scholarly journals Early life home microbiome and hyperactivity/inattention in school-age children

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Lidia Casas ◽  
Anne M. Karvonen ◽  
Pirkka V. Kirjavainen ◽  
Martin Täubel ◽  
Heidi Hyytiäinen ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Early Life ◽  
Fungal Diversity ◽  
Illumina Miseq ◽  
Shannon Index ◽  
School Age Children ◽  
Sequencing Data ◽  
Logistic Regression Models ◽  
Diversity Measures ◽  
Early Life Exposure

AbstractThis study evaluates the association between indoor microbial diversity early in life and hyperactivity/inattention symptoms in children at ages 10 and 15 years.A random sample enriched with subjects with hyperactivity/inattention at age 15 years was selected from the German LISA birth cohort. Bedroom floor dust was collected at age 3 months and 4 bacterial and fungal diversity measures [number of observed operational taxonomic units (OTUs), Chao1, Shannon and Simpson indices] were calculated from Illumina MiSeq sequencing data. Hyperactivity/inattention was based on the Strengths and Difficulties Questionnaire at ages 10 and 15 (cut-off ≥7). Adjusted associations between 4 diversity measures in tertiles and hyperactivity/inattention were investigated with weighted and survey logistic regression models. We included 226 individuals with information on microbial diversity and hyperactivity/inattention. Early life bacterial diversity was inversely associated with hyperactivity/inattention at age 10 [bacterial OTUs (medium vs low: aOR = 0.4, 95%CI = (0.2–0.8)) and Chao1 (medium vs low: 0.3 (0.1–0.5); high vs low: 0.3 (0.2–0.6)], whereas fungal diversity was directly associated [Chao1 (high vs low: 2.1 (1.1–4.0)), Shannon (medium vs low: 2.8 (1.3–5.8)), and Simpson (medium vs low: 4.7 (2.4–9.3))]. At age 15, only Shannon index was significantly associated with hyperactivity/inattention [bacteria (medium vs low: 2.3 (1.2–4.2); fungi (high vs low: 0.5 (0.3–0.9))]. In conclusion, early life exposure to microbial diversity may play a role in the psychobehavioural development. We observe heterogeneity in the direction of the associations encouraging further longitudinal studies to deepen our understanding of the characteristics of the microbial community underlying the observed associations.

Microbial Diversity in Tobacco Rhizosphere Soil at Different Growth Stages

2021 ◽  
Vol 15 (5) ◽  
pp. 606-614
Author(s):  
Yanan Ruan ◽  
Shengguang Xu ◽  
Zuoxin Tang ◽  
Xiaolin Liu ◽  
Qirui Zhang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Microbial Diversity ◽  
Rhizosphere Soil ◽  
Principal Component ◽  
Alpha Diversity ◽  
Illumina Miseq ◽  
Shannon Index ◽  
Growth Stages ◽  
Soil Microbial Diversity ◽  
Different Growth Stages

Rhizosphere microorganisms are the main participants of material transformation and energy cycle in soil. To further explore its composition and variation, the tobacco rhizosphere soil were sequenced by Illumina MiSeq, the microbial community at different growth stages were analyzed and compared. The analysis of Alpha diversity showed that, the Chao1 index, Shannon index of bacteria and Chao1 index of fungi in rhizosphere soil were the highest in tobacco budding stage, while the peak of Shannon index of fungi appeared in tobacco material stage. Principal component analysis (PCA) further showed that at different growth stages, Proteobacteria was the dominant, followed by Actinobacteria, Acidobacteria and Gemmatimonadetes for bacterials; Ascomycota was the dominant, followed by Zygomycota and Basidiomycota for fungi. Under field conditions, the microbial abundance changed with the growth of tobacco, and the microbial diversity reached the peak at budding stage. The bacterial community and abundance between budding and mature stages was highly similar, while the bacterial community in vigorous growth stage is quite different. The similarity of fungal community in budding stage was very low, compared with the other stages; while in other stages was high. This study provides a theoretical basis for further understanding the relationship between tobacco rhizosphere soil microbial diversity and variation, tobacco growth and soil diseases.

