hypersensitivity

Examples of hypersensitivity in the following topics:

• Hypersensitivity

  • A hypersensitivity reaction refers to an overreactive immune system triggered by allergies and autoimmunity.
  • Hypersensitivity (also called hypersensitivity reaction) refers to undesirable reactions produced by the normal immune system, including allergies and autoimmunity, and are commonly mediated by antibodies.
  • Hypersensitivity reactions require a pre-sensitized (immune) state of the host .
  • Cytotoxic Hypersensitivity (Type II) is an immune response to human cells with foreign antigens.
  • The common effects of Poison Ivy are the result of Type IV hypersensitivity.

• Allergies

  • An allergy is a hypersensitivity disorder of the immune system.
  • Allergy is one of four forms of hypersensitivity and is formally called type I (or immediate) hypersensitivity.
  • If an immuno-response is seen, it can be concluded that the patient has a hypersensitivity (or allergy) to that allergen.

• Glomerular Diseases

• Types of Adaptive Immunity

  • This process is the reason why memory B cells can cause hypersensitivity (allergy) formation, as circulating IgE from those memory cells will activate a rapid inflammatory and immune response.

• Systemic Lupus Erythematosus

  • It is a Type III hypersensitivity reaction caused by antibody-immune complex formation.

• Myocarditis and Endocarditis

  • Myocarditis is most often due to infection by common viruses, such as parvovirus B19, less commonly nonviral pathogens such as Borrelia burgdorferi (Lyme disease) or Trypanosoma cruzi, or as a hypersensitivity response to drugs.

• Coagulation

  • Additionally, endothelial damage caused by immune system factors like inflammation or hypersensitivity may also cause unnecessary thrombosis and embolism.

• Overview of Adaptive Immunity

  • Additionally, the memory cell function enables the development of hypersensitivity disorders, such as allergies and many chronic diseases (like multiple sclerosis or myasthenia gravis).

• Lymphoid Cells

  • Cytoxic T cells cause much of the damage associated with cell-mediated hypersensitivity, autoimmune disorders, and organ transplant rejection.

• Active and Passive Humoral Immunity

  • Immunity derived from passive immunization lasts for only a short period of time, and there is potential risk for hypersensitivity reactions and serum sickness, especially from gamma globulin of non-human origin.