2,837 results match your criteria American Journal Of Human Biology[Journal]


Nightly fasting duration is not associated with the prevalence of metabolic syndrome among non-shift workers: The Furukawa Nutrition and Health Study.

Am J Hum Biol 2020 May 27:e23437. Epub 2020 May 27.

Department of Epidemiology and Prevention, National Center for Global Health and Medicine, Tokyo, Japan.

Objectives: While several experimental studies in animals and humans have suggested the protective effect of nightly fasting duration (NFD) against cardiometabolic risk factors, few population-based studies have been conducted. This study aimed to investigate the association between NFD and metabolic syndrome (MetS) among Japanese non-shift workers.

Methods: A subset of 1054 non-shift workers from the Furukawa Nutrition and Health Study were included in this analysis. Read More

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http://dx.doi.org/10.1002/ajhb.23437DOI Listing

A biocultural examination of home food production and child growth in highland Peru.

Authors:
Morgan K Hoke

Am J Hum Biol 2020 May 27:e23438. Epub 2020 May 27.

Department of Anthropology & Population Studies Center, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Objectives: Chronic malnutrition remains a persistent global health issue. This mixed methods investigation in rural Peru examines the role of home food production (HFP) in reducing child malnutrition by testing the following hypotheses: (a) higher HFP will be associated with higher infant z-scores than those with less HFP and (b) infants with higher HFP will exhibit improved longitudinal growth outcomes across 6 months.

Methods: Ethnographic methods include semi-structured interviews and participant observation. Read More

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http://dx.doi.org/10.1002/ajhb.23438DOI Listing

Factors affecting attitudes toward migrants-An evolutionary approach.

Am J Hum Biol 2020 May 26:e23435. Epub 2020 May 26.

Department of Evolutionary Anthropology, University of Vienna, Vienna, Austria.

Objective: To understand migration from an evolutionary perspective, this phenomenon has so far been mainly investigated in animal species. We therefore aim to investigate the potential evolutionary roots of attitudes toward migrants in humans.

Methods: We used data from the European Social Survey (n = 83 734), analyzing attitudes toward migrants by performing ordinal mixed models. Read More

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http://dx.doi.org/10.1002/ajhb.23435DOI Listing

Association between type 2 diabetes mellitus & TCF7L2 gene variants in the Emirati population: Genetics of diabetes in the United Arab Emirates.

Am J Hum Biol 2020 May 23:e23434. Epub 2020 May 23.

Center of Biotechnology, Khalifa University of Science, Technology & Research, Abu Dhabi, United Arab Emirates.

Objective: Type 2 diabetes mellitus (T2DM) has a multifactorial etiology involving a complex interplay between genes and the environment. The prevalence of T2DM among the countries of the Gulf Corporation Council (GCC), including the United Arab Emirates (UAE), ranks among the top 15 in the world. A number of studies have shown an increase in T2DM risk for the "TT" genotype at the rs4506565 and rs12255372 Single Nucleotide Polymorphisms (SNP) of the TCF7L2 gene. Read More

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http://dx.doi.org/10.1002/ajhb.23434DOI Listing

The effect of genetic vs nongenetic parental care on adult children's income and wealth in later life: An evolutionary analysis.

Am J Hum Biol 2020 May 23:e23431. Epub 2020 May 23.

Health Management and Policy, Miami Herbert Business School, University of Miami, Coral Gables, Florida, USA.

Objective: Using Wave IV of the National Longitudinal Study of Adolescent to Adult Health data set, this preregistered study set out to investigate the effect of parental care arrangements (eg, genetically related parents, adoptive, step/ foster, genetic nonparental relative, and no parental figure) on adult children's income and wealth in later life.

Methods: Consistent with the preregistration plan, multivariate analyses of covariance were first used to examine, separately, the effects of paternal and maternal care arrangements on children's income and wealth in later life. Further post hoc exploratory analyses were carried out to evaluate the robustness of the findings. Read More

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http://dx.doi.org/10.1002/ajhb.23431DOI Listing

Time intervals between the age at menarche and the onset of sexual activity in Polish women born between 1959 and 2001.

Am J Hum Biol 2020 May 23:e23436. Epub 2020 May 23.

Institute of Human Biology and Evolution, Faculty of Biology, Adam Mickiewicz University, Poznan, Poland.

