scholarly journals Diversity in the intestinal microbiota and the influence of delivery, dietary profile and nutritional status

2021 ◽  
Vol 2 (5) ◽  
Author(s):  
Franciele Valduga ◽  
◽  
Malena Rostirola Miri ◽  
Daniela Signori ◽  
Larissa Pereira da Costa ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Gut Microbiota ◽  
School Children ◽  
Alpha Diversity ◽  
Grape Juice ◽  
Anthropometric Parameters ◽  
Culture Methods ◽  
Normal Delivery ◽  
Significant Difference ◽  
Microbiota Diversity

Objective: This research aimed to evaluate the nutritional status and influence on the dietary profile in the gut microbiota, in an attempt to identify possible effects of grape juice consumption among school children aged 6-10. Design: Anthropometric parameters (weight, height, Body Mass Index, waist circumference, triceps, and subscapular skinfold) weremeasured at baseline. A Food Frequency Questionnaire (FFQ) was carried out to evaluate the dietary profile. Feces were analyzed by culture methods and the alpha diversity was determined by the Shannon Index. Participants: 36 volunteer school children aged 6 to 10 years from two different cities in the South of Brazil. Main outcome measure: Gut microbiota diversity according to anthropometric parameters, nutrition profile and delivery patterns. Analysis: For statistical analysis, t or u test and correlation were used through the statistical software SPSS® version 22.0. Results: The volunteers presented a eutrophic nutritional status, but 41.7% in the City 2 were overweight. There was a significant difference in the consumption of polyphenols (p<0.003), microbiotadiversity, breastfeeding, and delivery patterns by city. However, the dietary profile does not include the portions of daily nutrients recommended in both cities. The volunteers from City 1 presented a greater alpha diversity, which may be related to higher micronutrient intake, breastfeeding, and predominant natural/vaginal delivery Conclusion: We observed that the normal delivery and the dietary profile seems to be important factors to the gut microbiota diversity in these children. Keywords: grape juice; dietary profile; gut microbiota.

scholarly journals The Studies to correlation between gut microbiota diversity and functional erectile dysfunction

2021 ◽  
Author(s):  
Qiang Geng ◽  
Shaofeng Chen ◽  
Yuan Sun ◽  
Yu Zhao ◽  
Zhong Li ◽  
...  
Keyword(s):  
Erectile Dysfunction ◽  
Gut Microbiota ◽  
Alpha Diversity ◽  
T Test ◽  
Data Quality Control ◽  
Sequencing Data ◽  
Significant Difference ◽  
Miseq Platform ◽  
Group 3 ◽  
Microbiota Diversity

Abstract Objective: To analyze the distribution of gut microbiota in the ED patients, and explore the relationship between the diversity of gut microbiota and psychogenic erectile dysfunction. Methods: 30 cases of patients with erectile dysfunction (ED) and 30 healthy persons (healthy donor, HD) stool specimen were collected, using Illumina's Miseq platform samples V3-V4 region sequences bacterial 16SrRNA gene Paired end (PE) 300 sequencing, sequencing results were analyzed differences in species composition and diversity. Analysis contains five modules: sequencing data quality control, OTU species clustering and annotation, alpha diversity, beta diversity and the use of T-test and the analysis of the LEfSe differences. Results: 1. The flora diversity in the group of ED than HD significantly different (P<0.01), ED group has a low bacterial diversity. 2. Between ED group and HD group, abundant bacteria (TOPlO) and core flora (90%) had no significant difference in the genus level; all bacteria flora (>1%) display, Alloprevotella groups genus presents differences, Alloprevotella only be identified in the HD group. 3. ED and HD groups present in well separated PCoA analysis, having a significant difference in the two kinds of microflora. 4.T-test shows six species were significantly different, in the ED group, Streptococcus and Subdoligranulum were increasing, and Prevotella, Prevotella sp.9, Blautia, Lachnospiraceae NK4A136 groups and Roseburia were decreasing. 5.LEfSe analysis revealed 24 species were significantly different between ED and HD groups. Conclusion: Gene sequencing was performed on the two groups of specimens and finding that microbial community structure and diversity had significant difference, suggesting that ED have low gut microbiota diversity.

