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Daily skin-to-skin contact alters microbiota development in healthy full-term infants.
Eckermann, HA, Meijer, J, Cooijmans, K, Lahti, L, de Weerth, C
Gut microbes. 2024;16(1):2295403
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The gut microbiome develops in early life and is influenced by several different factors. Skin-to-skin contact (SSC), whereby an infant and mother have bare skin contact, has been shown to be associated with improved brain and heart development, decreased anxiety and stress, and longer breast-feeding duration. In animals, SSC has also been shown to alter the infants gut microbiota, but this has not been investigated in humans. This study of 116 infant-mother pairs aimed to determine the effect of SSC compared to normal care on the infant gut microbiome and the gut-brain connection. The results showed that there was an overall difference in microbiota diversity between SSC and normal care infants in early but not late infancy. The development of the gut microbiota was also affected in early and late infancy. In SSC infants there was a lower abundance of Faecalibacterium, Eubacterium hallii, and Rothia and higher abundance of Flavonifractor, Lacticaseibacillus, Bacteroides and Megasphaera compared to the normal care infants. Some gut-brain communication pathways differed between the two groups including those associated with anxiety and stress. It was concluded that SSC may influence gut microbiota development. This study could be used by healthcare professionals to understand that SSC can alter the infants gut microbiome, however further studies are required to determine the significance of this.
Abstract
The gut microbiota is vital for human body development and function. Its development in early life is influenced by various environmental factors. In this randomized controlled trial, the gut microbiota was obtained as a secondary outcome measure in a study on the effects of one hour of daily skin-to-skin contact (SSC) for five weeks in healthy full-term infants. Specifically, we studied the effects on alpha/beta diversity, volatility, microbiota maturation, and bacterial and gut-brain-axis-related functional abundances in microbiota assessed thrice in the first year. Pregnant Dutch women (n = 116) were randomly assigned to the SSC or care-as-usual groups. The SSC group participants engaged in one hour of daily SSC from birth to five weeks of age. Stool samples were collected at two, five, and 52 weeks and the V4 region was sequenced. We observed significant differences in the microbiota composition, bacterial abundances, and predicted functional pathways between the groups. The SSC group exhibited lower microbiota volatility during early infancy. Microbiota maturation was slower in the SSC group during the first year and our results suggested that breastfeeding duration may have partially mediated this relation. Our findings provide evidence that postpartum SSC may influence microbiota development. Replication is necessary to validate and generalize these results. Future studies should include direct stress measurements and extend microbiota sampling beyond the first year to investigate stress as a mechanism and research SSC's impact on long-term microbiota maturation trajectories.
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Normalization of Plus Size and the Danger of Unseen Overweight and Obesity in England.
Muttarak, R
Obesity (Silver Spring, Md.). 2018;26(7):1125-1129
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In the United Kingdom more than 25% of adults are classified as clinically obese, thus leading to a normalisation of overweight and obesity. As being 'plus size' becomes more common, there is an increase in weight status misperception that can potentially undermine the recognition of being overweight and its health consequences. The aim of this study was to explore the trends and socio-demographic factors underlying perceived weight status among the overweight or obese population in England. A cross-sectional study was done to collect data through face-to-face interviews and a self-completion questionnaire. The findings of this study showed that there is an increasing trend in misperceiving weight status between both men and women. The authors’ conclude this is possibly reflective of the normalisation of overweight and obesity and that it is vital for obesity prevention programs to consider socioeconomic inequalities for program effectiveness.
Abstract
OBJECTIVE This study aimed to investigate trends and sociodemographic factors underlying weight misperception in adults with overweight and obesity in England. METHODS This study used descriptive and logistic regression analyses based on a pooled nationally representative cross-sectional survey, Health Survey for England, for the years 1997, 1998, 2002, 2014, and 2015 of individuals with BMI ≥ 25 (n = 23,459). The main outcomes were (1) weight misperception and (2) weight-loss attempts as well as the associations with demographic and socioeconomic characteristics and health status. RESULTS The proportion of individuals with overweight and obesity misperceiving their weight status increased over time between 1997 and 2015 (37% to 40% in men; 17% to 19% in women). There were socioeconomic disparities in the misperception of weight status, with lower-educated individuals from poorer-income households and members of minority ethnic groups being more likely to underestimate their weight. Those underestimating their overweight and obesity status were 85% less likely to try to lose weight compared with people who accurately identified their weight status. CONCLUSIONS The upward trend in underassessment of overweight and obesity status in England is possibly a result of the normalization of overweight and obesity. Obesity prevention programs need to consider differential sociodemographic characteristics associated with underassessment of weight status.
