genome Duplication And Chromosomal Co-Localization Of Betacyanin Biosynthetic Genes, Jinfang Zheng, Lyndel W. Meinhardt, Ricardo Goenaga, Dapeng Zhang, Yanbin Yin

Food for Health: Publications

Dragon fruits are tropical fruits economically important for agricultural industries. As members of the family of Cactaceae, they have evolved to adapt to the arid environment. Here we report the draft genome of Hylocereus undatus, commercially known as the white-fleshed dragon fruit. The chromosomal level genome assembly contains 11 longest scaffolds corresponding to the 11 chromosomes of H. undatus. Genome annotation of H. undatus found ~29,000 protein-coding genes, similar to Carnegiea gigantea (saguaro). Whole-genome duplication (WGD) analysis revealed a WGD event in the last common ancestor of Cactaceae followed by extensive genome rearrangements. The divergence …

Hidden Sugar And Its Bitter Obstacles For The Wellbeing Of Consumers, Ai Nhan Ngo

Markets, Globalization & Development Review

This research paper explores issues pertaining to, and raises awareness about, high sugar intake among consumers, which causes several consequential health risks. The paper also points out various obstacles preventing consumers from reducing their high sugar consumption. These obstacles come from policymakers, policy influencers, the sugar industry, the food industry, and consumers themselves. For some obstacles, involvement of multiple parties was found. The research also discusses several possible solutions for improving a healthy consumption environment for consumer wellbeing.

Parents’ Perception Of Their Preschool Children’S Weight Status And Diet Quality: How Accurate It Is?, Taraneh Hazhin

Seton Hall University Dissertations and Theses (ETDs)

Childhood obesity is a major public health problem. Parents often have an inaccurate perception of their child’s weight status and diet quality. The purpose of this study was to assess the accuracy of parents’ perception of their 3-5 years old children’s weight status and diet quality; and to explore if there was a relationship between parental weight perception, parental diet perception, and children’s diet quality. A cross-sectional survey design was used to collect data from parents of healthy 3-5 years old preschool children (n=333) through convenient sampling method. Parents’ perception of their preschool children’s weight status was measured using a …

Healthy Trees – Healthy People: A Model For Engaging Citizen Scientists In Exotic Pest Detection In Urban Parks, Heather Norman-Burgdolf, Lynne K. Rieske

Dietetics and Human Nutrition Faculty Publications

Healthy Trees – Healthy People (HT-HP) is an outreach and education program created to enlist and train participants in exotic pest detection while providing them with structured opportunities to connect with urban nature and increase their physical and emotional health. HT- HP creates infrastructure to increase engagement by the urban populace in the urban tree canopy. The program solicits participants to engage in an 8-week intervention designed to expand capacity to detect non-native insect pests and pathogens, while increasing physical activity, raising awareness of healthy lifestyle choices, and improving the health of participants. Program participants were trained in tree and …

Nutrition And Chronic Pain, Elise Withers, Mateja R. Savoie-Roskos, Riley Samples, Maren Wright Voss

All Current Publications

The internet is full of information about anti-inflammatory diets, foods, and supplements claiming to prevent or alleviate chronic pain. For those who struggle with chronic pain, sound dietary advice is essential to improve intake and ultimately decrease pain (Arranz et al., 2010). However, it’s important to note that research showing the impact of specific foods on health and the immune system is currently limited; therefore, these claims should be interpreted with caution (Elma et al., 2020; Harvard Health, 2018). This fact sheet will cover (1) how inflammation affects chronic pain and (2) how eating a well-balanced diet may help reduce …

Integrating Policies, Systems, And Environments (Pse) Work Into Fcs Extension Programming: Lessons Learned From A Multi-State Training, Lisa T. Washburn, Heather Norman-Burgdolf, Karen L. Franck, Lauren E. Kennedy, Christopher T. Sneed

Dietetics and Human Nutrition Faculty Publications

Public health efforts have emphasized changes to policies, systems and environments (PSEs) to improve health behaviors for individuals and communities. Extension has increasingly emphasized these approaches, particularly for work of Family and Consumer Sciences (FCS) agents. In part, this emphasis on PSEs in Extension has been driven by SNAP-Ed and other federally funded initiatives, such as the Centers for Disease Control and Prevention (CDC) High Obesity Programs (HOP). However, broader adoption and implementation of PSEs at the local level has lagged in some states for various reasons. These include limited understanding about PSE interventions and how this work fits with …

Hba1c Performance In African Descent Populations In The United States With Normal Glucose Tolerance, Prediabetes, Or Diabetes: A Scoping Review, Lakshay Khosla, Sonali Bhat, Lee Ann Fullington, Margrethe F. Horlyck-Romanovsky

Publications and Research

IntroductionAfrican descent populations in the United States have high rates of type 2 diabetes and are incorrectly represented as a single group. Current glycated hemoglobin A1c (HbA1c) cutoffs (5.7% to

Methods A PubMed, Scopus, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) search (January 2020) yielded 3,238 articles published from January 2000 through January 2020. After review of titles, abstracts, and full texts, 12 met our criteria. HbA1c results were compared with other ethnic groups or validated against the oral glucose tolerance test (OGTT), fasting plasma glucose (FPG), or previous diagnosis. We classified study results by the …

Nutrinews: March Issue, 2021, Department Of Nutrition And Dietetics, University Of North Florida

NutriNews

The issue features Research around the World, Sustainable Consumption: Eating for your body and the planet, 5 Ways to Handle a Challenging Academic Semester.

