In this article we will discuss about innate and acquired immunity. Innate Immunity: It refers to all the defence elements with which an individual is born and always available to protect the body. It is a non-specific type of defence system. (i) It is present from the time of birth and inherited from parents. (ii) It consists of four types [...]
In this article we will discuss about:- 1. Meaning of Autoimmune Disease 2. Causes of Autoimmune Disease 3. Treatment. Meaning of Autoimmune Disease: Autoimmunity is a condition characterized by the presence of serum autoantibodies and self-reactive lymphocytes (T-cells). It manifests sometimes when the body loses immune tolerance (body's condition to distinguish its own self-antigens from foreign non-self-antigens and not mounting [...]
In this article we will discuss about the primary and secondary immunodeficiencies seen in humans. Primary Immunodeficiencies: An immunodeficiency that arises from a genetic or developmental defect in the immune system is called a primary immunodeficiency. Such defects are present at birth and become manifest at different stages during development. Most defects affect either the lymphoid (giving rise to B [...]