Clostridium difficile loves sugar and resists
disinfectant
Story
at-a-glance
- The Centers for Disease Control and Prevention reported
that 15,000 die every year from Clostridium difficile, a bacterium that
may trigger watery diarrhea, fever, dehydration and kidney failure. It is
evolving to a superbug, and has adapted to sugars commonly found in a
Western diet. It also produces spores capable of resisting disinfectants
- Antibiotics are what has turned this minor player,
accounting for up to 3% of bacteria in normal flora, to a major health
concern; when antibiotics disrupt the normal flora, harmful bacteria such
as C. diff are able to thrive and spread in the environment
- Although fecal transplants are new to Western medicine,
they were reportedly being used as far back as 1,700 years ago.
Colonoscopies have been the most successful means of using the treatment,
but they come with risks; one study compared administration using capsules
or colonoscopy and found a 96.2% prevention of recurrence in both groups
- Fecal transplants should only be done by a trained team
as the donor stool must be free of disease; even under investigational
conditions lethal mistakes have been made
- Handwashing is the single most effective means of
preventing the spread of infection and reducing your risk of needing
antibiotics. Hand washing supports a strong gut microbiome, which is
another means of prevention
The Centers for Disease Control and
Prevention1 calls antibiotic resistance one of the biggest public
health challenges of our time. Conservative estimates find at least 2 million
are infected and 23,000 die each year with antibiotic resistant bacteria. When
a germ develops the ability to withstand drugs designed to kill them, they
become antibiotic-resistant2 and are called superbugs.3
Antibiotic resistance happens
naturally as bacteria adapt to drugs. Resistance is helped along by the inappropriate
use of medications, such as antibiotics for viral infections4 and their
use in agriculture.5,6 The World Health Organization7 warns
emerging resistance to antibiotics threatens the ability to treat common
infections that may result in prolonged illness, disability and death.
Simple medical procedures may become
high risk, which means the cost of health care rises. In what researchers
believed was the first national estimate8 of the cost for treating antibiotic-resistant infections,
they found a national cost of $2.2 billion in 2014, having doubled since 2002.9
Antibiotic resistance is a worldwide
crisis10 with the potential to threaten people at any age.11 One bacterium
known to be fatal to the elderly and sick is clostridium difficile, or C. diff.
In a recent study it was reported that this12 bacterium has become highly adapted to spreading inside
hospitals, and they may have found the reason why.
Bacteria
and sugar make a deadly combination
A mild to moderate infection with
this bacterium affects the gut, causing watery diarrhea for two to three days
and mild abdominal cramping and tenderness.13 A severe infection can trigger diarrhea, fever, kidney
failure, dehydration and weight loss.14
The bacteria are now able to take
advantage of high sugar diets and resist disinfection commonly used in the
hospital. In a recent study15 researchers showed how C. diff can exist for long periods
of time on disposable equipment and vinyl surfaces, even after having been
cleaned with disinfectant.
In one study published in Nature16 it was
reported that C. diff has adapted and diverged, and is close to becoming a new
bacterial species. Through a large-scale analysis of 906 cultures taken from
humans, animals and the environment17 the researchers sequenced the bacterium’s DNA and were able
to demonstrate the evolving formation of a new species18 with a
change in metabolism and sporulation.19
The new evolution of C. diff is
producing spores more resistant to hospital disinfectants that have the
capacity to grow in the presence of glucose and fructose. The researchers found
the new species in 70% of hospital patient samples taken for the study.
They also found this new species
could colonize mice better when the animals’ diet was supplemented with sugar.
Analysis found this emerging species made its first appearance 76,000 years ago
and has more recently begun to thrive in hospital settings. Senior author
Trevor Lawley commented:20
“Our study provides genome and
laboratory-based evidence that human lifestyles can drive bacteria to form new
species so they can spread more effectively. We show that strains of C.
difficile bacteria have continued to evolve in response to modern diets and
healthcare systems and reveal that focusing on diet and looking for new
disinfectants could help in the fight against this bacteria.”
C.
diff is commonly found in the environment
Another author of the paper, Nitin
Kumar, Ph.D., a senior bioinformatician at the Wellcome Sanger Institute, told
Popular Science:21 “The study shows how the pathogen C. difficile is
evolving in response to the Western sugary diet and common hospital
disinfectants.”
A New York Post journalist suggests
pudding cups and instant mashed potatoes, common fare at hospitals, may be just
the food this superbug is looking for.22 According to Harvard Health, C. diff accounts for up to 3%
of bacteria in a normal intestinal flora. Although present, it is usually
harmless as good bacteria keep it under control.
