International Journal of Clinical Medicine, 2012, 3, 159-162
http://dx.doi.org/10.4236/ijcm.2012.33033
Published Online May 2012 (http://www.SciRP.org/journal/ijcm)
159
Health from the Hive: Potential Uses of Propolis in General
Health
Eshwar Shruthi
*
, B. S. Suma
Department of Public Health Dentistry, K.L.E. Institute of Dental Sciences, Bangalore, India.
Email:
*
drshruthi_80@rediffmail.com
Received January 13
th
, 2012; revised February 20
th
, 2012; accepted March 20
th
, 2012
ABSTRACT
The health industry has always used natural products as an alternative, to the conventional allopathic formulations
available for the treatment of various afflictions. Propolis, a natural antibiotic is a resinous yellow brown to dark brown
substance that honey bees (Apis mellifera) collect from tree buds, sapflows, shrubs or other botanical sources to seal
unwanted open spaces in the hive, protecting it from outside contaminants. The main chemical classes present in propo-
lis are flavonoids, phenolics and other various aromatic compounds. Flavonoids are well known plant compounds that
have antibacterial, antifungal, antiviral, antioxidant and anti-inflammatory properties. Propolis has been used in general
for various purposes and has a promising role in future medicine as well as in dentistry. This paper is an attempt to re-
view various applications of this compound in medicine.
Keywords: Propolis; General Health; Safety & Precautions
1. Introduction
There is a great trend nowadays to use natural materials
as cure for many diseases. Alternative medicine has made
a lot of contributions to modern medical practice [1]. Pro-
polis was used at the time of Egyptian and Greek civili-
zations which recognized its healing qualities. Hippo-
crates, the founder of modern medicine, used it for heal-
ing sores and ulcers internally and externally. The word
Propolis (Russian Penicillin) is derived from the Greek
word “pro” before, polis “city” or defender of the city.
This non-toxic resinous substance was classified into 12
types according to physicochemical properties and related
to geographic locations; however, the botanical origin of
only three types were identified (Wander, 1995). A new
type of propolis, named Brazilian red Propolis (BRP)
because of its color, it has attracted the attention of in-
ternational business [2]. Propolis is the glue that honey
bees (Apis mellifera) use to seal up their hives. Propolis
is a sticky filler substance with the aroma of poplar honey
and vanilla that is collected by bees from the buds and
barks of trees and plants such as horse chest, nuts, poplar
and fir trees. The bees take the resin back to their hives
and work on it, producing a glue like substance with
which they fill cracks, smooth over the interior of the
nest, strengthen comb attachments and cover and em-
balm intruders and other objectionable objects in the hive
that are too large to carry out. [1] In nature, or when in
room temperature, it is a sticky substance, but becomes
hard and brittle at low temperature. It is composed of
resin and balsams (50% - 70%), essential oils and wax
(30% - 50%), pollen (5% - 10%) and other constituents
which are amino acids, minerals, vitamins A, B complex,
E and the highly active bio-chemical substance known as
bioflavonoid (Vitamin P), phenols and aromatic com-
pounds [2]. The main chemical classes present in propo-
lis are flavonoids, phenolics and other various aromatic
compounds. Flavonoids and caffeic acid present in pro-
polis are known to play an important role in reducing the
inflammatory response by inhibiting lipoxygenase path-
way of arachidonic acid. Flavonoids and caffeic acid also
aid the immune system by promoting phagocytic activi-
ties and stimulates cellular immunity. Propolis is avail-
able in the world markets in different forms as capsules,
lozenges, tincture and cream in Europe and America. It is
already available in Russia as toothpaste. Further, re-
search is being carried out at Oxford University, on the
benefits of Propolis [3].
2. Synonyms
Apis mellifera L., bee glue, bee propolis, bee putty, Bie-
nenharz (German), Brazilian green propolis, Brazilian pro-
polis, Bulgarian propolis, caffeic acid phenethyl ester
(CAPE), cera alba, chizukit, cinnamic acid, flavonoids, ga-
langin, Greek propolis, hive dross, Propolin H, propolis
balsam, propolis resin, propolis wax, propolisina (Spanish),
*
Corresponding author.
Copyright © 2012 SciRes. IJCM
Health from the Hive: Potential Uses of Propolis in General Health
160
Russian penicillin, Taiwanese propolis, terpenes, WSDP.
The aim of this review was to draw the attention of
dental health care workers to propolis as a natural rem-
edy and its plausible use in dental diseases.
3. Potential Actions of Propolis
(The Use of Propolis in Medicine)
3.1. In Medicine
General medicinal uses of propolis include treatment of
the cardiovascular and blood systems (anemia), respiratory
apparatus (for various infections), dental care, dermatology
(tissue regeneration, ulcers, eczema, wound healing—
particularly burn wounds, mycosis, mucous membrane
infections and lesions), cancer treatment, immune system
support and improvement, digestive tracts (ulcers and in-
fections), liver protection and support and many others [4].