Objectives: The aim of this study was to assess time intervals between the age at menarche (AM) and age at sexual initiation (ASI) in Polish women born before and after the political transformation period in Poland.

Methods: Participants were 518 women born between 1959 and 2001 in Poland. AM and ASI were based on self-report. Read More

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http://dx.doi.org/10.1002/ajhb.23436DOI Listing

The role of human biology in addressing the COVID-19 pandemic.

Am J Hum Biol 2020 05 6;32(3):e23430. Epub 2020 May 6.

Department of Anthropology & Program in Global Health Studies, Northwestern University, Evanston, Illinois, USA.

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http://dx.doi.org/10.1002/ajhb.23430DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7235525PMC

Influence of height on likelihood of employment, occupational sorting, and earnings in 27 post-communist countries.

Am J Hum Biol 2020 Apr 28:e23422. Epub 2020 Apr 28.

School of Social Work, Lakehead University, Thunder Bay, Ontario, Canada.

Objectives: We study the influence of height on labour market outcomes using micro-data from a recent survey that cover 27 post-communist countries. Specifically, we focus on the influence of height on three dimensions of labour market outcome: (1) likelihood of employment, (2) occupational sorting, and (3) earnings.

Methods: We use micro-data from 2016 Life-In-Transition survey (LITS) which was jointly conducted by the European Bank for Reconstruction and Development and the World Bank. Read More

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http://dx.doi.org/10.1002/ajhb.23422DOI Listing

Maternal marital status predicts self-reported stress among pregnant women following hurricane Florence.

Am J Hum Biol 2020 Apr 27:e23427. Epub 2020 Apr 27.

School of Social Work, University of North Carolina Wilmington, Wilmington, North Carolina, USA.

Objectives: The effects of stress caused by natural disasters may be more pronounced in individuals with preexisting disadvantages. The degree of hardship and psychological distress associated with Hurricane Florence was assessed in 83 pregnant women. This research helps identify unmarried pregnant women as a group particularly at risk of distress following a natural disaster. Read More

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http://dx.doi.org/10.1002/ajhb.23427DOI Listing

The mediating role of visceral adiposity in the relationship among schooling, physical inactivity, and unhealthy metabolic phenotype.

Am J Hum Biol 2020 Apr 25:e23425. Epub 2020 Apr 25.

Programa de Pós-Graduação em Nutrição, Universidade Federal de Santa Catarina, Florianópolis, Brazil.

Objective: To explore the mediating role of visceral adiposity, as assessed by the visceral adiposity index (VAI), in the relationship among schooling, physical inactivity, and unhealthy metabolic phenotype (UMP).

Methods: A cross-sectional population-based study was conducted with 854 adult individuals of both sexes from a Brazilian city. Data were collected through interviews, anthropometric evaluation, and clinical and laboratorial tests. Read More

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http://dx.doi.org/10.1002/ajhb.23425DOI Listing

The association of Native American genetic ancestry and high-density lipoprotein cholesterol: A representative study of a highly admixed population.

Am J Hum Biol 2020 Apr 24:e23426. Epub 2020 Apr 24.

Center for Population Health Research, National Institute of Public Health, Cuernavaca, Mexico.

Objective: Hispanic populations typically show a high prevalence of dyslipidemias, especially of low high-density lipoproteins (HDLs) or HDL cholesterol. Highly admixed populations are ideal groups to clarify the role of genetic ancestry on HDL concentrations, isolating it from that of other factors. The objective of this study was to estimate the association between Native American genetic ancestry and HDL-cholesterol levels independent of socioeconomic factors in a representative sample of the Mexican population. Read More

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http://dx.doi.org/10.1002/ajhb.23426DOI Listing

The influence of socioeconomic status and age on the prevalence of overweight and obesity among 5 to 10-year-old children in Curitiba, Brazil.

Am J Hum Biol 2020 Apr 22:e23424. Epub 2020 Apr 22.

CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal.

Objective: The aim of this study was to examine the influence of the socioeconomic status (SES) and age on the prevalence of overweight and obesity among 5 to 10-year-old children from Brazil.

Methods: The sample consisted of 80 782 (41 063 boys) students aged 5 to 10-year-old. Height and weight were measured and body mass index (BMI) was calculated. Read More

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http://dx.doi.org/10.1002/ajhb.23424DOI Listing

Effects of energy and essential fatty acids content in breast milk on infant's head dimensions.

Am J Hum Biol 2020 Apr 19:e23418. Epub 2020 Apr 19.

Department of Anthropology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wrocław, Poland.

Objectives: Essential fatty acids (EFA), including linoleic acid (LA) and alpha-linolenic acid (ALA), are indispensable for proper brain growth especially in the first months after birth when it develops most rapidly. Since fats, especially EFA, in breast milk are highly variable between mothers, we indirectly examined whether milk energy, LA and ALA content in breast milk affect volume and shape of the infant's head.

Methods: The study encompassed 60 mothers and their healthy term-born infants between the third and sixth month of lactation. Read More

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http://dx.doi.org/10.1002/ajhb.23418DOI Listing

Body size at birth in babies born during World War II: The evidence from Poland.

Am J Hum Biol 2020 Apr 15:e23421. Epub 2020 Apr 15.

Laboratory of Morphology and Forensic Anthropology (LaMorFA), Department of Anthropology, Faculty of Science, Masaryk University, Brno, Czech Republic.

Objectives: The objective of the study was to determine whether exposure of pregnant women to stresses caused by World War II (WWII) negatively affected pregnancy and perinatal outcomes.

Methods: Individual medical documents deposited in the Gynaecology and Obstetrics Clinic of Medical University, Poznań (1934-1943; N = 7058) were evaluated. These were divided into two birth cohorts: before WWII and during it. Read More

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http://dx.doi.org/10.1002/ajhb.23421DOI Listing

A composite measure of healthy lifestyle: A study from 38 countries and regions from Europe and North America, from the Health Behavior in School-Aged Children survey.

Am J Hum Biol 2020 Apr 11:e23419. Epub 2020 Apr 11.

ISAMB, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.

Introduction: This study aimed to create a composite measure of a healthy lifestyle for adolescents, and analyze its relationship to sociodemographic factors.

Methods: Data were from the Health Behavior in School-Aged Children 2014 International survey. Participants were 167 021 adolescents (48. Read More

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http://dx.doi.org/10.1002/ajhb.23419DOI Listing

Seasonality and season of birth effect in the UK Biobank cohort.

Am J Hum Biol 2020 Mar 28:e23417. Epub 2020 Mar 28.

Division of Informatics, Imaging & Data Sciences, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK.

Objectives: Humans live in environments that reduce the impact of seasonal cues. However, studies suggest that many aspects of human biology, such as birth, metabolism, health, and death are still annually rhythmic.

Methods: Using UK Biobank, a large (N = 502 536) population-based resource, we investigated the influence of seasonality on birth rate, basal metabolic rate, health, reaction speed, and sleep. Read More

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http://dx.doi.org/10.1002/ajhb.23417DOI Listing

Inflammation and central adiposity as mediators of depression and uncontrolled diabetes in the study on global AGEing and adult health (SAGE).

Am J Hum Biol 2020 Mar 28. Epub 2020 Mar 28.

Department of Anthropology, University of Oregon, Eugene, Oregon, USA.

Objectives: Diabetes and depression are commonly present in the same individuals, suggesting the possibility of underlying shared physiological processes. Inflammation, as assessed with the biomarker C-reactive protein (CRP), has not consistently explained the observed relationship between diabetes and depression, although both are associated with inflammation and share proposed inflammatory mechanisms. Central adiposity has also been associated with both conditions, potentially by causing increased inflammation. Read More

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http://dx.doi.org/10.1002/ajhb.23413DOI Listing

A genetic variant of pri-miR-182 may impact the risk for the onset of multiple sclerosis in the Iranian population.

Am J Hum Biol 2020 Mar 25:e23415. Epub 2020 Mar 25.

Department of Biology, Faculty of Basic Sciences, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.

Background: Multiple sclerosis (MS) is the most common autoimmune disease of the central nervous system affecting young adults. SNPs can be used as genetic biomarkers to identify disease-related genes such as MS. Moreover, SNPs can be considered as important determinants for an increased risk of autoimmune diseases such as MS. Read More

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http://dx.doi.org/10.1002/ajhb.23415DOI Listing

A missense variant in CREBRF is associated with taller stature in Samoans.

Am J Hum Biol 2020 Mar 19:e23414. Epub 2020 Mar 19.

Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

Objectives: Studies have demonstrated that rs373863828, a missense variant in CREBRF, is associated with a number of anthropometric traits including body mass index (BMI), obesity, percent body fat, hip circumference, and abdominal circumference. Given the biological relationship between height and adiposity, we hypothesized that the effect of this variant on BMI might be due in part to an association of this variant with height.

Methods: We tested the hypothesis that minor allele of rs373863828 is associated with height in a Samoan population in two adult cohorts and in a separate cohort of children (age 5-18 years old) using linear mixed modeling. Read More

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http://dx.doi.org/10.1002/ajhb.23414DOI Listing

Telomere length analysis from minimally-invasively collected samples: Methods development and meta-analysis of the validity of different sampling techniques: American Journal of Human Biology.

Am J Hum Biol 2020 Mar 18:e23410. Epub 2020 Mar 18.

Department of Anthropology, University of Washington, Seattle, Washington, USA.

Objectives: Telomeres are the protective caps of chromosomes. They shorten with cell replication, age, and possibly environmental stimuli (eg, infection and stress). Short telomere length (TL) predicts subsequent worse health. Read More

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http://dx.doi.org/10.1002/ajhb.23410DOI Listing

An examination of breastmilk composition among high altitude Peruvian women.

Am J Hum Biol 2020 Mar 13:e23412. Epub 2020 Mar 13.

Department of Anthropology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Objective: Relatively little is known about sources of variation in human breastmilk composition. Previous research posits that composition may be affected by the low oxygen environment found at high altitude (HA). Our objective is to compare the milk composition of a sample of HA Andeans to previously published data on HA Tibetans and low altitude (LA) Peruvians. Read More

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http://dx.doi.org/10.1002/ajhb.23412DOI Listing

Field-testing olfactory ability to understand human olfactory ecology.

Am J Hum Biol 2020 Mar 9:e23411. Epub 2020 Mar 9.

Centre for Research in Evolutionary, Social and Inter-Disciplinary Anthropology, University of Roehampton, London, UK.

Objectives: We know little about human olfactory ability in natural settings because current knowledge derives from lab-based studies using nonrepresentative samples of convenience. The primary objective was to use a validated lab tool, the five-item odor identification test, to assess variation in olfactory ability in different environments.

Methods: Using the five-item test, we conducted two repeated measures experiments that assessed participant ability to correctly identify an odor source in different odor environments. Read More

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http://dx.doi.org/10.1002/ajhb.23411DOI Listing

Seasonal variations in physical activity and sedentary behavior among preschool children in a Central China city.

Am J Hum Biol 2020 Feb 25:e23406. Epub 2020 Feb 25.

Preschool Education School, Changsha Normal University, Changsha, Hunan, China.

Purpose: Seasonality is an important factor in children's physical activity (PA) and sedentary behavior (SB); thus, the aim of this study was to explore the seasonal characteristics of Chinese preschool children's PA and SB.

Method: Preschool children (n = 65) from a kindergarten middle class in Changsha, the capital city of Hunan Province in Central China, were recruited, and a three-axis accelerometer (ActiGraph GT3X-BT) was used to longitudinally track their PA and SB status. One-way repeated-measures ANOVA (Analysis of Variance) and Friedman tests were employed for analysis, with significance set at P < . Read More

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http://dx.doi.org/10.1002/ajhb.23406DOI Listing
February 2020

Physical growth and body adiposity patterns in children and adolescents at high altitudes in Peru: Proposed percentiles for assessment.

Am J Hum Biol 2020 Feb 20:e23398. Epub 2020 Feb 20.

Departamento de Diversidad e Inclusividad Educativa, Universidad Católica del Maule, Talca, Chile.

Objectives: This study's purpose was to compare physical growth (PG) patterns of children and adolescents living at high elevations with those of other geographic regions, relate body adiposity indicators, and develop percentile reference tables for assessing physical growth and body adiposity.

Methods: The sample included 1536 children and adolescents ages 5.0 to 17. Read More

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http://dx.doi.org/10.1002/ajhb.23398DOI Listing
February 2020
1.700 Impact Factor

Salivary secretory immunoglobulin A variation between female varsity athletes and nonathletes.

Am J Hum Biol 2020 Feb 17:e23405. Epub 2020 Feb 17.

Washington University in St. Louis, St. Louis, Missouri.

Objectives: Exercise can lead to changes in immune function. To further investigate this relationship, we examined possible differences in salivary secretory immunoglobulin A (sIgA) secretion rates among female college athletes and nonathlete students. We predicted that athletes would have higher sIgA secretion rates than nonathletes and show greater declines in sIgA during the study period as intensive exercise training continued. Read More

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http://dx.doi.org/10.1002/ajhb.23405DOI Listing
February 2020

Maternal birth weight is associated with milk epidermal growth factor in Filipino women.

Am J Hum Biol 2020 Feb 14:e23403. Epub 2020 Feb 14.

Department of Anthropology, Washington University in St. Louis, Saint Louis, Missouri.

Objectives: Lactational programming, through which milk-borne bioactives influence both neonatal and long-term biological development, is well established. However, almost no research has investigated how developmental stimuli during a mother's early life may influence her milk bioactives in adulthood. Here, we investigated the association between maternal birth weight and milk epidermal growth factor (EGF) and epidermal growth factor receptor (EGF-R) in later life. Read More

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http://dx.doi.org/10.1002/ajhb.23403DOI Listing
February 2020

Secular trends in age at menarche in 20th century Mexico: Differences by ethnicity, area of residency, and socioeconomic status.

Am J Hum Biol 2020 Feb 13:e23404. Epub 2020 Feb 13.

Instituto de Investigaciones Psicológicas, Universidad Veracruzana, Xalapa, Mexico.

Objectives: This study aims to assess the secular trend in age at menarche (AAM) in Mexico over the 20th century, and compare the patterns according to area of residence (rural/urban), socioeconomic status (SES), and ethnicity (indigenous/nonindigenous).

Methods: Data on AAM from 24 380 women aged ≥20 years born between 1906 and 1986 were obtained from the Mexican National Health and Nutrition Survey 2006. Birth cohorts were compared to test for a secular trend and differences in mean AAM by area of residence, SES, and ethnicity were evaluated using the Welch test for heterogeneous variances followed by Tamhane T for post hoc comparisons. Read More

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http://dx.doi.org/10.1002/ajhb.23404DOI Listing
February 2020

Influence of sex and resistance training status on orofacial muscle strength and morphology in healthy adults between the ages of 18 and 40: A cross-sectional study.

Am J Hum Biol 2020 Feb 7:e23401. Epub 2020 Feb 7.

Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, Oxford, Mississippi.

Objective: To compare the orofacial muscle strength and facial muscle thickness between resistance-trained and non-resistance trained men and women.

Methods: Resistance-trained (25 men and 22 women) and non-resistance trained (21 men and 30 women) adults (18-40 years) had standard measurements of orofacial muscle strength (ie, anterior tongue elevation, cheek compression, and lip compression) and ultrasound measurements of facial muscle thickness. Body composition (percent fat, etc. Read More

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http://dx.doi.org/10.1002/ajhb.23401DOI Listing
February 2020

Influence of parental perceived environment on physical activity, TV viewing, active play and Body Mass Index among Portuguese children: A mediation analysis.

Am J Hum Biol 2020 Feb 6:e23400. Epub 2020 Feb 6.

CIAS - Research Centre for Anthropology and Health, University of Coimbra, Coimbra, Portugal.

Objectives: The environment is believed to be key in obesity prevention, yet it is unclear how factors in the neighborhood influence weight-related behaviors. The present study aimed to investigate the influence of parental perceived environment on physical activity (PA), television (TV) time, active play and Body Mass Index (BMI) z score, and the mediating role of these weight-related behaviors on the relationship between neighborhood characteristics and children's BMI.

Methods: Data of 8472 Portuguese preschool (aged 3-6, n = 3819) and school-aged children (aged 7-11 years, n = 4653) were collected during 2016/2017. Read More

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http://dx.doi.org/10.1002/ajhb.23400DOI Listing
February 2020

Physical Activity and Cardiorespiratory Fitness in Tarahumara and Mestizo Adolescents from Sierra Tarahumara, Mexico.

Am J Hum Biol 2020 Feb 5:e23396. Epub 2020 Feb 5.

Centre National de la Recherche Scientifique, UMR 7206, Paris, France.

