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)

Zoonoses disease-staphylococcosis, Staphylococcosis The disease is caused ...

Staphylococcosis The disease is caused by the ingestion of preformed toxin released by Staphylococcus aureus. Epidemiology: Staphylococci grow in meat, dairy and bakery prod

Acute renal failure and its etiology, Acute Renal Failure You know tha...

Acute Renal Failure You know that acute renal failure refers to the sudden deterioration in kidney function, characterised by reduced urine excretion to less than 10 ml/kg  bo

Conservation of biodiversity, Conservation of biodiversity is very importan...

Conservation of biodiversity is very important to maintain the ecological balance of ecosystem. Various steps for conservation of biodiversity: 1.           Creation of consc

Combined effects of drugs and alcohol, COMBINE D EFFECTS OF DRUGS AND ALCO...

COMBINE D EFFECTS OF DRUGS AND ALCOHOL - 1.       Alcohol + Barbiturates →  may lead to death . 2.       Alcohol + Antihistamines → Drowsiness 3.       Alcohol + Valium

Hypomagnesaemic tetany , Hypomagnesaemic tetany (grass tetany, grass stagge...

Hypomagnesaemic tetany (grass tetany, grass staggers, lactation tetany) Hypomagnesaemic tetany is a multifactorial complex metabolic disorder, which is  characterized by reduct

Roles of glycogen metabolism, Glycogen is a huge polymer of glucose residue...

Glycogen is a huge polymer of glucose residues linked by α1-4 glycosidic bonds with branches every 10 residues or so by α1-6 glycosidic bonds.  Glycogen gives an significant energy

Metamorphosis, Metamorphosis The phenomenon of metamorphosis is descri...

Metamorphosis The phenomenon of metamorphosis is described as a process during development which involves a remarkable change in morphology and physiology of the larva, so tha

What do you mean by hydraulic modelling, Q. What do you mean by hydraulic m...

Q. What do you mean by hydraulic modelling? Modelling is neither new nor relevant to hydraulic engineering only. It is practiced in the field of hydraulic machinery for testing

Bacterial diseases-black disease, Black disease It is a fatal peracute...

Black disease It is a fatal peracute disease caused by Clostridium novyi Type B. It is associated with liver damage caused by liver fluke. The onset of the disease is rapid fo

Examine the differences between dna and rna, Examine the differences betwee...

Examine the differences between DNA and RNA. Explain why DNA is the most favorable molecule for genetic material and how RNA compares to it in this respect.

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