Over the last five years a ton of research has been performed
on human gut flora and its importance to overall health.
Influence of fecal collection conditions and 16S rRNA gene sequencing at two centers
on human gut microbiota analysis — Jocelyn Sietsma Penington — Scientific Reports
Nelson and her team led the first human microbiome study
on the human gut which was published in the journal Science in 2006.
A valuable result of this work, they both agree, is that it sets up a way to test the effects of microbial therapies
on human gut bacteria (even though the bugs are living in a mouse).
Bioaugmentation — taking existing beneficial bacteria, culturing them, and then adding more of them back into a biological system (not too different from eating probiotic yogurt for its purported beneficial effects
on the human gut)-- is the key to restoring amphibian populations.
Not exact matches
To find out what was going
on in the microbiomes of four sets of differently shaped identical twins, researchers transferred some
gut bacteria from a lean (
human) twin to a sterile mouse: one with no foreign bacteria at all.
He responded by relating the parable of the Good Samaritan, one of my personal favorites... bear traps are hidden, and often unseen till bear or
human are caught in them... the traps are deliberately placed, they don't just suddenly appear... the answer to the question was the man who had compassion
on the man taken by robbers... he was a social and spiritual outcast who had compassion
on someone who in normal circumstances would have hated his
guts... because his doctrine and «lifestyle» were not acceptable to the religious establishment... I have had life experiences that bear this out, experiencing love and compassion from people whom today's religious establishment demonizes and looks down upon... any reading of the Good Samaritan story should be followed up by a reading of 1 Corinthians 13....
In a recent interview with Gary
Gutting for the New York Times, Tim Maudlin, professor of philosophy at NYU, rejects arguments based
on cosmology that seek to show that
human beings have any special place: «No one looking at the vast extent of the universe and the completely random location of homo sapiens within it (in both space and time) could seriously maintain that the whole thing was intentionally created for us.
As a Christian who believes in the great importance of
human beings to God, Gingerich admits that his «
gut reaction is to disparage» the idea of life
on other worlds.
But I forget sometimes that you don't operate
on facts, just
gut assumptions and blind faith in Fox pundits who have poisoned your heart against your fellow
humans.
Using a «gnotobiotic mouse model» — where mice were «colonized with a synthetic
human gut microbiota composed of fully sequenced commensal bacteria» — Desai et al reported
on the effects of different diets with different fibre content.
There is growing interest in the role of the
gut microbiome and its effect
on human health.
Previous studies have shown that a high fat maternal diet during gestation and lactation has a long - term impact
on the infant's
gut microbiome (the community of bacteria living inside the
human gut.)
In a study to be presented Thursday, Jan. 26, in the oral plenary session at 1:15 p.m. PST, at the Society for Maternal - Fetal Medicine's annual meeting, The Pregnancy Meeting ™, researchers with Baylor College of Medicine, Houston, Texas and University of California, San Diego, La Jolla, California, will present their findings
on a study titled, Maternal Diet Structures the Breast Milk Microbiome in Association with
Human Milk Oligosaccharides and
Gut - Associated Bacteria.
The alternative is the
gutting or abolition of the Act, and a withdrawl from the European Convention
on Human Rights, which the Conservatives are threatening to do (David Cameron even had a populist pop at the idea of human rights in a conference speech before he became Prime Minis
Human Rights, which the Conservatives are threatening to do (David Cameron even had a populist pop at the idea of
human rights in a conference speech before he became Prime Minis
human rights in a conference speech before he became Prime Minister).
The team found that the microbes lurking
on the forearm, palm, index finger, back of the knee and sole of the foot were often more diverse than those in the
gut, «traditionally considered to be very diverse», says David Relman, who researches
human microbial ecology at Stanford University in California but was not involved in the research.
Now, a team at the Wyss Institute for Biologically Inspired Engineering at Harvard University co-led by Wyss Institute Founding Director Donald Ingber, M.D., Ph.D., and Wyss Core Faculty member James Collins, Ph.D., has leveraged the Institute's proprietary
human - organs -
on - chips technology to microengineer a model of
human intestinal inflammation and bacterial overgrowth in a
human -
gut -
on - a-chip.
«Cultural revolution in the study of the
gut microbiome:
Human gut - on - a-chip technology used to co-culture gut microbiome, human intestinal cells could lead to new therapies for inflammatory bowel diseases.&r
Human gut -
on - a-chip technology used to co-culture
gut microbiome,
human intestinal cells could lead to new therapies for inflammatory bowel diseases.&r
human intestinal cells could lead to new therapies for inflammatory bowel diseases.»
Dr Luis Pedro Coelho, commented: «These findings suggest that dogs could be a better model for nutrition studies than pigs or mice and we could potentially use data from dogs to study the impact of diet
on gut microbiota in
humans, and
humans could be a good model to study the nutrition of dogs.
The
human gut -
on - a-chip was first invented at the Wyss Institute in 2012.
The Wyss team believes the ability of the
human gut -
on - a-chip to culture the microbiome with
human gut cells also holds promise for the field of precision medicine, where a patient's own cells and
gut microbiota could one day be cultured inside a
gut -
on - a-chip for testing different therapies and identifying an individualized treatment strategy.
With our
human gut -
on - a-chip, we can not only culture the normal
gut microbiome for extended times, but we can also analyze contributions of pathogens, immune cells, and vascular and lymphatic endothelium, as well as model specific diseases to understand complex pathophysiological responses of the intestinal tract.»
