A 2013 study found greater
microbial diversity in the gut flora of people who are lean.
Studies have shown that
the microbial diversity in the large intestine reduced when mice were exposed to high levels of stress.
Future Microbiology 10, no. 7 (2015): 1241 - 1255; Doan, T., et al. «Gut
microbial diversity in antibiotic - naive children after systemic antibiotic exposure: A randomized controlled trial.»
Findings: There was decreased
microbial diversity in oesophageal adenocarcinoma tissue compared with tissue from healthy control patients as measured by the observed operational taxonomic unit (OTU) richness (p = 0 · 0012), Chao estimated total richness (p = 0 · 0004), and Shannon diversity index (p = 0 · 0075).
Our findings are potentially applicable to early disease detection, and future test development should focus on longitudinal sampling of the microbiota to monitor for changes in
microbial diversity in a larger cohort of patients.
The Cytosponge detected decreased
microbial diversity in patients with high - grade dysplasia in comparison to control patients, as measured by the observed OTU richness (p = 0 · 0147), Chao estimated total richness (p = 0 · 023), and Shannon diversity index (p = 0 · 0085).
Her work will contribute to future studies on diverse topics such as past climate patterns and
microbial diversity in East Antarctica.
Transmission of commensal intestinal bacteria between humans could promote health by establishing, maintaining and replenishing
microbial diversity in the microbiota of an individual.
This project engages citizen scientists in a study of
microbial diversity in distributed domestic water heaters.
Diet clearly plays an important role in the establishment, growth and maintenance of
microbial diversity in the gut ecosystem, and feeding practices from birth help to modulate this.
This research makes important contributions to the fields of
microbial diversity in extreme environments and bioremediation.
This suggests that the existence of Treponema «is likely a good indicator of a general high level of
microbial diversity in the human gut,» says evolutionary anthropologist Stephanie Schnorr of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany.
His team hypothesized that they'd find greater
microbial diversity in the Inuit study population.
In addition to being fatter, Professor Morris says the cafeteria diet «dramatically altered the microbiota» resulting in rats with much less
microbial diversity in their gut.
They suspected that by increasing
microbial diversity in the gut, probiotics could combat behavioural changes and prevent memory impairment linked to poor diet.
By using a sampling kit and answering a few questions, volunteers help researchers create an atlas of
microbial diversity in homes across the country.
High up a Chilean volcano, there's more
microbial diversity in bone - dry vents than icy patches - which could alter our search for life out in the solar system
At the University of Innsbruck, Austria, where ice and life are her topics, Birgit Sattler's research looks at
microbial diversity in alpine, arctic, and antarctic environments.
Fiber helps to improve digestion by keeping you «regular», provides the body with steady energy, and improves
microbial diversity in the gut (think probiotics).
Not exact matches
We calculated within - and between - group average UniFrac distances to assess the group - specific phylogenetic
diversity of the
microbial communities we observed
in our participants.
The natural world functions best with a rich
diversity of species, both at human scale and
in the
microbial universe.
Huge successes
in the isolation and cultivation of marine
microbial strains have been made by the EC - funded MaCuMBA (Marine Microorganisms: Cultivation Methods for Improving their Biotechnological Applications) project, which aims to uncover the untold
diversity of marine microbes using cultivation - dependent strategies.
He is part of a team cataloging the
microbial diversity of U.S. air —
in which the scientists have picked up, among other things, very small concentrations of bacteria related to anthrax.
In addition, some unlikely - sounding parts of the body — such as the back of the knee and the index finger — have far more
microbial diversity than the gut.
But the
microbial diversity still remained 67 percent lower than that
in mice that had always had a high - fiber life.
A high
diversity of
microbial communities
in the water could also reduce the potential for infection, according to earlier investigations conducted by UFZ researchers and published
in Current Biology.
Currently, researchers analyze
microbial diversity by taking a sample they hope includes the different kinds of bacteria
in the gut.
Jackson's work on
microbial diversity caught the attention of Seed, who was already interested
in the microbiome
in the guts of preterm infants but who did not have a background
in ecology.
