A California coyote above Santa Monica beach
Human Gut Bacteria Show Up in Urban Wildlife
The gut microbiomes of city-dwelling animals, including coyotes, lizards, and birds, show similarities to those found in humans who also live in urban environments.
Human Gut Bacteria Show Up in Urban Wildlife
Human Gut Bacteria Show Up in Urban Wildlife

The gut microbiomes of city-dwelling animals, including coyotes, lizards, and birds, show similarities to those found in humans who also live in urban environments.

The gut microbiomes of city-dwelling animals, including coyotes, lizards, and birds, show similarities to those found in humans who also live in urban environments.

gut bacteria
A premature infant drinking from a bottle
In Search of the Best Milk Recipe for Preemies’ Gut Bacteria
Alejandra Manjarrez | Aug 22, 2022
Milk fortifiers of human origin show no evident advantage in the development of the gut microbiota of premature infants over fortifiers derived from cows, while the intake of the mother’s own milk does, two studies suggest.
A jar full of artificial sweetener packets.
Artificial Sweeteners Alter Gut Bacteria in Humans
Shafaq Zia | Aug 19, 2022
When consumed for as little as two weeks, common alternatives to sugar affect intestinal bacterial communities, with some reducing the body’s ability to regulate blood glucose levels, a study finds.
Manipulating the Microbiome to Manage Disease
The Scientist Creative Services Team in collaboration with Tecan
Cammie Lesser will discuss how she turns a probiotic into a drug-delivering machine, while Andrew Y. Koh will describe the connection between the gut microbiota and cancer immunotherapy efficacy.
Illustration of bacteriophages infecting a bacterium
Phages Treat Gut Inflammation in Mice
Andy Carstens | Aug 4, 2022
Mixtures of viruses that attack inflammatory bowel disease–causing bacteria in mice also survive the digestive tract and are well-tolerated in humans, a study finds.
illustration of inside of gut with floating bacteria
Finding Could Pave the Way to New, Targeted Antibody Treatments
Natalia Mesa | Jul 8, 2022
IgA antibodies appear to bind to specific species of commensal gut bacteria in mice, according to a study.
Repurposing a Pathogenic Bacteria’s Weapon
LabTalk Podcast - Bugs with Drugs: Repurposing a Pathogenic Bacteria’s Weapon
The Scientist Creative Services Team
Cammie Lesser describes her research developing designer probiotics to deliver protein-based therapeutics to the gut.
A section of a mouse distal colon showing luminal contents with bacteria in magenta, the mucus lining (green) and the epithelial cell barrier of the gut (blue, right).
Mapping the Neighborhoods of the Gut Microbiome
Abby Olena | Jul 1, 2022
Researchers are going beyond fecal samples to understand how the patterns of commensal microbes in the gastrointestinal tract influence development and health.
A white lab mouse peers over the wall of a sprawling maze
Bacterial Metabolite May Regulate Cognition in Mice
Sophie Fessl | Jun 3, 2022
Microbes in the gut influence the death of support cells in the brain by producing isoamylamine, a study suggests.
Person taking antibiotic pill
What Happens to the Gut Microbiome After Taking Antibiotics?
Sophie Fessl | May 5, 2022
Studies are finding that a single course of antibiotics alters the gut microbiomes of healthy volunteers—and that it can take months or even years to recover the original species composition.
Bacteriophage (green) attacking a bacterium (orange)
Bacteria Set Off Viral “Bombs” Inside Neighbors
Natalia Mesa | Mar 7, 2022
A study finds some E. coli can deploy a chemical called colibactin to reawaken long-dormant viruses inside bacteria, causing destruction.
Illustration of gray bacteriophages approaching and infecting a red and orange bacteria that has multiple fimbria protruding from it.
Bacteria-Infecting Viruses in Gut Microbiome Linked to Cognition
Dan Robitzski | Feb 16, 2022
Research in mice and flies suggests that bacteriophages, including those found in dairy foods, may have an influence on an animals’ ability to learn and remember information.
small striped mammal
Gut Microbes Help Ground Squirrels Endure Hibernation
Alejandra Manjarrez | Jan 27, 2022
By breaking down urea, the animals’ gut bacteria recycle nitrogen, which can be then used to build new molecules during prolonged fasting.
Artist's impression of the human microbiome
Diet Implicated in Autism-Microbiome Link
Ruth Williams | Nov 11, 2021
The unbalanced gut flora present in some people with autism is not a driver of the condition but rather a consequence of eating behaviors characteristic of the condition, a new study claims.
white and yellow colonies growing on a petri dish
Gut Fungi Hamper Radiation Therapy in Mice with Cancer
Rachael Moeller Gorman | Aug 11, 2021
Depleting intestinal fungi allows radiation to effectively fight cancer, likely because the microbes influence the antitumor immune response.
Infographic: Maternal Microbiota Has Lasting Effects on Offspring
Carolyn A. Thomson and Kathy D. McCoy | Aug 1, 2021
Work in rodents shows that the bacteria living in a mother’s gut can produce immunomodulatory metabolites and influence the production of maternal antibodies—both of which can affect her offspring’s development.
The Role of Mom’s Microbes During Pregnancy
Carolyn A. Thomson and Kathy D. McCoy | Aug 1, 2021
Bacteria in the gut influence the production of antibodies and themselves secrete metabolites. In a pregnant woman, these compounds may influence immune development of her fetus.
A scanning electron micrograph of a fetal gut, pseudocolored in yellow and blue
Microbes in Human Fetuses Spur Immune Development
Abby Olena | Jun 3, 2021
Researchers identify live bacteria in fetal guts, skin, lungs, and placentas that activate memory T cells, indicating that early exposure to microbes could help educate the developing immune system.
A person wearing a purple glove holds out a blue pill
Fecal Microbiota Transplantation Is Poised for a Makeover
Shawna Williams | Jun 1, 2021
With multiple microbiota therapeutics in the pipeline for recurrent Clostridium difficile infection, clinicians foresee a shift in treatment options for the condition.
Gene Exchange Among Gut Bacteria Is Linked to Industrialization
Catherine Offord | Mar 31, 2021
A study of human populations around the world detects differing rates of horizontal gene transfer in the microbiome depending on what kind of society those people live in.