3.2. Anti-Bacterial Effect
In a study by Grange and Davey, they used a Propolis
dilution of 1:20 in nutrient agar which completely inhib-
ited the growth of S. aureaus, S. epidermidis, Entero-
coccus spp. Corynebacterium spp. B. catarrahlis and B.
cereus. This dilution partially inhibited the growth of P.
aeruginosa and E. coli but had no effect on K. pneumo-
nia. Thus it appeared to have an inhibitory effect on cocci
and gram positive rods. Tube dilution studies showed that
it was bactericidal for B. cereus and the gram-negative
cocci at dilutions of 1:160 to 1:320, and that growth of
the H37RV reference strain of Mycobacterium tubercu-
losis was totally inhibited at 1:320 and partially inhibited
at 1:640 dilution [5].
Koo et al. in Brazil found antibacterial effect of Pro-
polis on S. mutans, S. sanguis and A. naeslundaii in addi-
tion to the inhibition of glycosultransferase [6].
3.3. Anti-Viral Effect
Serkedjieva conducted an in vitro study on the antiviral
activity of six synthetic substances which were esters of
substituted cinnamic acids, identical with or analogous to
some of the constituent fractions of Propolis. One of them,
isopentyl ferculate, inhibited significantly the infectious
activity of influenza virus A in vitro and the production
of hemalutinins in vivo. In diverse experimental studies,
it was found that the maximal inhibition of viral repro-
duction was observed when test substances were present
in the medium during the whole infectious process [7].
3.4. Anti-Fungal Effect
Propolis and nine anti-fungal drugs were tested on four
fungi that cause infections in humans. It was as effective
as (or more effective than) some of the other preparations
against three of the fungi, and in some tests, its activity
was enhanced in the presence of propylene glycol. Pro-
polis and propylene glycol gave better results against
Scopulariopsis breveicaulis than any of the drugs tested
[8].
3.5. Anti-Oxidant Effect
Krol et al. described the remarkable medical property of
the ethanolic extract of Propolis (EEP), that is the protec-
tion against gamma radiation. They performed their ex-
periment on mice and found that the anti-oxidative effect
could be attributed to its radical scavenging ability. They
also demonstrated the ability of increasing amounts of
EEP to inhibit luminol H202 chemiluminescence in vitro,
and suggested that its anti-oxidative capacity was partly
due to its high content of flavenoids [9].
An Italian Study investigated the antioxidant activity
of a propolis extract deprived of caffeic acid phenethyl
ester (CAPE). Propolis extract (with and without CAPE)
and its active components showed a dose-dependent free
radical scavenging effect, a significant inhibition of xan-
thine oxidase activity, and an antilipoperoxidative capac-
ity. Propolis extract with CAPE was more active than
propolis extract without CAPE. The experimental evi-
dence, therefore, suggests that CAPE plays an important
role in the antioxidant activity of propolis [10].
3.6. Protective Action of Propolis on Cartilage
An Italian study states that this natural compound and its
active principle, caffeic acid phenethyl ester (CAPE), were
able to contrast the harmful effects of IL-1beta.Our data
clearly demonstrated the protective action of propolis in
cartilage alteration, that appears greater than that elicited
by indomethacin, commonly employed in joint diseases
[11].
3.7. In Vaccines
To be effective, most vaccines typically depend on the
inclusion of substances known as adjuvants that stimulate
an immune response. Researchers seeking to develop a
vaccine against Suid herpesvirus type1 (SuHV-1), which
causes an infectious disease among swine, combined
green propolis with an ethanol extract and tested it on
mice. The mice showed an increased cellular immune
response and increased protection against SuHV-1. This
response did not occur with propolis alone, but only
when the antigen was absorbed in a particulate adjuvant,
like aluminum hydroxide. Thus, when associated with
auxiliary substances like aluminum hydroxide, green
propolis extract may increase the potency of vaccines,
especially those that depend on the cellular immune re-
sponse for protection [12].
Copyright © 2012 SciRes. IJCM
Health from the Hive: Potential Uses of Propolis in General Health
161
3.8. Effect on Cancer
Scheller demonstrated the anti-tumoral effect in mature
mice bearing Ehrlich carcinoma. Survival rate after EEP
treatment was compared to that of bleomycin, given alone
or in combination every 2 days for thirty-six days and
followed up for fourteen additional days. The survival
rate at fifty days was 55% after EEP and 40% after
bleomycin, while all the mice treated with EEP plus ble-
omycine combination demonstrated shorter survival than
the controls. It was concluded that while the in vivo ac-
tivity of bleomycin was reduced in the presence of cyto-
chrome-c-reductase inhibitors (as some of the EEP com-
ponents) are the anti-tumoral property of EEP in the ex-
perimental animal model studied was significant and
lasting [13].