scholarly journals The plant secondary compound swainsonine reshapes gut microbiota in plateau pikas (Ochotona curzoniae)

2021 ◽  
Author(s):  
Shien Ren ◽  
Chao Fan ◽  
Liangzhi Zhang ◽  
Xianjiang Tang ◽  
Haibo Fu ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Artificial Diet ◽  
Alpha Diversity ◽  
Term Treatment ◽  
Short Term Treatment ◽  
Ochotona Curzoniae ◽  
Rdna Sequencing ◽  
Long Term Treatment ◽  
Significant Difference ◽  
Herbivorous Mammals

Abstract Plants produce various plant secondary compounds (PSCs) to deter the foraging of herbivorous mammals. However, little is known about whether PSCs can reshape gut microbiota and promote gut homeostasis of hosts. Using 16S rDNA sequencing to investigate the effects of PSCs on the gut microbiota of small herbivorous mammals, we studied plateau pikas (Ochotona curzoniae) fed diets containing swainsonine (SW) extracted from Oxytropis ochrocephala. Our results showed that both long- and short-term treatment of a single artificial diet in the laboratory significantly reduced alpha diversity and significantly affected beta diversity, core bacteria abundance, and bacterial functions in pikas. After SW was added to the artificial diet, the alpha diversity significantly increased in the long-term treatment, and core bacteria (e.g., Akkermansiaceae) with altered relative abundances in the two treatments showed no significant difference compared with pikas in the wild. The complexity of the co-occurrence network structure was reduced in the artificial diet, but it increased after SW was added in both treatments. Further, the abundances of bacteria related to altered alanine, aspartate, and glutamate metabolism in the artificial diet were restored in response to SW. SW further decreased the concentration of short-chain fatty acids (SCFAs) in both treatments. Our results suggest that PSCs play a key role in regulating gut microbiota community and intestinal homeostasis, thereby maintaining host health. Key points • Swainsonine improves the intestinal bacterial diversity of plateau pikas. • Swainsonine promotes the recovery of core bacterial abundances in the gut of plateau pikas. • Swainsonine promotes the restoration of intestinal bacterial functions of plateau pikas.

scholarly journals Selective estrogen receptor modulator lasofoxifene suppresses spondyloarthritis manifestation and affects characteristics of gut microbiota in zymosan-induced SKG mice

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hyemin Jeong ◽  
In Young Kim ◽  
Eun-Kyung Bae ◽  
Chan Hong Jeon ◽  
Kwang-Sung Ahn ◽  
...  
Keyword(s):  
Estrogen Receptor ◽  
Gut Microbiota ◽  
Small Animal ◽  
Joint Inflammation ◽  
Fecal Calprotectin ◽  
Selective Estrogen Receptor Modulator ◽  
Mineral Density ◽  
Receptor Modulator ◽  
Significant Difference ◽  
Microbiota Diversity

AbstractAnkylosing spondylitis is a male-predominant disease and previous study revealed that estrogens have an anti-inflammatory effect on the spondyloarthritis (SpA) manifestations in zymosan-induced SKG mice. This study aimed to evaluate the effect of selective estrogen receptor modulator (SERM) lasofoxifene (Laso) on disease activity of SpA. Mice were randomized into zymosan-treated, zymosan + 17β-estradiol (E2)-treated, and zymosan + Laso-treated groups. Arthritis was assessed by 18F-fluorodeoxyglucose (18F-FDG) small-animal positron emission tomography/computed tomography and bone mineral density (BMD) was measured. Fecal samples were collected and 16S ribosomal RNA gene sequencing was used to determine gut microbiota differences. Both zymosan + E2-treated mice and zymosan + Laso-treated mice showed lower arthritis clinical scores and lower 18F-FDG uptake than zymosan-treated mice. BMD was significantly higher in zymosan + E2-treated mice and zymosan + Laso-treated mice than zymosan-treated mice, respectively. Fecal calprotectin levels were significantly elevated at 8 weeks after zymosan injection in zymosan-treated mice, but it was not significantly changed in zymosan + E2-treated mice and zymosan + Laso-treated mice. Gut microbiota diversity of zymosan-treated mice was significantly different from zymosan + E2-treated mice and zymosan + Laso-treated mice, respectively. There was no significant difference in gut microbiota diversity between zymosan + E2-treated mice and zymosan + Laso -treated mice. Laso inhibited joint inflammation and enhanced BMD in SKG mice, a model of SpA. Laso also affected the composition and biodiversity of gut microbiota. This study provides new knowledge regarding that selected SpA patients could benefit from SERM treatment.

