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How do I know if my
baby has an allergy?
Allergies in
newborns
A recent
study showed that children who weigh more, at any gestational age, have a higher
risk of developing food allergies, or childhood eczema, however, there was no
increased risk of hay fever, and the paper, published in the Journal of Allergy
and Clinical Immunology, found that the risk of food allergy Food increased by
44%, and eczema by 17%, for each kilogram of excess weight.
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Causes
of sudden skin allergy in infants
The
recent study and its results
Researchers
looked at approximately 2.1 people with eczema, 70,000 with food allergies of
various kinds, as well as 100,000 people with hay fever. All of these are
allergic conditions. Eczema is also known as allergic dermatitis, and hay fever
is like allergic rhinitis.
The data
came from more than 15,000 studies, most of them in Europe, however, such
allergies, in addition to asthma and anaphylaxis, are found in 30%, and 40% of
the world's population.
They
looked at whether a child's birth weight was associated with the risk of
allergies in future childhood, even after correcting for weight, during the
gestation period in which the child was born, and the researchers found a
significant increase in risk, which was not found with children, who were
Abnormally small at birth at gestational age.
Thus, it
appears that these children have an immune system, which is preparing to resist
allergic responses, but severe growth restriction is associated with an
increased risk of developing other diseases, later in life, some of which are
congenital and some are acquired.
What are
the symptoms of allergy
Previous
research studies on birth weight and allergic diseases
The
results are consistent with previous research, which shows an increased risk of
emergency visits for asthma in newborns, who had a high birth weight, compared
with those who had a normal weight range, and after 4.5 kg (the upper limit of
normal birth weight), caused Each 100g weight gain, in a 10% increase,
increased the risk of an asthma emergency visit. The older study also cited low
income status, male gender, and indigenous ancestry as risk factors.
The
various mechanisms that may increase the risk of developing asthma in children
include deterioration of lung function, as a result of a decrease in airflow
rate with expiration, in addition to an increase in the tendency of the small
pulmonary airways to close when the pressure inside them decreases during
expiration.
In
addition, the action of the respiratory muscles is also weaker in these
children. Obesity also increases the generalized inflammatory state, and may
release molecules that cause inflammation of the airway. Fat cells may also
cause activation of mast cells, which are directly related to spasm of smooth
muscles in the airway. .
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implications
and future directions
What does skin allergy look like
Researcher
Cathy Gutford says:
You don't necessarily grow out of a childhood
allergy, and sometimes you do, sometimes you don't. Things like an egg allergy
will grow with a lot of kids, while a peanut allergy is more likely to persist,
she says. They appear even in adults and may go undetected due to the lack of
research in this field.
To
increase or decrease the risk of developing allergies as a result, she says,
mothers of older children must know how to change the conditions in their homes
to protect their children from allergies. The answer lies not in ensuring
growth-restricted children, but in understanding how this condition contributes
to allergy protection.
Most of
the studies reviewed were conducted in young children, and the researchers
point to the need to conduct these investigations in older age groups, such as
older children, adolescents and adults, to understand how and when low birth
weight works, to improve a person's immunity, and to reduce susceptibility to
infection. Sensitively, they also want to know whether this relationship
fizzles out after a few years, or remains active over time.
neonatal
allergy
Treatment
of facial sensitivity in newborns
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be interested in normal infant sleep
Sick
allergens
A food
allergy is a hypersensitivity reaction, which means that before an allergic
reaction occurs, to an allergen in a food, and a person needs to be previously
exposed to or allergic to the food. Upon initial exposure, the allergen
stimulates lymphocytes, (specialized white blood cells), to produce antibodies.
Allergen-specific IgE antibodies.
This IgE
is then released, attached to the surface of mast cells in various tissues of
the body, and the next time a person eats that particular food, the allergen in
the specific antibody, IgE, spills onto the surface of the mast cells,
prompting the cells to release chemicals such as histamine.
These
chemicals cause different food allergy symptoms, Dr. Stubler said, depending on
the tissues in which they are released.
Risk of
food allergy in premature infants
Risk of
food allergy in premature or low-birth-weight babies. Premature or
low-birth-weight babies have increased intestinal permeability compared to
full-term or normal-birth-weight babies.
To
determine whether premature or low-birth-weight babies have an increased risk
of food allergy compared to full-term or normal-birth-weight babies, the
following was done:
A study
was conducted on a Manitoba cohort born in 1995, using the Manitoba Health
Services Insurance Plan (MHSIP) database. county health.
A
diagnosis of food allergy (ICD-9-CM code 693 in hospital/medical claims, or
prescription injectable epinephrine, except the only diagnosis of toxin
allergy) was reported until 2002.
general.
A total
of 13,980 children were born in 1995 AD, and they still live in the province of
Manitoba, and among these, 592 children (4.23%) were found to have food
allergies, and epinephrine was prescribed to 316 children, or 2.26%, knowing
that Neither gestational age, nor birth weight group had a statistically
significant increased risk for food allergy.
conclusion
It was
concluded from the foregoing in this study:
Prematurity and low birth weight were not
associated with a change in the risk of developing food allergies in infancy.
Clinical
implications
The
immaturity of the gastrointestinal tract, or immune response, does not appear
to alter the risk of developing food allergies, raising the question whether
early exposure to food antigens might protect premature infants by increasing
immune tolerance to those antigens
With my best wishes