This document discusses prebiotics and probiotics. It defines prebiotics as non-digestible fibers that support beneficial gut bacteria, and probiotics as live microorganisms that provide health benefits. Some key points covered include: the health benefits of prebiotics like promoting probiotic growth and enhancing immune function; examples of probiotic foods like yogurt and fermented soy products; the criteria a microbe must meet to be considered a probiotic; and the mechanisms by which probiotics provide benefits like interacting with the immune system and competing with pathogens. The roles of prebiotics and probiotics in oral health are discussed, as well as their safety, dosages, and synergistic effects when combined as synbiotics.
2. • Microbes and Human
Beings
• Rationale
• What are Prebiotics !?
• Sources of Prebiotics
• Establishes Prebiotics
• Health Benefits
• Probiotics
• Probiotic Rich Food
• A Successful Probiotic
must have…
• Mechanism of Action
• Probiotic Preparations
• Systemic Health
Benefits
• Why Probiotics over
Antibiotics
• Role in
Periodontology
• Different means of
Administration
• Synbiotic
• Pre v/s Pro
• Safety and Adverse
Effects
• Dosage
• References
3. MICROBES AND
HUMAN BEINGS
Microbes are best known for their
role in causing disease in humans.
In the 19th century, men lost their
fear of Gods and instead acquired
a fear of microbes.
But Colonic Bacteria plays an
important role in maintaining
health and also in treatment of
childhood diarrhea and post –
antibiotic diarrhea.
4. WHY DO
WE FEAR
MICROBES !!
TUBERCULOSIS
AIDS
SMALLPOX
John Keats
Alexander
Graham Bell
Srinivas
Ramanujan
Nelson Mandela
Abraham
Lincoln Isaac
Asimov
5. RATIONALE
INGESTION OF FERMENTATION BY PRODUCTION OF
PREBIOTICS PROBIOTICS POSTBIOTIC
S
Specialized fiber
that supports
beneficial
microbes
present in the
gut
Live
microorganisms
that provide
health benefits
Products made
by intestinal
bacteria that
affect a range of
physiological
processes
7. • Gibson and Ruberoid,
1995
• “Non - digestible food
ingredients that
beneficially affect the
host by selectively
stimulating the
growth and/or activity
of one or a limited
number of bacteria in
the colon that can
improve host health.”
8. PREBIOTICS
• Non – digestible but fermentable food
ingredients
– Fructo-oligosaccharides (chicory, inulin)
– Lactulose
• Positively affect the endogenous flora by
changing the composition and activity of the
intestinal microbiota
• Stimulate the growth of one or a limited number
of bacterial species with prospect to promote the
health of the host
– FOS Bifidobacterium
– Lactulose Lactobacilli
11. Health benefits of Prebiotics
promotion of growth of probiotics
increase of calcium absorption
direct effects on the host:
• stimulation of IL-10 and interferon γ,
• enhancement of IgA secretion,
• modulation of inflammatory responses to pathogens
The oligosaccharide derivatives contain sugars that are
specific epithelial cell receptors to which pathogens adhere
and they, therefore, provide „decoy” adhesion sites and
cause pathogens to adhere to luminal contents rather than
to epithelial cells.
13. 1845 - 1916
First introduced Probiotics in the 20th
Century
He proposed
consumption of
fermenting food products
positively influenced
microflora of the colon
He introduced Bulgarian Bacillus; later
called as Lactobacillus delbrueckii
subspecies
ELIE METCHNIKOFF
NOBEL PRIZEWINNING RUSSIAN BACTERIOLOGIST
14. Probiotics are defined as living micro-organisms,
principally bacteria, that are safe for human
consumption and, when ingested in sufficient
quantities, have beneficial effects on human health,
beyond basic nutrition.
(World Health Organization / Food and Agriculture
Organization of the United Nation)
Probiotics : Greek meaning – “For Life”
Probiotics are live microorganisms
which when administered in
adequate amounts confer a health
benefit on the host.
Gaurner et.al - 2005
16. A Successful PROBIOTIC
must…
1. It should capable of exerting a beneficial
effect on the host animal, e.g. increased
growth or resistance to disease.