Nutrition, Genetic Variation And Male Fertility, Shelley M. Vanderhout, Matineh Rastegar Panah, Bibiana Garcia-Bailo, Patricia Grace-Farfaglia, Konrad Samsel, Judith Dockray, Keith Jarvi, Ahmed El-Sohemy

Health Science Faculty Publications

Infertility affects nearly 50 million couples worldwide, with 40−50% of cases having a male factor component. It is well established that nutritional status impacts reproductive development, health and function, although the exact mechanisms have not been fully elucidated. Genetic variation that affects nutrient metabolism may impact fertility through nutrigenetic mechanisms. This review summarizes current knowledge on the role of several dietary components (vitamins A, B₁₂, C, D, E, folate, betaine, choline, calcium, iron, caffeine, fiber, sugar, dietary fat, and gluten) in male reproductive health. Evidence of gene-nutrient interactions and their potential effect on fertility is also examined. Understanding …

Prematurity Blunts The Insulin- And Amino Acid-Induced Stimulation Of Translation Initiation And Protein Synthesis In Skeletal Muscle Of Neonatal Pigs, Marko Rudar, Jane K Naberhuis, Agus Suryawan, Hanh V Nguyen, Barbara Stoll, Candace C Style, Mariatu A Verla, Oluyinka O Olutoye, Douglas G Burrin, Marta L Fiorotto, Teresa A Davis

Children’s Nutrition Research Center Staff Publications

Extrauterine growth restriction in premature infants is largely attributed to reduced lean mass accretion and is associated with long-term morbidities. Previously, we demonstrated that prematurity blunts the feeding-induced stimulation of translation initiation signaling and protein synthesis in skeletal muscle of neonatal pigs. The objective of the current study was to determine whether the blunted feeding response is mediated by reduced responsiveness to insulin, amino acids, or both. Pigs delivered by cesarean section preterm (PT; 103 days,

Perfluorooctanoic Acid (Pfoa) Or Perfluorooctane Sulfonate (Pfos) And Dna Methylation In Newborn Dried Blood Spots In The Upstate Kids Cohort, Sonia L Robinson, Xuehuo Zeng, Weihua Guan, Rajeshwari Sundaram, Pauline Mendola, Diane L Putnick, Robert A Waterland, Chathura J Gunasekara, Kurunthachalam Kannan, Chongjing Gao, Erin M Bell, Edwina H Yeung

Children’s Nutrition Research Center Staff Publications

Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are persistent organic pollutants which may alter prenatal development, potentially through epigenetic modifications. Prior studies examining PFOS/PFOA and DNA methylation have relatively few subjects (n < 200) and inconsistent results. We examined relations of PFOA/PFOS with DNA methylation among 597 neonates in the Upstate KIDS cohort study. PFOA/PFOS were quantified in newborn dried blood spots (DBS) using high-performance liquid chromatography/tandem mass spectrometry. DNA methylation was measured using the Infinium MethylationEPIC BeadChip with DNA extracted from DBS. Robust linear regression was used to examine the associations of PFOA/PFOS with DNA methylation at individual CpG sites. Covariates included sample plate, estimated cell type, epigenetically derived ancestry, infant sex and plurality, indicators of maternal socioeconomic status, and prior pregnancy loss. In supplemental analysis, we restricted the analysis to 2242 CpG sites previously identified as Correlated Regions of Systemic Interindividual Variation (CoRSIVs) which include metastable epialleles. At FDR90th percentile was related to DNA methylation at cg15557840, near SCRT2, SRXN1; PFOS>90th percentile was related to 2 CpG sites in a sex-specific manner (cg19039925 in GVIN1 in boys and cg05754408 in ZNF26 in girls). When analysis was restricted to CoRSIVs, log-scaled, continuous PFOS concentration was related to DNA methylation at cg03278866 within PTBP1. In conclusion, there was limited evidence of an association between high concentrations of PFOA/PFOS and DNA methylation in newborn DBS in the Upstate KIDS cohort. These …

Metabolic Flexibility Across The Spectrum Of Glycemic Regulation In Youth, Fida Bacha, Sara Klinepeter Bartz, Maurice Puyau, Anne Adolph, Susan Sharma

