What is a food allergy (hypersensitivity), Biology

Assignment Help:

What is a Food Allergy (Hypersensitivity)?

A food allergy or hypersensitivity is an abnormal response to a food by our immune system. As illustrated in Figure, this non-toxic allergic hypersensitivity is immune mediated, i.e. immunological mechanism is involved or suspected.

148_What is s Food Allergy (Hypersensitivity).png

To understand this mechanism, we need to refresh our understanding of the immune system Antibodies, we learnt, are immunoglobulin produced by plasma cells in response to an antigen or allergen. Antigen, you may already be aware, is usually a foreign substance (i.e. protein, bacteria, virus, polysaccharide etc.) that stimulates antibody production. Allergens, on the other hand, are substances foreign to the body that on interaction with the immune system causes an allergic reaction. Five classes of antibodies have been identified. Immunoglobin A (IgA), Immunoglobin D (IgD), Immunoglobin E (IgE), Immunoglobin G (IgG) and Immunoglobin M (IgM).


Related Discussions:- What is a food allergy (hypersensitivity)

Explain about left cerebral hemisphere, How is it structurally explained th...

How is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor activity of the right side of the

Simplification and selection of information of consciousness, Q. Simplifica...

Q. Simplification and Selection of information of Consciousness? Simplification and Selection of information: There is much "editing" that goes on in the mind-from the first cu

Function of dopamine in consciousness, Q. Function of Dopamine in conscious...

Q. Function of Dopamine in consciousness? An increase in dopamine activity produces an increase in wakefulness. Dopaminergic neurons in the ventral tegmental areas are constant

Simple lipids, SIMPLE  LIPIDS They are lipids formed of fatty acids an...

SIMPLE  LIPIDS They are lipids formed of fatty acids and alcohol without any additional group. e.g. fats or true fats,wax,cutin, suberin. Simple lipids are mainly of 2 types

Plant responses to specific stress conditions, Plant Responses to Specific ...

Plant Responses to Specific Stress Conditions By now you must have developed a feeling that plants are organised to function optimally under a set of environmental conditions.

PLASMODIUM LIFE CYCLE, elucidate a life cycle of a plasmodium that causes m...

elucidate a life cycle of a plasmodium that causes malaria

Source of the bacteria of salmonellosis, Q. Source of the bacteria of Salmo...

Q. Source of the bacteria of Salmonellosis? The initial source of the bacteria is the intestinal tract of birds, reptiles, farm animals, humans and occasionally insects. As int

Pulses - hypertension, Pulses Careful examination of both upper and lo...

Pulses Careful examination of both upper and lower limb pulses is useful in detecting coarctation, and other arterial stenosis. The carotid arteries should be checked for sten

Explain about the neuro trauma, Explain about the Neuro Trauma? Neuro o...

Explain about the Neuro Trauma? Neuro or head trauma includes brain injury, skull fractures, extraparenchymal or internal brain haemorrhage, Brain injury can be divided into th

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd