From: rpautrey2 on
NaturalNews.com
Originally published August 6 2008

Probiotics Can Help in the Treatment of Hay Fever
by Leslee Dru Browning

(NaturalNews) With the peak grass pollen season approaching,
scientists have revealed that a daily dose of probiotics can change
the immune status of people with hay fever. In the first human study
of its kind, scientists at the Institute of Food Research found that
probiotic bacteria in a daily drink can modify the immune system’s
response to grass pollen, a common cause of seasonal hay fever.

But they are not recommending that sufferers rush to the supermarket
shelves just yet. The changes found may not have an immediate effect
on symptoms.

“This was a pilot study based on small numbers of patients, but we
were fascinated to discover a response”, says research leader
Professor Claudio Nicoletti. “The probiotic significantly reduced the
production of molecules associated with allergy.”

Hay fever is an allergic reaction to pollen or fungal spores, most
commonly grass pollen. The immune system mistakes the spores for
harmful invaders and produces excessive amounts of the antibody IgE to
bind to them and fight them off.

IgE stimulates the release of histamine to flush out the spores, and
this irritates the airways making them swell, producing the symptoms
of hay fever.

In this study, volunteers with a history of seasonal hay fever drank a
daily milk drink with or without live bacteria over 5 months. The
study was double-blinded and placebo controlled, so neither the
volunteers nor the scientists knew who had been assigned the probiotic
drinks. The probiotic drinks contained Lactobacillus casei, a
bacterial species that has been widely studied for its health
promoting properties.

Blood samples were taken before the grass pollen season, then again
when it was at its peak (June), and 4 weeks after the end of season.
There were no significant differences in levels of IgE in the blood
between the two groups at the start of the study, but IgE levels were
lower in the probiotic group both at the peak season and afterwards.

At the same times, levels of the antibody IgG were higher, a type of
antibody that in contrast to IgE is thought to play a protective role
against allergic reactions.

“The probiotic strain we tested changed the way the body’s immune
cells respond to grass pollen, restoring a more balanced immune
response”, says Dr. Kamal Ivory, a senior member of the group.

The changes observed may also reduce the severity of symptoms, but
clinical symptoms were not measured in this study. That is one aim of
further research.

“These are really interesting results”, says Dr. Linda Thomas, head of
science at Yakult U.K., who provided the drinks and some of the
funding. “We are delighted that independent scientists found evidence
of this biological activity. The project was part of ongoing research
into the benefits of our probiotic strain. The Institute of Food
Research is well positioned to do this kind of fundamental research,
as it is unique in having the right combination of expertise in
microbiology, immunology, flow cytometry and human nutrition
research.”

Professor Nicoletti’s group intend to perform a similar study in the
near future to see if the immunological changes translate into a real
reduction in the clinical symptoms of hay fever. They would also like
to examine the mechanisms involved.

With more and more research revealing the benefits of probiotics I
believe it would be beneficial for anyone suffering from allergies or
digestion problems to add them in their diet. Probiotics have also
been shown to help people who suffer from food allergies. They are
available over-the-counter in capsule form.

Journal reference:

Ivory et al. Oral delivery of Lactobacillus casei Shirota modifies
allergen-induced immune responses in allergic rhinitis. Clinical &
Experimental Allergy, 2008; 0 (0): 080528223344047 DOI: 10.1111/j.
1365-2222.2008.03025.x

Source:

Institute of Food Research
(http://www.ifr.ac.uk/)


About the author
Leslee Dru Browning is a 6th generation Medical Herbalist &
Nutritionist from the ancestral line of Patty Bartlett Sessions;
Pioneer Mid-Wife & Herbalist. Leslee practiced Medical Herbalism and
Nutritional Healing for over 25 years and specialized in Cancer
Wellness along with Chronic Illness. She now devotes her career to
teaching people, through her writing, about Natural Healing from An
Herbal Perspective.






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