A literature review finds that propolis’s pharmacol-
ogical properties make it safe and effective as an adjunct
for patients receiving cancer treatment:
• Biological therapy. Biological therapy works hand in
hand with the immune system. Propolis’s biological ac-
tivities such as antitumoral activity, DNA protection,
free-radicals scavenging, and immune stimulation act in
synergy with each other and with conventional chemo-
therapy medication.
• Synergy with chemotherapy. Antioxidants may boost
the effects of anti-carcinogenic drugs, thus enabling a
decrease in the administered dose and in turn leading to a
reduction in side effects. They may also influence the
response to chemotherapy.
• Anti-inflammatory activity. This results from propo-
lis’s inhibitory effect on prostaglandins, leukotrienes, and
histamine release.
• Healing activity. Propolis promotes epithelial forma-
tion as well as vascular and fibroblastic neoformation of
the connective tissue.
• Antimicrobial activity. Propolis’ flavonoids and phe-
nolic acids are pharmacologically active compounds that
have effects on bacteria, fungi, and viruses [14].
3.9. Effect on Upper Respiratory Infections
German study investigated the bactericidal effect against
several strains isolated from patients with infections in
their upper respiratory tracts [15].
3.10. In Cosmetics
Dermatological and cosmetic applications are at this time
probably the most common uses for propolis and its ex-
tracts. Its effects on tissue regeneration and renovation
have been well studied. Together with its bactericidal and
fungicidal characteristics it provides many benefits in
various applications in cosmetics [4].
4. Safety & Precautions
4.1. Bee Propolis—How Safe Is It?
In general, propolis is safe. It is a non toxic substance
and for most people, will not caused irritation when used
as supplements or applied to skin. However, like other
honey bee products, there are people who are allergic to
propolis. Allergic reaction due to this substance was first
reported in beekeepers as an occupational effect but is
now seen mainly in individuals who use propolis in cos-
metics and supplement to treat various health conditions.
It is believed that a substance called caffeic acids to be
one of the causes of allergies to propolis.
4.2. Who Can Be Allergic to Propolis?
Those allergic to pollen;
Asthma patients;
Allergic to bee stings;
Pregnant women.
There have not been many published clinical trials on
the effect of propolis on pregnant women. Because the
information in this area is limited, it has been advised to
avoid using propolis during pregnancy and breastfeeding.
4.3. The Symptoms of Allergies
If allergic to propolis, it may cause redness of skin, de-
velop rashes, swelling, itching, fluid collection, fever and
may even lead skin to crack (including a severe allergic
reaction called anaphylaxis). Apart from that, it may also
irritate the skin area where it is applied on, cause eczema,
lesions, psoriasis or mouth sores [16].
4.4. Interactions with Drugs
Many tinctures contain high levels of alcohol and may
cause nausea or vomiting when taken with metronidazole
or disulfiram. Propolis may produce additive effects when
taken with antimicrobial drugs.
Propolis may interact with the following: anticoagu-
lants, H. pylori agents, antibiotics, anti-cancer agents (anti-
neoplastics), antifungals, anti-inflammatories, infertility
agents, anti-HIV agents (antiretrovirals), immunosuppres-
sants, and osteoporosis agents.
4.5. Interactions with Herbs and Dietary
Supplements
Balsam of Peru and propolis are both known to cause
allergic sensitization in some people and have multiple
compounds in common, such as benzyl benzoate, benzyl
cinnamate, benzyl alcohol, benzoic acid, cinnamic acid,
caffeic acid, cinnamic alcohol, and vinallin. An increased
risk of allergic sensitization may occur if both products
are used together [17].
Copyright © 2012 SciRes. IJCM
Health from the Hive: Potential Uses of Propolis in General Health
Copyright © 2012 SciRes. IJCM
162
5. Summary and Conclusion
The evidence on bee propolis is very promising. Not only
can it be applied topically it may also be considered as an
alternative to antibacterial, antiviral, antifungal, anti in-
flammatory, antibiotic, antioxidant property in treatment
of low grade infections. Allergy and sensitivity to propo-
lis is uncommon but patients should be asked about ad-
verse reactions to bee stings, allergy to bee products and
sensitivity to pollen. In conclusion, propolis is a natural
medication with a promising future but further studies
should be conducted to investigate its merit and demerits
in clinical medicine.
6. Recommendations
Studies should be conducted on the effects of propo-
lis and these studies should meet the requirements of
basic principles of clinical research and trial.
Both clinical trials and demonstration studies should
be carried out to determine the efficacy and effec-
tiveness of propolis in human subjects.
The primary health care notion of appropriate tech-
nology should be encouraged through.
Controlled trials of native natural herbal products as
alternative medicine for good general and dental
health of the community.
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