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Does additional support provided through e-mail or SMS in a Web-based Social Marketing program improve children's food consumption? A Randomized Controlled Trial.
Rangelov, N, Della Bella, S, Marques-Vidal, P, Suggs, LS
Nutrition journal. 2018;17(1):24
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Nutrition programmes designed for children are often difficult to implement and monitor as parents exert a powerful influence on eating habits. The World Health Organization has started to recommend Social Marketing as a way to promote a healthy diet and other lifestyle behaviours, however it is not currently clear to what extent text or email directed to parents can improve children’s eating behaviour. The aim of this randomised trial was to examine the effect of a Social Marketing healthy nutrition program on children’s food intake, while also considering whether additional support through text or email resulted in additional positive change in 608 children. Families were randomised to one of three groups, where the parent received intervention by Web, Web and email or Web and text, and children’s food consumption was assessed using a food diary. This study showed a Social Marketing tailored program for parents delivered through the Web and complemented with letters directed to children can improve children’s eating behaviours. The additional use of text and email did not significantly improve positive behaviour change.
Abstract
BACKGROUND The FAN Social Marketing program was developed to improve dietary and physical activity habits of families with children in Ticino, Switzerland. The aim of this study was to examine if the effects of the program on children's food intake differed by intervention group. METHODS Effects of the FAN program were tested through a Randomized Controlled Trial. The program lasted 8 weeks, during which participants received tailored communication about nutrition and physical activity. Families were randomly allocated to one of three groups, where the parent received the intervention by the Web (G1), Web + e-mail (G2) or Web + SMS (G3). Children in all groups received tailored print letters by post. Children's food consumption was assessed at baseline and immediate post intervention using a 7-day food diary. Generalized linear mixed models with child as a random effect and with time, treatment group, and the time by treatment interaction as fixed effects were used to test the impact of the intervention. RESULTS Analyses were conducted with a sample of 608 children. After participating in FAN the marginal means of daily consumption of fruit changed from 0.95 to 1.12 in G1, from 0.82 to 0.94 in G2, and from 0.93 to 1.18 in G3. The margins of the daily consumption of sweets decreased in each group (1.67 to 1.56 in G1, 1.71 to 1.49 in G2, and 1.72 to 1.62 in G3). The change in vegetable consumption observed from pre to post intervention in G3 (from 1.13 to 1.21) was significantly different from that observed in G1 (from 1.21 to 1.17). CONCLUSIONS A well-designed Web-based Social Marketing intervention complemented with print letters can help improve children's consumption of water, fruit, soft drinks, and sweets. The use of SMS to support greater behavior change, in addition to Web-based communication, resulted only in a small significant positive change for vegetables, while the use of e-mail in addition to Web did not result in any significant difference. TRIAL REGISTRATION The trial was retrospectively registered in the ISRCTN registry (ID ISRCTN48730279 ).
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Eating at food outlets and leisure places and "on the go" is associated with less-healthy food choices than eating at home and in school in children: cross-sectional data from the UK National Diet and Nutrition Survey Rolling Program (2008-2014).
Ziauddeen, N, Page, P, Penney, TL, Nicholson, S, Kirk, SF, Almiron-Roig, E
The American journal of clinical nutrition. 2018;107(6):992-1003
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Poor diet in childhood and adolescence has been recognised as a risk factor for obesity during adulthood. Public health research has found the food environment to be an important determinant of diet, specifically for this age group, and the major environments are home, school, and food outlets/leisure places. The aim of this cross-sectional study is to provide a comprehensive analysis of the types of food consumed in each environment based on data from 4636 children and adolescents in the United Kingdom. This study showed the most common eating location across all age groups was at home, and this was associated with less sugar and takeaway food consumption. Based on these results, the authors conclude that home and school are both important areas to target for public health policy, however also highlight the importance of providing healthier food options for adolescents outside of these environments.