scholarly journals Nutritional Status of Participating and Non-participating Pupils in the Ghana School Feeding Programme

2012 ◽  
Vol 1 (3) ◽  
pp. 263 ◽  
Author(s):  
A. O. Danquah ◽  
A. N. Amoah ◽  
M. Steiner-Asiedu ◽  
C. Opare-Obisaw
Keyword(s):  
Nutritional Status ◽  
School Children ◽  
Protein Energy Malnutrition ◽  
School Lunch ◽  
Nutrient Deficiencies ◽  
Demographic Health Survey ◽  
School Feeding ◽  
Protein Energy ◽  
Significant Difference ◽  
Better Than

The Ghana Demographic Health Survey indicates that the major nutritional challenges in Ghana among school children are protein-energy malnutrition and micro-nutrient deficiencies. School Feeding Programmes are one of the main interventions addressing malnutrition and its related effects on children’s health and education. The purpose of this study was to assess the influence of Ghana School Feeding Programme on nutritional status of school children in Atwima-Nwabiagya District of Ashanti Region, Ghana. A total of 234 pupils between 9 and 17 years of age, comprising 114 participants and 120 non-participants from three participating and three non-participating schools, respectively, with similar characteristics, took part in the study. It was hypothesized that the nutritional status of participants was better than that of non-participants. Results did not indicate any association between the school lunch and nutritional status. There was no statistically significant difference in the nutritional status of participants and non-participants. The programme did not impact the nutritional status of participants.

scholarly journals Gut bacterial microbiota in patients with myasthenia gravis: results from the MYBIOM study

2021 ◽  
Vol 14 ◽  
pp. 175628642110356
Author(s):  
Andreas Totzeck ◽  
Elakiya Ramakrishnan ◽  
Melina Schlag ◽  
Benjamin Stolte ◽  
Kathrin Kizina ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Myasthenia Gravis ◽  
Healthy Volunteers ◽  
Alpha Diversity ◽  
Diversity Indices ◽  
Rrna Gene ◽  
Pilot Studies ◽  
Variable Regions ◽  
Alpha And Beta Diversity ◽  
Significant Difference

Background: Myasthenia gravis (MG) is an autoimmune neuromuscular disease, with gut microbiota considered to be a pathogenetic factor. Previous pilot studies have found differences in the gut microbiota of patients with MG and healthy individuals. To determine whether gut microbiota has a pathogenetic role in MG, we compared the gut microbiota of patients with MG with that of patients with non-inflammatory and inflammatory neurological disorders of the peripheral nervous system (primary endpoint) and healthy volunteers (secondary endpoint). Methods: Faecal samples were collected from patients with MG ( n = 41), non-inflammatory neurological disorder (NIND, n = 18), chronic inflammatory demyelinating polyradiculoneuropathy (CIDP, n = 6) and healthy volunteers ( n = 12). DNA was isolated from these samples, and the variable regions of the 16S rRNA gene were sequenced and statistically analysed. Results: No differences were found in alpha- and beta-diversity indices computed between the MG, NIND and CIDP groups, indicating an unaltered bacterial diversity and structure of the microbial community. However, the alpha-diversity indices, namely Shannon, Chao 1 and abundance-based coverage estimators, were significantly reduced between the MG group and healthy volunteers. Deltaproteobacteria and Faecalibacterium were abundant within the faecal microbiota of patients with MG compared with controls with non-inflammatory diseases. Conclusion: Although the overall diversity and structure of the gut microbiota did not differ between the MG, NIND and CIDP groups, the significant difference in the abundance of Deltaproteobacteria and Faecalibacterium supports the possible role of gut microbiota as a contributor to pathogenesis of MG. Further studies are needed to confirm these findings and to develop possible treatment strategies.

