SEP 30, 2015 06:30 PM PDT

Gut Microbes Help You Breathe Easy

WRITTEN BY: Kerry Evans
Gut microbes are in the news yet again.  This time, researchers at the University of British Columbia, led by Brett Finlay, published evidence that gut microbes play an important role in asthma.  The team found that asthma was associated with lower levels of four gut bacteria: Lachnospira, Veillonella, Faecalibacterium, and Rothia.  
 
Four types of gut bacteria are linked with asthma

Lachnospira are Gram positive anaerobic bacteria in the class Clostridia, making them related to better known species such as Clostridium difficile and Clostridium botulinum.  Veillonella are also Gram positive anaerobes, but their cell wall composition actually makes them appear Gram negative.  For this reason, they are classified in the class Negativicutes.  Faecalibacterium, also class Clostridia, are actually some of the most common bacteria found in the gut.  Low levels of this bacteria have been associated with Crohn’s disease.  Finally, Rothia, yet another Gram positive bacteria, occupies the mouth and respiratory tract, and is commonly associated with periodontal disease.

Now, back to the study.  Finlay and his team followed 319 children over five years.  Stool samples were taken at three months and one year, and their general health was followed up to age five.  They found that infants with a high risk for asthma also had lower levels of the four types of bacteria in stool samples. What is most surprising is that by age one, the “at risk” infants’ microbes looked the same as normal infants.  “In that first 100 days, the structure of the gut microbiome seems to be important in influencing the immune responses that cause or protect us from asthma”, says co-author Stuart Turvey.

These new findings prove just how important our gut microbes are, particularly in the first few months of life.  According to Turvey, “we need to revisit our relationship with bacteria … this study and other like it emphasize that we have evolved with bacteria and they are really important for our health”.  
 

Sources: Discover Magazine, BBC News, Wikipedia
 
About the Author
  • Kerry received a doctorate in microbiology from the University of Arkansas for Medical Sciences.
You May Also Like
SEP 27, 2018
Microbiology
SEP 27, 2018
How Bacterial Cells Take out the Trash
Some types of bacteria create tiny versions of themselves that cannot reproduce - miniature spheres lacking chromosomal DNA that are known as minicells....
OCT 15, 2018
Microbiology
OCT 15, 2018
Surprising Source of Hospital-acquired Infections is Found
Is it a sick visitor, a dirty hospital gown, or the unwashed hands of a clinician? No, the infection is coming from inside the patient!...
OCT 22, 2018
Videos
OCT 22, 2018
Mad Cow Disease Identified in Scottish Cow
Stringent detection systems appear to be working, but cases still happen....
NOV 09, 2018
Cardiology
NOV 09, 2018
Lyme Disease And The Heart
In small-town New England, everyone knows the unique characteristic symptom of Lyme disease. A bulls-eye pattern rash around a tiny tick bite, infection gr...
NOV 15, 2018
Videos
NOV 15, 2018
A Season of Outbreaks
In a few different places around the world, people are facing disease outbreaks due to pathogenic microbes....
DEC 08, 2018
Cardiology
DEC 08, 2018
Atrial Fibrillation, Explained
Atrial fibrillation (A-Fib) is a term you've likely heard before. You may have even been told you live with A-Fib. What exactly is this common type of...
Loading Comments...