Children’s Nutrition Research Center Staff Publications

BACKGROUNDMetabolic flexibility (MF) refers to the relative ability to utilize lipid and carbohydrate substrates and to transition between them. It is not clear whether MF is impaired in obese youth and what the determining factors are.METHODSWe investigated the determinants of MF (increased respiratory exchange ratio [ΔRER] under insulin-stimulated conditions) in pubertal youth (n = 104; 15.6 ± 1.8 years) with obesity across the spectrum of glucose tolerance compared with normal weight (NW) controls, including body composition (fat-free mass [FFM], %body fat), visceral adipose fat (VAT) (MRI), glycemia, and insulin sensitivity (IS) [3-hour hyperinsulinemic-euglycemic clamp with measurement of lipolysis ([2H5] glycerol), …

A Standard Calculation Methodology For Human Doubly Labeled Water Studies, John R Speakman, Yosuke Yamada, Hiroyuki Sagayama, Elena S F Berman, Philip N Ainslie, Lene F Andersen, Liam J Anderson, Lenore Arab, Issaad Baddou, Kweku Bedu-Addo, Ellen E Blaak, Stephane Blanc, Alberto G Bonomi, Carlijn V C Bouten, Pascal Bovet, Maciej S Buchowski, Nancy F Butte, Stefan G J A Camps, Graeme L Close, Jamie A Cooper, Seth A Creasy, Sai Krupa Das, Richard Cooper, Lara R Dugas, Cara B Ebbeling, Ulf Ekelund, Sonja Entringer, Terrence Forrester, Barry W Fudge, Annelies H Goris, Michael Gurven, Catherine Hambly, Asmaa El Hamdouchi, Marije B Hoos, Sumei Hu, Noorjehan Joonas, Annemiek M Joosen, Peter Katzmarzyk, Kitty P Kempen, Misaka Kimura, William E Kraus, Robert F Kushner, Estelle V Lambert, William R Leonard, Nader Lessan, David S Ludwig, Corby K Martin, Anine C Medin, Erwin P Meijer, James C Morehen, James P Morton, Marian L Neuhouser, Theresa A Nicklas, Robert M Ojiambo, Kirsi H Pietiläinen, Yannis P Pitsiladis, Jacob Plange-Rhule, Guy Plasqui, Ross L Prentice, Roberto A Rabinovich, Susan B Racette, David A Raichlen, Eric Ravussin, Rebecca M Reynolds, Susan B Roberts, Albertine J Schuit, Anders M Sjödin, Eric Stice, Samuel S Urlacher, Giulio Valenti, Ludo M Van Etten, Edgar A Van Mil, Jonathan C K Wells, George Wilson, Brian M Wood, Jack Yanovski, Tsukasa Yoshida, Xueying Zhang, Alexia J Murphy-Alford, Cornelia U Loechl, Edward L Melanson, Amy H Luke, Herman Pontzer, Jennifer Rood, Dale A Schoeller, Klaas R Westerterp, William W Wong

Children’s Nutrition Research Center Staff Publications

The doubly labeled water (DLW) method measures total energy expenditure (TEE) in free-living subjects. Several equations are used to convert isotopic data into TEE. Using the International Atomic Energy Agency (IAEA) DLW database (5,756 measurements of adults and children), we show considerable variability is introduced by different equations. The estimated rCO2 is sensitive to the dilution space ratio (DSR) of the two isotopes. Based on performance in validation studies, we propose a new equation based on a new estimate of the mean DSR. The DSR is lower at low body masses (<10 kg). Using data for 1,021 babies and infants, we show that the DSR varies non-linearly with body mass between 0 and 10 kg. Using this relationship to predict DSR from weight provides an equation for rCO2 over this size range that agrees well with indirect calorimetry (average difference 0.64%; SD = 12.2%). We propose adoption of these equations in future studies.

Genetic Variants And Physical Activity Interact To Affect Bone Density In Hispanic Children, Ruixue Hou, Shelley A Cole, Mariaelisa Graff, Yujie Wang, Karin Haack, Sandra Laston, Nitesh R Mehta, Roman J Shypailo, Margaret L Gourlay, Anthony G Comuzzie, Kari E North, Nancy F Butte, Venkata Saroja Voruganti

Children’s Nutrition Research Center Staff Publications

Background: Our aim was to investigate if moderate to vigorous physical activity (MVPA), calcium intake interacts with bone mineral density (BMD)-related single nucleotide polymorphisms (SNPs) to influence BMD in 750 Hispanic children (4-19y) of the cross-sectional Viva La Familia Study.

