How Commensal Gut Bacteria Keep Pathogens in Check
How Commensal Gut Bacteria Keep Pathogens in Check
Recent studies describe how resident microbiota appear to outcompete unwelcome visitors, either with superior weaponry or by guzzling up local resources.  
How Commensal Gut Bacteria Keep Pathogens in Check
How Commensal Gut Bacteria Keep Pathogens in Check

Recent studies describe how resident microbiota appear to outcompete unwelcome visitors, either with superior weaponry or by guzzling up local resources.  

Recent studies describe how resident microbiota appear to outcompete unwelcome visitors, either with superior weaponry or by guzzling up local resources.  

microbiome
Salty Diet Helps Gut Bugs Fight Cancer in Mice: Study
Salty Diet Helps Gut Bugs Fight Cancer in Mice: Study
Sophie Fessl | Sep 20, 2021
A high-salt diet suppressed the growth of tumors in a mouse model of melanoma, apparently because of an interplay between the gut microbiome and natural killer cells.
Gut Microbiome May Help or Hinder Defenses Against SARS-CoV-2
Gut Microbiome May Help or Hinder Defenses Against SARS-CoV-2
Bianca Nogrady | Aug 31, 2021
The health of the microbial community is associated with COVID-19 severity, but it’s not yet clear if the relationship is causal.
Gut Fungi Hamper Radiation Therapy in Mice with Cancer
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
Infographic: Maternal Microbiota Has Lasting Effects on Offspring
Carolyn A. Thomson, 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
The Role of Mom’s Microbes During Pregnancy
Carolyn A. Thomson, 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.
Contributors
Contributors
The Scientist Staff | Aug 1, 2021
Meet some of the people featured in the August 2021 issue of The Scientist.
Gut Microbes Help Coordinate Immune Activity in Mice
Gut Microbes Help Coordinate Immune Activity in Mice
Catherine Offord | Jul 29, 2021
The microbiota helps align a mouse’s innate immune system with its feeding patterns, prepping the animal to fend off infection when it’s most likely to be eating.
Bacterial Infections Disrupt Flies’ Sense of Smell
Bacterial Infections Disrupt Flies’ Sense of Smell
Abby Olena | Jul 21, 2021
The temporary loss of olfaction stops the flies from eating any more of whatever it is that made them sick.
Human Blood Harbors Cell-Free Microbial DNA
Human Blood Harbors Cell-Free Microbial DNA
Abby Olena | Jul 9, 2021
After controlling for high levels of bacterial contamination in their lab and reagents, researchers detect microbial genetic material in plasma samples from healthy people and cancer patients.
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Maternal Vaginal Fluids Mimic Microbe Transfer of Vaginal Birth
Maternal Vaginal Fluids Mimic Microbe Transfer of Vaginal Birth
Alejandra Manjarrez | Jun 23, 2021
Swabbing infants born by Cesarean-section with a gauze harboring their mother’s vaginal fluids made their skin and gut microbiota more closely resemble that of vaginally born babies.
Microbes in Human Fetuses Spur Immune Development
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.
Fecal Microbiota Transplantation Is Poised for a Makeover
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.