Scientists have unveiled how a cascade of allergic reactions to cats are triggered, raising hopes of preventative medicine. Scientists from University of Cambridge have discovered the pathogenesis of cat related allergies. According to the team, the body’s immune system detects cat allergen, leading to symptoms such as, irritation, coughing and sneezing.
Researchers led by Dr Clare Bryant of
the University of Cambridge studied allergenic proteins found in particles of
cat skin, known as cat dander, which
is the most common cause of cat allergy. They found that cat allergen activates
a specific pathway in the body, once in the presence of a common bacterial
toxin. The team from Cambridge University discovered the trigger that can cause
allergic reactions in one in ten people.
This triggers a large immune response
in allergy sufferers, causing symptoms such as rashes, coughing, wheezing,
sneezing and a runny nose. They explained.
Researchers say treatment could be on
the market within five years. Scientists remained opportunistic that a pill or
inhaler could be used to treat the problem.
The only and most reliable treatment
currently available for symptoms is to take antihistamines or to have a multiple
injections to build up a tolerance to the allergen.
“New treatments to block this
pathway raise hopes of developing medicines to protect sufferers”, they said.
Allergy UK a charity said the
research, published in Journal of Immunology, “is a big step forward” in
understanding how cat allergen causes such severe allergic reactions.
Dr Bryant said, "By
understanding the triggering mechanism, there are now drugs that have been
designed that are in clinical trials for other conditions, such as sepsis, that
could potentially then be used in a different way to treat cat allergy and to
prevent cat allergy."
The charity Allergy UK said "Cat
allergen is particularly difficult to avoid as it is a 'sticky' molecule that
is carried into every building on people's shoes and clothes," said
director of clinical services Maureen Jenkins.
"It can also still be found in
a home, on the walls and ceiling or fittings, even a few years after a cat has
ceased to live there.
"Therefore, this new
information identifying the specific receptor interaction in the immune system
could pave the way for treatments for those with persistent disease triggered
by cat allergen and, in the future, potentially dog and house dust mite
allergen."
Allergic reactions happen when the
immune system overreacts to a perceived or foreign body or danger. In the due
course, a lot of chemicals are produced by the body such as histamines which
cause the symptoms.
Meanwhile cats are among the most
notorious culprits for pet allergies. Folks with cat allergy are allergic to
proteins in the urine, dried flakes of skin (dander) and saliva. Symptoms of
cat allergy which may include; a rash, cough, sneezing, a runny nose and asthmatic
syndrome may appear in a few minutes after contact with the cat or just
smelling the presence of a cat.
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