Methods: Physical activity and dietary intake were measured by accelerometers and multiple-pass 24 h dietary recalls, respectively. Total body and lumbar spine BMD were measured by dual energy X-ray absorptiometry. A polygenic risk score (PRS) was computed based on SNPs identified in published literature. Regression analysis was conducted with PRSs, MVPA and calcium intake with total body and lumbar spine …

Dietary Anti-Aging Polyphenols And Potential Mechanisms, Jing Luo, Hongwei Si, Zhenquan Jia, Dongmin Liu

Human Sciences Faculty Research

For years, the consumption of a diet rich in fruits and vegetables has been considered healthy, increasing longevity, and decreasing morbidities. With the assistance of basic research investigating the potential mechanisms, it has become clear that the beneficial effects of plant-based foods are mainly due to the large amount of bioactive phenolic compounds contained. Indeed, substantial dietary intervention studies in humans have supported that the supplementation of polyphenols have various health-promoting effects, especially in the elderly population. In vitro examinations on the anti-aging mechanisms of polyphenols have been widely performed, using different types of natural and synthetic phenolic compounds. The …

Characterization Of Two Zygnema Strains (Zygnema Circumcarinatum Sag 698-1a And Sag 698-1b) And A Rapid Method To Estimate Nuclear Genome Size Of Zygnematophycean Green Algae, Xuehuan Feng, Andreas Holzinger, Charlotte Permann, Dirk Anderson, Yanbin Yin

Food for Health: Publications

Zygnematophyceae green algae (ZGA) have been shown to be the closest relatives of land plants. Three nuclear genomes (Spirogloea muscicola, Mesotaenium endlicherianum, and Penium margaritaceum) of ZGA have been recently published, and more genomes are underway. Here we analyzed two Zygnema circumcarinatum strains SAG 698-1a (mating +) and SAG 698-1b (mating −) and found distinct cell sizes and other morphological differences. The molecular identities of the two strains were further investigated by sequencing their 18S rRNA, psaA and rbcL genes. These marker genes of SAG 698-1a were surprisingly much more similar to Z. cylindricum (SAG 698-2) than to SAG 698-1b. …

Characterization Of Two Zygnema Strains (Zygnema Circumcarinatum Sag 698-1a And Sag 698-1b) And A Rapid Method To Estimate Nuclear Genome Size Of Zygnematophycean Green Algae, Xuehuan Feng, Andreas Holzinger, Charlotte Permann, Dirk Anderson, Yanbin Yin

Food for Health: Publications

Zygnematophyceae green algae (ZGA) have been shown to be the closest relatives of land plants. Three nuclear genomes (Spirogloea muscicola, Mesotaenium endlicherianum, and Penium margaritaceum) of ZGA have been recently published, and more genomes are underway. Here we analyzed two Zygnema circumcarinatum strains SAG 698-1a (mating +) and SAG 698-1b (mating −) and found distinct cell sizes and other morphological differences. The molecular identities of the two strains were further investigated by sequencing their 18S rRNA, psaA and rbcL genes. These marker genes of SAG 698-1a were surprisingly much more similar to Z. cylindricum (SAG 698-2) than to SAG 698-1b. …

Characterization Of Two Zygnema Strains (Zygnema Circumcarinatum Sag 698-1a And Sag 698-1b) And A Rapid Method To Estimate Nuclear Genome Size Of Zygnematophycean Green Algae, Xuehuan Feng, Andreas Holzinger, Charlotte Permann, Dirk Anderson, Yanbin Yin

Food for Health: Publications

Zygnematophyceae green algae (ZGA) have been shown to be the closest relatives of land plants. Three nuclear genomes (Spirogloea muscicola, Mesotaenium endlicherianum, and Penium margaritaceum) of ZGA have been recently published, and more genomes are underway. Here we analyzed two Zygnema circumcarinatum strains SAG 698-1a (mating +) and SAG 698-1b (mating −) and found distinct cell sizes and other morphological differences. The molecular identities of the two strains were further investigated by sequencing their 18S rRNA, psaA and rbcL genes. These marker genes of SAG 698-1a were surprisingly much more similar to Z. cylindricum (SAG 698-2) than to SAG 698-1b. …

Food Insecurity Measurement And Prevalence Estimates During The Covid-19 Pandemic In A Repeated Cross-Sectional Survey In Mexico, Pablo Gaitán-Rossi, Mireya Vilar-Compte, Graciela Teruel, Rafael Pérez-Escamilla

Department of Public Health Scholarship and Creative Works

Objective: To validate the telephone modality of the Latin American and Caribbean Food Security Scale (ELCSA) included in three waves of a phone survey to estimate the monthly household food insecurity prevalence during the COVID-19 pandemic in Mexico. Design: We examined the reliability and internal validity of the ELCSA scale in three repeated waves of cross-sectional surveys with Rasch models. We estimated the monthly prevalence of food insecurity in the general population and in households with and without children and compared them with a national 2018 survey. We tested concurrent validity by testing associations of food insecurity with socio-economic status …