Objectives: Our purpose was to explore the levels of cardiorespiratory fitness (CRF) and the relationship between CRF, physical activity, and other physical traits in traditional and nontraditional Tarahumara, and Mestizo adolescents from Sierra Tarahumara, Mexico.

Methods: A sample of 87 adolescents aged 16.9 ± 1. Read More

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http://dx.doi.org/10.1002/ajhb.23396DOI Listing
February 2020

Association of saliva 25(OH)D concentration with body composition and proportion among pre-pubertal and pubertal Polish children.

Am J Hum Biol 2020 Feb 5:e23397. Epub 2020 Feb 5.

Section of Forensic Genetics, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.

Objectives: Due to increasing problems with obesity and vitamin D deficiency among children, studies that tackle both problems together are needed.

Methods: Data were collected from 182 randomly selected children aged 6-13 years in primary schools in central Poland. Measures included anthropometric dimensions, body composition, questionnaires completed by participants' parents, and saliva samples. Read More

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http://dx.doi.org/10.1002/ajhb.23397DOI Listing
February 2020

Why is low body fat rarely seen in large-sized male athletes?

Am J Hum Biol 2020 Feb 5:e23399. Epub 2020 Feb 5.

Department of Health, Exercise Science, & Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, Mississippi.

Objectives: It is unknown why low body fat is rarely seen in large-sized athletes (>100 kg body mass). The aim of this review was to examine the relationship between body mass and body composition (fat mass and fat-free mass) in elite male athletes, and to discuss the possible reasons why low body fat is rarely seen in large-sized male athletes.

Methods: A search using two electronic databases was conducted. Read More

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http://dx.doi.org/10.1002/ajhb.23399DOI Listing
February 2020

Validation of an enzyme-linked immunoassay assay for osteocalcin, a marker of bone formation, in dried blood spots.

Am J Hum Biol 2020 Feb 4:e23394. Epub 2020 Feb 4.

Department of Anthropology, University of Oregon, Eugene, Oregon.

Objectives: Investigating factors that contribute to bone loss and accretion across populations in remote settings is challenging, particularly where diagnostic tools are scarce. To mitigate this challenge, we describe validation of a commercial ELISA assay to measure osteocalcin, a biomarker of bone formation, from dried blood spots (DBS).

Methods: We validated the Osteocalcin Human SimpleStep ELISA kit from Abcam (ab1951214) using 158 matched plasma and DBS samples. Read More

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http://dx.doi.org/10.1002/ajhb.23394DOI Listing
February 2020

Changing body norms in the context of increasing body size: Samoa in 1995 and 2018.

Am J Hum Biol 2020 Feb 4:e23395. Epub 2020 Feb 4.

Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, Connecticut.

Objective: To understand how body size preferences changed in Samoa between 1995 and 2017 to 2019.

Methods: Data were from adults aged from 31 to 59 years, who participated in two separate cross-sectional studies of obesity and cardiometabolic risk conducted in Samoa in 1995 and 2017 to 2019. Participants nominated line drawings representing their current size, ideal size, the most attractive and healthiest size, and the lower/upper limits of "normal" size. Read More

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http://dx.doi.org/10.1002/ajhb.23395DOI Listing
February 2020

Parental misperception of their child's weight status and how weight underestimation is associated with childhood obesity.

Am J Hum Biol 2020 Jan 29:e23393. Epub 2020 Jan 29.

CIAS-Research Centre for Anthropology and Health, University of Coimbra, Calçada Martim de Freitas, Coimbra, Portugal.

Objectives: Obesity is a major public health concern worldwide. This study aims to investigate the accuracy of parental perception of child's weight and related factors as well as how underestimation is associated with the prevalence of childhood obesity.

Methods: Data from 793 parents and respective children (6-10 years) were collected during the spring of 2013 and 2014. Read More

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http://dx.doi.org/10.1002/ajhb.23393DOI Listing
January 2020

Birth weight, birth order, and age at first solid food introduction influence child growth and body composition in 6- to 8-year-old Maya children: The importance of the first 1000 days of life.

Am J Hum Biol 2020 Jan 29:e23385. Epub 2020 Jan 29.

Departamento de Ecología Humana, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mérida, Yucatán, Mexico.