In this latest advance reported in PNAS, the Wyss team showed that the
human gut -
on - a-chip's unique ability to co-culture intestinal cells with living microbes from the normal
gut microbiome for an extended period of time, up to two weeks, could allow breakthrough insights into how the microbial communities that flourish inside our GI tracts contribute to
human health and disease.
«The distal
gut of a
human is one of the densest microbial ecosystems
on the planet,» says Stanford University microbiologist David Relman, a pioneer in
human microbiome research.
«Healthy
gut bacterial communities are known to benefit immune regulation, metabolism and potentially even the nervous system, so if cholera or other diarrheal diseases permanently impact the microbiota, there could be long - term effects
on human health,» explains Regina LaRocque, MD, MPH, of the Massachusetts General Hospital (MGH) Division of Infectious Diseases, co-senior author of the paper.
(
Gut bacteria are part of the microbiome, the larger community of microbes that exist in and
on the
human body.)
In a double - barreled discovery, Brady and co-investigator Louis Cohen found that
gut bacteria and
human cells, though different in many ways, speak what is basically the same chemical language, based
on molecules called ligands.
One postdoc presents data
on her efforts to develop an organoid model for small - cell lung cancer; another reports progress
on culturing hormone - secreting organoids from
human gut tissue.
Bonobos, chimps, gorillas and
humans have all evolved their own
gut microbes based
on an ancestral
gut flora in our most recent common ancestor.
In a study that has implications for
humans with inflammatory diseases, researchers from Case Western Reserve University School of Medicine and colleagues have found that, given over a six - week period, the artificial sweetener sucralose, known by the brand name Splenda, worsens
gut inflammation in mice with Crohn's - like disease, but had no substantive effect
on those without the condition.
Large - scale genome sequencing efforts, like the
Human Microbiome Project, have focused on the community of microorganisms that live in the human
Human Microbiome Project, have focused
on the community of microorganisms that live in the
humanhuman gut.
Since the
human body plays host to vast numbers of bacteria, particularly our
gut microbiome, this effectively means that there is a bacterial war going
on inside us.
Professor Gideon Davies, who led the research at York University, says, «Despite our omnivorous diet,
humans aren't well equipped to eat complex plant matter; for this we rely
on our
gut bacteria.
We
humans have a love - hate relationship with our
guts, and Roach's latest book capitalizes
on that mix of fascination and repulsion to lure us into reading about the digestive system.
These images provide the first 3D ultrastructural details
on HIV infection and virus production in a setting that closely resembles the
gut of
human patients.
«In the future, such efforts could allow us to much better understand
human - microbiome interactions, model malnutrition disorders and inflammatory diseases of the
gut, and perform personalized drug testing,» said co-first author Alessio Tovaglieri, a Graduate Student at the Department of Health Science and Technology at ETH Zurich in Switzerland, who performs his thesis work
on Ingber's team.
Warinner and colleague, Cecil M. Lewis, Jr., co-direct OU's Laboratories of Molecular Anthropology and Microbiome Research and the research focused
on reconstructing the ancestral
human oral and
gut microbiome, addressing questions concerning how the relationship between
humans and microbes has changed through time and how our microbiomes influence health and disease in diverse populations, both today and in the past.
Most of the genes in the
human body do not come from
human cells but are found within the trillions of microbes that live
on or within the
human body, particularly in the
gut.
«True to type: From
human biopsy to complex
gut physiology
on a chip.»
Although this
human Gut Chip recreated the villus epithelium of normal intestine and enabled new insights into how flow and cyclic peristalsis affects intestinal differentiation and function, it could not be used to study processes that relied
on normal intestinal cells from individual donors, which, for example, is crucial for studying patient - specific responses for personalized medicine.
Many insects are hosts for Wolbachia, and often depend
on these bacteria for important benefits — much like how
human health depends
on gut bacteria.
Given that the investigators have previously shown the influence of the host molecular clock
on the
gut microbiota, they will also ask if taking this NSAID at different times of day might lead to higher efficacy and less side effects in animal models and eventually in
humans.
«We found that when you perturb
gut microbes early in life among mice and then stop the antibiotics, the microbes normalize but the effects
on host metabolism are permanent,» says senior author Martin Blaser, MD, the Muriel G. and George W. Singer Professor of Translational Medicine, director of the NYU
Human Microbiome Program, and professor of microbiology at NYU School of Medicine.
Scientists have reconstructed the ancestry of Helicobacter pylori, bacteria that live in half the
human guts on Earth, and it corresponds to patterns of
human migration.
The methylmercury in fish passes readily from the
human gut to the bloodstream and
on into all organs and tissues.
These anatomically modern
humans unwittingly had the
guts to spread Helicobacter pylori into Eurasia, where they passed
on the bacteria to their descendants, according to a report published online 7 February in Nature.
While strides have been made in our effort to understand the importance of the complex
human microbiome, the exact functions of the majority of our
gut associates remain unknown, as is their impact
on our metabolism and overall physiology.
Five of its many patent claims
on the
human genes BRCA1 and BRCA2 have been
gutted, although other claims remain intact.
For example, the large - scale sequencing program has already started to sequence the genomes of 100 microorganisms found in the
human gut, and will build
on this by using genomic sequencing to characterize the complex microbial communities found at many sites in and
on the
human body.
In many studies of
human subjects the question of interest centers
on whether a biological factor (disease state, treatment, host genotype etc.) results in a measurable difference
on a
gut bacterial community against the background of the naturally occurring differences among
humans.