Bright purple and orange lactobacillus bacteria.
How a Specific Gut Bacterium May Cause Type 1 Diabetes
A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.
How a Specific Gut Bacterium May Cause Type 1 Diabetes
How a Specific Gut Bacterium May Cause Type 1 Diabetes

A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.

A bacterium that produces an insulin-like peptide can give mice type 1 diabetes, and infection with the microbe seems to predict the onset of the disease in humans, a study finds.

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human microbiome
Artist’s rendition of bright blue microbes among intestinal lining
Study Links Depression with High Levels of an Amino Acid
Dan Robitzski | Jun 14, 2022
Experiments in animals and observations in humans suggest that the amount of proline circulating in one’s plasma has a strong association with depression severity.
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 Little Help From My Friends: Lessons Learned From Microbiome Metagenomics
The Scientist Creative Services Team
Heather Jordan and Jennifer Wargo will discuss how metagenomics studies help uncover new and medically relevant functions of the human microbiome.
Gut Microbe Linked to Nonalcoholic Fatty Liver Disease
Abby Olena | Sep 19, 2019
Researchers find strains of the bacterium Klebsiella pneumoniae that produce high levels of alcohol in 60 percent of patients with the condition.
Gut Microbes Boost Flu Vaccine’s Success: Clinical Trial
Abby Olena | Sep 5, 2019
Antibiotics disrupt the immune response to the influenza vaccine in people who haven’t recently had exposure to the virus or immunization.
The Scientist Speaks Podcast – Episode 4
The Scientist Creative Services Team
Hidden Hitchhikers: Lessons Learned from The Human Microbiome Project
HIV gut microbiome risk high immune system activation inflammation study
Men with High HIV Risk Have Unique Gut Microbes, Inflammation: Study
Chia-Yi Hou | Jul 8, 2019
The microbiomes of men who have sex with men are associated with greater immune system activation and promote elevated rates of viral infection in vitro.
Many Non-Antibiotic Drugs Affect Gut Bacteria
Catherine Offord | Mar 19, 2018
A new study finds that more than 200 human-targeted, non-antibiotic drugs inhibit the growth of bacterial species that make up part of the human microbiome.
Environment, Not Genetics, Primarily Shapes Microbiome Composition
Jim Daley | Feb 28, 2018
Including microbiome composition in predictions of whether a person is obese can significantly improve their accuracy, according to an analysis.
In-Depth Look at the Human Microbiome
Jef Akst | Sep 20, 2017
Hundreds of samples from microbes living in the gut, skin, mouth, and vagina add to the human microbiome “fingerprint.” 
Microbe Maven
The Scientist Staff | Jul 16, 2017
Meet Scientist to Watch Emily Balskus, who studies the microbes that inhabit humans.
Viruses of the Human Body
Eric Delwart | Nov 1, 2016
Some of our resident viruses may be beneficial.
Neonatal Gut Bacteria Might Promote Asthma
Anna Azvolinsky | Sep 12, 2016
Byproducts of gut microbes in some 1-month–old babies trigger inflammation that is linked to later asthma development, researchers find.
Hot Off the Presses
Bob Grant | Jul 1, 2016
The Scientist reviews Serendipity, Complexity, The Human Superorgasism, and Love and Ruin
Your Office Has a Distinct Microbiome
Amanda B. Keener | Jul 1, 2016
Researchers detail the major factors shaping the microbiomes that surround us while we work.
Students Study Their Own Microbiomes
Jef Akst | Jun 1, 2016
Pooping into a petri dish is becoming standard practice as part of some college biology courses.
National Microbiome Initiative Launched
Tanya Lewis | May 13, 2016
The White House announces a new effort to study diverse microbial communities around the planet.
Counting Cells
Jef Akst | Jan 11, 2016
A person likely carries the same number of human and microbial cells, according to a new estimate.
Weight's the Matter?
Mary Beth Aberlin | Nov 1, 2015
The causes and consequences of obesity are more complicated than we thought.