Objectives: To analyze the relationship of birth weight, birth order, breastfeeding duration, and age of introduction of solid foods with height, fat mass, and fat-free mass in a sample of Maya children when aged 6 to 8 years old.

Methods: We collected data on anthropometry, body composition, children's birth weight, birth order, early feeding practices, and household socioeconomic characteristics in a sample of 260 Maya children aged 6 to 8 years living in Merida and Motul, two cities in Yucatan, Mexico. Multiple regression models were performed to identify variables associated with height-for-age (HAZ), fat mass index (FMI), and fat-free mass index (FFMI). Read More

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http://dx.doi.org/10.1002/ajhb.23385DOI Listing
January 2020

Secular trend in age at menarche in women in Portugal born between 1920 and 1992: Results from three population-based studies.

Am J Hum Biol 2020 Jan 25:e23392. Epub 2020 Jan 25.

EPIUnit-Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.

Objectives: Worldwide data on age at menarche suggest a gradually earlier maturation, which is stabilizing in some societies. The interplay between socioeconomic, behavioral, and environmental factors generates uncertainty about the current status and future trend of age at menarche in most societies. Therefore, we aimed to describe trends in age at menarche during the 20th century in Portugal. Read More

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http://dx.doi.org/10.1002/ajhb.23392DOI Listing
January 2020

Height and life-satisfaction nexus: Reflection on Hermanussen et al.

Am J Hum Biol 2020 May 20;32(3):e23391. Epub 2020 Jan 20.

School of Social Work, Lakehead University, Thunder Bay, Ontario, Canada.

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http://dx.doi.org/10.1002/ajhb.23391DOI Listing

Weight perception among US adults predicts cardiovascular risk when controlling for body fat percentage.

Am J Hum Biol 2020 Jan 15:e23384. Epub 2020 Jan 15.

Indiana University Bloomington, Bloomington, Indiana.

Objectives: Previous research has revealed that increased obesity prevalence in the US has occurred in concert with an increase in those in overweight and obese BMI categories perceiving their weight as "about right" since the 1980s. Using biological normalcy as a framework, we assess whether individual weight perception is related to the risk of cardiovascular disease (CVD) when controlling for body fat percentage (BF%).

Methods: Data from the National Health and Nutrition Examination Survey (1999-2006) included weight perception, BF%, covariates, and variables to calculate Framingham Risk Score (CVD risk) among 9489 US Americans aged 20-79 years. Read More

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http://dx.doi.org/10.1002/ajhb.23384DOI Listing
January 2020

Time trends in the prevalence of breastfeeding among schoolchildren from public and private schools in Florianópolis, Southern Brazil: From 2002 to 2013.

Am J Hum Biol 2020 Jan 13:e23386. Epub 2020 Jan 13.

Department of Nutrition, Federal University of Santa Catarina, School of Health Science, Campus Universitário, Trindade, Brazil.

Objective: To describe breastfeeding trends from 2002 to 2012/2013, and to investigate whether breastfeeding practices differ between mothers of children in public and private schools.

Methods: Data were obtained from three school-based cross-sectional studies conducted with 7 to 10 years old children. The total sample was 7264 individuals. Read More

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http://dx.doi.org/10.1002/ajhb.23386DOI Listing
January 2020

Dried blood spots: Effects of less than optimal collection, shipping time, heat, and humidity.

Am J Hum Biol 2020 Jan 10:e23390. Epub 2020 Jan 10.

Survey Research Center, University of Michigan, Ann Arbor, Michigan.

Objectives: This study investigates how factors related to collection, storage, transport time, and environmental conditions affect the quality and accuracy of analyses of dried blood spot (DBS) samples.

Methods: Data come from the 2016 Health and Retirement Study (HRS) DBS laboratory reports and the HRS merged with the National Climatic Data Center (NCDC) Global Historical Climate Network Daily (NCDC GHCN-Daily) and the NCDC Local Climatological Data, by zip code. We ran regression models to examine the associations between assay values based on DBS for five analytes (total cholesterol, high-density lipoprotein (HDL) cholesterol, glycosylated hemoglobin (HbA1c), C-reactive protein (CRP), and cystatin C) and the characteristics of DBS cards and drops, shipping time, and temperature, and humidity at the time of collection. Read More

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http://dx.doi.org/10.1002/ajhb.23390DOI Listing
January 2020
1.700 Impact Factor

Water & Human Biology and New Developments for the American Journal of Human Biology.