«Both malaria and Helicosporidium started out as alga and ended up as intracellular parasites preying on animals, but they have done it
in very different ways,» says Keeling, director of the Centre for
Microbial Diversity and Evolution at UBC and a Senior Fellow of Canadian Institute for Advanced Research.
For their study, they analysed bacteria present
in healthy and ulcerated cattle stomachs and found very few differences
in microbial diversity.
The
microbial diversity present
in the stomachs of cattle has now for the first time been published
in the journal Veterinary Microbiology.
Their findings, published
in The American Society of Microbiology's mSystems journal, say that the pattern of
microbial exchange is «likely circular
in nature,» meaning that captive dragons contribute microbes to their environment, and reacquire these same microbes from their environment, repeating this exchange
in an ongoing cycle without other external sources of
microbial diversity.
Only bacteria
in the Bacteroidaceae and Bifidobacteriaceae families showed cospeciation with their ape hosts, with gut
microbial diversity lowest
in humans and highest
in gorillas.
Understanding the true scope of the planet's
microbial diversity is of interest to the DOE
in order to learn how they can be harnessed for a wide range of energy and environmental challenges.
The
microbial mass
in and on a person may amount to just a few pounds, but
in terms of genetic
diversity these fellow travelers overwhelm their hosts, with 400 genes for every human one.
Interestingly, these semi-captive animals» microbiomes fell right
in between those of the wild and captive doucs, further supporting they hypothesis that lower plant consumption causes loss of
microbial diversity.
«
Diversity of
microbial growth strategies
in a limited nutrient world.»
Controls aged three years and older were characterised by a higher fraction of butyrate - producing species within Clostridium clusters IV and XIVa than was seen
in the corresponding diabetic children or
in children from the younger age groups, while the diabetic children older than three years could be differentiated by having an unusually high
microbial diversity.
An increased
diversity is often associated with unstable or with unusual bacterial networks;
in children with coeliac disease or adults with colorectal cancer an abnormally high
microbial diversity is found.
«Ochman and colleagues show that human evolution was accompanied by both a rapid divergence of the microbiome from the microbiome of apes, and a drastic loss of
diversity of the
microbial community,» says Thomas Bosch of the Christian Albrechts University
in Kiel, Germany.
But the staghorn coral was not so lucky — it experienced a decline
in microbial diversity and increases
in populations of Sphingomonas and Pseudomonas bacteria, both of which are familiar human pathogens.
One explanation for this could be that the greater variations
in environmental conditions, particularly the fluctuating substrate concentration, increased the
diversity of the
microbial community, leading to more functional groups of bacteria.
In his own lab, he is raising nematodes on soil enriched with different types of produce — sugary versus fibrous, for example — and finds that no matter what the food source and the resulting environmental microbial diversity, worms have similar sets of bacteria in their gut
In his own lab, he is raising nematodes on soil enriched with different types of produce — sugary versus fibrous, for example — and finds that no matter what the food source and the resulting environmental
microbial diversity, worms have similar sets of bacteria
in their gut
in their guts.
The Streptococcus pneumoniae Genome
Diversity Project More information about S. pneumoniae, on a site supported by vaccine manufacturer Wyeth - Lederle List of the more than 45
microbial genomes so far completed, with links to others still
in progress
Earlier this year, Stanford University's Justin Sonnenburg found that mice fed a typical Western diet (high
in fat and carbohydrates and low
in fiber) transferred a lower
diversity of beneficial
microbial species to future generations.
Ours is the first comprehensive long - time study that investigates the
microbial load,
diversity and dynamics
in a closed habitat — a mock - up spacecraft — for 520 days, the full duration of a simulated flight to Mars.»
Simultaneous sequence analysis of all organisms
in filtered samples from the Sargasso Sea indicates the presence of over 1800 species, with unexpectedly large
microbial diversity.
«
Microbial diversity is found everywhere from deep sea vents to the human gut or
in association with plant roots.
Last year
microbial ecologist Noah Fierer, now at the University of Colorado at Boulder, sampled bacterial
diversity in 98 different soils across North and South America.
In cultivated areas of the Great Prairie, farmers might choose fertilizers that preserve natural
microbial diversity, yielding plentiful food crops and maximizing carbon capture from the atmosphere.