It turns out that antibiotics have
turned this minor player into a major problem.23 Once
antibiotics have disrupted the normal flora in your gut, this allows harmful
bacteria to thrive, including C. diff. This in turn triggers diarrhea.24
C. diff forms spores that may get
into the environment through those who are infected, when they touch surfaces.
When others touch the newly-contaminated surfaces and then touch their mouths,
the infection spreads.25
Health care workers may also spread
the bacteria when their hands are contaminated. Since antibiotics alter the
normal flora found in the intestinal tract, and a large number of patients
receive antibiotics in health care settings, this can lead to C. diff
outbreaks.
Poop
pills may help combat an outbreak
C. diff can trigger a
life-threatening condition in those who have been on antibiotics or have a
compromised immune system. According to the CDC, there are 500,000 C. diff
infections each year resulting in 15,000 deaths.26 One
treatment methodology is a stool transplant, which has been used throughout
history.
Although new to Western medicine,
fecal transplants were described as far back as 1,700 years ago by a Chinese
researcher who first used what he called “yellow soup” to treat patients with
severe diarrhea.27 In World War II, the stools of camels was used to treat
bacterial dysentery in German soldiers.
In 1958, the treatment was described
in a report for a patient with antibiotic-associated diarrhea. But it was not
until 1978 that the value was recognized in the treatment of C. diff.28 The
treatment goes under several different names including fecal biotherapy and
fecal floral reconstitution.
In the past, colonoscopies have been
the most successful way of introducing fecal matter into patients, but a new
poop pill-popping protocol may be less invasive while still offering a
life-saving option. In a trial at the University of Alberta,29 researchers
compared the administration of fecal matter using a capsule or colonoscopy.
All participants in the study had
suffered a minimum of three bouts of C. diff. Both groups showed prevention of
recurrent infection in 96.2% of the participants.30 While the
colonoscopy was invasive, the patient chosen to swallow pills had to down 40
capsules in one sitting.31
Using poop pills is noninvasive,
less expensive, free of risks associated with sedation and may be done in the
doctor’s office. It is not, however, a treatment method you should experiment
with at home. Even under investigational conditions, mistakes can be made.
In June 2019, the FDA released a
statement that two immunocompromised adults had received a transplant that
unwittingly transmitted a multidrug-resistant organism. At least one of those
patients has died.32
Prevention
is still the best medicine
To date, the FDA has not approved
fecal transplants and continues to monitor the development as it is essential
for a healthy donor to be used.33 Open Biome maintains a list of current studies being done
on fecal transplants including those to treat C. diff, inflammatory bowel disease, liver disease, obesity
and depression.34
The single most effective means to
prevent the spread of infection is through hand washing. The CDC35 recommends
cleaning your hands to prevent the spread of germs. However, they find on
average health care workers do this less than half the time they should.
In one cross-sectional study36 conducted
in Nepal to assess the habits of nurses, nursing students, doctors and medical
students, the researchers found a significant difference in hand washing both
before and after patient care.
After exposure to instruments, blood
or bodily fluid, more than 90% washed their hands. However, on average the
participants tended to wash their hands selectively.
A second study of hand washing in
six intensive care units revealed a high level of variability in adherence to
best practices with a compliance rate ranging from 3% to 100%.37 Take care
to use proper handwashing techniques to thoroughly clean your
hands and reduce the risk of transmitting disease.
A second preventive strategy
includes protecting your gut microbiome from the effects of antibiotics. It is
important to take antibiotics only when they’re necessary. You should not use
them for viral infections, which may contribute to the development of
antibiotic resistance.38
Antibiotics have no effect on
viruses and you’ll likely get greater relief by using a combination of natural
remedies described in my previous article, “Natural Cold Remedies: What Works, What Doesn’t.”
Support
strong gut bacteria for good health
Supporting the growth of beneficial
bacteria in your gut microbiome may affect your mental and physical health. Sugar is one of the
most negative culprits because it contributes to a dysfunctional gut
microbiome. A study39 published in January 2019, found that sugars affect a
regulator of gut colonization for beneficial bacteria.
In essence, glucose and fructose
turn off the expression of a protein regulating gut colonization by beneficial
microbes. Sugar disrupts the generation of proteins that foster the growth of
beneficial bacteria found in lean, healthy individuals.40
Since gut dysfunction may lead to a
system-wide inflammatory response, it is important to address the needs of your
gut bacteria consistently. As a general rule, once you start healing your gut,
you should start feeling better in a couple of weeks to a few months. Discover
several strategies to help you get started in my article, “Healthy Gut, Healthy You: A Personalized Plan to Transform
Your Health.”