Am J Hum Biol 2020 01 9;32(1):e23389. Epub 2020 Jan 9.

Department of Anthropology & Program in Global Health Studies, Northwestern University, Evanston, Illinois.

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January 2020

Trends of folate, vitamin B , and homocysteine levels in different trimesters of pregnancy and pregnancy outcomes.

Am J Hum Biol 2020 Jan 2:e23388. Epub 2020 Jan 2.

Department of Anthropology, University of Delhi, Delhi, India.

Objective: To evaluate the effect of folate and vitamin B levels on pregnancy progression and outcomes.

Methods: The present study is a prospective follow up study of 100 pregnant women. Biochemical investigations (plasma homocysteine, folate, and vitamin B levels) were performed on all pregnant women in first, second, and third trimesters. Read More

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January 2020

The regulation of human growth includes an understanding of competitive growth strategies and community effects on height.

Am J Hum Biol 2020 May 31;32(3):e23383. Epub 2019 Dec 31.

Institute of Biochemistry and Biology, Human Biology, University of Potsdam, Potsdam, Germany.

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http://dx.doi.org/10.1002/ajhb.23383DOI Listing

Perceptions of the healthiest body in a market-integrating indigenous population in Argentina: Fat idealization and gendered generational differences.

Am J Hum Biol 2019 Dec 30:e23382. Epub 2019 Dec 30.

Department of Anthropology, Yale University, New Haven, Connecticut.

Objectives: Market integration seems to induce gender-specific generational change in health-related perceptions of body size. We predicted that among the Qom of Argentina, younger women would perceive comparatively thinner bodies as healthiest, demonstrating thin-idealizing body norms, and older women would retain culturally rooted perceptions of heavier bodies as healthiest. As traditional and globalized body size ideals are different for men, we predicted that men would perceive normal bodies as healthiest and would not exhibit generational differences. Read More

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December 2019

Tibor Antal Koertvelyessy 1941-2019.

Am J Hum Biol 2020 May 28;32(3):e23379. Epub 2019 Dec 28.

University of Kansas.

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May 2020
1.700 Impact Factor

Sports participation improves metabolic profile in adolescents: ABCD growth study.

Am J Hum Biol 2019 Dec 28:e23387. Epub 2019 Dec 28.

Laboratory of Investigation in Exercise - LIVE, Department of Physical Education, UNESP, Presidente Prudente, Brazil.

To analyze the impact of participation in sports with different cardiorespiratory fitness (CRF) demands on changes in metabolic and cardiovascular markers in adolescents. Longitudinal study with 12 months of follow-up (Analysis of Behaviors of Children During Growth [ABCD Growth Study]). Overall, 184 adolescents (age 15. Read More

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http://dx.doi.org/10.1002/ajhb.23387DOI Listing
December 2019

Changes and correlations in height from 7 to 69 years of age across the birth years of 1930 to 1989.

Am J Hum Biol 2019 Dec 26:e23378. Epub 2019 Dec 26.

Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, The Capital Region, Copenhagen, Denmark.

Objectives: The aims of this study were to describe changes in height during childhood and to investigate potential changes in the proportion of children attaining final height in childhood and in correlations between child and adult height across birth cohorts.

Methods: We included 363 059 children (179 906 girls) from the Copenhagen School Health Records Register, who were born between 1930 and 1989, with height measurements at ages 7, 10, or 13 years. Linkages to data resources containing adult height values between ages 18 and 69 years were possible for a subpopulation of 96 133 individuals (23 051 women). Read More

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December 2019

The relationship among the age at menarche, anthropometric characteristics, and socio-economic factors in Bengali girls from Kolkata, India.

Am J Hum Biol 2019 Dec 24:e23380. Epub 2019 Dec 24.

Biological Anthropology Unit, Indian Statistical Institute, Kolkata, India.

Objectives: The aim of the study was to measure the causal effect of selected socio-economic factors and anthropometrical characteristics on the menarche occurrence.

Methods: The sample consisted of 2195 Bengali girls (aged 7-21) from middle-class families, from Kolkata city, India. The age at menarche was recorded from the retrospective data and status quo method. Read More

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http://dx.doi.org/10.1002/ajhb.23380DOI Listing
December 2019