scholarly journals Characterization of the Gut Microbiota of Individuals at Different T2D Stages Reveals a Complex Relationship with the Host

2020 ◽  
Vol 8 (1) ◽  
pp. 94 ◽  
Author(s):  
Alejandra Chávez-Carbajal ◽  
María Luisa Pizano-Zárate ◽  
Fernando Hernández-Quiroz ◽  
Guillermo Federico Ortiz-Luna ◽  
Rosa María Morales-Hernández ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Metabolic Pathways ◽  
Dietary Intervention ◽  
Metabolic Characteristics ◽  
Significant Difference ◽  
Bacterial Richness ◽  
Microbiota Diversity ◽  
Improve Glucose Tolerance ◽  
M 14

In this work, we studied 217 Mexican subjects divided into six groups with different stages of glucose intolerance: 76 Controls (CO), 54 prediabetes (PRE), 14 T2D no medication (T2D−No−M), 14 T2D with Metformin (T2D−M), 22 T2D with polypharmacy (T2D−P), and 37 T2D with polypharmacy and insulin (T2D−P+I). We aimed to determine differences in the gut microbiota diversity for each condition. At the phylum level, we found that Firmicutes and Bacteroidetes outline major changes in the gut microbiota. The gut bacterial richness and diversity of individuals in the T2D−No−M group were lesser than other groups. Interestingly, we found a significant difference in the beta diversity of the gut microbiota among all groups. Higher abundance was found for Comamonadaceae in PRE, and Sutterella spp. in T2D−No−M. In addition, we found associations of specific microbial taxa with clinical parameters. Finally, we report predicted metabolic pathways of gut microbiota linked to T2D−M and PRE conditions. Collectively, these results indicate that each group has specific predicted metabolic characteristics and gut bacteria populations for each phenotype. The results of this study could be used to define strategies to modulate gut microbiota through noninvasive treatments, such as dietary intervention, probiotics or prebiotics, and to improve glucose tolerance of individuals with prediabetes or T2D.

scholarly journals Cohabitation is associated with a greater resemblance in gut microbiota which can impact cardiometabolic and inflammatory risk

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Casey T. Finnicum ◽  
Jeffrey J. Beck ◽  
Conor V. Dolan ◽  
Christel Davis ◽  
Gonneke Willemsen ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Environmental Influence ◽  
Alpha Diversity ◽  
P Value ◽  
Genetic Profile ◽  
Microbiota Composition ◽  
Significant Difference ◽  
Mz Twins ◽  
Gut Microbiota Composition ◽  
Inflammatory Burden

Abstract Background The gut microbiota composition is known to be influenced by a myriad of factors including the host genetic profile and a number of environmental influences. Here, we focus on the environmental influence of cohabitation on the gut microbiota as well as whether these environmentally influenced microorganisms are associated with cardiometabolic and inflammatory burden. We perform this by investigating the gut microbiota composition of various groups of related individuals including cohabitating monozygotic (MZ) twin pairs, non-cohabitating MZ twin pairs and spouse pairs. Results A stronger correlation between alpha diversity was found in cohabitating MZ twins (45 pairs, r = 0.64, p = 2.21 × 10− 06) than in non-cohabitating MZ twin pairs (121 pairs, r = 0.42, p = 1.35 × 10− 06). Although the correlation of alpha diversity did not attain significance between spouse pairs (42 pairs, r = 0.23, p = 0.15), the correlation was still higher than those in the 209 unrelated pairs (r = − 0.015, p = 0.832). Bray-Curtis (BC) dissimilarity metrics showed cohabitating MZ twin pairs had the most similar gut microbiota communities which were more similar than the BC values of non-cohabitating MZ twins (empirical p-value = 0.0103), cohabitating spouses (empirical p-value = 0.0194), and pairs of unrelated non-cohabitating individuals (empirical p-value< 0.00001). There was also a significant difference between the BC measures from the spouse pairs and those from the unrelated non-cohabitating individuals (empirical p-value< 0.00001). Intraclass correlation coefficients were calculated between the various groups of interest and the results indicate the presence of OTUs with an environmental influence and one OTU that appeared to demonstrate genetic influences. One of the OTUs (Otu0190) was observed to have a significant association with both the cardiometabolic and inflammatory burden scores (p’s < 0.05). Conclusions Through the comparison of the microbiota contents of MZ twins with varying cohabitation status and spousal pairs, we showed evidence of environmentally influenced OTUs, one of which had a significant association with cardiometabolic and inflammatory burden scores.