2. It should be of human origin.
3. It should have high cell viability.
4. It should be non-pathogenic and non-toxic.
5. It should be able to interact or to send
signals to immune cells.
6. It should have capacity to influence local
metabolic activity.
7. It should be stable and capable of
remaining viable for periods under storage.
17. MECHANISM OF ACTION
1. Direct interaction : Probiotics
interact directly with the
disease-causing microbes,
making it harder for them to
cause the disease.
2. Competitive exclusion :
Beneficial microbes directly
compete with the disease
developing microbes for
nutrition or enterocyte
adhesion sites.
3. Modulation of host immune
response : Probiotics interact
with and strengthen the
immune system and help
prevent disease.
19. SYSTEMIC HEALTH BENEFITS
Elimination of
lactose intolerance
Anti-diarrheal
Immunomodulator
y
Anticarcinogenic
Hypo-
cholesterolemic
Antihypertensive
21. WHY PROBIOTICS OVER
ANTIBIOTICS
ANTIBIOTICS PROBIOTICS
Damage the normal flora,
Predisposes additional
infections
Emergence of resistant
strains
ANTIBIOTICS PROBIOTICS
Prevent
colonization,
overgrowth and
translocation
Reduce incidence
of future infections
22. ROLE OF PROBIOTICS IN
PERIODONTICS
ROLE OUTCOME STRAINS REFERENCE
PLAQUE
CONTROL AND
GINGIVAL
INFLAMMATION
Reduction in plaque
accumulation and
gingivitis .
Nisin, bacteriocin
extracted from
L.lactis
K.Noordin and
S.Kamin
PERIODONTITIS
IN SMOKERS
Improvement of plaque
index and probing pocket
depth from baseline
within 8 weeks
L.salivarius WB21 H.Shimauchi
et al 2008
REDUCTION OF
MALODOR
In-vivo and in-vitro study
showed a definite
inhibitory effect on
production of Volatile
Sulphur Compounds
W.cibaria Kang et al
2006
23. ROLE OF PROBIOTICS IN
PERIODONTICS
ROLE OUTCOME STRAINS REFERENCE
ATTACHMENT,
ADHESION
AND ORAL
COLONIZATION
Co-aggregated with F.nucleatum
thereby forming a barrier that
prevents colonization of pathogenic
bacteria indicating that probiotics
affect formation of oral biofilms and
modify resident microflora
W.Cibaria Kang et al,
2005
PERIODONTAL
DISEASES
Diminish the number of periodontal
pathogens like Bacteroides sp,
Actinomyces sp, and C. albicans
Lactobacillus
species
Volozin et al
2004
PERIODONTAL
DISEASES
Inhibits the growth of P.gingivalis
and P.intermedia
Resident
lactobacilli
flora
Koll-klais et al
2006
YEAST
INFECTIONS
Rapid decline in C.albicans in mice L.acidophilus
and
L.fermentum.
Elahi et al
2005
24. DIFFERENT MEANS OF PROBIOTIC
ADMINISTRATION FOR ORAL HEALTH
PURPOSES
• Most common : Dairy
products and probiotic –
fortified foods
• Formulations :
Drops
Chewable tablets
Lozenges
Capsules
Straws
Powder blends
Bacteria in freeze dried form
27. SAFETY AND ADVERSE
EFFECTS
• Mild side effects, if occur.
• Digestive – bloating and flatulence
• Infections in Immunocompromised patients and Not
recommended in critically ill person
• Diabetic patient to be cautious because of high level of sugar
in probiotic drinks
• Constipation and Increased Thirst – associated with S.
boulardii
• Consumption of a mixture of six probiotic bacteria increased
the death rate of patients with predicted severe acute
pancreatitis.
• Prebiotic – Oligosaccharide Abdominal Discomfort and
Distension + significant levels of flatulence
28. DOSAGE
• Minimum Consumption = 100 g of a
probiotic food of 107 cfu/gram
• Over the counter dose = 1-10 billion
cfu/dose
• Recommended dosage = 5 grams a day
• The Nutrition Information center of South
Africa’s University of Stellenbosch
recommended that daily consumption of
prebiotics be held below 20 grams.
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university Malaysia 2007:14;19-25
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2011 vol 4 issue 4