Early-Life Exposure to the Chinese Famine and Risk of Hyperuricemia in Adult Females in Qingdao

2021 ◽  
pp. 1-24
Author(s):  
Yuhan Shao ◽  
Li Liu ◽  
Xiaojing Li ◽  
Jianping Sun ◽  
Xiaomei Huang
Keyword(s):  
Early Life ◽  
Population Based ◽  
Exposed Group ◽  
Childhood And Adolescence ◽  
Cross Sectional ◽  
Logistic Regression Models ◽  
Adult Females ◽  
Early Life Exposure ◽  
Increased Risk ◽  
Famine Exposure

Abstract Purpose: We aimed to explore whether exposure to the Chinese famine in early life was associated with hyperuricemia in adulthood. Methods and Results: Two population-based cross-sectional surveys involving randomly selected Chinese adults aged 35–74 years were conducted in Qingdao, China in 2006 and 2009. 9055 subjects from the two surveys were grouped into four birth groups of fetal/infant exposed(born between 1959/1/1 and 1962/12/31), childhood exposed(born between 1950/1/1 and 1958/12/31), adolescence exposed(born between 1942/1/1 and 1949/12/31) and the unexposed(born before 1941 and after 1963). Multivariate logistic regression models were used to calculate the odd ratios (ORs) and 95% confidence intervals (CIs) of hyperuricemia in different exposed groups. Overall, famine exposure in the fetal/infant period, childhood and adolescence was not associated with adulthood hyperuricemia (all P>0.05). In females, childhood exposed group(OR=1.59, 95%CI:1.25-2.02) and adolescence exposed group(OR=1.74, 95%CI:1.30-2.33) both had higher risks to have hyperuricemia in adult. However, this difference was not found in fetal/infant exposed group. In males, no significant relation was observed in any famine exposed group (all P>0.05). Conclusions: Exposure to famine in childhood and adolescence is associated with an increased risk of hyperuricemia for adulthood of females, but not in males. Adequate nutrition during early life appears to be beneficial to prevent hyperuricemia of adult females.

Chemically Contaminated Eel Fed to Pregnant and Lactating Mouse Dams Causes Hyperactivity in Their Offspring

2016 ◽  
Vol 86 (1-2) ◽  
pp. 36-47 ◽  
Author(s):  
Imen Dridi ◽  
Nidhal Soualeh ◽  
Torsten Bohn ◽  
Rachid Soulimani ◽  
Jaouad Bouayed
Keyword(s):  
Open Field ◽  
Early Life ◽  
Home Cage ◽  
Anguilla Anguilla ◽  
Acetylcholinesterase Activity ◽  
Female Offspring ◽  
Significant Inhibition ◽  
Standard Diet ◽  
Early Life Exposure ◽  
Cage Test

Abstract.This study examined whether perinatal exposure to polluted eels (Anguilla anguilla L.) induces changes in the locomotor activity of offspring mice across lifespan (post-natal days (PNDs) 47 – 329), using the open field and the home cage activity tests. Dams were exposed during gestation and lactation, through diets enriched in eels naturally contaminated with pollutants including PCBs. Analysis of the eel muscle focused on the six non-dioxin-like (NDL) indicator PCBs (Σ6 NDL-PCBs: 28, 52, 101, 138, 153 and 180). Four groups of dams (n = 10 per group) received either a standard diet without eels or eels (0.8 mg/kg/day) containing 85, 216, or 400 ng/kg/day of ϵ6 NDL-PCBs. The open field test showed that early-life exposure to polluted eels increased locomotion in female offspring of exposed dams but not in males, compared to controls. This hyperlocomotion appeared later in life, at PNDs 195 and 329 (up to 32 % increase, p < 0.05). In addition, overactivity was observed in the home cage test at PND 305: exposed offspring females showed a faster overall locomotion speed (3.6 – 4.2 cm/s) than controls (2.9 cm/s, p <0.05); again, males remained unaffected. Covered distances in the home cage test were only elevated significantly in offspring females exposed to highest PCB concentrations (3411 ± 590 cm vs. 1377 ± 114 cm, p < 0.001). These results suggest that early-life exposure to polluted eels containing dietary contaminants including PCBs caused late, persistent and gender-dependent neurobehavioral hyperactive effects in offspring mice. Furthermore, female hyperactivity was associated with a significant inhibition of acetylcholinesterase activity in the hippocampus and the prefrontal cortex.

Prenatal and Early-Life Exposure to Indoor Air-Polluting Factors and Allergic Sensitization at 2 Years of Age

PEDIATRICS ◽  
2020 ◽  
Vol 146 (Supplement 4) ◽  
pp. S332.2-S333
Author(s):  
Suzanne R. Kochis ◽  
Jennifer Dantzer
Keyword(s):  
Indoor Air ◽  
Early Life ◽  
Allergic Sensitization ◽  
Early Life Exposure

Early Life Exposure to Antibiotic Alters Energy Balance during Chronic High-Fat Feeding in Adult Male and Female Mice

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 1999-P ◽  
Author(s):  
HYE LIM NOH ◽  
SUJIN SUK ◽  
RANDALL H. FRIEDLINE ◽  
KUNIKAZU INASHIMA ◽  
DUY A. TRAN ◽  
...  
Keyword(s):  
Energy Balance ◽  
Adult Male ◽  
Early Life ◽  
High Fat ◽  
Male And Female ◽  
Female Mice ◽  
Early Life Exposure ◽  
Fat Feeding

scholarly journals Early Origins of Body Mass in Later Life: Examining Childhood Risks and Adult Pathways

2021 ◽  
pp. 002214652110054
Author(s):  
Sarah A. Mustillo ◽  
Miao Li ◽  
Patricia Morton ◽  
Kenneth F. Ferraro
Keyword(s):  
Physical Activity ◽  
Body Mass ◽  
Health Risks ◽  
Early Life ◽  
Life Experiences ◽  
Later Life ◽  
Childhood Experiences ◽  
Older Adulthood ◽  
Early Life Exposure ◽  
Nationally Representative

Prior research reveals that negative early-life experiences play a major role in the development of obesity in later life, but few studies identify mechanisms that alter the lifetime risk of obesity. This study examines the influence of negative childhood experiences on body mass index (BMI) and obesity (BMI ≥30) during older adulthood and the psychosocial and behavioral pathways involved. Using a nationally representative sample, we examine the influence of cumulative misfortune as well as five separate domains of misfortune on BMI and obesity. Results show that four of the five domains are associated with BMI and obesity either directly, indirectly, or both. The influence of cumulative misfortune on the outcomes is mediated by three adult factors: socioeconomic status, depressive symptoms, and physical activity. The mediators identified here provide targets for intervention among older adults to help offset the health risks of excess BMI attributable of early-life exposure to misfortune.

Early life exposure to phthalates and the development of childhood asthma among Canadian children

2021 ◽  
pp. 110981
Author(s):  
Garthika Navaranjan ◽  
Miriam L. Diamond ◽  
Shelley A. Harris ◽  
Liisa Jantunen ◽  
Sarah Bernstein ◽  
...  
Keyword(s):  
Childhood Asthma ◽  
Early Life ◽  
Early Life Exposure

scholarly journals Bacterial Diversity Analysis and Evaluation Proteins Hydrolysis During the Acid Whey and Fish Waste Fermentation

2021 ◽  
Vol 9 (1) ◽  
pp. 100
Author(s):  
Alba C. Mayta-Apaza ◽  
Israel García-Cano ◽  
Konrad Dabrowski ◽  
Rafael Jiménez-Flores
Keyword(s):  
Microbial Diversity ◽  
Microbial Ecology ◽  
Illumina Miseq ◽  
Human Consumption ◽  
Fish Waste ◽  
Alpha And Beta Diversity ◽  
Analysis And Evaluation ◽  
Dynamic Variations ◽  
Acid Whey ◽  
By Products

The disposal of acid whey (Aw), a by-product from fermented products, is a problem for the dairy industry. The fishery industry faces a similar dilemma, disposing of nearly 50% of fish processed for human consumption. Economically feasible and science-based alternatives are needed to overcome this problem. One possible solution is to add value to the remaining nutrients from these by-products. This study focuses on the breakdown of nutrients in controlled fermentations of Aw, fish waste (F), molasses (M), and a lactic acid bacteria (LAB) strain (Lr). The aim was to assess the dynamic variations in microbial diversity and the biochemical changes that occur during fermentation. Four treatments were compared (AwF, AwFM, AwFLr, and AwFMLr), and the fermentation lasted 14 days at 22.5 °C. Samples were taken every other day. Colorimetric tests for peptide concentrations, pH, and microbial ecology by 16S-v4 rRNA amplicon using Illumina MiSeq were conducted. The results of the microbial ecology showed elevated levels of alpha and beta diversity in the samples at day zero. By day 2 of fermentation, pH dropped, and the availability of a different set of nutrients was reflected in the microbial diversity. The fermentation started to stabilize and was driven by the Firmicutes phylum, which dominated the microbial community by day 14. Moreover, there was a significant increase (3.6 times) in peptides when comparing day 0 with day 14, making this treatment practical and feasible for protein hydrolysis. This study valorizes two nutrient-dense by-products and provides an alternative to the current handling of these materials.

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