scholarly journals Effects of Sleep Deprivation on Weight Loss and Gut Microbiota Diversity in Obese Patients on a Calorie Restrict Diet

2021 ◽  
Author(s):  
Surong Wen ◽  
Yaojun Ni ◽  
Ziyu Liu ◽  
Xiaoqing Wang ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Weight Loss ◽  
Gut Microbiota ◽  
Sleep Deprivation ◽  
High Throughput Sequencing ◽  
Resistance Index ◽  
The Body ◽  
Obese Patients ◽  
Anthropometric Parameters ◽  
Deprivation Group ◽  
Microbiota Diversity

Abstract Objective: This study aimed to investigate the effects of sleep deprivation (SD) on the weight loss and gut microbiota diversity in obese patients on a calorie restrict diet (CRD). Methods: Twenty obese patients who were divided into two groups: sleep deprivation group(SD group,n=10) and non-sleep deprivation group(NSD group ,n=10). All the patients received CRD for twelve weeks. Measurement of anthropometric parameters, biochemical examinations and gut microbiota detection were done at baseline and the end of week 12. MI Bands were used to monitor the sleep and exercise. Body shape parameters were measured by using the JAWON ioi353. The gut microbiota was examined by PCR in the v3-v5 region of 16S rDNA gene, and high-throughput sequencing was carried out on the Illumina Miseq platform. The operational taxonomic units (OTUs) was used for analysis. Results: 1. CRD improved the body weight (BW) , waist circumference(WC), blood pressure (BP),basal metabolic rate (BMR) ,body fat content(BFC),and Insulin resistance index (HOMA-IR) in all obese patients. 2. In the NSD group, the BW, BFC, VFA, BMR and total cholesterol (TC) reduced significantly when compared with the NSD group after CRD intervention (P<0.05). 3. The Alpha diversity of gut microbiota remained unchanged after the intervention in two groups after CRD intervention. 4. There was a negative correlation between Mollicutes and BMR in the NSD group. Conclusion: The effects of CRD may be weaken by SD in weight loss and the metabolism of blood lipid. Mollicutes bacteria may be related to the weight loss after CRD intervention in obese patients.

scholarly journals Body composition of New Zealand European and Pacific women is associated with lower dietary fibre intake and gut microbiota diversity

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Nikki Renall ◽  
Benedikt Merz ◽  
Blair Lawley ◽  
Gerald W. Tannock ◽  
Marine Corbin ◽  
...  
Keyword(s):  
Body Composition ◽  
New Zealand ◽  
Gut Microbiota ◽  
Dietary Intake ◽  
Body Fat ◽  
Dietary Fibre ◽  
Alpha Diversity ◽  
Model Assessment ◽  
Positive Effects ◽  
Microbiota Diversity