Abstract
Background: Where children eat has been linked to variations in diet quality, including the consumption of low-nutrient, energy-dense food, a recognized risk factor for obesity. Objective: The aim of this study was to provide a comprehensive analysis of consumption patterns and nutritional intake by eating location in British children with the use of a nationally representative survey. Design: Cross-sectional data from 4636 children (80,075 eating occasions) aged 1.5-18 y from the UK National Diet and Nutrition Survey Rolling Program (2008-2014) were analyzed. Eating locations were categorized as home, school, work, leisure places, food outlets, and "on the go." Foods were classified into core (considered important or acceptable within a healthy diet) and noncore (all other foods). Other variables included the percentage of meals eaten at home, sex, ethnicity, body mass index, income, frequency of eating out, takeaway meal consumption, alcohol consumption, and smoking. Results: The main eating location across all age groups was at home (69-79% of eating occasions), with the highest energy intakes. One-third of children from the least-affluent families consumed ≤25% of meals at home. Eating more at home was associated with less sugar and takeaway food consumption. Eating occasions in leisure places, food outlets, and "on the go" combined increased with age, from 5% (1.5-3 y) to 7% (11-18 y), with higher energy intakes from noncore foods in these locations. The school environment was associated with higher intakes of core foods and reduced intakes of noncore foods in children aged 4-10 y who ate school-sourced foods. Conclusions: Home and school eating are associated with better food choices, whereas other locations are associated with poor food choices. Effective, sustained initiatives targeted at behaviors and improving access to healthy foods in leisure centers and food outlets, including food sold to eat "on the go," may improve food choices. Home remains an important target for intervention through family and nutrition education, outreach, and social marketing campaigns. This trial was registered with the ISRTCN registry (https://www.isrctn.com) as ISRCTN17261407.
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Impact of probiotic Saccharomyces boulardii on the gut microbiome composition in HIV-treated patients: A double-blind, randomised, placebo-controlled trial.
Villar-García, J, Güerri-Fernández, R, Moya, A, González, A, Hernández, JJ, Lerma, E, Guelar, A, Sorli, L, Horcajada, JP, Artacho, A, et al
PloS one. 2017;12(4):e0173802
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Recent studies have shown that HIV severely damages the gastrointestinal (GI) mucosal barrier, resulting in microbes passing from the GI tract to the circulatory system leading to chronic inflammation. The aim of this randomised double blind study was to analyse the beneficial effects of probiotic supplementation on the gut microbiome composition. 44 chronic HIV infected patients were treated with 12 weeks of specific strain of probiotic called Saccharomyces Boulardii. The authors found that supplementation with the probiotic changed the composition of gut microbiome, with a decrease in pathogenic bacteria observed in the study group. However, no correlation could be established with regard to inflammation. The authors concluded that identifying the pro inflammatory species in the gut can be the markers of poor immune response.
Abstract
Dysbalance in gut microbiota has been linked to increased microbial translocation, leading to chronic inflammation in HIV-patients, even under effective HAART. Moreover, microbial translocation is associated with insufficient reconstitution of CD4+T cells, and contributes to the pathogenesis of immunologic non-response. In a double-blind, randomised, placebo-controlled trial, we recently showed that, compared to placebo, 12 weeks treatment with probiotic Saccharomyces boulardii significantly reduced plasma levels of bacterial translocation (Lipopolysaccharide-binding protein or LBP) and systemic inflammation (IL-6) in 44 HIV virologically suppressed patients, half of whom (n = 22) had immunologic non-response to antiretroviral therapy (<270 CD4+Tcells/μL despite long-term suppressed viral load). The aim of the present study was to investigate if this beneficial effect of the probiotic Saccharomyces boulardii is due to modified gut microbiome composition, with a decrease of some species associated with higher systemic levels of microbial translocation and inflammation. In this study, we used 16S rDNA gene amplification and parallel sequencing to analyze the probiotic impact on the composition of the gut microbiome (faecal samples) in these 44 patients randomized to receive oral supplementation with probiotic or placebo for 12 weeks. Compared to the placebo group, in individuals treated with probiotic we observed lower concentrations of some gut species, such as those of the Clostridiaceae family, which were correlated with systemic levels of bacterial translocation and inflammation markers. In a sub-study of these patients, we observed significantly higher parameters of microbial translocation (LBP, soluble CD14) and systemic inflammation in immunologic non-responders than in immunologic responders, which was correlated with a relative abundance of specific gut bacterial groups (Lachnospiraceae genus and Proteobacteria). Thus, in this work, we propose a new therapeutic strategy using the probiotic yeast S. boulardii to modify gut microbiome composition. Identifying pro-inflammatory species in the gut microbiome could also be a useful new marker of poor immune response and a new therapeutic target.