AbstractDiet is considered one of the key drivers of the world-wide obesity epidemic, and the gut microbiota may play a role in this multifaceted disease due to their mutualistic relationship. This study investigated relationships between habitual dietary intake of New Zealand European and Pacific women and their gut microbiota and body fat content. Pacific (44%) and NZ European (NZE; 56%) women (n = 287) aged 18–45 years were recruited based on body mass index (normal versus obese) and stratified as low (< 35%) or high (≥ 35%) body fat percentage (BF%). Dietary intake was assessed with a 5-day estimated food record and a semi-quantitative food frequency questionnaire, which were used to calculate habitual dietary intake using the National Cancer Institute (NCI) method. BF% was assessed by dual-energy x-ray absorptiometry (DXA). Fasting blood samples were analysed for markers of insulin sensitivity. The DNA from faecal samples was analysed following shotgun sequencing. There were no significant differences in BF% between Pacific and NZE women (p = 0.498). Significant differences in homeostasis model assessment of insulin resistance (HOMA-IR) index were observed between Pacific (3.4 [2.3, 5.9]) and NZE (2.1 [1.5, 3.1], p ≤ 0.001) women, and between; low-BF% (1.9 [1.3, 2.7]) and high-BF% (3.4 [2.5, 5.9], p ≤ 0.001) groups. The highest (27.6g/d [24.9, 30.6]) compared to the lowest tertile (16g/d [13.3, 17.6]) of habitual total dietary fibre (DF) intake was associated with a significantly lower HOMA-IR (2.1 [1.3, 3.1] versus 3.3 [2.1, 5.3] p ≤ 0.001) respectively. Higher DF intake was also associated with significantly lower BF% (β -0.35, p ≤ 0.001), and this relationship became stronger when considering the intake of other macronutrients (β -0.47, p ≤ 0.001). Alpha diversity; observed taxonomic units (OTU's; rs = -0.15, p = 0.011), Pielou's evenness (rs = -0.20, p = 0.001), and Shannon index (rs = -0.22, p ≤ 0.001), were all negatively correlated with BF%. In contrast BF% was positively correlated with the Firmicutes:Bacteroidetes ratio (rs = 0.26, p ≤ 0.001). HOMA-IR index was significantly higher in Pacific and women in the higher BF% group, indicating an increased metabolic disease risk. Higher habitual DF intake was associated with lower BF% and HOMA-IR, suggesting a potential metabolically protective effect. The positive effects of higher DF intake may be associated with microbiota diversity, as higher BF% was associated with reduced alpha diversity and an increased Firmicutes:Bacteroidetes ratio. Further analysis will explore which foods contributed to the higher DF intake, and associations with body composition, microbiota and biomarkers of metabolic health.

scholarly journals Effects of tobacco smoke and electronic cigarette vapor exposure on the oral and gut microbiota in humans: a pilot study

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4693 ◽  
Author(s):  
Christopher J. Stewart ◽  
Thomas A. Auchtung ◽  
Nadim J. Ajami ◽  
Kenia Velasquez ◽  
Daniel P. Smith ◽  
...  
Keyword(s):  
Pilot Study ◽  
Gut Microbiota ◽  
Tobacco Smoking ◽  
Electronic Cigarettes ◽  
Alpha Diversity ◽  
Rrna Gene ◽  
Cross Sectional ◽  
Buccal Swabs ◽  
Significant Difference

BackgroundThe use of electronic cigarettes (ECs) has increased drastically over the past five years, primarily as an alternative to smoking tobacco cigarettes. However, the adverse effects of acute and long-term use of ECs on the microbiota have not been explored. In this pilot study, we sought to determine if ECs or tobacco smoking alter the oral and gut microbiota in comparison to non-smoking controls.MethodsWe examined a human cohort consisting of 30 individuals: 10 EC users, 10 tobacco smokers, and 10 controls. We collected cross-sectional fecal, buccal swabs, and saliva samples from each participant. All samples underwent V4 16S rRNA gene sequencing.ResultsTobacco smoking had a significant effect on the bacterial profiles in all sample types when compared to controls, and in feces and buccal swabs when compared to EC users. The most significant associations were found in the gut, with an increased relative abundance ofPrevotella(P= 0.006) and decreasedBacteroides(P= 0.036) in tobacco smokers. The Shannon diversity was also significantly reduced (P= 0.009) in fecal samples collected from tobacco smokers compared to controls. No significant difference was found in the alpha diversity, beta-diversity or taxonomic relative abundances between EC users and controls.DiscussionFrom a microbial ecology perspective, the current pilot data demonstrate that the use of ECs may represent a safer alternative compared to tobacco smoking. However, validation in larger cohorts and greater understanding of the short and long-term impact of EC use on microbiota composition and function is warranted.

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